TW202026537A - Panel fastener - Google Patents

Abstract

A panel fastener F includes a mounting plate 1; a pair of bearing plates 2; a pair of claw plates 3 with a center of rotation at a side of a first surface 301, a second surface 302 formed in the shape of an arc, and a portion from the second surface 302 to a third surface 303 acting as a claw 31, wherein the pair of claw plates is rotatably supported between the pair of bearing plates 2, allowing the claw 31 to extend/retract from the bearing plates 2; and a spring member 5, wherein the pair of bearing plates 2 together with the pair of claw plates 3 are forced through mounting holes 61, 62 of panels P1, P2 by one push and thereby the pair of claw plates 3 is snap-fastened onto an edge of the mounting hole 62 of the panel P2. The panel fastener F makes it faster and easier to join two panels.

Description

Sheet fasteners

The invention relates to a plate fastener used for joining two plates.

In the past, for the assembly of modular racks, cabinets, etc. composed of a plurality of plates, various plate fasteners for quickly and easily joining two plates have been proposed.

Such sheet metal fasteners are disclosed in Japanese Patent Document JP2010-270770A. The fastener of this document is provided with: a central shaft; a locking piece located at the front end of the central shaft in the plate insertion direction; a fastener turning operation part located at the end of the central shaft in the plate insertion direction; The clasps extend in the same direction and are formed to fix the clasp to the retaining mechanism of the additional plate; and the blocking portion to restrict the rotation of the clasp. On the surface side of the buckle rotation operation part, a groove part that can be operated with coins, a flat-head screwdriver, etc. is formed. In addition, the holding mechanism is an arm formed perpendicular to the central axis of rotation.

On the other hand, an installation hole is formed at the fastener installation position of the additional plate. The mounting hole is provided with: a shaft support part formed by a pair of protruding parts of the central shaft for holding the fastener; a through part through which the locking piece and the arm part can pass; and a clip formed on the fastener for clamping The rotation restricting part of the block part. The pair of protruding parts of the shaft supporting part are formed with small-diameter holes in order to hold the central shaft. One rotation restricting part restricts the counterclockwise rotation of the fastener, and the other rotation The movement restricting part restricts the clockwise rotation of the fastener, and limits the maximum rotation angle of the fastener to 90 degrees.

In addition, a snap hole is formed at the fastener installation position of the main plate. The buckle hole part has: a shaft through part through which the central shaft of the fastener can pass; and a lock piece through part through which the lock piece can pass. Furthermore, bent portions are formed on both ends of the main board, and the space formed between the main board and the additional board absorbs the thickness of the arm portion of the fastener.

With the above configuration, insert the fastener into the mounting hole formed on the additional plate from the surface side of the additional plate, and after turning counterclockwise to hold the fastener, the back side of the additional plate is brought into contact with the main plate and the front end of the fastener is The part is inserted into the snap hole formed on the main plate and rotated clockwise to fix the additional plate on the main plate. With such a plate installation structure, two plates can be joined quickly and simply.

However, the above-mentioned conventional sheet metal fasteners are fixed through the mounting holes of the two sheets and rotated, so a tool for rotating the sheet fasteners must be used, and the installation work of the sheet fasteners is a little troublesome. In addition, it is necessary to provide mounting holes in one of the two plates and snap holes in the other, and each hole is of a different special shape, so the shape of the hole is complicated, which increases the cost of opening the hole. The problem.

The present invention is used to solve this problem in the past, and the purpose is: for this kind of sheet metal fasteners, no tools are used, but the sheet metal fasteners can be pressed in (one push) through the mounting holes of the two sheets Make it buckle, make the installation operation simple, can be faster than before and Simply join the two plates, and make the mounting holes of the two plates have a simple shape, reducing the cost of opening the holes.

In order to achieve the above-mentioned object, the sheet metal fastener of the present invention aims to penetrate the second sheet from the first mounting hole in a state where the first sheet with the first mounting hole is overlapped with the second sheet with the second mounting hole. The mounting hole is snapped on the edge of the second mounting hole, thereby joining the first plate and the second plate, and the plate fastener is provided with:

The mounting plate has a mounting surface larger than the first mounting hole of the first plate;

A pair of bearing plates retain the entire peripheral edge of the mounting surface of the mounting plate as a flange, and insert the first and second mounting holes of the first and second plates from the mounting plate. The mounting surfaces protrude parallel to each other;

A pair of claw plates respectively have: a first surface portion located on one end side, a second surface portion located on the other end side opposite to the first surface portion, a third surface portion located on the side surface, and a first surface portion The center of rotation is set on the side of the first surface, the second surface is formed in an arc shape, and the portion from the second surface to the third surface is used as the claw portion. A pair of shafts on both sides of the protruding end side of the pair of bearing plates are respectively rotatably supported between the pair of bearing plates, and are arranged so that the claws can be moved from both of the pair of bearing plates. Protruding and submerging of the side edges; and

The spring member is installed between the aforementioned pair of claw plates, or between the aforementioned claw plates and the aforementioned bearing plates, so that under normal conditions, the aforementioned pair of claw plates can be separated from two of the aforementioned pair of bearing plates. Rotate and push with protruding side edges;

Pass the aforementioned pair of bearing plates together with the aforementioned pair of claw plates through the aforementioned first and second mounting holes of the aforementioned first and second plates in a single press-fitting manner, so that the aforementioned pair of claw plates are snapped on the aforementioned first The edge of the second mounting hole of the two plates.

Moreover, it is preferable that this sheet metal fastener is configured in the following form.

(1) The center of rotation of each of the claw plates is set on the side of the first surface portion of each claw plate near the third surface portion, and the second surface portion of each claw plate is formed in an arc shape. The center of the arc is located closer to the first surface part and deviated to the fourth surface part than the rotation center of each claw plate.

(2) The third surface portion of each claw plate is formed to be parallel to the two side edge portions of the bearing plate; the portion of the first surface portion of each claw plate on the third surface side is formed as The center is located in the shape of an arc of the rotation center of the claw plate, and the rest of the first surface portion of each claw plate on the fourth surface side is formed to be symmetrical with the rotation center of the claw plate. The three surface portions are symmetrically inclined; and the fourth surface portion of each of the claw plates is formed to face a direction parallel to the third surface portion or a direction slightly expanded from the parallel.

In this aspect, it is also possible to form a convex stepped pair of catching portions on the mounting surface of the mounting plate on the two side edge portions between the pair of bearing plates, and each claw plate The end of the second surface portion on the fourth surface portion side is provided with a convex rotation restricting portion that can be engaged with each of the blocking portions of the mounting plate.

Furthermore, in this aspect, a cylindrical hole may be formed in the fourth surface portion of each claw plate, and the spring member is a coil spring, and both ends of the coil spring are held in the holes of the pair of claw plates Inside and installed between the aforementioned pair of claw plates.

Furthermore, in this aspect, the holes of each of the claw plates may also be formed to have a predetermined angle with respect to the fourth surface portion, so that when the pair of bearing plates and the pair of claw plates are inserted through the first and Before and after the second mounting hole, when the claws of the pair of claw plates are in a state of protruding from the two side edges of the bearing plate, the coil spring can be changed into an arc shape protruding toward the mounting plate; and, the aforementioned A portion of the inner peripheral surface of the hole on the side of the second surface portion may also be formed to have a predetermined angle of inclination that expands from the bottom side of the hole toward the opening side, so that the pair of bearing plates together with the pair of While the claw plate is inserted through the first and second mounting holes, when the claws of the pair of claw plates are submerged inside the two side edge portions of the bearing plate, the coil spring can be deformed into a convex The arc shape on the side opposite to the mounting plate.

(3) The mounting plate is composed of a quadrangular plate larger than the first mounting hole of the first plate; the pair of bearing plates are formed to have the first and second plates that can be fitted into the first and second plates. And the size of the second mounting hole and a quadrangular shape with a predetermined length that can be inserted through the first and second mounting holes; and the first and second mounting holes of the first and second plates are respectively formed in a quadrangular shape Open up.

According to the plate fastener of the present invention, since it is provided with: a mounting plate having a mounting surface larger than the first mounting hole of the first plate; a pair of bearing plates, retaining the entire periphery of the mounting surface of the mounting plate as a flange The first and second mounting holes of the first and second plates protrude parallel to each other from the mounting surface of the mounting plate in such a way that they can be inserted through the first and second plates; a pair of claw plates set the rotation center on the side of the first surface part , The second surface portion is formed in an arc shape, and the portion from the second surface portion to the third surface portion is used as the claw portion, by being inserted into one of the two sides of the protruding end side of the pair of bearing plates The shaft is rotatably supported between a pair of bearing plates, and the claws are arranged so that the The two side edges of the bearing plate protrude and sink; and the spring member is tied between the pair of claw plates, so that the pair of claw plates can protrude from the two side edges of the pair of bearing plates under normal conditions Rotate and push in a way; pass a pair of bearing plates and a pair of claw plates through the first and second mounting holes of the first and second plates in a single press, so that the pair of claw plates are buckled in the first The edge of the second mounting hole of the two plates, therefore, the plate fastener can be clamped through the mounting holes of the two plates in one press without using tools, making the installation work simpler, faster and simpler than before Ground the two plates together.

In addition, the mounting plate is a quadrangular plate larger than the mounting hole of one of the plates, and a pair of bearing plates are respectively formed to have a size that can be fitted into the mounting holes of the two plates and have a predetermined length that can be inserted through the mounting holes. When the mounting holes of the two plates are quadrangular openings, the mounting holes of the two plates have a simple shape, and the cost required for the opening can be reduced, which is the unique special effect of the present invention.

1‧‧‧Mounting plate

2‧‧‧Bearing plate

3‧‧‧Claw plate

4‧‧‧Axis

5‧‧‧Spring member (coil spring)

11‧‧‧Flange

20‧‧‧Shaft insertion part

21‧‧‧Card stop

30‧‧‧Shaft insertion part

31‧‧‧Claw

32‧‧‧Rotation restriction

33‧‧‧Hole

61、62‧‧‧Mounting hole

101, 102‧‧‧The edge of the long side

103, 104‧‧‧The edge of the short side

200‧‧‧Inclination

201‧‧‧Edge

202‧‧‧Edge

203, 204‧‧‧Side edge (the edge on the short side)

301‧‧‧Part One

302‧‧‧Second side part

303‧‧‧Part III

304‧‧‧Part 4

331‧‧‧Part of the inner circumference of the hole

F‧‧‧Plate fasteners

P1‧‧‧First plate

P2‧‧‧Second board

R‧‧‧Frame

Figure 1 is a perspective view showing the overall structure of a sheet metal fastener according to an embodiment of the present invention.

Figure 2 is a diagram showing the structure of each part of the sheet metal fastener of Figure 1, (a) is a plan view, (b) is a front view, (c) is a side view, (d) is a front sectional view, (e ) Is a side sectional view.

Figure 3 is a diagram showing the structure of the claw plate of the sheet metal fastener of Figure 1, (a) is a front sectional view, and (b) is a side view of the inner side (fourth surface part).

Figure 4 is a diagram showing an example of use when the plate fastener of Figure 1 is used in the assembly of a modular rack.

Figure 5 is a partial enlarged perspective view showing the use method of the plate fastener and the function of the plate fastener in the example of using the plate fastener in Figure 4.

Figure 6 is a partially omitted cross-sectional view showing the use method of the plate fastener and the function of the plate fastener in the example of the use of the plate fastener in Figure 4.

Figure 7 is an enlarged front view showing the function of the plate fastener in the example of use of the plate fastener in Figure 4.

Next, the form of carrying out the present invention will be explained using drawings.

Figure 1 and Figure 2 show the sheet fastener F. The plate fastener F is a fastener used to join the first plate P1 and the second plate P2. The so-called plate here refers to components that constitute, for example, a modular rack, a cabinet, etc., and can be metal products, synthetic resin products, etc. The material is not limited.

The sheet material fastener F is in a state where the first sheet material P1 formed with the first mounting hole 61 and the second sheet material P2 formed with the second mounting hole 62 overlap (refer to Figure 5), from the first sheet P1 The mounting hole 62 passes through the second mounting hole 62 of the second plate P2 and is snapped on the edge of the second mounting hole 62 of the second plate P2, thereby joining the first plate P1 and the second plate P2. The plate fastener F is provided with a mounting plate 1 and a pair of bearing plates 2. The mounting plate 1 has a mounting surface larger than the first mounting hole 61 of the first plate P1. The pair of bearing plates 2 retain the entire peripheral edge of the mounting surface of the mounting plate 1 as a flange 11. The surfaces protrude parallel to each other and can be inserted into the first and second mounting holes 61 and 62 of the first and second plates P1 and P2. The plate fastener F further includes a pair of claw plates 3. The pair of claw plates 3 respectively have: a first surface portion 301 on one end side; a second surface portion 302 on the other end side opposite to the first surface portion 301; and a side surface portion The third surface portion 303 and the fourth surface portion 304. The pair of claw plates 3 has the center of rotation on the side of the first surface portion 301, the second surface portion 302 is formed in an arc shape, and the portion from the second surface portion 302 to the third surface portion 303 is used as the claw portion 31, and are rotatably supported between the pair of bearing plates 2 by a pair of shafts 4 inserted on either side of the edge 201 side of the protruding end of the pair of bearing plates 2, and are arranged as claws 31 can protrude and sink from the two side edge portions 203 and 204 of the pair of bearing plates 2. The plate fastener F is further provided with a spring member 5 (refer to FIG. 2). The spring member 5 is interposed between a pair of claw plates 3, and under normal conditions, the pair of claw plates 3 can be rotated and pushed in such a way that they can protrude from the two side edges 203, 204 of the pair of bearing plates 2 .

As shown in FIG. 2, the mounting plate 1 is composed of a quadrangular shape slightly larger than the first mounting hole 61 of the first plate P1, specifically a rectangular shape, and a flat plate as a whole. One plane of the mounting plate 1 is a mounting surface, and a pair of bearing plates 2 are integrally protruding from the mounting surface. The pair of bearing plates 2 are located on the mounting plate 1 slightly retracted from the edges 101 and 102 on the long side and the edges 103 and 104 on the short side, parallel to the edges 101 and 102 on the long side. It is arranged so that the entire periphery of the mounting surface of the mounting plate 1 remains as the flange 11. A pair of bearing plates 2 are both formed into a size that can be inserted into the first and second mounting holes 61, 62 of the first and second plates P1, P2, and have the first and second mounting holes 61, 62 to be inserted through The quadrangular shape of the predetermined length is specifically a rectangular shape with a flat plate as a whole. In this embodiment, each bearing plate 2 is formed into a rectangle by the edges 201, 202 on the long side and the side edges 203, 204 on the short side. Among them, the edges 201, 202 on the long side are connected to the The long-side edges 101 and 102 of the board 1 are parallel to the two edges, and the short-side side edges 203 and 204 are two edges that are at right angles to the long-side edges 101 and 102 of the mounting board 1.

On the mounting surface of the mounting plate 1, on the sides of the two side edge portions 203 and 204 between the pair of bearing plates 2, there are formed blocking portions 21 for blocking one pair of the pair of claw plates 3. This pair of The blocking portions 21 are all formed in a convex step shape, and in this embodiment, they are formed in a convex shape with a substantially rectangular cross section. In addition, in the vicinity of the corners of both sides of the edge 201 of each bearing plate 2, that is, the edge 201 of the protruding end on the opposite side to the mounting plate 1, a shaft insertion portion 20 through which the shaft 4 can be inserted is formed. The entire circumference of each shaft insertion portion 20 is collectively formed with an inclined portion 200 formed as a tapered surface from the outer surface of each bearing plate 2 toward the inner side.

Along with the shape of the mounting plate 1 and the pair of bearing plates 2, the mounting holes 61, 62 (refer to Figure 5) of the first and second plates P1 and P2 are formed as a pair of bearing plates 2 that can be fitted The square shape of the installation, specifically the simple shape of the rectangular opening. Mounting holes 61, 62 have the size of the edge in the longitudinal direction approximately the same as or slightly larger than the size of the edge 201 in the longitudinal direction of the bearing plate 2, and the size of the edge in the shorter direction is between the outer surface of the bearing plate 2. The size is about the same or slightly larger.

Referring to FIGS. 2 and 3, a pair of claw plates 3 respectively have: a first surface portion 301; a second surface portion 302; a third surface portion 303; and a fourth surface portion 304. The first surface portion 301 is one end side corresponding to the edge portion 201 of the protruding end of the bearing plate 2 in the submerged state shown in FIG. 6(2) described later. The second surface portion 302 corresponds to the other end side of the edge 202 on the opposite side to the edge 201 of the protruding end of the bearing plate 2. The third surface portion 303 corresponds to the side edge portions 203 and 204 of the bearing plate 2 and is arranged on the side surface side outside the bearing plate 2. The fourth surface portion 304 is arranged on the opposite side to the third surface portion 303 On the side of the inner side of the bearing plate 2.

As shown in Fig. 2, a pair of claw plates 3 are respectively formed to be able to be arranged in a half surface of a rectangular plane of a pair of bearing plates 2, and in this rectangular plane, the center position in the longitudinal direction is symmetrical The center is a symmetrical shape. As shown in Figures 2 and 3, each claw plate The rotation center of 3 is set on the side of the first surface portion 301 corresponding to the edge portion 201 of the protruding end of the bearing plate 2, and is biased to the third surface portion 303 corresponding to the side edge portions 203, 204 of the bearing plate 2 , A shaft insertion portion 30 through which the shaft 4 can be inserted is formed there. The second surface portion 302 corresponding to the edge 202 of the bearing plate 2 is formed in an arc shape, the center of which is located closer to the first surface portion 301 than the rotation center of the claw plate 3 and deviated from the fourth surface portion 304 Part of the circle.

In addition, as shown in Fig. 3, in each claw plate 3, in the submerged state shown in Fig. 6 (2) described later, the third surface portion 303 is formed to be in contact with the side edge portion 203 and the bearing plate 2 The parallel section of 204 is a straight flat surface. The portion from the second surface portion 302 to the third surface portion 303 becomes the claw portion 31. The first surface portion 301 has a composite shape. The portion of the first surface portion 301 on the third surface portion 303 side is formed as a flat surface with a circular arc cross section centered on the rotation center of the claw plate 3. The rest of the portion 301 on the fourth surface portion 304 side is formed as a flat surface that is inclined symmetrically with the third surface portion 303 with the rotation center of the claw plate 3 as the center of symmetry. The fourth surface portion 304 is formed as a flat surface in a direction parallel to or slightly expanded from the third surface portion 303. In this embodiment, the fourth surface portion 304 is formed as a flat surface in a direction slightly expanded from parallel.

In addition, the second surface portion 302 of each claw plate 3 is provided with a convex rotation restricting portion 32 that can be engaged with the retaining portion 21 of the mounting plate 1 at the end on the fourth surface portion 304 side. In the aspect, a rotation restricting portion 32 with a cross section of a trapezoidal shape is provided.

Furthermore, the fourth surface portion 304 of each claw plate 3 is formed with a cylindrical hole 33. As shown in Figure 2, the coil spring 5 is used as the spring member, the ends of the coil spring 5 are held in the holes 33 of the pair of claw plates 3, and the coil spring 5 is installed between the two claw plates 3. . The hole 33 of each claw plate 3 is formed as shown in Fig. 2 and Fig. 3 so as to have a Predetermined angle. This angle is set as follows: when the plate fastener F is mounted to the mounting holes 61, 62 of the two plates P1, P2, the pair of bearing plates 2 and the pair of claw plates 3 are inserted through the mounting holes 61, 62 As shown in Figure 6 (1) and (3), when the claw portion 31 of the claw plate 3 is in a state protruding from the two side edges 203 and 204 of the bearing plate 2, the coil spring 5 can be changed to form a convex The arc shape toward the side of the mounting plate 1. In addition, a portion 331 of the inner peripheral surface of the hole 33 on the second surface portion 302 side is formed to have a predetermined angle of inclination that gradually expands from the bottom side of the hole 33 toward the opening side. This angle is set as follows: while the pair of bearing plates 2 and the pair of claw plates 3 are inserted through the mounting holes 61 and 62, as shown in Figure 6 (2), the claw portion 31 of the claw plate 3 is in the bearing When the inner sides of the two side edge portions 203 and 204 are submerged between the plates 2, the coil spring 5 can be deformed into an arc shape protruding to the side opposite to the mounting plate 1.

Each part of the sheet fastener F system has the above-mentioned structure. As shown in Figure 2, a pair of claw plates 3 are arranged between the pair of bearing plates 2 so that the center of the bearing plate 2 in the longitudinal direction is symmetrical. It is symmetrical to the center, and the shaft insertion portions 20 near the corners of the edge 201 of the protruding end of the bearing plate 2 are aligned with the shaft insertion portions 30 of each claw plate 3, and then the shaft 4 is inserted. The claw plates 3 assembled as a pair are rotatably supported between the pair of bearing plates 2. In addition, both ends of each shaft 4 are riveted and fixed in the tapered inclined portion 200 of the bearing plate 2.

The plate fastener F assembled in this way is to make a pair of bearing plates 2 and a pair of claw plates 3 pass through the mounting holes 61, 62 of two plates P1, P2 in a single press-fitting manner, and a pair of claw plates 3 is snapped on the edge of the mounting hole 62 of the plate P2.

Figures 4 and 5 show examples of the case where the plate fastener F is used in the assembly of the modular rack R. The frame R is composed of a top plate, a bottom plate, left and right side plates, a front door plate, and a back plate. The fixed position of each plate is equipped with a quadrangle (Rectangular) mounting holes, after aligning the mounting holes of two adjacent plates, insert the plate fastener F and buckle to assemble the frame R.

Hereinafter, the method of using the sheet metal fastener F and the function of the sheet metal fastener F will be specifically described. However, because the method of using the plate fastener F is the same between any two adjacent plates, it is not specifically specified what the joined plates are, but only called the two plates P1, P2, or the first plate. P1 and the second sheet P2, etc. The first plate P1 refers to the plate with the mounting hole 61 on the outside when the two plates P1 and P2 overlap, that is, the plate inserted into the side of the plate fastener F, and the second plate P2 refers to the overlap of the two plates P1, P2. The mounting hole 62 is located on the inner plate, that is, the plate on the side where the plate fastener F protrudes.

As shown in Figures 5 and 6 (1), the normal state before use of the sheet metal fastener F is that a pair of claw plates 3 are placed between the pair of bearing plates 2 by a coil spring 5 facing the bearing plate 2 The two side edge portions 203, 204 are pushed in the direction, so that the portion of the claw plate 3 from the third surface portion 303 to the second surface portion 302, that is, the claw portion 31 moves from the two side edge portions 203, 204 of the bearing plate 2 Protruding to the outside. In addition, on the mounting surface of the mounting plate 1, a pair of blocking portions 21 are formed on the two side edge portions 203 and 204 between the pair of bearing plates 2, and the second surface portion 302 of each claw plate 3 The end portion on the fourth surface portion 304 side is provided with a convex rotation restricting portion 32 that can abut against each stopper portion 21, so that the claw plate 3 can be surely prevented from popping out between the bearing plates 2.

When assembling this combined frame R, as shown in Figures 5 and 6, overlap the two plates P1 and P2, align the mounting holes 61 and 62 of the two plates P1 and P2, and buckle the plates The part F matches the direction of the mounting holes 61 and 62. If the mounting holes 61 and 62 are horizontal, the plate fastener F is placed horizontally. If the mounting holes 61 and 62 are vertical, the plate fastener F is placed vertically, and then a pair of The bearing plate 2 and a pair of claw plates 3 are pressed (in one time) into the mounting holes 61 and 62 of the two plates P1 and P2.

In this way, as shown in Fig. 6, the plate fastener F is made of the two side edges 203, 204 and the two outer sides of the bearing plate 2, from the front end to the middle, and then from the middle to the base, on the plates P1, P2 The edges of the mounting holes 61 and 62 in the short-side direction and the long-side direction slide in contact and pass through the mounting holes 61 and 62. In the process, from the two side edges 203, 204 of the pair of bearing plates 2 protruding outside, the claws 31 of the pair of claw plates 3 contact each of the short sides of the mounting holes 61, 62 of the plates P1, P2. The edge of the bearing plate is compressed, and resists the elastic force of the coil spring 5 between the claw plates 3 (compresses the coil spring 5) and slowly rotates to the inside between the bearing plates 2, gradually from the two side edges between the bearing plates 2 The parts 203 and 204 sink to the inside. Then, when the plate fastener F is pressed into the mounting holes 61, 62, the pair of claws 31 are completely submerged between the bearing plates 2, and the bearing plate 2 completely passes through the mounting holes 61, 62 of the plates P1, P2, and is installed The plate 1 abuts the entire periphery of the mounting hole 61 of the outer plate P1 with the flange 11. The pair of claw plates 3 between the bearing plates 2 pass through the mounting holes 61 and 62 of the plates P1 and P2. The second plate P2 on the inner side is driven by the elastic force of the coil spring 5 between the claw plates 3 (coil spring 5 The elastic restoring force) of the bearing plate 2 rotates toward the two side edge portions 203204 of the bearing plate 2 and protrudes outward from the two side edge portions 203 and 204, and is elastically engaged with the periphery of the short-side edge portion of the mounting hole 62. Here, the plate fastener F is as shown in Fig. 3, the rotation center of the claw plate 3 is set on the first surface portion 301 side close to the third surface portion 303, and the second surface portion 302 of the claw plate 3 It is formed in an arc shape, and the center of the arc shape is located closer to the first surface portion 301 and offset to the fourth surface portion 304 than the rotation center of the claw plate 3, whereby the claw plate 3 is as shown in FIG. As the claw portion 31 rotates to the outside, the arc-shaped portion of the claw portion 31 will approach the edge of the mounting hole 62 and eventually engage each edge of the mounting hole 62 in the short side direction. Thereby, a pair of bearing plates 2 are drawn from the mounting holes 61 of the first plate P1 to the mounting holes 62 of the second plate P2 as shown in Figure 6 (3), so that the flange 11 of the mounting plate 1 is pressed Connected to the first plate P1 Around the entire periphery of the mounting hole 61, two plates P1 and P2 are tightly joined between the mounting plate 1 and the pair of claw plates 3.

As explained above, according to this plate fastener F, it is provided with: the mounting plate 1, which has a mounting surface larger than the first mounting hole 61 of the first plate P1; a pair of bearing plates 2, which retain the mounting plate 1 The entire peripheral edge of the surface is used as the flange 11 and protrudes parallel to each other from the mounting surface of the mounting plate 1 in such a way that the first and second mounting holes 61, 62 of the first and second plates P1, P2 can be inserted; The claw plate 3 is set with the center of rotation on the side of the first surface portion 301, the second surface portion 302 is formed in an arc shape, and the portion from the second surface portion 302 to the third surface portion 303 is used as the claw portion 31, It is rotatably supported between the pair of bearing plates 2 by a pair of shafts 4 inserted on either side of the edge 201 side of the protruding end of the pair of bearing plates 2, and is arranged such that the claws 31 can From the two side edges of the pair of bearing plates 2 protruding and submerging; and the coil spring 5 is set as a normal state so that the pair of claw plates 3 can be moved from the two side edges 203, 204 is a spring member that rotates and pushes in a protruding manner, and a pair of bearing plates 2 and a pair of claw plates 3 are pressed in one time through the first and second installations of the first and second plates P1, P2 The holes 61 and 62 allow the pair of claw plates 3 to be snapped onto the edge of the second mounting hole 62 of the second plate P2. Therefore, the plate fastener F can be pressed through the two plates at one time without using tools. The mounting holes 61, 62 of P1, P2 are stuck, the mounting operation becomes simple, and the two plates P1, P2 can be joined more quickly and easily than before.

In addition, this sheet metal fastener F also has the following advantages.

(1) Since the rotation center of each claw plate 3 is set on the first surface portion 301 side of the claw plate 3 near the third surface portion 303, and the second surface portion 302 is formed in an arc shape, the center of the arc shape Located closer to the first surface portion 301 than the rotation center of the claw plate 3 and deviated to the fourth surface portion Therefore, after the plate fastener F passes through the mounting holes 61 and 62 of the two plates P1 and P2 in a single press-fitting manner, the claw plate 3 rotates outward with the claw 31, and the circle of the claw 31 The arc-shaped part will be closer to the edge of the mounting hole 62 and eventually bite into the edge of the mounting hole 62. Thereby, the pair of bearing plates 2 can be pulled from the first mounting hole 61 of the first plate P1 to the second mounting hole 62 of the second plate P2, so that the flange 11 of the mounting surface of the mounting plate 1 is pressed against The entire periphery of the first mounting hole 61 of the first plate P1 is tightly joined between the two plates P1 and P2 between the mounting plate 1 and the pair of claw plates 3. Therefore, even if the thicknesses of the two plates P1 and P2 are slightly different, the two plates P1 and P2 can be reliably joined without shaking.

(2) Since the third surface portion 303 of each claw plate 3 is formed parallel to the two side edges 203 and 204 of the bearing plate 2; the first surface portion 301 of each claw plate 3 is closer to the third surface portion 303 side The part is formed in the shape of an arc whose center is located at the rotation center of the claw plate 3. The remaining part of the first surface portion 301 on the side of the fourth surface portion 304 is formed to be symmetrical with the rotation center of the claw plate 3. The portion 303 is symmetrically inclined; and the fourth surface portion 304 of each claw plate 3 is formed to face a direction parallel to the third surface portion 303 or a direction slightly divergent from the parallel. Therefore, a pair of quadrangular bearing plates 2 A pair of claw plates 3 are arranged on the inner side of the bearing plate 2 so that only the claws 31 can protrude and sink from the two side edges 203 and 204 of the bearing plate 2.

In addition, because the mounting surface of the mounting plate 1 is formed on the two side edge portions 203 and 204 between the pair of bearing plates 2, a pair of convex step-shaped stopper portions 21 are formed on the second side of each claw plate 3. The end of the two-sided portion 302 on the fourth surface portion 304 side is provided with a convex rotation restricting portion 32 that can be engaged with the retaining portions 21 of the mounting plate 1, so that the claw plates 3 can be reliably prevented from being removed from the bearing plates. 2 by ejection, the claws 31 of each claw plate 3 can be surely protruded and submerged from the two side edges 203 and 204 of each bearing plate 2.

In addition, because a cylindrical hole 33 is formed in the fourth surface portion 304 of each claw plate 3, the coil spring 5 is used as a spring member, and both ends of the coil spring 5 are held in the hole 33 of each claw plate 3. Between the claw plates 3, the claw plates 3 can be rotated and pushed in the direction of the two side edges 203 and 204 of the bearing plates 2 with a simple structure.

Furthermore, at this time, the holes 33 of each claw plate 3 are formed to have a predetermined angle with respect to the fourth surface portion 304, so that the pair of bearing plates 2 and the pair of claw plates 3 are inserted through the two plates P1. , P2 before and after the mounting holes 61, 62, when the claws 31 of a pair of claw plates 3 are in a state of protruding from the two side edges 203, 204 of the bearing plate 2, the coil spring 5 can be changed to protrude toward the mounting plate 1 side And a part 331 of the inner peripheral surface of the hole 33 on the side of the second surface portion 302 is formed to have a predetermined angle of inclination that expands from the bottom side of the hole 33 toward the opening side, so that a pair of While the bearing plate 2 and the pair of claw plates 3 are inserted into the mounting holes 61 and 62 of the two plates P1 and P2, the claws 31 of the pair of claw plates 3 are immersed in the two side edges of each bearing plate 2 In the state inside the parts 203 and 204, the guide coil spring 5 is deformed into an arc shape protruding to the side opposite to the mounting plate 1. Therefore, the coil spring 5 can be stretched and deformed well, and a pair of The claws 31 of the claw plate 3 protrude and sink into the two side edges 203 and 204 of the pair of bearing plates 2 reliably and smoothly.

(3) Since the mounting plate 1 is composed of a quadrangular plate larger than the first mounting hole 61 of the first plate P1; a pair of bearing plates 2 are respectively formed with mounting holes 61 into which two plates P1 and P2 can be inserted , 62 is a quadrangular shape with a predetermined length that can be inserted through the two mounting holes 61, 62; and the mounting holes 61, 62 of the two plates P1, P2 are respectively formed as quadrangular openings. Therefore, the two plates P1, The mounting holes 61 and 62 of P2 are simple shapes, which can reduce the cost of opening the holes.

In addition, in this embodiment, the coil spring 5 is used as the spring member and the coil spring 5 is mounted between the pair of claw plates 3. However, torsion springs, leaf springs, etc. can also be used as spring members to be mounted on each claw plate 3 and Between each bearing plate 2. Such an implementation can also produce the same effects as the above-mentioned embodiment.

In addition, the above explained the example of using this sheet material fastener F for joining two sheets of sheet material, but of course the same applies to the case where other members are sandwiched between two sheets of sheet material, or the overlapping and joining of three or more sheets of sheet material. Circumstances, etc., and are not limited to the use of only joining two plates.

1‧‧‧Mounting plate

2‧‧‧Bearing plate

3‧‧‧Claw plate

31‧‧‧Claw

61、62‧‧‧Mounting hole

203, 204‧‧‧Side edge (the edge on the short side)

301‧‧‧Part One

302‧‧‧Second side part

303‧‧‧Part III

F‧‧‧Plate fasteners

P1‧‧‧First plate

P2‧‧‧Second board

Claims (7)

A plate fastener is inserted through the second mounting hole from the first mounting hole and buckled to the second mounting hole in a state where a first plate formed with a first mounting hole and a second plate formed with a second mounting hole overlap The edge of the mounting hole is used to join the first plate and the second plate, and the plate fastener is provided with: The mounting plate has a mounting surface larger than the first mounting hole of the first plate; A pair of bearing plates retain the entire peripheral edge of the mounting surface of the mounting plate as a flange, and insert the first and second mounting holes of the first and second plates from the mounting plate. The mounting surfaces protrude parallel to each other; A pair of claw plates respectively have: a first surface portion located on one end side, a second surface portion located on the other end side opposite to the first surface portion, a third surface portion located on the side surface, and a first surface portion The center of rotation is set on the side of the first surface, the second surface is formed in an arc shape, and the portion from the second surface to the third surface is used as the claw portion. A pair of shafts on both sides of the protruding end side of the pair of bearing plates are respectively rotatably supported between the pair of bearing plates, and are arranged so that the claws can be moved from both of the pair of bearing plates. Protruding and submerging of the side edges; and The spring member is installed between the aforementioned pair of claw plates, or between the aforementioned claw plates and the aforementioned bearing plates, so that under normal conditions, the aforementioned pair of claw plates can be separated from two of the aforementioned pair of bearing plates. Rotate and push with protruding side edges; Pass the aforementioned pair of bearing plates together with the aforementioned pair of claw plates through the aforementioned first and second mounting holes of the aforementioned first and second plates in a single press-fitting manner, so that the aforementioned pair of claw plates are snapped onto the aforementioned second The edge of the aforementioned second mounting hole of the plate. Such as the sheet fastener described in item 1 of the scope of patent application, in which, The center of rotation of each of the claw plates is located near the third surface on the side of the first surface of each claw plate, and the second surface of each claw plate is formed in a circular arc shape. The center is located closer to the first surface part and offset to the fourth surface part than the rotation center of each claw plate. Such as the sheet fastener described in item 1 or 2 of the scope of patent application, in which, The third surface portion of each claw plate is formed to be parallel to the two side edge portions of the bearing plate; The portion of the first surface portion of each claw plate on the third surface side is formed in an arc shape centered at the rotation center of the claw plate, and the portion of the first surface portion of each claw plate close to the fourth surface The remaining part of the side is formed to be symmetrically inclined with the third surface part with the rotation center of the aforementioned claw plate as the center of symmetry; and, The fourth surface portion of each of the claw plates is formed to face a direction parallel to the third surface portion or a direction slightly expanded from the parallel. Such as the sheet fastener described in item 3 of the scope of patent application, in which, On the mounting surface of the mounting plate, a pair of convex step-shaped blocking portions are formed on the two side edge portions between the pair of bearing plates, and the second surface portion of each claw plate is close to the fourth The end portion on the side of the surface portion is provided with a convex rotation restricting portion that can be engaged with each of the retaining portions of the mounting plate. Such as the sheet fastener described in item 3 or 4 of the scope of patent application, in which, A cylindrical hole is formed on the fourth surface of each claw plate, The spring member is a coil spring, and both ends of the coil spring are held in the holes of the pair of claw plates and mounted between the pair of claw plates. As the sheet fastener described in item 5 of the scope of patent application, among which, The holes of each claw plate are formed to have a predetermined angle with respect to the fourth surface portion, so that before and after the pair of bearing plates and the pair of claw plates are inserted through the first and second mounting holes, one When the claws of the opposing claw plate are in a state of protruding from the two side edges of the bearing plate, the coil spring can be deformed into an arc shape protruding toward the mounting plate; moreover, A portion of the inner peripheral surface of the hole on the side of the second surface portion is formed to have a predetermined angle of inclination that expands from the bottom side of the hole to the opening side, so that the pair of bearing plates together with the pair of While the claw plate is inserted through the first and second mounting holes, when the claws of the pair of claw plates are submerged inside the two side edge portions of the bearing plate, the coil spring can be deformed into a convex The arc shape on the side opposite to the mounting plate. Such as the sheet fastener described in any one of items 1 to 6 of the scope of patent application, wherein: The aforementioned mounting plate is composed of a quadrangular plate larger than the aforementioned first mounting hole of the aforementioned first plate; The aforementioned pair of bearing plates are respectively formed into a quadrangular shape having a size that can be inserted into the first and second mounting holes of the first and second plates and having a predetermined length that can be inserted through the first and second mounting holes; and, The first and second mounting holes of the first and second plates are respectively formed as quadrangular openings.

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