JPH11117924A - Internally threaded screw and covering cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an internally threaded screw which enables hardware (dedicated hardware) with a male screw to be easily mounted to necessary position on wall, pillar, furniture, etc., of a building and which enables the hardware with a male screw (dedicated hardware) to be removed when they are not used, and to provide a covering cap for covering the head part of the internally threaded screw in order for the hole- trace after removing the hardware to be inconspicuous. SOLUTION: An internally threaded screw 5 is provided with an internal thread 9 having a screw hole 10 at the head part 6 of the screw body, inside the screw body, and the internal thread 9 is smaller in diameter than the body 7 of the screw body, and is provided up to the depth that will not penetrate through the screw body. By attaching the internally threaded screw to wall, pillar, furniture, etc., special hardware and the like having a male screw engaged with the internal thread 9, can be mount to the wall pillar, etc. Further, a covering cap is fixed to the internal thread 9 of the internally threaded screw or the outer edge part 6' of the head part of the internally threaded screw to cover the head part 6 of the internally threaded screw. When the internally threaded screw is not used, the screw's head part is covered, and the covering cap is colored to the same color as the wall, pillar, etc., when necessary.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screw and a cap for covering a screw head.

[0002]

2. Description of the Related Art Conventional screws are widely used for fastening members such as plates and plates or plates and hardware. In recent years, screws have become the mainstream in place of nails because of the improved performance of electric drills and the fact that screws have better holding power than nails. Utilize the excellent holding power of screws to hang paintings or clothing on walls, pillars, furniture, etc., wire, or attach chains to prevent furniture from falling, or Heaton, or A variety of brackets with external threads, such as hooks, that are screwed directly to a wall and mounted are commercially available. However, these metal fittings with external threads are difficult to install anywhere in ordinary houses and condominiums, because the marks removed are left as scars on walls, pillars, etc. . In addition, the screw hole remaining after the external threaded metal fitting is removed from the wall or the like becomes large each time it is used, and it is difficult to use the same hole repeatedly. At art galleries and art galleries that exhibit works of framed size such as paintings and books, it is difficult to attach or remove external threaded metal fittings at any position on the display wall, etc.
The works are suspended from the picture rails attached to the corners of the ceiling with wires, etc., and the work of exchanging the works is rather time-consuming.

[0003]

A female screw with a male screw can be easily attached to a necessary position such as a wall, a pillar, or furniture of a building, and a male screw with a male screw can be removed when not in use. Provide a covering cap for hiding the head of a screw and a female screw to make the trace of a removed hole inconspicuous.

[0004]

SUMMARY OF THE INVENTION The present invention provides a female threaded screw 5 and a sheath cap 12, wherein the female threaded screw 5 is provided in a screw body with a screw hole 10 in a head 6 of the screw body. The female screw 9 is provided with a female screw 9 having a diameter smaller than the diameter of the body 7 of the screw and having a depth not penetrating the screw body. By providing the female threaded screw, a male threaded metal fitting such as a heaton can be detachably attached. When attaching the male threaded metal fittings, the female threaded screw 5 of the present invention must be attached to a wall,
Attach it to a required position such as a column, and then attach the male screw 3 of the male threaded fitting to the female screw 9 and attach it. When not in use, reversely remove the male threaded fitting by screwing. The covering cap 12 covers the female screw 9 of the female screw 5 or the outer edge of the female screw head 6 so as to cover the female screw head. Accordingly, the head of the female screw 5 is covered so as to hide the head of the screw and the screw hole to make it inconspicuous.

[0005]

1 is a perspective view of a screw according to claim 1;
Is provided with a female screw 9 having a diameter smaller than the diameter of the body 7 of the screw along the central axis of the screw body from the head 6 to the tip 8 of the screw body in the body of the screw. It is provided to a depth that does not penetrate the main body. The screw hole 10 of the female screw 9 is located at the head 6 of the screw main body, and is located almost at the center of a cross or a single cut for screwing the screw main body with a screwdriver. There is no hindrance to the screwing work.

[0006] The covering cap 12 according to claim 2 is provided with a wall,
Alternatively, when the female screw with screw 5 according to claim 1 attached to a pillar or the like is not used, the head 6 of the female screw with screw is covered to cover the head of the female screw with screw and the screw hole 10. The locking projection (13) of the cap is pushed into the female screw 9 provided in the body of the main body and fixed, or the umbrella (1) of the cap is attached to the outer edge 6 'of the screw head 6 or the like.
4) is fitted and fixed to cover the screw head 6. When the female screw 5 covered with the coating cap 12 is used, the screw can be easily removed by pulling and pulling the coating cap 12 with the tip of a screwdriver or the like.

[0007]

According to the first aspect of the present invention, since the female screw with the female screw has the female screw inside the screw main body, the female screw has a male screw suitable for the female screw in addition to the function of tightening the original screw member. Various fittings with external threads (hereinafter referred to as dedicated fittings) can be attached to the screw head 6. Accordingly, it is possible to easily attach or detach the dedicated metal fittings to a wall, a pillar, furniture, or the like to which the female screw 5 is attached. By providing the female screw inside the screw main body, the use of the screw is expanded, and the application range of the dedicated bracket is much wider than before. For example, in a general house, the screw 5 with a female thread is required to be placed at a necessary position such as a wall or a pillar (however,
If the wall where the screws are mounted is hollow, a bar etc. is required inside the wall), so that the dedicated bracket can be used repeatedly, and the dedicated bracket can be replaced according to the purpose of use. . It is easy to attach a dedicated bracket (see FIG. 8A) for preventing furniture from falling due to the earthquake. In museums, gear galleries, cafes, and other buildings that exhibit paintings or calligraphy, instead of the picture rails, a number of female screws 5 are attached in advance to the wall or pillar where the artwork is displayed at appropriate intervals. By placing it, it is possible to post a work such as a painting at a required position using a hanging bracket (see FIG. 8B) and the like, and the work of exchanging the work becomes easy. Further, by attaching the threaded screw 5 to a wall around a hospital bet or the like, it is possible to suspend equipment such as medical equipment provided with the male screw 3 matching the female screw 9 on a wall or the like in an emergency. Further, in an office building or the like, by attaching the female screw 5 to the wall near the window, in the event of a disaster, an evacuation device (such as an evacuation rope equipped with the male screw 3 that matches the female screw 9) can be easily tied to the wall near the window. It is possible and can exert its power in early escape from the window, and it can be removed everyday so it does not get in the way. Since the outer diameter of the female screw 5 is larger than the diameter of the female screw 9 provided inside the screw main body, the pull-out resistance of the screw is much larger than the case where the conventional metal fitting with external thread is directly attached to the wall. become.

[0008] In the case where the dedicated metal fittings are not attached to the screw with female screw 5 according to claim 1 attached to a wall, a pillar, furniture or the like, the screw head 6 is covered with the coating cap 12 according to claim 2. You can do it. By using the same color for the cover cap 12 as the color of the wall or column, the screw head 6 and the screw hole 10 can be hidden and the cover cap itself can be made inconspicuous. By displaying the position of the screw hole of the female screw with emergency,
Alternatively, it can be used as an accent.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; FIG. 1A shows an example in which a heaton 1 among the conventional fittings with external threads is mounted on a wall.
The male screw 3 of the heaton 1 is directly screwed into the wall material 2 and attached. FIG. 1B shows an example in which a hook 4 of a conventional bracket with external threads is attached to a wall. The male screw 3 of the hook 4 is directly screwed into the wall material 2 and attached.

FIG. 2A shows a female screw 5 according to the first embodiment.
FIG. 2B is a perspective view of an example of the internally threaded screw 5, and FIG. 2C is a partially broken perspective view of an example of the internally threaded screw 5. A female screw 9 having a diameter smaller than the diameter of the body 7 of the screw main body is provided in the screw main body.
0 is provided on the head 6 of the screw body, and the female screw 9 is provided to a depth not penetrating the screw body. 6 'is the outer edge of the screw head.

FIG. 3 is a view showing an example of the covering cap 12 according to the present invention, which is made of plastic or the like, and can be arranged in various colors according to the colors of walls, columns and the like.
12 is a covering cap, 13 is a locking projection for fixing the covering cap to the female screw of the female screw, and 14 is an umbrella of the covering cap. When the covering cap is fixed to the female screw, the fixing projection 13 is fixed by pushing the locking projection 13 into the screw hole 10, and the covering cap 12 is pulled by being pulled with a screwdriver or the like, and the locking projection 13 is pulled. It can be removed by pulling it out.

FIGS. 4A and 4B show a case where the covering cap 1 of FIG.
FIG. 6 is a view showing a state in which the fixing member 2 is fixed. Covered cap 1
The fixing projections 13 are fixed by pushing the locking projections 13 into the screw holes 10 located in the female screw head 6. Covered cap 1
By making the color of 2 the same as the color of the wall or column to which the female screw is attached, the head 6 of the female screw and the screw hole 10 can be hidden and the covering cap 12 can be made inconspicuous. It is.

FIG. 5 is a sectional view showing an example in which the female threaded screw 5 according to the first aspect is mounted on a concrete wall 16. The concrete wall 16 is formed by drilling holes in the concrete wall.
This is an example in which the screw 5 with an internal thread is fixed with an adhesive 17. 9
Is a female screw provided in the screw body, and 10 is a screw hole.

FIG. 6 is a cross-sectional view of an example in which the heaton 1 is attached as a special fitting to the female screw 5 according to the first embodiment, and the male screw 3 of the special fitting is screwed into the female screw 9 of the female screw 5. Reference numeral 18 denotes a washer or packing for preventing the screws from being loosened. When not in use, reverse the screw to remove the dedicated bracket. When the female screw is mounted on a wall, a pillar, furniture, or the like, the special fitting can be used repeatedly as many times as necessary, and can be changed to a special fitting having a different shape depending on the purpose of use.

FIGS. 7A, 7B and 7C show an example of a dedicated metal fitting to be attached to the female screw 5 according to the first aspect, which is a metal fitting for suspending or supporting an object. A male screw 3 for screwing into a female screw 9 provided in the body of the female screw 5 is provided.

FIG. 8A shows an example of a special fitting used to prevent furniture or the like from tipping over. An instrument for connecting a chain or a wire to the male screw 3 screwed into the female screw 9 of the female screw 5 and connecting the tip to furniture or the like. Is attached. Fig. 8-
Reference numeral b denotes an example of a dedicated bracket for suspending picture frames such as a picture, in which a string or a wire is connected to the male screw 3 screwed into the female screw 9 of the female screw 5, and a hook is attached to the end thereof.

[0017]

The female screw according to the first aspect of the present invention can be mounted on a wall, a pillar, furniture, or the like of a general house, a museum, a gear, a coffee shop, a hospital, an office building, or the like, so that the male screw matches the female screw of the female screw. It is possible to easily attach / detach various kinds of special fittings having the above, and it is possible to expand the application range of the special fittings while expanding the use of the screw. In addition, the coated cap according to the second aspect is the first aspect.
By covering the screw head with female thread described above, it is possible to make the presence of the screw with female thread inconspicuous when not used.

[Brief description of the drawings]

FIG. 1-a is a mounting example of a conventional heaton with a male screw.

FIG. 1-b is a mounting example of a conventional bracket with a male screw.

FIG. 2-a is a sectional view of an example of a female screw;

FIG. 2-b is a perspective view of an example of a female screw;

FIG. 2-c is a partially cutaway perspective view of an example of a female screw;

FIG. 3 shows an example of a coated cap.

FIG. 4-a is a view showing a state in which a covering cap is fixed to the head of a female screw;

FIG. 4-b is a view showing a state in which the covering cap is fixed to the head of the female screw;

FIG. 5 is a sectional view of an example in which a female screw is attached to a concrete wall.

FIG. 6 is a cross-sectional view of an example in which a dedicated bracket is attached to a female screw.

FIG. 7-a is a view of an example of a dedicated metal fitting for hanging an object.

FIG. 7-b is a diagram of an example of a dedicated metal fitting for supporting an object.

FIG. 7-c is a view of an example of a dedicated bracket for hanging an object.

FIG. 8A is a diagram of an example of a fitting for preventing furniture and the like from tipping over.

FIG. 8B is a view of an example of a dedicated bracket for hanging picture frames.

[Explanation of symbols]

 1-Heaton 2-Wall material 3-External thread 4-Hook 5-Screw with female thread 6-Screw head 6 '-Outer edge of screw head 7-Screw body 8-Screw tip 9-Female screw 10-Screw hole 11-Driver Notch 12-Insulated cap 13-Engagement projection 14-Umbrella 15-Column 16-Concrete wall 17-Adhesive 18-Washer 19-Dedicated bracket for furniture overturning 20-Dedicated bracket for frame hanging

Claims (2)

[Claims] From the head (6) of the screw body toward the tip (8), a female screw (9) having a diameter smaller than the diameter of the body (7) of the screw is formed along the central axis of the screw body. Female threaded screw (5) provided to a depth that does not penetrate the body. 2. The female screw (5) according to claim 1, wherein the female screw (9) is fixed by pushing the locking projection (13) of the covering cap into the female screw (9), or the outer edge (6 ') of the female screw head. )
The umbrella (14) of the covering cap is fitted and fixed to the connector, and when it is removed, the locking projection (13) is pulled out from the female screw (9).
Alternatively, a covering cap (12) for covering the head (6) of the female threaded screw which can be detachably attached by removing the umbrella (14) from the outer edge portion (6 ') of the screw head.