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Патент USA US2116446

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May 3, 1938.
‘
J. msmMuRA
2,115,445
APPARATUS TO OPEN 0R SHUT THE-DOORS OF AUTOMOBILES
‘ Filed June 8, 1936
3 Sheets-Sheet 1
May 3, 1938»
J. NISHIMURA
'
2,116,446
APPARATUS TO OPEN 0R SHUT THE DOORS OF AUTOMOBILES
Filed June a, 1936
a sheets-sheet 2
fig
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14
24
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I
3mm;
J Niskimw?q
May 3, 1938.
J. NISHIMURA
25116346
APPARATUS To OPEN OR SHUT THE DQORS 0F AUTOMOBILES
‘Filed June 8, 19:56
a"
i
3 Sheets->Sheet 3
W.
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I
Show“; :.
Patented May 3, 1938
‘ 2,116,446 ,
UNITED STATES‘ PATENT OFFICE,
2,116,446
APPARATUS
,
'ro OPEN on snow 'rns noons
0F AUTOMOBILES
Jin Nlshimura, Tokyo, Japan, assignor to Jidosha
Koki Kabushiki _Kaisha, Tokyo, Japan -
‘
Application June ‘8, 1936, Serial No. 84,223
In Japan April 30, 1936
2 Claims.
This invention relates to actuating mechanisms
for automobile or other doors, in which a vacuum
operating pump having a switch valve to open
or shut the door is arranged at a suitable posi
5 tion in the automobile body, the said pump and
a locking piece provided in the door being con
nected by suitable motion transmitting mech
(Cl. 2684-4)
the switch valve body and the corners of the valve .
box. The said clearance spaces allow the con
duits 8 and 9 to communicate with the atmos
phere through perforations 49,. 50 and 5| here
inafter illustrated with respect to Figs. 7 to 10.
Oi
In opening the door 2, a locking piece 13 is re
‘ leased at the initial portion of the stroke of the
pump 6, while the door is opened during the re
maining portion of the said stroke.
In reducing this feature of the invention to, ‘10
10 ing constructed as a ?exible member, and has‘
for its object to effect the opening and closing practice the piston rod ll of the pump 6 is con
anism, and the portion of the said mechanism
corresponding to the hinged part of the door be
of the doors in an easy manner and from a point
at a. distance from the doors, such as the chauf
feur's seat.
'
15 ’ The drawings show one example of the appa
nected with a swivel rod l5 at its front end by
means of a pivot I5’. A slide link i6 is ‘ar
ranged to move horizontally ‘in the door. A
connecting piece I1 is secured on the side of the 15
ratus to open or close the doors according to this ' door to be hinged.
invention; in which
'
‘ Fig. 1A is a side view thereof, Fig. 13 a section
al view‘ along line I--I in Fig. 1.
'
Fig. 2 is a plan view thereof.
,
20
Fig. 3- is a side view of the vacuum operating
a rear cylindrical member IB' extending rear~ "
wardly from the connecting piece by means of a
pump partly in section.
Fig. 4 is a plan view thereof.
The said connecting piece
has a cylindrical member l'8 extending into the
door wall and receives the rear end portion-of
the slide link 16. The front end portion of a
cylindrical member i9 is pivotally jointed with 20
.
'
Fig. 5 is a section of a buffer arranged in the
26 said pump.
Fig- 6 is an end view of one form of switch
valve adapted to be used for this invention, Fig.
7 is a longitudinal section. thereof, Figs. 8, .9,
and 10 are cross sections of the switch valve on
30 ‘line 1-1 in Fig. 7. and show the relative posi
tions in which each part is set in three different
pin 20. and the front portion of the swivel rod
i5 is slidably inserted in the rear portion of the
cylindrical member I9. A flexible member 2| 25
such as a spring is arranged between the front
end of the swivel rod I5 and the rear end of the
slide link in the space enclosed by the cylindrical
member IS, the connecting piece I‘! and the
cylindrical members l8, l8’. Slits 22 (Figs. 3 0
and 4) are provided along the axis‘ of the cylin
drical member l9 and are adapted to receive
~
‘
.
In'the drawings, i represents a rear portion , projections 23 secured at the front end of the
.
of the side wall ‘of the passenger compartment of swivel rod l6.
Two guide rods 24 are secured at the front
35 the automobile, 2 a. door provided at the ‘pas
senger’s entrance, 2' a window of the door, 3 a end of the cylinder of the pump 6 and arranged
front portion of the said side wall. A hinged parallel to the piston rod H. A disc-like mem
is provided to pivotally connect the said door to ber 25 having a channel section is ‘secured at
the rear portion of the side wall and includes a the free ends of the said guide rods 24. The
said member 25 and the cylinder of the pump 6
40 pivot 5. A vacuiun operating pump 6 is ar
are ?rmlyheld by the inner and outer plates of
ranged horizontally in the space provided be
tween the inner and outer plates constituting the the rear portion l of the side wall 3 by support
rear portion of the side wall, while a switch. valve ing‘members 26, 21 and 21'.
A buffer 28 is ?tted at the front end of the
1 is ?tted on a suitable part in the chauffeur’s
pump and its cylindrical casing 29 has an in 45
4 compartment, for example, on the dashboard a
control handle ‘I’ is provided for the said vvalve. ner ring shaped ?ange 80 in the front part there
The valve 1 is connected through conduits 8 and of. A conically wound spring 3| is fastened at
9 to both sides of the pump respectively,'and . its large end to the said ?ange and at its small
end to the central portion of a ?ne cylindrical
through a conduit iii to a vacuum producing por
tion of a carburetter for the automobile engine. body 32-inserted deeply into the said spring 3!.
The cylindrical body 82 has a bottom plate”
Upon operating the valve 1 a vacuum is pro
duced in the left or'the right hand side of the at its rear end. The rear end of a finespring 34
pump 6. whereby the piston II is caused to‘ inserted into the cylindrical body is fastened at
the bottom plate 33, while its front end is se
. move towards the left or the right hand direc
working conditions.
tion. Clearance spaces l2 are provided between
cured to a valve stem "'0! a valve 35., The
2
2,116,446
I butler 2I composed of the aforesaid members is
to be provided according to requirement, thus,
when it is required to provide such a buifer, the
conduit I communicating with the switch valve
‘I is connected at the front end of the cylindri
cal casing 29, and an edge II of the connected
portion is utilized as a valve seat for the valve.
‘II. The valve 35 has a fine groove I‘! on its sur
face, so that the pump 6 and conduit I are al
10 ways in communication with the said ?ne
grooves, even when the valve is seated.
Upon suitable actuation of the switch valve
hereinafter described and provided on the dash
board of the vehicle the space provided at the
15 right hand side of the piston is connected to the
vacuum portion, and the piston moves towards
the right hand direction with the result that
at the beginning of the movement, the slide link
II is moved towards the right hand direction
.20 through the swivel rod l5 and ?exible member 2! ,
and through a lever II connected with the said
link and horizontal member II the locking piece
II is returned to impinge on a stop 44 against
the action of a spring 43, whereby the door is
25 held partially open. In this instance, the pro
jections 23 secured at the front end of the swivel
rod II reach the front end of the slit 2!. On
move towards the right hand direction. On the
contrary, when the cook 41 is set in the position
shown in Fig. 9, the conduit I is kept in vacuum.
and the conduit I communicates through the
groove 50 to the atmosphere, so that the piston I I
of the pump I is moved towards the left hand di
rection. Whereas, when the plug I‘! is'set in the
position as shown in Fig. 10, the conduits I and
I are both cut of! from the vacuum portion and
communicate to the atmosphere, whereby there 10
will be no pressure difference between both sides
of the piston ll‘. of the pump I. In this latter
case in which the piston II is not affected by
vacuum. it is possible to control the door I
manually. For this purpose, a slide member II 15
secured at the locking piece II has a projection
40' at its outside, a lever II having a vertical
groove 54 is secured at the swivel shaft 52 extend
ing through the inner plate I’ and outer plate I", '
and the projection II’ is engaged in the groove 20
54. Therefore, when the shaft 52 is turned by
means of the inside handle 51 or outside handle
56, the slide member 40 slides towards the right
or left hand direction. so that the locking piece II
is moved in theright or left hand direction.
25
What I claim. is:
' - 1. Door and latch control mechanism for motor
continuing the right hand movement of the piston ’ vehicles comprising a cylinder, a piston adapted
II, the connecting piece I‘! secured at the rear to reciprocate within said cylinder, a rod con
30 side of the door is pressed through the swivel rod
nected to said piston and projecting through
I I and the cylindrical member ID, so that the door one end of said cylinder, a slide member pivotally
is opened outwardly around the pivot 5, as shown connected at one end to said connecting rod, a
in Fig. 2. In this case, as the ?exible member 2| sleeve surrounding said slide member and con
extends into the space provided between the rear nected to a door of the‘vehicle, lugs on said con‘
35 edge of the door and the front edge of the rear necting rod, said sleeve having longitudinal slits
portion of the side wall, there is no di?iculty in . intermediate its ends adapted to receive the lugs 35
opening the door though the said transmitting on said connecting rod, a slide rod connected at
mechanism may be distorted. On the other hand, one end to the door latch and having its free
when the switch valve is actuated in the opposite end arranged in alignment with and adjacent to
direction, the left hand side oi’ the piston and the free end of the connecting rod, said slide rod
40
vacuum portion are connected, and the air in the . being adapted to be actuated by said connecting
opposite side leaks through the clearance l2,
so that the piston moves towards the left hand
direction to shut the door, and at last, by the
45 inertia of the door shutting motion, the locking
piece is locked into the key hole provided in
the side wall.
'
,
~ When the aforesaid buffer is provided, it pre
vents the sudden creation of a vacuum in the in
terior oi’ the pump so that the door will be silently
controlled. It is not however necessary to provide
the said buffer.
One- example of the switch valve to be used in
this invention is shown in Figs. 6 to 10. The
switch valve includes a valve box II, while a com
'municating body II is inserted ?rmly into 'one
end portion of the said valve box and provided
with three nipples I’, I’, and II’. The nipple I’
-is connected with the conduit I to establish com
yrs
munication' between. the switch valve ‘I and pump
I, the nipple I’ with, the conduit I having the same
communication as the conduit I, and the nipple
II’ with the conduit II to connect the valve 1 to
the vacuum producing part in the automobile. A
plug 41 is inserted from the other end of the valve
box 4|. This plug has a transverse hole II and
three longitudinal grooves II, II, and Ii ar
ranged at the nuadrant points or a circle respec
tively as shown in Figs. 8 and 9. The control
handle I‘ as before mentioned is secured at the
outside end of the plug stem I2. when the plug
I1 is set in the position shown in Fig; 8, the con
duit I is kept in vacuum, and the conduit I com
municates through the groove II to the atmos
phere. whereby the piston ll of the pumpImay ‘
rod in one direction, and means for subjecting
said piston ultimately on opposite sides thereof
to pressure and suction for actuating said con
necting rod, whereby the initial movement of said 45
rod will unlatch the door and continued move
ment of said rod in the same directionwill swing
the door to open position.
2. Door and latch control mechanism for motor
vehicles comprising a cylinder, a piston adapted m.
to reciprocate within said cylinder, a rod con
nected to said piston and projecting through one
end of said cylinder, a slide member pivot'ally
connected at one end to said connecting, rod, a
sleeve surrounding said slide member and con 55
nected to a door of the vehicle, lugs on said con
necting rod, said sleeve having longitudinal slits
intermediate its ends adapted to receive the lugs
on said connecting rod, a slide rod connected at
one end to the door latch and having its free end
arranged in alignment with and adjacent to the
free end of the.connecting rod, said slide rod be
ing adapted to be actuated by said connecting rod
in one directiomvalve controlled means communi
eating with said cylinder on opposite sides of said
piston and valve controlled mechanism for plac 65
ing said ‘~icylinder into communication with at
mosphere and suction alternately and on oppo
site sides oi’ said piston for actuating said rod,
whereby movement of said rod in one direction
will unlatch the door and swing the latter into 70
open position. while movementof said rod in the
opposite direction willclose said door.
smmsnnmaa.
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