JP5171046B2 - buckle - Google Patents

Description

  The present invention relates to a buckle composed of a male member and a female member, and particularly suitable for a mode in which one of the male member and the female member is pulled to the other and engaged with each other in a state where the male member and the female member are attached to the respective mating members. is there.

  FIG. 7A shows a buckle disclosed in Patent Document 1. FIG. The buckle in the figure is an example in which a male member (latch member) 1 is attached to the end of the lid F and engaged with a male member (latch holding member) 2 attached to the opening side of the housing C. . Here, the male member 1 has a flat plate portion 3 as an engaging portion, and a movable piece 6 which is partitioned by a U-shaped cut 5 at the center portion of the flat plate portion 3, and a lid as an attachment portion. It has a base 4 that is locked to the corresponding part of F. Reference numeral 7 denotes a V-shaped cut 7 provided at the tip of the flat plate portion 3, and reference numeral 9 denotes a thin-walled portion 9 provided on both inner sides of the cut 7 and deformed through the slit 8. On the other hand, the female member 2 has a recess 11 that receives the flat plate portion 3 as an engaged portion and a pressing piece 13 that is swingably partitioned by a U-shaped notch 12, and is not shown as an attachment portion. It has a plurality of protrusions projecting on the inner surface, and each protrusion protrudes from the through hole of the storage body C to the back surface side and is locked by a back plate or a spacer and a back plate disposed on the back surface of the storage body. Is attached to the storage body C with a predetermined strength.

  In the above buckle, the flat plate portion 3 of the male member is inserted into the recess 11 of the female member with the elastic displacement of the movable piece 6, and the movable piece 6 is provided on the inner surface of the pressing piece 13 (not shown). The lid F is held in the closed state by being engaged with the portion. This engagement is released when the pressing piece 13 is pushed down to release the movable piece 6 from the engaging portion. Then, the flat plate portion 3 is moved in the direction in which the flat plate portion 3 is pushed out of the recess 11 by the spring action of the thin portion 9 or the like. Such a structure is referred to as an upper release type because the male / female member is a type that is disengaged by a pressing operation of the pressing piece 13 on the upper surface side.

  On the other hand, FIG.7 (b) has shown the buckle currently disclosed by Example 2 of patent document 1. FIG. The buckle SR in the same figure is an example in which the female member 1 attached to the end of the string W ′ is engaged with the male member 2 attached to the wide fabric S. Here, the male member 2 has left and right insertion piece portions (leg portions) 2a, 2a as engaging portions, and is a frame shape integrated with the base portion 2e of each insertion piece portion 2 as an attachment portion. It has a body 20 and is attached to the fabric S or the belt-like body by sewing H on both sides in a state where the frame-like body 20 is sandwiched between the fabric S and the belt-like body W. Reference numeral 2c denotes a protrusion provided on the insertion piece 2a. On the other hand, the female member 1 has a flat cylindrical shape, and is provided on a side surface that divides the space portion and a space portion that can receive each insertion piece portion 2a from the front opening as an engaged portion. It has a window part (hanging window) 1b that allows a part of the part 2a to be pushed, and the attachment part is configured to fold back and hold the end of the band W or the like.

In the buckle SR described above, the female member 1 is brought close to the male member 2, each insertion piece 2a is inserted into the space from the front opening of the female member 1, and the protrusion 2c is the window 1b on the female member side. Is elastically engaged. This engagement is released by pushing the corresponding part of the insertion piece 2a exposed to the window 1b inward with a finger. Such a structure is referred to as a side release type because the male / female member is a type that is disengaged by pushing the insertion piece 2a on the side of the female member.
Japanese Patent No. 8-103304 JP 2003-284606 A

  Each of the above buckles is simple and easy to use because the male member and the female member are engaged by the operation of inserting one into the other and are disengaged by the pushing operation, but are still satisfactory from the following points. could not. In the conventional structure, the insertion operability when one of the male member and the female member is engaged with the other is deteriorated for the following reason. That is, in the structure of FIG. 7A, the recess 11 constituting the engaged portion in a state where the female member 2 is attached to the storage body C, that is, the front opening and the space portion for receiving the flat plate portion 3 are the attachment surface. Therefore, when the male member 1 is brought close to the female member 2, the fingertip or the like is likely to hit the storage body side, and the flat plate portion 3 is almost parallel to the mounting surface of the storage body C in the recess 11. It becomes difficult to insert because it has to be moved and inserted in the state. In the structure of FIG. 7B, since the insertion piece 2a that is the engaging portion is substantially parallel to the attachment surface, the male member 2 is attached to the male member 2 with the male member 2 attached to the fabric S. When the member 1 is brought closer, the fingertip or the like is likely to hit the fabric side, and the female member must be moved substantially in parallel with the attachment surface on the fabric side to receive the insertion piece 2a on the inside, which makes it difficult to perform the insertion operation. . Such plug-in operability becomes a problem as the buckle becomes more compact or flattened, and becomes a factor of reducing the commercial value.

The object of the present invention is to solve the above-mentioned problems, to make it possible to perform better insertion operability when engaging, while maintaining conciseness and mass productivity, and operability to attach to a mating member Is to improve the usability and product value and to expand the applications.

The invention of claim 1 solves the above-described problem, and is a male member having an insertion piece portion for an engaging portion, and a latch that is formed in a flat cylindrical shape and can receive the insertion piece portion from a front opening. A female member having a space portion for a joint portion and a window portion that is provided on a side surface that divides the space portion and that is exposed so as to be able to push and operate a part of the insertion piece portion. In the buckle forming a mounting portion for mounting to a mating member, the female member defines the space portion between a bottom wall and a reverse concave outer wall, and the inner surface extends from the bottom surface of the bottom wall. By forming the front part higher than the rear part as the height up to,
In a state where the lower surface of the bottom wall is attached to the mating member as the attachment surface of the attachment portion, the inside of the space portion is provided obliquely downward with respect to the attachment surface, and becomes an inclined state that becomes lower as going from the front opening to the back. The insertion piece of the male member can be engaged with the space while approaching obliquely downward.

In the above invention, the attachment portion of the female member has a flange-like flange portion, and is fixed in a state in which the flange portion is in contact with the counterpart member (Claim 3), and the attachment portion is the counterpart. It is more preferable to use a resin material that is the same material as the member, or a material that is coated on the surface with the same material as the counterpart member or a material that has a close melting point (Claim 4).

In the invention of claim 1, in the engagement operation of the male member and the female member, the male member and the female member are engaged with each other via the insertion piece portion and the space portion while approaching obliquely downward with respect to the other. As a result, the insertion operability can be performed better than the conventional product, thereby improving the usability. Further, as a structural feature, since the space portion of the female member is merely in an inclined state in which the front side is higher than the rear side with respect to the mounting surface of the mounting portion, it is simple and can be implemented without increasing costs. .

In the second aspect of the invention, like the female member shown in the embodiment, the flange-shaped flange portion is used to increase the options of attachment means such as sewing fixing, adhesive fixing, and welding fixing, thereby expanding the design flexibility. Moreover, the contact strength with respect to the mating member can be increased to improve the fixing strength. In the invention of claim 3, if at least the surface has the same material as the counterpart member or a material having a close melting point as the resin material, the welding and fixing can be performed reliably.

  The best mode of the present invention will be described with reference to the drawings. FIGS. 1 and 2 show the use mode, FIG. 3 shows the appearance of the male / female member, FIGS. 4 and 5 show the female member or the male member as a single item, and FIG. 6 shows the female member and the male member. Showing the relationship. In the following description, the outline, the structural features, the operational features, and the modification examples will be described in detail. The basic action is clarified together with the structural features, and the action features are referred to focusing on the important actions that become the gist of the invention.

The (outline) form of the buckle 3 is composed of a male member 1 and a female member 2 and is an example of a side release type. For example, the female member 2 is attached to a mounted portion such as a storage body 4, and the male member 1. Is attached to an attached portion such as a belt member 5 on the lid side (including a member similar to a belt or a string), and the lid is engaged with the male member 1 and the female member 2 on the storage body 4 via the belt member 5. It is possible to connect through the connection. Of course, the use of the buckle 3, that is, the other member may be other than the combination of the housing 3 and the lid or band member 5. In other words, the male member 1 and the female member 2 have one of an engaging portion and an engaged portion, which will be described later, and engage when the one approaches the other or approaches each other, and the female member It is the same as the conventional product in that the engagement can be released by a pushing operation from the side 2 and that both are made of a resin molded product. The main contrivance points are a configuration in which one of the male member 1 and the female member 2 can be engaged while approaching obliquely downward with respect to the other, and a configuration in which the vertical wall portion 26 for expanding finger contact is attached to the female member 2 There are a configuration in which the female member 2 is provided with a flange-like flange portion 25 and a guide configuration for positioning when the male member 1 is engaged with the female member 2. Details are as follows.

(Structural Features) The male member 1 has a size corresponding to the female member 2 as shown in FIGS. 3 and 5, and an attachment portion 10 for attaching the band member 5 toward the front side from the rear, and an engagement portion. And a pair of insertion piece portions 15 that are inserted into the female member 2 and a guide portion 18 that is centered when each insertion piece portion 15 is inserted into the female member 2. The male member 1 is a resin molded product made of polyacetal or the like having excellent wear characteristics, impact resilience, and the like.

  Among these, the attachment portion 10 is provided with a front attachment hole 12 and a rear attachment hole 13 with the latching portion 11 therebetween. The hooking portion 11 is a place where the corresponding end of the band member 5 is hooked in a loop shape. The front mounting hole 12 is located between the latching portion 11 and the base portion 14 of the insertion piece portion 15. The rear mounting hole 13 is located between the latching portion 11 and the rear end portion 10a.

  The base portion 14 is formed in an arc shape on both the upper and lower sides. On the front end surface of the base portion 14, each insertion piece portion 15 protrudes from the vicinity of both sides, and a guide portion 18 protrudes from the left and right intermediate portion. Each insertion piece portion 15 has a distal end side slightly displaced inward, a proximal end side that is thin and wide from the middle, a hole 15a that penetrates vertically and is provided slightly forward from the middle, and a distal end It has a sliding projection 16 projecting on the inner upper and lower surfaces and a retaining projection 17 projecting on the outer surface on the base end side. The guide portion 18 forms a V-shaped portion 18a that gradually becomes thinner from the front to the rear, and a slit portion 18b that extends from the apex of the V-shaped portion 18a to the front of the base portion 14.

  A band member 5 is attached to the male member 1 described above. That is, for example, as shown in FIG. 2, the band member 5 passes through the mounting side end 5 a from below the rear mounting hole 13 to the upper side of the mounting portion 10, and then the outside of the latching portion 11. From the top to the bottom of the front mounting hole 12, the belt member 5 is attached by being locked in a state of being overlapped with the corresponding portion on the lower surface side of the band member 5.

  As shown in FIGS. 3, 4, and 6, the female member 2 has a substantially flat cylindrical shape, and an inner space portion 22 is defined between a substantially rectangular bottom wall 20 and a reverse concave outer wall 21. The window portions 23 and 23 that are formed on both sides and communicate with the space portion 22, the flange portion 25 that is provided so as to protrude from the lower periphery of the outer wall 21 in a bowl shape, and each window An enlarged finger rest vertical wall portion 26 is provided so as to project from the portion 23.

  The female member 2 is a resin molded product made of polyamide such as nylon 6 which has excellent wear characteristics and moldability. This resin is the same resin material as the mating member or the mating part of the mating member in order to effectively give the option that the female member 2 welds and fixes the flange portion 25 to the mating surface of the mating member. Yes. However, as other configurations, the same resin material as the mating member or the mating member mounting portion or a resin having a melting point close to a portion (such as the lower surface of the flange portion 25 and the bottom wall 20) that contacts the mating surface of the mating member. The material may be coated.

  Here, the outer wall 21 includes an upper surface 21a, both side surfaces 21b and 21b, and a back surface 21c. The window portions 23 on both sides are provided in a state where front and rear intermediate portions are cut out from the top to the bottom wall 20 on both sides of the outer wall. Reference numeral 20a is a through hole on the bottom wall 20 side formed for die cutting. On the upper surface 21 a, a vertical wall portion 26 projects upward corresponding to the upper edge portion of each window portion 23. The vertical wall portion 26 has an outer surface provided continuously with the upper edge portion of the window portion 23, and functions as an extended surface for finger contact in the engagement release operation by expanding the upper edge portion of the window portion 23. To do.

  The bottom wall 20 has a flange portion 25 integrated around it, and the front portion is formed thicker than the rear portion at a location where the lower side of the space portion 22 is defined. Therefore, as shown in FIG. 2, the space 22 has a height (thickness) from the bottom surface to the inner surface of the bottom wall 20 such that the front portion height t1 is higher than the rear portion height t2 (thicker). ), And correspondingly, the space is inclined so as to become lower from the front opening toward the back. For the same reason, the window portion 23 of the outer wall 21 is also in an inclined state that becomes lower from the front to the rear with respect to the lower surface of the bottom wall 20 and the flange portion 25.

  In addition, the bottom wall 20 has a guide wall portion 27 located in the middle of the left and right sides and extending in the front-rear direction on the upper surface in the space portion 22, and guide recesses 28 provided one step lower on both sides of the guide wall portion 27. And escape holes 29 provided on both rear sides of the guide wall portion 27 are provided. Among these, the guide wall portion 27 is joined to the upper surface 11 a of the outer wall 11 on the upper side to divide the space portion 12 into left and right, and the insertion pieces 15 and 15 of the male member are inserted into the space portion 22. In the process, each insertion piece 15 is fitted to the guide portion 18 to be adjusted to a normal position. Each guide recess 28 is formed wider on the front side than on the rear side, and the distance from the guide wall portion 27 gradually decreases from the front to the rear. This is because the above-described protrusion 16 is moved along the end surface of the guide recess 8 in the process in which the male member-side plug-in pieces 15 and 15 are inserted into the space 22, thereby both plug-in pieces 15 and 15. This is because the distance between the pieces decreases as the distance increases. Each escape hole 29 is partially opened including the rear portion of the guide recess 28. This is because when both the plug-in pieces 15 and 15 are inserted to the vicinity of the final position where the protrusion 17 is engaged with the window 23, the protrusion 16 is relieved to the escape hole 29, whereby the distance between the pieces is restored to the original state. Make it possible to return to. In addition, the recessed part 20b is formed in the lower surface of the bottom wall 20 like FIG.6 (b). Further, a recess 21 d corresponding to the guide recess 28 and a recess (not shown) corresponding to the escape hole 29 are also provided on the inner surface of the upper surface 21 a.

  The female member 2 described above is attached to the attached portion of the storage body 4. In this case, the flange portion 25 is positioned on the attachment surface of the storage body 4 and attached by any attachment means such as sewing, welding, or adhesion. In other words, in this configuration, the lower surface of the bottom wall 20 and the flange portion 25 serve as the attachment surface of the female member 2, and moreover, options for attachment means are increased using the flange-like flange portion 25, or the attachment area is enlarged. It is devised to make it easier to increase the fixing strength.

(Functional Features) As shown in FIG. 2A, the above buckle 3 is inserted by, for example, inserting into the space 22 of the female member 2 while holding the male member 1 in the hand. The piece 15 (projection 17 thereof) and the window portion 23 are engaged with each other, whereby a lid or the like can be connected to the storage body 4 via the band member 5. In this case, in this structure, the space 22 and the window 23 of the female member are provided obliquely downward with respect to the mounting surface as described above, and the male member 1 is inserted obliquely downward with respect to the space 22 of the female member. Therefore, the insertion operation becomes good, and the problem that the fingertip hits the housing body 4, that is, the mating member wearing the female member 2 in the process of the insertion operation as mentioned in the problem is solved. Even if it is made thinner and lighter, the operability can be maintained, thereby improving usability.

  Further, the disengagement operation is the same as the conventional one in that the insertion piece portions 15 on both sides exposed at each window portion 23 are pushed into the space portion 22. However, in this structure, when the insertion piece portion 15 exposed to the window portion 23 is pushed inwardly, as a contact portion of the finger, the upper edge portion defining the window portion 23 is continuously provided on the insertion portion portion 15. A push operation can be performed in a state where a finger is in contact with a wider portion across the provided vertical wall portion 26. For this reason, as a pressing operation, it becomes easy to apply a pressing force via a finger, and it becomes possible to perform a favorable pressing operation even when a glove is worn, so that a disengagement operation can be reliably performed even by a weak child or an elderly person. . In addition, the above-described vertical wall portion 26 achieves the advantage that the portion to be pushed becomes clearer and the disengagement operability, while reducing the thickness and weight of the female member 2 and hence the buckle 3. The above configuration is extremely effective.

(Modification) The present invention can be modified as follows on the basis of the above embodiment. That is, the male member 1 described above may form a frame-shaped body or a mounting flange as shown in FIG. 7B as the mounting portion. In this case, the frame-shaped body is attached to the mounting surface of the mating member. In order to effectively give the option of welding and fixing, it is preferable that the mating member or the mounted portion of the mating member is made of the same material. Further, the male member 1 employs a frame-like body and a mounting flange portion as the attachment portion, and the front portion of the insertion piece portion 15 and the guide portion 18 is rearward of the frame-like body and the mounting flange portion. It may be provided in an inclined state that is higher than the portion, and engageable via the engaging portion and the engaged portion while approaching obliquely downward with respect to a space portion 22 of the female member 2 described later . As described above , the buckle of the present invention only needs to substantially include the technical elements specified in claim 1, and the details can be variously changed and deployed as necessary.

(A) And (b) is the top view and side view which show the buckle use state which connected the male / female member of the form example. 1A corresponds to a cross-sectional view taken along the line AA in FIG. 1A, FIG. 1A shows a state before the male / female member is connected, and FIG. 1B shows the connected state. It is a schematic perspective view of the said male member and a female member. The female member single article is shown, (a) is a rear view, (b) is a top view, (c) is a side view, and (d) is a front view. The male member single article is shown, (a) is a rear view, (b) is a top view, (c) is a side view, and (d) is a front view. (A) is the BB sectional view taken on the line of FIG.4 (c), (b) is a bottom view of a female member, (c) is a schematic cross section which shows the engagement state of a male member and a female member. (A) And (b) is a figure for demonstrating the problem of the conventional buckle.

DESCRIPTION OF SYMBOLS 1 ... Male member 2 ... Female member 3 ... Buckle 4 ... Mounted part (mating member) by the side of a storage body
5 ... Band member on the lid side (partner member)
10 ... Mounting part (11 is a latching piece, 12 and 13 are insertion holes)
13 ... Guide part 15 ... Insertion piece part (engagement part)
16 ... Protrusion for pressing 17 ... Protrusion for retaining (engaging portion)
18 ... Guide part 20 ... Bottom wall 21 ... Outer wall (21a is upper surface, 21b is side surface, 21c is rear surface)
22: Space (engaged part)
23 ... Window (engaged part)
27 ... Guide wall part 25 ... Flange part (mounting part)
26 ... Vertical wall for enlarged finger pads

Claims (3)

A male member having an insertion piece portion for an engaging portion, and a space portion for an engaged portion, which is formed in a flat cylindrical shape and can receive the insertion piece portion from a front opening, and defines the space portion. In a buckle comprising a female member provided on a side surface and having a window portion that is exposed so as to be able to push and operate a part of the insertion piece portion, and the female member forms an attachment portion for attachment to a mating member ,
The female member, the space is partitioned and formed between the bottom wall and the opposite concave outer wall of, and, by increasing formation than the rear portion of the front portion as a height from the lower surface of the bottom wall to the inner surface ,
In a state where the lower surface of the bottom wall is attached to the mating member as the attachment surface of the attachment portion, the inside of the space portion is provided obliquely downward with respect to the attachment surface, and becomes an inclined state that becomes lower as going from the front opening to the back. A buckle characterized in that the insertion piece portion of the male member can be engaged with the space portion while approaching obliquely downward.   2. The buckle according to claim 1, wherein the attachment portion of the female member has a flange-like flange portion, and is fixed in a state where the flange portion is in contact with the mating member.   The said attaching part consists of the resin material of the same raw material as the said other member, or has the same material as the said other member, or the raw material with a near melting | fusing point, and has on the surface, It has characterized by the above-mentioned. buckle.

Images