US2490935A

US2490935A - Staple remover

Info

Publication number: US2490935A
Application number: US606527A
Authority: US
Inventors: Cseh Louis Von
Original assignee: SPEED PRODUCTS Co Inc
Current assignee: SPEED PRODUCTS Co Inc; SPEED PRODUCTS COMPANY Inc
Priority date: 1945-07-23
Filing date: 1945-07-23
Publication date: 1949-12-13
Anticipated expiration: 1966-12-13

Description

y Dec. 13, 1949 Y 1 .,voN csr-:H 2,490,935

- STAPLE REMOVER Filed July 23, 1945 2 Sheets-Sheet. 1

INVENTOR ATTORNEY Patented Dec. 13, 1949 STAPLE REMOVER Louis von Cseh, New York, N. Y., assignor to Speed Products Company, Inc., Long Island City, N. Y., a corporation of New York Application July 23, 1945, Serial No. 606,527

20 Claims.

This invention is an improved staple remover and the objects, advantages and functional and structural features thereof will be better understood from the following detailed description considered in the light of the accompanying drawing wherein:

Fig. 1 is a side viewof the staple remover according to my invention, illustrating the plunger raised and the rectilinearly displaceable elevator depressed prior to removing a clinched staple.

Fig. 2 is a view similar to Fig. l but showing the slidably guided plunger depressed and the elevator raised extracting a staple.

Fig. 3 is a fragmentary front View of Fig. 1.

Fig. 4 is a fragmentary front View of Fig. 3 showing the elevator extracting a staple.

Fig. 5 is an enlarged vertical sectional View of Fig. 1 illustrating the elevator depressed.

Fig. 6 is an enlarged vertical sectional view of Fig. 2 showing the elevator raised and the plunger depressed.

Fig. 7 is a horizontal transverse sectional view on the line 1 1 of Fig. 5.

Fig. 8 is a rear elevational view of Fig. 5.

Fig. 9 is a cross sectional view on the line 9 9 of Fig. 8.

Fig. 10 is a cross sectional View on the line IU-I of Fig. 8, and

Fig. 11 is a side view of the support.

The staple remover broadly designated R comprises a support S, a reciprocably guided plunger P, a vertically and rectilinearly guided elevator E and a closure or cap C.

The support S is a channel shaped member having a rear wall I0 integrally merged with the forwardly extending and spaced walls I I defining the opening I2.

Extending forwardly of and integrally with the rear wall I0 but spaced from the biased and lower ends I3 of the sides I I of the support S is the bottom plate or sustaining member I4 having forwardly extending and spaced rectilinear projections or lugs I provided with tapering terminals I6 having the outer sides II converging forwardly and their outer corners I8 rounded as shown in Fig. 9.

Lugs I5 define a gap I9 for removably receiving the rectilinear staple lifting tongue 20 oiset 2 slidable displacement of the elevator E relative to the support S the spaced sides II of the latter each embodies an elongated slot slidably guiding the laterally extending lugs 26 integral with and projecting from the wings 23.

Journaled to the spaced sides I I of the U-shaped support S is the rotatable shaft carrying pinion 3I in mesh with teeth 32 of the elevator E and the teeth 33 of the inwardly depressed portion 34 of the plunger P. In eiect it may be said that the pinion 3| is actuated or driven by the rack dened by the teeth 33 of the plunger P and when so actuated, causes the displacement of the rack dened by teeth 32 of the hollow rib 22 of the reciprocable elevator.

The plunger P is a hollow substantially square shaped casing wherein its front wall 35 embodies the depressed portion 34 and its side walls 36 closely but slidably straddle the spaced sides I I of 20 the support S while its rear wall 3'I slidably engages the rear wall I 0 of the Support S. In other Words, the plunger P telescopically receives a part of the support and, is slidably guided thereon although it is normally held in a raised or elevated 25 position by the tapered helicoidal spring 38 havfrom lug 2l extending forwardly of and integral I with the hollow boss or rib 22 of the elevator El Extending laterally of boss 22 and integral therewith are the wings 23 slidably retained against the rear wall I0 of the support S by the spaced inwardly crimped portions or ribs 24 struck into the sides I I. To further insure proper ing an end seated on the

top faces

39 and 40 of the spaced sides II and the wall I0 of the support. and having its narrower end retained by a cap C anchored to the plunger by the crimped portion 42. Detents as 43 are bent inwardly from the rear wall I0 and the spaced side walls IIvof the support S and serve to prevent slippage of the lower part of the spring into the channel I2 defined by the side walls I I of the support. To prevent removal of the plunger from the support fastening means in the form of a set screw 44 is fastened to and carried by the rear wall 31 of the plunger and this set screw extends into the elongated guide slot 45 of the rear wall I0 of the support S.

By the arrangement disclosed, the plunger is normally held raised by the spring 38. In such relation tongue 20 and its tapered terminal 46 are coplanar with that is, in the same plane as the lugs I5 and the tapered terminals I6 respectively at which time lug 2| of the elevator E is resting on the seat `or sustaining member I4 which embodies the spaced depressed portions or ribs 41 and 48 adapted to sustain the staple remover upright when not in use. However, when in yuse of the staple remover the latter may -be tilted on rib 41 Awhich serves las -fulcrum means.

Prior to 4withdrawing a staple 50 anchoring sheet material 5I the staple remover is rocked on the rib 41 as explained above to present the |tervthe rack on said plunger on the displacement of adapted tobe inserted under said bridge and between said legs, an elevator having a staple lifting tongue removably disposed between said lugs and adapted to be inserted under said bridge, a plunger, means for slidably guiding said plunger on said support, means for slidably guiding said Y i taining said lugs and tongue tilted relative to said staple. Y A Y 14. In a device for removing ra clinched staple having a bridge and bent legs, a support comprising a rear wall provided with forwardly projecting and spaced sides, a seat at the lower part of said wall and spaced from said sides and including Y spaced and forwardly projecting lugsadapted to be inserted under said bridge and betweenrsaid legs, an elevator displaceable linearly relative to said support and comprising a channeled member including 'an upstanding boss and a staple lifting elevator relative to said support, and rack and pinion means common to said elevator and plunger for actuating said elevator upon displacement of said plunger relative to said support whereby said tongue lifts said bridge and said legs straddle and are lifted along and beyond the sides of said lugs.

10. In a device for removing a clinched staple having a bridge and bent legs, a support having a forwardly projecting seat including spaced lugs adapted to be inserted under said bridge and between said legs, an elevator having a staple .lifting tongue removably disposed between said lugs and adapted to be inserted under said bridge, a. plunger, means for slidably guiding said plunger on said support, means for slidably guiding` said elevator relative to said support, a pinion, means rotatably sustaining said pinion, and spaced rack means in mesh with said pinion for actuating said elevator upon displacement of said plunger relative to said support whereby said tongue lifts said bridge and said legs straddle and are lifted along and beyond the sides of said lugs.

11. In a staple remover, a support having .an upstanding w-all including forwardly extending sides and having a forwardly projecting seat including spaced lugs dening a gap, an elevator having a tongue removably interposed in said gap and normally coplanar with said lugs, a plunger, means for slidably guiding said plunger on said support, rack yand pinion means common to said plunger and elevator, and spring means for holding said plunger raised for automatically positioning said tongue between said lugs.

12. In a staple remover, a support having an upstanding wall including forwardly extending sides and having a forwardly projecting seat 1ncluding spaced lugs defining a gap, a shaft rotatably carried by said support, a pinion secured to said shaft, an elevator having a tongue removably interposed in said gap and normally coplanar with said lugs, a plunger having a rack, means for slidably guiding said plunger on said support, spaced racks on said elevator and plunger in mesh with said racks, and spring means for holding said plunger raised for automatically positioning said tongue between said lugs.

13. In a device for removing a staple, a support having an upstanding wall including forwardly extending sides and having a forwardly projecting seat including spaced lugs dening a gap, an elevator having a tongue removably interposed in said gap and normally coplanar with said lugs, a plunger, means for slidably guiding said plunger on said support, rack and pinion means common to said plunger and elevator, spring means for holding said plunger raised for automatically positioning said tongue between said lugs, and means depending from said seat for bodily susof said lugs.

. ably and linearly guide tongue substantially normal to said boss and removably disposed between said lugs and adapted to be inserted under said bridge; a plunger having spaced and outer sides closely straddling but slidably guided by said forwardly projecting sides, said support and elevator having means to slidably and linearly guide the latter relative to said support, a pinion, a shaft journaled to said spaced and outer sides and carrying said pinion, and spaced rack means carried by said plunger and boss and in mesh with said pinion for linearly raising said elevator upon linear downward displ-acement of said plunger relative to said support whereby said tongue lifts said bridge and said legs straddle and are lifted along and beyond the sides 15. In adevicefor removing a clinched staple having a bridge and bentleg's. a support comprising a rear wall provided with forwardly projecting and spaced sides, a seat at the lower part of said walland spaced from said sides and including spaced and forwardly projecting lugs adapted to be inserted under said bridge and between said legs, an elevator displaceable linearly relative to said support and comprising a channeled member including an upstanding boss and a staple lifting tongue substantially normal to said boss and removably disposed between said lugs and adapted to be inserted under said bridge; a plunger having spaced and outer sides closely straddling but slidably guided by said forwardly projecting sides, said support and elevator having means to slidthe latter relative to said support, a pinion, a shaft journaled to said spaced and outer sides and carrying said pinion, spaced rack means carried by said plunger and boss and in mesh with said pinion for linearly raising said elevator upon linear downward displacement of said plunger relative to said support whereby said tongue lifts said bridge and said legs straddle and are lifted along and beyond the sides of said lugs, and spring means cooperating with said support and plunger for normally holding the latter elevated to arrange said tongue substantially coplanar with said lugs.

16. In a device for removing a clinched staple having a bridge and bent legs; a support comprising a rear wall provided with forwardly projecting and spaced sides including vertically arseat at the lower part of said wall and spaced from said sides and including spaced and forwardly projecting lugs adapted to be inserted under said bridge and between said legs; an elevator displaced linearly relative to said support and comprising a channeled member including an upstanding boss and a staple lifting tongue substantially normal to said boss and removably disposed between said lugs and adapted to be inserted under said bridge and embodying wings extending laterally of said boss and slidably guided by said ribs, a plunger having spaced and outer sides closely straddling but slidably guided by said forwardly projecting ammi sides, fa pinion, la f'shaft .fjoiirnaied to said 'spaced and outer sides and carrying said pinion, arid spaced rack means lcarried by said piunger gand boss l'and in mesh with fsad :pinion ifor linearly raisingsaid :boss upon ilinear downwardfdisplacenent of said plunger 'relative fto-lsaid support whereby said tongue `Iii'ISfEaid bridge and said leglsfstraddle and arelifted along Land 'beyond the 'sides of-saidf'lugs. y

17. 'In a device for 'removing' a'clinched staple having a bidgeandbentlegsya suppdrtcompris'- ing a rear vertical wall provided with forwardly projecting and spaced vertical'sid'es, -afseat'at the lowerpart of said wall andfspa'cedfiromsaidfsides and including spaced and forwardly projecting horizontally disposed lugs adapted to be vinserted under said bridge and'betweenfsai'dlegs, anelevator vdisplacealole linearly :relative to said sup-'- port -and comprising 'a 'vertically 'arranged channeled-member including a staple Klifting forwardly extending tongue substantially normal to said boss and removably disposed between and lnormally-coplanar with said lugs and adapted to be inserted under saidibridge; a :hollow rectilinear shaped plunger having spaced fand `outer rsides closely straddling `but slidably. guided vbysaid forwardly -projeotingfsidea said support spaced ribs for slidably and linearly guiding said "elevator relative `to said support, a pinion, a shaftJ journaledto.saidspaced-andfoutersides; and carrying said pinion, and -s-paced means carried .by said plungerand boss and gin mesh with said pinion for linearlynfraising :said elevator upon linear downward displacement Vof l said plunger relative to Asaid support whereby fsaid tongue Avlifts `-said 35 bridge and saxd-lugs`straddle andareliited-along and beyond tbeI-sidesof `said lugs.

'8 18. The `device according :toclaim -17 wherein the rear wall of said support embodies avertically arrangedslot, land said plunger is provided with a pinsliiably guidedby'the walls-of said slot and the Yendso'f the `latter cooperating with said pin to limit linear displacement of the plunger.

19. The device according to claim 17 wherein the rackr'means of said boss is/on a forwardly disposed Wall-of `theflatter and-the rack .meansof Athe plunger :is .on an indented portion cf the Afront wall of theplunger.

20. The ldevice according to'claim 17 wherein a cap is :mounted andretained by the upper part of the plunger, and a helicoidal spring is interposed between the plungeriand cap for normally holding Vthe plungerielevated at which time said tongue is coplanar withsaid spaced lugs. y

, LOUIS voN CSEH.

Y 'REFERENCES CITED 'The following .references are .of record .in the iile of this patent:

UNITED STATES PATENTS