JPH0687709U - Hidden nails - Google Patents

Abstract

(57) [Summary] [Purpose] A hidden nail in which a threaded nail part is formed on one side through the brim and multiple nail parts are formed on the other side of the brim must use a screwdriver when screwing the threaded nail part. I had to do it.
The purpose is to enable the hidden nail to be used only with a hammer. [Constitution] In the hidden nail, a normal nail portion 25 is formed on one side via a collar 21, and a plurality of nail portions 13 independent of a part of a flat surface portion 22 on the opposite side of the collar which is connected to a collar outer circumference 23. To form. A protrusion 15 is formed on the nail tip 14 of the nail portion toward the outside of the hidden nail. The rod-shaped shaft rod 11 reaches between the nail portions 13 and 13 and reaches the central portion of the brim plane portion 22 to be incorporated therein. Even with a hidden nail that has nail tips on both ends and one of which forms multiple nails, by incorporating a shaft rod and integrating it, the hidden nail can be used with a hammer alone.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hidden nail used for assembling timber used for houses and furniture.

[0002]

[Prior art]

 As a conventional hidden nail of this type, for example, there is an application in 1993 Utility Model Registration Application No. 17776.

A hidden nail filed in Japanese Utility Model Registration Application No. 17776 in 1993 has a threaded nail portion formed on one side through a collar, and a flat surface portion on the opposite side of the collar is connected to the outer periphery of the collar. Form multiple nails in part, form a protrusion toward the outside of the concealed nail at the nail tip of the nail, and make a cross-shaped recess for inserting a screwdriver in the center of the flat surface of the collar or The concealed nail is characterized by forming a hexagonal concave portion and a groove crossing the flat surface portion.

In the hidden nail, when a screw nail portion is screwed into one of the assembly members, the screw nail portion is screwed in, and then the nail portion on the opposite side is hammered into the other assembly member to form two assembly members. It is designed to be fixed.

[0005]

[Problems to be solved by the device]

 Since the hidden nail of utility model registration application No. 17776 in 1993 has a screw-like shape on one side through the collar, a screwdriver must be used when screwing the screw nail into one assembly member. There was a problem that the hidden nail could not be used unless it was done.

Since the hidden nail is configured to use a driver, a screw nail portion having a screw shape on one side is formed through the collar, and the driver is inserted into the flat surface portion of the collar. However, there is a problem that the structure has a complicated structure in which a cross-shaped concave portion or a hexagonal concave portion and one groove are formed.

[0007]

[Means for solving the problem]

 In order to achieve the above-mentioned object, the hidden nail of the present invention has a normal nail part formed on one side through a brim and a flat surface part on the opposite side of the brim so that it can be driven only with a hammer. Connect to form multiple nails. A concealment in which both ends form a nail tip and a plurality of nails are formed through the collar by making the structure such that a rod-shaped shaft rod is incorporated between the plurality of nails to reach the center of the flat surface portion. Even with nails, the end of the shaft rod can be hammered, and the nail portion can be generally hammered.

[0008]

[Action]

 When fixing two assembly members with a hidden nail, first, the hidden nail is erected perpendicularly to the fixing surface of one of the assembly members, and the ordinary nail tip is applied to the fixing surface. Next, prepare a hammer, hit the end of the shaft with a hammer, and then hit the ordinary nail part. At this time, hit it until the surface of the assembly member and the flat surface of the collar are horizontal. After that, pull out the shaft rod with your fingers and discard it, while the linear recess of the shaft rod acts as a slip stopper.

Next, the other assembly member is prepared, the fixing surface of the assembly member is applied to the tip of the nail portion, and the opposite surface of the assembly member is hit. In this way, the hidden nail used by driving the nail portion into the other assembly member does not appear on the surface of the assembly member, and serves to fix the two assembly members to each other.

The projection of the nail portion protruding toward the outside of the nail tip serves to prevent the nail portion from coming off from the assembly member when the nail portion is driven into the assembly member.

[0011]

【Example】

 Hereinafter, first and second embodiments of the present invention will be described with reference to the drawings. 1 and 3 show a first embodiment of the present invention.

As shown in FIG. 1, the hidden nail 10 forms a normal nail portion 25 on one side through a collar 21, and a flat portion 22 connected to a flat portion 22 on the opposite side of the collar and a collar outer periphery 23. Three independent nail portions 13 are formed in a part of the above, and a nail tip 14 that forms a protrusion 15 toward the outside of the hidden nail is formed at the tip portion of the nail portion. A rod-shaped shaft rod 11 is installed between the nail portions, reaching the flat surface portion 22, for example. A part of the side surface of the nail part and a part of the side surface of the shaft stick in close contact with each other. The shaft rod (11) has a linear recess (12) formed in a part of the rod-shaped periphery.

The collar 21 is provided between the ordinary nail portion 25 and the nail portion 13 so as to surround the ordinary nail portion 25. The collar 21 has a larger diameter than the ordinary nail portion 25, and is formed so as to be inclined 24 from the outer periphery 23 of the collar to the ordinary nail portion 25. A flat surface portion 22 is formed on the opposite side of the brim, and the nail shafts of three independent nail portions 13 are connected to a part of the flat surface portion which is connected to the outer periphery 23 of the brim flat surface portion.

The nail portion 13 is connected to a part of the collar flat portion 22 to form a nail shaft, and the side surface facing the outside of the nail shaft has a side surface having the same shape as a part of the collar outer periphery 23. The nail tip 14 is formed on the tip end of the nail portion 13, the sharp tip of the nail tip 14 is formed at an acute angle, and the nail tip 14 is formed by four inclined surfaces. The protrusion 15 of the nail tip is inclined from the tip of the nail tip 14 toward the tip of the nail, and projects toward the tip of the nail at a right angle from the side surface of the nail shaft. That is, a part of two of the four inclined surfaces forming the nail tip 14 protrudes toward the outside of the hidden nail from the nail shaft side surface, and a plane that protrudes at a right angle from the nail shaft side surface. Thus, the protrusion 15 is formed. The hidden nail 10 can be manufactured by pressing a heated iron material and grinding it. As for the size of the hidden nails and the number of nail portions, various kinds of hidden nails may be manufactured according to the material of the assembly member and the size of the members.

When fixing the two assembly members by the hidden nail 10 shown in FIG. 3, first, the hidden nail 10 is erected vertically on the fixing surface b ′ of one assembly member B to fix the tip of the ordinary nail portion 25. Touch it in place on the surface. Next, the collar is pinched with a finger and the end of the shaft rod 11 is hit with a hammer, and the ordinary nail portion 25 is driven into the member B until the flat surface portion 22 and the fixing surface b'are horizontal.

Next, the assembly member A is prepared, the tip end of the nail tip 14 of the nail portion is applied to a predetermined position of the fixing surface a ′, and the opposite surface a ″ of the assembly member A is hammered through with a hit tree. The two assembled members can be fixed to each other without using the hidden nail 10 used on the member surface.

When the nail portion 13 is driven into the surface a ′ of the assembly member A, if the surface a ″ of the assembly member A is directly hit with a hammer, scratches are likely to occur. Therefore, hit a hitting tree and hit it with a hammer from above. At this time, since the number of nails 13 is large, it can be easily driven by tapping with a heavy hammer.

FIG. 2 shows a second embodiment of the present invention. The hidden nail 20 has a normal nail portion 25 formed on one side through a brim 21 and four independent nail portions 13 formed on a part of the flat surface portion 22 on the opposite side of the brim which is connected to the outer circumference 23 of the brim. A rod-shaped shaft rod 11 is installed between the nail portions, reaching the flat surface portion 22 of the collar. In addition, with respect to other configurations, the same reference numerals are given to the same types of parts as those in the first embodiment, and the duplicated description will be omitted.

[0019]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects.

A conventional hidden nail having a plurality of nail portions on one side through a brim requires a driver, but by incorporating a shaft rod between the nail portions and integrating them, the concealed nail is provided. Even a hidden nail that has multiple nails on one side can be driven with a hammer and is easy to use, which has the effect of improving work efficiency.

By incorporating the shaft rod, a cross-shaped concave portion or a hexagonal concave portion for inserting a driver of the flat portion of the hidden nail and a groove crossing the collar are eliminated, and a nail nail is also used. By making the part a normal nail part, there is an effect that the structure is simplified and manufacturing is easy.

[0022]

[Brief description of drawings]

1A is a front view showing a concealed nail according to a first embodiment of the present invention, FIG. 1B is a plan view thereof, and FIG. 1C is a bottom view thereof.

2A is a front view showing a hidden nail according to a second embodiment of the present invention, FIG. 2B is a plan view thereof, and FIG. 2C is a bottom view thereof.

FIG. 3 is a sectional view showing a usage state of the hidden nail according to the first embodiment.

[Explanation of symbols]

 10 Hidden nail 20 Hidden nail 11 Shaft bar 13 Nail part 21 Brim 25 Normal nail part

Claims (1)

[Scope of utility model registration request] 1. A normal nail portion (25) is formed on one side through a collar (21). Flat part (2
In 2), a plurality of independent nail parts (13) are formed in a part connected to the collar outer circumference (23). At the tip of the nail (13),
A nail tip (14) is formed that forms a protrusion (15) protruding toward the outside of the hidden nail. A rod-shaped shaft rod (11) is installed between the plurality of nail portions (13) so as to reach the central portion of the flat surface portion (22). The shaft rod (11) has a linear recess (12) formed in a part of the rod-shaped periphery. A hidden nail (10, 20) having the above-mentioned configuration.