JPH04101616U - chain stopper - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a chain stopper that can easily connect both ends of a chain. [Structure] Push down the push tube 38 which is urged from the narrow diameter part 33 toward the large diameter part 34 by the biasing spring 39,
After the horseshoe plate 40 is engaged with the narrow diameter portion 33, the push tube 38 is returned to fix the horseshoe plate 40 between the stopper protrusion 37 and the push tube 38.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is used for chain fasteners, especially chain accessories such as bracelets and necklaces. It is a chain stopper that engages the jointer and plate to connect both ends of the chain. related.

0002

[Conventional technology]

The chain stopper that connects both ends of chain accessories such as bracelets and necklaces is shown in Figure 3. The pull ring type shown in Figure 4 and the hook type shown in Figure 4 are the most commonly used. It is being

0003 That is, the pull-ring chain stoppers are located at both ends of the chain 10 as shown in Figure 3a. It consists of a pull ring 12 and a perforated plate 14. This pull ring 12 is the opening/closing part 1 6, and this opening/closing part 16 has a pull shaft 18 that is opened by pulling the pull pin 17. It can be opened by being stored in the pull ring 12. This state is shown in Figure 3. b, the perforated plate 14 is hung on the opening/closing part 16 opened in this way. Then, when the opening/closing part 16 is closed, the pull ring 12 is opened as shown in FIG. 3c. and the perforated plate 14 are engaged, so that both ends of the chain 10 are connected. It becomes.

0004 On the other hand, in the hook-type chain stopper, as shown in FIG. 4a, the hook 20 is The hook portion 22 is opened and the grid plate 24 is secured thereto, as shown in Figure 4b. As shown, the grid plate 24 and the hook 20 are engaged and both ends of the chain are connected. It will be done.

[0005]

[Problem that the idea aims to solve]

However, when using these traditional chain stops, this chain stop Difficulty in engaging. For example, in a pull ring type chain stopper, the chain stopper 12 opening/closing part 16 must be kept open for a while, and for this reason , it can be difficult to manipulate these and connect the two ends of the chain, especially if you are not used to it.

[0006] Also, with bracelets, etc., you cannot use one hand and must operate the device with only one hand. Even experienced users may find this connection operation difficult.

[0007] This invention was created in view of the above issues, and its purpose is to The object of the present invention is to provide a chain stopper whose ends can be easily connected.

[0008]

[Means to solve the problem]

In order to achieve the above objectives, the chain stopper of the present invention Both ends of the chain can be attached and detached by engaging the jointers and plates installed at both ends of the chain. In chain stoppers connected to A movable push tube installed on top, and a movable push tube that moves from the small diameter part of the receiving shaft to the large diameter part. a biasing spring that biases the plate toward the narrow diameter portion of the receiving shaft; a horseshoe-shaped plate having an opening sized between the diameter of the large diameter portion and the diameter of the large diameter portion; The horseshoe-shaped plate attached to the narrow diameter part of the receiving shaft is pushed forward by the push tube. By biasing toward the large diameter part and parking it in the large diameter part, the jointer and The chain is characterized in that both ends of the chain are removably connected by engaging with the plate.

[0009]

[Effect]

In the chain stopper of the present invention having the above-mentioned structure, the The attached horseshoe-shaped plate is attached to the large diameter part of the receiving shaft by the push tube on the receiving shaft. is forced towards. Then, this horseshoe-shaped plate is the same as the diameter of the small diameter part of the receiving shaft. It has an opening with a size between the diameters of the large diameter part, so the small diameter part can be easily attached and detached. However, if the horseshoe plate is parked on the large diameter part, it will not come off the receiving shaft. It becomes impossible to let go. In this way, the jointer and plate are connected. As a result, both ends of the chain are removably connected.

0010

【Example】

FIG. 1 is a perspective view of the main parts showing the structure of the chain stopper according to the present invention. Figure out of these 1a shows the first embodiment according to the present invention, and FIG. 1b shows the second embodiment according to the present invention. This shows an example.

[0011] In the first embodiment of the chain stop in FIG. 1a, the jointer 30 is connected to the chain 10. It consists of a joint part 31 and a receiving shaft part 32, to which are joined. This receiving shaft part 3 2 consists of a small diameter part 33 and a large diameter part 34, and the large diameter part 34 has a horseshoe-shaped diameter. It includes a large diameter end portion 36 that is larger than the diameter of the shaft through hole 42 of the seat 40. On the other hand, the reception A push tube 38 is installed on the shaft portion 32 and is freely movable thereon. stop Therefore, this push tube 38 is always kept in a narrow position by a biasing spring 39 installed inside the push tube 38. A force is applied from the diameter portion 33 toward the large diameter portion 34 .

0012 On the other hand, the horseshoe-shaped plate 40 is a shaft through which the receiving shaft portion 32 of the jointer 30 is passed. It has a through hole 42 and an opening 44 into which the receiving shaft portion 32 is inserted. This opening The size of the mouth portion 44 is a horseshoe shape smaller than the inner diameter of the shaft hole 42. And open The size of the mouth portion 44 is larger than the outer diameter of the narrow diameter portion 33 of the jointer 30. It is set smaller than the diameter of 4. For this purpose, the horseshoe-shaped plate 40 is The diameter part 33 is removable, but the large diameter part 34 is not removable. There is no existence. Furthermore, the inner diameter of this shaft through hole 42 is larger than the diameter of the large diameter portion 34. Since the horseshoe-shaped plate 40 on the receiving shaft portion 32 is set to be It can be moved from the narrow diameter portion 33 to the large diameter portion 34 using the same steps. However, horseshoe pre The inner diameter of the shaft hole 42 of the shaft 40 is set smaller than the diameter of the large diameter end 36. Therefore, the horseshoe plate 40 will not come off in the axial direction. Also, the push tube 38 Since the diameter is designed to be larger than the inner diameter of the shaft hole 42, the horseshoe-shaped plate 40 can be fixed between the large diameter end 36 and the push tube 38.

[0013] By the way, in the second embodiment shown in FIG. 1b, the axial direction of the horseshoe plate 40 is A stopper protrusion 37 is installed in place of the large diameter end 36 that prevents the direction from coming off. ing. Therefore, although the shape is different, the same effect as in the first embodiment can be obtained. I can do it.

[0014] FIG. 2 is an explanatory diagram illustrating the operation of the chain stopper according to the present invention using a second embodiment. be. Here, FIG. 2a shows before the jointer 30 and the horseshoe plate 40 are engaged. FIG. 2b shows the state in which the jointer 30 and the horseshoe plate 40 are engaged. Therefore, the push tube 38 is pushed down and the narrow diameter portion 33 is exposed.

[0015] That is, as shown in FIG. 2b, the push tube 38 is pushed down and the narrow diameter portion 33 Once exposed, it becomes possible to attach the horseshoe plate 40 here. Then, the narrow diameter portion 33 is introduced into the shaft hole 42 of the horseshoe-shaped plate 40.

[0016] As described above, the horseshoe plate 40 is attached to the narrow diameter part of the jointer 30. When the force pushing down the push tube 38 is weakened, the push tube 38 is released by the biasing spring. 39, the horseshoe-shaped plate 40 is pushed back by the action of the large diameter portion 34. It will be parked in the area. FIG. 2c shows this state. At this time, the opening Since the diameter of the portion 44 is smaller than the diameter of the large diameter portion 34, the jointer 30 It is not possible to remove the horseshoe plate 40. Moreover, the large diameter portion 34 A stopper protrusion 37 is installed, and the diameter of the push tube 38 is equal to the inner diameter of the shaft through hole 42. It is designed to be larger than the diameter. Therefore, the horseshoe-shaped plate 40 is removed in the axial direction. The horseshoe-shaped plate 40 is connected to the stopper projection 37 and the push tube 38. It can be fixed between

[0017] However, in reality, the chain stopper of this second embodiment is used to connect both ends of the chain. To do this, an opening in the horseshoe plate 40 is inserted into the insertion portion 50 shown in Figure 2a. 44 is applied, and a force is directly applied in the direction of arrow 52. Then, with that power As the push tube 38 is pushed down, the narrow diameter portion 33 of the jointer 30 is exposed, The receiving shaft portion 32 passes through the shaft through hole 42 . Next, the force pushing down this push tube 38 is When weakened, the action of the biasing spring 39 causes the horseshoe-shaped plate 40 to move toward the large diameter portion 34. direction, resulting in the state shown in Figure 2c, where both ends of the chain are connected. Become so.

[0018] In addition, in this embodiment, the shaft hole 42 of the horseshoe-shaped plate 40 and other joints are The receiving shaft and joints of the center 30 are all circular; It is not limited to shape. In other words, these can be transformed into polygons such as quadrilaterals and pentagons. It may be rectangular, and the narrow diameter portion 33 can be inserted into the shaft hole 42 through the opening 44. Therefore, when both ends are connected, the large diameter portion 34 does not come out through the opening 44. Also, the dimensions are set such that the horseshoe-shaped plate 40 can be prevented from coming off in the axial direction. It's fine as long as it's measured.

[0019] Furthermore, in this embodiment, the large diameter end portion 36 and the stopper protrusion 37 are used. Although the horseshoe-shaped plate 40 is prevented from coming off in the axial direction, the shaft of the horseshoe-shaped plate 40 is Means for preventing direction slippage are not limited to these, but may be used It is preferable that the design corresponds to the design of the ornament to be used.

[0020]

[Effect of the idea]

In the chain stopper according to the present invention configured as described above, both ends of the chain can be easily secured. It becomes possible to connect them.

[Brief explanation of drawings]

FIG. 1 is a perspective view of main parts showing the structure of a chain stopper according to the present invention.

FIG. 2 is an explanatory diagram illustrating the operation of the chain stopper according to the present invention.

FIG. 3 is an explanatory diagram illustrating the operation of a conventional chain stopper (pulling type).

FIG. 4 is an explanatory diagram illustrating the operation of a conventional chain stopper (hook type).

[Explanation of symbols]

10 chain 30 Jointer 31 Joint part 32 Receiving shaft part 33 Narrow diameter part 34 Large diameter part 36 Large diameter end 37 Stopper protrusion 38 Push pipe 40 Horseshoe plate 42 Shaft through hole 44 Opening

Claims (1)

[Scope of utility model registration request] 1. A chain stopper that has a jointer and a plate at both ends of a chain, and engages the jointer and the plate to removably connect both ends of the chain, wherein the jointer has a small diameter part. a receiving shaft consisting of a large diameter portion and a large diameter portion; a push tube installed on the receiving shaft and moving over the small diameter portion and the large diameter portion; and a push tube that moves from the small diameter portion to the large diameter portion of the receiving shaft. the plate is a horseshoe-shaped plate having an opening having a size between the diameter of the small diameter portion and the diameter of the large diameter portion of the receiving shaft; The horseshoe-shaped plate attached to the small diameter portion of the shaft is urged toward the large diameter portion by the push tube and parked at the large diameter portion, thereby engaging the jointer and the plate. , a chain stopper characterized by detachably connecting both ends of the chain.