US1152971A - Riveting device. - Google Patents

Description

' T. REIS.

RIVETING DEVICE.

APPLICATION FILED JUNE 5.1914.

1 152,971 Patented Sept. 7, 1915.

COLUMBIA PLANOURAPH COqWA SHINGTON, D. c.

THEODOR REIS, OF CINCINNATI, OHIO.

RIVETING DEVICE.

v To all whom it may concern:

Be it known that I, THEoDonRErs, residing at Cincinnati, Hamilton county, State of Ohio, have invented a certain new and useful RivetingDevice, of which the following is a clear, full, and exact description, attention being called to thedrawing, which accompanies this application and forms a part thereof.

This invention concerns a device to be used in connection with riveting sheet metal.

-The particular" functions which this device is intended to'perform consistof'posr tioning the rivet; of forcing itthrough the metal and of holding 'a tool, a so called. set, in proper position for forming the head, this being done-by means of a hammer.

, The invention consists of the construction of such a device-as hereinafter described and claimed and as illustrated inrthe accompanying drawing, 111-Wl'1lCl1 Figure-1. shows the device in side elevation'with parts in normal position. that is. at rest. Fig. 2. is a top' view of the same. Fig. 3. is a horizontal section of it on line 3-3 of Fig. 1. Fig. 4. shows the rear end of it; Fig. 5. onenlarged scale shows portions of Fig. 1 with certain operating'parts in alternate positions. Figs. 6 and 7 in similar views show other operating parts in their respective alternate positions.

Letter A indicates a bench or other suitable support upon'which the device is mounted. Y B indicates the frame of the device providedjwith flanges-71 for its attachment.

Numeral 7 indicates the anvil upon which the work is supported and riveted. This anvil may preferably form a part of the frame as shown. Itis provided with a pocket 8 which atithe beginning of anop'eration contains a rivet 9. Apunch or plunger 10is; contained infthe lower part of this pocket and adapted to vertically traverse the same so as to expel the rivetcontained therein. 1

. -11 indicatesa counter-sunk die supported in axial alinement above punch 10 and-ca pable of movingtowardand from the mouth ofpocket 8, being guided accordinglv in an overhanging part of the frame which-1 s I Specification of Letters Batent. I Patentedfiept. 7', 1915. Application filed. June 5, 1914. Serial No. 843,293.

13 is a tubular guide for the tool whereby the rivet head is formed, this tool, also called set, being indicated by numeral 14. This set is snugly contained in guide 13 with-a sliding fit, anenlargement or. head 15 being, provided at its upper end which prevents it from droppingout of the. guide. This latter is fitted to arm 12 of the frame so as to be capable of a vertical movement withrespect to anvil 7.

1616 indicates two pieces of sheet-metal tobe riveted to each other. r

. In using thisdevice plunger 10 and die 11 are causedto act first for the purpose of forcing a rivet: through the superposed pieces of metal and for seating it therein as shown in Fig.- 5, preparatory to being riveted- These pieces of metal rest at that time above rivet pocket 8. which latter contains a rivet in inverted, position, that is, shank up.

Themetal with the inserted rivet is now moved so that this latteris below set 14 as shown-in Fig. .6, after which the rivet is set.

' that is its headis being formed by means of lever 17 pivotally supported at.18. Punch 10 is moved by a lever 19 pivotally supported at 21.- A spring 20 acts at the ends of these levers in a'mannerto hold the working parts connected therewith in normal, that is, inoperative positions. These levers are operated by a cam C mountedupon a shaft 22v supported in the frame. The cam; is actuated, as shown in dotted lines, by an arm 23 mounted upon shaft 2'2. A manipulating lever 24, preferably in form of a treadle serves for the purpose, it being connected to arm 23 by means of a link The action on this. lever is against a spring 26 which holds the parts in normal position. Cam C is so shaped and positioned that by meansof its part 27, it acts upon lever 17 first,- the object being to move die 11 into forces the rivet through the metal.

position upon the sheet metal so as to hold the same against the action of punch 10 before this latter starts to act.

Action upon lever 2 L being continued, lever 19 will be actuated in due time so as to move punch 10 against the rivet, this being by the part 28 of the cam. No further action is transmitted at that time by the cam to lever 17, the latter remaining in position for holding the die in place while the punch Lever 24: is released now and permits spring 26 to restore it and cam C to their respective normal positions. The metal with the inserted rivet is now shifted so that the upturned shank of the rivet is below the lower end of set 14, this latter being slowly lowered thus serving as a pointer to enable the operator to properly position the rivet. The position of the parts which results from this manipulation is shown in Fig. 6 and as to set 11 is due to action on a lever 29 operatively connected to guide 13 which carries said set.

, This action is obtained by means of a ma- The position resulting from this manipulation is illustrated in Fig. 7 head 15 of the set being clear above guide 13. The rivet is now set, that is the additional or finishing head is formed by means of hammer-blows delivered upon driving-head 15 of the set. While this is being done, pressure on lever 31 is maintained so as to obtain the action of the lower endof guide 13 as shown in Fig. 7

for the purpose of holding the superposed pieces of sheet-metal in close contact all around the shank of the rivet until the connection of this latter is completed. The action is against a spring 34 which, by bearing against said lever 31, returns these parts to their respective normal positions after the rivet is clenched.

With a view to simplification, lever 29 is mounted upon pivot 18 which also supports lever 17 and to render this possible in a practical manner part of this lever is bent or bail-shaped as best shown in Fig. 2 which permits the two opposite parts of this bailshaped portion to be mounted upon the ends of pivot 18 with guide 13 supported between them. One of theseparts of this bail-shaped portion is continued rearwardly for con nection to link 33.

The rivets may be inserted in pocket 8 from the top, one at the time as needed, or they may be fed in through a slotted passage 35 which is laterally open as shown in Fig. 6. Metal abraded or sheared ofi by the rivets while being forced upwardly through the metal by punch 10 may clear through a ventopening 36 in die 11. p 1

Sheet metal work, where small pieces like handles for instance are connected, involves considerable riveting with use of a limited number of rivets per connection, the rivets being usually equally spaced. The distance between set 14 and die 11 may be arranged to equal this space and if this is done, work of this character may be formed quite expeditiously by means of this device because after the first rivet is placed by the punch, the subsequent positioning of this rivet below the set for forming its head also aids in placing the work in position for receiving the next rivet. Observe Fig. 6.

Having described my invention, I claim as new:

1. In a device of the kind described, the combination of a pivot,a frame in which it is supported, two operating levers mounted on this pivot, a rivet-set connected for operation to one of these levers, a countersunk die connected for operation to the other lever, a punch adapted to co-act' with the die mentioned, an operating lever for it and means to actuate all these levers. I

2. In a device of the kind described, the combination of an anvil for supportingsheet metal'to be riveted, a rivet pocket provided in said anvil, a punch movably supported in this pocket, a countersunk die movably supported opposite the rivet pocket and in axial alinement therewith, means to move this die in contact with the sheet metal while positioned. above the rivet pocket and meansto move the punch toward the die so as to force a rivet into the sheet metal.

3. In a device of the kind described, the combination of a support for the sheet metal, complementary rivet-inserting members consisting of a countersunk die and of a punch adapted to co-act therewith, an actuating lever for each of these members adapted to operate them so that the die is first moved upon the sheet metal from one side'after which the punch is moved against the other side for the purpose of inserting a rivet, a cam whereby these'levers are moved in the manner set forth, and means to actuate this cam.

4. In a device of the kind described, the combination of a frame comprising an anvil adapted to support sheet metal to be connected, a countersunk die and a rivet-set positioned above the anvil, a lever to actuate each, a pivot supported in the frame on 1,152,971- v I Y 3 adapted to support sheet metal to be con tioned and means to operate each of these nected, a countersunk die and a punch levers. 10 adapted to co-act therewith for the purpose In testimony whereof, I hereunto afiix my of inserting a rivet into the'sheet metal, a signature in the presence of two Witnesses.

lever to actuate each of these parts sup-- THEODOR REIS.

ported in the frameflnientioned, a rivet-set Witnesses: for clenching the inserted rivet, a lever to C. SPENGEL, actuate it also supported in the frame men- A. JOHNSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 1

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