JPH045356Y2 - - Google Patents

Description

[Detailed explanation of the idea] Industrial applications The present invention relates to a push pin.

BACKGROUND ART Conventionally, in most push pins such as thumbtacks, the needle is erected perpendicular to the knob and exposed. Therefore, thumbtacks and the like cannot be carried unless they are stored in a case, and if the thumbtacks and the like fall onto the floor or a chair, people often step on them and injure themselves. Furthermore, there is a drawback that it is difficult to remove a thumbtack or the like from a wall or the like because one's fingers cannot be placed inside the knob.

Problems to be solved by the invention This invention aims to eliminate the drawbacks of conventional push pins, expose the needle when in use, store and lock the needle when not in use, and create a safe push pin that can be carried as is. It is something.

Means for Solving Problems In order to achieve the above-mentioned object, the present invention provides a Z-shaped bendable hinge part having an inclined upright piece at one end of a cover member made of an elastic synthetic resin, and the hinge part The tongue pieces are integrally connected through the cover member, and a needle storage groove having protrusions facing each other on both sides is provided on the upper surface of the cover member perpendicularly to the hinge part, and the tongue piece is provided with an uneven sliding surface on at least one side. A push pin which is clamped by one knob member having a stop and the other knob member, and which fixes a needle whose tip part is housed in a needle storage groove and is latched to a protruding piece by two knob members and a tongue piece. The structure was as follows.

Therefore, when not in use, the tip of the needle is stored and locked in the storage groove of the cover member, so the needle tip is not exposed and is safe, and the entire needle is shaped like a thin plate such as a rectangle or circle. Therefore, you can carry it separately. When in use, the grip member to which the needle is fixed is bent approximately 90 degrees or 180 degrees at the hinge part with respect to the cover member, and the tip of the needle is exposed, so the grip member can be picked up with fingers and pushed into a wall etc. to hold paper sheets, etc. Can be stopped.

When pulling out the push pin, you can easily pick up the knob part of the uneven groove with your fingers, and since it does not slip, you can easily pull it out. Since the parts return to their original plate shapes, the needle tip can be automatically stored in the needle storage groove.

The integrally connected hinge portion, tongue piece, and cover member are molded from a synthetic resin that is soft, elastic, and has strong bending durability, such as polypropylene, polyacetal, urethane rubber, polyethylene, and vinyl chloride. Moreover, the cross-sectional shape of the hinge part is approximately L.
Since it is formed into a shape, it is easy to bend and has high durability. In addition, if the L-shaped upright piece of the hinge part is slightly inclined inward, it will be easier to bend.
Bending durability becomes more effective.

Example An embodiment of the present invention will be described with reference to the drawings.

The cover member 1 has a planar shape obtained by cutting a rectangular flat plate made of elastic synthetic resin from an end face 2 near the diagonal line, and has an approximately L-shaped cross section on the lower edge of the end face 2 with both sides left and the bottom face the same. The hinge portions 3 are bent upward and connected, and a tongue piece 4 of the same thickness is integrally connected to the tip of the hinge portion 3. The hinge portion 3 and the tongue piece 4 are formed into an isosceles triangle with a base slightly shorter than the end face 2 when viewed from above, and the upright piece of the hinge portion 3 is slightly inclined inward to form a Z-shape. The upper surface of the tongue piece 4 is positioned approximately at the center of the thickness of the cover member 1.

A needle storage groove 5 that is perpendicular to the end surface 2 and open toward the end surface 2 is provided on the top surface of the cover member 1, and two projecting pieces 6 are provided on both sides of the needle storage groove 5, facing each other approximately at the center. Two triangular recesses 7 are provided outwardly on both sides of the needle storage groove 5. Further, on the upper surface of the tongue piece 4, a needle fixing groove 10 having a large diameter portion 9 at the rear end is provided on the axis with the hinge portion 3 side open.

One knob member 11 is provided with an insertion part 12 into which the hinge part 3 and the tongue piece 4 are inserted, and when they are inserted, the upper and lower surfaces of one knob member 11 are
It is formed into an isosceles triangle so that the upper surface of the tongue piece 4 and the lower surface of the cover member 1 are flush with each other, and the planar shape when combined with the cover member 1 is approximately square.

The other knob member 13 is an isosceles triangular flat plate that becomes a substantially square planar shape when combined with the cover member 1, and when overlapped with one knob member 11 with the tongue piece 4 in between, the thickness is made to be almost the same as the cover member 1. On the lower surface of the other knob member 13, a needle fixing groove 10' having a large diameter portion 9' at the rear end is provided opposite to the needle fixing groove 10 of the tongue piece 4. It is possible to insert it. On the upper surface of the other knob member 13, a non-slip member 14 is provided with a concave and convex shape perpendicular to the needle fixing groove 10'.

To assemble the push pin, insert the hinge part 3 and the tongue piece 4, which are integrally connected to the cover member 1, into the insertion part of one of the knob parts 11, and insert the rear end of the needle 8 into the tongue piece. The needle 8 is inserted into the needle fixing groove 10 of the piece 4, and the tip of the needle 8 is stored in the needle storage groove 5 of the cover member 1.
Next, the other knob member 13 is welded or adhered to one knob member 11 with the tongue piece 4 in between. At this time, the rear end of the needle 8 is fitted into the needle storage grooves 10, 10' and fixed, and the bulge 15 provided at the rear end of the needle 8 is inserted into the large diameter parts 9, 9' and locked. to prevent it from falling out.

To use the push pin, bend the cover member 1 and the knob members 11, 13 at 90 degrees or 180 degrees at the hinge part 3 to expose the tip of the needle 8 (Fig. 2), and then insert the knob members 11, 13 with your fingers. Pick it up and push it into the wall 16 to lock the paper sheet 17 (FIG. 5).

To remove the push pin, use the knob members 11 and 13.
If you pick it up with your fingers and pull it, you can easily pull it out because there is an uneven anti-slip 14. When the push pin is pulled out, the cover member 1 and the knob members 11, 13 return to their original plate shape due to the restoring force due to the elasticity of the hinge portion 3, and the tip of the needle 8 is stored in the needle storage groove 5, and the tip is inserted into the needle storage groove 5. It is locked by the piece 6.

Effects of the invention As described above, the needle tip of this invention is locked in the storage groove and not exposed when not in use, so it is safe and will not get stuck even if it is dropped on the floor or stepped on. Since the needle tip is in a compact thin plate shape when stored, it can be placed in a case or the like, but it is convenient because it can be carried separately without being placed in a case or the like. In addition, when pulling out a push pin stuck in a wall, etc., the knob is upright and non-slip, making it easy for your fingers to catch it.
Easy to pull out. Furthermore, it has strong bending durability, has a simple structure, and is easy to assemble, so it can be manufactured at low cost.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the embodiment of the present invention when the needle tip is stored, Fig. 2 is a perspective view when the needle tip is exposed, Fig. 3 is a vertical cross-sectional view of Fig. 1, and Fig. 4 is the present invention. FIG. 5 is a perspective view of the device before assembly, and FIG. 5 is a side view of the device in use. DESCRIPTION OF SYMBOLS 1... Cover member, 3... Hinge part, 4... Tongue piece, 5... Needle storage groove, 6... Projection piece, 8... Needle, 1
1... One knob member, 13... The other knob member, 14... Anti-slip.

Claims (1)

[Scope of utility model registration request] A bendable Z-shaped hinge part 3 having an inclined upright piece is provided at one end of a cover member 1 made of an elastic synthetic resin, and a tongue piece 4 is integrally connected via the hinge part 3. , a needle storage groove 5 having protrusions 6 facing each other on both sides is provided on the upper surface of the cover member 1 so as to be orthogonal to the hinge portion 3, and the tongue piece 4 is
The rear end of the needle 8 is held between one knob member 11 and the other knob member 13 having an uneven anti-slip member 14 on at least one side, and the tip part is stored in the needle storage groove 5 and is locked to the protrusion 6. A push pin whose portion is fixed with two knob members 11 and 13 and a tongue piece 4.