US1703932A

US1703932A - Automobile bumper

Info

Publication number: US1703932A
Application number: US154727A
Authority: US
Inventors: Oscar H Goetz
Original assignee: American Chain and Cable Co Inc
Current assignee: FKI Industries Inc
Priority date: 1926-12-14
Filing date: 1926-12-14
Publication date: 1929-03-05
Anticipated expiration: 1946-03-05

Description

Mar@ 5? E92@ Q. H. @mm-Z AUTOMOBILE BUMPER Filed. Dec. 1%@ i926 Patented Mar. 5, 1929.

UNITED STATES 1,703,932 PATENT OFFICE.

OSCAR H. GOETZ, OF CHICAGO, ILLINOIS, ASSIGNOR TO AMERICAN CHAIN COMPANY, INC., .A CORPORATION OF NEW YORK.

AUTOMOBILE BUMPER.

Application led December 14, 1926. Serial No. 154,727.

rllhis invention relates to automobile bumpers, and more particularly to bumpers of the multiple bar type, an object of the invention being to provide a multi-bar bumper with improved reinforcing members between the impact portion and the rear bar.

Another object of the invention is to provide a multi-bar bumper of the loop-end type with reinforcing members or cross conneclo tions between its impact and rear portions,

' the reinforcing members being formed in a continuation of the loop structure at each end of the upper and lower bars of the impact section.

A clear conception of the construction and objects of the invention may be had from the following description and accompanying drawings, in which Fig. l is a plan view of the preferred form 2o of the bumper;

Fig. 2 is a plan view of a modified form of the bumper;

Fig. 3 is a plan view of a further modilied form;

Fig. 4 is a front view of Figs. 1, 2 and 3.

Fig. 5 is a cross section at 5-5 of Fig. 4.

Fig. 6 is a cross section at 6--6 of Fig. 4.

Fig. 7 is a cross-section through 7-7 of Fig. 2.

Fig. 8 is a cross-section through 8-8 of Fig. 4.

rFlic now preferred form of 'the invention shown in- Figs. l and 4 comprises an impact section formed of three bars. The main or 3e central bar l is formed with loop ends 2, the continuations of which are laterally bent toward each other and bolted together at 3 to form a rear or connecting bar which lies in the same horizontal plane as the central .fio bar l of the impact member.

Parallel to and in the same vertical plane with main bar l are two

auxiliary bars

6 and 7, which are supported above and below the main bar l by means of spacing and clamping

members

6 and 9, the spacing member 8 being set at the middle of the impact portion, and serving to clamp and space the bars l, 6 and 7. Spacing and clamping members 9 are positioned midway between spacing 5a member 8 andthe loop ends of the

bars

6 and 7, and are used as a connecting and clamping means for the free ends of

bars

6 and 7 which are formed with ioop ends 4 and 4 of substantially same curvature as loop 2.

At the point 5 'where the free ends of loops 44 and 4 leave the line of curvature of loop ends 4 and 4 the ends of the

bars

6 and 7 are clamped by means of a clamp 5 bolted to the bars as shown in Fig. 4 holding them securely aligned in a vertical plane.

In Fig. l the free ends of

bars

6 and 7 are brought forward as shown at 10, to the back of the impact portion of their respective bars, and clamped by means of clamp 9.

ln Fig. 2 the free ends of

bars

6 and 7 are brought forward in an S-shape as shown at and clamped to the back of their respective impact portions by clamps 9.

ln Fig. 23 the free ends of

bars

6 and 7 are brought forward to form straight struts, inclined-at -an angle of about degrees as shown at 30,' and clamped by clamps 9.

'lhe struts 30 and the S-shaped reinforcements 20, in Figs. 3 and 2 respectively, may be either integral continuations of the

bar portions

6 and 7 or may be separately formed parts in continuation thereof, clamped in place at 5 and 9 respectively, and using preferably the type of clamp shown in Fig. 5 for both regions.

Clamp 8, as shown in Fig. 6, may be a die casting, having curved lips l1 suitable to hold the edges of

bars

6 and 7 in engagement with the lugs or bosses 12. rlhese bosses are threaded to accommodate bolts 14, and are placed at a sufcient distance apart to accommodate bar l. rear or clamping plate 15 is forced by bolts 14 into engagement with

bars

1, 6 and 7, holding them securely and aligning them in a vertical plane.

rlhe clamp 9 is of the same general construction as-clamp 8, with the exception that the lips Ill are extended suciently to allow for

holding bars

6 and 7, and also the free ends 10 of the same bars.

rlhis tvpe of bumper, having reinforcing means of any of theforms shown, is capable of sustaining a sharper impact than the 0rdinary type of bar bumper. The Afront or impact portion will also return to its normal position quicker because of the resiliency of the reinforcing members, except when use is `made of the struts shown in Fig. 3, which may be readiiy substituted when greater rigidity is desirable on account of the particular use to which the bumper lis to be By making the reinforcing members separately, provision may be made for ready adaptation of this type of bumper to di'erent requirements in service without necessitating a substitution of

different impact bars

6 and 7, and the necessary change can be effected by a purchaser, Without need for special skill, or for drilling or machining any of the parts.

The clamping member shown in Fig. 7 consists of a strip of metal haring its upper and lower edge portions bent square, and a rear plate 18 consisting of a straight strip of metal, both strips being drilled with holes to accommodate bolts 15, which pass through washers 19 set between the bars 1, (i and 7, thereby holding the liars in spaced relation with each other.

The. clamp at 5 in Fig. 4 is shown in Fig. 8 and consists of a plate 2l having a curved lip at each end and holes of a suflicient size to accommodate bolts 5 which engage the lug-shaped parts 22. The bars 1, G and 7 are spaced and held by the lips and lugs, and are forced into close engagement with bar 21 by means of bolts l5.

rlhe structures shown in Figs. 4, 5, and 6 herein form the subject of claims in my copendin applications Ser. No. 154,726, filed Decem er 14, 1926, and Ser. No. 304,961, filed September 10, 1928.

1. An automobile bumper comprising as a main element a bumper bar constructed in a horizontal plane, having a front impact portion with loop-ends, and a rear attaching portion formed in continuation of said loopends, said bumper comprising also auxiliary impact bars with loop ends, supported by said main bar in vertical alignment with the impact portion and loop ends thereof, and means cross-connecting said loops of the auxiliary bars to their respective impact portions.

2. An automobile bumper comprising as a main element a bumper bar constructed in a horizontal plane, having a front impact por tion with loop-ends, and a rear attaching portion formed in continuation of said loopends, said bumper comprising also auxiliary impactI bars With loop ends, supported by said main bar in vertical alignment with the impact portion and loop ends thereof, and means cross-connecting said loops of the auxiliary bars to their respective impact portions at regions spaced laterally from each other, and spaced inwardly from the lateral extremities of said loops.

3. An automobile bumper comprising as a main element a bumper bar constructed in a horizontal lane, having a front impact portion With l portion formed in continuation of said loop ends, said bumper comprising also auxiliary impact bars with loop ends, supported by said main bar in vertical alignment with the impact portion and loop ends thereof, and means cross-connecting said loops of the auxiliary bars to their respective impact poroop ends, and a rear attaching tions, said cross-connections including means to connect the loops of said auxiliary bars to the loops of said main bar.

4. An automobile bumper comprising as a main element a bumper bar constructed in a horizontal plane, having a front impact portion with loop ends, and a rear attaching portion formed in continuation of said loop ends, said bumper comprising also auxiliary impact bars With loop ends, support-ed by said main bar in vertical alignment with the impact portion and loop ends thereof, and means crossconnecting said loops of the auxiliary bars to their respective impact portions, said cross connections including means to connect the impact portions of said auxiliary bars to the impact portion of said main bar.

5. An automobile bumper comprising as a main element a bumper bar constructed in a horizontal plane, having a front impact portion with loop ends, and a rear attaching portion formed in continuation of said loop ends, said bumper comprising also auxiliary impact bars With loop ends, supported by said main bar in vertical alignment with the impact portion and loop ends thereof, and means cross-connecting said loops of the auxiliary bars to their respective impact portions, said cross-connection including means to connect the impact portions of said auxiliary barsI to the impact portion of said main bar, and said cross-connections including means to connect the loops of said auxiliary bars to the loops of said main bar.

6. An automobile bumper comprising as a main element a bumper bar constructed in a horizontal plane, having a front impact portion with loop-ends, and a rear attaching portion formed in continuation of said loop ends, said bumper comprising also auxiliary impact bars supported by said main bar in ver- .tical alignment with the impact portion and loop ends thereof, and means cross-connecting the impact portions of said auxiliary bars with the rearvard loop portions thereof at regions spaced laterally from each other and spaced from the ends of said loops, the regions of connection with the impact portions being nearer the middle of said bumper than the regions of connection with said rearward loop portions.

7. An automobile bumper comprising as a main element a bumper bar constructed in a horizontal plane, having a front impact portion with loop ends, and a rear attaching portion formed in continuation of said loop ends,. said bumper comprising also auxiliary impact bars supported by said main bar in vertical alignment With the impact portion and loop ends thereof, and the ends of the loop portions of said auxiliary bars being brought forward and connected to their respective impact portions.

8. An automobile bumper' comprising as a main element abumper bar constructed in a horizontal plane, having a front impact portion with loop ends, and a rear attaching portion formed in continuation of said loop ends, said bumper comprising also auxiliary impact bars supported by and clamped to said main bar in vertical alignment With the impact portions, and loop ends thereof, the free ends of said auxiliary bars being drawn forward to constitute resilient struts at their forward portions to their impact portions respectively, and secured to said rear bar at the region Where said connections depart from alignment therewith.

9. An automobile bumper comprisingl as a main element a bulnper bar constructed in a horizontal plane, having a frontV impact portion with loop ends, and a rear attaching portion formed in continuation of said loop ends, said bumper comprising also auxiliaryv impact bars supported by and clamped to said main bar in vertical alignment with the impact portions, and loop ends thereof, the free ends of said auxiliary bars being drawn forward to constitute S-shaped struts at their forward portions to their impact portions respectively, and secured to said rear bar at the region Where said connections depart from alignment therewith.

l0. An automobile bumper comprising as a main element a bumper bar constructed in a horizontal plane, having a front impact portion with loop ends, and a rear attaching poi tion formed in continuation of said loop ends, said bumper comprising also auxiliary im pact bars supported by said main bar in ver tical alignment with the impact portion and loop ends thereof, and separately formed members closing said auxiliary loops respecm tively and cross-connecting said impact portions thereof With the rearwardly extending portions of said loops.

1l. An automobile bumper comprising as a main element a bumper bai.' constructed in a horizontal plane, having a front impact portion With loop ends, and a rear attaching portion formed in continuation of said loop ends, said bumper comprising also auxiliary impact bars supported b v said main bar in vertical alignment with the impact portion and loop ends thereof and separatelyv formed 'resilient struts secured to the free ends of said auxiliary bars and to their respective impact portions, and serving as cross-connections therebetween.

12. A clamping device for multi-bar bumpers of the type described, said Clamping device comprising a plate having lips to confine the bars at their outer edges, and bolts passing through said plate and between said bars. said bolts having spacing parts thereon to hold said bars in desired relation to each other and to said lipsA` said spacing parts also being formed, each as an integral structure with a member of its bolt, with lips to confine said bars and hold them against said plate.

13. A clamping device for multi-bar bumpers of the type described, said clamping de vice comprising a plate having lip-s to contine the bars at their outer edges and spacing parts to hold said bars in. the desired relation. to each otherand said lips, and said spacing parts co-acting directly with bolts passing 'through said plate to hold said bars against said plate.

ln testimony whereof I have signed this specification.

OSCAR H.