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Патент USA US3094294

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June 18, 1963
K. HEHL
3,094,284
FLASH .IJNIT AND MAGAZINE THEREFOR
Filed Oct. >10’. gseo
s Sheets-Sheet 1
Jn vem‘or:
Kwaz m1
June 18, 1963
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I
K. HEHL
'
3,094,284
FLASH UNIT AND“ MAGAZINE THEREFOR
Filed Oct. 10, 1960
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V
'3 Sheets-Sheet 2
Jn van for:
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M
June 18’, 1963 l
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‘
Filed Oct. 1o,_19eQ '
K. HEHL
3,094,284
FLASH. UNIT AND MAGAZINE THEREFOR
3 Sheets-Sheet a
United States Patent ,0 ice
1
Patented June 18, 1963
2
FIGURE 10 is a view similar to FIGURE 9, the trans
3,094,284
FLASH UNIT AND MAGAZINE THEREFOR
Karl Hehl, Lossbur , Wurttemberg, Germany, assignor to
port device being shown in a position which it occupies
ARBURG-Feingeraetefabrik oHG, Hehl & Siihne, Loss
FIGURE 11 is a view similar to that of FIGURE .10,
the transport device being shown at the end of the load
during the loading step.
burg, Wurttemberg, Germany
Filed Oct. 1.0, 1960, Ser. No. 61,728
' ing step.
Claims priority, application Germany Aug. 23, 1960
Claims. (01. z40--1.3)
Referring now to the drawings, there is shown a ?ash
.unit comprising a housing 1 in which a re?ector 2 is
The present invention relates to a ?ash unit and a 10 embedded, the housing 1 being attached to a connect
ing stud 3. The re?ector is formed with an elongated
magazine therefor.
'
‘guide slot 4 extending from the top to the middle, a
More particularly, the present invention relates to a
central opening 5, and a lower discharge opening 6.
The housing 1 is adapted to have a ?ash bulb magazine
12 attached to it, as will be described in greater detail
‘below, in such a manner that ?ash bulbs 51, 511, 5111,
?ash unit, i.e., a unit capable of producing short intense
spur-ts of light, such as are needed, for example, for
photographic purposes, which'unit is equipped with a
' magazine containing a supply of ?ash bulbs so that spent‘
, 5IV and 5v may pass from the magazine through the slot
bulbs may be replaced by fresh bulbs.
,_ 4 into a position occupied by the bulb 5a, as shown in
Existing ?ash units are equipped, with complicated
FIGURE 3. The rear of the housing .1 is closed by a
storage devices which hold the supply of ?ash bulbs as
‘well as with complicated mechanisms for moving the 20 _ rear wall 7 which is formed with arcuate cut-outs 16 and
1-6I, thesecut-outs being concentric with an electrical
bulbs from the storage device to the socket and for
socket 9 which is in alignment with the opening 5. The
ejecting the spent bulbs from the socket.
.rear wall 7 is formed with additional cut-outs 7I and 711.
vIt is, therefore, an object of the present invention to
The ?ash unit further comprises a transport device
.' provide a magazine-equipped ?ash unit which overcomes
.constituted by 1a feed disk 8 which is mounted for ro
the above disadvantages.
25
. tation by the socket 9 about an axis which coincides with
It is another object of the present invention to provide
that of the opening 5. The disk is provided with actuat
. a magazine-equipped ?ash unit which is of simple construc
tion and which can readily be mass-produced at low cost.
It is a further object of the present invention to provide
ing handles ‘81 and ‘81I which project rearwardly through
‘ provision of a container for ?ash bulbs which container
bulbs, with a curved feed channel ‘8111 which leads from
._ itself can be used as the magazine for a ?ash unit.
the cut-out of the rim 8a to the socket 9, and with an
. the arcuate slots 16 and 16!, so that the disk may be
. a ?ash unit which incorporates a ‘feed mechanism having 30 turned by manipulation of these handles. _ The disk is
formed with an abutment rim 8a having a receiving‘ cut
. but a single movable part.
out corresponding in size to that oflone of the ?ash
_ The objects of the present invention also include the '
With the above objects in view, the present invention 35 inner abutment 81". The housing additionally contains
the other electrical components of the ?ash unit, namely,
. resides mainly in a ?ash unit comprising a housing ‘hav
a capacitor 10 and a ‘battery, 11. The electrical inter
connections between -these parts and a switch (not shown)
are conventional and are, therefore, not illustrated.
feeding them to the socket and for, thereafter, ejecting 40' The magazine 12 consists of a single piece of thermo
them from the housing. The magazine has a slotted at
plastic and preferably transparent m-ateral, and may be
_ ing a. ?ash bulb socket, a ?ash bulb magazine adapted to
, contain a series of consecutive ?ash bulbs, and a transport
. device for receiving the ?ash bulbs from the magazine, for
taching portion adapted to be spread apartaud to be.
made by ‘an injection molding process. The magazine
mounted on the housing in spread apart condition with
the series of ?ash bulbs arranged one above the other,
‘ 12, which has ‘an elongated ovaloid cross section, as shown
, inQFIGURES '6. and 7, is formed with an internal par
‘ , so that the bulbs are fed into the housing solely under the 45 tition wall 13a extending throughout the length of the
in?uence of gravity. The magazine itself may constitute ‘ magazine and having a central longitudinal slot 13. The
‘the original container for the ?ash bulbs, so that the pur
: chaser can attach the container directly to the ?ash unit
flash bulbs within the: magazine have socket portions of
reduced cross section, it being these last-menuoned por
without having to load ?ash bulbs into a magazine. ,
. tions which pass through the slot 13, thereby holding the
Additional objects and advantages of the present inven 50 ?ash bulbs in place.
'7 tion vw'll become apparent upon consideration of the fol
The magazine 12 is formed .at its bottom, i.i'e., at its
lowing description when taken in [conjunction with the acj ., output end, with a base portion 17 ‘having sides 171, this
; companying drawings, in which:
base portion being received in a correspondingly shaped
‘
FIGURE l-is a front view of ‘a ?ash unit, with the . recess 18a at the upper part of the housing 1, as shown
‘ ?ash bulb magazine being attached thereto.
55 best in FIGURE 4a.v The bottom of the magazine 12
FIGURE 2 is a rear view of the unit shown in FIG
has two lug portions 15 and 15I which, when the
' URE 1.
_ magazine is mounted on the housing, as described below,
1
FIGURE 3 is a sectional view taken on the line~3—3 '
are received in grooves 18. The lower end of the maga
of FIGURE 2.
‘
» zine 12, which constitutes an attaching portion, is addi
FIGURE 4 is a fragmentary view showing part of the 60 tionally formed with an elongated slot 14 which extends
upwardly from the bottom output end of the magazine.
The construction of the magazine is such that when there
is no stress on the lug portions 15 and 151, i.e., when
FIGURE 5 is a view similar to that of FIGURE 4 but
the magazine is not attached to the housing 1, the lower
showing only the magazine.
'
'
FIGURE 6 is a sectional view taken on the line 6—6 65 most end of the slot 14.will be narrowed, as shown in
j ‘ structure of FIGURE 2.
FIGURE 4a shows the top of the ?ash unit housing.
. of‘ FIGURE 5.
_
FIGURE 5. However, when the magazine 12 isat
.
FIGURE 7 is a sectional view taken on the line 7—-7 -
of FIGURE 5.
FIGURE -8 is a side view of the magazine.
I
FIGURE '9 is a fragmentary front view, partly in sec
Htion, showing the ?ash unit without the re?ector.
Ita-ched to the housing 1, the lug portions 15 and 15I
. which project into the grooves 18, will be spread apart,
. thereby widening the lowermost end of the slot 14, as‘
70
shown in FIGURE 4. To obtain this result, the grooves
‘ 18 which receive the lug pontions 15 and 15I diverge
as they run from one side of the housing 1 towards the
3,094,284
3
c
other, so that when the base portion 17 is placed partly
1. A ?ash unit comprising, in combination:
into the recess ‘18a with the lugs .15 and 15I being re
ceived by the grooves 18 at a point where these grooves‘
(a) a housing having a bulb receiving portion and a
?ash bulb socket communicating with said receiving
are relatively close together, and when-the base portion
portion;
17 is then slid within the recess 18a towards the front
(b) a ?ash bulb magazine adapted to contain, and
normally to retain within it, a ‘series of consecutive
?ash bulbs and constituting a self-contained unit
side of the housing 1, as viewed in FIGURE 41:, the lug
portions 15‘ and 15I will be oammed apart, thereby widen
ing the slot 14. During this sliding movement,’
4
I claim:
well
as after completion thereof, the sides 17I of the base por
tion 17 will engage the sides of the slot 18a,"ther'eby 10
which is connectable to said receiving portion of said
steadying the magazine 12.
'
The signi?cance of 1 ‘ "e widened slot ‘174
ing portion adapted to be spread apart when
the magazine is connected to said receiving portion
the mounted
and stressed state of the magazine'12 is the following:
when the magazine is not mounted on the housing 1,
the narrowed bottom end of the slot‘14 will ifrictionally 15
engage the lowermost of the’ ?ash bulbs in the magazine
with a force sufficient to prevent the series of ?ash bulbs
from dropping out'of the magaziiie. However, "when
the slot 14 is widened, in the manner explained above,
there will be nothing to" prevent the?ash bulbs from 20
moving out of the output’ e'nd'bf the magazine’ under
the in?uence of ‘gravity, and it is--precisely this gravity
feed which
relied on to "feed consecutive ?ash bulbs
through the receiving cut-out in'riml 8a into‘the‘curv'ed
feed channel 8m.
'
'
25
'For optimum results,‘ the grooves 18are s‘o arranged
that the slot 14 will‘ hot'be widened sufficiently to allow
the ?ash bulbs to pass ‘through the bottom‘ end of the
magazine until‘the' magazine‘ has ‘been completely or
almost completely attached to the housing ,1,
,
The operation "of the transport device is as follows:
The disk S'is rotated by v‘turnin'gthe handles 8I and/or
811.
As soon ‘as the‘receiving cut-out‘ of the rim 8a
housing with the series of ?ash bulbs one above
the other, said magazine having a slotted attach
of said housing so that said bulbs may then leave
said magazine and be fed into said receiving por
tion of said housing solely under the in?uence of
gravity;
(c) said housing and said magazine being provided
with means ‘for spreading said slotted attaching por
tion of said magazine, thereby widening the bottom
end of said slot when said magazine is attached to
‘said housing; and
-
(d) a transport means on said housing for receiving
?ash bulbs ‘from said receiving portion, for feeding
them from there to said socket, and for thereafter
ejecting them from said housing.
2. A ?ash unit as de?ned in claim 1 wherein said
spreading means comprise lug portions on saidmagazine
and horizontal grooves in said housing, said grooves di
30 verging from one side of said housing towards the other,
whereby when said magazine is ‘slid from said one side
towards the other while said lug portions are received
in said grooves, respectively, said lug-portions will be
spread apart, thereby widening said bottom end of said
'Imost ?ashv bulb ‘in ‘the magazine drops into the ‘feed 35 slot, said lug portions and grooves being so arranged
that said bottom end of said slot will be widened only
channel 8111 'until "it ‘comes into engagement “with the
when said magazine vhas been at least substantially ‘com
abutment ‘81V, the‘ free p'as‘sag'e‘of this'?ash bulb‘ ‘through
the bottom'output end'of'the‘magazin'e being made pos
pletely‘ attached to said housing.
comes‘into alignment "with the magazine 12, the"lower
sible in the manner‘ explained'above. This ’ is, shown in
3. A ?ash unit as de?ned in claim 1 wherein said trans
FIGURE 9. As ‘the diskj8 is rotated further, the rim 40 ‘port'means comprises a rotatably mounted feed disk vhav
ing ‘an abutment rim formed with a cut-out through which
8a will prevent the next ?ash 'bulb‘fromdropping. The
a fresh bulb ‘is received, an abutment for retaining the
rotation of the disk 8‘ will'also causelthe'i?as'h ‘bulb in
the feed channel 8111 to be 'moved‘downwa'rdly through
fresh bulb received through said cut-out, and a ‘feed
channel‘ for moving the fresh bulb to said bulb socket,
the vertical slot 4 towards the opening 5 ‘where this
bulb will engage and ultimately ‘displace the spent bulb 45 the latter serving as a'support for rotatably mounting
still in the socket 9', thereby'ejecting 'this‘la'st-mentioned
4‘ A ?ash unit as de?ned'in claim 3 wherein said feed
bulb through the opening 6,;as‘shown in FIGURE 10.
disk comprisesv a plurality of rearwardly extending han
Upon continued rotation of the disk ‘8, the new‘ bulb'will
itself enter the socket‘ 9, ‘and this is shown in FIGURE ' dles and‘ilwherein said casing comprises a rear wall ‘formed
11. To make possible this type'of ‘ejection, the socket 50 with a plurality of arcuate cut-outs concentric with the
said-disk.
9 is of such construction that itv will readilyv retain a
?ash bulb but will be ‘able to release ‘it when the, cam
ming e?ect on the fresh ?ash bulb, which'isproduced
,
'
I
axis about which said disk is rotatable, said handles pro
jecting through said cut-outs.
5. 'A ?ashiunit as de?ned in claim 1 wherein said maga
by the interaction _‘ of ‘the curved feed channel 8111 and
zine, when disconnected from said housing, constitutes a
the vertical guide slot '4, causesithis new ?ash'bulb to 55 packing container for ?ash bulbs contained therewithin.
engage the spent bulb.
I
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I
‘6. In a ?ash unit, the combination which comprises:
It will be appreciated that the above¥described struc
a housing having ai?ash bulb'socket; and a transport
ture is readily susceptible 'to' mass production techniques,
means for receiving ?ash bulbs, for feeding them to said
particularly, the magazine which, as ‘stated before, can
socket, and for thereafter ejecting them from said hous
be made as a single'piece by an injection molding proc 60 ing, said transporting means consisting of‘a' single mova
ess. Furthermore, the manner in which fresh bulbs are
moved to replace spent bulbs entails‘ the use of but a
single moving part, so that the ‘operation of the device
ble part in the form of a disk which is mounted on said ‘
housing for rotation-about said socket, said disk hav
ing, at its periphery, a receiving portion within which a
fresh ?ash bulb is received and a feed channel extend
Moreover, the mag'azineits'elf may constitute the orig 65 ing from said receiving portion to the center of the disk
inal container for the ?ash bulbs, so that the consumer
for moving the ?esh bulb to said socket where‘the fresh
will be able to take the ?ash lbulb container and use
bulb may engage and eject a spent bulb held by said ‘
it as the magazine without it being necessary for him
socket.
to purchase the bulbs separately aud'to load them into
7. In a ?ash unit, the combination which comprises:
70
a magazine.
a housing having a re?ector formed with a central open
It will be understood that the above description of the
ing, a guide slot extending from the top of said re?ector
present invention'is susceptibleto various modi?cations, ,
to said central opening, and a discharge opening below I
changes and adaptations, and' the same are intended to
said central opening; a ?ash bulb socket ‘carried'by said
is exceptionally troubledree.
_
‘
be comprehended within the meaning and range of equiva
75 housing and in alignment with said central opening;
lents of the appended claims.
3,094,284
6
and a feed disk mounted on said housing for rotation
in said socket, displace said spent bulb and eject the
about said socket and having ‘at its rim a receiving 'por
same through said discharge opening.
tion and a feed channel extending from said receiving
References Cited in the ?le of this patent
portion to the center of said disk, said feed disk being
located close to said re?ector ‘and rotating through an
UNITED STATES PATENTS
arc ‘wherein ?rst that end of said feed channel which is
1,955,559
Narrow ______________ __ Apr. 17, 1934
at said receiving portion and ?nally that end of said
2,437,956
Hessel _______________ __ Mar. 16, 1948
feed channel ‘which is at said center of said disk is in
2,672,039
Schwartz et ‘a1 _________ ._.. Mar. '16, 1954
alignment with said guide slot so that upon rotation of
2,774,861
Shaw et a1 ____________ __ Dec. 18, 1956
10
said feed disk; a 'fresh bulb in said receiving portion and
2,835,787
Mihalyi ______________ __ May 210, 1958
slidably arranged in said guide slot will be cammed to
2,864,938
Shaw et a1 ____________ .._ Dec. 16, 1958
ward said socket and, upon engagement of a spent bulb
3,015,023
Dayton et a1 __________ __ Dec. 26, 1961
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