close

Вход

Забыли?

вход по аккаунту

?

JP3179186

код для вставкиСкачать
Patent Translate
Powered by EPO and Google
Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JP3179186
Abstract: To provide a sensor elevating device for a fish finder which can raise and lower an
ultrasonic sensor with a low cost and compact configuration. A sensor elevator device 1 for a fish
finder includes an electric motor 2, a screw shaft 3, a nut 4, a main shaft 6, an ultrasonic sensor
7 and the like. An external thread 3a is formed on the outer peripheral surface of the screw shaft
3, and a nut 4 is screwed into the external thread 3a. A nut 4 is integrally connected to the base
end of the main shaft 6, and the screw shaft 3 and the main shaft 6 are arranged such that their
axial centers coincide with each other. An ultrasonic sensor 7 is disposed at the end of the main
shaft 6, and a screw shaft storage portion 41 capable of storing the screw shaft 3 is provided in
the main shaft 6. [Selected figure] Figure 1
Sensor lifter for fish finder
[0001]
The present invention relates to a sensor elevating device for a fish finder for raising and
lowering an ultrasonic sensor used in a fish finder in water.
[0002]
Conventionally, a fish finder is provided with a sensor elevating device for raising and lowering
an ultrasonic sensor in water.
Then, by driving the sensor lifting device when using the fish finder, the ultrasonic sensor is
04-05-2019
1
projected below the bottom of the ship, and the ultrasonic sensor is stored in the bottom of the
ship (for example, Patent Document 1 etc.).
[0003]
FIG. 5 shows a specific example of a conventional sensor lifting device 100 used in a fish finder.
The conventional sensor lifting apparatus 100 includes a screw shaft 101 (male screw) and a
motor 102 for rotating the screw shaft 101, a shaft arm 103 (female screw) attached to the
screw shaft 101, and a main connected to the shaft arm 103 A shaft 104 and an ultrasonic
sensor 105 mounted on the tip of the main shaft 104 are provided. In the sensor lifting
apparatus 100, the motor 102 is driven to rotate the screw shaft 101, and the rotational
movement is converted into the vertical movement by the shaft arm 103 attached to the screw
shaft 101. As a result, the shaft arm 103 is moved in the vertical direction, and the ultrasonic
sensor 105 is moved up and down via the main shaft 104 connected to the shaft arm 103.
[0004]
Japanese Utility Model Application Hei 6-42598
[0005]
By the way, in the conventional sensor lifting apparatus 100, there is a limit to the
miniaturization of the apparatus because the mounting space between the two shafts such as the
screw shaft 101 and the main shaft 104 and the shaft arm 103 connecting them is required. .
Further, the main shaft 104 is connected to the screw shaft 101 via the shaft arm 103, and a
distance from the rotation axis of the screw shaft 101 to the main shaft 104 is generated by the
length of the shaft arm 103. Therefore, the motor torque is not directly transmitted to the main
shaft 104, and in order to raise and lower the ultrasonic sensor 105, it is necessary to use the
motor 102 having a relatively large torque. As a result, in addition to the enlargement of the
sensor lifting apparatus 100, there is a problem that the apparatus cost also increases.
[0006]
The present invention has been made in view of the above problems, and an object thereof is to
provide a sensor elevating device for a fish finder which can raise and lower an ultrasonic sensor
04-05-2019
2
with a low-cost and compact configuration.
[0007]
In order to solve the above-mentioned problems, the device according to claim 1 is a device for
raising and lowering an ultrasonic sensor used in a fish finder in water, which is arranged to
extend in the vertical direction of the device, A screw shaft having a male screw formed on a
surface, an electric motor drivingly connected to rotate the screw shaft, and a female screw hole
screwed to the outer peripheral surface of the screw shaft; A nut moving along the axial direction
of the screw shaft with rotation, and an axial center thereof are arranged to coincide with the
axial center of the screw shaft, and the nut is integrally connected to the proximal end, For a fish
finder comprising: a main shaft on which the ultrasonic sensor is disposed; and a screw shaft
storage portion provided in the main shaft and capable of storing the screw shaft. The sensor
lifting device as its gist.
[0008]
Therefore, according to the invention of claim 1, by driving the electric motor to rotate the screw
shaft, the nut is moved in the vertical direction of the device which is the axial direction of the
screw shaft.
Then, the main shaft integrally coupled to the nut moves in the vertical direction together with
the nut, and the movement vertically moves the ultrasonic sensor provided at the tip of the main
shaft in water.
According to this configuration, the driving force of the electric motor can be efficiently
transmitted to the main shaft as compared with the conventional sensor lifting device. Therefore,
the ultrasonic sensor can be raised and lowered using a relatively small electric motor. Further,
as the ultrasonic sensor is raised, the screw shaft can be stored in the screw shaft storage portion
in the main shaft. Therefore, the sensor lifting apparatus can be miniaturized, and the apparatus
cost can be reduced.
[0009]
According to a second aspect of the present invention, in the first aspect, the signal cable
electrically connected to the ultrasonic sensor and wired along the axial direction of the main
shaft in the main shaft, The gist is that the nut is formed with a cable insertion portion for
04-05-2019
3
inserting the signal cable.
[0010]
The invention according to claim 3 is, in claim 2, that the main shaft is a cylindrical member
having a hollow portion inside, and the hollow portion contains the screw shaft storage portion
and the signal in the hollow portion. The gist is that a partitioning member for partitioning the
cable into a cable storage portion for storing a cable is provided.
[0011]
According to a fourth aspect of the present invention, in the third aspect, the nut has a notch
formed in a part when viewed from the axial direction, and the notch plays a role as the cable
insertion part. The gist is that the dividing member is an elongated plate-like dividing plate, and
the upper end portion of the dividing member is fixed to the cutout surface of the cutout.
[0012]
In a fifth aspect of the present invention, in the fourth aspect, the lower end portion of the screw
shaft is provided with the cutout as the cable insertion portion similarly to the nut, and the
cutout of the cutout in the nut is A guide nut member arranged with the cutaway surface facing
the same side as the cutaway surface and being non-fixed and slidable with respect to the
partition plate, and a position closer to the tip end side of the main shaft than the guide nut
member And the cutaway portion as the cable insertion portion in the same manner as the nut,
and the cutaway portion of the cutaway portion of the nut is disposed with the cutaway surface
directed to the same side as the cutaway surface, and the lower end portion of the partition plate
And a plate fixing member fixed thereto.
[0013]
The invention according to claim 6 is, in any one of claims 1 to 5, fixed to the upper end portion
of the nut, restricting the rotation of the nut when the screw shaft rotates and controlling the nut
as a shaft of the screw shaft. A guide plate provided so that a guided portion for moving in a
direction projects radially outward of the screw shaft, and a case for housing the screw shaft, the
nut, and the main shaft, the guide A gist is that a guide groove engaged with the guided portion
of the plate has a cylindrical storage case extended in the axial direction.
[0014]
As described above in detail, according to the inventions of claims 1 to 6, it is possible to provide
a sensor elevating device for a fish finder which can raise and lower the ultrasonic sensor with a
04-05-2019
4
low cost and compact configuration.
[0015]
BRIEF DESCRIPTION OF THE DRAWINGS Sectional drawing which shows the sensor raising /
lowering apparatus for the fish finder of one Embodiment.
The disassembled perspective view which shows a storage case and a cover member.
The disassembled perspective view which shows a nut, a guide plate, a main shaft, a division
plate etc. FIG.
Sectional drawing which shows operation | movement of a sensor raising / lowering apparatus.
Sectional drawing which shows the raising / lowering apparatus for the conventional fish finder.
[0016]
Hereinafter, an embodiment in which the present invention is embodied in a sensor elevating
device for a fish finder will be described in detail based on FIGS. 1 to 4.
[0017]
As shown in FIG. 1, the sensor lift device 1 for a fish finder according to the present embodiment
includes an electric motor 2, a screw shaft 3, a nut 4, a guide plate 5, a main shaft 6, an
ultrasonic sensor 7, and a storage case. It has 8 mag.
The sensor lifting and lowering device 1 for a fish finder is a device for lifting and lowering the
ultrasonic sensor 7 in water, and is attached to, for example, a bottom plate 9 of a ginger
provided on the bottom of a small vessel.
04-05-2019
5
[0018]
The storage case 8 is formed in a cylindrical shape, and the screw shaft 3, the nut 4, the guide
plate 5, the main shaft 6, the ultrasonic sensor 7 and the like are stored inside thereof.
The storage case 8 has a size of about 9 cm in outer diameter and about 60 cm in length.
As shown in FIGS. 1 and 2, the storage case 8 of the present embodiment is configured of an
upper case 11 disposed above and a lower case 12 disposed below. The storage case 8 is
provided with a pair of lid members 13 and 14 spaced apart in the vertical direction in order to
assemble the upper case 11 and the lower case 12.
[0019]
On the lower surface of the upper lid member 13 and the upper surface of the lower lid member
14, two arc-shaped fixing portions 21 for assembling the upper case 11 are respectively
protruded and provided. Then, the end of the upper case 11 is fixed by screwing or the like in a
state where the end portion of the upper case 11 is fitted to the outer surface of each fixing
portion 21 curved in an arc shape in each of the lid members 13 and 14. As described above,
since the fixing portions 21 of the lid members 13 and 14 have an arc shape, the cylindrical
upper case 11 can be reliably fixed to the fixing portions 21. The upper case 11 is formed using
a resin pipe (vinyl chloride pipe) made of vinyl chloride.
[0020]
The screw shaft 3 is a rotating shaft having a male screw 3 a formed on the outer peripheral
surface, and is disposed in the upper case 11 so as to extend in the vertical direction of the
device. The electric motor 2 is disposed outside the storage case 8 at the proximal end side of the
screw shaft 3. As the electric motor 2 of the present embodiment, a small motor having a
diameter of about 5 cm is used. The electric motor 2 is fixed to the lower surface of the upper lid
member 13 in a posture in which the motor rotation shaft 2a is parallel to the axial direction of
the storage case 8 (a posture in which the rotation shaft 2a is directed upward). The rotary shaft
2 a of the electric motor 2 is drivingly connected to the screw shaft 3 via a plurality of gears 26,
27, 28.
04-05-2019
6
[0021]
As shown in FIGS. 1 and 3, a nut 4 having a female screw hole 4 a is screwed into a male screw 3
a formed on the outer peripheral surface of the screw shaft 3. The nut 4 moves along the axial
direction of the screw shaft 3 as the screw shaft 3 rotates. A guide plate 5 is fixed to the upper
end surface of the nut 4 by screwing. Guide portions 31 are provided on the guide plate 5 so as
to protrude outward in the radial direction of the screw shaft 3. Further, in the upper case 11 of
the storage case 8, a guide groove 32 (see FIG. 2) engaged with the guided portion 31 of the
guide plate 5 is axially extended. Then, when the guided portion 31 of the guide plate 5 engages
with the guide groove 32, the rotation of the nut 4 is restricted when the screw shaft 3 rotates,
and the nut 4 is moved in the axial direction of the screw shaft 3 .
[0022]
In addition, the nut 4 is integrally connected to the base end (upper end in FIG. 1) of the main
shaft 6. More specifically, the main shaft 6 is a cylindrical member having a hollow portion 33
inside, and in the present embodiment, a resin pipe made of vinyl chloride (for example, a
polyvinyl chloride pipe having a nominal diameter of 30 mm) is used as the main shaft 6 It is
used. By making the main shaft 6 made of resin, it is possible to keep the cost of parts low as
compared to the case where a metal main shaft is used. Further, the base end portion of the main
shaft 6 is fixed by screwing or the like in a state of being fitted to the outer peripheral surface of
the nut 4. As a result, the main shaft 6 is arranged such that the axial center coincides with the
axial center of the screw shaft 3.
[0023]
An ultrasonic sensor 7 is disposed at the tip of the main shaft 6. Further, in the hollow portion 33
of the main shaft 6, the screw shaft 3 is accommodated. Furthermore, in the hollow portion 33 of
the main shaft 6, a signal cable 35 electrically connected to the ultrasonic sensor 7 is wired along
the axial direction of the main shaft 6. The ultrasonic sensor 7 includes a sensor unit 7a having a
circular cross section on the tip side, and the sensor unit 7a includes an ultrasonic transducer for
transmitting and receiving ultrasonic waves, and an ultrasonic wave for changing the irradiation
direction of ultrasonic waves. A stepping motor or the like for moving the vibrator (the direction
of the vibrating surface) is accommodated. The ultrasonic sensor 7 of the present embodiment is
04-05-2019
7
a very small sonar having a diameter of about 7 cm. Further, to the signal cable 35 of the
ultrasonic sensor 7, an electrical signal such as a drive signal of a stepping motor or a
transmission / reception signal of an ultrasonic wave is transmitted.
[0024]
As shown in FIG. 1 and FIG. 2, an annularly projecting fixing portion 22 is provided on the lower
surface of the lower lid member 14, and the outer surface of the fixing portion 22 is the upper
end of the lower case 12. It is fixed by screwing etc. in the state where the part was inserted. The
lower case 12 is formed, for example, using a polyvinyl chloride pipe having a nominal diameter
of 75 mm. The ultrasonic sensor 7 is housed in the lower case 12.
[0025]
As shown in FIG. 3, in the present embodiment, the nut 4 to which the upper end of the main
shaft 6 is fixed has a notch 38 in part so as to have a D-shaped outer diameter when viewed from
the axial direction. Was formed. The notch 38 serves as a cable insertion portion for inserting the
signal cable 35 wired in the main shaft 6. Further, at the upper end portion of the main shaft 6, a
cable lead-out portion 40 is cut out and formed at a position corresponding to the cut-out portion
38 of the nut 4. A signal cable 35 passing through the inside of the main shaft 6 is drawn to the
outside through the notch 38 of the nut 4 and the cable lead portion 40 of the main shaft 6.
[0026]
In the present embodiment, in the hollow portion 33 of the main shaft 6, a partition plate 43 (a
partition for partitioning into a screw shaft storage portion 41 for storing the screw shaft 3 and a
cable storage portion 42 for storing the signal cable 35). Members) are provided. The upper end
portion of the dividing plate 43 is screwed and fixed to the notch surface 39 of the notch 38 of
the nut 4.
[0027]
At the lower end portion of the screw shaft 3, a guide nut member 45 having the same shape as
04-05-2019
8
the nut 4 is provided. The guide nut member 45 has a notch 46 as a cable insertion portion like
the nut 4 and is disposed with the notch surface 47 directed to the same side as the notch
surface 39 of the notch 38 of the nut 4 . Further, the guide nut member 45 is provided nonfixedly and slidably with respect to the partition plate 43.
[0028]
A plate fixing member 49 having the same shape as the nut 4 is fixed to the lower end portion of
the dividing plate 43. The plate fixing member 49 also has a cutout 50 as a cable insertion
portion as the nut 4 and is disposed with the cutout surface 51 directed to the same side as the
cutout surface 39 of the cutout 38 of the nut 4. The plate fixing member 49 is located closer to
the end of the main shaft 6 than the guide nut member 45.
[0029]
As shown in FIG. 1, the upper lid 13 is provided with an upper limit position detection switch 53
for detecting the upper limit position of the sensor lifting device 1 and stopping the electric
motor 2. Further, as shown in FIG. 1 and FIG. 2, the lower lid member 14 is provided with a lower
limit position detection switch 54 for detecting the upper limit position of the sensor lifting
device 1 and stopping the electric motor 2. There is. More specifically, an upper limit position
detection switch 53 is disposed on an extension of the arc of the fixed portion 21 on the lower
surface of the upper lid member 13 and in a non-formed portion of the fixed portion 21. A lower
limit position detection switch 54 is disposed on the upper surface of the lower lid member 14
on the extension of the arc of the fixed portion 21 and in the non-formed portion of the fixed
portion 21 (see FIG. 2). In this case, the diameter of the storage case 8 can be reduced as
compared with the case where the position detection switches 53 and 54 are disposed inside the
fixed portion 21, and the sensor lifting device 1 can be miniaturized. The position detection
switches 53 and 54 are electrically connected to the electric motor 2 and output position
detection signals to the electric motor 2. Then, the drive of the electric motor 2 is stopped based
on the position detection signal.
[0030]
As shown in FIGS. 1 and 3, a switch operating portion 60 is provided at a position opposite to the
guided portion 31 in the guide plate 5 with reference to the axial center of the main shaft 6. The
04-05-2019
9
switch operation unit 60 is a first operation unit 61 for turning on and off the upper limit
position detection switch 53 and turning on and off the switch 53, and a second operation unit
62 for turning on and off the lower limit position detection switch 54 and turning on and off the
switch 54. Equipped with In the guide plate 5, the first operation portion 61 has a tab shape
protruding in the planar direction of the guide plate 5. Further, the second operation portion 62
is provided at a position adjacent to the first operation portion 61, and has an L-shape bent in the
direction in which the lower lid member 14 is present.
[0031]
Similar to the guide groove 32, an elongated groove 63 extending in the axial direction is also
formed in the upper case 11 at the opposite position where the guide groove 32 is formed (see
FIG. 2). When the ultrasonic sensor 7 is moved up and down, the switch operating portion 60 of
the guide plate 5 is moved in the vertical direction in the groove 63 so as to extend in the groove
63, and each position detection switch 53 provided on the lid members 13 and 14 , 54 on and
off. Specifically, when detecting a school of fish, the nut 4 and the main shaft 6 fall downward in
the storage case 8 with the rotation of the screw shaft 3. Then, as shown in FIG. 4, when the
lower limit position of the sensor lifting device 1 is reached, the second operation portion 62 of
the switch operation portion 60 of the guide plate 5 contacts the lower limit position detection
switch 54 and the switch 54 Turn on. On the other hand, at the end of the fish school detection,
the nut 4 and the main shaft 6 move upward with the rotation of the screw shaft 3 and the
ultrasonic sensor 7 is stored in the storage case 8 (see FIG. 1). Then, when the upper limit
position of the sensor lifting device 1 is reached, the first operation portion 61 of the switch
operation portion 60 of the guide plate 5 contacts the upper limit position detection switch 53 to
turn on the switch 53.
[0032]
Thus, in addition to the function of restricting the rotation of the nut 4, the guide plate 5 of the
present embodiment can function as an operation member of the position detection switches 53
and 54. Therefore, the apparatus cost can be reduced as compared with the case where the guide
plate 5 and the operation members of the position detection switches 53 and 54 are separately
provided. Further, since the switch operating portion 60 in the guide plate 5 is provided at a
position opposite to the guided portion 31, the position detection switches 53 and 54 can be
operated reliably without being in the way of the guided portion 31. be able to.
04-05-2019
10
[0033]
In the guided portion 31 of the guide plate 5, a holding piece 65 for holding the signal cable 35
is provided in a protruding manner. The signal cable 35 is fixed by the sandwiching piece 65 of
the guide plate 5 and then pulled out of the apparatus through the guide groove 32 in which the
guided portion 31 is disposed in the storage case 8. With this configuration, there is no need to
separately form a member for fixing the signal cable 35, a cable drawing hole in the storage case
8, and the like, and the device cost can be reduced.
[0034]
The signal cable 35 is electrically connected to a detector main body 70 that constitutes a fish
finder. The detector main body 70 is electrically connected to the electric motor 2 and drives the
electric motor 2 by outputting a control signal. In the present embodiment, a fish finder 75 is
configured by the detector body 70 and the sensor lifting device 1.
[0035]
Therefore, according to the present embodiment, the following effects can be obtained.
[0036]
(1) In the sensor lifting apparatus 1 of the present embodiment, the main shaft 6 is disposed
such that the axis coincides with the axis of the screw shaft 3, and the ultrasonic sensor 7 is
provided at the tip of the main shaft 6. ing.
According to this configuration, the driving force of the electric motor 2 can be efficiently
transmitted to the main shaft 6 as compared with the conventional lifting device 100. Therefore,
the ultrasonic sensor 7 can be raised and lowered using the relatively small electric motor 2.
Further, as the ultrasonic sensor 7 is lifted, the screw shaft 3 can be stored in the screw shaft
storage portion 41 in the main shaft 6. Therefore, the sensor lifting apparatus 1 can be
miniaturized, and the apparatus cost can be reduced.
[0037]
04-05-2019
11
(2) In the sensor lifting apparatus 1 of the present embodiment, the signal cable 35 connected to
the ultrasonic sensor 7 is wired along the axial direction in the main shaft 6 and the notch
formed in the nut 4 The signal cable 35 is inserted into the portion 38. In this way, the signal
cable 35 of the ultrasonic sensor 7 can be reliably guided at a relatively short distance to the
upper side where the detector main body 70 is disposed.
[0038]
(3) In the sensor lifting apparatus 1 of the present embodiment, the dividing plate 43 is provided
in the hollow portion 33 of the main shaft 6. The hollow portion 33 is divided by the partition
plate 43 into a screw shaft storage portion 41 for storing the screw shaft 3 and a cable storage
portion 42 for storing the signal cable 35. As a result, the division plate 43 intervenes between
the signal cable 35 and the screw shaft 3 so that the signal cable 35 does not contact the screw
shaft 3. Therefore, the problem that the signal cable 35 and the screw shaft 3 are damaged or the
screw shaft 3 becomes difficult to rotate can be reliably avoided.
[0039]
(4) In the sensor lifting apparatus 1 of the present embodiment, the notch 38 which plays a role
as a cable insertion portion in the nut 4 is formed to have a D-shaped outer shape when viewed
from the axial direction. In this case, the notch surface 39 of the notch 38 is a flat surface, and
the upper end portion of the elongated plate-like partition plate 43 can be reliably fixed to the
notch surface 39.
[0040]
(5) In the sensor lifting apparatus 1 of the present embodiment, the guide nut member 45 and
the plate fixing member 49 have the same shape as the nut 4 (D-shaped outer shape when
viewed from the axial direction). The guide nut member 45 and the plate fixing member 49 are
disposed in the main shaft 6 with the notches 47 and 51 facing the same side as the notches 39
of the nut 4. The lower end portion of the partition plate 43 is fixed to a plate fixing member 49
disposed on the tip end side of the main shaft 6. Further, the inner surface side of the middle
portion of the dividing plate 43 is in contact with the notch surface 47 of the guide nut member
04-05-2019
12
45 provided at the lower end portion of the screw shaft 3. In this case, the partition plate 43 can
be fixed so as not to move in the radial direction in parallel with the axial direction (apparatus
vertical direction) of the main shaft 6 in the main shaft 6. Further, when the main shaft 6 moves
at the time of raising and lowering of the ultrasonic sensor 7, the partition plate 43 moves
together with the main shaft 6 in a state in which the intermediate portion is in contact with the
cutout surface 47 of the guide nut member 45. For this reason, it is avoided that the middle part
of division plate 43 bends and touches external thread 3a of screw shaft 3. Therefore, by
adopting this configuration, it is possible to reliably avoid the problem that the signal cable 35
and the partition plate 43 do not contact the screw shaft 3 and the signal cable 35 and the male
screw 3a of the screw shaft 3 are damaged. .
[0041]
(6) In the sensor lifting apparatus 1 of the present embodiment, the guide plate 5 for restricting
the rotation of the nut 4 is fixed to the upper end portion of the nut 4. In this case, since the
guide plate 5 can be formed thin, the size increase of the lifting device due to the provision of the
guide plate 5 can be minimized, and the sensor lifting device 1 can be miniaturized. .
[0042]
The embodiment of the present invention may be modified as follows.
[0043]
The ultrasonic sensor 7 used in the sensor lifting device 1 of the above embodiment is a smallsized sonar with a relatively small diameter, but is not limited to this.
For example, the present invention may be embodied in a sensor elevating device that raises and
lowers a large ultrasonic sensor (a general ultrasonic sensor used for a large ship) having a
diameter of about 30 cm.
[0044]
In the sensor lifting apparatus 1 of the above embodiment, the resin pipe is used as the main
shaft 6, but if the ultrasonic sensor 7 is large and the strength of the main shaft 6 is insufficient,
metal such as stainless steel is used. You may use the pipe made as a main shaft.
04-05-2019
13
[0045]
In the sensor lifting apparatus 1 of the above embodiment, the elongated plate-like partition plate
43 is used as a partition member for partitioning the hollow portion 33 of the main shaft 6 into
the screw shaft storage portion 41 and the cable storage portion 42. Not limited to this.
For example, a tubular member may be used as a dividing member, and the inner side of the
member may be a cable storage portion and the outer side may be a screw shaft storage portion.
In this case, a fitting portion conforming to the outer shape of the tubular member is formed in a
part of the nut 4 and the tubular member is fixed to the fitting portion.
[0046]
In the sensor lifting apparatus 1 according to the above embodiment, the nut 4 is moved in the
axial direction while the rotation of the nut 4 is restricted by the guide plate 5 fixed to the upper
end face of the nut 4. It is not a thing. Specifically, for example, a guide groove is provided on the
outer peripheral surface of the nut 4, and a protruding portion protruding on the inner surface of
the storage case 8 is provided along the axial direction. Then, by engaging the guide groove with
the projection, the nut 4 may be moved in the axial direction while restricting the rotation of the
nut 4.
[0047]
Reference Signs List 1 sensor lifting device 2 electric motor 3 screw shaft 3a male screw 4 nut 4a
female screw hole 5 guide plate 6 main shaft 7 ultrasonic sensor 8 storage case 13 upper lid
member 14 Lower lid member 21 fixed portion 31 guided portion 32 guide groove 33 hollow
portion 35 signal cable 38 cut portion 39 cut surface 40 cable lead portion 41 screw shaft
storage portion 42 cable storage portion 43: Partition plate as partition member 45: Guide nut
member 47: Notched surface 49: Plate fixing member 51: Notched surface 53: Upper limit
position detection switch 54: Lower limit position detection switch 60: Switch operation unit 61:
Configuration of switch operation unit First operation unit 62 to be operated ... Second operation
unit 65 constituting a switch operation unit ... Clamping piece 75 ... Fish finder
04-05-2019
14
Документ
Категория
Без категории
Просмотров
0
Размер файла
26 Кб
Теги
jp3179186
1/--страниц
Пожаловаться на содержимое документа