JP3225114U - End connector for string-shaped small articles and string-shaped small articles using the same - Google Patents

Abstract

An object of the present invention is to provide a string-shaped small article end connector that is excellent in operability, makes it easy to easily switch between connection and release, and can prevent accidental detachment. The socket includes a plug, a socket, and a cylindrical socket body having a plug insertion side as a front end, a sleeve slidable on an outer periphery thereof, and locking for locking the plug. A socket having a spherical body, a closing portion for closing a rear end side of the socket body, a spherical body holding member provided in the socket body, and a first elastic body between the closing portion and the spherical body holding body; The main body is provided with a guide hole 17, a first restricting means 15 located on the outer peripheral rear side of the socket main body and a second restricting means 16 located on the outer peripheral front side to restrict the sliding of the sleeve within a certain range, A second elastic body for urging the sleeve forward between the first regulating means and the sleeve, the locking sphere disposed in the guide hole, the sleeve provided with a guide portion on the inner surface on the front end side, and a plug; Is the ring-shaped recess 2 in the insertion portion 20 With. [Selection diagram] Fig. 1

Description

  The present invention relates to a novel connector for connecting the ends of small string-shaped articles such as necklaces.

Conventionally, as a configuration for connecting the ends of string-shaped small articles such as necklaces,
For example, a connector for connecting a decorative cord-like body, an outer shell member having a storage hole for an engaging body, an engaging body fitted inside the outer shell member, and an inner shell member. A pin for slidably holding the engaging body, and a hook for a decorative cord, wherein a tapered surface is formed in the storage hole, and a pin is inserted into the engaging body. A hole is formed at a position corresponding to the tapered surface while a hole is formed, a hole penetrating to the pin hole is provided, and a sphere is rotatably accommodated in the hole, and the engaging body and the guide body are provided between the engaging body and the guide body. 2. Description of the Related Art There is known a decorative cord-shaped connecting device provided with a spring body for urging the engaging body in a direction in which a spherical body is pressed against a tapered surface (for example, see Patent Document 1).

JP-A-9-84613

  In the invention according to the above patent document, when releasing the connecting tool, the operability is not sufficient because the engaging body must be pressed with the pin body attached. In addition, since the pin body is held by pressing using a tapered surface, it is inconvenient that switching between connection and release is difficult to understand, and the sense of quality is impaired. Furthermore, since the pin body is held by pressing using a tapered surface, if the pin body is pulled strongly, the pin body may come off.

  The present invention has been made in view of the above circumstances, and provides an excellent end connector for string-shaped small articles, which is excellent in operability, easy to understand connection and release switching, and can prevent accidental detachment. And the problem that the invention is trying to solve.

  The present invention is an end connector for a cord-shaped small article comprising a plug and a socket, wherein the socket has a cylindrical socket body having a front end on a side into which a plug is inserted, and a sliding body on an outer periphery of the socket body. A movable sleeve, a locking sphere for locking the plug, a closing portion for closing a rear end side of the socket body, and a socket-side cord-like body mounting portion provided on a rear end side of the closing portion; A sphere holder provided in the socket body to prevent the locking sphere from dropping into the socket body; and a first elastic body between the closing portion and the sphere holder. A guide hole that penetrates the peripheral wall on the front end side, wherein first and second restricting means located on the outer peripheral rear and outer peripheral front of the socket main body for restricting sliding of the sleeve to a predetermined range; And the first regulating means. A second elastic body for urging the sleeve forward is provided between the sleeve and the sleeve, the locking sphere is disposed in the guide hole, and the sleeve guides the locking sphere to an inner surface on a front end side. The plug is provided with a ring-shaped concave portion at the front end, and a plug-side string-like body mounting portion is provided at the rear end. When the socket and the plug are separated, the locking sphere holds the sphere. The body prevents entry into the socket body and keeps the state in contact with the guide portion of the sleeve. When the socket and the plug are connected, the locking sphere engages with the annular recess of the plug in the socket body. An end connector for a small string-shaped article, wherein the sleeve is configured to prevent the locking sphere from moving outward, is a means for solving the above problem.

  Also, in the present invention, on the premise of the above invention, the shape of the tip of the plug is a convex curved surface, the corresponding front surface of the sphere holder of the socket is a concave curved surface, and the tip of the plug and the sphere holder A string-shaped small article end connection device, characterized in that it comes into contact with the small object, as a means for solving the above problem.

  According to the present invention, the plug insertion portion is provided with a ring-shaped recess, and the locking sphere is fitted into the ring-shaped recess in the socket, and the state is fixed by the sleeve. Never come off. Then, when the sleeve is moved at the time of connection, it can be easily determined that the connection state is established.

  Also, when applied to a string-shaped small article, when connecting both ends of the string-shaped small article, it is only necessary to insert the plug into the socket, and when detaching, simply slide the sleeve to detach the plug. it can.

  On the premise of the above invention, the shape of the tip of the plug is a convex curved surface, the corresponding front surface of the sphere holder of the socket is a concave curved surface, and the tip of the plug is in contact with the sphere holder. Depending on the configuration, in addition to the above-mentioned effects, when the plug is inserted into the socket, the tip of the plug comes into contact within a certain range so as to fit into the sphere holding member, so that the plugging operation is stable and stable. It can be performed.

(A) An enlarged front view showing a partial cross section showing a plug in an end connector according to an embodiment of the present invention, and (b) a partial cross section showing a socket in an end connector according to an embodiment of the present invention. It is an enlarged front view. (A) An enlarged front view of a partial cross section showing a socket body in an end connector according to an embodiment of the present invention, (b) Part showing a closing portion in the end connector according to an embodiment of the present invention It is the enlarged front view and enlarged right side view which were made into the cross section. (A) An enlarged front view and an enlarged right side view, partially in section, showing a sphere holder in the end connector according to the embodiment of the present invention, and (b) a sleeve in the end connector according to the embodiment of the present invention. It is a longitudinal section enlarged front view and enlarged right side view showing FIG. (A) An enlarged front view of a partial cross-section showing a separated state of a socket and a plug in an end connector according to an embodiment of the present invention. (B) The tip of the plug is brought into contact with a sphere holder of the socket. It is the enlarged front view which made the state a partial cross section. (A) An enlarged front view of a partial cross-section showing a state in which the tip of a plug in an end connector according to an embodiment of the present invention is in contact with a locking sphere of a socket, and (b) an annular concave portion of the plug. It is the front view which was made into the partial section which shows the state (connection state) which locked the locking ball of the socket. (A) An enlarged front view of a partial cross section showing a connection state of a socket and a plug in an end connector according to an embodiment of the present invention, (b) Sliding (retreating) a sleeve in a connection state of the socket and a plug. FIG. 7C is an enlarged front view of a partial cross section showing a state in which the plug is retracted, and FIG. 7C is an enlarged front view of a partial cross section showing a state in which the locking sphere of the socket is in contact with the sphere holding portion. (A) An enlarged front view of a partial cross section showing a state in which a sphere holding portion of an end connector according to an embodiment of the present invention has moved to a guide hole and a guide portion, and (b) the socket in a state where a sleeve is retracted. FIG. 4 is an enlarged front view showing a state in which the plug and the plug are separated from each other in a partial cross section. (A) It is explanatory drawing which shows the state which connected the edge part of the necklace provided with the end connection part which concerns on the Example of this invention, (b) It is the explanatory view which shows the state which isolate | separated the edge part of the necklace.

Hereinafter, the end connector S for string-shaped small articles according to the present embodiment (hereinafter, simply referred to as “end connector” S) will be described. It should be noted that the present invention is not limited to the following embodiments, but extends to a design or the like that has been modified within the scope of the technical idea disclosed by the present invention.
In the description of the present invention, the end (direction) of the socket 1 and the plug 2 on the insertion side is referred to as a front end (front), and the other end (direction) is referred to as a rear end (rear).

  The end connector S according to the present embodiment includes a metal socket 1 and a plug 2. As shown in FIG. 8, the size of the socket 1 and the plug 2 in a connected state is about 5 mm in diameter and about 19 mm in length. It is a simple end connection tool.

  As shown in FIG. 1A, the plug 2 of the end connector S according to the present embodiment includes a cylindrical plug body 21 and a cylindrical insertion section 20 having a reduced diameter at the distal end side of the plug body 21. The insertion portion 20 has a configuration in which a distal end 23 of the insertion portion 20 has a convex curved surface (spherical portion), and a ring-shaped concave portion 22 is provided on a side surface. The rear end of the plug 2 has a mounting hole (plug-side cord-like body connecting portion 29) for fixing the cord-like body.

  As shown in FIG. 1B, the socket 1 of the end connector S according to the present embodiment includes a tubular socket body 10 and a tubular sleeve 3 slidable on the outer periphery of the socket body 10. A locking sphere 4 for locking the plug 2, a first restricting means 15 (step) and a second restricting means 16 (stop ring) for preventing detachment of the sleeve 3, and the socket body A closing portion 11 for closing the rear end side of the locking member 10; a sphere holding member 12 provided in the socket body 10 for preventing the locking sphere 4 from falling into the socket body 10; A first elastic body 13 (coil spring) provided between the body 12 and a second elastic body provided between the first regulating means 15 and the sleeve 3 and for urging the sleeve 3 forward; 14 (coil spring).

  As shown in FIG. 2A, the socket main body 10 includes a guide hole 17 that penetrates a peripheral wall on a front end side, and includes a female screw portion 101 on an inner peripheral surface on a rear end side. At a position slightly behind the guide hole 17, there is provided a reduced-diameter edge portion 102 in which the inner diameter of the socket body 10 is reduced by a certain length toward the front. The reduced-diameter edge 102 functions as a stopper for the sphere holder 12 to fall forward.

The outer peripheral surface is provided with a step 15 serving as the first regulating means, and the outer peripheral on the front end side is provided with a ring-shaped groove portion 18.
The ring-shaped groove 18 is provided with a retaining ring 16 serving as the second restricting means.

  As shown in FIG. 2A, the closing portion 11 has a male screw 110 on the outer periphery, and an elastic body holding portion 111 for holding a rear end of the first elastic body (coil spring) on a front surface. Prepare. On the rear surface, an operation unit 112 for rotating the closing unit 11 is provided.

  As shown in FIG. 3A, the sphere holding member 12 has an outer diameter substantially equal to the inner diameter of the socket body 10, and has a diameter-expanded portion 120 on the rear outer periphery which is larger than the front portion. . The front surface has a concave curved surface 122 along the convex curved surface of the distal end 23 of the insertion portion 20 of the plug 2, and the rear surface has a connecting portion 121 connected to the front end of the first elastic body 13. Have.

The first elastic body 13 has a rear end connected to the elastic body holding part 111 of the closing part 11 and a front end connected to the connecting part 121 of the sphere holding body 12.
The male screw part 110 of the closing part 11 is screwed with the female screw part 101 of the socket body 10 and is disposed at a position slightly in front of the rear end of the socket body 10.
The space formed at the rear end of the socket body 10 is the socket-side cord-like body connecting portion 19.

  In a state where the plug 2 is not inserted (hereinafter, referred to as a normal state), the first elastic body 13 is placed in a state where the enlarged diameter portion 120 of the sphere holding member 12 and the reduced diameter edge portion 102 of the socket body 10 are in contact with each other. As a result, the sphere holder 12 is urged forward, and the sphere holder 12 is in a position to close the guide hole 17.

  When the sphere holding body 12 is at the position where the guide hole 17 is closed, the locking sphere 4 is located in the guide hole 17 and the guide portion (ie, the state in which the locking sphere 4 protrudes outward from the guide hole 17). ).

  As shown in FIG. 3B, the sleeve 3 has a guide surface 31 for guiding the locking sphere 4 on the front end side of the sleeve body 30. A sliding surface 32 that slides with the socket body 10 is provided behind the guide surface 31. Further, behind the sliding surface 32, there is a step 301 (sleeve side step) in which the thickness of the sleeve body 30 is reduced.

  A second elastic body 14 (coil spring) is arranged between the step 15 (first regulating means) of the socket body 10 and the step 301 (sleeve side step) of the sleeve 3. In the normal state, the sleeve 3 is urged forward by the second elastic body 14, presses the locking sphere 4 protruding from the guide hole 17, and maintains the state where the locking sphere 4 is held. The step 15 regulates the movement of the sleeve in the backward direction via the second elastic body 14.

  When the plug 2 is inserted into the socket 1 having the above structure, the end face of the insertion portion 20 of the plug 2 and the front face of the sphere holding body 12 of the socket 1 come into contact as shown in FIG. As shown in (a), the sphere holding body 12 retreats as the plug 2 advances, and the locking sphere 4 comes into contact with the plug 2.

  As the plug 2 advances, the sleeve 3 acts to push the locking sphere 4 into the guide hole 17. When the plug 2 further advances, the locking sphere 4 fits into the annular concave portion 22 of the plug 2 as shown in FIG. The sleeve 3 is in contact with the retaining ring 16 as the second regulating means, and presses and fixes the locking sphere 4. In this state, the connection and fixing of the socket 1 and the plug 2 are completed.

Next, the release of the socket 1 and the plug 2 from the connected and fixed state will be described.
In the socket 1 and plug 2 in the connected and fixed state shown in FIG. 6A, the sleeve 3 is retracted as shown in FIGS. 6B and 6C (that is, the sleeve 3 is moved to the rear end side of the socket 1). Slide).

With the retreat of the sleeve 3, the contact between the locking sphere 4 and the sleeve 1 is released, and the locking sphere 4 becomes movable to the guide portion.
In this state, the plug 2 can be pulled out. When the plug 2 is pulled out, the sphere holder 4 is urged by the first elastic body 13, so that the sphere holder 4 follows the plug 2 while being in contact with the insertion portion 20 of the plug 2 as shown in FIG. I do.

  The locking sphere 4 separates from the insertion portion 20 of the plug 2 and comes into contact with the sphere holding portion 12 as shown in FIG. The locking sphere 4 is held by the sphere holding part 12 and the sleeve 3. In this state, the detachment between the plug 2 and the socket 1 is completed.

  As shown in FIG. 8, the string-shaped small article 5 (for example, a necklace or the like) according to the present embodiment has one end of the string-shaped body 50 fixed to the socket-side string-shaped body mounting portion 19 of the socket 1, The end is fixed to the plug-side cord-like body mounting portion 29 of the plug 2. With this configuration, the socket 1 and the plug 2 can be attached and detached, and the small string-like article can be used as an annular body.

  The string-like body 50 of the small string-like article 5 is fixed to the socket-side string-like body mounting portion 19 and the plug-side string-like body mounting portion 29 by various known mounting structures such as adhesion, crimping, and attachment. And these can be used in combination. It is also possible to use connecting parts. For example, a metal fitting having a male screw may be fixed to the end of the string-like body, and this may be screwed with a female screw provided on the socket-side string-like body mounting portion 19 or the plug-side string-like body mounting portion 29. it can.

  In the above embodiment, the structure is made of a metal material. However, the present invention is not limited to this structure. For example, a part of the component may be made of a synthetic resin or the like. By using a metal material, strength and a sense of quality can be imparted. In addition, by using a synthetic resin or the like, the manufacturing cost can be reduced.

  In the above embodiment, the configuration is such that three locking spheres are used on the same circumference, but the present invention is not limited to this configuration, and the number is not limited.

  In the above embodiment, the necklace is shown as an example of the small string-shaped article. However, in the present invention, the small string-shaped article is not limited to the above-mentioned necklace. It can be applied to string-shaped small articles.

DESCRIPTION OF SYMBOLS 1 Socket 10 Socket main body 101 Female screw part 102 Reduced-diameter edge part 11 Close part 110 Male screw part 111 Elastic body holding part 112 Operating part 12 Sphere holding body 120 Enlarged part 121 Connection part 122 Curved surface 13 First elastic body 14 Second elastic body 15 steps (first regulating means)
16 Retaining ring (second regulating means)
Reference Signs List 17 Guide hole 18 Ring-shaped groove 19 Socket-side cord-like body attaching part 2 Plug 20 Insertion part 21 Plug body 22 Ring-shaped concave part 23 Tip 29 Plug-side cord-like body attaching part 3 Sleeve 30 Sleeve body 301 Step (sleeve-side step)
31 Guide surface 32 Sliding surface 4 Locking sphere 5 String-shaped small article (necklace etc.)
50 String

Claims (3)

An end connector for a small string-shaped article comprising a plug and a socket,
The socket has a cylindrical socket body having a front end on a side where a plug is inserted,
A sleeve slidable on the outer periphery of the socket body, a locking sphere for locking the plug, a closing portion for closing a rear end side of the socket body, and a socket side provided on a rear end side of the closing portion. A cord-like body attaching portion,
A sphere holder provided in the socket body to prevent the locking sphere from falling into the socket body, and a first elastic body between the closing portion and the sphere holder.
The socket body includes a guide hole that penetrates a peripheral wall on a front end side,
A first regulating unit located on the outer periphery rear side of the socket main body and a second regulating unit located on the outer periphery front side to regulate the sliding of the sleeve within a predetermined range; A second elastic body for urging the sleeve forward in between,
The locking sphere is arranged in the guide hole,
The sleeve includes a guide portion for guiding the locking sphere on an inner surface on a front end side,
The plug has a ring-shaped concave portion at the insertion portion serving as a front end, and a plug-side string-shaped body attaching portion at the rear end side,
In the separated state of the socket and the plug,
The locking sphere is prevented from entering the socket body by the sphere holding body, and the state in which it comes into contact with the guide portion of the sleeve is maintained,
In the combined state of the socket and plug,
An end connector for a cord-shaped small article, wherein the locking sphere is locked with the annular recess of the plug in the socket body, and the sleeve prevents movement of the locking sphere outward.   The shape of the tip of the plug is a convex curved surface, the corresponding front surface of the sphere holder of the socket is a concave curved surface, and the tip of the plug is in contact with the sphere holder. The end connector for a cord-shaped small article according to claim 1. A cord-like small article provided with the cord-like small article end connector according to claim 1 or 2.

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