JP2010228439A - Thumbtack assembly - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide thumbtacks having greater safety than any thumbtacks produced using conventional techniques. <P>SOLUTION: A thumbtack assembly is provided with the following requirements (1)-(4). (1) The thumbtacks is equipped with: a first surface 102 that forms a pressurizing surface; a second surface 106 that projects a needle 104 in the vertical direction relating to the first surface 102; and a trunk 108 that couples the first and second surfaces. (2) The trunk 108 has an accommodating part 110 that accommodates the other needle 104'. (3) The accommodating part 110 is provided on the second surface 106 and at the end of the trunk 108, and opens toward the outside peripheral direction. (4) In the accommodating part 110 of the trunk of one of the thumbtacks, the needle of the other thumbtack is accommodated, and two thumbtacks are coupled so that the second surfaces 106, 106' substantially are mated with each other to form the thumbtack assembly. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a thumbtack assembly in which two thumbtacks are connected.

  A thumbtack is a stationery that has been used daily since ancient times. Until about 30 years ago, a structure in which a disc was installed as a pressing part on one side of the needle was used, but this structure landed parallel to the floor when it was accidentally dropped on the floor. In many cases, the needles point up vertically, creating a dangerous situation. For this reason, the thumbtack in which the shape of the pressing part is devised so that the needle does not turn upward even when it is accidentally dropped on the floor or the like is the current mainstream (prior art 1).

  FIG. 4 is a perspective view for explaining a thumbtack of prior art 1. FIG. In FIG. 4, the thumbtack 40 includes a first surface 402 that forms a pressing surface, a second surface 406 that projects a needle 404 in a direction orthogonal to the first surface 402, a first surface 402, and a second surface The body 408 is connected to the surface 406.

  Apart from the above, a thumbtack in which the needle protrudes only when it is pressed has also been proposed (Prior Art 2. See Patent Document 1).

  However, in both prior arts 1 and 2, carrying a thumbtack in a pocket is problematic in terms of safety. In the case of prior art 1, there is a risk that the protruding needle penetrates the clothing and reaches the body. Even in the case of the prior art 2, for example, when a thumbtack is seated in a rear pocket of a trouser, pressure is applied to the inside of the pocket, and the needle may protrude and penetrate the clothing.

Patent Document 2 includes a pair of thumbtack, each of which has a head and a connection surface connected to each other on the head, and a center point at the center on the connection surface. Each of the connecting surfaces of the pair of pushpins is provided with a needle portion extending outward from the head and an insertion hole extending from the connection surface toward the inside of the head. There is disclosed a connecting member of a thumbtack characterized by having a structure in which a needle part can be inserted and stored in correspondence with each other's needle part.
5 to 6 are perspective views for explaining the thumbtack connection body described in Patent Document 2. FIG.
In FIG. 5, the thumbtack 50 includes a first surface 502 that forms a pressing surface, and a second surface 506 that projects a needle 504 in a direction orthogonal to the first surface 502, as in the above-described prior art 1. The body portion 508 connects the first surface 502 and the second surface 506, and the body portion 508 further includes a storage portion 510 that stores the other needle via the second surface 506. In addition.
6 (a), the needles 504 and 504 ′ of the thumbtack 50 and 50 ′ are opposed to each other, and the needles 504 and 504 ′ are inserted into each other's storage portion 510, so that FIG. Thus, a connected body is formed.
However, in the technique of Patent Document 2, it is difficult for a child or an elderly person to insert the needles 504 and 504 ′ into the mutual storage portion 510, and there is a risk of puncturing a finger if the insertion fails. .

JP 2001-96989 A Utility Model Registration No. 3128501

  Accordingly, an object of the present invention is to provide a thumbtack that is further safer than the prior art.

The invention described in claim 1 is a thumbtack assembly in which two thumbtacks are connected, each having the following requirements (1) to (4).
(1) The thumbtack includes a first surface that forms a pressing surface, a second surface that protrudes a needle, and a body portion that connects the first surface and the second surface.
(2) The body portion further includes a storage portion for storing the other needle.
(3) The storage portion is provided at the end of the second surface and the body portion, and is opened toward the outer peripheral direction.
(4) By storing the needle of the other thumbtack in the housing part of the barrel of one thumbtack, the two thumbtacks are connected so that the second surfaces substantially coincide with each other, and the thumbtack assembly is It is formed.
According to a second aspect of the present invention, there is provided a thumbtack assembly according to the first aspect, wherein a locking means is provided on the inside of the needle and the storage portion, and the connection between the two thumbtacks is strengthened. is there.
The invention according to claim 3 is the thumbtack assembly according to claim 1 or 2, characterized in that one thumbtack and the other thumbtack are attracted to each other by magnetic force.

  According to the present invention, it is possible to provide a thumbtack having higher safety than the prior art.

It is a perspective view for demonstrating an example of the thumbtack in the thumbtack assembly of this invention. It is a perspective view for demonstrating an example of the formation method of the thumbtack assembly of this invention. It is a perspective view for demonstrating another example of the thumbtack in the thumbtack assembly of this invention. It is a perspective view for demonstrating the thumbtack of a prior art. It is a perspective view for demonstrating the connecting body of the thumbtack of patent document 2. FIG. 10 is a perspective view for explaining a method of forming a thumbtack connection body described in Patent Document 2. FIG.

Hereinafter, the present invention will be described in more detail with reference to the drawings.
FIG. 1 is a perspective view for explaining an example of a thumbtack in the thumbtack assembly of the present invention.
1, the thumbtack 10 used in the present invention includes a first surface 102 that forms a pressing surface, a second surface 106 that projects a needle 104 in a direction orthogonal to the first surface 102, A body portion 108 that connects the first surface 102 and the second surface 106 is provided.
The barrel 108 further includes a storage portion 110 that stores the other needle via the second surface 106. The storage portion 110 is provided at the end of the second surface 106 and the barrel 108, It is opened toward the outer peripheral direction shown in the arrow A direction.
The body portion 108 has a size longer than the protruding length L of the needle 104 in the pressing direction.
In addition, in the form of FIG. 1, although the 1st surface 102 and the 2nd surface 106 were shown as a flat surface, a curved surface may be sufficient.

Next, a method for forming a thumbtack assembly according to the present invention will be described.
FIG. 2 is a perspective view for explaining an example of a method for forming a thumbtack assembly of the present invention.
As shown in FIG. 2A, first, two thumbtacks 10 and 10 ′ are prepared. The thumbtack 10, 10 ′ has the same shape. Subsequently, the needles 104 and 104 ′ of the thumbtacks 10 and 10 ′ are made to face each other. At this time, in the form of FIG. 2A, the needle 104 ′ of the thumbtack 10 ′ and the storage part 110 of the thumbtack 10 face each other. Next, as shown in FIG. 2B, the needle 104 ′ of the thumbtack 10 ′ is housed in the housing part 110 of the thumbtack 10, and the two surfaces 106 and 106 ′ are substantially aligned with each other. The thumbtack is connected to form the thumbtack assembly of the present invention.

In the above embodiment, when the needle 104 ′ of the thumbtack 10 ′ is stored in the storage part 110 of the thumbtack 10, the direction of the force applied to the needle 104 ′ is not the needle tip direction of the needle 104 ′ but orthogonal to the needle tip direction. Therefore, there is an effect that there is no risk of puncturing the fingertip of the needle tip.
In addition, since the two thumbtacks are connected so that the second surfaces 106 and 106 'are substantially coincident with each other, the surface area of the thumbtack assembly is further reduced, and the bulk during the storage is reduced. Since the second surface is not easily exposed to the force from the outer vertical direction, the thumbtack assembly is less likely to be detached from the force from the direction, and the safety is improved. As used herein, the second surfaces substantially coincide with each other when the thumbtack connector is formed, the area of the second surface is 52% or more, preferably 72% or more, more preferably It is preferable from the viewpoint of the above-mentioned effect that 92% or more are in contact with each other. When the second surface is a curved surface, the above percentage is calculated based on the contact area when the second surface is assumed to be a flat surface.
Although not shown, when connecting the two thumbtacks 10 and 10 ′, the needle 104 ′ is moved to the second side without causing the needle 104 ′ of the thumbtack 10 ′ and the storage portion 110 of the thumbtack 10 to face each other. If the end portion (circumferential portion) of the surface 106 is slid, the storage portion 110 can be found, and a thumbtack assembly can be easily formed even for an elderly person or a child.

As shown in FIG. 2A, the storage portion 110 has a groove portion M formed from the end portion of the second surface 106 toward the center point C direction.
In the groove M, the length in the direction of the center point C is preferably longer than the thickness of the needle 104 ′ so as to completely accommodate the needle 104 ′, but is particularly limited as long as the needle tip of the needle 104 ′ is not exposed. Not. The groove M has a constant width W and extends toward the end of the body 108 toward the first surface 102. In the form of FIG. 2, the groove portion M is provided over the entire length of the body portion 108, but the length of the groove portion M increases or decreases depending on the length of the needle 104 ′. The width W of the groove portion M is substantially the same as or slightly smaller than the thickness of the needle 104 ′ for the purpose of improving the connection and fixing of the thumbtack assembly. In general, since the body portion 108 is made of resin, even if the width W has the small size, the needle 104 'is bent to some extent by the force applied when the needle 104' is stored, and there is no problem in storage.

FIG. 3 is a perspective view for explaining another example of the thumbtack in the thumbtack assembly of the present invention.
The thumbtack 30 in FIG. 3 has substantially the same shape as the thumbtack 10, 10 ′ described in FIG. 2, but is characterized in that locking means 302, 304 are provided in part of the needle 104 and the storage part 110.
The locking means 302 of the needle 104 is a pair of cut portions A and A ′ provided on the side of the needle 104 as shown in a partially enlarged view S1. On the other hand, as shown in the partially enlarged view S2, the latching means 304 of the storage portion is mountain portions B and B ′ that make a part of the width W of the groove portion M narrow on the second surface 106.
In this embodiment, when the thumbtack assembly of the present invention is formed, the pair of notches A and A ′ provided on the side of the needle 104 are locked by the peaks B and B ′ provided in the groove M. This is preferable because the connection between the two thumbtacks is further strengthened. It is to be noted that the size between the peak portions B and B ′ is preferably the same as or slightly thinner than the thickness of the needle 104 at the cut portions A and A ′, as described above.

  Although not shown in the drawings, if the second surface 106 is provided with a magnet in the forms of FIGS. 1 to 3 and the second surface of one thumbtack and the other thumbtack are attracted to each other by magnetic force, The connection of the thumbtack assembly is preferable because it further strengthens the connection.

10, 10 'thumbtack 102 first surface 104, 104' needle 106, 106 'second surface 108 trunk 110 storage unit 302, 304 locking means A, A' notch B, B 'mountain M groove

Claims (3)

A thumbtack assembly in which two thumbtacks are connected, each having the following requirements (1) to (4).
(1) The thumbtack includes a first surface that forms a pressing surface, a second surface that protrudes a needle, and a body portion that connects the first surface and the second surface.
(2) The body portion further includes a storage portion for storing the other needle.
(3) The storage portion is provided at the end of the second surface and the body portion, and is opened toward the outer peripheral direction.
(4) By storing the needle of the other thumbtack in the housing part of the barrel of one thumbtack, the two thumbtacks are connected so that the second surfaces substantially coincide with each other, and the thumbtack assembly is It is formed.   The thumbtack assembly according to claim 1, wherein a locking means is provided inside the needle and the storage portion to strengthen the connection between the two thumbts.   The thumbtack assembly according to claim 1 or 2, wherein one thumbtack and the other thumbtack are configured to attract each other by magnetic force.

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