JP2008261363A - Loop clutch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a loop clutch minimizing the deformation of a hook part even if a large tension is applied to the hook part. <P>SOLUTION: This loop clutch comprises a body 2 and a slider 3 slidably attached to the body. The body has the hook part 2 with an opening 21 at one end. The slider is slidable between a first position for opening the opening and a second position for closing it and has an elastically deformable engagement piece 51 at the one end. The loop clutch further comprises an engagement means 54 for engaging the end of the hook part with the end of the engagement piece when the slider is slid to the second position. The engagement means comprises a recessed part 22 formed at the end of the hook part, and a projecting part 53 formed at the end of the engagement piece. The recessed part and the projected part are recessed and are projected in the direction perpendicular to the sliding direction of the slider, respectively. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a ring formed. For example, it relates to an annulus used for detaching a belt or string in bags.

For example, in a shoulder bag having a shoulder belt, a ring formed as a metal fitting for easily removing and attaching the shoulder belt is used.
Conventionally, the ring described in Patent Document 1 is known as a ring used for this type of application.

This is composed of a ring body made of synthetic resin and a slider made of synthetic resin slidably provided at the rear part of the ring body.
The ring main body has a folded piece integrally formed at the tip, and guide grooves are formed on both sides. The slider is integrally formed with a leg piece that is slidably engaged with the guide groove of the ring main body, and a protrusion that closes the opening of the ring main body and the folded piece that is in contact with the tip of the folded piece at the tip. A piece is formed. The folded piece and the projecting piece are formed to have substantially the same thickness, and an engagement piece is formed at the tip of the folded piece and the tip of the projecting piece so as to be in contact with each other in the thickness direction at about half the thickness. .

  Therefore, for example, when a ring member mounted on a belt is hooked on the folded piece of the ring main body and is slid with respect to the ring main body forming the slider, the ring protruding body of the slider comes into contact with the tip of the folded piece. Therefore, the ring member is prevented from coming off from the folded piece of the ring body.

Utility Model Registration No. 2571039

  Since the ring described in Patent Document 1 has a structure in which the tip of the folded piece and the tip of the protruding piece are in contact with each other in the thickness direction with a thickness of about half the thickness, each is a so-called phased structure. When a large tensile force is applied to the folded piece, the folded piece is deformed to the outside, that is, the opening between the ring body and the folded piece is deformed in an expanding direction and may be damaged in some cases.

  An object of the present invention is to solve such problems and to provide a ring that can suppress deformation of the hook portion as much as possible even when a large tensile force is applied to the hook portion.

  The ring according to the present invention includes a main body and a slider provided to be slidable with respect to the main body, the main body includes a hook portion having an opening, and the slider has the opening with respect to the main body. Is provided so as to be slidable between a first position for opening and a second position for closing, and either the main body 2 or the slider 3 approaches or separates from the tip of the hook portion. An engagement piece that is elastically deformable in a direction and that closes or opens the opening, and when the slider is slid to the second position, the tip of the hook portion and the tip of the engagement piece Are engaged in a direction crossing the sliding direction of the slider.

According to this configuration, after a belt or string tip member, for example, a ring member, is hooked on the hook portion of the main body, the slider is slid from the first position to the second position. When the slider is slid to the second position, the tip of the hook portion and the tip of the engaging piece are engaged in a direction intersecting the slider sliding direction.
Therefore, even if a tensile force is applied to the hook part via the ring member, the hook part is engaged with the tip of the engagement piece in the direction intersecting the sliding direction of the slider. Can be prevented from being deformed. That is, the deformation of the hook portion in the direction in which the opening expands can be suppressed as much as possible, so that the hook portion can be prevented from being damaged even if a large tensile force is applied to the hook portion.

In the ring formed according to the present invention, the tip of the hook portion and the tip of the engagement piece are provided with engagement means that engage with each other, and the engagement means includes the tip of the hook portion and the engagement piece. Including a concave portion provided at one of the tip ends, and a convex portion provided at any one of the tip end of the hook portion and the tip end of the engagement piece and engaging with the concave portion. It is preferable that the protrusion is formed to be recessed in a direction intersecting with the sliding direction of the slider, and the convex portion is formed to protrude in a direction intersecting with the sliding direction of the slider.
According to this configuration, when a tensile force is applied to the hook portion, the tensile force acts on the ring formed in the sliding direction of the slider. At this time, the concave and convex portions are provided in such a way that they are recessed or projecting in a direction intersecting with the sliding direction of the slider, that is, the concave and convex portions are not easily detached from the tensile force. Even if a large tensile force is applied to the hook portion, the hook portion can be reliably prevented from being deformed.

In the ring formed by the present invention, the slider has a protruding piece that abuts on a tip of the hook portion when the slider is slid to the second position, and an inner edge of the protruding piece is formed on the hook portion. It is preferable to form a closed space in the hook portion when the opening is closed in cooperation with the inner peripheral edge.
According to this configuration, when the slider is slid to the second position, the protruding piece provided on the slider contacts the tip of the hook portion, and the opening is closed by the inner edge of the protruding piece and the inner peripheral edge of the hook portion. When this is done, a closed space is formed in the hook portion. For this reason, when the ring member hooked on the hook portion comes into contact with the slider, the protruding piece can be prevented from coming into contact with the ring member, and the engagement piece can be prevented from coming into contact with the ring member. It can prevent joining to a piece.
Therefore, since the engagement piece does not elastically deform in the direction away from the hook portion, that is, even when the ring member is displaced in the hook portion, the structure in which the concave portion and the convex portion are difficult to come off can be achieved.

In the ring formed by the present invention, it is preferable that the engaging piece is arranged in parallel with a predetermined gap in the front and back direction of the protruding piece and the slider.
According to this configuration, since the engagement piece and the protruding piece are arranged in parallel with a gap therebetween, that is, each of the engagement pieces is independently configured, the engagement piece is easily elastically deformed. Further, the protruding piece can be formed in a shape that is difficult to deform. Therefore, since it can be configured in a shape corresponding to the function required for each, it is easy to manufacture.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
<Configuration of Embodiment>
FIG. 1 is a perspective view of the ring formed in this embodiment as viewed from the front side, FIG. 2 is a perspective view of the ring formed from the back side, FIG. 3 is a front view showing the usage state of the ring, and FIG. FIG. 5 is a cross-sectional view taken along the line VV in FIG. 4, FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. 5, and FIG. FIG. 8 is a cross-sectional view showing the action (slider rising limit state).

(Description of overall configuration: see FIGS. 1 to 4)
The ring 1 formed in the present embodiment includes a main body 2 and a slider 3 that is slidable with respect to the main body 2. The main body 2 and the slider 3 are combined after being molded by injection molding of a synthetic resin material such as polyacetal or injection compression molding.

(Description of the main body: see FIGS. 1 to 4 and FIGS. 5 and 6)
The main body 2 includes a vertically long rectangular plate-shaped gripping portion 10, a hook portion 20 formed integrally with one end in the length direction of the gripping portion 10 (one end in the sliding direction of the slider 3), and the length direction of the gripping portion 10. The belt connecting portion 30 is formed integrally with the other end.
Guide grooves 11 are opened on the left and right side surfaces in the width direction of the grip portion 10, and the guide grooves 11 are continuous in the length direction of the grip portion 10, that is, from the front of the hook portion 20 to the front of the belt connecting portion 30. Is formed. The guide groove 11 is formed so as to penetrate the inside of the grip portion 10 in the width direction. In addition, an accommodation portion 12 having a depth reaching the guide groove 11 is formed on the surface of the grip portion 10, and an operation portion 17 is formed on the back surface of the grip portion 10.
The accommodating part 12 comprises the space which accommodates the elastic leg piece 15 and the protrusion 43 which are mentioned later, and continues toward the hook part 20 side from the 1st accommodating part 13 and this 1st accommodating part 13. The formed 2nd accommodating part 14 is provided. A pair of elastic leg pieces 15 that protrude integrally from the wall on the belt connecting portion 30 side and incline so as to approach each other toward the hook portion 20 are projected from the first accommodating portion 13. The operation portion 17 is formed in a concave shape that is formed so that the back surface of the grip portion 10 gradually becomes thinner as the back surface of the grip portion 10 moves from the belt connecting portion 30 to the hook portion 20 and then protrudes outward in the vicinity of the hook portion 20. . That is, it is formed in a concave shape where a finger to be operated is caught.

  The hook part 20 is bent and shaped so as to draw about 3/4 circle from one side in the width direction of the grip part 10. That is, draw about 3/4 circle from one side in the width direction of the gripping part 10 to the other side so that an opening 21 of about ¼ circle remains between one end in the length direction of the gripping part 10. It is bent and molded. A recess 22 is formed on the outer peripheral surface of the tip of the hook portion 20. The concave portion 22 is provided so as to be recessed from the outer peripheral surface of the tip of the hook portion 20 in a direction intersecting with an axis connecting the hook portion 20 and the belt connecting portion 30, that is, in a direction intersecting with the direction in which the slider 3 slides. It has been. Here, the slider 3 is provided so as to be recessed in a direction substantially orthogonal to the sliding direction.

  The belt connecting portion 30 includes a pair of arm rods 31 that are formed so as to project away from both sides of the other end of the grip portion 10, and a belt winding rod that is integrally stretched around the ends of the pair of arm rods 31. 32. The belt 1 is inserted into the gap between the pair of arm rods 31 and the belt winding rod 32, and the belt 33 is wound around the belt winding rod 32 and fastened, so that the ring 1 at the tip of the belt 33 is attached. Instead of the belt connecting part 30, a through hole through which a round string can be inserted may be formed to constitute the string connecting part.

(Explanation of slider: See FIGS. 1 to 4 and FIGS. 5 to 8)
The slider 3 includes a cover plate 40 that covers the surface side of the grip portion 10 of the main body 2, a pair of side plates 50 that are integrally bent from both the left and right sides of the cover plate 40 in the width direction, and the side plates 50. And is formed in a C-shaped cross section having an engaging protrusion 60 that is slidably engaged with the guide groove 11 of the body 2 and is formed with an opening 21 with respect to the body 2. Between the 1st position (position of FIG. 8) to open, and the 2nd position (position of FIG. 5) to close, ie, the length direction of the holding part 10, it is provided so that a slide is possible.

On the cover plate 40, an operation portion 41 is formed on the front surface (outer surface) side, and a protrusion 43 that is accommodated in the housing portion 12 of the main body 2 is integrally formed on the back surface (inner surface) side.
The operation portion 41 is formed in a concave spherical shape in which the surface in the length direction one end portion side of the cover plate 40 is formed thinner than the surface in the length direction other end portion side, and the center is recessed with respect to the periphery. In addition, a stepped portion 42 that is inclined from the thin portion toward the thick portion is formed at the thickness boundary. Thereby, when the finger to be operated is applied to the operation unit 41, the belly of the finger is caught on the stepped portion 42. In this state, when the slider 3 is slid from the second position to the first position, the slider 3 can be slid with the finger hooked on the stepped portion 42.
The protrusion 43 has a bottom wall and a pair of slant walls, and is formed in a triangular shape that is inclined so that the pair of slant walls approach each other toward the belt connecting part 30 from both ends of the bottom wall. When the protrusion 43 is accommodated in the accommodating portion 12 of the main body 2 and the slider 3 is slid to the second position, the bottom wall of the protrusion 43 is the wall (hook) of the second accommodating portion 14 of the main body 2. The top of the projection 43 is joined between the pair of elastic leg pieces 15.

Among the side plates 50, the side plate 50 located on the front end side of the hook portion 20 of the main body 2 has an elastically deformable engagement piece 51 and a protrusion arranged parallel to the engagement piece 51 with a predetermined gap. The pieces 57 are integrally formed with each other.
The engaging piece 51 is integrally formed with a flange 52 at the distal end, and a guide surface 55 and an elastic hinge 56 are formed on the proximal end side of the flange 52.
The collar portion 52 is formed in a collar shape having a convex portion 53 that protrudes toward the hook portion 20 at the tip and engages with the concave portion 22 of the hook portion 20. The convex portion 53 is provided so as to protrude in a direction intersecting with an axis connecting the hook portion 20 and the belt connecting portion 30, that is, in a direction intersecting with the direction in which the slider 3 slides. Here, it is provided so as to protrude in a direction substantially orthogonal to the direction in which the slider 3 slides. In the present embodiment, when the slider 3 is slid to the second position, the tip of the hook 20 and the tip of the engaging piece 51 are engaged with each other by the concave portion 22 of the hook portion 20 and the convex portion 53 of the engaging piece 51. Engaging engagement means 54 is configured.
When the slider 3 slides from the second position to the first position, the guide surface 55 is a corner portion of the side wall of the grip portion 10 of the main body 2, that is, a corner portion facing the tip of the hook portion 20 with the opening 21 therebetween. The tip of the engaging piece 51 is elastically deformed in a direction intersecting with the direction in which the slider 3 slides, here, in a direction substantially perpendicular to the sliding direction. Specifically, the guide surface 55 is disposed on the inner surface between the elastic hinge portion 56 and the flange portion 52 of the engagement piece 51 and has a length that can be accommodated in the opening 21 of the hook portion 20. As it goes in the sliding direction, it is formed in a concave arc-shaped surface that gradually approaches and then approaches the side wall that is the sliding surface of the grip portion 10.
The elastic hinge portion 56 is formed in a thin shape by a groove portion formed on the inner surface on the proximal end side of the engagement piece 51. Thereby, the collar part 52 is formed in the structure which is easy to elastically deform in the direction substantially orthogonal to the axis line which connects the hook part 20 and the belt connection part 30. FIG.

  The protruding piece 57 is separated by a slit 58 provided in the side plate 50 of the slider 3 with a gap in the front and back direction of the engaging piece 51 and the slider 3, and when the slider 3 is slid to the second position. Has a length that abuts against the tip of the hook portion 20. Further, the inner edge of the projecting piece 57 extends in an arc shape to the tip of the cover plate 40, and the inner peripheral edge cooperates with the inner peripheral edge of the hook portion 20 when the slider 3 is in the second position to open the opening 21. When the is closed, a substantially circular closed space is formed in the hook portion 20. At this time, the inner edge of the engagement piece 51 may be positioned so as to overlap with the inner peripheral edge of the protruding piece 57 in the front-back direction or on the outer side of the inner peripheral edge, and the inner edge of the engagement piece 51 may protrude into the closed space. Absent.

<Operation and Effect of Embodiment: See FIGS. 1 to 8>
In such a configuration, the slider 3 and the operation portions 41 and 17 of the main body 2 are picked by the fingers to be operated (usually the thumb and the index finger), and the slider 3 is slid from the second position to the first position. At this time, since the slider 3 and the operation portions 41 and 17 of the main body 2 are formed in a concave shape, the finger can be easily placed in the operation portions 41 and 17 and the finger can be easily caught. Can do.

When the slider 3 is slid from the second position to the first position, the elastic leg pieces 15 of the main body 2 are elastically deformed by the protrusions 43 of the slider 3 so as to expand each other. At this time, due to the restoring force of the elastic leg piece 15 of the main body 2, a biasing force is applied to the slider 3 in the direction of returning to the second position.
At the same time, when the slider 3 is slid from the second position to the first position, the front end of the engagement piece 51 is substantially in the sliding direction of the slider 3 by the guide surface 55 provided on the slider 3. Elastically deformed in the orthogonal direction. Then, the protrusion of the engagement piece 51 is caused by the movement of the slider 3 to slide to the first position and the elastic deformation in which the engagement piece 51 swings around the base end of the engagement piece 51, that is, the elastic hinge portion 56. Since the part 53 leaves | separates from the recessed part 22 of the hook part 20 so that a circular arc may be drawn, the engagement state of the recessed part 22 and the convex part 53 can be cancelled | released reasonably.

  At this time, the guide surface 55 is formed in a concave arc-shaped surface so as to make point contact with the side wall of the gripping part 10, that is, the guide surface 55 and the side wall of the gripping part 10 are not excessively in close contact. Even when the finger to be operated is removed from the operation portions 17 and 41 of the main body 2 and the slider 3 and the slider 3 is returned from the first position to the second position, the slider 3 does not return to the second position. Will not occur.

In this way, when the slider 3 is slid from the second position to the first position, the engaging piece 51 and the protruding piece 57 of the slider 3 are retracted from the opening 21 of the hook portion 20, so that the opening of the hook portion 20 is opened. 21 is opened.
In this state, a hook member 20 of the main body 2 is hooked with a tip member of a belt or string, for example, a ring member 70, and then a finger to be operated is removed from the operation parts 17 and 41 of the main body 2 and the slider 3. Then, since the restoring force of the elastic leg piece 15 of the main body 2 acts on the protrusion 43 of the slider 3, the slider 3 is slid from the first position to the second position. When the slider 3 is slid to the second position, the tip of the hook portion 20 and the tip of the engagement piece 51 are engaged with each other by the engagement means 54. That is, the concave portion 22 provided at the tip of the hook portion 20 and the convex portion 53 provided at the tip of the engagement piece 51 are engaged with each other.

Therefore, even if a tensile force is applied to the hook portion 20 via the ring member 70, the tip of the hook portion 20 and the tip of the engagement piece 51 are engaged with each other, so that the hook portion 20 is deformed outward. Can be prevented. That is, since the hook portion 20 is provided at one end of the main body 2 and the belt connecting portion 30 is provided at the other end, when a tensile force is applied to the hook portion 20, the axial direction connecting the hook portion 20 and the belt connecting portion 30 is set. A tensile force acts. At this time, since the concave portion 22 and the convex portion 53 are provided so as to be recessed or projecting in a direction orthogonal to the axis connecting the hook portion 20 and the belt connecting portion 30, that is, against the tensile force. Since the concave portion 22 and the convex portion 53 are structured so as not to easily come off, even if a large tensile force is applied to the hook portion 20, the deformation of the hook portion 20 can be reliably prevented.
Accordingly, the deformation of the hook portion 20 in the direction of expanding the opening 21 can be suppressed as much as possible, so that the hook portion 20 can be prevented from being damaged even when a large tensile force is applied to the hook portion 20.

At this time, when the slider 3 is slid to the second position, the protruding piece 57 provided on the slider 3 comes into contact with the tip of the hook portion 20, and the inner peripheral edge of the protruding piece 57 and the inner peripheral edge of the hook portion 20 are And the opening 21 is closed.
Therefore, when the ring member 70 hooked on the hook portion 20 is displaced and comes into contact with the slider 3, the protruding piece 57 contacts the ring member 70 and prevents the engagement piece 51 and the ring member 70 from contacting each other. It is possible to prevent the tensile force due to 70 from being applied to the engagement piece 51. Therefore, the engagement piece 51 is not elastically deformed in the direction away from the hook portion 20, that is, the concave portion 22 and the convex portion 53 can be hardly detached even when the ring member 70 is displaced. Even if a large tensile force is applied to the hook portion 20 while the 70 is displaced, the deformation of the hook portion 20 can be reliably prevented.

<Modification>
The present invention is not limited to the ring having the structure described in the above embodiment, and includes the following modifications.

(Modification 1)
9 and 10 show a ring 1A formed by the first modification. The ring 1 formed in the above embodiment has a structure in which the engagement piece 51 is elastically deformed toward the outside of the hook portion 20. However, the ring 1 </ b> A formed in Modification 1 has the engagement piece 51 </ b> A on the inside of the hook portion 20. It is a structure that is elastically deformed toward.
The difference from the above embodiment is that the engagement piece 51 </ b> A is formed integrally with the main body 2. The engaging piece 51A is formed to protrude from one end of the main body 2 substantially in parallel to the axis connecting the hook portion 20 and the belt connecting portion 30 to form an elastic hinge portion 56A. After being formed so as to project obliquely toward the rear, it is formed so as to be inclined outward toward the concave portion 22 of the hook portion 20.

  The slider 3 is formed with a guide surface 55A that elastically deforms the engaging piece 51A toward the inside of the hook portion 20. The guide surface 55 </ b> A is formed inside an extension piece 59 that extends from one end of the side plate 50 (side plate 50 positioned on the tip end side of the hook portion 20) toward the tip end of the hook portion 20. It is formed into an inclined surface shape in which the wall thickness increases toward the inside as it goes toward. The distal end of the extension piece 59 comes into contact with the distal end of the hook portion 20 in a state where the slider 3 is slid to the second position.

  In such a configuration, when the slider 3 is slid from the second position (state shown in FIG. 9) to the first position, the guide surface 55A provided on the slider 3 is engaged as shown in FIG. This is elastically deformed inward while abutting on the elastic hinge portion 56A which is the base end portion of the combined piece 51A. Therefore, the front end of the engagement piece 51A is elastic in a direction substantially orthogonal to the axis connecting the hook portion 20 and the belt connecting portion 30, and the convex portion 53 of the engagement piece 51A is separated from the concave portion 22 of the hook portion 20. .

Therefore, according to the ring 1A formed by the modified example 1, the engaging piece 51A is elastically deformed to the inside of the hook portion 20, so that a part of the opening 21 of the hook portion 20 is not blocked by the engaging piece 51A. The opening 21 can be greatly opened. Therefore, there is an advantage that the ring member 70 can be easily hooked on the hook portion 20.
Further, in the state where the slider 3 is slid to the second position, as shown in FIG. 9, the convex portion 53 of the engaging piece 51 </ b> A is engaged with the concave portion 22 from the inside of the hook portion 20. Even if an outward force is applied to the engaging piece 51A due to the displacement of 70, the engagement between the convex portion 53 of the engaging piece 51A and the concave portion 22 of the hook portion 20 is difficult to be disengaged. Moreover, since the extension piece 59 of the slider 3 is positioned outside the hook portion 20 on the outer side, the structure can be more easily removed.

(Modification 2)
FIG. 11 shows a ring 1B formed by the second modification. The ring 1 formed in the above embodiment and the ring 1A formed in the modification 1 have a structure in which the engagement pieces 51 and 51A are elastically deformed outward or inward of the hook portion 20, but the ring 1B formed in the modification 2 is formed. Is a structure in which the engagement piece 51B is elastically deformed in a direction (surface side direction) orthogonal to the elastic deformation direction (inner and outer directions of the hook portion 20) of the engagement pieces 51 and 51A.
The difference from the above embodiment is that the engaging piece 51 </ b> B is formed integrally with the main body 2. The engaging piece 51B is integrally formed by extending from one end of the main body 2 to the concave portion 22 of the hook portion 20, and has a convex portion 53 that engages with the concave portion 22 at the tip, and a thin-walled elastic member at the base portion of the engaging piece 51B. It has a hinge part 56B. Using the elastic hinge portion 56B as an elastic deformation fulcrum, the tip of the engagement piece 51B is separated from the concave portion 22 of the hook portion 20.

  Further, the slider 3 is integrally formed with a projecting piece 57. The protruding piece 57 is formed with a guide surface 55B that abuts the inner surface of the engaging piece 51B and elastically deforms to the surface side (left side in FIG. 11) of the ring 1B that forms the tip of the engaging piece 51B. A protrusion 61 that contacts the guide surface 55B is formed on the inner surface of the engagement piece 51B. The guide surface 55 </ b> B is formed as an arc surface that becomes thinner from the hook portion 20 toward the main body 2. The slider 3 is formed with a notch 62 at a portion where the engaging piece 51B is elastically deformed, and the notch 62 is configured so that the slider 3 and the engaging piece 51B do not come into contact with each other.

In such a configuration, when the slider 3 is slid from the second position to the first position, as shown by a chain line in FIG. 11, the guide surface 55B provided on the slider 3 has the engagement piece 51B. This is elastically deformed to the surface side while abutting the root portion. Therefore, the tip of the engagement piece 51B is elastic in a direction substantially orthogonal to the axis connecting the hook portion 20 and the belt connecting portion 30, and the convex portion 53 of the engagement piece 51B is separated from the concave portion 22 of the hook portion 20. .
Therefore, the ring 1B formed by the modification 2 can be expected to have the same effect as that of the above embodiment.

(Other variations)
In the above embodiment, the concave portion 22 and the convex portion 53 constituting the engaging means 54 are recessed or projecting toward the inside of the hook portion 20, that is, toward the elastic deformation direction of the engaging piece 51. Although it was a structure which is dented or protruded, it is not restricted to this, It goes toward the direction (front surface or back surface side) orthogonal to the elastic deformation direction (inner / outer direction of the hook part 20) of the engagement piece 51. The structure may be recessed or protruding.
For example, as shown in FIG. 12, at the tip of the engagement piece 51, the direction orthogonal to the elastic deformation direction (left-right direction in FIG. 12) of the engagement piece 51, that is, the front side and the back side of the ring 1 formed A convex portion 53 that protrudes in the direction is formed, and a hook portion 23 is integrally formed outwardly at the tip of the hook portion 20, and a T-shaped concave portion 22 is formed from the center of the hook portion 23 to the bottom surface. Has been. Also with this configuration, the same effect as in the above embodiment can be expected.

In the above embodiment, the engaging means 54 is constituted by the concave portion 22 provided at the tip of the hook portion 20 and the convex portion 53 provided at the tip of the engaging piece 51. A similar effect can be expected with a configuration in which a protrusion is provided at the tip of 20 and a recess is provided at the tip of the engagement piece 51.
Further, the concave direction and the protruding direction of the concave portion 22 and the convex portion 53 are orthogonal to the sliding direction of the slider 3 (the axial direction connecting the hook portion 20 and the belt connecting portion 30) as in the above-described embodiments and modifications. Any direction that intersects the sliding direction of the slider 3 with an angle is acceptable.

  In the above-described embodiment, the guide surface 55 is provided on the sliding surface of the slider 3 among the sliding surfaces of the grip portion 10 and the slider 3, that is, the inner surface of the engagement piece 51. You may provide in the sliding surface of the part 10. FIG. However, when the guide surface 55 is provided on the sliding surface of the slider 3, that is, the inner surface of the engaging piece 51, when the slider 3 is slid to the second position, that is, the engaging piece 51 of the slider 3 is hooked. In a state where the tip of the portion 20 is engaged and the opening 21 is closed, the guide surface 55 of the slider 3 is positioned in the opening 21, so that the outer shape of the ring 1 formed can be slim. Therefore, there is an effect that the designability can be improved.

  In the above embodiment, the main body 2 and the slider 3 are both made of synthetic resin, but only one of them may be made of synthetic resin, or both the main body 2 and the slider 3 may be made of metal. . Depending on the type or structure of the metal used, the rigidity may be low. Even in such a case, the ring of the present invention can deform the hook even if a large tensile force is applied to the hook. Can be suppressed.

  The present invention is suitable as a ring for detaching and attaching a shoulder belt in bags, but can be used for any other application as long as it can detach a belt or a string.

The perspective view which looked at the ring which embodiment of this invention made from the surface side. The perspective view which looked at the ring which embodiment same as the above made from the back side. The front view which shows the use condition of the ring which embodiment same as the above forms. The side view which shows the state which hold | gripped the ring which embodiment same as the above forms. VV sectional view taken on the line of FIG. FIG. 6 is a sectional view taken along line VI-VI in FIG. 5. Sectional drawing which shows the effect | action (a state which raises a slider) which the ring which embodiment same as the above forms. Sectional drawing which shows the effect | action (a slider is a raise limit state) of the ring | wheel which embodiment same as the above. Sectional drawing which shows the ring (closed state) which the modification 1 of this invention makes. Sectional drawing which shows the ring (open state) which the modification 1 same as the above forms. Sectional drawing which shows the ring | wheel which the modification 2 of this invention makes. The perspective view which shows the modification of a convex part and a recessed part in the ring | wheel which this invention makes.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Ring made, 2 ... Main body, 3 ... Slider, 17 ... Operation part, 20 ... Hook part, 21 ... Opening, 22 ... Concave part, 41 ... Operation part, 51, 51A, 51B ... Engagement piece, 53 ... Convex part 54 ... engaging means, 55, 55A, 55B ... guide surface, 58 ... slit.

Claims (4)

A main body 2 and a slider 3 provided to be slidable with respect to the main body 2;
The main body 2 has a hook part 20 having an opening 21;
The slider 3 is provided to be slidable between a first position where the opening 21 is opened and a second position where the slider 21 is closed with respect to the main body 2;
Either one of the main body 2 and the slider 3 can be elastically deformed in a direction approaching or separating from the tip of the hook portion 20, and can be engaged pieces 51, 51 </ b> A that close or open the opening 21. , 51B,
When the slider 3 is slid to the second position, the tip of the hook portion 20 and the tip of the engagement piece 51 are engaged in a direction intersecting the sliding direction of the slider 3. The ring that makes. Engaging means 54 that engage with each other is provided at the tip of the hook portion 20 and the tips of the engagement pieces 51, 51A, 51B,
The engaging means 54 includes a recess 22 provided at any one of the tip of the hook portion 20 and the tips of the engagement pieces 51, 51A, 51B, the tip of the hook portion 20, and the engagement pieces 51, 51A, 51B is provided including the convex portion 53 provided on the other end of the tip and engaging with the concave portion 22;
The concave portion 22 is formed to be recessed in a direction intersecting the sliding direction of the slider 3, and the convex portion 53 is formed to project in a direction intersecting the sliding direction of the slider 3. Item 4. A ring formed according to Item 1. The slider 3 has a protruding piece 57 that comes into contact with the tip of the hook portion 20 when the slider 3 is slid to the second position.
The inner edge of the protruding piece 57 forms a closed space in the hook portion 20 in cooperation with the inner peripheral edge of the hook portion 20 when the opening 21 is closed. Ring described.   4. The ring according to claim 3, wherein the engagement piece 51 is arranged in parallel with a predetermined gap in the front and back direction of the projecting piece 57 and the slider.

Images