JP2969263B2 - Lock type stopper for accessories - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has the shape and function of a padlock, and is used as a stopper for accessories such as necklaces, pendants, bracelets and the like, and also becomes a decorative article by itself, such as rings, earrings and brooches. The present invention relates to a lock-type stopper for an accessory used in a computer.

[0002]

The padlock itself has a taste as a motif of an accessory, and can be used as a stopper by utilizing a stopping function. Therefore, it is desired to apply the padlock as an accessory. However, in order to apply it as a jewelry, it is necessary to make it extremely small in size, and the structure of an ordinary lock cannot be used as it is.

That is, in order to reduce the size, it is essential to simplify the structure. Since it only functions as a stopper, there is no need for a function to open only with a specific key as in a normal lock, and a new simple structure is required utilizing this point. In addition, the strength decreases when the size is reduced. For example, when the diameter of the key shaft is as thin as 1 mm or less, the key shaft is easily cut off. Therefore, a new structure that does not concentrate loads is essential.

[0004] Therefore, an object of the present invention is to obtain a very simple structure and a structure in which the concentration of the load is eliminated to make the lock hard to be broken in order to realize a small lock suitable as an accessory.

[0005]

That is, the present invention provides a case having a keyhole at a central portion, and a case provided at a lower portion in the case, with both ends extending upwardly on both sides in the case.
A spring that urges both ends inward, a latch shaft provided on one upper side of the case, a latch rotatably supported by the latch shaft, and a tip that opens and closes, and the latch and the case A stopper mechanism formed between the latches to prevent the latch from opening excessively; a notch formed inside the tip of the latch; and a lower portion formed integrally with the latch and substantially below the latch shaft in the case. And a spring contact portion formed on the outer surface of the base portion, in contact with one end of the spring, and pressed inward to open the latch, and a latch formed on the inside or lower end of the base portion, When approaching the open keyhole, it hits the operating part of the key and is retracted,
A key contact portion that allows free rotation of the key in both directions, a latch shaft provided on the other upper portion of the case, a latch rotatably supported by the latch shaft, and a spring formed at a lower outer side of the latch; A spring contact portion that is in contact with the other end and is pressed inward; a stopper mechanism formed between the latch and the case to prevent the latch from being excessively rotated by a spring; and an upper outer side of the latch. Formed when the tip of the latch is pushed in, retreats once and engages with the notch, and is formed at the lower inner side or lower end of the latch.
A lock stopper for a personal accessory, comprising: a key contact portion that is retracted by hitting an operation portion of a key, retreats a hook to open a latch, and allows the key to freely rotate in both directions by passing through the operation portion of the key.

[0006] In this configuration, a latch,
It has a simple structure using only the latch and one spring for urging the latch. Furthermore, the key can be unlocked by rotating the key in either direction, and can freely rotate in both directions, thereby eliminating the concentration of load.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

[0008] In the lock stopper 10 for personal ornaments, the case 11 has a heart-shaped plate shape as a whole, and is composed of two half cases 11a and 11b.
1a and 11b have edges 12a and 12b around the periphery, respectively, and form a space inside by joining them. In the center of one half case 11a of this case 11,
A key hole 15a for receiving the key 13 through the operating portion 14 is formed, and a hole 15b to be fitted through the tip of the key 13 is formed in the center of the other half case 11b. In addition,
It goes without saying that the outer shape of the case 11 can be arbitrarily selected according to design requirements.

The spring 16 is formed of a coil spring, is provided at a lower portion in the case 11, and is supported by being fitted on a spring shaft 17 extending between the half cases 11a and 11b. It has the property of extending upward and biasing inward together. As will be apparent from the operation described later, the spring 16 has a small amount of deformation. Therefore, instead of a normal spring material such as steel, the same material as the case 11 or the like, that is, an accessory material such as a gold alloy is used instead of a normal spring material such as steel. It is possible to avoid the occurrence of rust, corrosion and the like. The spring shaft 17 is formed integrally with the half case 11a, and its tip projects from the outer surface of the half case 11b and is caulked to connect and fix the two half cases 11a and 11b.

A latch shaft 20 is provided on the upper left side of the case 11 in FIGS.
b. The latch shaft 20 is formed integrally with the half case 11a, and the tip projects from the outer surface of the half case 11b and is caulked.
Are combined and fixed.

The latch 21 has an inverted U-shape, and its root is rotatably fitted and supported on the latch shaft 20, and its tip is located in the upper right portion of the case 11 or above the case 11 and opens and closes. . In the edges 12a and 12b of the case 11, gaps 22 and 2 for passing both ends of the latch 21 are provided.
2 'are formed respectively. The outer end 23 of the gap 22 on the base side of the latch 21 constitutes a stopper mechanism 24 for contacting the root of the latch 21 and preventing the latch 21 from being excessively opened. A notch 2 is provided inside the tip of the latch 21.
5 are formed.

A base 26 is formed integrally with the base of the latch 21 and extends substantially downward from the latch shaft 20. A spring contact portion 27 is formed on the outer surface of the base portion 26, and the spring contact portion 27 contacts one end 18 of the spring 16 bent in a substantially L shape, and is pushed inward to open the latch 21. To do. A key pad 28 is provided on the inside or lower end of the base 26.
When the latch 21 is opened and approaches the keyholes 15a and 15b, the surface is finished so as to be retracted when the operating portion 14 of the key 13 is rotated left or right.

A latch shaft 29 is provided on the upper right side of the case 11 in FIGS.
b. The latch shaft 29 is formed integrally with the half case 11a, and its tip projects from the outer surface of the half case 11b and is caulked.
Are combined and fixed.

The latch 30 is rotatably fitted on and supported by the latch shaft 29. A spring contact portion 31 is formed on the lower outer surface of the latch 30, and the spring contact portion 31 is in contact with the other end 19 of the spring 16 bent in a substantially L shape and is pushed inward. A projection 32 is formed on the outside of the latch 30 and a projection 33 is formed on the inside of the edge 12a of the half case 11a.
Stopper mechanism 34 that prevents excessive rotation due to
Is composed.

A hook 35 is formed on the upper outer side of the latch 30. When the tip of the latch 21 is pushed into the case 11, the hook 35 retreats once and the notch 25
And hold the latch 21 so as not to open. A key contact portion 36 is formed at the lower inner side or lower end of the latch 30 and is retracted when the operating portion 14 of the key 13 is rotated left or right, the hook 35 is retracted to open the latch 21, and The surface is made to pass through the operating portion 14 without stopping.

The lock stopper 10 for personal ornaments is, for example,
It is used for a necklace 37 shown in FIG. The necklace 37 is formed by suspending the key 13 at the center of the chain 38 and hooking both ends of the key 13 to the latch 21 of the stopper 10. The necklace 37 is detached by opening the latch 21 and separating both ends of the chain 38.

The lock-type stopper 10 for personal ornaments is formed in a small size, and the vertical length in FIG.
It is on the order of millimeters.

The lock stopper 10 for personal ornaments operates as follows. As shown in FIG. 1, with the latch 21 closed, the operating portion 14 of the key 13 is inserted into the keyhole 15 a,
When rotated leftward in FIG. 1, the operating unit 14 pushes the lower end portion of the key pad 36 of the latch 30, and rotates the latch 30 to attach the hook 35 to the latch 21 as indicated by the phantom line in FIG. 1. Remove from notch 25. Then, the latch 21 is urged to open by the spring 16,
Open to the state of FIG.

When the key 13 is further rotated left,
4 passes through the latch 30, and furthermore, the latch 21 is opened, so that the base 26 approaching the keyhole 15a is pushed by the upper part of the key pad 28 as shown by the phantom line in FIG. , Once retreat and pass. Thus, the operating section 14 makes one round. When further rotated, the latch 30
Is returned to the original position by the spring 16, but the operating portion can pass in the same manner as described above. That is, the key 13 can rotate freely to the left.

As shown in FIG. 1, with the latch 21 closed, the operating part 14 of the key 13 is inserted into the keyhole 15a,
When rotated to the right in FIG. 1, the operating unit 14 pushes the upper part of the key pad 36 of the latch 30, and as described above,
As shown by the imaginary line in FIG. 1, the latch 30 is rotated to remove the hook 35 from the notch 25 of the latch 21, and the latch 21 is opened.

When the key 13 is further rotated clockwise, the operating portion 1
In FIG. 4, as the latch 21 is open, the base 26 approaching the keyhole 15a is once retracted as shown by the phantom line in FIG. . When further rotated, the latch 30 is returned to the original position by the spring 16, but the operating portion can pass in the same manner as described above. Thus, the operating section 14 makes one round. That is, the key 13 can freely rotate to the right.

When closing the latch 21 from the open state, it is sufficient to simply push the tip of the latch 21 into the case. Then, the tip of the latch 21 once retracts the upper part of the hook 35 of the latch 30, and the hook 35 is engaged with the notch 25.

[0023]

As described above, the lock-type fastener for personal ornaments of the present invention has only three movable components, the latch, the latch, and the spring, and has a very simple structure. It is possible. In addition, the key operating portion can be unlocked even if it is rotated in either direction, and can be freely rotated without being stopped, so that a large load is applied with the rotation of the key. There is no part. Therefore, size reduction can be achieved without fear of damage.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a closed state according to an embodiment of the present invention.

FIG. 2 is a side sectional view of the same example in a closed state.

FIG. 3 is a front sectional view of the same example in an open state.

FIG. 4 is a front view of the same example in use.

[Explanation of symbols]

10: Lock-type stopper for accessories, 11: Case, 11a, 1
1b: half case, 12a, 12b ... edge, 13 ... key, 1
4 ... working part, 15a ... keyhole, 15b ... hole, 16 ... spring,
17 spring shaft, 18 tip, 19 tip, 20 latch shaft, 21 latch, 22, 22 'gap, 23 outer end, 24 stopper mechanism, 25 notch, 26 base, 27 ... Spring contact part, 28 ... Key contact part, 29 ... Latch shaft, 30 ... Latch, 31 ... Spring contact part, 32 ... Protrusion, 3
3 ... projection, 34 ... stopper mechanism, 35 ... hook, 36 ...
Key pad, 37 ... necklace, 38 ... chain.

Claims (1)

(57) [Claims] 1. A case having a keyhole at a central portion, a spring provided at a lower portion in the case, both ends extending upwards on both sides in the case, and both ends being biased inward; A latch shaft provided on an upper side of the latch, a latch rotatably supported by the latch shaft, and a tip end opening and closing; and a latch formed between the latch and the case,
A stopper mechanism for preventing the latch from being excessively opened, a notch formed inside the tip of the latch, a base formed integrally with the latch and extending substantially below the latch shaft in the case, A spring contact portion formed on the outer surface of the base and in contact with one end of the spring and pushed inward to open the latch, and formed inside or at the lower end of the base, the latch is open and close to the keyhole. At this time, a key contact portion which is retracted by hitting an operating portion of the key to allow free rotation of the key in both directions, a latch shaft provided on the other upper portion of the case, a latch rotatably supported by the latch shaft, A spring contact portion formed on the lower outside of the latch and in contact with the other end of the spring and pressed inward, and formed between the latch and the case to prevent the latch from being excessively rotated by the spring Do A stopper mechanism, a hook formed outside the upper part of the latch, which is retreated once and engages with the notch when the tip of the latch is pushed in, and a hook formed at the lower inner side or lower end of the latch, A key contact portion which is retracted by hitting the operating portion of the key by any rotation of the key, retracts the hook to open the latch, and allows the key to freely rotate in both directions by passing through the operating portion of the key. Lock stopper.