SI9011623A - Lock, specially for outside swing doors of buses - Google Patents

Abstract

The present invention describes a lock intended for the outer swing door of the omnibus and is consisting of a housing (1) fitted to a door (7) and external and internal levers (2,4) and their associated door locks (5) that lock and unlock doors (7) rotates the swivel bar (69), the outer rod the lever (29) is connected to the lever (5) in such a way that it can be rotated with the sl 9011623 A by unlocking or locking the lock, the inner lever (4) is only connected to the lever at unlocking, the outer arm (2) being made of a cylinder lock (3) to block its rotation.

Description

LOCK LOCK INTENDED FOR OUTSIDE OMNIBUS DOORS

TECHNICAL CLASSIFICATION OF THE INVENTION

The present invention describes a lock intended for the outer swing doors of an omnibus that falls within the field of production of vehicle parts, in particular body parts.

TECHNICAL PROBLEM

The technical problem whose solution is described in the invention is as follows; how to make a lock on a swing door for buses, which in the case of a longer bus stop and in case of pressure drop in the air system, will not be able to open the door from the outside, and at the same time it will be possible to open the door from the inside of the bus, eg. in the case of an accidentally sealed bus passenger. In addition, it should be a lock of solid construction and easy to manufacture, assemble and operate.

DESCRIPTION OF THE INVENTION

The external swing doors of an omnibus or similar vehicle are normally opened and closed from the driver's seat, using generally compressed air. In the event of an emergency, such doors may be manually opened by means of an emergency door lever located above the door on the bus and connected to the door opening mechanism.

DESCRIPTION OF THE TECHNICAL PROBLEM SOLUTION

In the present invention, the described solution to the technical problem is as follows; the lock consists of a housing attached to the door and an external and an internal hook and a lever associated therewith, which rotates the slide bar to unlock and lock the door, the outer hook being connected to the lever in terms of locking and unlocking and an internal hook connected to the lever only in unlocking direction, with the outer hook connected to a cylindrical lock to lock it from turning.

Further advantages of carrying out the invention are given in the following requirements.

The invention will be more specifically described on the basis of the embodiment shown in the drawings, wherein:

Fig. 1 shows a view of the lock Fig. 2 shows a cross section ll-ll from Fig. 1 Fig. 3 shows a cross-section lll-lll from Fig. 1 Fig. 4 shows a cross-section IV-IV of Fig. 2 Fig. 5 shows a section V-V of Fig. 2.

The new lock is assembled according to its main components from the housing (t), the outer hook (2) with the cylindrical lock (3), the inner hooks (4) and the levers (5) for the pull bars (6).

The housing (1) is approximately square in shape with a flange (8) resting on the door (7), the housing (9) of the housing, at the bottom (10) of the trough (9), the bearing-mounted bearing (11) connected at the rear. ) with a bottom (12), a central opening (13) in the bottom (12) and an eccentrically positioned shaft (14) at the bottom (12). At the back of the flange (8) there are discharges for fastening elements (16), through which the lock is mounted on the door (7) with the help of fasteners (17). A semicircular cutout (18) is made at the bottom (12) of the trough (9). The bearing bracket (11) of the housing (1) is provided with a radial cutout (19) that passes through the bearing bracket (11) and is located near the bottom (12). On the periphery of the cylindrical shape of the bearing bracket (11) there are two 90 ° spaced notches (20), one of which is visible in Figure 2. The outer hook (2) has two wings (21), deepened into the sink (9). On the back (21) there is a one-piece, with an external hook (2) a bearing (22), which encloses a cylindrical lock (3), which is secured in the bearing by a clamping wedge (23). The bearing (22) is cylindrical, has a perforated bottom (24) and a shaft for the hardening element (26). The bearing (22) is movable in the bearing bracket (11), the housing (1) and passes through the opening (13) in the bottom (12) of the bearing bracket (11) with the shaft (25). The bearing (22) has a recess (27) that is in contact with the recess (19) of the bearing carrier (11) when the wings (21), for example, are in the central position, as shown in Figure 1. When the recesses (17 ) and (19) by means of a key (28) in the cylindrical lock (3), the wedge in the notch (19,27) can be pulled so as to secure the outer hook (2) against rotation in the housing (1). In this connection, it should be noted that the mechanism of the cylindrical lock (3) is designed so that the key (28) can be inserted and pulled into the cylindrical lock only when the wings (21) are in their central positions, Figure 1.

The outer hook (2) carries on its rear side an eccentrically shaped shaft (30) of the lever that is parallel to the bearing (22). The crank shaft (30) first passes through a semicircular cutout (18) into the bearing in the housing (1), with the reason that the outer hook (2) can only be turned 180 °. Therefore, the return spring (31) is positioned around the mounting bracket (11), which with one free end rests on the discharge of the housing, which is not shown, and with the other end rests on the shaft (30) on the lever, so that the wings (21) permanently hold in the center position Figure 1 or return to this position after activation. When rotating the wing (21) 90 ° clockwise from the center position (in this case, the cylinder lock is open and the wedge is pulled out of contagion 19 and 27), the lever (5), which is gripped by the shaft (30) of the lever , turns in the direction of opening, with the pull bar (6) being pulled out of its locking position (the ends of the swinging bars go into the openings within the door not shown). When the wing (21) is rotated 90 ° from the center position, the anti-clockwise direction (even in this case the cylinder lock must be opened and the wedge (29) pulled back), the locking position of the pull bar (6) is established.

The lever (5) has a hollow cylinder (32) that encloses the bearing bracket (11) of the housing (1), a semicircular groove (33) located in a 90 ° angular area and a flange (34) with two arms on the outside of the hollow cylinder , at the ends of which the ears (35) or the like of a weak move (6). On the opposite side of the semicircular groove (33) of the flange (34) there is a single extension (36) extending from the lever (5), which has an opening (37) which passes through the hollow cylinder (32) at the axis of the hollow cylinder (32). ). In the opening (37) there is a ball (38) with a thrust spring (39) which rests on a wedge (40). The ball (38) always stops in one of the two notches (20) for locking the mounting bracket in order to hold the lever (5) optionally in its locking position, shown by the solid line in Fig. 4 or the unlocked position, shown by the dotted line .

Only a cross-section groove (33) is visible in cross-section, but in Fig. 2, the lever (5) is closed on both sides. When turning the outer hook (2), the shaft (30) of the lever (1) is caught by one end of the semicircular groove (33) in order to move the lever (5) to the locking position or the unlocking position (compare with Figure 4). When the lever (5) has taken one or the other position, the outer hook (2) is turned by its return spring (31) to its center position, according to Figure 1, with the shaft (30) of the lever passing the end of the semicircular groove (33). to lean against the other end of the semicircular groove. It is worth noting, as can be seen from Figure 4, that when moving from the locked position to the unlocked position, the pull bars (6) pass over the dead end because they are connected outside the horizontal (41) on the flange (34) of the lever (5). As a result, the drawstrings (6) cannot be unlocked when forcibly opened when placing a tool in the door sealing area.

The inner hook (4) has a two-piece design and consists of an adapter (42) and an associated round lever (43). The adapter (42) is in the form of a sleeve and has a bottom (44) enclosed by a cylindrical attachment (45). In the bottom (44) of the adapter (42) there is a centered opening (46) which has the appearance of an arch (47). The adapter (42) is mounted on the mounting bracket (11) of the housing (1), with the bottom (12) and (44) lying opposite, the shaft (25) passing through the opening (46), the shaft passing through the snap (47) and the attachment (45), hollow cylinder (32) of crank (5), in both places. With the help of the fastening elements (26), for example by rotating the self-tapping thread with the washer and the star washer, the adapter (42) is fixed on the housing (1). The detachment (42) with the shaft (14) allows only one turn of the inner hook in the opening direction. Extending the grip could create a natural and lockable movement of the inner handle (2), thereby locking the vehicle door from the inside, which is undesirable for certain reasons.

The adapter part (45) has a notch (48) into which the extension (36) of the lever (5) comes. As long as the extension (36) does not rest on the end (49) of the cutout (48) (in this case the pull bars (6) are in the locked position), the handle (5) can be moved to the unlocking position (4) by turning the inner hook (4). shown in Figure 4 with a dotted dotted line). After the unlocking turn, the inner hook (4) is automatically reversed to its exit position, for which a return spring (50) is provided, which rests on one end with the slots (51) of the adapter and with the other end on the shaft (14). The reverse movement will be stopped by the other end (52) of the cutout (48) resting on the extension (36).

The adapter (42) has hooks (53) at its free ends that cooperate with the hooks (54) located on the elastic arms (55) of the round handles (43). Mounting openings (56) allow for disassembly if necessary.

The lock of the present invention, with intermediate seals (57.58) preventing moisture from penetrating the interior of the door, is easily, easily and quickly mounted. Since the outer hook can only be turned with the key inserted (28), the unwanted opening is off. On the other hand, the key lock can be activated easily. A particular advantage is the possibility given by the invention of opening the door from the inside without a problem. The advantage is that there is only one unlocking option for the inner hook, except that manipulation on the inside of the hook will cause unwanted locking. On all sides of the driver, unnoticed locking could cause considerable damage when opening the door via the automatic control system, and the invention also provides for a safety device, for example, by means of tell-tale lights mounted on the operator's control panel and indicating to the driver whether the lock is locked or unlocked . The safety light can be operated via the vehicle's electrics and can interact with the microswitch (59) located in the recess (60) of the housing and closed so that the pull bars (6) are in the locked position.

Claims (15)

PATENT APPLICATIONS A lock intended for the outer swing door of an omnibus, characterized in that it consists of a housing (1) fastened to the door (7) and external and internal hooks (2,4) and a lever (5) connected thereto for unlocking and locking the door (7) rotates the pull rod (6), with the outer hook (2) connected to the lever (5) in terms of turning for locking and unlocking and the inner hook (4) connected to the lever (5) exclusively in the direction of turning for unlocking , wherein the outer hook (2) is made with a cylindrical lock to block its rotation. Lock according to claim 1, characterized in that the outer hook (2) is mounted on the housing (1), with the possibility of turning from the center position opposite to the action of the return spring (31) by about 90 ° to the right or left. Lock according to claim 1 or 2, characterized in that the outer hook (2) is recessed into the housing (8) of the housing. Lock according to at least one of Claims 1 to 3, characterized in that the outer hook (2) is one-piece with a bearing (22) behind the cylindrical lock and thus passes into the cylindrical shaped bearing bracket (11) of the housing (1), wherein both the bearing (22) and the bearing bracket (11) have radial notches (19,27) through which the wedges (29) of the cylindrical lock (3) are activated by a key (28) when the outer hook (2) is located in its central position. Lock according to at least one of claims 1 to 4, characterized in that the mechanism of the cylindrical lock (3) is designed so that the key (28) can only be pulled out when the lock (29) is in its locking position . Lock according to at least one of Claims 1 to 5, characterized in that the outer hook (2) in the axial extension of the bearing (22) carries a centrally mounted shaft (25) passing through an opening (13) in the bottom (12). the bearing bracket (11) and serves to hold the curing element (26) resting on the inner hook (4) on the housing (1). Lock according to at least one of Claims 1 to 6, characterized in that the outer handle (2) has an eccentrically mounted axle (30) of the lever (22) parallel to the bearing (22) at the rear of its wing (21). the slit (18) in the trough (9) and with its free end catches the semicircular groove (33) of the lever (5) bounded on both sides. Lock according to at least one of Claims 1 to 7, characterized in that the separate recess (18) in the trough (9) and the lever shaft (10) passing through it restricts the mobility of the outer handle (2). A lock according to at least one of claims 1 to 8, characterized in that the lever (5) has a hollow cylinder (32) enclosing the housing bracket (11) of the housing (1), a semicircular groove (33) located an oval flange (34) is positioned in the 90 ° angle and on the outside of the hollow cylinder (32), at which boundary regions there are the ears (35) for the pull bars (6). Lock according to at least one of Claims 1 to 9, characterized in that the lever (5) has a rectangular extension (38) extending to the hollow cylinder (32) on the side of the flange opposite the semicircular groove (33) extending to the hollow cylinder (32). to the axis of the hollow cylinder (32), an opening (37) that also passes through the hollow cylinder and serves as a spring loaded ball (38) on the bearing bracket (11) of the housing (1), which matches the two locking openings. Lock according to at least one of Claims 1 to 10, characterized in that the extension (36) of the lever (5) enables unlocking by means of an internal hook (4) connected thereto. Lock according to at least one of Claims 1 to 11, characterized in that the inner hook (4) is rotatable in the unlocking direction opposite to the force of the return spring (509 by about 90 ° and consists of a rotary adapter (42) on the housing ( 1) and rotary handles (43). A lock according to at least one of claims 1 to 12, characterized in that the housing (1) has an axle (14) at the bottom (12) of the bearing bracket (14), which passes through a separate recess (47) in the bottom (44), thereby preventing the inner hook (4) from being actuated in terms of locking. Lock according to at least one of Claims 1 to 13, characterized in that the adapter (42) has a cylindrical nozzle (45) with a notch (48) above the bottom (449) into which the handle (36) extends ( 5) by serving once as an arm of the lever and once as a milestone for the inner handle (49. 15. A lock according to at least one of claims 1 to 14, characterized in that it is identical to a control device which indicates whether the lock is unlocked or locked.