JP3002251U - Pushpin for gypsum board - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To provide a thumbtack structure that can be easily positioned and fixed to a gypsum board, and that is firmly fixed. A gypsum board thumbtack including a head 1 protruding outward from a wall surface and at least one vertical pin protruding inward from the lower end surface of the head portion is attached to a pedestal portion 10 of the head 1. It has at least one pin insertion hole 11 penetrating in a direction intersecting at an angle of 45 degrees or less in the downward extension line of the head center line and in the vicinity of its root, and after temporarily fixing it to the gypsum board W with a vertical pin, This is a gypsum board thumbtack in which the cross pin 3 is pushed and fixed to the gypsum board W so as to intersect the downward extension line through each insertion hole 11. Further, the cross pin 3 is inserted and fixed in the insertion hole 11 so that it can be pushed in advance so that the work can be performed with one hand.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a tack for tacking temporarily used when temporarily installing curtains on a wall surface of a gypsum board or the like.

[0002]

[Prior art]

 In recent years, a chess-type thumbtack has been widely used as a fastener for lightweight things such as a calendar as a simple fastener for a plaster board that is commonly used as a wall surface member.

[0003]

[Problems to be solved by the device]

 However, if a thumbtack is used when performing curtain upholstery for temporary decoration in the room, it is easy to pull out due to a load, and it is difficult to securely perform temporary fixing. In addition, it may not be possible to accidentally step on a pushpin that has been accidentally pulled out, and once it is pulled out, it cannot be used again by inserting it into the same hole, and many insertion holes remain on the wall, impairing the aesthetics of the wall. There is. Therefore, in order to make it a thumbtack that is firmly fixed to the gypsum board and is easy to remove after use, it is proposed to project multiple pins from the pedestal, but only pins that vertically penetrate the wall surface are proposed. The deterrent force in the exit direction was insufficient. On the other hand, as a fixture for gypsum board, a method of diagonally crossing and nailing is disclosed (Act No. 3-19799). However, (1) Positioning at the time of driving because of diagonal nailing Is difficult. (2) Since it does not consider removal after use, it has the disadvantage that it is not easy to extract it when re-stopping. (3) In addition, since there are a large number of driving holes, there is a drawback that the appearance of the wall surface is impaired after extraction. In view of the above drawbacks, the present invention has an object to provide a thumbtack structure that can be easily positioned and fixed to the plaster board, and can be firmly fixed, and can be easily fixed again.

[0004]

Means for Solving the Problems The present invention considers a vertical pin of a thumbtack to be a temporary fixing or a positioning pin, and is of a form that can be easily inserted and removed in a direction intersecting with the vertical pin at an angle of 45 degrees or less near its root. It was made paying attention to the fact that the restraining force in the pulling direction can be increased by inserting the reinforcing pin. The head 1 exposed on the wall surface and at least 1 that protrudes inward from the lower end surface of the head portion to the wall surface. In a pushpin for gypsum board composed of vertical pins 2 of the book, (1) In the vicinity N of the base of the vertical pin, (2) Penetrate in a direction intersecting at an angle of 45 degrees or less. Has at least one pin insertion hole 11 that is temporarily fixed to the gypsum board W with the vertical pin 2 and then intersects with the above-mentioned downward extension line through each of the insertion holes 11 (3 when pulling out the knob The click Rosupin 3 having made the head 31 is in the pushpin for gypsum board comprising pushing fixed to the gypsum board W.

[0005]

Embodiment

 If the above invention is applied to a chess-type pushpin, as shown in FIG. 1, the head 1 has a chess shape made of plastic, and one of the vertical pins 2 protrudes inward from the lower end surface of the head toward the wall surface. Is a center pin projecting from the center of the lower end surface along the center line of the head, and the head pedestal 10 intersects the center pin 2 at an angle of 45 degrees or less in the circumferential direction at equal intervals. Has three pin insertion holes 11 ... Penetrating therethrough, and is temporarily fixed to the gypsum board W by the center pin 2, and then the ornament head 31 is inserted into the center pin 2 through the insertion holes 11. The gusset-like cross pin 3 having the crossing is crossed in the vicinity of the center pin base N and pushed into the gypsum board W to be fixed.

In another embodiment, as shown in FIG. 3, the head 1 has a chess shape made of plastic, and one of the vertical pins 2 projects inward from the lower end surface of the head. Is a center pin projecting from the center of its lower end surface along the center line of the head, and the head pedestal portion 10 is equally spaced in the circumferential direction in the tangential direction of a circle C centered on the center pin 2. Also, it has three pin insertion holes 11 '... that penetrate through the center pin at an angle of 45 degrees or less, and after temporarily fixing it to the plaster board W with the center pin 2, A gusset-like cross pin 3 having a decorative head portion 31 crosses the tangential direction with respect to the center pin 2 through each of the insertion holes 11 ′, and is pushed into and fixed to the gypsum board W.

It is preferable that the insertion holes of the pin insertion holes 11 and 11 ′ have a concave shape 12 that receives the lower surface of the decorative head 31 of the cross pin 3. Further, the length of the cross pin 3 needs to be designed so as not to penetrate the gypsum board.

In order to improve workability of the thumbtack, it is preferable that the pushing operation can be performed with one hand. Therefore, it is preferable that the tip of the cross pin 3 be embedded and fixed in the insertion holes 11 and 11 ′ with an adhesive so as to be integrated. As the adhesive, it is preferable to use a silicone-based adhesive having a softness at the time of curing so that the cross pin 3 can be pushed in at the time of curing.

Applying the above idea to a pushpin having a flat head pedestal 10, the pushpins of FIGS. 4 and 5 can be proposed. That is, in the embodiment of FIG. 4, one insertion hole 11 is opened near the root of the center pin 2 protruding from the lower end surface of the pedestal portion 10 at an angle of 45 degrees, and the tip of the cross pin 3 is made of the above silicon. The cross pin 3 can be pushed in with one hand after the center pin 2 is pushed in by fixing it with the system adhesive inserted. In the embodiment shown in FIG. 5, two insertion holes 11 are formed so as to intersect each other at an angle of 45 degrees obliquely near the root of the center pin 2 protruding from the lower end surface of the pedestal portion 10. The tip ends of the cross pins 3 are fixed by being inserted with the silicone adhesive, and after the center pin 2 is pushed, the cross pins 3 can be pushed with one hand. Other than that, the same members are denoted by the same reference numerals and the description thereof is omitted.

[Effect of action and device]

 According to the present invention, as shown in FIG. 2, (1) prior to the main fixing of the cross pin 3, the center pin 2 can be temporarily fixed to the gypsum board, so that the main fixing work can be easily performed. (2) When the cross pin 3 crosses the center pin 2 near its root, it crosses at an angle of approximately 45 degrees or less, which is excellent in preventing slipping out. (3) By using a cross pin 3 having a head that serves as a knob when the cross pin is pulled out, the work of pulling out the cross pin is easy, and the function of the temporary tack is not impaired. (4) Since the cross pin 3 crosses near the root of the center pin 2 and is pushed into the gypsum board, the push holes are concentrated in one place, and scars are less likely to remain. (5) As shown in FIG. 3, it is fixed through three pin insertion holes penetrating in the tangential direction of the circle C centering on the center pin 2 and intersecting the center pin at an angle of 45 degrees or less. By doing so, a greater retaining effect can be obtained than in the case of FIG. (6) Furthermore, by inserting and fixing the tip of the cross pin into the insertion hole so that it can be pushed in, the center pin and the cross pin can be pushed in with one hand, so the original function of the thumbtack is not impaired and the retainer is securely retained. Since it can be removed and is easy to extract, its practical value is extremely high.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a pushpin according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a perspective view showing a second embodiment of the pushpin according to the present invention.

FIG. 4 is a sectional view showing a third embodiment of the pushpin according to the present invention.

FIG. 5 is a sectional view showing a fourth embodiment of the pushpin according to the present invention.

[Explanation of symbols]

 1 thumbtack head 10 base 11, 11 'pin insertion hole 12 recess 2 center pin 3 cross pin 31 decorative head

Claims (5)

[Scope of utility model registration request] 1. A gypsum board thumbtack composed of a head 1 exposed on a wall surface and at least one vertical pin 2 protruding from the lower end surface of the head portion to the inside of the wall surface. Has at least one pin insertion hole 11 penetrating in a direction intersecting at an angle of 45 degrees or less in the vicinity N of the root of the vertical pin, and after temporarily fixing the vertical pin 2 to the gypsum board W, each insertion A pushpin for a gypsum board, which is configured such that the crosspin 3 having a head portion 31 that serves as a knob during extraction so as to intersect with the vertical pin through the hole 11 can be pushed and fixed to the gypsum board W. 2. The head 1 has a chess shape, and one of the vertical pins 2 protruding inwardly from the lower end surface of the head 1 extends along the center line of the head from the center of the lower end surface thereof. The head pedestal 10 has two or more pin insertion holes 11 ... Penetrating in a direction intersecting the center pin 2 at an angle of 45 degrees or less at equal intervals in the peripheral direction. After temporarily fixing to the gypsum board W with the center pin 2, a gusset-like cross pin 3 having a decorative head portion 31 is inserted into the center pin 2 near the base N of the center pin 2 through the insertion holes 11. The pushpin for gypsum board according to claim 1, wherein the pushpin is fixed to the gypsum board W by crossing the gypsum board W. 3. The head 1 has a chess shape, and one of the vertical pins 2 projecting inwardly from the lower end surface of the head toward the wall surface projects from the center of the lower end surface along the center line of the head, The part pedestal part 10 has two or more pin insertions penetrating through the pedestal part 10 at equal intervals in the circumferential direction in the tangential direction of the circle C centered on the vertical pin 2 and intersecting the vertical pin 2 at an angle of 45 degrees or less. Hole 1
Gypsum board W with 1'and 11 'and the vertical pin 2 above
After being temporarily fastened to the
A pushpin for a gypsum board, which is configured such that the gusset-like cross pin 3 having a decorative head 31 crosses the tangential direction through 1'and can be fixed by being pushed into the gypsum board W. 4. The cross pin 3 has an insertion hole 1 at the tip thereof.
The pushpin for gypsum board according to any one of claims 1 to 3, which is fixed in the inside of 1 and 11 'with an adhesive having elasticity at the time of curing and is integrated with the pedestal portion 10 in a pushable state. 5. The gypsum board according to any one of claims 1 to 4, wherein the insertion holes of the pin insertion holes 11 and 11 'have a concave shape 12 that receives the lower surface of the decorative head 31 of the cross pin 3. thumbtack.