JP2018029932A - buckle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an excellent buckle in a simple structure which is safe, is excellent in operability, and causes no ricketiness.SOLUTION: In a buckle, leg parts provided for a male member are inserted in an insertion port of a female member and engaged. There are provided: locking parts protruding outward at end parts; pressing parts connected to the outside of the locking parts; legs equipped with guide pieces protruding diagonally inward; across an inside an upper wall and an inside of a lower wall in the middle of facing side walls of a cylindrical body, a partition wall which stably guides the locking parts in engaging holes between the guide pieces and is supported from inside even when a force vertically crushing operates simultaneously to the cylindrical body. In the state that the buckle is completely inserted, the end part of the partition wall is engaged with a recess provided for the male member to prevent twisting of the buckle in the vertical direction. In a separate state that the buckle is not inserted, end parts of the guide pieces are arranged so that they abut to each other. In order to prevent damage in the case that an unnecessary force to expand is added to the legs, a pair of suppression walls protruding in an insertion direction from a base part are arranged outside arms.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a buckle.

  For example, Japanese Patent Application Laid-Open No. 2000-166616 (Patent Document 1) discloses a conventional buckle that provides a buckle in which each engagement portion of a male member is easy to be pressed (operated) and the elastic piece is not damaged. The purpose is to insert the hollow cylindrical female member provided with the insertion hole and the locking part, and the engaging part that engages with the locking part at both ends of the front surface of the flange part into the insertion hole provided at the tip. In the buckle composed of a male member provided so that the elastic pieces are opposed to each other, one end side of each engaging portion is connected to the front surface of the flange portion with the first elastic piece, and the other end sides of the engaging portions are connected to each other. A “buckle” has been proposed in which a second elastic piece is connected to make the first elastic piece thinner than the second elastic piece.

  Japanese Patent Laid-Open No. 2004-313268 (Patent Document 2) discloses that in a side release type or side push type buckle, it is possible to avoid the spread damage of the lock arm and to sufficiently reduce the manual operation for disconnecting. A base for the purpose of providing a buckle, comprising a socket and a plug that can be inserted into the socket at its distal end and releasable by manually pressing both sides of the socket. A pair of lock arms extending from the base to the distal end side, an engaging portion formed at an intermediate portion of the lock arm and engageable with the inside of the socket, and disposed at an intermediate portion of the lock arm for manual operation. A “buckle” has been proposed that includes a pressing portion that is pressed and includes a bridge that connects intermediate portions of the lock arms.

  Japanese Patent Application Laid-Open No. 7-100005 (Patent Document 3) discloses that a buckle is composed of a male member and a female member for the purpose of being small and having good operability and having a large coupling force. The first engaging portion of the housing of the female member is the first engaging portion of the first elastic protrusion and the second engaging portion of the second elastic protrusion of the male member simply by being inserted into the female member. And coupled to the second engaging portion. Further, the second elastic protrusion is cooperated in the direction substantially perpendicular to the pressing direction only by pressing the outside of the first elastic protrusion of the male member, and the respective coupling is released and separated. Thus, a “buckle” has been proposed that can increase the coupling force without requiring a complicated operation without complicating the structure.

  Japanese Patent Application Laid-Open No. 7-155207 (Patent Document 4) discloses that the buckle is composed of a male member and a female member for the purpose of obtaining a small size, good operability, stable coupling and smooth coupling release. Then, simply by inserting the male member into the female member, the engaging portion and the auxiliary engaging portion of the elastic protrusion of the male member are coupled to the engaging portion and the auxiliary engaging portion of the housing of the female member. When the outer side of the elastic protrusion of the male member is pressed until the ends of the elastic protrusions cooperate with each other, they are elastically deformed in directions opposite to each other in a direction substantially perpendicular to the pressing direction, and the respective connections are released and separated. As a result, a “buckle” has been proposed in which the structure remains compact without complicating the structure, a stable coupling state can be obtained without requiring a complicated operation, and smooth coupling can be released.

JP 2000-166616 A JP 2004-313268 A JP 7-100005 A JP-A-7-155207

In either case, the arm part of the leg part is lifted to increase the rigidity of the leg part in order to avoid damage when careless force is applied in the outward direction of the leg part in the separated state where the insertion part is not inserted. The elastic deformation of the leg part in operation is hindered, and it is necessary to push the pressing part strongly, so that the operability is not good.
Furthermore, since the engagement hole is provided so as to be exposed from the slot provided in the curved side wall portion of the cylindrical body, there is a problem that the finger is not easily pushed by the fingertip and the finger is pinched.
Therefore, the present invention is intended to solve the problems of such a conventional configuration, avoiding damage to the outside of the leg portion, and making the operation for releasing the connection light, safe and easy to operate. The purpose is to provide an excellent buckle.

  In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that a female member of a flat cylindrical body provided with a pair of engagement holes and one end of a base part project in a direction facing the female member, A buckle comprising a male member provided with a pair of leg portions provided with a locking portion that engages with a force generated, wherein the leg portion has a cross-sectional thickness of an arm portion with respect to a coupling direction with a female member. And a thin plate in the direction orthogonal to each other, and at the end, a pressing portion connected to the outside of the locking portion is separated by a value obtained by adding 0.2 mm to the locking width H and the thickness t of the side wall. The guide piece is provided so as to protrude inward and obliquely inward.

  According to the second aspect of the present invention, in the buckle insertion operation, the force that is between the pair of guide pieces and stably guides the engaging portion to the engaging hole, and simultaneously crushes the flat cylindrical body in the vertical direction. A partition wall that can be supported from the inside even when the operation is performed is provided between the inside of the upper wall and the inside of the lower wall in the middle of the side walls facing each other.

  The invention according to claim 3 is characterized in that, in the state where the buckle is completely inserted, the leading end portion of the partition wall is fitted into the concave portion provided in the male member to prevent the buckle from being twisted in the vertical direction.

  According to a fourth aspect of the present invention, in the separated state in which the leg portion is not inserted, the guide piece is arranged so that the tip portions of the guide pieces abut each other so that the deformation amount in the inward direction of the leg portion is constant. It is characterized by preventing excessive deformation and breakage of the part.

  Further, in the invention described in claim 5, a pair of deterrence walls protruding in the insertion direction from the base portion are arranged on the outer side of the arm in order to prevent damage when an unnecessary force expanding outward is applied to the leg portion. It is characterized by.

As described above, according to the buckle according to the present invention, since the cross-sectional shape of the arm of the leg portion is thin and plate-like, the releasing operation can be facilitated lightly and easily.
Further, since the pressing portion connected to the outside of the locking portion is formed to protrude outward, problems such as a fingertip being pinched in the engaging or releasing operation can be solved.
Moreover, since the partition wall between the guide pieces and stably guiding the locking portion to the engagement hole is provided, the operability is excellent.
In addition, a partition wall is provided between the inner side of the upper wall and the inner side of the lower wall in the vertical direction in the middle of the opposite side walls of the cylindrical body, so that a force that crushes in the vertical direction of the flat cylindrical body is applied. However, it is supported from the inside.
Further, since the leading end portion of the partition wall is inserted and fitted into the concave portion provided in the male member in the state where the insertion of the buckle is completed, the buckle is prevented from being twisted in the vertical direction, and the coupling stability is maintained.
In addition, when the male members are not inserted, the guide pieces are arranged so that the leading ends of the guide pieces collide with each other, so that the amount of deformation in the inner direction of the legs is constant and excessive deformation and breakage of the legs are prevented. Can be prevented.
In addition, a deterrent wall is provided to prevent damage when unnecessary force is applied to the leg portion to expand outward.

It is a front view which shows an example of the male member of the buckle concerning this invention. It is a side view of the male member shown in FIG. It is a bottom view of the male member shown in FIG. It is a front view which shows an example of the female member of the buckle concerning this invention. It is a side view of the female member shown in FIG. It is a top view of the female member shown in FIG. It is a longitudinal cross-sectional view which shows the engagement state of the buckle concerning this invention. It is AA sectional view taken on the line which shows the engagement state of the buckle concerning this invention.

Embodiments of the present invention will be described below with reference to the drawings.
In addition, about each structure of the buckle of this invention, it is not limited to a following example, It can change suitably according to a use condition. The buckle of the present invention uses a synthetic resin material such as metal or plastic using an elastic member.

FIG. 1 is a front view showing an example of a male member of a buckle according to the present invention. FIG. 2 is a side view. FIG. 3 is a bottom view. When the male member 10 is coupled to the female member 20, a pair of leg portions 13 projecting from the base portion 11 located on the cylindrical body 21 side of the female member 20 in a direction facing the female member 20 along the insertion direction; 1, 2, 3, 7, and 8, the arm 13 has a plate-like leg portion 13, as shown in FIGS. 1, 2, 3, 7, and 8. The engaging portion 15 is engaged with the engaging hole 28 with the engaging portion 15, the pair of pressing portions 10 formed so as to be connected to the outside of the engaging portion 15, and the partition wall 29 provided on the female member 20. A guide piece 17 that stably guides is provided so as to protrude obliquely inward.
Also, a pair of deterrence walls 18 projecting along the outside of the arm 14 is arranged outside the arm in order to prevent damage to the leg 13 when an unnecessary force that spreads outward is applied.
FIG. 4 is a front view showing an example of the female member of the buckle according to the present invention. FIG. 5 is a side view. FIG. 6 is a plan view.
The female member 20 is a cylindrical body 21 that forms a hollow flat shape. As shown in FIG. 4, the side wall 23 is provided with a pair of an insertion portion 26, a guide groove 27, and an engagement hole 28 from the insertion end side. Yes.
A partition wall 29 is provided in the middle of the opposite side wall 23 of the female portion 20 so as to extend inside the upper wall 4 and the lower wall 25 facing each other as shown in FIGS. 4, 6, and 7.

Next, the operation of the present embodiment will be described. The end of the belt is attached to the hole of the female member 20 in the male member 10 and the hole 12, and the partition wall 29 provided in the cylindrical body 21 is interposed between the guide piece 17 and the guide member 17. The guided leg portion 13 enters with an urging force while contacting the inner wall surface of the guide groove 27 through the insertion portion 26, and the locking portion 15 is elastically engaged with the engagement hole 28 and at the same time, the front end portion of the partition wall 29. 30 fits into the recess 19 and is in an engaged state. (See FIGS. 7 and 8) Further, the engagement state can be released easily and safely by separating the male member 10 and the female member 20 while pushing the pressing portion 16 with a fingertip.
As described above, the buckle according to the present invention has a simple structure, is excellent in operability and safety, has a high degree of freedom in design, and contributes to a reduction in manufacturing cost.

10. Male member 11. Base 12. Hole 13. Leg 14. Arm 15. Locking part 16. Press part 17. Guide piece 18. Deterrence wall 19. Recess 20. Female member 21. Tube 22. Hole 23. Side wall 24. Upper wall 25. Lower wall 26. Insertion section 27. Guide groove 28. Engagement hole 29. Partition wall 30. Tip AA. Cross-sectional position Locking width t. Side wall thickness

Claims (5)

  A buckle that joins a female member forming a flat cylindrical body by inserting a part of the male member into the cylindrical body from a predetermined direction, and the female member intersects the insertion direction. A pair of engaging holes provided with guide grooves formed in each of the side walls located opposite to each other, and when the male member is coupled to the female member, A pair of leg portions projecting in a direction facing the female member from the base portion positioned in the insertion direction, and a tip portion of the leg portion on the female member side in a direction intersecting the insertion direction. A pair of locking portions that project outward and have a resilient force to engage with the engagement hole, a pair of pressing portions that are formed to be connected to the outside of the locking portion, and a distal end portion of the leg portion A pair of guide pieces projecting obliquely in the direction in which the legs facing each other are located The legs buckle, wherein the thickness of the cross section of the arm to be connected to the base is a thin plate in a direction orthogonal to the insertion direction of the female member.   In the insertion operation of the buckle, a partition wall that puts the guide piece in between and stably guides the locking portion to the engagement hole extends between the upper wall and the lower side between the opposing side walls of the cylinder. The buckle according to claim 1, wherein the buckle is provided.   3. The buckle according to claim 1, wherein, in a state where the buckle is completely inserted, the leading end of the partition wall is fitted into a recess formed between the legs provided on the male member. .   The buckle according to any one of claims 1 to 3, wherein the guide pieces are arranged so that the leading ends of the guide pieces abut each other in a separated state in which the leg portions are not inserted.   The male member has a pair of deterrence walls protruding from the base along the insertion direction to the outside of the arm, and each of the deterrence walls is a guide provided on the cylinder when the buckle is integrated. The buckle according to claim 1, wherein the buckle is disposed between the grooves.

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