JP4129568B2 - Bicycle ring lock - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
According to the present invention, a base lock member and a cover member covering the base member are integrally coupled to each other, and a substantially arc-shaped hollow lock body formed with a pair of left and right openings facing each other at the lower end, and an operation knob are provided. The present invention relates to a bicycle ring lock provided with a similarly arc-shaped lock rod that protrudes out of the body and is slidably fitted into a lock body together with a traction spring, and a stopper that latches the lock rod in a locked position. Therefore, it is characterized in that the lock is made difficult to be illegally destroyed by strengthening the opening of the lock body through which the lock rod is inserted during locking.
[0002]
[Prior art]
A conventional ring lock of this type is formed by superposing an upper mold (cover member) on a lower mold (base member) as in the prior application of the present applicant, for example, a bicycle ring lock disclosed in Japanese Patent Laid-Open No. 8-120994. A hollow lock body having a substantially arc shape is formed, and a pair of left and right openings through which the lock housing is inserted at the time of locking are opposed to each other at the lower end of the lock body.
[0003]
[Problems to be solved by the invention]
The problem to be solved by the present invention is to eliminate the defect of the opening provided as described above, and by a structure in which a cover member having a U-shaped cross section is similarly coupled to a base member having a U-shaped cross section. The purpose is to reinforce the opening so as to sufficiently withstand the destruction by eliminating the low strength.
Particularly in recent years, for example, a molded product such as a resin is frequently used for the cover member, and it is necessary to compensate for a decrease in strength of the material forming the opening.
[0004]
[Means for Solving the Problems]
Therefore, in order to solve the above problems, the present invention is a substantially arc-shaped hollow body in which a base member and a cover member that covers the base member are integrally coupled to each other, and a pair of left and right openings are formed facing each other at the lower end. The lock body that makes up the door, the control knob protrudes outside the body, the same arc-shaped lock rod that is slidably fitted into the lock body together with the traction spring, and the lock rod is hooked at the lock position. In the bicycle ring lock provided with the stopper , a standing piece that stands up from the base member and forms a rib on the inner peripheral surface of the pair of left and right openings and acts like a column is overlapped with the standing piece. The bicycle is characterized in that an upright piece extending from the cover member and an insertion port of the lock rod provided in common to both upright pieces are provided, and the base member is a metal plate base member. A ring lock is provided.
[0005]
[Means for Solving the Problems]
The ring lock of the present invention configured as described above is overlaid on a standing piece that rises from the base member and forms a rib on the inner peripheral surface of a pair of left and right openings and acts like a column. Since the upright piece extended from the cover member and the insertion hole for the lock provided in common with the upright pieces are provided, the base member is a metal plate base member. It has a structure with enough strength to withstand impacts.
[0006]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
In the figure, reference numeral 1 denotes a lock body in which a base member a and a cover member b are coupled to each other in a plane direction in the same manner as a conventionally known ring lock, and integrated into a substantially arc-shaped hollow body; Is a similarly known arc-shaped lock rod in which the operation knob 3 is exposed outside the container and is slidably fitted into the lock body 1.
[0007]
4 is a pulling spring which is attached to the lock rod 2 and the lock body 1 at its ends and always pulls the lock rod 2 in the pulling direction, and 5 is a conventionally known ring lock with a lock mechanism and an urging spring not shown. Similarly, when the lock rod 2 is advanced to the lock position as indicated by an imaginary line in FIG. 1, it acts on the biasing spring to hook the rear end of the lock rod 2 and pull it. A stopper that holds the locked state of the ring lock against the spring 4.
[0008]
6a and 6b are a pair of left and right openings formed at the lower end of the lock body 1 so as to face each other. As shown in FIG. 2, the openings 6 a and 6 b have an upright piece 7 raised from the end of the base member a, and an inner periphery of the end of the cover member b so as to overlap the upright piece 7. It is comprised by the standing piece 8 extended from the surface, and the insertion opening 9 of the lock rod 2 provided in common with both the standing pieces 7 and 8. FIG.
[0009]
As shown in FIG. 1, the opening portions 6a and 6b of the ring lock configured as described above are formed with ribs on the inner peripheral surface of the opening portion, as shown in FIG. Because it acts as a column and a partition, it has sufficient strength, and unlike conventional locks with U-shaped facing each other, it is not damaged by normal impact etc. The structure can withstand enough.
[0010]
Note that the openings 6a and 6b according to the present invention may be provided only on one of the right sides in the figure where the front end of the lock rod 2 is fitted during locking, in addition to the case where the openings 6a and 6b are provided facing each other as shown in the embodiment. .
[0011]
In the embodiment, a metal plate base member a is used and a resin molded product is used for the cover member b. However, in implementing the present invention, the material and shape of the base member a and the cover member b, the stopper 5 and Needless to say, the structure and the like of the locking mechanism and the urging spring related thereto can be appropriately changed in accordance with the gist of the present invention.
[0012]
【The invention's effect】
As described above, according to the ring lock of the present invention that is configured by the double upright pieces that overlap the openings and the insertion opening that is provided in common, the opening has a sufficiently strong structure. As a result, it is possible to prevent illegal damage and destruction, and the locking reliability is improved. The present invention has excellent effects as described above.
[Brief description of the drawings]
FIG. 1 is a partially cutaway front view showing an embodiment of the present invention. FIG. 2 is an enlarged partially cutaway sectional view of an opening.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lock main body a Base member b Cover member 2 Lock lever 3 Operation knob 4 Traction spring 5 Stopper 6a Opening part 6b Opening part 7 Standing piece 8 Standing piece 9 Insertion opening

Claims (1)

The base member and the cover member that covers the base member are integrally joined to each other, and a lock body that forms a substantially arc-shaped hollow body that is formed with a pair of left and right openings facing each other at the lower end, and the operation knob is exposed to the outside of the body. A bicycle ring lock comprising a similarly arc-shaped lock rod that is slidably fitted in a lock body together with a traction spring and a stopper that latches the lock rod in a locked position. A standing piece that rises from the member and forms ribs on the inner peripheral surfaces of the pair of left and right openings and acts like a column; and a standing piece that extends from the cover member so as to overlap the standing piece; A bicycle ring lock characterized by comprising an insertion port for the lock rod provided in common to both upright pieces, and the base member being a metal plate base member .

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