JPH05111405A - Attachable and detachable male and female type buckle - Google Patents

Abstract

PURPOSE: To prevent a cord or strip from twisting caused by reverse engagement of a male-female type releasable buckle by introducing such an arrangement that the male member is engaged with the female member only in the specific position. CONSTITUTION: This male-female type releasable buckle is composed of a female member 2 and a male member 3 equipped with a flexible arm 5 which intrudes into the female member to engage it, wherein the male member 3 is furnished with a rigid arm 7 having a Y-section protrusive parallel with the flexible arm 5 and intruding into the female member while the female member is provided with guide devices 13 and 14 mating with the Y-section shape of the rigid arm 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a removable male and female buckle molded from a synthetic resin material.

[0002]

2. Description of the Related Art Italian Patent No. 1,097,695, the contents of which are included here for reference only if necessary, discloses a device for joining strips of sheet material, such as a belt or trouser suspension, and A male member having two flexible lateral arms and a base having one rigid central arm protruding from the base; a front entrance; and two lateral members defining an inner seat for housing the male member. And a female member defined by a box body having a through opening. The female member typically also has a coupling device for the strip of sheet material, which upon engagement cooperates with a rigid central arm to guide the engagement and then fits snugly into the opening of the female member. Engagement by the respective teeth of the flexible arm to limit displacement of the male member to one plane and provide reinforcement, e.g. of the flexible arm inwardly of the female member due to torsional stress on the buckle. It also has a guide device for continuously supporting the central arm to limit deflection and thus prevent inadvertent release of the buckle. The above-mentioned type of buckle, in particular, has excellent performance and inconvenient use by allowing engagement regardless of whether the male member is inserted face up or face down. And give.

[0003]

While the features described above are advantageous for some applications, for other applications the buckle may have a complex shape or may be worn by the user. It is a drawback when used to join strips of sheet material (belts, laces, trouser suspensions, etc.). In such a case, inadvertent rotation of the male member results in twisting and distortion of the strip material to be joined, which may then be worn or worn on the user's body, such as a garment, trouser slings or something else. In some cases, this causes discomfort to the user and, eventually, entanglement of the strips connected to the buckle.

[0004]

SUMMARY OF THE INVENTION The object of the present invention is that it can be made of resin and is made in Italy Patent No. 1,097,69.
A removable male and female buckle of the type described in No. 5 which is constructed to overcome the aforementioned drawbacks of a removable male and female buckle, i.e. allowing engagement with the male member only in position relative to the female member. Is to provide.

In accordance with the present invention, a removable male and female mold comprising a female member and a male member configured to snap into the interior of the seat of the female portion and cooperate in a sliding manner with the female member. A buckle is provided which allows the male member and the female member to be inserted into the seat only by the male member in a predetermined engagement position with respect to the female member, A guide device cooperating with each other, wherein the male member is coplanar with the female member and has an opposing surface at a predetermined position relative to the respective opposing surfaces of the female member. And

A non-limiting preferred embodiment of the present invention will now be described by way of example only with reference to the accompanying drawings.

[0007]

1 is a female member or female element 2;
3 shows a removable male and female buckle having a male member or a male element 3 and molded from a synthetic resin material, the male member 3 snapping into a seat 20 inside the female member 2 at a predetermined engagement position ( FIG. 3) cooperates with the female member 2 in a manner of sliding in the direction of the arrow in FIG. The buckle 1 is provided for releasably engaging strips of sheet material such as the well known belts, laces and trouser suspensions (not shown), for which purpose both the female member 2 and the male member 3 are , Having respective known engagement devices 8, 8a,
The device 8a also has in a known manner (not shown) a continuous adjustment of the length of the strings or strips that engage it.

The above-mentioned Italian Patent No. 1,097,695, the contents of which are described here for reference only, if necessary.
In the illustrated example corresponding to No. 2, the female member 2 is the inner seat 2
0 and the front opening 2 for insertion of the male member 3 into the seat 20
1 and two opposite longitudinal transverse through openings 22 which are perpendicular to the opening 21 ie parallel to the direction of insertion of the male member 3 into the female member 2 as indicated by the arrow in FIG. Is bounded by a substantially parallelepiped box body. As shown in FIGS. 4 and 5, the male member 3 has a generally E-shaped horizontal cross section and cooperates with the respective edge 16 of the opening 22 in the engaged position shown in FIG. Male member 3 inside
Two symmetrical and elastically deformable longitudinal transverse arms 5 with teeth 6 for fixing the third and a third fairly rigid arm 7 arranged between the flexible transverse arms 5, 5. With and arm 7
Allows the arm 7 to continuously support the rigid arm 7 and limit deflection of the arm 5 in the direction of the arrow in FIG. 4 prior to engagement of the male and female members 2, 3 and especially after engagement. Thus, it cooperates with the guide device inside the seat 20 at the beginning of engagement, during engagement and after engagement shown in FIG. In the illustrated example, the guide device is formed inside the seat 20 over the entire length of the seat 20 parallel to the insertion direction of the male member 3 into the female member 2, and the upper and lower longitudinal ribs of the arm 7 facing each other are formed. Has two opposing longitudinal grooves 13, 14 configured to receive in a generally slidable manner.

According to the invention, both the male and female members 2, 3 of the buckle 1 cooperate with each other such that the male member 3 can only be inserted into the seat 20 in the predetermined position shown in FIGS. Device, wherein the male member 3 is replaced by the female member 2
A seat 20 that is on the same plane as that of the female member 2 and has grooves 13 and 14 formed on the respective facing surfaces of the female member 2 in the illustrated example.
Of the first and second inner side surfaces 32 and 33 (in this example, the ceiling surface 32 and the floor surface 33) facing each other, the male member 3 has the facing surfaces 30 and 31 at predetermined positions (in this example, Top 3
0, bottom surface 31). In particular, the mutually cooperating device comprises a rigid arm 7 of a male member and grooves 13, 14 formed in the facing ceiling surface 32 and floor surface 33 of a seat 20 of a female member. According to a main feature of the invention, the rigid arm 7 and the seat 20
Both guide elements (grooves 13, 14 in the illustrated example) lie in the position in which both male and female members 2, 3 are engaged therethrough, and of the opposing ceiling surface 32, floor surface 33 of seat 20. It has an asymmetric cross-section with respect to the central plane α (FIGS. 1 and 3) arranged parallel to each other.

In the illustrated example, the rigid arm 7 has two longitudinal edges or ribs 35, 36 separated by a groove 37 on the upper surface 30 and a single longitudinal length which corresponds approximately to the groove 37 on the upper surface on the lower surface 31. It has a Y-shaped cross section defined by directional edges or ribs 38. Groove 1 shown in FIG.
3, 14 are formed symmetrically with respect to the vertical axis, but differ in width. The narrow groove 14 is configured to accommodate the ribs 38 of the Y-arm 7 in a sliding and substantially slack manner, while the wide groove 13 is configured to accommodate the respective opposing sidewalls 39, 4
Both ribs 35 and 36 are slid toward 0 (FIG. 5) to be accommodated in a substantially loose manner. Also, the guide element of the female member 2 is preferably configured to engage in a groove 37 of the arm 7 in a sliding manner when the male and female members 2, 3 are engaged, and a centerline inside the groove 13. Longitudinal projections 41 extending along
Is equipped with.

The engagement position of the tooth 6 is defined by the axial shoulder 10 of the male member 3 which contacts the corresponding axial shoulder of the female member 2 defined by the peripheral edge 11 of the front face of the opening 21, which shoulder In the example shown, 10 is defined by the front edge of the cross piece 50 with the arms 5, 7 projecting from the cross piece 50.
In the example shown, the coupling devices 8, 8a for the stop of the sheet material, which are engaged by the buckle 1, are integrally formed on the male and female members 2, 3 respectively, the device 8 comprising a seat 20 opposite the opening 21. Formed at the end 24 of the device, the device 8a is
Formed in.

The buckle 1 is made in Italy Patent No. 1,09.
No. 7,695, the only difference being that the buckle is engageable with the male member 3 only in position relative to the female member 2, i.e. the ceiling surface 32 of the seat 20.
That is, only the upper surface 30 and the lower surface 31 facing the floor surface 33 can be engaged with each other. On the contrary, one member is rotated by 180 ° with respect to the above position, that is, the lower surface 31 faces the ceiling surface 32 and the upper surface 30 faces the floor surface 33, and the male member is inserted into the female member. It is impossible to do. In the first case, in practice, the ribs 35, 36, 38 engage the tooth 6 in the opening 22 until the shoulder 10 contacts the edge 11, and thus snaps into the edge 16. At this time, the arm 5 that springs back is bent so that the male member 3 is accurately engaged with the grooves 13 and 14 so that the male member 3 can slide inside the female member 2 in parallel to the plane α. On the other hand, in the second case, the ribs 35, 36 are
1 and is located facing the groove 14 which is smaller than the distance between the ribs 35, 36, while the rib 38 interferes with the projection 41, if present.

[0013]

Thus, when engaging the buckle 1, the user is protected against inadvertently reversing the correct mutual position of the male and female members 2,3 and thus the male and female members 2,3.
It prevents the cords or stops of the sheet material to be joined together (to the device 8, 8a in the example shown) from twisting or distorting.
This not only prevents the strip from cutting or tangling, but also to the user in the case of a buckle 1 used for a garment, trouser suspension or any other item worn or worn on the user's body. Prevents the discomfort of.

[Brief description of drawings]

FIG. 1 is a vertical longitudinal sectional view of a buckle according to the present invention in a released position.

FIG. 2 is a plan view of the buckle of FIG. 1 in an engaged position.

3 is a cross-sectional view of the engaged buckle of FIG.

FIG. 4 is a plan view of the female member cut along the line α of FIG. 1 and the male member in the released position.

5 is a bottom view of the female portion taken along line α of FIG. 1 and the male member in the released position.

[Explanation of symbols]

 1 Removable Male-Male Buckle 2 Female Member 3 Male Member 5 Lateral Arm 6 Teeth 7 Rigid Arm 13 Longitudinal Groove 14 Longitudinal Groove 16 Edge 20 Internal Seat 21 Front Opening 22 Side Through Opening 30 Side (Top) 31 surface (bottom surface) 32 first inner side surface (ceiling surface) 33 second inner side surface (floor surface) 35 longitudinal rib 36 longitudinal rib 37 groove 38 single longitudinal rib 41 longitudinal protrusion α center plane

Claims (6)

[Claims] 1. A female member (2) and a female member (2) configured to cooperate in a sliding manner with the female member (2) to snap into the interior of a seat (20) of the female member (2). A removable male and female buckle (1) comprising a male member (3), wherein the male member (3) and the female member (2) are in a predetermined engagement position with respect to the male member (2). A guide device (7, 13, 14) which allows the male member (3) to be inserted into the seat (20) only by (3) and cooperates with each other,
The male member 3 is in the same plane as the female member (2),
A detachable male-and-male buckle having an opposing surface (30, 31) at a predetermined position with respect to the opposing surface (32, 33) of the female member (2). 2. A removable male and female buckle according to claim 1, wherein the female member (2) is a front opening for insertion of the male member (3) into the seat (20). (21) and two opposing longitudinal lateral through openings (22), defined by a box body containing the seat (20), the male member (3) being approximately E The female member (2) has a horizontal cross section and has a horizontal through opening (2).
2 elastically deformable with teeth (6) for fixing the male member (3) inside the female member (2) by cooperating with respective edges (16) of 2) A longitudinal longitudinal arm (5) and a third fairly rigid arm (7) disposed between the flexible lateral arms (5), (5), the rigid arm being continuous. Elements (13,14,41) formed along the entire length of the seat (20) of the female member (2) so as to be supported in a flexible manner to limit the deflection of the flexible arm (5). Removable male and female buckle characterized by cooperating with. 3. The removable male and female buckle according to claim 2, wherein the mutually cooperating guide device comprises the rigid arm (7) and the guide element (13 ,,) of the female member (2). 14, 41) and the guide element (1
3, 14, 41) are the ribs (3) of the rigid arms (7) respectively.
5, 36, 38) for engaging and respectively receiving a first inner side surface (32) and a second inner side surface (3) of said seat (20).
3) partially formed, said rigid arm (7) and said guide element (13, 14, 41) through which both male and female members (2), (3) of said buckle (1) pass. It has a cross-section asymmetric with respect to the central plane (α) lying in the engaged position, which plane (α) is the inner side surface (3) of the seat (20).
2, 33), which is arranged parallel to and between the male and female buckles. 4. The removable male and female buckle according to claim 3, wherein the rigid arm (7) is provided with two longitudinal ribs (35, 36) separated by a groove (37). 3) limited to the first side (30) and opposite the first side (30) by a single longitudinal rib (38) corresponding approximately to the groove (37). Removable male and female buckle, characterized in that it has a Y-shaped cross section limited to said second surface (31) of member (3). 5. The removable male and female buckle according to claim 3 or 4, wherein the guide element of the female member (2) comprises the first and second inner surfaces of the seat (20). Removable male and female buckle, characterized in that it has two longitudinal grooves (13, 14) of different widths formed facing each other (32, 33). 6. The removable male and female buckle according to claim 5, wherein the guide element is formed on the inner surface (32, 33) of the seat (20) of the female member (2). Buckle also characterized in that it also has a longitudinal projection (41) along the centerline of the widest groove (13) of the groove.