JP3780497B2 - Synthetic resin buckle - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a synthetic resin buckle that can reliably and easily attach and detach belt ends.
[0002]
[Prior art]
Conventionally, as a synthetic resin buckle for connecting and detaching the belt end portions, a part of the engaging claw of the plug protrudes as a pressing portion on both sides of the socket (hereinafter referred to as Prior Art 1), and in particular. A synthetic resin buckle disclosed in Kaihei 8-56710, that is, a synthetic resin buckle (hereinafter referred to as Prior Art 2) having a structure in which a push lever for detaching the plug and the socket is provided on the socket side. It is known.
[0003]
[Problems to be solved by the invention]
In general, a synthetic resin buckle has the advantage of being light weight and low cost of a synthetic resin material, while using a slightly flexible synthetic resin to ensure sufficient practicality as a connector. There is a need. That is, it is desirable that there is sufficient safety, that the inadvertent detachment of the plug and the socket does not occur, and that the attachment / detachment operation is easy.
[0004]
The synthetic resin buckle according to the prior art 1 is very firmly connected in the engaged state and does not cause inadvertent detachment of the plug and the socket. The pressing part that protrudes on both sides is gripped with the thumb and forefinger from both sides and pressed inward very strongly, and the operation of pulling the socket away from the plug must be performed while maintaining the pressed state. It was a thing.
[0005]
In addition, when the detachment is performed, the direct pressing portion is pushed in with the thumb and forefinger, so that there is a drawback that the fingertips of the thumb and the index finger are easily damaged.
[0006]
In addition, since the pressing portion of the buckle is usually narrower than the bottom surface of the buckle, using a mechanism that strongly clamps between the thumb and forefinger will not hold the buckle when pinched with the finger. It was easy and the grip and operability were not sufficient.
[0007]
On the other hand, in the invention according to the prior art 2, there is a pressing portion on the socket side for detaching the socket and the plug, so that the pushing amount is somewhat reduced compared to the synthetic resin buckle according to the prior art 1. Although it is improved in terms of detachability, alleviation of fingertip pain, and easy to miss the buckle, there are disadvantages that the plug and socket are easily detached just by holding the socket, As in the case of Prior Art 1, the pressing portion is grasped with both thumb and index finger from both sides and pressed inward to some extent, and the operation of pulling the socket away from the plug is performed while maintaining the pressed state. As a result, it could not be said that it was sufficiently practical.
[0008]
The present invention has been made in view of the above circumstances, and it is possible to detach the plug and the socket very easily and quickly after reliably preventing inadvertent detachment of the plug and the socket. It is an object of the present invention to provide an extremely excellent synthetic resin buckle that does not hurt a finger at an edge or the like and that is not damaged during a detachment operation.
[0009]
[Means for Solving the Problems]
A socket (1) comprising a socket main body (11) and a slide cover (10), and a plug (2) detachable from the socket (1), the plug (2) of the socket main body (11). A synthetic resin buckle provided with an engagement leg (20) having an engagement means for the engagement portion, and the slide cover (10) attached to the socket main body (11) so as to reciprocate in the plug attachment / detachment direction. The slide cover has a pressing projection (103) formed on the inner surface of the cover substrate (100), and the two engaging legs (20) formed from the belt connecting portion of the plug (2) are formed on the outer surface (23). A leg expansion / contraction width portion (24) having a slanted surface with a “<” shape in plan view is formed, and the inner wall surface (118) of the socket main body (11) and the engagement leg (20) in the engagement state of the socket and the plug. Outside surface 23) and a pressing projection (103) of the slide cover (10) is fitted into the passage (12), and the passage (12) has the leg expansion / contraction width portion ( 24), the passage narrowing portion (120) and the passage widening portion (121) continuous to the passage narrowing portion are provided, and the pressing protrusion (103) is extended from the passage narrowing portion (120) to the passage widening portion (120). 121), the slide cover (10) slides in the plug insertion direction with respect to the socket main body (11), and a synthetic resin buckle that releases the engagement between the socket (1) and the plug (2). This is a means for solving the problem.
[0010]
【The invention's effect】
According to the present invention, when the socket and the plug are engaged, the pressing protrusion in the passage follows the movement of the slide cover by sliding the slider in the socket and plug detaching direction with respect to the socket main body. Then, the side of the engagement leg of the plug and the inner wall of the socket main body are pressed while moving the reduced width part, the engagement leg is bent, and the pressing protrusion reaches the widened part beyond the reduced width part. In this embodiment, the engagement portion of the socket main body base portion and the engagement means of the engagement leg of the plug engagement leg are ensured to be in a released state. Thus, the engagement between the engagement leg and the engagement means in the engagement leg of the plug is not released, so that inadvertent detachment of the plug and the socket can be surely prevented.
[0011]
Also, once the pressing protrusion reaches the passage widening portion beyond the passage narrowing portion, the passage widening portion functions as a narrowing portion with respect to the return direction of the pressing protrusion, and the pressing protrusion is carelessly returned to the return direction. Therefore, smooth detachment operation can be realized.
[0012]
Furthermore, according to the present invention, since the attachment / detachment direction coincides with the slide direction, the attachment / detachment operation can be performed very easily and quickly. That is, the socket and the plug can be attached / detached by holding only the slide cover and pulling the socket in the attaching / detaching direction.
[0013]
In addition, according to the present invention, since the socket and the plug can be detached only by gripping and sliding only the slide cover, it is possible to release the engagement without damaging the finger at the edge of the socket. Since there is no operation of strongly pressing the pressing portion with a finger, the buckle can be prevented from being lost.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a plan view showing an exploded state of a synthetic resin buckle according to an embodiment of the present invention, FIG. 2 is a plan view showing a separated state of the synthetic resin buckle according to the embodiment, and FIG. 3 is an embodiment of the present invention. FIG. 4 is a plan view with a partial cross section showing a state in which the engagement of the synthetic resin buckle according to the embodiment is released; FIG. 5 is a partial sectional view showing an engaged state of a synthetic resin buckle according to another embodiment, and FIG. 6 is an explanatory view showing a used state of the synthetic resin buckle according to an embodiment of the present invention.
[0015]
As shown in FIGS. 1 to 4, the synthetic resin buckle according to the embodiment of the present invention is a buckle for connecting the end portions v <b> 1 and v <b> 2 of the belt, and includes a slide cover 10 and a socket main body 11. The socket 1 made of polyacetal resin having a total length of 24 mm, a width of 26 mm, and a height of about 7 mm, and two sockets 20 having a length of about 22 mm are inserted into the opening 13 of the socket 1. It is composed of a plug 2 made of polyacetal having a total length of about 36 mm that can be engaged and disengaged with each other, and the usage state is as shown in FIG.
[0016]
Here, the socket main body 11 includes a belt connecting portion 110 having a belt through hole 112 as a connecting means with the belt end v1, and a base bottom surface 113 and base side walls 115 standing on both side edges of the base bottom surface 113. The main base 111 is connected to the inner side wall 118 of the base side wall 115, and the receiving portions 114 and 114 that are the engaging portions with the plug 2 and the plug 2 in the socket 1. It is assumed that a slide guide portion 119 for accurately guiding is formed.
[0017]
Further, as an assembling means with the slide cover 10, in order to enable reciprocal sliding with respect to the slide cover 10 within the restricted range, assembling protrusions 117, 117 are provided on the outer surfaces of the base side walls 115, 115. On the bottom surface 113, there are formed slide guide holes 116 and insertion guide portions 190 each having a ridge having an inclined surface.
[0018]
The slide cover 10 has a structure in which cover side walls 101 and 101 are formed perpendicular to both ends of the cover substrate 100 and the cover substrate 100, and a slide regulating projection 102 and two pieces are provided on the inner surface of the cover substrate 100. The pressing projections 103 and 103 are formed, and the cover side walls 101 and 101 are respectively formed with long holes 104 and 104 for assembly.
[0019]
Then, the assembly protrusions 117 and 117 of the socket main body 11 are fitted in the assembly long holes 104 and 104 of the slide cover 10, and the slide restriction protrusion 102 of the slide cover 10 is fitted in the slide restriction hole 116 of the socket main body 11. The slide cover 10 is attached to the socket main body 11 so as to be reciprocally slidable within a certain range, and an opening 13 is formed in the socket 1.
[0020]
Next, the plug 2 is configured by connecting an engaging portion and a belt connecting portion 21 wider than the engaging portion and having a belt through hole. Engagement legs 20 and 20. Reinforcing portions 26 are formed at the bases of the engagement legs 20, 20 to have a width that fits into the socket opening width and to ensure the strength of the bases of the engagement legs.
[0021]
The engaging legs 20, 20 form engaging claw portions 22, 22 at the end outer side positions, and the leg enlarged / reduced width portions 24, 24 that form a contour shape in the vicinity of the outer side of the central portion in a “C” shape in plan view. Is forming.
[0022]
With such a configuration, when the plug 2 is inserted into the opening 13 of the socket 1, it is only necessary to hold the slide cover 10 of the socket 1 and the plug 2. The passages 12, 12 are formed between the outer surfaces 23, 23 of the engaging legs 20, 20 and the inner surface of the base side wall 115 when the 20, 20 enters, and are suspended from the inner surface of the cover substrate 100 of the slide cover 10. The two pressing protrusions 103 and 103 move from the widened portions 121 and 121 of the passages 12 and 12 to the narrowed portions 120 and 120 beyond the vicinity of the leg widened portions 24 and 24 of the engaging legs 20 and 20 serving as resistance. At the same time, the engaging claws 22, 22 in the engaging legs 20, 20 engage with the engaging receiving portions 114, 114 of the main body base 111 in the socket 1, and further, the assembly protrusion 117, 17 abuts against the edge of the assembly long hole 104, 104. Thereby, as shown in FIG. 1, the engagement state of the socket 1 and the plug 2 is ensured.
[0023]
In order to detach the socket 1 and the plug 2, it is only necessary to pull the slide cover 10 strongly in the direction of detaching the socket. By pulling the slide cover 10, the pressing protrusions 103, 103 are connected to the engagement legs 20, 20 of the plug 2. The outer side surfaces 23, 23 and the inner wall surface 118, 118 of the socket main body 11 are pressed so that the engaging legs 20, 20 are bent inward, and the passage widening portion from the passage narrowing portion 120, 120 in the passage 12, 12. By moving to 121, 121, a disengagement state between the engagement receiving portions 114, 114 of the socket main body base 111 and the engagement claw portions 22 of the engagement legs 20, 20 of the plug 2 is ensured.
[0024]
In this state, the restoring force of the engagement legs 20, 20 acts in the return direction on the pressing protrusions 103, 103, but the outer surfaces 23, 23 of the engagement legs 20, 20 forming the passage widening portions 121, 121 are Due to the slope, the pressing protrusions 103 and 103 are prevented from returning. By preventing the return in this way, the socket 1 and the plug 2 are prevented from being unintentionally attached and detached.
[0025]
The degree to which the socket 1 and the plug 2 can be easily attached and detached can be freely changed by changing the inclination angle and width of the inclined surfaces of the passage narrowing portion 120 and the passage widening portion 121 and the size and shape of the pressing protrusion 103. Can be set to
[0026]
Further, the slide restricting hole 116 and the central slide restricting protrusion 102 restrict the sliding of the slide cover 10 in order to prevent the slide cover 10 from falling off.
[0027]
Further, in this embodiment, the slide and the slide restricting means are performed by a combination of a hole and a protrusion, but the slide and the slide restricting means are also performed by a combination of a groove that is continuous within the restriction range in the slide direction and a protrusion that fits into the groove. Slide regulation can be performed.
[0028]
Furthermore, in this embodiment, the passage narrowing portion 120 and the passage widening portion 121 are both formed by using the outer side surface 23 of the engaging leg 20 as an inclined surface . As shown by way of example, an inclined surface is formed on the inner wall surface 118 of the base side wall 115 to form a passage narrowing portion 120 and a passage widening portion 121, and the pressing protrusion 103 is deformed by the inclined surface , thereby the pressing protrusion. The engagement leg 20 can be pressed at 103 to release the engagement between the socket 1 and the plug 2.
[0029]
Further, the slide cover 10 according to the embodiment is composed of the cover substrate 101 and the cover side walls 102 erected on both ends of the cover substrate 101. However, the present invention is not limited to the configuration. For example, the two cover substrates facing each other may have a cylindrical shape or the like through the cover side wall at both ends.
[Brief description of the drawings]
FIG. 1 is a plan view showing an exploded state of a synthetic resin buckle according to an embodiment of the present invention.
FIG. 2 is a plan view showing a state in which the socket and the plug of the synthetic resin buckle according to the embodiment of the present invention are separated.
FIG. 3 is a partial cross-sectional plan view showing an engaged state of a synthetic resin buckle according to an embodiment of the present invention.
FIG. 4 is a partially sectional plan view showing a state in which the engagement of the synthetic resin buckle according to the embodiment of the present invention is released.
FIG. 5 is a partial cross-sectional plan view showing an engaged state of a synthetic resin buckle according to another embodiment of the present invention.
FIG. 6 is an explanatory view showing a use state of a synthetic resin buckle according to an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Socket 10 Slide cover 100 Cover board 101 Cover side wall 102 Slide control protrusion 103 Press protrusion 104 Assembly long hole 11 Socket main body 110 Belt connection part 111 Main base part 112 Belt through-hole 113 Base bottom face 114 Engagement receiving part 115 Base side wall 116 Slide restriction hole 117 Assembly projection 118 Inner wall surface 119 Slide guide portion 12 Passage 120 Passage width reduction portion 121 Passage widening portion 13 Opening portion 2 Plug 20 Engagement leg 21 Belt connecting portion 22 Engagement claw portion 23 Outer side surface 24 Leg expansion / contraction width Part 25 Belt through hole 26 Reinforcement part v1 belt v2 belt

Claims (3)

A socket (1) comprising a socket main body (11) and a slide cover (10), and a plug (2) detachable from the socket (1), the plug (2) of the socket main body (11). A synthetic resin buckle provided with an engagement leg (20) having an engagement means for the engagement portion, and the slide cover (10) attached to the socket main body (11) so as to reciprocate in the plug attachment / detachment direction. In
The slide cover has a pressing projection (103) formed on the inner surface of the cover substrate (100),
The two engaging legs (20) formed from the belt connecting portion of the plug (2) form a leg expanding / contracting width portion (24) having an inclined surface having a "-" shape in plan view on the outer surface (23). ,
In the engaged state of the socket and the plug, a passage (12) is formed between the inner wall surface (118) of the socket main body (11) and the outer surface (23) of the engagement leg (20), and the passage (12) The pressing protrusion (103) of the slide cover (10) is fitted inside,
The passage (12) is configured to have a passage reduced width portion (120) and a passage widened portion (121) continuous to the passage reduced width portion by the leg widened / reduced width portion (24),
The pressing protrusion (103) moves from the passage narrowed portion (120) to the passage widened portion (121).
A synthetic resin buckle characterized in that the slide cover (10) slides in the plug insertion direction with respect to the socket main body (11) to release the engagement between the socket (1) and the plug (2). A socket (1) comprising a socket main body (11) and a slide cover (10), and a plug (2) detachable from the socket (1), the plug (2) of the socket main body (11). A synthetic resin buckle provided with an engagement leg (20) having engagement means for the engagement portion, and the slide cover (10) is attached to the socket main body (11) so as to reciprocate in the plug attachment / detachment direction. In
The slide cover has a pressing projection (103) formed on the inner surface of the cover substrate (100),
An inclined surface is formed on the inner wall surface (118) of the socket main body (11),
In the engaged state of the socket and the plug, a passage (12) is formed between the inner wall surface (118) of the socket main body (11) and the outer surface (23) of the engagement leg (20), and the passage (12) The pressing protrusion (103) of the slide cover (10) is fitted inside,
The passage (12) has a passage narrowed portion (120) and a passage widened portion (121) continuous to the passage narrowed portion (120) by an inclined surface formed on the inner wall surface (118) of the socket main body (11). And having a configuration
The pressing protrusion (103) moves from the passage narrowed portion (120) to the passage widened portion (121).
A synthetic resin buckle characterized in that the slide cover (10) slides in the plug insertion direction with respect to the socket main body (11) to release the engagement between the socket (1) and the plug (2). The socket main body (11) includes a belt coupling part (110) and a main body base part (111), and the main body base part (111) stands on the base bottom surface (113) and both side edges of the base bottom surface (113). A synthetic resin having a structure in which the slide cover (10) includes a cover substrate (100) and cover side walls (101) (101) perpendicular to both ends of the cover substrate (100). In the buckle made
The base bottom surface (113) of the socket main body (11) includes a slide restricting hole (116),
A slide restricting projection (102) is formed on the inner surface of the cover substrate (100) of the slide cover (10),
The slide cover (10) can be reciprocally slidable within a certain range with respect to the socket main body (11) by fitting the slide restricting protrusion (102) into the slide restricting hole (116). Or the synthetic resin buckle of 2.

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