US2555903A

US2555903A - Clip-applying tool

Info

Publication number: US2555903A
Application number: US43270A
Authority: US
Inventors: Emmett H Schroeder
Original assignee: Individual
Current assignee: Individual
Priority date: 1948-08-09
Filing date: 1948-08-09
Publication date: 1951-06-05
Anticipated expiration: 1968-06-05

Description

June 5, 1951 SCHRQEDER 2,555,903

CLIP-APPLYING TOOL Filed Aug. 9, 1948 INVENTOR.

nrroz/v Patented June 5, 1951 UNITED STATES PATENT OFFICE This invention relates to hand tools for auto- :matically applying conventional clips of the kind formed from bendable metallic material, such as .steel wire, and initially having a substantially .U-shape and being bendable to a closed looped .condition when applied.

The most important object of this invention is to provide a clip-applying tool having a pair of jaws movable toward and away from each other through the medium of manually operable grips .or handles having connection with the jaws and, also, provided with reciprocable structure operable by movement of the jaws for automatically moving the clip to be applied to a position between the jaws where the clip can .be squeezed together in a loop-forming condition.

Another important object of this invention is the provision of a clip-applying tool as above mentioned, wherein the reciprocable structure constitutes a plate-like plunger adapted to move .to and from a position between the jaws as the latter are shifted and to carry therewith a clip to be applied for positioning between said jaws.

A further object of this invention is to provide a clip-applying tool of the aforementioned character having a resilient means in the form of slotted leaf springs positioned on proximal-faces of the jaws for holding the clip in a position for closing by the jaws after the plunger shifts to a position from between the jaws.

Other objects of this invention includethe way in which novel linkage is disposed between the reciprocable plunger and one of the jaws for actuating .the former; the way in which a plurality of clips are fed singly to a position within the pathof travel of the plunger when the latter is at one end of its path of travel .away from the jaws; the manner in which a passageway is formed to present a guide for the clips as the same move from the fed position to the position between the jaws; and the manner in which the plunger per se is .formed at one end thereof to conform to the contour of the clip as initially manufactured.

Other objects will be made clear or .becomeapparent as the following specification progresses, reference being had to the accompanying drawing, wherein:

"Fig.1 is a top plan view of :a clip-applying tool made in accordance with the present invention.

Fig. 2isan end elevational view thereof, parts being broken away and in section to reveal details of construction.

Fig. .3 is an inverted plan view with the casecovering plate entirely removed.

vFig. 4 is a perspective stretched-out view of the reciprocable plunger and its guide plate, showing the same entirely removed from the tool .it-

self; and,

Fig. 5 isa perspective view of one of the resillent holding means for the clips, showing such holding means entirely removed from its jaw.

As might well be appreciated, the need for a simple, sturdy and easily-operated device .for applying relatively heavy clips where needed has "become apparent. It is appreciated that many manually operable devices have heretofore been made for affixing clips, particularly those'for fastening together loose leaves of paper, but heavier clips used for tagging merchandise, joining together articles of relatively'strong and heavy-material and the like, are ordinarily affixed by hand or through use of tools not capable of feeding the "clips automatically.

The tool shown in the drawing includes an elongated hollow body broadly designated by the numeral 10, having a handle 12 extending .laterally from one edge thereof and preferably tintegral withbody H). A second handle .01 grip is .mounted for movement toward and awayfrom :grip 12 as illustrated by a dotted line in Fig.

:3 of the drawing through the medium of "a pivot pin H6. The grip I4 extends throughan opening 18 formed in said. edge of body 10 .having grip 12 extending therefrom and projects through .body .I ll'into a slot'20 formed on the opposite edge of body [0.

As shown in Fig. .2 of thedrawing, the'pivot pin 16 is entirely enclosed within the body J0 and is threaded into one wall thereof. One endiof the grip [4 extends laterally, presenting a ,j aw -.-22 disposed in opposed relationship to a jaw24-extending laterally from one end of body 1-0. .Said .end of body 10 is open and a guide plate 26 mounted within body In extends outwardly therefrom in the same direction as jaws 22 and .24.

Guide plate 26 has anopening 28 intermediate its ends for receiving -the,pivot pin 16 which holds plate 26 in place within body 10. Plate 26 is, also, provided with an elongatedslot 30* :extending inwardly from one end thereof, said .slot 30 being entirely disposed within-body -.lll and providing clearance for a laterally-projectingstub pin 32 formed adjacentone end of a reciproca- .ble plunger 34. Plunger 34 slides upon one face of guide plate 26and has an elongated :slot 35 disposed longitudinally therein .for clearing the pivot :pin :Hias plunger 34 reciprocates.

.As-shown in Fig. .3 of the draw ing, the hollow portion of body I0 extends a distance into the a follower 60. body it! through the medium of screws or the grip 12 for pivotally receiving an elongated link 38. This said one end of link 38 is pivotally joined as at 46 directly to the grip l2 and has an elongated cam slot 42 formed adjacent its opposite end for receiving the stub pin 32 that projects through slot 36 of plate 26. A short link 44 pivotally interconnects link 38 and grip [4 as at 46 and 48, respectively.

A substantially L-shaped leaf spring 46 within the body It] is looped around the end of link 38 adjacent pivot pin 46 and bearing against the gripl l for yieldably holding the same separated from the grip l2 and, consequently, for yieldably holding the

jaws

22 and 24 separated. A flat plate 52, removably mounted upon body In in any suitable manner, entirely encloses spring 5|],

links

38 and 44, a portion of the grip l2 and a portion of plate 26, as Well as plunger 34.

One face of the body I6 opposite to the plate 62 carries a housing 51% for an elongated spring 56 that is coiled about an axis 58 and extends outwardly from housing 54 for connection with Housing 54 is joined directly to like 62 and has an elongated rod 64 extending laterally, outwardly and at an angle from said one face of body l6. This rod 64 is peculiarly contoured in cross section to slidably receive a plurality of clips 66.

As clearly illustrated in Figs. 1 and 3 of the drawing, these clips 66 are substantially U- shaped and, more specifically, are circular and 'are provided with sharpened free ends.

These clips 66 are threaded upon the rod 64 as is the follower 66, the latter serving to yieldably hold clips 66 toward the innermost end of rod 64 by means of the leaf spring 56.

Body H) has an opening 66 formed in that 'wall thereof opposite to plate 62, communicating with the clips 66 on rod 64, said clips being fed by action of spring 56 into the body it and in "front of one end of the plunger 34 when the latter is at one end of its path of travel within body iii. 'This end of the path of travel of plunger 34 is illustrated by dotted lines in Fig. 3

' the contour of clips 66.

' The proximal faces of each of the

jaws

22 and 24 are provided with a resilient holding member These holding members 12 are of identical character and are joined by screws or the like 14 directly to the

corresponding jaw

22 or 24 and are arched as at 16 adjacent the free end thereof. Each of these members 12 is provided with an elongated slot 18 for receiving the clips 66 in the manner illustrated in Figs. 1 and 3 of the drawing.

When mounted upon the

jaws

22 and 24, members 12 curve inwardly and, since the same are resilient, they readily straighten when

jaws

22 and 24 are brought together for bending clip 66 into a substantially closed loop.

In operation, clips 66 are at all times held at one end of their path of travel on rod 64 within opening 68 by means of the spring 56. When the grips l2 and M are separated, as shown by full lines in Fig. 3 and, also, as illustrated in Fig. l, the reciprocable plunger'd l is disposed between the

jaws

22 and 24 because of the peculiar shape and disposition of

links

38 and 44.

When the grips l2 and R4 are manually moved together by application of a squeeze action thereto, the plunger 34 slides inwardly to one end of its path of travel, where the notched end 10 thereof clears the next clip 66 to be fed through opening 68, whereby said clip 66 moves into the body It in front of plunger 34. When the grips I2 and I4 are released for separation with a consequent separation of

jaws

22 and 24, the plunger 34 will shift to the opposite end of its path of travel between

jaws

22 and 24, carrying therewith a single clip for positioning between the members I2. Such clip will automatically be fed into the slots 18and remain therein after plunger 34 returns into the body for receiving another clip. 7

and 24 moving together. The clips 66 will readily slip from the slots l8 after the same have been formed into a loop.

Manifestly, the supply of clips 66 may beeasily replenished on rod 64 by slipping the follower 60 therefrom as spring 56 is pulled outwardly from within housing 54. Clips 66 in their expanded condition have a form as illustrated in Figs. 1 and 3. The form of the expanded clipiifi is U- shaped with the legs 66a diverging from a relatively narrow bight 66-12 that forms the zone of flexure when the legs 66-a are moved together by force exerted thereon through the movement of

jaws

22 and 24.

The free ends of legs 66-a have sharpened, inturned spurs 66c that abut or overlap when a complete loop is formed by the tool. These spurs 66c are substantially perpendicular to legs 66a when the clip 66 is in an open condition, and

jaws

22 and 24 exert pressure upon clip 66 at the zone of juncture between legs (ES-a and spurs 66c.

Clips 66 are usually secured together by lacquer, glue or other frangible substance that will allow the clips to be fed from the stick thereof by the tool as it is in operation. The clip stick has the clips 66 thereof disposed at an angle to the longitudinal axis of the stick. The clips are parallel to the outward path of travel of the clip being fed as grip I4 is moved in one direction.

Advantages arising from disposing rod 64 at an "angle are obvious to those skilled in the art, and

it will be further observed that manipulation is facilitated by such arrangement. Y

It can now be appreciated that a strong, sturdy and efiicient clip-applying tool has been produced that is not, likely to get out of order andthat requires yery little operator attention or repair.

It is desired, therefore, to be limited onlyby the spirit of this invention and the scope of the appended claim.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

A clip applying tool comprising a body having a jaw and a handle rigid thereto; a second handle pivotally secured to the body and movable toward and away from said body handle; a second jaw rigid to the second handle and movable to ward and away from said body jaw as said sec- 0nd handle is moved toward and away from the body handle respectively; a magazine for clips mounted on the body; and mechanism carried by the body and operably connected with said second handle for feeding clips singly from the magazine to a position between said jaws as said second handle is moved away from said body handle, said mechanism including a'member reciprocable in a rectilinear path to and from a position between the jaws, there being an element pivotally interconnecting said bodyand said member for recip rocating the latter, and a link pivotally joining said element and said second handle.

EMMETT I-I. SCHROEDER,

REFERENCES CITED The following references are of record in the file of this patent:

Number 6 UNITED STATES PATENTS Name Date Holland Dec. 26, 1901 Gibney Oct. 14, 1919 Sommer Apr. 17, 1923 Browers Mar. 1, 1932 Sorenson July 16, 1935 Curtiss Sept. 26, 1939 Maynard Apr. 2, 1940 Sorenson Nov 26, 1940 Sorenson Get. 27, 1942