US1707519A

US1707519A - Closed-yoke riveter

Info

Publication number: US1707519A
Application number: US72703A
Authority: US
Inventors: John C Hanna
Original assignee: HANNA ENGINEERING WORKS
Current assignee: HANNA ENGINEERING WORKS
Priority date: 1925-12-02
Filing date: 1925-12-02
Publication date: 1929-04-02
Anticipated expiration: 1946-04-02

Description

"April 2, 1929. H NNA 1,707,519

CLOSED YOKE RIVETER Filed Dec. 2, 1925 5 Sheets-Sheet 1 April 2, 1929. Jj HAN-NA 1,707,519

CLOSED YOKE RIVE'I'ER Filed Dec. 2, 1925 3 Sheets-Sheet 2 60 15655 JO/m mm Fil'ed Dec. 2, 1925 s She'ets-Shet Patented Apr. 2, 1929.

UNITED STATES 1,707,519 PATENT OFFICE.

JOHN C. HANNA, F CEICAGO, ILLINOIS, ASSIGNOR TO HANNA ENGINEERING WORKS, OF CHICAGO, ILLINOIS,

A CORPORATION OF ILLINOIS.

GLOSED-YOKE RivErrER.

Application filed December 2, 1925. Serial No. 72,703.-

moved to facilitate the insertion and removal of the members being operated upon and to afford riveting action in either of two directions.

It is an object of the present invention to provide a riveter of this character in which the relation of the dies may be'varied to permit ready insertion or removal of work and to permit working upon the materialby a stroke in either direction and at any desired angle.

It is an additional object to provide a riveter of this character which is adapted for rapid and easy' adjustment and in which the movable die may be readily swung clear of the fixed die to facilitate handling of material being worked upon.

It is also an object to provide a construction in which the swinging of the die may be accomplished by power and in which the die when in riveting position is positively locked against displacement.

Other and further objects will appear as the description proceeds. v

I have illustrated a preferred embodiment of my invention in the accompanying drawings in which- Figure 1 is a vertical view, largely in section;

Figure 2 is a view of the-riveter as seen from the right of Figure 1;

Figure 3 is a plan View of the riveter, and Fi ure 4 is a fragmentary view showing the movable die swung clear and the fixed die rotated to the position opposite to that shown in Figure 1.

The riveter is rotatably supported upon the base 11 which may be secured to any suitable foundation by bolts passing through holes 12. The rotating carriage 13 rests upon balls 14 carried by the fixed base 11, and the hooks 15 secured to the base 11 by bolts 16 engage the flange 1 7 of the rotating carriage to prevent displacement.

The carriage 13 is provided with the two standards 18 and 19 from which the top cyl-. inder casting 20 is hung by

pivot pins

21 and 22. As clearly shown in the drawings these pivot pins ortrunnions rotate in ball hearings in the standards and are pinned to the casting 20. The pivot pin 22 is provided with the operating lever 23 to which is hingedly secured the lock handle 24. The lock handle 24 operates awire 25 secured to the locking pin 26. Pressing the lock handle 24 against the handle 23 serves to draw in the locking pin 26 against the spring 27 thus unlocking the are 28 and permitting the riveter to be swung about the pivot pins. As best shown in Figure'2, the are 28 is provided with a plurality of openings 29 to receive the locking pin 26 so that the riveter may be swung through a wide range of angular positions.

The castlng 20 has secured to its upper portion by

pms

30 and 31, the fixed die supportingmember 32.- The fixed die holder 33 is rotatably fitted in the member 32. The rear end 34 of the member 33 is fitted into the bearing member 35, which latter is secured against rotation in the member 32 by the stud 36. The

locking slide 37 is slidable axially of the member 33 by means of the wire 38, which draws the member 37 back against the spring 39. In the position shown in Figure 1, the locking slide 37 has its ends fitted in the locking grooves 40. When drawn back against the spring, the locking slide clears the edge of these grooves and-may be rotated with the fixed die carrier 33. r

The outer end of the die carrier 33 has keyed thereto a sprocket wlieel 41 which is connected by sprocket chain 42 to the sprocket wheel 43. The sprocket wheel 43- is carried on shaft 44 which is supportedfrom the casting 20. As shown in Figures 2 and 3'the other end of the shaft 44 is provided with the operating lever 45, having handle 46. The wire 7 38 has its other end connected to the pivoted release member 47 which when swung towards the handle 46 serves to draw back the locking slide 37 and permits rotation of the fixed die carrier 33 by means of the handle 46 and lever 45.

The piston 48 as shown in Figure 1 is movable vertically relative to the casting 20 and to the fixed die. This plunger 48 is provided with a die carrying portion 49 which is guided through a plate 50 secured to the casting 20 by bolts 51 as shown in Figure 3. The portion 49 carries a movable 'die member 52. The movable die carryingheadf 53 is pivotally connected to the plunger 48 by the pivot pin 54.. f The right hand side of the head 53 is connected by pin 55 to the short toggle link 56 and the latter is connectedby pin 57 to the long toggle link 58. The long toggle sition by supplying so th link 58 has a shoulder 59 adapted to engage a shoulder 60 upon the member 53 when the toggle is in a locked position as shown 1n Figure 1. The lower end of the link 58 1s pivoted upon pin 61 carried by the plunger 48. The power cylinder 62 is p1vot ally con nected at 63 to the plunger 48 and its piston rod 64 is pivotally connected at 65 to a lower extension 66 of the long toggle link 58 The long toggle link 58 at its upper portion 1s provided with a handle 67 for manual operation.

The dividing plate 68 and the lower cyhnder member 69 are secured to the cylinder casting 20 by bolts 70 as shown in Figure 2.

The lower portion of the plunger 48 carries the two

piston heads

71 and 72 operating 1n the upper and lower cylinders respectively. These

piston heads

71 and 72 are retained 1n place and in their relative position by the shoulder 7 3 on the piston, the sleeve 74 and the lower nut 7 5. Suitable packing 76 is provided at the upper end of the upper piston and double packing 77 is provided upon the divisional plate 68. The piston head 71 is provided upon opposite sides with the pack-' ing-78 and 7 9 and the piston 72 is provided wit-h

similar packing

80 and 81.

In the operation of the riveter the entire upper assembly may be rotated to any desired position upon the ball bearings 14 and the cyllnder and jaw assembly may then. be tllted by means of riveting operation into the desired plane. Riveting may be accomplished by the lower die 52 on the lungerby turning the fixed die holder 33 to ring the fixed die toward the movable die 52. The toggle connection between the jaw 53 and the plunger may be broken and the jaw 53 tilted away from the fixed jaw by power supplied to cylinder 62. For this riveting operation, the power stroke is had by supplying compressed air or similar fluid to the under sides of

pistons

71 and 72. The movable die is restored to its original popower to the opposite side of the pistons.

hen it is desired to rivet with the outer movable die holder'53 as shown in Figure 1, is jaw is swung to the position of the figure and the toggle looked as shown. The jaw may be swung back each time a piece of work is inserted or withdrawn from between the dies. The riveting operation is brought about by power applied by introducing fluid under th pressure above the

pistons

71 and 72 and the movable die restored to its outer position by power supplied to the lower sides of the pisone.

The entire operatin control of the riveter is located upon one si. e of the apparatus and the relation of the parts may be quickly and easily varied. The fixed jaw may be quickly turned from one to the other of its positions without removing work. from between the the handle 23, the plunger 26 befi ing properly released, to bring the axis of the fi jaws and a wide variety of riveting operatlons can be accomplished rapidly and easily.

I have shown one preferredembodiment of my invention by way of illustration only and it is to be understood that I contemplate such changes and modifications as come within the spirit and scope of the accompanying clalms.

I claim:

1. In a riveter, a fixed jaw, a movable aw, a plunger carrying the movable jaw, a pivoted connection between the plunger and jaw, and toggle means for locking the plunger and movable jaw in fixed relation.

2. In a riveter, a fixed jaw, a movable jaw, a plunger carrying the movable jaw, a pivoted connection between the plunger and jaw, links connecting the movable jaw and plunger, and abutting portions on the movable jaw and certain of the links whereby the movable jaw is maintained in position. 3. In a riveter, a fixed jaw, a movable jaw,

a plunger carrying the movable jaw, a pivoted" plunger and aw,

connection between the links connecting the movable jaw and plunger, abutting portions on the movable jaw and certain of the linkswhereby the movable jaw is maintained in position, and means carried by the plunger for moving the links.

In a riveter, a fixed jaw, a movable plunger carrying a pair of spaced die holdin members located upon opposite sides of the xed'jaw, and means adapted to rotate the xed jaw.

5. In a riverter, a fixed jaw, a movable plunger carrying a pair of spaced die holding members located upon opposite sides of the fixed jaw, means adapted to rotate the fixed jaw and double acting power means adapted to reciprocate the movable plunger.

6. In a riveter, a fixed jaw, a pair of movable jaws upon opposite sides of the fixed jaw, means to rotate the fixed jaw 180 to selectively bring it opposite either of the movable jaws, and locking means for retaining the fixed jaw in either of its operating positions.

7 In a riveter, a fixed member, a fixed jaw, supported from said fixed member, a plunger operating in said fixed member, a die carrying jaw on said plunger located between the fixed member and fixed jaw and adapted to be forced outwardly toward said fixed jaw, and a second die carrying jaw extending from the plunger and located on e fixed jaw and adapted to be drawn in toward said jaw.

8. In a riveter, a fixed member, a fixed jaw, supported from said fixed member, a plunger operating in said fixed member, a die carrying jaw on said plunger located between the fixed member and fixed jaw and adapted to be forced outwardly toward said fixed jaw, and a second die carrying jaw extending from the plunger and located on the oppo site side of the fixed jaw and adapted. to he the opposite side of drawn in toward said jaw, said second die carrying jaw being pivotally connected to the plunger.

9. In a riveter, a fixed member, a fixed jaw, supported from said fixed member, a plunger operating in said fixed member, a die carrying jaw on said plunger located between the fixed member and fixed jaw and adapted to be forced outwardly toward said fixed jaw, and a second die carrying jaw extending from the plunger and located on the opposite side of the fixed jaw and adapted to be drawn in to- Ward said jaw, said second, die carrying jaw being pivotally connected to the plunger, an toggle means connecting the second j aw and plunger for locking the jaw in operating position. a

10. In a riveter, a fixed base, a supporting member rotatable on said base, a double acting power cylinder assembly tiltably supported on said supporting member, and a fixed jaw and a pair of movable jaws carried by said cylinder assembly.

11. In a riveter, a fixed base, a supporting member rotatable on said base, a double acting power cylinder assembly tiltably supported on said supporting member, a fixed jaw and a pair of movable jaws-carried by said cylinder assembly, and means to bring the fixed jaw in operating relation to either of the movable jaws.

12. In a riveter, a

fixed base, a supporting member-rotatable on said base, a power cylin- I der assembly tiltably supported on said supd porting member and fixed and movable jawscarried by said cylinder assembly, the movable jaw extending beyond the fixed jaw and being provided with means to swing it away a from the fixed jaw. s

Signed at Chicago, I]linois, this 25th day of November, 1925. i

a JOHN C. HANNA.