JP2025031601A - Clasp fastener for attaching metal fittings to purses - Google Patents

Abstract

To provide a clamping tool for fastening a metal fitting of a purse, when fixing objects composed of different materials and shapes such as a metal fitting and a fabric, with an adhesive in a purse, capable of rationally temporarily fixing them.SOLUTION: A clamping tool for fastening a metal fitting of a purse includes one rotational member 10 and the other rotational member 20 provided so as to be rotationally turned using a midpoint, the contact point thereof, as a rotational axis, where tips of the one rotational member 10 and the other rotational member 20 can clamp objects by energizing force of a rotational-turning restriction spring 30. The clamping tool includes: at the tip of the one rotational member 10, a clamping claw 11 that is bent at an acute angle in a clamping direction to be formed into a spatula-like protruding shape, and that comes into contact with the objects at the tip to apply pressure thereto; and, at the tip of the other rotational member 20, a pressure receiving surface 21, the surface coming into contact with and clamping an outer curved surface of the metal fitting 51 of the purse and also receiving clamping force from the clamping claw 11, the pressure receiving surface formed long forward and having an anti-slip member 25 made of rubber.SELECTED DRAWING: Figure 1

Description

This invention relates to a clamping device for attaching metal fittings to a purse, in which one rotating member and the other rotating member are arranged so that they can rotate around a fulcrum at the midpoint where they contact each other, and the tips of the one rotating member and the other rotating member can clamp an object by the biasing force of a rotation restricting spring.

A sewing clip used to temporarily hold fabric in place when sewing or doing needlework has been proposed that has a lower member, an upper member, and a spring member that applies a biasing force to the lower and upper members, and the openings of the lower and upper members are provided with multiple pairs of recesses and protrusions that fit together when the openings are closed (Patent Document 1).

Design Registration No. 1569734 (front view)

The problem that we are trying to solve with regard to the clamping device for attaching metal fittings to purses is that while conventional sewing clips can be used effectively when simply temporarily fastening pieces of fabric together, it is difficult to adequately temporarily fasten the metal fittings and fabric when pushing the fabric into the inside of the metal fittings with a U-shaped cross section, such as when joining the metal fittings with a U-shaped cross section that make up the opening of the purse to the sheet material (fabric) such as fabric or leather that makes up the pouch of the purse.

The object of the present invention is to provide a clamping device for fastening metal fittings to a purse that can be used to temporarily fasten objects made of different materials and shapes, such as the metal fittings of the purse and the fabric of the purse pouch, with adhesive in a rational manner.

In order to achieve the above object, the present invention has the following configuration.
According to one embodiment of the clamping device for attaching metal fittings to a purse according to the present invention, one rotating member and the other rotating member are arranged to be able to rotate around a mutually contacting intermediate portion as a rotation axis, and the tip ends of the one rotating member and the other rotating member can clamp an object by the biasing force of a rotation restricting spring, and the clamping device for attaching metal fittings to a purse is used for temporarily fastening a metal fitting of the purse having a U-shaped cross section that constitutes the opening of the purse to an edge portion of a sheet-like member that constitutes the bag portion of the purse, and a clamping claw portion is provided at the tip end of the one rotating member, which is formed in a spatula-like shape protruding in the clamping direction and is capable of abutting at its tip against the object to apply pressure, and the clamping claw portion advances toward an inner bottom portion on the inside of the metal fitting of the purse having a U-shaped cross section and clamps the object at the inner bottom portion. one of the rotating members has a thickness in the front-to-rear direction, which is the longitudinal direction of the one of the rotating members, and a length protruding in the clamping direction, so that the edge portion of the sheet-like member can be temporarily fixed in a state in which it is pressed and compressed together with the string member, and a pressure-receiving surface is provided at the tip of the other of the rotating members which abuts against and clamps an outer curved surface portion which is on the outside of the metal fittings of the purse and is a curved portion having a U-shaped cross section, and which receives the clamping pressure from the clamping claw portion, the pressure-receiving surface is formed longer forward than the front-to-rear tip of the clamping claw portion, the clamping claw portion protrudes in the rotation direction from a rotation plane which is defined as a plane that rotates through the rotation axis, and is bent at an acuter angle than the tip of the one of the rotating members bent at a right angle in the rotation direction, and the pressure-receiving surface is provided by an anti-slip member made of rubber.

According to one embodiment of the clamping device for attaching metal fittings to a purse of the present invention, the left and right corners of the tip of the clamping claw are cut out so as to taper toward the tip of the clamping claw.

As a result, the corners of the tip of the clamping claw are rounded, so that the tip of the clamping claw can be inserted properly and easily into the inside of the metal fittings of the purse, and the pressing force of the tip of the clamping claw can be concentrated. This can improve workability and the temporary fastening effect.

According to one embodiment of the clamping device for attaching metal fittings to a purse of the present invention, the pressure-receiving surface is formed by fitting a cap-shaped anti-slip member made of rubber material onto the tip end of the other rotating member from the tip end side of the tip end.

This allows the pressure-receiving surface at the tip of the other rotating member to be appropriately and easily formed. In other words, this rubber anti-slip member is easy to attach because it is cap-shaped, is durable and does not easily come off when in use, and can be appropriately held in place by abutting against the outside of the metal fittings of the purse to prevent slipping.

The clamping device for attaching metal fittings to a purse of the present invention has the special advantage of being able to provide a rational temporary fixation when using adhesive to fasten objects made of different materials and shapes, such as metal fittings and fabric, to a purse.

1 is a perspective view showing an example of a clamping device for attaching metal fittings to a purse according to the present invention. FIG. FIG. 2 is a side view of the embodiment of FIG. 1 . FIG. 2 is a cross-sectional view of the embodiment of FIG. 1 . FIG. 2 is an exploded view of a pair of rotating members in the embodiment of FIG. 1 . FIG. 2 is a perspective view showing a state in which the embodiment of FIG. 1 is used to produce a purse. FIG. 2 is a side view (including a cross section of the purse, which is the subject of the embodiment) showing a state in which the embodiment of FIG. 1 is used to produce a purse. FIG. 2 is a perspective view showing the process of making a purse. FIG. 1 is a perspective view showing an example of a configuration in which a cap-shaped anti-slip member made of rubber is used in a clamping device for attaching metal fittings to a purse according to the present invention. FIG. 9 is a side view showing the bending (bending) angle α of the clamping claw portion provided in a form in which the tip portion of one of the rotating members in the embodiment of FIG. 8 is bent, and showing the state in which a cap-shaped anti-slip member made of rubber is not attached. FIG. 2 is a side view showing a state in which the embodiment of the present invention is used. FIG. 13 is a side view showing a state of use according to a comparative embodiment.

Below, examples of clamping devices for attaching metal fittings to a purse according to the present invention will be described in detail with reference to the drawings (Figs. 1 to 6).

The basic structure of the clamping device for attaching metal fittings to a purse according to the present invention is similar to that of a clothes peg, with one rotating member 10 and the other rotating member 20 being arranged so that they can rotate around the midpoint where they come into contact as a fulcrum (rotation axis 15 (see FIG. 9)), and the tips of the one rotating member 10 and the other rotating member 20 are arranged so that they can clamp an object by the biasing force of a rotation restricting spring 30 (elastic spring member).

In this embodiment, a convex fulcrum portion 12 that protrudes from the spherical surface as a fulcrum is provided at the midpoint of one rotating member 10, and a concave fulcrum portion 22 that is recessed into the spherical surface as a fulcrum is provided at the midpoint of the other rotating member 20. The convex fulcrum portion 12 is fitted into the concave fulcrum portion 22 when assembled, so that one rotating member 10 and the other rotating member 20 can rotate so that their tips move toward and away from each other. To operate the rotation, one operating portion 13 at the rear end side of one rotating member 10 and the other operating portion 23 at the rear end side of the other rotating member 20 can be pinched with fingers.

In the clamping device for attaching metal fittings to a purse according to the present invention, the tip of one of the rotating members 10 is provided with a clamping claw portion 11 that is formed in a spatula-like (flat plate-like) shape protruding in the clamping direction and can apply pressure by abutting the tip against an object. In this embodiment, the clamping claw portion 11 is provided in a shape obtained by bending the tip of one of the rotating members 10. The tip of one of the rotating members 10 has a required width (about 10 mm in this embodiment) in the left-right direction (width direction relative to the longitudinal direction of one of the rotating members 10) perpendicular to the rotation direction, protrudes in a thin spatula-like shape in the thickness direction (front-back direction), and is also tapered (tapered) in the width direction (left-right direction) so that the tip is in the shape of a rectangle with a pair of corners removed and becomes the shape of the upper side of a trapezoid. The tip of the clamping claw 11 does not need to be sharp, and may be linear and extend in the left-right direction with a required width (thickness) in the front-rear direction as shown in the drawing, with rounded corners. It is sufficient that the shape applies pressure in a concentrated manner, at least compared to the pressure-receiving surface 21 of the other rotating member 20, which will be described later.

In addition, in the clamping device for attaching metal fittings to a purse according to the present invention, the tip of the other rotating member 20 is the surface that contacts and clamps the object, and also serves as the pressure-receiving surface 21 that receives the clamping pressure from the clamping claws 11. In this embodiment, the pressure-receiving surface 21 is a simple, smooth, flat rectangular surface, but this is not limited to this. Of course, in order to prevent the object from slipping, for example, if the surface that the object is contacted is a convex curved surface, the pressure-receiving surface 21 may be a concave surface that is gentler than the convex curved surface, or may have unevenness formed to prevent slipping.

This has the special advantage of being able to temporarily fasten objects made of different materials, such as metal fittings and fabric (cloth or sheet material), in a rational manner when they are to be attached with adhesive. That is, the tip of one of the rotating members 10 is a clamping claw 11, which is shaped to concentrate pressure, and depending on the conditions of use, the object can be appropriately clamped and temporarily fastened, which can significantly improve the work efficiency when making certain items that contain fabric or sheet material in handicrafts, such as a purse 50 (see Figure 5).

In this embodiment, the clamping claw portion 11 is flat and has a thickness and length that allows it to enter the inside of the metal fitting 51 (see FIG. 5) of the purse 50, which has a U-shaped cross section. As a result, as shown in the cross-sectional view of FIG. 6, when manufacturing the purse 50, the string member 53 (stranded string) can be pressed down by the force of the rotation restriction spring 30 so as to hold the fabric 52 and the string member 53 (stranded string) in a pressed state inside the metal fitting 51 to which adhesive 54 is applied, and can be temporarily fixed in an appropriate manner.

The process for attaching metal fittings 51 to a purse 50 involves using a spatula 60 to push the string member 53 together with the fabric 52 into the inside of the metal fittings 51 that have adhesive 54 in them, so that they bite into the inside, as shown in Figure 7. Then, as shown in Figures 5 and 6, a clamp for attaching metal fittings to a purse according to the present invention is used to fasten the part where the fabric 52 and string member 53 are inserted, preventing the fabric 52 and string member 53 from slipping out and allowing the insertion and gluing operations to be carried out smoothly.

In addition, in this embodiment, the pressure-receiving surface 21 is provided with an anti-slip member 25. This anti-slip member 25 can be made of a rubber material (e.g., silicone rubber), and may be provided so as to form a layer on the pressure-receiving surface 21 as shown in the drawing, or may be attached so as to be wrapped around the tip of the other rotating member 20, and may be fixed in place as appropriate. This can prevent the object (engaged object) from slipping as much as possible, and can properly clamp the object.

In addition, in this embodiment, the rotation restriction spring 30 is provided by forming a plate-like metal elastic member into a substantially U-shape. This allows the conventionally used rotation restriction spring 30 to be used to appropriately configure the clamping device for attaching metal fittings to a purse according to the present invention.

Next, based on Figures 8 and 9, an embodiment in which a cap-shaped rubber anti-slip member 25A is used in the clamping device for attaching metal fittings to a purse according to the present invention will be described.

In this embodiment, similar to the above embodiment, one rotating member 10 and the other rotating member 20 are arranged so that they can rotate around the midpoint where they contact each other as a rotation axis 15 (see FIG. 9), and the tip ends of the one rotating member 10 and the other rotating member 20 can clamp an object by the biasing force of a rotation restricting spring (not shown), and the clamping device serves as a temporary fastener for fastening a metal fitting 51 of a purse with a U-shaped cross section that constitutes the opening of the purse to an edge portion 52a of a sheet-like member 52 that constitutes the bag portion (fabric 52) of the purse.

As in the above-mentioned embodiment, the tip of one of the rotating members 10 is provided with a clamping claw 11 that is formed in a spatula-like shape protruding in the clamping direction and can apply pressure by abutting the tip against the object, and the clamping claw 11 has a thickness in the front-to-rear direction, which is the longitudinal direction of the one of the rotating members 10, and a length that protrudes in the clamping direction so that the clamping claw 11 can enter toward the inner bottom 51a inside the metal fitting 51 of the purse, which has a U-shaped cross section, and press the edge portion 52a of the sheet-like member 52 together with the string member 53 at the inner bottom 51a to temporarily secure the sheet-like member 52.

As in the above-mentioned embodiment, the tip of the other rotating member 20 is provided with a pressure-receiving surface 21 that abuts against and clamps the outer curved surface 51b, which is a curved portion with a U-shaped cross section on the outside of the metal fitting 51 of the purse, and receives the clamping pressure from the clamping claw 11, and the pressure-receiving surface 21 is formed longer forward than the front-rear tip of the clamping claw 11. The pressure-receiving surface 21 is provided by a non-slip member 25A made of rubber.

In the embodiment shown in FIG. 8, the pressure-receiving surface 21 is formed by fitting a cap-shaped anti-slip member 25A made of rubber onto the tip end of the other rotating member 20 from the tip end side of the tip end.

This allows the pressure-receiving surface 21 provided at the tip of the other rotating member 20 to be appropriately and easily formed. In other words, this rubber anti-slip member 25A is cap-shaped, so it is easy to attach just by putting it on, is durable and does not easily come off when in use, and appropriately abuts against the outside of the metal fittings 51 of the purse, holding the metal fittings 51 of the purse without slipping due to elastic deformation and frictional force.

Furthermore, as in the above-mentioned embodiment, as is clear from FIG. 9, the clamping claw portion 11 is provided in a form that protrudes in the rotation direction from the rotation surface defined as a plane that rotates through the rotation axis 15, and is bent at an acute angle α, which is greater than the form in which the tip of one of the rotating members 10 is bent at a right angle in the rotation direction. That is, the rotation surface 10a, which is a flat surface that passes through the rotation axis 15 and extends to the base of the clamping claw portion 11, and the bending surface 11a, which is virtually defined as a flat surface that passes through the center of the clamping claw portion 11 bent from the rotation surface 10a, intersect at an acute angle α in a claw-like shape. Note that this angle is about 65 degrees in the embodiment shown in FIG. 9, but it is not limited to this and may be any acute angle, and may be set appropriately in the range of, for example, 55 degrees to 80 degrees, more preferably 60 degrees to 75 degrees.

When the clamping claws 11 are bent at an acute angle α, as shown in FIG. 6 and other figures, the tips of the clamping claws 11 come into contact with the object (string member 53 in the example shown in FIG. 6) and apply a clamping pressure in a direction that pulls the object inward, and the anti-slip effect is enhanced by the elastic deformation and frictional resistance of the rubber anti-slip member 25 that receives the clamping pressure, providing the particularly advantageous effect of making it easier to temporarily fasten the metal fittings 51 of the purse 50 when attaching them.

In particular, according to FIG. 10 showing an embodiment of the present invention, the clamping claw portion 11 is bent at an acute angle, so that the tip of the clamping claw portion 11 is easily pressed so as to crush the sheet-like member 52, string member 53, and other members straight into the inner bottom portion 51a of the metal fitting 51 of the purse, and the pressure-receiving surface 21 is easily pressed against the center of the arc of the outer curved surface portion 51b, which is a curved portion with a U-shaped cross section on the outside of the metal fitting 51 of the purse. Therefore, according to the present invention, the sheet-like member 52 can be temporarily fixed appropriately and reliably.

In contrast, in Figure 11, which shows a comparative example, the clamping claw portion 11 is bent at a right angle, and the tip of the clamping claw portion 11 is not angled to easily push the string member 53 etc. straight into the inner bottom portion 51a of the purse metal fitting 51, and the pressure-receiving surface 21 is not shaped to abut against the center of the arc of the outer curved surface portion 51b.

In addition, according to the present invention, the tip of the clamping claw portion 11 can apply a clamping force in the direction of the scraping, so that a component force of the clamping force (pressure) acts through the metal fittings 51 of the purse 50 in the direction in which the cap-shaped rubber anti-slip member 25A fits onto the tip of the rotating member 20, making it difficult for the cap-shaped rubber anti-slip member 25A to come off, allowing for stable operation.

In the embodiment shown in FIG. 8, like the embodiment described above, the left and right corners of the tip of the clamping claw 11 are cut out so that they taper toward the tip of the clamping claw 11. In other words, in this embodiment, a tip notch 11b (see FIG. 8) is formed on both the left and right sides of the tip of the clamping claw 11. Note that this tip notch 11b is cut in a straight line, but is not limited to this, and it can of course be cut out in a rounded shape like the tip of the spatula 60 shown in FIG. 7.

As a result, the corners of the tip of the clamping claw portion 11 are rounded off, making it less likely to get caught, and the tip of the clamping claw portion 11 can be properly and easily inserted into the inside of the metal fittings of the purse, while the pressing force of the tip of the clamping claw portion 11 can be concentrated. This improves workability and improves the temporary fastening effect by allowing the object to be tightly clamped.

The process of temporarily attaching the metal fittings 51 of the purse to the edge portion 52a of the sheet-like member 52 in relation to the string member 53 will now be described. Basically, when attaching the metal fittings 51 of the purse to the pouch portion of the purse (the edge portion 52a of the sheet-like member 52), the edge portion 52a is clamped by the clamping claw portion 11 and the pressure-receiving surface 21 via the string member 53 disposed inside the metal fittings 51 of the purse, so that the edge portion 52a is temporarily attached to the inner bottom portion 51b of the metal fittings 51 of the purse.

Furthermore, as shown in FIG. 6 etc., the sheet-like member 52 can be attached more securely by bending the end (edge portion 52a) of the sheet-like member 52 along the outer periphery of the string member 53 and the inner bottom portion 51b of the metal fitting 51 of the purse so that the end (edge portion 52a) of the sheet-like member 52 is folded back at the temporarily fastened position and temporarily fastened to the inner bottom portion 51b of the metal fitting 51 of the purse.

The string member 53 is thick enough (see FIG. 6, etc.) to hold the sheet-like member 52 between the inner bottom 51b of the purse metal fittings 51 and the string member 53 so that the sheet-like member 52 can be sandwiched between the string member 53 and the inner bottom 51b of the purse metal fittings 51 so as to fill the closed space of the purse metal fittings 51 when the purse metal fittings 51 are crushed (crimped) with pliers or the like to close the opening (finally, when the purse metal fittings 51 are fixed to the edge portion 52a of the sheet-like member 52) in order to attach the purse metal fittings 51 to the pouch portion of the purse (the edge portion 52a of the sheet-like member 52).

As described above, the clamping device for attaching metal fittings to a purse according to the present invention is preferably used when fastening the metal fittings 51 of the purse 50, but it is of course possible to use it for other purposes as well.

The present invention has been described above in various preferred embodiments, but the present invention is not limited to these embodiments, and many modifications can be made without departing from the spirit of the invention.

LIST OF SYMBOLS 10 One rotating member 10a Rotating surface 11 Clamping claw portion 11a Bend surface 11b Notch portion at tip 12 Convex fulcrum portion 13 One operating portion 15 Rotation axis 20 Other rotating member 21 Pressure receiving surface 22 Concave fulcrum portion 23 Other operating portion 25 Anti-slip member 25A Cap-shaped anti-slip member made of rubber material 30 Rotation restricting spring 50 Clasp 51 Metal fitting 51a Inner bottom portion 51b Outer curved surface portion 52 Fabric (sheet-like member)
52a Edge portion 53 String member 54 Adhesive 60 Spatula

Claims (3)

One rotating member and the other rotating member are provided so as to be rotatable about a rotation axis at their mutually contacting intermediate portions, and the tip portions of the one rotating member and the other rotating member can clamp an object by the biasing force of a rotation restricting spring, and the clamping device for fastening a metal fitting of a purse having a U-shaped cross section constituting the opening of the purse is used for temporarily fastening the metal fitting of the purse having a U-shaped cross section constituting the opening of the purse to an edge portion of a sheet-like member constituting the bag portion of the purse,
A clamping claw portion is provided at a tip end of the one of the rotating members, the clamping claw portion being formed in a spatula-like shape protruding in the clamping direction and capable of applying pressure by contacting the object at its tip end,
The clamping claw portion has a thickness in the front-rear direction, which is the longitudinal direction of the one of the rotating members, and a length protruding in the clamping direction, so that the clamping claw portion can enter toward an inner bottom portion on the inside of the metal fitting of the purse having a U-shaped cross section and temporarily fix the edge portion of the sheet-like member at the inner bottom portion by pressing and pushing the edge portion of the sheet-like member together with the string member,
A pressure receiving surface is provided at the tip of the other rotating member, which is a surface that contacts and clamps an outer curved surface portion that is an outer side of the metal fitting of the purse and is a curved portion having a U-shaped cross section, and which receives the clamping pressure from the clamping claw portion, and the pressure receiving surface is formed longer forward than the front-rear direction tip of the clamping claw portion,
The clamping claw portion is provided in a shape that protrudes in a rotation direction from a rotation plane defined as a plane that rotates through the rotation axis, and is provided in a shape that is bent at an acute angle relative to a shape in which a tip end portion of one of the rotating members is bent at a right angle in the rotation direction,
A clamping device for attaching metal fittings to a purse, characterized in that the pressure-receiving surface is provided by a non-slip member made of rubber. The clamping device for attaching metal fittings to a purse as described in claim 1, characterized in that the left and right corners of the tip of the clamping claw are cut out so as to taper toward the tip of the clamping claw. The clamping device for attaching metal fittings to a purse according to claim 1 or 2, characterized in that the pressure-receiving surface is formed by fitting a cap-shaped anti-slip member made of rubber material onto the tip end of the other rotating member from the tip end side of the tip end.

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