US2098126A - Bus door safety lock bar - Google Patents

Description

Nov. 2, 1937. 5 2,098,126

BUS DOOR SAFETY LOCK BAR Filed Jan. 13, 1936 2 Sheets-Sheet l zmma Nov. 2, 1937. J. E. ZAITZ BUS DOOR SAFETY LOCK BAR 2 Sheets-Sheet 2 Filed Jan. 13, 1956 JUL/U5 E. zA/rZ Patented Nov. 2, 1937 I UNITED STATES PATENT GFFQE BUS DOOR SAFETY LOCK BAR Julius E. Zaitz, Hammond, Ind.

Application January 13, 1936, Serial No. 58,978

1,Claim. (Cl. 268-3) The present invention relates to a lock bar, In the accompanying drawings wherein for the and more particularly, a lock especially adapted purpose of illustration there is shown a preferred for doors of a motor vehicle such as a bus or embodiment of the invention, the reference nuthe like. meral l2 generally designates, the front portion 5 One of the objects of the present invention, is of a passenger motor vehicle such as a bus or the to provide a lock bar of the class described, which like, to which there is in the usual manner pivwill prevent the closing of the door or doors of otally mounted a door is. The door l i, in abus while passengers are loading and unloading busses of this character, are for the most part thereby preventing injury to the passengers. generally located opposite the seat of the driver,

A still further important object of the invenand are adapted through some means, to be 10 tion, is to provide a device of the character demanually opened and closed by the operator.

scribed, in which the door, when in a closed po- It has been found, that many of the devices, sition, cannot be opened, until the device is opernow in use, for effecting the opening and closing ated by the operator of the bus. of the doors of the bus, are not provided, with A still further important object of the inven safety means for preventing the unintentional 5 tion, is to provide in a device of the character opening and closing of the door and consequently described, novel means for preventing actuation serious injury is caused to the passengers by the of the lock bar, when the door is open, and the accidental opening of the same. operator of the bus is outside of the bus. In the present invention, to the front portion A still further important object of the invenl2 of the bus, there is secured, by means of bolts 20 tion, will be found to reside in the novel safety or the like a bracket IE on which there is pivotlatch construction, permitting of the door to be ally mounted for movement in a horizontal plane positively locked in closed position, or in open an arm !8. The free end of the arm, is apertured position, thereby preventing the door from causand through the medium of the pin 26 has piving injury to the passengers. otally mounted thereon a bar 22 which bar has 95 In the accompanying drawings wherein corits free end bifurcated as at 24 and pivotally responding parts are designated by similar refermounted to the door M for effecting an opening ence numerals:- and closing of the same, through the medium of Figure l is a front elevational view of the dethe bracket 26. As clearly illustrated in the drawvice showing the position of the same for mainings, the bifurcated end 24 of the bar 22 is pivot- 30 taining the door in a closed position. ally mounted to the bracket 26 through the me- Figure 2 is a top plan view of Figure 1. dium of the pin connection 28. Figure 3 is a vertical sectional view of Figure To the lock bar 22 at a position, within reach, 2 taken on line .3--3 thereof looking in the diand accessible to the operator of the bus, there rection of the arrows. is secured a latch box 30, the latch box being 35 Figure 4 is a top plan view of Figure 3. provided with a depending handle 32. It will Figure 5 is a view similar to Figure 3, showing thus be seen that the operator, through the methe position of the latch when the handle is dium of the handle 32 upon an outward pushing actuated, to release the same from the catch or an inward pulling may effect the opening box. or closing of the doc-r Id of the bus. 40

Figure 6 is a front elevational .view of the de- Referring now to Figure 3, it will be seen that vice for locking the door in open position. within the latch box 3|] adjacent the upper por- Figure 7 is a top plan view of Figure 6. tion of the handle 32, there is pivotally mounted Figure 8 is a fragmentary top plan View, showan actuating lever 36, which actuating lever as ing the position of the latch, with respect to the clearly illustrated, is normally urged away from 5 door of the lock box for preventing the door the handle 32, through the medium of the spring from being locked in closed position, when the 38. One end of the spring 35 is securely fastened operator is not in the bus. to the handle 32 through the medium of a screw Figure 9 is a fragmentary front elevational 4B, the free end of the spring abutting the lower view of the latching mechanism and the lock inner portion of the lever 36. As clearly illus- 50 box showing the position of the latch, with retrated in the drawings, the handle 32 is provided spect to the door for preventing the door from on its upper end with an integral inwardly exbeing locked in closed position. tending bifurcated portion 45, in which the upper Figure 10 is a perspective view of the lock box portion of the handle 36 is pivotally mounted or catch. through the medium of the removable pin 48. 55

thereof through the medium of the pin 58 a latch 60 the free end of which projects through an' opening in the end of the box 30, for suitable engagement and connection with a catching mechanism to be hereinafter more fully described.

The latch bar 60, has its innermost free end connected to the projection 50, through the me dium of the link 62, to the end, that upon in-j ward movement of the lever 36, as clearly illustrated in Figure the latch bar 60 is rotated, causing the free outer end thereof to be raised vertically, and upon release of the lever 36, the latch 60 moves through the medium of the springs 31 and 38 to its downward catching position.

Referring now, to Figure 6, it will be seen when the handle is pulled to its innermost position, effecting an opening of the door, to the front portion l2 of the motor vehicle opposite the latch box when in that position, there is securely fastened, to the front portion l2 a bracket 86 having on the outer free end thereof, an integral catch box 68. The outer free end 16 of the catch box 68 extends upwardly, and is adapted to cooperate with the free outer end of the latch, for securely fastening the latch thereto and maintaining the lock bar in position. It will thus be seen, that when the door is in the position illustrated in Figure 6, that is in open position, the same may be securely locked in that position, through the engagement of the latch bar 60 with its cooperating catch box 68. Upon inward movement of the'lever 36, the latch bar may be raised thus disengaging the same from the latch box to the end that the operator may push the handle outwardly to the position illustrated in Figures 1 and 2, for effecting a closing of the door. Securely fastened to the front portion I2 of the bus, in a position opposite the latch box 30 when in this position is a similar bracket 62 and catch box '68 for locking the door in closed position. The catch box 68 cooperating with the latch bar 60 when in this position, is, however, provided with a door 14, as illustrated in Figures 3 and 5. Normally this door is in its raised position as illustrated in Figures 3 and 5, however, When the operator desires to leave the bus with the door in closed position the door 14 is closed as illustrated in Figure 9 to the end, that the free end of the latch bar 60 cannot engage the upward projection 10 of the catch box 12 to effect a locking of the door while he is out of the bus.

It will thus be seen, that the door by virtue of the novel construction of the latch box, and its cooperating catch may be locked in either closed or open position, and when so desired, the operator may either lock the door in open position, or upon-closing the door 14 of the catch box or catch move the door to closed position without fear of being locked out of the bus.

While there is shown for the purpose of illustration, a preferred embodiment of the invention, it is to be specifically understood, that it is capable of various changes and modifications without departing from the spirit and scope thereof, and it is intended therefore, that only such limitations shall be imposed thereon as are indicated in the prior art or in the appended claims.

What is claimed is:-

A door actuating device for busses of the class described comprising a pivotally mounted door, an arm pivotally mounted on the interior of said bus for swinging movement in a horizontal plane, a bar having one end pivotally connected to the free end of said arm and the other end pivotally connected to said door whereby upon movement of said bar in one direction the door is moved to closed position and in the other direction to open position, 2. depending handle on said bar disposed intermediate the ends thereof, a latch box adjacent said bar, a pivotally mounted latch bar in said box, a lever pivotally mounted adjacent said handle for actuating said latch bar, a pair of spaced U-shaped catch members disposed in said bus, said latch bar being cooperable with one or the other of said catch members for maintaining and locking the door in the closed or open position thereof, said catch members cooperable with said latch bar for maintaining the door in closed position, being provided with a hingedly mounted door in its lower position preventing the engagement of the latch bar with said catch members whereby said handle may be moved to a position to close said bus door without the engagement of the latch bar with said catch member.

JULIUS E. ZAITZ.

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