US1735901A

US1735901A - Bumper clamp

Info

Publication number: US1735901A
Application number: US206436A
Authority: US
Inventors: Herbert S Jandus
Original assignee: CG Spring and Bumper Co
Current assignee: CG Spring and Bumper Co
Priority date: 1927-07-18
Filing date: 1927-07-18
Publication date: 1929-11-19
Anticipated expiration: 1946-11-19

Description

NOV. 19, 1929. s, JANDUS 1,735,901

BUMPER CLAMP Filed July 18, 1927 Patented Nov. 19, 1929 UNITED STATES PATENT OFFICE HERBERT S. JANDUS, OF DETROIT, MICHIGAN, ASSIGNOR,V BY MESNE ASSIGNMENTS, TO GENERAL SPRING BUMPER CORPORATION, A CORPORATION F MICHIGAN BUMPER CLAMP Application filed July 18,

This invention relates to a clamp for vehicle bumpers and more particularly to a clamp plate against which the several bars of the bumper may be clamped.

An object of the invention is to provide a clamp which may be convenientlyapplied to the bumper. A further object is to provide such a clamp which can be economically constructed of suitable material and which at the same time will insure the rigid connection of the bumper bars under serviceconditions. A further object is to provide such a bumper which will at the same time present an attractive appearance in conjunction with the remainder of the bumper.

`Further objects will be apparent from the V descri-ption and drawings and from the use of the articles covered by the claims.

In the vdrawings Fig. 1 represents a plan view of a bumper with my cla-mp attached at its central portion; Fig. 2 represents a fractional front elevation of the central portion of the bumper shown in Fig. 1, showing the clamp in detail; Fig. 3 shows a sectional View taken on the line 3 3 of Fig. 2; Fig. 4 shows a rear view of the front plate of the clamp;

Fig. 5 shows a sectional view taken on the line 5 5 of Fig. 2; Fig. 6 represents a Sectional view talren on the line 6-6 of F ig. 2.

For the purpose of describing my clamp I will assume the bumper to be attached to the front of a vehicle and the terms front and rear7 will be used in reference'to such assumption. Corresponding parts of the bumper and clamp will be indicated by like numerals throughout the several figures of vthe CII drawings.

The reference characters 1 and 2 denote the impact bars of a bumper of the general type shown in U. S. Patent No. 1,372,154, issued March 22, 1921 to Allan L. McGregor. It is not intended, however, to hereby restrict the use of my clamp to any particular type of bumper and its applicability to other types of bumpers will be apparent to one skilled in the art. The rear bar 3 of the bumper is pivotally connected at its ends to the ends of the impact bars by means of the pins 4:, 4, 00- and its central portion is bent forwardly and 1927. Serial No. 206,436.

is connected to the central portion of the impact bars by means of my clamp.

rlhe clamp consists of a front plate 5, a rear plate 6, and cap screws 7 and 8 passing through the plate 6, between the bars 1 and 3, and 2 `and 3, respectively, and into threaded apertures in the portion 9 of the clamp plate 5.` The plate 5 is preferably cast or forged and if so may be of any suitable material capable of being die cast or forged. This plate is provided with a raised rib 10, projectingk from its rear surface and extending around its periphery, which may bear upon the front surfaces of the bars 1, 2 and 3. At the upper and lower extremities of this plate the portions 11 and 12 project rearwardly to provide a bearing surface for edges of the impact bars. In the rear surface of this plate there is provided a recess 13 for the reception of a suitably configured plate 9. The plate 9 is rigidly fastened to the plate 5 by means of studs 14 and 15 which are integral with the plate 5 and adapted to pass through suitable apertures in the plate 9 and to be upset therein as shown at 16 and 17 respectively. The plate 9, which may be of steel or other suitable material, is adapted to bear upon the front surfaces of the several bars and is provided with threaded apertures 18 and 19, placed opposite the spaces between the impact bars, for the reception of the ends of the cap screws 7 and respectively.

In the assembly of my plate 5 I have allowed a space 13fL between the plate 9 and the bottom of the recess 13 in order ythat they projection of the shanks of the cap screws 7 and 8 beyond the edge of the plate 9 will not force the plate 5 from the plate 9.

In assembling the clamp plate upon a bumper I place the plate 5 upon the front surface of the impact bars so that the steel portion 9 bears upon the several bars and the projecting portions 11 and 12 bear kupon edges of the impact bars 1 and 2. The plate 6 is then applied to the rear surface of the bars so that it will bear upon the rear surface of the bar 3 and so that the apertures therein will register with those in the inlaid plate 9. The cap screws 7 and 8 are then passed'through the apertures in the plate 6,

between the impact and rear bars, and are screwed into the threaded apertures 18 and 19 in the plate 9.

rEhe rear plate 6 is shown as straight and only in contact with the bar 3. It is intended that this plate be of relatively soft material which will be bent by the pressure of the cap screws 7 and 8 until its ends are in contact with the rear surfaces of the bars 1 and 2. It is apparent that this plate may be initially bent to provide a bearing upon the rear surfaces of the impact bars and the particular configuration shown for this'plate is not essential to my invention.

By the use of the clamp plate I have here described the plate 5 may be cast or forged in any suitable shape to meet the structural and ornamental requirements. The steel inlaid portion 9 may then be inserted and the ends of the studs 14 and 15 upset to hold the two plates rifridly together. It is preferable that the surface of the plate 9 be slightly raised above the surface of the projection 10 in order that the greatest strain upon the clamp will be upon the steel plate. The steel plate provides material into which the cap screws may be permanently threaded and provides a bearing surface of a material or sufficient tensile strength to withstand the shocks to which it is likely to be subjected while in service. rlhe cast or forged plate 5 may be of less expensive material and may be more readily and inexpensively produced in the desired shape. l

lt is apparent that my clamp could be used at other positions upon the bumper where it is desired to connect several bars and it is not intended to hereby restrict its use to a center clamp.

Having'thus described my invention, what l claim is l. he combination with a pair of spaced impact bars anda reinforcing bar adapted to be connected thereto, of a clamp for holding said impact bars in proper spaced relation to the reinforcing bar, said clamp consisting of a cast plate having a steel plate recessed therein and rigidly attached to the rear surface thereof and adapted to bear upon the front surfaces of the impact and reinforcing bars, a plate adapted to bear upon the rear surface of the reinforcingbar and means, passing through said last mentioned plate and between the impact and reinforcing bars, adapted to screw into the recessed portion of the front plate, for drawing said plates toward cach other. V

2. The combination with a pairof spaced impact bars and a reinforcing bar adapted to be connected thereto, of a clamp for holding said bars in proper spaced relation, said clamp including a cast metal plate having a steel plate recessed therein, and rigidly attachee to the rear surface thereof, said steel plate being adapted to bear upon the front surface of a bar, a plate adapted to bear upon the rear surface of the reinforcing bar and means, passing between said impact and reinforcing bars and adapted to screw into the inlaid portion of the front plate, for drawing said plates together.

3. The combination with spaced impact bars and an auxiliary bar adapted to be connected thereto, of a clamp to hold said bars in proper spaced relation, said clamp including a steel plate adapted to bear upon the front surface of the impact bars, a cast metal plate adapted to be rigidly connected to said steel plate, a plate adapted to bear upon the rear surface of one of the bars, and means for drawing said front and rear plates toward each other. l

4;. The combination with spaced impact bars and an auxiliary bar adapted to be connected thereto, of a clamp to hold said bars in proper spaced relation, said clamp including a steel plate adapted to bear upon the front surface of the impact bars, a plate adapted to be rigidly connected to said steel plate, a plate adapted to bear upon the rear surface of the auxiliary bar, and means for drawing said front and rear plates toward each other, said last mentioned means consisting of a threaded shank adapted to pass between the impact and auxiliary bars and to be screwed into suitable threaded apertures in the steel plate and having shoulders adapted to bear upon the rear surface of the rear plate.

5. The combination, of a pair of vertically spaced bumper bars and an auxiliary bar adapted to be connected thereto, of means for clamping the said bars, said clamping means consisting of a steel plate adapted to bear upon the front surfaces of the impact bars, a plate rigidly attached to said steel plate and adapted to bear upon the outer edges of the impact bars, a plate adapted to bear uponthe rear surface of one of said bars and means, adapted to screw into said steel plate, for drawing said front and rear plates toward each other.

G. The combination with spaced bumper bars and an auxiliary bar, of means for holding said bars in proper spaced relation, said means consisting of a metal plate adapted to bear upon the front surface of the spaced bars, a plate rigidly connected to said bearing plate and adapted to cover the same, a rear plate adapted to bear upon the rear surface of the auxiliary bar and means adapted to screw into said front bearing plate for drawing said front and rear plates toward each other.

7. The combination with spaced bumper bars and an auxiliary bar, of means for holding said bars in proper spaced relation, said means including a plate adapted to bear upon the front surfaces of the spaced bars, a plate adapted to be rigidly attached to said bearing plat`e and to cover the same, a plate adapted to bear upon the rear surface of a bar, and means for drawing said bearing plates toward each other.

8. The combinationwith spaced bumper bars and an auxiliary bar, of means for holding said bars in proper spaced relation, said means including a plate adapted to bear upon the front surfaces of the spaced bars, a plate adapted to be rigidly attached to said bearing plate and to cover the same, a plate adapted to bear upon the rear surface of a bar, and means for drawing` said plates toward each other, said means being adapted to pass between the spaced and the auxiliary bars and to screw into the front bearing plate.

9. The combination with spaced impact bars and an auxiliary bar, of means for holding said impact bars in proper spaced relation to the auxiliary bar, said means consisting of a plate adapted to bear upon the front surface of the impact bars, a plate rigidly connected to said bearing plate, a rear plate adapted to bear upon the rear surface of the auxiliary bar and means for drawing said plates toward each other.

10. The combination with spaced impact bars and an auxiliary bar, of means for holding' said impact bars in proper spaced relation to the auxiliary bar, said means consisting of a plate adapted to bear upon the front surface of the impact bars, a plat-e rigidly connected to said bearing plate, a rear plate adapted to bear upon the rear surface of the auxiliary bar and means for drawing said plates toward each other, said means consisting of cap screws adapted to pass between the impact and auxiliary bars and screw into threaded apertures in the front bearing` plate.

11. A clamp for bumper bars including a steel plate adapted to bear upon the front surfaces of the bars, said plate being rigidly connected by means of studs passing therethrough to a plate adapted to cover the said bearing plate, a rear plate adapted to bear upon the rear surface of a bar, and means for drawing said plates toward each other, said means consisting of cap screws adapted to screw into the said front plate.

12. A clamp for bumper bars including a plate adapted to bear upon the front surfaces of the bars, said plate being rigidly fixed to a plate adapted to cover the said bearing plate, a rear plate adapted to bear upon the rear surface of a bar and means for drawing said plates toward each other.

13. A clamp for bumper bars including a plate adapted to bear upon the front surface of the bars, said plate being rigidly fixed to a plate adapted to cover the said bearing plate, a rear plate adapted to bear upon the rear surface of a bar and means for drawing said plates toward each other, said last mentioned means being' adapted to screw into suitable threaded apertures in the front bearing plate. l

- 141. Aclamp plate for bumper bars, said plate including a cast portion having a recess therein for the reception of a plate adapted to withstand severe shocks, and having studs adapted to pass through suitable apertures in the said first mentioned plate and be riveted thereto.

15. A clamp plate for an automobile bumper, said clamp plate consisting of a cast plate havinga recess in its rear surface and studs projecting therefrom, a metal plate having apertures to receive said studs and being adapt-ed to lit within said recessed portion and to .be rigidly connected to said cast plate by means ofthe studs, said last mentioned plate having a threaded aperture therein for the reception of a screw.

16. A clamp plate-for an automobile bumper, said clamp plate consisting' of a metal plate having a recess in its rear surface and studs therein, a plate having apertures to receive said studs and being .adapted to lit into said recessed portion and to be rigidly connected theretoby means of said studs.

17. A bar clamp including a plate having a recessed portion in its rear surface, a plate adapted to lit into said recessed portion and to be fastened thereto by means 0f studs projecting from the said plate, a plate adapted to bear upon the rear surface of a bumper bar and means for drawing said plates toward each other.

18. A bar clamp including a plate having a recessed portion in its rear surface, a plate adapted to fit into said recessed portion and to be fastened thereto by means of studs projecting from the said plate and through apertures in said bar, a plate adapted to bear upon the rear surface of a plate and means adapted to screw into suitably threaded apertures in said clamp plate for drawing said plates toward each other.

19. The combination with a pair of spaced impact bars, of a bearing plate adapted to bear upon the front surfaces of said bars, a front plate fixed to and supported by said bearing plate, a rear plate adapted to bear upon the rear surface of one of said bars, and clamping means for drawing said bearing plate and said rear plate toward each other.

20. A bar clamp including a bearing plate adapted to bear upon the front surface of a bar, a front plate adapted to be fastened to and supported by said bearing plate, one of said plates having a projecting port-ion adapted to bear upon an edge of the bar, a rear plate adapted to bear upon the rear surface of the bar, and means for drawing said bearing and rear plates toward each other.

21. A clamp plate comprising an ornamental plate havin@v a recess in its rear surface, a bearing plate adapted to be positioned in said recess and to be fixed to said ornamental plate,

said bearing` plate having a threaded aperture therein and said recess providing a space between it and the bearing plate opposite said aperture.

22. A clamp for a vehicle bumper including an ornamental plate, a bearing plate fixed to the rear surface thereof and havinof its bearing surface raised above the edge of the first mentioned plate, and clamping means connected to said bearing plate, said bearing plate being` of material suitable to withstand the shear strains set up when clamped.

28. A clamp for a vehicle bumper including an ornamental plate of cast material, a bearing plate fixed to the rear surface thereof and having` its bearing` surface raised above the edge of the first mentioned plate, and clamping means connected to said bearing plate, said bearing plate being of material suitable to withstand the shear strains set up when clamped.

In testimony whereof, l hereunto affix my signature.

HERBERT S. JANDUS.