JP2010099291A - Linkage mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a linkage mechanism which does not come off unexpectedly in a linkage state. <P>SOLUTION: The linkage mechanism 1A links a male member 2 and a female member 3 so as to be locked and released. When lock grooves 5, 5 formed on both upper and lower faces of the insertion part 4 of the male member 2 and lock protrusions 10, 10 formed on an inserted part 8 including a pair of upper and lower elastic piece parts 9, 9 of the female member 3 are locked, stopper piece parts 11, 11 facing both side faces 4a in the width direction of the insertion part 4 are provided in the inserted part 8. By this, the mutual movement in the width direction of the insertion part 4 and the inserted part 8 is regulated, and a sure linkage state in which the male member 2 and the female member 3 do not come off unexpectedly is achieved. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a coupling mechanism for detachably coupling a male member and a female member.

  As a connection mechanism that releasably connects a male member and a female member, it is applied to a connection part for connecting the end portions of a neck strap that hangs an employee ID card or mobile phone around the neck in a loop shape. Are known (for example, see Patent Document 1), and are applied to a connecting portion between a character accessory body and a strap (for example, see Patent Document 2).

As shown in FIG. 7 (A), these coupling mechanisms include a female member a having a pair of elastic clamping pieces b, b disposed opposite one end, and a male member having a rod-shaped hook portion d at one end. As shown in FIG. 7 (B), the rod-shaped hook portion d of the male member c is fitted between the elastic holding pieces b, b of the female member a so that both can be detachably connected. It can be done.
Utility Model Registration No. 3141020 JP 2007-289589 A (paragraph [0027], FIGS. 5 and 6)

  By the way, in this type of connecting mechanism, in the connected state, the rod-like hook portion d fitted between the elastic holding pieces b, b is slid to the side of the elastic holding pieces b, b. However, since the rod-shaped hook portion d is always free to slide to the side, the rod-shaped hook portion d slides to the side even if it is not intended to release the connection. There was a problem that it was off.

  The present invention has been made so as to solve such conventional problems, and it is an object of the present invention to provide a connection mechanism that prevents unexpected disconnection when connection release is not intended. .

  The present invention is a coupling mechanism for detachably coupling a male member and a female member, comprising a substantially rectangular plate-like insertion portion on one end side, obliquely with respect to the insertion direction on both upper and lower surfaces of the insertion portion. And a locking groove having an inclined surface that gradually increases in depth and a locking surface that rises perpendicularly or in a direction opposite to the insertion direction from the back end of the inclined surface, respectively, along the width direction of the insertion portion. The engaging member is provided with an insertion portion composed of a pair of upper and lower elastic pieces projecting in the insertion direction on one end side of the formed male member, and the locking groove is formed on the opposing surfaces of the upper and lower elastic pieces. The engaging protrusions are engaged with the locking grooves on the side edges in the width direction of the two elastic pieces at the rear of the engaging protrusions in the insertion direction. In the state where the stopper piece portions facing both side surfaces in the width direction of the insertion portion are moved in the insertion direction of the insertion portion. When it matches a lateral position of the serial locking groove, a linking mechanism, characterized in that comprising a female member which is provided in a shape that allows movement of the insertion portion and the insertion portion cross the width direction.

  Here, as the material of the male member, a metal or a hard synthetic resin is suitably used, and as the material of the female member, a hard synthetic resin having appropriate elasticity can be suitably used.

  In the connecting mechanism, when the end of the insertion portion comes into contact with the back end of the insertion portion due to the movement of the insertion portion in the insertion direction, the stopper piece is positioned at the side position of the locking groove. Such a configuration is proposed.

  In addition, a positioning groove that can be engaged with the engaging protrusion is provided behind the locking groove in the insertion direction of the insertion portion, and when the engagement protrusion is engaged with the positioning groove by movement of the insertion portion in the insertion direction. A configuration is proposed in which the stopper piece is positioned at the lateral position of the locking groove.

  Furthermore, a configuration is proposed in which the end of the insertion portion is provided with an easy insertion end having a semicircular or tapered cross section whose vertical width gradually decreases in the insertion direction.

  According to the connection mechanism according to the present invention, when the male member and the female member are connected, when the insertion portion of the male member is inserted into the insertion portion of the female member, the pair of upper and lower elastic pieces constituting the insertion portion are Along with the insertion of the insertion part, it is expanded in the vertical direction to generate a resilient force, and in this state, the locking groove of the insertion part is inserted to the position of the engagement protrusion formed on the opposing surface of the elastic piece part. Then, the engaging protrusion falls into the engaging groove via the elastic force of the elastic piece portion, and the engaging groove and the engaging protrusion are engaged. At this time, the stopper pieces provided at the side edges in the width direction of both elastic pieces constituting the inserted portion are in a state of facing both side surfaces in the width direction of the insertion portion. The movement in the width direction between the insertion portion and the inserted portion is restricted by the contact with the portion, and a reliable connection state in which the male member and the female member are not accidentally detached is obtained.

  Further, in such a connected state, when the insertion portion of the male member is further pushed in the insertion direction, the engagement protrusion of the elastic piece portion slides obliquely upward on the inclined surface of the locking groove, and then from the locking groove. By pulling out, the engagement between the locking groove and the engaging protrusion is released. In addition, when the stopper piece is aligned with the lateral position of the locking groove as the insertion portion moves in the insertion direction, the stopper piece can move in the locking groove in the width direction. In this state, the male member and the female member can be separated by relatively moving the insertion portion and the insertion portion relative to each other along the width direction.

  In this coupling mechanism, when the end of the insertion portion comes into contact with the back end of the insertion portion due to the movement of the insertion portion in the insertion direction, the stopper piece is positioned at the side position of the locking groove. In such a configuration, the stopper piece can be positioned at the lateral position of the locking groove by the contact between the end of the insertion portion and the back end of the insertion portion. When the male member and the female member are separated, the relative movement operation of the insertion portion and the insertion portion in the width direction can be easily performed.

  In addition, a positioning groove that can be engaged with the engaging protrusion is provided behind the locking groove in the insertion direction of the insertion portion, and when the engagement protrusion is engaged with the positioning groove by movement of the insertion portion in the insertion direction. In the configuration in which the stopper piece is positioned at the side position of the locking groove, the stopper piece is positioned at the side position of the locking groove by the engagement of the positioning groove and the engaging protrusion. Therefore, even in this configuration, when the male member and the female member are separated from each other in the positioning state, the relative movement operation in the width direction of the insertion portion and the insertion portion can be easily performed.

  Furthermore, in the configuration provided with an easy insertion end having a semicircular cross section or a tapered shape in which the vertical width gradually decreases in the insertion direction at the end of the insertion portion, the easy insertion end is tapered. Therefore, the insertion part can be easily inserted into the insertion part of the female member.

Below, the 1st Example of the connection mechanism concerning this invention is described based on FIGS. 1-3.
As shown in FIG. 1, the coupling mechanism 1A of the first embodiment includes a male member 2 and a female member 3 configured to be able to detachably connect the end portions of a belt 7 such as a neck strap. Become.

  The male member 2 includes a substantially rectangular plate-shaped insertion portion 4 on one end side, and the upper and lower surfaces of the insertion portion 4 are inclined with respect to the insertion direction F as shown in FIG. Locking grooves 5 and 5 each having an inclined surface 5a that gradually inclines and gradually increases in depth and a locking surface 5b that rises perpendicularly from the back end of the inclined surface 5a are provided along the width direction of the insertion portion 4, respectively. Is formed. The locking surfaces 5b of the locking grooves 5 and 5 can be provided so as to rise obliquely from the back end of the inclined surface 5a in the direction opposite to the insertion direction. Further, an insertion hole 6 through which the flat belt 7 can be inserted is formed on the other end side of the male member 2, and an end portion 7 a of the belt 7 inserted through the insertion hole 6 is fixed in a loop shape. Has been. As the material of the male member 2, a metal made of aluminum, iron, silver, titanium, or an alloy thereof, or a hard synthetic resin can be suitably used.

  On the other hand, the female member 3 is provided with an inserted portion 8 composed of a pair of upper and lower elastic piece portions 9 projecting in the insertion direction on one end side. Engaging protrusions 10 and 10 that can be engaged with the engaging grooves 5 and 5 are disposed on the opposing surface 9. Here, the engagement protrusions 10 and 10 are formed in substantially the same shape as the shape of the locking grooves 5 and 5, along the lateral width direction at the tips of the opposing surfaces of both elastic piece portions 9 and 9. Is provided. In addition, the distance between the elastic piece portions 9 and 9 is set to be substantially the same as the thickness of the insertion portion 4, and the width of both elastic piece portions 9 and 9 is slightly larger than the width of the insertion portion 4. It is set to be wide (see FIG. 3). Further, an insertion hole 19 through which the flat belt 7 can be inserted is formed on the other end side of the female member 3, and the end 7 b of the belt 7 inserted through the insertion hole 19 is fixed in a loop shape. Has been. As the material of the female member 3, a hard synthetic resin having appropriate elasticity such as polyacetal, polyethylene, polyvinyl chloride, polypropylene, polyamide, etc. can be suitably used.

  Stopper piece portions 11, 11 that are opposed to each other in the vertical direction are arranged on both side edges in the width direction of the elastic piece portions 9, 9 behind the engaging protrusions 10, 10 in the insertion direction. As shown in FIG. 3 (B), the stopper pieces 11 and 11 are in a state where the engaging protrusions 10 and 10 are engaged with the locking grooves 5 and 5 (see FIG. 2 (C)). The insertion portion 4 is provided so as to face both side surfaces 4a and 4a in the width direction, and the stopper piece portions 11 and 11 and the both side surfaces 4a and 4a of the insertion portion 4 are brought into contact with each other. Movement in the width direction between the inserted portions 8 is restricted. Further, as shown in FIG. 2 (D), when the stopper pieces 11 and 11 are aligned with the lateral positions of the locking grooves 5 and 5 as the insertion portion 4 moves in the insertion direction, The insertion portion 4 and the inserted portion 8 are formed in a shape that allows movement in the width direction between them. Here, as the shape of the stopper pieces 11, 11, other than the triangular shape as shown in the figure, a belt plate shape or a semi-elliptical shape may be used as long as it can move laterally within the locking grooves 5, 5. .

  Further, the distance from the arrangement position of the stopper pieces 11, 11 to the back end 12 of the inserted portion 8 is made to coincide with the distance from the locking grooves 5, 5 of the insertion portion 4 to the end of the insertion portion 4. As a result, the end of the insertion portion 4 (the easy insertion end 13) is moved to the back of the insertion portion 8 as shown in FIG. 2 (D) by the movement of the insertion portion 4 in the insertion direction. When contacting the end 12, the stopper pieces 11, 11 are positioned at the side positions of the locking grooves 5, 5.

  Further, an easy insertion end 13 having a semicircular cross section whose vertical width is gradually reduced in the insertion direction is formed at the end of the insertion portion 4, and the easy insertion end 13 inserts the insertion portion into the insertion portion 8. 4 can be easily inserted. The easy insertion end 13 may have a tapered shape other than a semicircular cross section.

  In this configuration, in order to connect the male member 2 and the female member 3, the insertion portion 4 of the male member 2 and the inserted portion 8 of the female member 3 are opposed to each other as shown in FIG. In this state, by inserting the insertion portion 4 into the insertion portion 8 along the insertion direction F, the pair of upper and lower elastic pieces 9 and 9 constituting the insertion portion 8 is as shown in FIG. As the insertion portion 4 is inserted, it is pushed up and down to generate a resilient force, and in this state, up to the position of the engagement protrusions 10 and 10 formed on the opposing surfaces of the elastic piece portions 9 and 9. When the locking grooves 5 and 5 of the insertion portion 4 are inserted, the engagement protrusions 10 and 10 are inserted into the elastic pieces 9 and 9 in the locking grooves 5 and 5 as shown in FIG. The locking grooves 5 and 5 and the engaging protrusions 10 and 10 are engaged by dropping through the generating force. At this time, the stopper piece parts 11, 11 provided at the side edges in the width direction of the both elastic piece parts 9, 9 constituting the inserted part 8 face both side faces 4 a, 4 a in the width direction of the insertion part 4. Therefore, the movement of the insertion portion 4 and the insertion portion 8 in the width direction is restricted by the contact between the side surfaces 4a and 4a and the stopper piece portions 11 and 11, and the male member 2 and the female member 3 are restricted. As a result, it is possible to obtain a reliable connection state that does not accidentally come off.

  On the other hand, in order to release such a connected state, when the insertion portion 4 of the male member 2 is further pushed in the insertion direction in the connected state shown in FIG. , 10 slides obliquely upward on the inclined surfaces 5a, 5a of the locking grooves 5, 5 and slips out of the locking grooves 5, 5, so that the locking groove 5 as shown in FIG. , 5 and the engagement protrusions 10, 10 are disengaged. When the stopper pieces 11 and 11 are aligned with the lateral positions of the locking grooves 5 and 5 as the insertion portion 4 moves in the insertion direction, the stopper pieces 11 and 11 are locked. 5 and 5 are movable in the width direction. In this state, the male member 2 and the female member 3 are moved by moving the insertion portion 4 and the insertion portion 8 relative to each other in the opposite direction along the width direction. Can be separated.

  In the first embodiment, the insertion portion 4 is moved in the insertion direction so that the end portion (easy insertion end 13) of the insertion portion 4 is located behind the insertion portion 8 as shown in FIG. Separation of the male member 2 and the female member 3 by providing the positioning means for the stopper pieces 11 and 11 to be positioned at the lateral positions of the locking grooves 5 and 5 when they come into contact with the end 12. Sometimes, the relative movement operation of the insertion portion 4 and the insertion target portion 8 in the width direction can be easily performed.

  4 and 5 show a second embodiment, and the coupling mechanism 1B of the second embodiment includes positioning means for the stopper pieces 11 and 11 having other configurations. In other words, the insertion portion 4 of the male member 2 includes the engagement protrusions 10 and 10 of the female member 3 behind the locking grooves 5 and 5 with respect to the insertion direction F of the insertion portion 4 (see FIG. 5A). Positioning grooves 14 and 14 in which the engaging protrusions 10 and 10 can be engaged are provided at positions corresponding to the distance between the stopper pieces 11 and 11. When the engaging projections 10 are engaged with the positioning grooves 14 by moving the insertion portion 4 in the insertion direction, the stopper pieces 11 and 11 are positioned at the side positions of the locking grooves 5 and 5. It is designed to be positioned. In addition, about the component which is common in 1st Example, the code | symbol same as 1st Example is attached | subjected and duplication description is abbreviate | omitted.

  In such a configuration, when the connection state shown in FIG. 5B is released, when the insertion portion 4 of the male member 2 is further pushed in the insertion direction, the engagement protrusions 10, 10 of the elastic piece portions 9, 9 are moved. By engaging the inclined surfaces 5a, 5a of the locking grooves 5, 5 obliquely upward and coming out of the locking grooves 5, 5, the engagement between the locking grooves 5, 5 and the engagement protrusions 10, 10 is achieved. Is released, and the engagement protrusions 10 are engaged with the positioning grooves 14 and 14 as the insertion portion 4 moves in the insertion direction. As shown in FIG. , 5 are positioned at the lateral positions of the stopper pieces 11, 11. Thereby, when the male member 2 and the female member 3 are separated, the relative movement operation in the width direction of the insertion portion 4 and the insertion portion 8 can be easily performed.

  In the first embodiment and the second embodiment described above, the connection mechanisms 1A and 1B including the male member 2 and the female member 3 configured to be able to detachably connect the end portions of the belt 7 with each other. As described above, the connecting mechanism according to the present invention can be used for various applications by appropriately changing the shapes of the male member 2 and the female member 3 on the other end side. FIG. 6 shows an example of the modification. On the other end side of the male member 2, a support plate portion 15 that supports a card body 16 such as an employee card is formed, while on the other end side of the female member 3, An insertion hole 17 through which the strap 18 is inserted is formed in the width direction. Here, the card body 16 is attached to the support plate portion 15 with an adhesive or a double-sided tape, and the strap 18 can hang the card body 16 by connecting both ends in a loop shape and hanging on the neck. .

It is a perspective view which shows the isolation | separation state (A) and connection state (B) of 1 A of connection mechanisms concerning a 1st Example. It is a side view which shows the isolation | separation state (A), connection operation state (B), connection completion state (C), and connection release operation state (D) of the connection mechanism 1A same as the above. It is a top view which shows the isolation | separation state (A) and connection state (B) of 1 A of connection mechanisms. It is a perspective view which shows the isolation | separation state (A) and connection state (B) of the connection mechanism 1B concerning a 2nd Example. It is a side view which shows the isolation | separation state (A), connection state (B), and connection release operation state (C) of the connection mechanism 1B same as the above. It is a perspective view which shows the change aspect of the shape of the other end side of the male member 2 and the female member 3. FIG. It is a perspective view which shows the isolation | separation state (A) and connection state (B) of the conventional connection mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1A, 1B Connection mechanism 2 Male member 3 Female member 4 Insertion part 4a Both-sides surface 5 Locking groove 5a Inclined surface 5b Locking surface 8 Insertion part 9 Elastic piece part 10 Engagement protrusion 11 Stopper piece part 12 Back end 13 Easy insertion End 14 Positioning groove

Claims (4)

A coupling mechanism for detachably coupling a male member and a female member,
A substantially rectangular plate-like insertion portion is provided on one end side, and an inclined surface that is inclined obliquely with respect to the insertion direction and gradually increases in depth on both the upper and lower surfaces of the insertion portion, and is perpendicular to the rear end of the inclined surface or Male members each having a locking groove provided with a locking surface rising in the opposite direction to the insertion direction, along the width direction of the insertion part;
An insertion portion comprising a pair of upper and lower elastic piece portions projecting in the insertion direction is provided on one end side, and the engagement surfaces engageable with the engaging grooves respectively on the opposing surfaces of the upper and lower elastic piece portions. In the state where the mating projection is formed and the engagement projection is engaged with the locking groove on the side edge in the width direction of both elastic piece portions behind the insertion direction of the engagement projection, When the stopper piece portions facing both side surfaces in the width direction coincide with the lateral position of the locking groove as the insertion portion moves in the insertion direction, the width direction between the insertion portion and the insertion portion is determined. And a female member provided in such a shape that enables movement thereof.   The stopper piece is positioned at the side position of the locking groove when the end of the insertion portion comes into contact with the back end of the insertion portion due to the movement of the insertion portion in the insertion direction. The coupling mechanism according to claim 1.   A positioning groove on which the engaging protrusion can be engaged is provided behind the locking groove in the inserting direction of the insertion portion. When the engaging protrusion is engaged with the positioning groove by the movement of the inserting portion in the inserting direction, the stopper 2. The coupling mechanism according to claim 1, wherein the one portion is positioned at a side position of the locking groove.   4. The insertion portion according to claim 1, further comprising a semi-circular or taper-shaped easy insertion end whose top and bottom widths gradually decrease in the insertion direction at the end of the insertion portion. The coupling mechanism described in 1.

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