US3003657A - Fastener-setting hand tool - Google Patents

Description

Oct. 10, 1961 G. SIEBOL ET AL 3,003,657

FASTENER-SETTING HAND TOOL Filed Oct. 17, 1960 5 Sheets-Sheet 1 INVENTORS 650265 5/5801. fOR/A E. R/PP) liTTOENEY G. SIEBOL ET AL 3,003,657

FASTENER-SETTING HAND TOOL 3 Sheets-Sheet 2 Oct. 10, 1961 Filed Oct. 17, 1960 BYOOR/A 6 g U 1 /r 7, Z J 1 3 1 V M 7 4 a w- Ti 6 fi nm a m AQ r 7 200 4 ,0 J; g 8 N M m MO 1 6 01a. fil Maw 7 u wa Oct. 10, 1961 s. SIEBOL ETAL 3,003,657

FASTENER-SETTING HAND TOOL Filed Oct. 1'7, 1960 3 Sheets-Sheet 3 INVENTORSI- 6EOA6E 5/5501.

Z0 DUE/AN PP) Y? ZZam/ United States Patent 3,003,657 FASTENER-SETIING HAND TOOL George Siebol and Dorian E. Rippy, Garden Grove,

Calii, assignors to Olympic Screw 8: Rivet Corporation, Downey, Califi, a corporation of California Filed Oct. 17, 1960, Ser. No. 62,984 12 Claims. (Cl. 218-42) This invention relates to a hand tool for setting blind fasteners of the type in which the shank of a headed pin is pulled to cause the head to enlarge the blind end of a sleeve around said pin, thereby clinching said sleeve on members being fastened together thereby.

An object of the present invention is to provide a hand tool that is conveniently operable by one hand inicontradistinction to hand tools for the same purpose that require the use of both hands to open to one operative position.

Another object of the invention is to provide a fastenersetting tool that can, with easy facility, be readied for setting blind fasteners of various sizes, thereby greatly increasing the range of use over hand fastener-setting tools of prior design.

A further object of the invention is to provide a tool of the character above referred to that enables quick and facile clearance therefrom of the portion of the shank that is torn or pulled away during a fastener-clinching operation.

This invention also has for its objects to provide such means that are positive in operation, convenient in use, easily installed in a working position and easily disconnected therefrom, economical of manufacture, relatively simple, and of general superiority and serviceability.

The invention also comprises novel details of construction and novel combinations and arrangements of parts, which will more fully appear in the course of the following description, and which is based on the accompanying drawings. However, said drawings merely show and the following description merely describes, one embodiment of the present invention, which is given by way of illustration or example only.

In the drawings, like reference characters designate similar parts in the several views.

FIG. 1 is a side elevational view of a hand fastenersetting tool according to the present invention.

FIG. 2 is a broken and fragmentary side viewof said tool, showing its position during interchange of the pingripping chuck thereof.

FIG. 3 is an enlarged sectional detail view of the tool head before a setting operation has begun.

FIG. 4 is a similar view showing the tool at an intermediate stage of its clinching or fastener-setting operation.

FIG. 5 is a cross-sectional view as taken on the line 5-5 of FIG. 4. 7

FIG. 6 is a longitudinal sectional view as taken on the line 6-6 of FIG. 4.

FIG. 7 is a view similar to FIGS. 3 and 4, showing the tool near the end of its clinching or fastener-setting operation.

FIG. 8 is a further enlarged perspective view of a pin chuck or gripper used in the tool.

FIGS. 9 and 10 are enlarged longitudinal sectional views of two forms of blind rivets or fasteners that may be clinched by the present tool, the same being exemplary of other forms or types.

The fastener-setting hand tool that is illustrated comprises, generally, a head 10 that is integrally provided with an elongated finger-engageable handle 11, an interchange able guide 12 for the severable or pull-through end of the pin P of a fastener to hold said fastener with its sleeve S extending forwardly from the tool head 10, a sliding chuck assembly 13 in said head for intermittently pulling ice on and elongating the fastener pin P until the same ruptures or pulls through the sleeve S, and a movable handle 14 pivotally connected to the head 10 and cooperating with the handle 1 1 for alternately retracting and projecting the chuck assembly 13 during a fastener-setting operation.

The blind fasteners that are illustrated in the several views are exemplary, but have many other forms. Such a fastener essentially comprises the pin P which has a head 15 at one end and has its other end provided with a multiplicity of grooves or other roughened gripping means 16. As in FIGS. 7 and 9, such a pin is ordinarily sufliciently ductile to rupture or pull apart at a weakened point 17 when the groove-provided end is pulled relative to the head 15. The fastener includes the sleeve S through which the pin P is passed with the head 15 of said pin engaged with one end of the tubular body 18 and a flange 19 on the opposite end of the body. Such a fastener may be used to clamp together or fasten two or more members 20 in which a hole 21 is provided for receiving the fastener, head end first, from the outer side of member 20. As in FIG. 10, instead of the pin rupturing under pull, the head 15 thereof is pulled through the sleeve S. In this form, the head 15 is made to be ductile and of a size substantially larger diametrally than the passage in sleeve S. When the gripping means 16 is pulled, the head first enlarges the blind end of the sleeve, as at S, and then attenuates and becomes reduced to the size of the passage in the sleeve and to pull through said passage.

The flange 1'9 limits the position of the fastener in the hole 21 and the headed end of the fastener extends into the blind area behind the members 20. With the flange 19 pressed against the outer side of the members 20, a strong pull on the grooved end 16 of the pin will cause the pin head 15 to spread or bulge the blind portion S of the sleeve S, as at S, thus clinching said sleeve so the same fastens together the members 2). Continued pull on the pin end 16 causes the same to be either ruptured at the neck 17 or pulled through the sleeve, leaving the clinched fastener in place. The present tool, by a simple hand operation, sets such a blind fastener. The neck 17 may be located at the outer end of the sleeve or, as in FIG. 7, adjacent the head.

The tool head 10 is shown as a casting in which is provided a longitudinal slideway 25 that is open at one end and at the other terminates in a wall 26. The slideway, at the sides, is defined by walls 27, a longitudinal groove 28 being formed in the inner face of each said side wall. Two through holes 29 are formed in said walls 27, as can best be seen in FIG. 2. Said holes 29 are provided for removable guide pins 30. A through bearing hole 31 is provided in the end of head 10 that is remote from end wall 26, the same being provided for a pivot pin 32 that spans between bearing faces 33 in the head walls 27. The wall 26, at its upper end, is provided with a threaded hole 34. A transverse opening or slot 35 intersects each groove 28 and opens on the upper edge of the head.

A stop pin 36 extends vertically across each groove 28, the same being press-fitted into the walls 27 between the slots 35 and the end wall 26 of the head. Said pins 36 flank the slideway 25.

The handle 11 extends downward from the head 10 and has finger-engageable undulations 37 in its forward face.

The guide 12 is threadedly engaged in the threaded hole 34 and has a through hole 38 for receiving a pin P. A complement of several such guides, each with a different size of hole, provides the present tool with means for selecting a guide for the particular size of fastener being handled. The outer flange 39 provides a means whereby the guide may be turned to apply or remove the same.

The chuck assembly 13 comprises, generally, a slide plate 40 disposed in the slideway 25, a pin chuck or gripper 41 carried by the plate 40, a spring 42 biasing the gripper 41 to pin-gripping position, and a cross pin 43 carried by the gripper and having ends that extend into the grooves 28 in operative engagement with the pins 36.

The slide plate 49 is rectangular, as shown, and is provided with slots 44 through which the guide pins 31 extend that limit the retracted position of the plate, as well as retaining the same in the slideway 25, and with an opening 45 through which extends a drive pin 46 carried by the handle 14. A slot 47 is provided in plate 40, the same extending from about the middle of the plate at a forward and upward angle to intersect a longitudinal bore 48 in the upper forward portion of the plate. A counterbore 49 extends through the rearward end of plate 49 from the end of the bore 48.

A pin chuck or gripper 41 comprises a metal piece that slidingly fits the slot 41, the same having an end provided with ratchet-type teeth 50 that are arranged to be parallel to the axis of the bore 48 and, therefore, to a pin end 16 residing in said bore. The spring 42 biases the gripper 41 in a direction to engage the teeth 50 with the grooves of a pin end 16 in the bore 48, as in FIGS. 4 and 7. As a consequence, retractive movement of the chuck assembly, as in FIG. 4, causes engagement of the teeth 50 with the grooves 16 of the fastener pin. Then, further retraction of the chuck assembly, as in FIG. 7, causes pull on said pin to cause, first, setting of the fastener and, then, either rupture of the grooved pin at 17 or a pull through of the pin head 15.

The pin 43 is so arranged relative to the stop pins 36 that, as shown in FIG. 3, the chuck piece 41 is retracted because of engagement of pins 43 by pins 41 during projected position of the slide plate. This is the position of the parts that enables the placing of a fastener in'the tool preparatory to introducing the fastener sleeve 18 into a hole 21 of members 20. The chuck being retracted, the grooved end 16 of the fastener pin may readily be inserted into the bore 48 of the slide plate.

As can be seen from FIG. 3, the cross pin 43 has the additional purpose of connecting the spring 42 and the chuck 41 to obviate accidental loss of said spring during assembly of the chuck in the slide plate.

The handle 14 is in the form of a lever that is fulcrumed on the pin 32. The same hasan elongated end 51, generally coextensive with the handle 37, and has in its rear face an indentation 52 for the engagement of the fleshy party of the palm at the base of the thumb. With the hand so engaged with the lever end 51 and the fingers gripping the handle 11 at the undulations 37, the handle 14 may be pulled, by contraction of the hand, against the bias of a return spring 53 between the handles, first to grip the fastener pin and then exert a pull thereon after the fastener has been placed in the hole 21. Said handle 14 has an upper, shorter end 54 which is bifurcated to straddle the plate 40 and which carries the drive pin 46. The handle 14 being a lever of the first class, the chuck assembly 13 is retracted during movement of handle end 51 to the dot-dash line position of FIG. 1, i.e., the intermediate position of the tool, as in FIG. 4, and further retracted, as in FIG. 7, to the clinching position of FIG. 7.

If during such operation of the tool, the fastener is only partly clinched or, if fully clinched, the pin end 16 has not been severed or pulled through the fastener sleeve, the grip on the tool may be eased to allow spring 53 to spread the handles and move the chuck assembly back to projected position from which a second operation of the tool causes an additional elongation of the pin P and subsequent disruption or pull-through of its grooved end 16 at the neck 17. It will be seen that the operation is one-handed at all times regardless how many pin-elongating and clinching operations are performed before the mentioned severance or pull-through.

After a fastener has been set, the severed end of the pin or the pulled pin will easily drop from the tool upon release of the handle 14 and consequent retraction of the chuck 41. Such end can fall out of the through bore in plate 40 from either end and, therefore, the operator need not take unneeded steps for such ridding of the tool of a severed pin end. The same will fall out whether the tool is tipped with its front end down or up, as desired.

Exchange of guide 12 may be easily accomplished as above explained. In order to change the chuck or gripper 41, for one that suits the fastener being handled, the pins 39 are withdrawn, thus enabling the slide 40 to be retracted a distance greater than is afforded by the slots 44. Now, the pin 43 is aligned with the slots 35 in the head. Therefore, the assembly 13 can be'swung up on its pivot 46, as shown in FIG. 2. It is a simple matter to exchange the chuck 41 for another since the same is clear of the body. Now, the assembly'13 is restored to its slide position in the head, the pins 30 are replaced, and the tool is ready for use.

While the foregoing has illustrated and described what is now contemplated to be the best mode of carrying out the invention, the construction is, of course, subject to modification without departing from the spirit and scope of the invention. Therefore, it is not desired to restrict the invention to the particular form of construction illustrated and described, but to cover all modifications that may fall within the scope of the appended claims.

Having thus described the invention, what is claimed and desired to be secured'by Letters Patent is:

l. A fastener-setting hand tool comprising a head having an integral elongated handle, a slideway in said head, a wall defining an end of the slideway, a guide carried by said wall for receiving the grooved end of the pin of a blind fastener, a chuck assembly movable along said slideway and having a longitudinal through bore into which said fastener pin end is received, a chuck slidingly carried by said assembly, a pivoted handle carried by the head and movable relative to the integral handle and connected to the chuck assembly to move the same between a projected position nearer the mentioned wall of the head and a retracted position, means on the head engaged with the chuck to retract the latter when the chuck assembly is in projected position, and a spring biasing the chuck to projected position gripping the pin end when the chuck assembly is retracted.

2. A fastener-setting tool according to claim 1 in which a pivotal connection is provided between the pivoted handle and the chuck assembly, and removable transverse pins carried by the head and extending through slots provided in said assembly, said assembly, upon removal of the pins being swingable out of its slideway, on its pivotal connection, to expose the chick and adapt the latter for removal for replacement by another chuck, according to the diametral size of the fastener pin.

3. A fastener-setting tool comprising a head having a slideway and provided with a fixed handle, a slideway in said head, a guide at one end of the slideway and carried by said head for receiving the grooved end of the pin of'a blind fastener, chuck means movable along said slideway and having a long'tudinal bore into which said fastener pin end is received, said chuck means including a movable chuck piece having a pin-gripping end directed toward said bore and a pin end therein, a pivoted handle carried by said head in operative association with the mentioned fixed handle and connected to the chuck means to move the latter means between a projected position nearer said guide and a retracted position, interengaging means on the chuck piece and the head to retract said chuck piece when the chuck means is in projected position, and means imposing a resilient bias on the chuck piece to project the same to grip the mentioned fastener pin end when the chuck means is retracted.

4. A fastener-setting tool according to claim 3 in which a pivotal connection is provided between the pivoted handle and the chuck means, and removable transverse pins carried by the head and extending through slots provided in said chuck means, said latter means, upon removal of the mentioned pins, being swingable on its pivotal connection, out of its slideway, to expose the chuck piece and adapt the same for removal md replacement by another chuck, according to the diametrfl size of the fastener pin.

5. In a fastener-setting hand tool, a head having a slideway, a slide plate in the slideway having a through longitudinal bore for receiving the groove-provided end of the pic of a blind fastener, means to move said plate along the slideway between a projected position and a retracted position, said plate having a slot therein, a chuck piece in said slot having an end directed toward a pin end on the bore of the plate, means carried by the head engaged with the chuck piece to retract the same to non-gripping relation with such pin while said plate is projected, and a spring biasing the chuck piece to projected position gripping such pin end when the slide is being moved to retracted position.

6. In a hand tool according to claim 5, the slot in the plate being directed at an upward angle toward the bore in said plate, and the chuck piece having tooth projections on the end thereof that engages the fastener pin to enter the grooves of said end.

'7. In a hand tool according to claim 5, the chuck iece being provided with a transverse pin projecting beyond the sides thereof, and the mentioned head-carried means projecting in the path of projecting movement of the chuck piece to engage said ends of the transverse pin.

8. in a hand tool according to claim 5, the slot in the plate being ected at an upward angle toward the bore in said plate, and the chuck piece having tooth projections on the end thereof that engages the fastener pin to enter the grooves of said end, the slot in the plate intersecting the bore therein.

9. In a fastener-setting tool, a head having a slide-way a slide member in the slideway having a longitudinal bore for receiving the groove-provided end of the pin of a blind fastener, means to move said member along the slideway between a projected position and a retracted position, a movable chuck piece carried by said member with an end thereof directed toward the pin end in the bore of the member, means carried by the head engaged with the chuck pi ce to retract the same to non-gripping relation with such pin while the member is projected, and means resiliently biasing the chuck piece to projected posit-ion gripping such pin when the slide is being moved to retracted position.

10. In a tool according to claim 9, the chuck piece being disposed at an angle to the bore in the slide memher, and means on the end of the chuck piece that is directed toward the pin end in the bore to engage said pin end and enter the grooves therein during the mentioned movement of the member to retracted position.

ll. In a fastener-setting hand tool, a head having a longitudinal slideway open along one longitudinal edge, a chuck plate slidable along said sli eway and having -a slot formed therethrough, a chuck piece in said slot, removable pins extending across said slideway through slotted openings in the latter, a lever to move the chuck plate along the slidevay, and a pivoted connection between said lever and the chuck plate whereby, after removal of the cross pins, the plate is adapted to be swung out of the slideway on its pivoted connection to expose the chuck piece for lateral removal of the latter from the plate and replacement by another chuck piece.

12. In a hand tool according to claim ll, the slideway having longitudinal side grooves, a cross pin in the chuck piece having ends extending into said grooves, and an intersecting slot entering each said groove from the open edge of the slideway, said pin ends, upon removal of the cross pins, being generally aligned with said intersecting slots and movable outwardly through said slots during pivotal outward swinging of the chuck plate.

No references cited.

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