JPS6362625B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention comprises a guard bolt that is removable from a lock receiving housing in the unlocked position, and a cylindrical bolt that is rotatably mounted in a cylindrical hole drilled coaxially. The lock cylinder is composed of a cylindrical lock cylinder housing and a cylindrical core that is rotatable inside the housing, and the core of the lock cylinder is fixed to the cylindrical lock cylinder housing. A radial clamping member is provided, the radial clamping member being capable of limited movement within a groove-like opening formed in the lock cylinder housing and extending from the cylindrical outer surface of the lock cylinder housing. The invention relates to a bayonet lock which projects beyond the lock and is adapted to secure the lock against axial displacement in the lock-receiving housing in the protected position.

Known bayonet lock (German utility model no. 1672915)
As shown in Figures 5 and 6 of the accompanying drawings, the system consists of a protective part or a steel bolt a that is guided through the opening (between the spokes) of the vehicle wheel for sealing purposes. This steel bolt a is adapted to be received by lock-receiving housings c, d arranged in alignment on both sides of the wheel on the vehicle frame b, and a cylinder lock f provided at one end thereof. Due to lock receiving housing c
However, it is becoming more and more secure. In its assembly and operation, this cylinder lock f, which is preferably made of brass, is kept small in external dimensions for cost reasons. Steel bolt a inserted into lock receiving cylinder housing c, d
This means that the load capacity of these safety devices is very limited, as the dimensions must be suitable and cannot be increased due to the limited dimensions of the cylinder lock. The result is that Moreover, the load on steel bolt a is
The connection point of the steel bolt f in the cylinder housing of the cylinder lock f and the core of the rotatable lock cylinder f, which prevents the cylinder lock f against axial displacement in the lock receiving housing c. transmitted to the operatively connected clamping part. These embodiments provide only marginal protection against loads such as those encountered in the event of a rough blow. This is particularly evident in vehicles equipped with cast wheels and spokes with a very large cross section.

The invention has a simple construction, provides maximum stability against unlocking by unauthorized persons, and can be used in the same embodiment for vehicles of different dimensions and different spoke thicknesses. It is based on the problem of obtaining a safety device of the type mentioned at the beginning.

According to the invention, this problem is solved by the fact that the lock cylinder housing lies at least partially in the axially drilled cylindrical hole of the guard bolt, and that the guard bolt radiates in its cylindrical area. having an opening in the form of a slot for the directional clamping member, the clamping member projecting beyond the cylindrical outer surface of the guard bolt and engaging in a groove drilled in the lock receiving housing; It is solved by this.

An embodiment according to the invention provides that the guard bolt is mounted in the lock receiving housing on the vehicle frame within its entire longitudinal extent and in this way does not cause any force to the cylinder lock when force is applied. The object of the present invention is advantageously achieved in such a way that the load is picked up without any influence on the load. Despite the small external dimensions for the lock cylinder to be cost-effective, the cross-sectional area of the guard bolt can be increased independently of this as required by the stresses.

The portion of the lock cylinder housing, the enlargement, which houses the housing pin and pin spring, which are known mechanical elements in locks, and which extends through and beyond the circumferential outer surface of the guard bolt protects the lock cylinder. secured within the bolt to prevent the guard bolt from rotating within the lock receiving housing. An opening passing through the peripheral wall of a cylindrical hole drilled axially in the protective bolt, closed on all sides and extending circumferentially, is rotatably located inside the cylindrical hole. The interior of the lock cylinder housing of the received lock cylinder is adapted to be penetrated by a radial clamping member connected to the rotatable core, which when pierced causes the clamping member to: The circumference of the lock cylinder housing is additionally supported in the axial direction by the edge of the circumferential opening in the cylindrical jacket of the guard bolt, and in this way the clamping member is made of brass. This achieves the objective of being able to take up much greater stresses than previously known embodiments which are applied directly on the outer surface. Moreover, this opening and the tightening member restrain the lock cylinder within the guard bolt itself. The shape of the protective bolt, which has equal external dimensions over its entire longitudinal extent and is adjustable with a headed screw at its other end, is determined by the cost of production and the amount of pressure on the frame. This has a beneficial effect on the installation of the lock receiving housing. This is because, by adjusting the headed screw, the length of the guard bolt can be adjusted, so that stepped holes with tight dimensional tolerances are no longer necessary, as is the case with the known embodiments. Moreover, the clamping element additionally acts as a fastening means between the guard bolt and the lock cylinder.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings showing one embodiment thereof.

The plug-in lock according to the present invention is made up of a steel protective bolt (locking rod) 1 into which a lock cylinder 2 is inserted. through the wheel openings (between the spokes 3) and are adapted to be received by lock receiving housings 4 and 5 which are fixed in alignment on the vehicle frame parts 6 and 7. ing. In order to receive the lock cylinder 2, the protective bolt 1 is provided with a coaxial cylindrical hole 8 at a certain depth from one end surface thereof, as shown in FIGS. 1 to 3. A lock cylinder 2 having an outer diameter corresponding to the inner diameter of the lock cylinder 2 is rotatably housed in the lock cylinder 2. It is composed of an inserted cylindrical core 13.

In addition, the peripheral wall of the cylindrical hole 8 of the protective bolt 1 has an opening 9 that is closed on all sides and extends in the circumferential direction, as shown in FIG. A turned slot 10 is provided. In this way, the guard bolt 1 encloses the cylindrical lock cylinder housing 15 of the lock cylinder 2 over its entire (axial) length in its coaxial cylindrical bore 8. Also, the lock cylinder housing 15
It rotatably encloses a cylindrical core 13 within itself.

The lock cylinder housing 15 has a length of radial enlargement, as shown in FIGS. 1 and 2, for receiving a housing pin and pin spring (not shown), which are known as the mechanical elements of the actual lock. (blade) 11, but this enlarged part 1
1 penetrates through a slot 10 (Fig. 4) that is axially drilled in the circumferential wall of a cylindrical hole 8 coaxially drilled in the protective bolt 1 so as to match the size and shape of the enlarged part 11. Also, this enlarged part 11
is opened in the lock receiving housing 4 in the direction of the longitudinal axis from the end face of the portion of the protective bolt 1 surrounding the lock cylinder 2 by the portion protruding from the circumferential outer surface of the protective bolt 1. Groove 12 (second
This groove 12 extends to the side surface 9' near the bottom of the cylindrical hole 8 of the circumferential opening 9 made in the peripheral wall by the cylindrical hole 8 of the protective bolt 1. It is extending. Due to this arrangement of the enlarged part 11 of the lock cylinder housing 15 and the groove 12 of the lock receiving housing 4, the lock cylinder 2 and at the same time the guard bolt 1 are secured rotationally in the lock receiving housing 4.

Furthermore, a pin-shaped tightening member (protection member) 14 is firmly inserted in the radial direction into the cylindrical core 13 constituting the lock cylinder 2.
It is rotatable together with the core 13 (FIGS. 1 and 3). The tightening member 14 has a slot-shaped opening 16 extending in the circumferential direction of the lock cylinder housing 15.
(Fig. 3), and its radially outer part 17 also passes through the slot-shaped opening 9 of the protective bolt 1 (Fig. 1), which is circular. The circumferential extent corresponds to the rotational travel of the clamping members 14, 17 required for a lock operated by a key, and also the protection of the circumferential opening 9, as shown in FIG. The side faces 9' and 9'' perpendicular to the longitudinal direction of the bolt 1 are in close contact with the clamping members 14, 17.

In this way, the radially outer part 17 of the clamping element 14, which projects beyond the circumferential outer surface of the guard bolt 1, corresponds to the diameter of the pin-shaped clamping elements 14, 17 of the lock receiving housing 4. (FIGS. 1 and 3) and thus extends into a radial annular slot 18 having a width of A key is inserted into the hole and rotated by the key relative to the lock cylinder housing 15 to the position shown in FIGS. The core 13 of the lock cylinder 2 in the manner of
The tightening members 14 and 17 displace the protective bolt 1 from the locked position in the axial direction when the lock cylinder housing 15 is locked.
This serves for securing by engagement with the annular slot 18 of the lock receiving housing 4. Further, in this state, the enlarged portion 11 of the lock cylinder housing 15 is engaged with the groove 12 of the lock receiving housing 4, and therefore the lock cylinder housing 1
5 relative to the lock receiving housing 4 is not possible. Note that in this position, the key can be removed from the core 13 of the lock cylinder 2.
It is exactly the same as in the case of a conventional lock cylinder.

On the other hand, the end 19 of the protective bolt 1 on the side opposite to the lock cylinder 2 is made to match in shape with the cylindrical opening 20 of the lock receiving housing 5, and this end 19 has a screw 22. have, but
This screw 22 is brought into direct contact with its head 23 on the conical bottom 21 of the opening 20 of the lock-receiving housing 5 and has dimensions and dimensional tolerances between the lock-receiving housings 4 and 5. It can be rotated to compensate for differential differences. In this way it is ensured that an impact on the end of the guard bolt 1 which is provided with the locking cylinder 2 has no effect on the clamping members 14, 17.

To release the lock from the locked position as shown in FIG.
, relative to the lock cylinder housing 15 , the clamping members 14 , 17 integral with the core 13 pivot into the region where the groove 12 of the lock receiving housing 4 and the enlarged portion 11 of the lock cylinder housing 15 coincide. be done. The guard bolt 1 is now secured by the fastening members 14, 17 fixed to the core 13 passing through the groove 12 axially drilled in the lock receiving housing 4 in alignment with the slot 10 of the guard bolt 1. The core 13 of the lock cylinder 2 is then withdrawn from the housings 4 and 5, with the key still inserted, and placed in a tubular case or the like mounted on the vehicle in a known manner.

In order to block the wheels of the vehicle, the tightening member 1
The core 13 is pivoted by means of a key so that 4, 17 coincides with the enlarged part 11 of the lock cylinder housing 15 and is inserted through the opening of the wheel (between the spokes 3).
After the guard bolt 1 has been introduced into the lock receiving housings 4 and 5 and the tightening members 14, 17 have passed through the grooves 12 in the lock receiving housing 4,
It is introduced until it contacts the surface 18' of the groove 18 of the lock receiving housing 4. Note that at this time, the enlarged portion 11 of the lock housing 2 is connected to the lock receiving housing 14.
It is fitted into the groove 12 of. The clamping members 14, 17 are then pivoted into the grooves 18 by pivoting the core 13 of the lock cylinder 2 by means of a key, the core 13 being moved in exactly the same way as in conventional locks.
It is locked against the lock cylinder housing 15 and the key is removed. At the same time, the groove 18 is formed on its surface 1
8'' allows the groove 12 in the lock-receiving housing 4 to
limit the axial range of In this way, the installation of separate stops can be omitted.

[Brief explanation of drawings]

Figure 1 is a longitudinal front view showing the bayonet lock in the locked position with both lock receiving housings placed on the vehicle, Figure 2 is a side view thereof, and Figure 3 is taken along the - line in Figure 1. Vertical side view, Figure 4 is the 1st
FIG. 5 is a side view showing a part of the protective bolt shown in the figure, excluding the cylinder lock; FIG. 5 is a side view showing an example of a conventional bayonet lock installed; FIG. 6 is an enlarged front view of the part. 1...Protection bolt; 2...Lock cylinder; 4, 5
...Lock receiving housing; 8...Cylindrical hole; 9
... Circumferential opening; 10 ... Axial slot; 11
... Enlarged part; 12 ... Groove; 13 ... Cylindrical nucleus;
14, 17... Tightening member; 15... Lock cylinder housing; 16... Slot-shaped opening; 18... Annular slot; 19... Protective bolt end; 20... Opening; 22... Screw; 23...Head.

Claims (1)

[Scope of Claims] 1. A guard bolt that is removable from the lock receiving housing in the unlocked position, and a cylindrical lock cylinder that is rotatably attached to a cylindrical hole coaxially drilled in the guard bolt. The lock cylinder is composed of a cylindrical lock cylinder housing and a cylindrical core that is rotatable inside the housing, and the cylindrical core is provided with a keyhole. and a radially extending clamping member affixed thereto, the clamping member being capable of limited movement within a slot-like opening formed circumferentially in the lock cylinder housing. and projecting beyond the circumferential outer surface of the lock cylinder housing and adapted to retain the guard bolt against axial displacement in an annular slot formed in the lock receiving housing in the guard position. In a bayonet lock, the lock cylinder housing 15 is at least partially connected to the protective bolt 1.
the lock cylinder housing 15 has a radially projecting axially extending enlarged portion 11; , the enlarged portion 11 passes through an axial slot 10 drilled in the peripheral wall of the cylindrical hole 8 of the protective bolt 1, and the lock receiving housing 4.
and that the protective bolt 1 has circumferential openings 9 in the peripheral wall of its cylindrical hole 8 for radial clamping members 14, 17. What is being done and tightening member 1
4, 17 protrude beyond the circumferential outer surface of the protective bolt 1, the tightening members 14, 17 engage with annular slots 18 drilled in the lock receiving housing 4, and the lock receiving housing 4. A plug-in lock characterized in that a groove 12 formed in the axial direction of the lock extends to an annular slot 18. 2. Claims in which the surfaces 9', 9'' of the circumferential opening 9 of the protective bolt 1, which bound the protective bolt 1 transversely to the longitudinal direction, are in close contact with the clamping members 14, 17. The plug-in lock according to claim 1. 3. The slot-shaped opening 16 formed in the circumferential direction of the lock cylinder housing 15 corresponds to the circumferential opening 9 of the protective bolt 1.
Or the plug-in lock described in Section 2. 4. The insert type lock according to claim 3, wherein the front end surface of the peripheral wall of the cylindrical hole 8 of the protection bolt 1 is flush with the front end surface of the lock cylinder housing 15. 5 The radially enlarged portion 11 of the lock cylinder housing 15 houses the housing pin and pin spring as mechanical elements of the lock, and the enlarged portion 11
5. A bayonet lock according to any one of claims 1 to 4, wherein the lock lies within the axial slot 10 of the guard bolt 1 and projects beyond the circumferential outer surface of its peripheral wall. 6. The plug-in lock according to claim 5, wherein the axial slot 10 of the protective bolt 1 is open at the front end. 7 The enlarged portion 11 of the lock cylinder housing 15 that protrudes beyond the circumferential outer surface of the peripheral wall of the cylindrical hole 8 of the protective bolt 1 matches the axial groove 12 of the lock receiving housing 4 in its shape. A plug-in lock according to any one of claims 1 to 6, wherein the lock is configured as follows. 8 one surface 18' of the annular slot 18 of the lock receiving housing 4 provided for the clamping members 14, 17 coincides with the axial extension of the axial groove 12 of the lock receiving housing 4; Also, when inserting the protective bolt 1, the tightening member 1
4, 17 are brought into contact with said surface 18';
8. A bayonet lock according to claim 7, which forms a stop against displacement of the guard bolt 1, so that no other stop is necessary. 9 An adjustable screw 22 is arranged in the end 19 of the guard bolt 1 opposite the lock cylinder 2, which screw 22 with its top 23 extends through the opening 20 in the lock receiving housing 5. The bayonet lock according to any one of claims 1 to 8, wherein the protective bolt 1 is brought into close contact with the bottom of the housing when the protective bolt 1 is in the closed position. 10 A lock-receiving housing 4 is arranged in a frame 6 of a vehicle, in particular a bicycle, and a protective bolt 1
can be pushed through the openings of the wheel, in particular between the spokes 3, and the lock cylinder housing 1
The region of the end 19 of the guard bolt 1 lying opposite 5 lies in the opening 20 of the second lock receiving housing 5 fixed on the frame 7. The insert lock according to any one of the ranges 1 to 9.