US2660725A

US2660725A - Stapling device

Info

Publication number: US2660725A
Application number: US332232A
Authority: US
Inventors: Frank R Curtiss
Original assignee: Individual
Current assignee: Individual
Priority date: 1953-01-21
Filing date: 1953-01-21
Publication date: 1953-12-01
Anticipated expiration: 1970-12-01

Description

F. R. CURTISS STAPLING DEVICE ec. l, 1953 Filed Jan. 21, 1955 Patented Dec. 1, 1953 UNITED STATES PATENT OFFICE STAPLING DEVICE Frank R. Curtiss, New Haven, Conn.

Application January 21, 1953, Serial No. 332,232

8 Claims.

This invention relates to stapling devices and more particularly to means for facilitating the insertion of staples into the staple magazine.

Heretofore in stapling devices, a staple magazine was provided and a staple pusher was inserted in the magazine to urge the staples in the magazine into stapling position. Many eiforts have been made to provide a means by which the staples can be readily inserted as, for example, by providing the pusher with a fingerpiece whereby it can be removed from the rear open end of the magazine, but this usually requires substantial handling of the pusher in moving it out of and back into the magazine. Also pushers of this type are usually urged forward by a flat, wound spring which when flexed to move the pusher out of the magazine tends to fatigue and break. The present invention overcomes these difficulties by providing a structure which is simple to operate, may be quickly actuated, and which leaves the operators hands free to insert the sticks of staples into the magazine.

In carrying out the present invention a member, which may also form the cover for the magazine, is pivoted adjacent the forward end of the arm having the magazine for movement to,- Ward and away from the arm. The member is so constructed that it carries the staple pusher and the means urging the staple pusher. for movement therewith and is provided with means for latching the staple pusher in a retracted position and the member in covering position,

=Whi0h latter means may be released to permit the member andpusher to be moved away to- .gether from the magazine to aiford easy access to the rear open end of the magazine for the insertion of the staples.

A feature of the inventionresides in the fact that the staple pushing means, being connected to the member or cover whichis swung away to afford access to the open rear end of the magazine, is automatically removed from the magazine thus freeing the operator's hands from the the fact that the means for urging the pusher is mounted on the member for movement there with so that there is no occasion to flex the same and cause fatigue.

Another feature of the invention resides in the simple, yet effective construction of the parts and their operation. A

Other features and advantages of the invention will be apparent from the specification and claims when considered in connection with the drawings in which:

Figure 1 shows a side View partly in section of the device of the present invention.

Fig. 2 is a top view of the device.

Fig. 3 is a sectional view taken along lines 3-3 of Fig. 1.

Fig. 4 is a sectional view of the arm taken along lines 44 of Fig. 1.

The stapling device of the present inventlon may be used for many purposes and in many organizations but is particularly adapted for a construction in which the stapling device is suspended from a support. a

As shown in the drawings-the device comprisesa base l0 having keyholes ll whereby it may be suspended on a vertical supporting surface (not shown). Pivotally connected to the rear'end of the base is an arm I2 to extend downwardly over the base and urged by spring l3 into the .raised position shown in Fig. 1 in which it is stopped by stop member M." The arm, as shown in Figs. 1 and 4, has a staple magazineformed therein by a U-shaped passage I5 extending therethrough and providing-a staple supporting core IE to receive and support sticks of inverted U-shaped staples S.. The magazine is open at the'rear end for the insertion of staples and terminates at its forward end adjacent a staple driving means I! carried by a staple driving head l8 formed at the forward end of the arm. If desired, staple'guiding members I9, Fig. 3., may be provided on the arm to overlie the top edges of the staples and prevent the stick of staples from buckling as they are being fed into staple driving position.

Disposed in the staple passage to the rear of the stick of staples is a U-shaped staple pusher 20 which, according to the present invention, is

.carried by a member 2| overlying the arm. This member may take many forms but in the present form of the invention it extends over the arm and in addition forms a hollow cover therefor. A feature of the present invention resides in the pivoting of the member adjacent the forward end of the arm for movement to and from the position overlying the arm as shown in Fig. 1. While the member may be pivoted in any manner, it is herein illustrated as being mounted on the stapling head by an offset pivot means 22 connected to an extension am of the cover.

In mounting the pusher on the cover for movement therewith, it is at present preferred to provide an elongate rod 23 located within the cover passing through an aperture 20a in a manipulating finger 2012 connected to and projecting upwardly from the staple pusher. The finger projects upwardly above the cover through a longitudinal slot 2 lb in the cover to enable the staple pusher to move longitudinally therealqng and along the magazine.

The pusher is urged forwardly to feed thestaples in the magazine to staple driving position. by urging means carried by and movable with the cover. In the illustrated form of the inven: tion this comprises a coil spring 24 surrounding the rod b ck of the pus so s n l u g e us e embe for ard y d p sit the staples in staple driving position wherein the staple driving means forces the staple through t work o hown) and i t a ent with the s a le t rn n mean med in th ba since the spring urging the; pusher moves with the cover, it; is not flexed during each replenishment of the magazine and hence does, not become fatigued and brolgen.

In accordance with the present invention a pivoted latch 25 is mounted on the cover adjacent the rear end, of the arm and has a portion 25a normally urged by spring 26 into a position to overlie the elongate slot. When the pusher is moved to retracted position by the manipulating finger, the finger will snap past the portion of the latch and upon being released will engage the latch and the, pusher will be held retracted position. Spring 24. will maintain the finger pressed, against the latch and an ear 250. on the latch will prevent movement of the latch under urging of the spring 24.

It, will be. noted in Fig. 3 that the. staple guiding members l9 for the. magazine terminate inward- 1y from the rear of the magazine so. that when the staple pusher is held by thev latch in .retracted position it will be. located to the rear of the guides and free of the guides so that when the member or cover 2| is moved about its pivot the pushercan readily move with the member out. of the magazine.

Normally the cover is held in overlying relation with, the arm and against movement about the ,pivot byreleasablelatch means. In the illustrated form of the invention the latch means comprises a depending latch member 21 pivotally carried by the cover and having a projecting portion 231d adapted to engage the undersurface. of the, arm to hold the cover in position- While any suitable spring may be used to urge the latch into cover holding position, it is at present preferred to, utilize spring 26 which is connected to latch 25v for this purpose by connecting the opposite end to latch 21 as shown in Fig. 1.

When it is desired to replenish the supply of staples, it is merely necessary to engage the manipulating finger band move. the staple pusher to latched retracted position. Latch member 21 is then actuated to. move portion 21a out of engagement with the arm and releasing the cover with the retracted pusher latched in retracted position for movement away from the arm, thus exposing the rear staple receiving opening in the magazine to readily receive staples therein. The cover can pivot completely about its pivot so that it will hang in a depending position if desired, or any suitable stop means, not shown, may be interposed in the path of movement of the member to stop it with the desired opemng.

Since the operator does not have to handle the staple pusher during the replenishing operation and the member or cover carrying the pusher is moved away from the arm so that ample room is afforded for the insertion of the staples, the replenishment of the staples in the magazine may be accomplished very quickly and easily.

- After a supply of staples has been inserted in a magazine, it is merely necessary to move the cover back to latched position overlying the arm. In doing so the pusher is automatically positioned in the staple receiving passage so that upon release of the pusher latch the coil spring automatically moves the pusher into engagement with the staples to urge them into staple feeding position.

In order to facilitate the movement of the cover back into overlying relation with the arm, guide means 28 are provided which extend down over the sides of the arm and guide the cover into proper relation therewith, as it is swung about its pivot.

Thus it will be seen that With the device of the present invention, which can be formed of any suitable material, replenishment of the staple supplies is greatly facilitated.

Variations and modifications may be made within the scope of the claims and portions of the improvements, may be used without others.

I claim:

1. In a stapling device having an arm provided with a rear opening staple magazine to receive and hold a supply of staples therein and a staple driving means adjacent the forward end, and a staple pusher positioned in said magazine and urged forwardly therein to feed staples to said staple driving means; the improvement wherein a rearwardly extending member is pivotally carried by the arm and is movable about said pivot to and from a position overlying the arm; means on the pusher for moving the pusher to retracted position; means on the member for engaging and releasably holding the pusher in retracted position for movement with said member and. out of the, magazine; and means releasably holding the member in position overlying the arm, said means being released to permit movement of the member and retracted pusher about the pivotaway from the arm to expose the rear staple receiving opening in the magazine to readily receive staples therein.

2. In a stapling device having an arm provided with a. rear opening staple magazine to receive and hold a supply of staples therein and a staple driving means adjacent the forward end; the improvement wherein a member is pivotally carried by the arm and is movable'about said pivot to and from a position overlying the arm; a staple feeding pusher mounted on the member for movementtherewith and for longitudinal movement therealong, said pusher being adapted to be positioned inv the magazine to engage the supply of staples therein; means. mounted on the member forurging the Pusher forwardly to feed thestaples to the staple driving means; means on the pusher for moving the pusher to retracted position; means on the member for engaging and releasably holding the pusher in retracted position; and means releasably holding the member in position overlying the arm, said means being released to permit movement of the member and retracted pusher away from the arm to expose the rear staple receiving opening in the magazine to readily receive staples therein.

3. In a stapling device having an arm provided with a rear opening staple magazine to receive and hold a supply of staples therein and a staple driving means adjacent the forward end, said magazine having guiding means overlying the staples and terminating inwardly from the rear end of the arm; the improvement wherein a member is pivotally carried by the arm and is movable about said pivot to and from a position overlying the arm; a staple feeding pusher mounted on the member for movement therewith and for longitudinal movement therealong, said pusher being adapted to be positioned in the magazine to engage the supply of staples therein; means mounted on the member for urging the pusher forwardly to feed the staples to the staple driving means; means on the pusher for moving the pusher to retracted position; means on the member for engaging and releasably holding the pusher in retracted position to the rear of the end of and free from said guiding means; and means releasably holding the member in position overlying the arm, said means being released to permit movement of the member and retracted pusher away from the arm to expose the rear staple receiving opening in the magazine to readily receive staples therein.

4. In a stapling device having an arm provided with a rear opening staple magazine to receive and hold staples therein and a staple driving head at the forward end provided with staple driving means, and a pusher positioned in the magazine to engage the staples and feed them to a position to be driven by the staple driving means; the improvement wherein a member is pivotally mounted adjacent the forward end of said arm and is movable about said pivot to and from a position overlying the arm; means mounting the pusher on the member for movement therewith and for longitudinal movement therealong; a coil spring carried by the member for movement therewith and engaging and urging the pusher forwardly to feed the staples in the magazine; means on the pusher for moving the pusher to retracted position; a spring pressed latch on the member for engaging and releasably holding the pusher in retracted position against the urging of the coil spring; and a spring pressed latch on the member engaging the arm and holding the member in position overlying the arm and upon being released enabling the member and latched pusher to be moved away from the arm to expose the rear staple receiving opening in the magazine to readily receive staples therein.

5. In a stapling device having an arm provided with a rear opening staple magazine to receive and hold staples therein and a staple driving head at the forward end provided with staple driving means, and a pusher positioned in the magazine to engage the staples and feed them to a position to be driven by the staple driving means; the improvement wherein a cover is pivotally mounted adjacent the forward end of said arm and is movable about said pivot to and from a position overlying the arm; means mounting the pusher on the cover for movement therewith and for longitudinal movement therealong; means mounted on the cover for urging the push er forwardly to feed the staples in the magazine; means on the pusher for moving the pusher to retracted position; means on the cover for engaging and releasably holding the pusher in retracted position; and means releasably holding the cover in position overlying the arm, said means being released to permit movement of the member and retracted pusher away from the arm to expose the rear staple receiving opening in the magazine to readily receive staples therein.

6. In astapling device having an arm provided with a rear opening staple magazine to receive and hold staples therein and a staple driving head at the forward end provided with staple driving means, and a pusher positioned in the magazine to engage the staples and feed them to a position to be driven by the staple driving means; the improvement wherein a cover is pivotally mounted adjacent the forward end of said arm and is movable about said pivot to and from a position overlying the arm; an elongate rod within the cover for mounting the pusher on the cover for movement therewith and for longitudinal movement therealong; a coil spring surrounding said rod for engaging and urging the pusher forwardly to feed the staples in the magazine; means on the pusher for moving the pusher to retracted position; means on the cover for engaging and releasably holding the pusher in retracted position against the urging of said coil r spring; and means releasably holding the cover in position overlying the arm, said means being released to permit movement of the member and retracted pusher away from the arm to expose the rear staple receiving opening in the magazine to readily receive staples therein.

'7. In a stapling device having an arm provided with a rear opening stapling magazine to receive and hold staples therein and a staple driving head at the forward end provided with staple driving means, and a pusher positioned in the magazine to engage the staples and feed them to a position to be driven by the staple driving means, said pusher having a manipulating finger; the improvement wherein a cover is pivotally mounted adjacent the forward end of said arm and is movable about said pivot to and from a position overlying the arm; means mounting the pusher on the cover for movement therewith and for longitudinal movement therealong, said cover having a longitudinal slot therein through which the manipulating finger projects for movement of the pusher to retracted position; means mounted on the cover for urging the pusher forwardly to feed the staples in the magazine; latch means on the cover for engaging the manipulating finger and releasably holding the pusher in retracted position; and means releasably holding the cover in position overlying the arm and upon being released enabling the cover and pusher to be moved away from the arm to expose the rear staple receiving opening in the magazine to readily receive staples therein.

8. In a stapling device having a base, an arm pivotally mounted on the base adjacent the rear end and having a rear opening staple magazine provided with staple guides to receive and hold staples therein and a staple driving head at the forward end provided with staple driving means, and a pusher positioned in the magazine to move under said guides to engage the staples and feed memes them to a position to be driven by the staple driving means; the improvement wherein a, cover is pivoted to the staple driving heed and extends rearwa-rcily therefrom and is movable about said pivot to and from a, position overlying the arm; means mounting the pusher on the cover for movement therewith and for longitudinal movement therealong, the guides on said magazine terminating inwardly of the rear end of the mags.- zine for releasing the pusher from the magazine for movement with the cover; means mounted on the cover for urging the pusher forwardly to feed the staples; means on the pusher for moving the pusher to retracted position; means on the cover for engaging and latching the pusher in a retracted position; and ineans releasably latching the cover in bositioii '69 living the arm, said means being released to ii'i'ifl it movement of the member and retre'ctea piish'i' 5W3}? froiii the arm to expose the rear stem" i'eiving obening in the magazine to reeany ree'eive sta'ples thef- V R. CURTISS. References oi't'ea in the file of this pate t fifii'iifi TAiES fiAiEN'i Name Date Vail Mai. 8, 1949