JP2005297474A - Thumbtack - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To keep a similarly good appearance in both cases of use that a thumbtack having a magnet is fixed by a needle and is fixed by the magnet. <P>SOLUTION: This thumbtack has the magnet 2 on the bottom surface side of a base plate, and a through hole is penetrated in the thickness direction of the base plate. The upper surface side of the base plate is covered by an elastic cover which expands into a dome-shape, a thumbtack fixing piece provided above the through hole of the base plate is made to go along the internal side of the cover by the elasticity. The head section of the thumbtack is placed in a gap between the cover and the thumbtack fixing piece, and the needle section of the thumbtack is inserted in the through hole of the base plate through the thumbtack fixing piece. When the covers is depressed to an article to be fixed to which the magnet does not stick, the cover and the thumbtack fixing piece are deformed, and the needle section protrudes from the through hole of the base plate, and stuck into the article. When the depressing of the cover is released, the cover expands into the dome shape by the elastic force while the thumbtack fixing piece is being deformed. When the needle section of the thumbtack is removed from the article to be fixed, the thumbtack fixing piece is returned to the state going along the dome-like cover by the elastic force. The cover edge section is fixed to the outer peripheral surface of the base plate, and a flange for a knob is projected on the upper section of the outer peripheral surface of the base plate under a state going through the cover. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a thumbtack that can be pierced to a pillar, a wall, or the like by a needle part of a scissors, and that can be stuck to iron or the like by a magnet.

A conventional thumbtack is known in which the periphery of a needle protruding from a disk-shaped fixing portion is covered with a cushion, and a magnet is attached to the bottom of the cushion.
JP 2003-326893 A

  However, when the above-described one is fastened to a pillar or the like with a needle, the appearance of the cushion is poor because the cushion is shrunk and collapsed. On the other hand, when the magnet is fastened to iron or the like, the cushion is not crushed, so there is too much difference in the usage mode between the case of fastening to iron or the like and the case of fastening to the pillar or the like with a needle.

  The invention according to claim 1 was created in consideration of the above situation, and its solution is to provide a thumbtack that can keep the usage mode in the same manner when it is fastened with a needle and when it is fastened with a magnet. That is.

  In addition, the above-mentioned thing has a problem in durability since the cushion is subjected to a force to be peeled off from the fixing part and the magnet when the disk-like fixing part is pinched when removing from the state where the magnet is fixed to iron or the like. is there.

  The invention according to claim 2 was created in consideration of the above-mentioned actual situation, and the problem to be solved is to provide a thumbtack that improves durability in addition to the problem to be solved by the invention according to claim 1.

  The thumbtack of the invention of claim 1 has a magnet on the bottom surface side of the substrate, has a through hole penetrating in the thickness direction, covers the upper surface side of the substrate with an elastic cover that swells in a dome shape, With the elasticity of the tacking piece above the punched hole, along the inside of the cover, it has the head of the kite in the gap between the cover and the tacking piece, and the needle part of the kite passes through the tacking piece If the cover is pushed against the elasticity of the fixed object that does not stick to the magnet, and the cover and the tacking piece are deformed, the When the needle part protrudes and stabs into the object to be fixed, and the cover is released, the cover bulges into a dome shape due to the elastic force while the hooking piece is deformed, and the needle part of the eyelid is pulled out from the object to be fixed In the case, the tacking piece follows the dome-shaped cover by elastic force. Characterized in that to restore the status.

  The edge of the cover may be fixed to any surface of the substrate as long as the top surface of the substrate is covered in a dome shape. For example, the edge of the cover may be fixed along the edge of the upper surface of the substrate. In this case, the edge of the cover is bent deeply with respect to the portion covered in a dome shape, and the edge is bent by the strong restoring force applied to the edge. Since the part acts to be detached from the board, the cover and the board are unstablely fixed, and the cover is easy to peel off.If there is no place to pinch with the finger when removing the thumbtack from the fixed object, remove the cover. There is a risk of pulling and trying to remove. In order to eliminate such inconvenience, as in the invention of claim 2, the edge of the cover is fixed to the outer peripheral surface of the substrate, and a knob hook is passed through the cover at the upper portion of the outer peripheral surface of the substrate. It is desirable to protrude at.

  As for the thumbtack of the present invention, if the object to be fixed is attached with a magnet, the cover will be in a dome-like shape if the thumbtack is fixed with the magnet as it is, and the object to be fixed will not stick to the magnet. If there is, if the cover is pushed in, the needle portion of the heel protrudes from the hole in the substrate and stays stuck in the fixed object, and if the push is released, the cover swells into a dome shape by elastic force. Therefore, regardless of the attribute of the fixed object, the use form of the thumbtack is a good form in which the cover swells like a dome.

  In addition, if the edge of the cover is fixed to the outer peripheral surface of the substrate, the bending angle between the portion covered with the dome and the edge becomes shallow and the restoring force is small, so the fixing between the edge and the substrate is stable. In addition, the hook that protrudes from the upper part of the outer peripheral surface of the board can be pinched and removed from the object to be fixed, and the cover does not apply force, so it can withstand repeated use. It can be said that it is excellent.

  As shown in FIGS. 1 and 2, the thumbtack of the present invention is a cover that covers a disk-shaped substrate 1, a magnet 2 that is fixed to the bottom surface side of the substrate 1 by adhesion or the like, and a top surface of the substrate 1 that swells in a dome shape. 3, a tacking piece 4 along the inside of the cover 3, and a brim 6 that accommodates the head 5 in the gap G between the cover 3 and the tacking piece 4. Then, a through hole 7 is provided in the center portion of the substrate 1 in the thickness direction, and the needle portion 8 of the flange 6 is inserted into the extraction hole 7 of the substrate 1 through the anchoring piece 4, and the cover 3 swells in a dome shape. And the elasticity of the tacking piece 4 along the inside of the cover 3 are provided so that the cover 3 and the tacking piece 4 can be opened and closed, and the needle portion 8 of the collar 6 can be taken in and out of the hole 7 of the substrate 1. It is provided.

  The substrate 1 is a plastic disk, and a ring-shaped recess 9 is formed on the outer peripheral portion of the bottom surface thereof, and a ring-shaped magnet 2 is adhered and bonded to the recess 9. Further, the substrate 1 has a hole 7 formed in the central portion thereof as described above, and a concave portion 10 having a diameter larger than that of the hole 7 is formed on the upper surface thereof so as to be concentric with the hole 7. When pushed, the head 5 of the heel 6 and a part of the heel stopper piece 4 (the peripheral portion of the head 5) are accommodated in the recess 10. In addition, the substrate 1 is provided with a plurality of knobs 11 on the upper surface of the outer peripheral surface at intervals along the circumferential direction.

  The cover 3 covers the upper surface of the substrate 1 so as to swell in a dome shape, and its edge is attached to the outer peripheral surface of the substrate 1 and the magnet 2. A through-hole 12 through which the flange 11 is passed is formed in the edge. . Further, the cover 3 uses an elastic material (for example, vinyl resin) that swells in a dome shape, and a band-shaped tacking piece 4 is provided inside a portion covering the upper surface of the substrate 1, and the upper side of the hole 7 of the substrate 1. The cover 3 and the tacking piece 4 have a double structure that can be opened and closed by extending radially from the covering portion and continuing both ends of the tacking piece 4 to the cover 3. As an example of manufacturing the cover 3 and the tacking piece 4, the resin sheet is thickened by the thickness of the tacking piece 4, integrally formed to, for example, 1 mm as a whole, and cut in a direction to reduce the thickness. The stopper piece 4 is separated from the cover 3 except at both ends. And when fixing the cover 3 to the board | substrate 1, after extending the space | interval between the cover 3 and the tacking piece 4, the needle part 8 of the collar 6 is stabbed into the center part of the tacking piece 4, and the cover 3 and the tacking piece The head 5 of the heel 6 is accommodated in the gap G of 4, and the edge of the cover 3 is pasted across the outer peripheral surface of the substrate 1 and the magnet 2 while passing the needle portion 8 through the hole 7 of the substrate.

  The thumbtack of the present invention described above is used in the following manner. As shown in FIG. 1 (a), in the case of fastening to an object 13 such as iron, the bottom surface side of the substrate 1 is applied to the object 13 and the force of the magnet 2 is used to fasten it to the object 13. . Further, as shown in FIG. 1B, when the fixed object 13 is not attached by the magnet 2, for example, wood, the cover 3 with the bottom surface side of the substrate 1 placed on the fixed object 13. Is pushed with the finger, the cover 3 and the hook stopper 4 are deformed and pressed against the upper surface of the substrate 1, and the needle portion 8 of the flange 6 protrudes from the hole 7 of the substrate 1 and pierces the fixed object 13. When the finger is released as shown in FIG. 1 (c), the cover 3 swells in a dome shape due to the restoring force even though the tacking piece 4 is deformed along the substrate 1. Further, when removing the thumbtack, there is a gap in which a fingertip can be inserted between the heel 11 and the object 13 to be fixed. Just pull it against. When the needle portion 8 comes out of the object 13 to be fixed, as shown in FIG. 1 (a), the tacking piece 4 is brought into a state along the inner side of the cover 3 by the restoring force, and the needle portion 8 enters the hole 7 of the substrate. Be contained.

  The present invention is not limited to the above embodiment. For example, the tacking piece 4 may be a separate product completely separated from the cover 3. In this case, the tacking piece 4 is also fixed to the substrate 1 in the same manner as the cover 3.

(A), (b) and (c) are cross-sectional views showing the usage state of the thumbtack of the present invention. (A), (B), and (C) are a cross-sectional view, a plan view, and a bottom view, taken along line AA, showing the thumbtack of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Board | substrate 2 Magnet 3 Cover 4 Claw piece G Gap 5 Head 6 鋲 7 Punching hole 8 Needle part 11 鍔 13 Fixed object

Claims (2)

The substrate (1) has a magnet (2) on the bottom side, the substrate (1) has a through hole (7) penetrating in the thickness direction, and the substrate (1) is covered with an elastic cover (3) that swells in a dome shape. ) And the upper side of the punched hole (7) of the substrate (1), and the elasticity of the tacking piece (4) along the inside of the cover (3), the cover (3) and the tacking piece ( 4) has the head (5) of the heel (6) in the gap (G) between them, and the needle portion (8) of the heel (6) penetrates the rivet stopper piece (4) to remove the hole ( 7)
When the cover (3) is pushed against the object to be fixed (13) with no magnet attached to it against its elasticity, the cover (3) and the tacking piece (4) are deformed, and the board is removed. When the needle part (8) of the heel protrudes from the hole (7) and pierces the fixed object (13) and the push of the cover (3) is released, the heel stopper piece (4) remains deformed and the cover (3 ) Bulges into a dome shape due to elasticity,
A thumbtack characterized in that when the hook needle part (8) is pulled out from the fixed object (13), the hook stopper piece (4) is restored to a state along the dome-shaped cover (3) by elastic force. .   The edge of the cover (3) is fixed to the outer peripheral surface of the substrate (1), and a knob hook (11) protrudes from the upper portion of the outer peripheral surface of the substrate (1) so as to penetrate the cover (3). The thumbtack according to claim 1.

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