JPH0531174Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention is based on a lock box that has a flat storage space for accommodating a lock mechanism between the front and back side members at one end of the lock box.
A flexible locking rod made of wire or the like is provided with an opening/closing portion of the lock that enters from the side, and the other end is provided with a keyhole into which a predetermined key is inserted, a fixed end of the flexible locking rod, and the inside of the keyhole. A fulcrum shaft is provided in the fulcrum shaft, and the tip of the fulcrum shaft is allowed to swing freely through a slit provided on one side of the opening/closing part of the lock, and the entrance of the opening/closing part is connected to the locking mechanism. This invention relates to a bicycle lock with a pivoting lock lever for opening and closing.

Prior Art This type of bicycle lock configured as described above is
For example, it is used as a wire lock or a chain lock to tether a bicycle to a fixed object or to lock a tire so that it cannot rotate.

Problems to be Solved by the Invention The bicycle lock of the prior application has a locking lever that opens and closes the opening/closing part of the lock that locks the wire, etc., and also engages with the inner end of the key that is inserted into the keyhole. The stop lever, which converts the unlocking operation of the lock lever into the unlocking operation of the locking lever, is provided so as to be able to slide freely via a separate fulcrum shaft, which complicates the structure of the lock, increases costs, and reduces the overall cost. The disadvantage was that it was long.

Means for Solving the Problems Therefore, the present invention has a lock box with a flat storage space for accommodating a lock mechanism formed between the front and back side members, and a flexible locking rod made of wire or the like on one end of the lock box. A lock opening/closing part that can be entered from one side is provided, a keyhole into which a predetermined key is inserted, and a fixed end of the flexible locking rod are provided at the other end, and a fulcrum shaft is provided inside the keyhole, and the fulcrum shaft has a In a bicycle lock, the tip of which swings freely out of a slit provided on one side of the opening/closing part of the lock, and a locking lever that opens and closes the entrance of the opening/closing part in conjunction with the locking mechanism is pivotally mounted. , the locking lever is provided with an engaging portion for engaging the key, and the locking lever is opened using the fulcrum shaft as a fulcrum by a swinging operation of the key inserted through the keyhole and engaged with the engaging portion. To provide a bicycle lock characterized in that it is configured to perform a locking operation.

Function In the bicycle lock of the present invention configured as described above, the unlocking operation of the locking lever is performed directly by the rocking operation of the key inserted through the keyhole, and the locking lever is placed between the key and the locking lever. It is possible to eliminate the drawbacks of the conventional product in which a stopper lever is provided.

Embodiments Examples of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes a flat lock box consisting of two side members ab, front and back, which form a thin, dish-shaped symmetrical shape with their peripheries overlapping each other, as shown in figure 2;
Reference numeral 2 denotes a storage space similarly formed flat to accommodate the lock mechanism 3 in the lock box 1, and 4 is provided in the shape of a hook at one end of the lock box 1 (on the right side in the figure) from an entrance 4' that opens to the side. 5 is an opening/closing part of the lock into which a flexible locking rod Y made of wire or chain is inserted; 5 is a keyhole provided at the other end of the lock box 1 and into which a key K having a predetermined shape as shown is inserted; A fulcrum shaft 7 provided inside the keyhole 5 is pivoted to the fulcrum shaft 6, and its tip is allowed to swing freely through a slit 8 provided on one side of the opening/closing portion 4 of the lock, and is linked to the lock mechanism 3. and the opening/closing part 4
9 is a restoring spring that always urges the locking lever 7 in the closing direction, and Y' is the fixed end of the flexible locking rod Y provided at the other end of the lock box 1. The locking mechanism 3 includes a plate spring 3a which is provided with a lifting pawl 10 in the center, which is fixed to the inner surface of one side member a on the back side of the locking lever 7, and one corner of this plate spring 3a (lower right corner in the figure). an elastic check piece 3b formed by bending the elastic check piece 3b; and a bent piece 3c formed on the side edge of the lock lever 7 so as to abut against the elastic check piece 3b and prevent rotation of the lock lever 7 in the unlocking direction. It consists of.

Reference numeral 11 denotes an engagement portion with a key K formed on the side surface of the tip side by bending the locking lever 7 so that it is higher on the fulcrum shaft 6 side and lower on the tip side as shown in FIG. 2, and 12 is the locking lever mentioned above. This is the insertion gap for the key K formed between the back surface of the locking lever 7 on the fulcrum shaft side and the leaf spring 3a by bending the key K. 1st, 3rd
As shown in the figure, the keyhole 5 is inserted into the insertion gap 1.
The key K inside 2 is in a position where it engages with the fulcrum shaft 6 and the driving pawl 10, and at the same time pushes down the elastic check piece 3b to open the locking mechanism 3, the inner surface of the tip is pressed against the locking lever. It is brought into contact with the engaging portion 11 of No. 7. Therefore, when the outer end of the key K is rotated counterclockwise in the figure in the inserted state, the locking lever 7 is integrally rotated in the same direction via the engaging portion 11, and the opening/closing portion 4 of the previously closed lock is rotated. The inlet 4' of the inlet 4' is opened.

Note that in the state shown in FIGS. 1 and 3 when the key K is inserted, the locking mechanism 3 is open as described above, so the flexible locking rod Y is closed as shown by the solid line in FIG.
If the key is located outside the entrance 4' of the opening/closing part 4 of the lock, hold the flexible locking lever Y and push it against the restoring spring 9 to the position indicated by the phantom line in the figure, and then remove the key K. The elastic check piece 3b returns and the locking lever 7
Can be locked and prevents reverse rotation.

Effects of the Invention According to the present invention configured as described above and used as described above, the swinging operation of the key performed when opening the lock directly locks the lock via the engaging portion that engages with the key. Since the power is transmitted to the unlocking action of the lever, it is possible to eliminate the need to install a stop lever like in conventional products.
Cost can be reduced by simplifying the lock structure. Also,
The overall length of this type of lock can also be shortened, which has the practical effect of making it easier to use.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway plan view of an embodiment of the present invention;
FIG. 2 is an exploded perspective view of the same lock structure as above, and FIG. 3 is a partially cutaway plan view of the embodiment. 1...Lock box, ab...Side member, 2...Accommodating space, 3...Lock mechanism (3a...plate spring, 3b...elastic check piece, 3c...bending piece), 4...opening/closing part,
4'... Entrance, 5... Keyhole, 6... Fulcrum shaft, 7...
... Lock lever, 8 ... Slit, 9 ... Restoration spring, Y ... Flexible locking rod, Y' ... Fixed end, 10 ...
...Elevating pawl, 11...Engagement portion, 12...Key insertion gap.

Claims (1)

[Scope of utility model registration request] A lock opening/closing portion 4 into which a flexible locking rod Y made of wire or the like enters from the side is inserted into one end of a lock box 1 which has a flat accommodation space 2 for accommodating a lock mechanism 3 between the front and back side members ab. A keyhole 5 into which a predetermined key K is inserted, and a fixed end Y' of the flexible locking rod Y are provided at the other end, and a fulcrum shaft 6 is provided inside the keyhole 5. , a locking lever 7 whose tip extends swingably from a slit 8 provided on one side of the opening/closing part 4 of the lock, and which opens and closes the entrance 4' of the opening/closing part 4 in conjunction with the locking mechanism 3; In the bicycle lock in which the locking lever 7 is provided with an engaging part 11 for engaging the key K, the key K inserted through the keyhole 5 and engaged with the engaging part 11 can be swung. Therefore, the bicycle lock is characterized in that the locking lever 7 is configured to perform an unlocking operation using the fulcrum shaft 6 as a fulcrum.