US1552988A - Lock for folding-bracket joints - Google Patents

Description

se,"n s, .1925. g 1,552,983.

H, F. w. HQBERG E1' A1.

LOCK FDR FOLDING BRACKET JOINTS Filed sem. 2o. 1923 2- ,suena-shaw:

' dunno/mfr sepa a, 1925. i 1,552,933`v H. F. W. HOBERG ET AL LOCK FOR FOLDING BRACKET JOINTS Filed sept. 2o, 192e 2 's1-.urbana 2 M70/Mfr Patented Sept. 8, 19251.

mismas UNITED STATES PATENT orifice.,

HENRY F. W. HOBERG- AND ARTHlllVE-l L. BETTS, F CINCINNATI, OHIO, ASSIGNORS T0 AUGUSTINE DAT/"HS, JR., 0F COVINGTON, KENTUCKY.

LOCK FOR FOLDTNG-BRACKET JOINTS.

Application filed September 20, 1923. Serial No. 663,756.

To all whom. 'it may concern.'

Be it known that we, Hanni F. 1W. Homeric and ARTHUR L. Bmrs, citizens of the United States, and both residents of Cincinnati, in the county of Hamilton and State of Ohio, have invented a new and useiul Lock for Folding-Bracket Joints, ci which the 'following is a specification.

The invention has to do with folding brackets or braces used to support hinged closure. In the case ci' top-hinged doors ot bucket-boxes of tank trucks there is no danger of the door falling it the bracket joint is arranged to break upwardly, but in that event the members of the bracket when folded stand above their pivot supports and a great deal of wear, lcoseness and rattling results 'from the vibration of the movement et' the vehicle. Mor ver in many instances dimensions do not permit oit this arrangement.

The invention provides a lock for a bracket which tolds downwardly, which construction is not so subject to wear and rattle, but which heretofore has given rise to some accidents through some one idly taking hold oil the bracket. The device is a spring-pressed pivoted bridging piece having jaws to embrace the joint, a bevel to canse the piece to be automatically swung out ot the way as the door is raised and the joint straightens, and a finger-hold Yfor disengaging the lock when the joint is to be broken and the door lowered. j

ln the accompanying drawings forming part hereof Fig. l is a side view, with part of the bucket-box in section and the hinged door open;

Fig. 2 is a similar view, with the door in closed position;

Fig. 3 is a plan. view on a larger scale ot the improved bracket joint;

Fig. 4 is a side view;

Fig. 5 is an end view, with one of the bracket members in section; and

Figs. 6 and 7 are views similar to Figs. 3 and 4 showing the position of the parts when the joint is being` straightened.

A bucket-box is indicated at l, and 2 is tance alongI the member o its top-hinged door. rllhe folding` bracket comprises the members 3 and 4, pivoted respectively to the box and to the door and connected by the hinge joint 5, which folds downwardly.

The lock piece 6 is pivoted at one end to the member 4, a short distance from the hinge. The pivot 7 is at right angles to the hinge axis of the joint, so that the lock piece swings laterally with respect to the joint.

The lock piece is of such length as to project beyond the member 4 in the folded condition (Fig. 2) and to extend for a disin the straightened or supporting condition (Fig. 4), thereby bridging the joint. The piece has a side wall 8 to bear against the inner side ot the bracket, a bottom wall or jaw 9 to underlie the members oi the joint, and an upper jaw l0 to overlie the member A flat spring ll reveted to the member 4 and bearing against the side oit the lock piece serves to snap the latter into position and to hold it there.

The-j aw lO is beveled at l2 so as to canse the lock-piece to be forced out of the way by reaction against the bottom of the member 3 when the joint is straightened, the spring thereupon acting to snap the piece into locking position. The jaw 9 lies along the back or under side of the member 3 to which the locking piece is pivoted, so as to brace the lock on this member against pressure of the member 3 against the jaw 10 at the upper or inner side of the joint in the flexing direction.

A linger-hold 13 projecting downward 'from the lock-piece enables the lock to be disengaged.

lVhat we claim as new is:

l. A lock for a folding bracket joint, comprising a spring-pressed pivoted piece formed to bridge and embrace the joint, said piece being piv'oted to one of the members of the joint to swing laterally and having a bevel to cause the piece to be swung out of the way by contact with the other member as the joint straightens.

2. A lock as set forth in claim 1, characterized by the jaws 9 and 10 of the piece, the 3. A Ilook as set forth in claim l, further jaw 9V lying against lthe back or under side characterized by the fact that the pivoted of the member 4 to which the piece is piece `is provided with a downwardly prol pivoted so as to brace the lock on this memjecting finger-hold for disengagement of the 5 bei1 against pressure of the member 3 lock.

against the jaw l0 in the direotipn `of HENRY F. HQBERG. flexing. ARTHUR BETTS.

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