JP3339965B2 - Member fixture - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixture for a member such as a nail or a nail.

[0002]

2. Description of the Related Art As an example of conventional technology, Japanese Utility Model Application
-196914. In this technique, a leg portion of a nail is divided into a pair of leg pieces along an axial direction, and a thin strip that is easily bent is sandwiched between the leg pieces. Then, according to the driving of the nail into the aerated concrete, the concrete layer enters between the two legs from the lower end of the legs,
The strip is folded upward in a zigzag manner, and the two leg pieces are opened in an eight-letter shape to serve as anchors.

[0003]

However, according to the above-described technique, the nail is broken into the striking layer at the same time as the nail is driven, so that the nail is undesirably broken, the cavity is formed, and the pull-out resistance is low.

[0004] It is an object of the present invention to solve the above-mentioned problems and to provide a member fixing device which does not inadvertently break a driving layer upon driving.

[0005]

Means for Solving the Problems To solve the above problems, the configuration of the present invention is as follows. That is, an outer cylinder having a flange at one end of the cylinder main body and having a hole near the other end, a sharply formed or separately fixed point at the other end of the outer cylinder, and inserted from one end of the outer cylinder And a rod-shaped anchor member interposed between the other end of the shaft and the apex, or integrally formed with or fixed to the shaft, and the other end facing the hole of the outer cylinder. The anchor member is formed by bending a wire in an inverted U-shape, and when the shaft is hit, the anchor member keeps the anchor member until the outer cylinder flange reaches the object to be fixed or until immediately before reaching. The anchor member is pressed against the inner wall of the outer cylinder by its elastic restoring force so as to generate a frictional force that does not come out of the outer cylinder hole.

[0006]

[Function] When the head of the shaft is hit and driven with a hammer, the outer cylinder and the shaft have a frictional force between the outer cylinder and the anchor member. Driving stops. In the subsequent blow, the shaft head is driven into the surface of the flange of the outer cylinder. At this time, the anchor member comes out of the hole of the outer cylinder and enters the inside of the base material. This provides an anchor against the withdrawal force.

[0007]

Embodiments of the present invention will be described below based on one embodiment shown in the drawings. 17 and 18, an outer cylinder 1 has a concentric round flange 1b on the upper end of a steel cylindrical body 1a.
And the lower end is bent to form a pointed portion 1d. In addition, holes 1c are provided at two locations on the diameter near the apex 1d that face each other. The hole 1c of the outer cylinder is a long hole that is long in the axial direction of the outer cylinder.

The cylindrical body 2a of the steel shaft 2 is inserted from the upper end of the outer cylinder 1 and has a concentric round head 2b at the upper end. A positioning recess 2d is formed on the lower end surface of the shaft 2. Then, an adhesive (or an adhesive) 3 is applied to the outer periphery of the cylindrical main body 2a, and this is applied to the cylindrical main body 1a of the outer cylinder 1.
The shaft 2 is prevented from coming off due to adhesion or friction with the inner surface of the shaft.

Further, a plurality of circumferential convex ridges 2e for sealing are formed on the outer periphery of the shaft by rolling. The rotating round die is pressed against the rotating shaft, and the circumferential ridge 2e is raised by plastic deformation (height: about 0.1 to 0.2 mm). Approximate dimensions make it easy to fit the outer cylinder 1, have a waterproof effect, and do not hinder driving of the shaft 2.

The rod-shaped anchor member 4 is interposed between the lower end of the shaft 2 and above the apex 1c, and the lower end faces the hole 1c of the outer cylinder 1. The anchor member 4 is made of a round wire made of steel, which is bent in an inverted U-shape, and both ends 4 a of the wire are on the lower side, and these both ends 4 a are bent so as to face the hole 1 c of the outer cylinder 1. ing.

As shown in FIG. 17, the wire of the anchor member 4 is bent in an inverted U-shape, and when the shaft 2 is hit, the outer cylinder flange 1b reaches or reaches the object to be fixed. Until just before, the anchor member is pressed against the inner wall of the outer cylinder 1 by its elastic restoring force so that the anchor member 4 generates a frictional force that does not come out of the outer cylinder 1c hole. Here, as experimental examples (examples), examples of dimensions when a wood board is fixed to the surface of the lightweight cellular concrete base material B and when a particle board is fixed are shown. When the diameter of the round wire of the anchor 4 is 1.1 mm, the inner diameter of the outer cylinder 1─the outer diameter is 2.5 mm─3.5 mm,
2.8mm─3.8mm, 3.0mm─4.0, Diameter of outer cylinder flange 1b is 8mm or more. When the diameter of the round wire of the anchor 4 is 1.2 mm, the inner diameter of the outer cylinder 1─the outer diameter is 3.2 mm─4.2 mm,
4.5mm─5.5mm, diameter of outer cylinder flange 1b is 1
0 mm or more.

In the above, the case where the exterior material A such as a roof tile or a wooden board is fixed to the surface of the lightweight cellular concrete base material B with the nail of the present invention will be described with reference to FIGS. When hitting the head 2b of the shaft 2 with a hammer, the outer cylinder 1
Since the shaft 2 and the shaft 2 have a frictional force due to the elastic restoring force between the outer cylinder 1 and the anchor member 4, they are integrated and the outer cylinder 1 is driven into the flange 1b and stopped.

[0013] With the subsequent impact, the adhesion of the adhesive 3 is released, and the shaft head 2 b is driven into the surface of the flange 1 b of the outer cylinder 1 via the washer 9. At this time, the anchor member 4 sequentially exits from the hole 1c of the outer cylinder in the axial direction and enters the inside of the base material B.

Here, a positioning recess 2 is provided on the lower end surface of the shaft 2.
Since there is d, the shaft 2 and the anchor member 4 are held so that their axes are substantially aligned, and the anchor member 4 smoothly comes out of the outer cylinder. Further, since the hole 1c is a long hole, strict accuracy is not required for positioning of the distal end portion of the anchor member 4 with respect to the hole. Moreover, the direction is guided in the length direction of the hole 1c,
In some cases, the anchor member 4 goes out of the outer cylinder, and in this case, the anchor member 4 has a balanced posture in the portion that has come out of the outer cylinder. This provides an anchor against the pulling force of the nail.

Here, the adhesive 3 is removed when the shaft 2 comes out of the outer cylinder 1 during handling or when a force in the opposite direction acts on the shaft 2 due to the elastic restoring force of the anchor member 4 during driving of the shaft 2. Resist this.

FIG. 5 shows another embodiment. The upper side of the hole 1c of the outer cylinder is cut out and bent inward to form a guide piece 1e, on which the lower end of the anchor member 4 is supported.

FIG. 6 shows another embodiment. A cylindrical guide member 5 is interposed between the pointed portion 1d and the hole 1c inside the lower portion of the outer cylinder 1. The upper end of the guide member 5 has a flat surface that is substantially perpendicular to the axial direction of the outer cylinder 1. In this case, as shown in FIG. 6, the lower lower surface of the anchor member 4 receives a reaction force from the upper surface of the guide member 5 and is strongly pressed against the corner 5 a of the upper peripheral edge of the guide member 5, and the distal end of the anchor member 4 Bends upward. By the subsequent hammering, the upper surface of the portion where the anchor member 4 passes through the outer cylinder hole 1c is also strongly pressed against the corner 1f of the outer cylinder hole 1c. As a result, the anchor member comes out of the outer cylinder while being strongly sandwiched between the upper and lower surfaces in a portion passing through the outer cylinder hole 1c, so that the anchor member is "struck", and is bent upward in a substantially circular arc. I will do it.

FIG. 7 shows still another embodiment. The lower end of the guide member 5 is a pointed part, and is replaced with the outer cylinder pointed part 1d. That is, the guide member 51 is the cylindrical body 1 of the outer cylinder 1.
a downwardly-pointed peak 51 at the lower end of a cylindrical portion 51a concentric with a.
b is integrally formed, and the upper end is a flat surface. A circumferential groove 51c is provided on the outer periphery of the cylindrical portion 51a, and a bent piece 1g at the lower end of the outer cylinder 1 is fitted into the circumferential groove 51c by caulking.

As the anchor member, a usual nail material is used. Also, if you use spring materials such as stainless steel,
Since it is rich in elasticity, even if the positional relationship between the outer cylinder 1 and the anchor member shifts due to an earthquake or the like, it returns to the original state, and the fixing strength is strong.

FIG. 16 shows another embodiment of the shaft. The shaft does not have a head, and a sealing material layer 8 is applied on the upper portion of the shaft. In this case, after the shaft 2 is driven into the outer cylinder 1, the sealing material layer 8
Stops rainwater from entering. Also, the lower part of the shaft 2 and the anchor member 4
A sealant is applied over the top of the. Other outer cylinder 1
As a waterproofing means inside, a rotating round die is pressed from the outside of the rotating outer cylinder 1 to form a circumferential ridge for sealing on the inner periphery of the outer cylinder. Alternatively, as shown in FIG. 15, the ring packing 9 is interposed.

The present invention can be applied to a very wide range of uses as a fixture for other members such as nails, drawing tacks, tatami tacks, and the like.
In addition, the material of the member to be driven is applied to wood wool cement board, wood, tatami, etc. in addition to the above.

[0022]

Reference Example In FIGS. 1, 2 and 3, a spacer cylinder 6 is interposed between the outer cylinder flange 1b and the shaft head 2b instead of the frictional force of the anchor member 4 on the outer cylinder 1. The spacer tube 6 is made of a plastic (synthetic resin) cylinder, and is thinner (thin portion 6b) on one side with respect to the axial direction than on the other portion (thick portion 6a). In addition, an inclined surface 6c is provided at an end face on the shaft head side of the one side portion (the thin portion 6b) so that the upper surface of the thin portion 6b is lowered. At the boundary between the shaft main body 2a and the head 2b, a tapered surface 2c extending toward the head side is formed.

A washer 10 is interposed at the boundary between the spacer 6 and the cylinder main body 1a.

When the head 2b of the shaft 2 is hit and driven with a hammer, the outer tube 1 is driven into the flange 1b and stopped because the spacer tubes 6 are integrated because of the presence of the spacer tubes 6. Subsequently, when the outer cylinder 1 is hit, the movement of the outer cylinder 1 is stopped because of the flange 1b, so that the outer cylinder 1 is compressed by the head 2b of the shaft 2 and is inclined by the inclined surface 6c of the spacer cylinder 6 and the tapered surface 2c of the shaft 2. A component force in the radial direction toward the thick portion 6a is generated at the upper portion of the spacer cylinder 6 with the boundary as a boundary. Therefore, as shown by the phantom line, the spacer cylinder 6 is inclined from the upper portion in the radial direction with respect to the shaft 2, and the thin portion 6 b is strongly pressed by the shaft 2, and comes off the shaft 2. When the shaft is driven, the spacer cylinder is gently separated in almost one direction without being scattered vigorously. At this time, the washer 9 prevents the lower part of the spacer cylinder 6 from biting between the shaft and the outer cylinder.

As shown in FIG. 4, the adhesive 3 is released by the subsequent impact, and the shaft head 2b is driven through the washer 9 to the surface of the flange 1b of the outer cylinder 1. At this time, the anchor member 4 sequentially exits from the hole 1c of the outer cylinder in the axial direction and enters the inside of the base material B. Further, since the spacer cylinder 6 is provided, the shaft 2 does not advance in the outer cylinder until the outer cylinder 1 is completely driven. For this reason, the anchor member 4 protrudes from the outer cylinder only after the impact of the outer cylinder 1 is completed, and does not cause inconvenience to break around the driving layer.

As shown in FIG. 8, the lower half of the outer cylinder 1 is formed so as to have a plurality of ridges and valleys along the axial direction, so that the fixing force increases. In this case, if the anchor members 4 are interposed between the opposed ridges and the holes 1c are provided in these portions, the positioning of the anchor members 4 with respect to the holes 1c becomes easy and reliable. Also, in this case, the outer diameter of the shaft 2 is made slightly thicker,
When the "interference" is generated, the adhesive 3
Can be omitted. Also, as shown in FIG. 9, when the shaft section of the lower half portion of the outer cylinder 1 is rectangular (square), the adhesive 3 can be omitted by increasing the thickness of the shaft 2 to form a tightening margin.

The anchor member 4 is replaced with the anchor member shown in FIGS.
As shown in FIG. 1, a l-shaped (lowercase alphabet) lower end wire is bent outward.
As shown in 2, 13, a strip thin plate piece cut along the length direction from the lower side to the upper side and bent in the shape of a human character (or a letter) is applied. Also, a J-shaped wire (not shown) may be used, and this may come out of one hole of the outer cylinder. The anchor member 4 is formed integrally with the shaft 2, or is fixed separately by an adhesive or welding.

If a plurality of grooves 6d (imaginary lines in FIG. 1) are provided along the axial direction on the outer periphery of the spacer tube 6 instead of or together with the above, this portion is also broken.

If the spacer 6 is not provided and the frictional force of the anchor member 4 against the outer cylinder 1 is not sufficient or is zero,
The adhesive force of the adhesive 3 is increased. This allows
Until the outer cylinder 1 is driven into the flange 1b, the shaft 2
Then, the adhesive 3 is released and the shaft 2 is driven into the outer cylinder 1. FIG.
Instead of the adhesive 3, a plurality of protrusions 3 are provided on the outer periphery of the cylindrical main body 2a at equal intervals in the circumferential direction, and this serves as a "tightening margin" with the inner surface of the outer cylinder 1. Until the outer cylinder 1 is driven, both are integrated. Instead of the convex part 3, an axial ridge is arranged in the circumferential direction, or a circumferential ridge is provided. In addition, these projections or ridges are pressed (or hit) from the outside of the outer cylinder 1 (or press a rotating circular die against the rotating outer cylinder in the same manner as described above), and protrude inside the outer cylinder 1. It may be molded. Alternatively, as shown in FIG. 15, a circumferential groove 2c is provided on the outer circumference of the shaft 2,
The ring packing 9 may be fitted into this. These modifications are applied even if the spacer cylinder 6 is provided, but the adhesive force between the outer cylinder and the shaft is determined to be small enough that the shaft does not come off.

The present invention is not limited to the examples and embodiments described above, but includes various modifications without departing from the spirit and scope of the claims.

[0031]

According to the configuration of the present invention, since the rod-shaped anchor member protrudes from the side of the outer cylinder near the distal end in the length direction from the distal end of the rod, the anchor member smoothly enters without destroying the layer. I do. Therefore, the stability of the base of the fixture is also good.
In addition, since the tip of the fixing tool can be formed into a pointed shape, it is easy to drive and does not inadvertently break the layer. In addition, since the thickness is determined by the outer cylinder and the shaft or the outer cylinder and the anchor member, it can be made thinner than the conventional one, it is easy to drive, and it is easy to waterproof around the driven nail. In addition, by selecting the thickness, material strength and length of the anchor member, the pull-out strength can be freely designed. Also, the shaft does not advance in the outer cylinder until the outer cylinder is almost completely driven. Therefore, it is possible to prevent the anchor member from protruding from the outer cylinder after the outer cylinder is almost completely driven, and to inconveniencely break the periphery of the driving layer as much as possible.

[Brief description of the drawings]

FIG. 1 is a front view of a reference example of the present invention.

FIG. 2 is a longitudinal sectional view of FIG.

FIG. 3 is an end view taken along line XX of FIG. 1;

FIG. 4 is a sectional view in use of a reference example.

FIG. 5 is a second embodiment of the lower portion of the outer cylinder.

FIG. 6 is a third embodiment of the lower portion of the outer cylinder.

FIG. 7 is a fourth embodiment of the lower portion of the outer cylinder.

FIG. 8 is another reference example of the outer cylinder.

FIG. 9 is another reference example of the outer cylinder.

FIG. 10 is a front view of a second reference example of the anchor member.

FIG. 11 is a left side view of FIG.

FIG. 12 is a front view of a third reference example of the anchor member.

FIG. 13 is a right side view of FIG.

FIG. 14 is another reference example of the temporary fixing portion between the outer cylinder and the shaft.

FIG. 15 is a view showing another embodiment of the temporary fixing portion between the outer cylinder and the shaft.

FIG. 16 is another embodiment of the upper part of the shaft.

FIG. 17 is a longitudinal sectional view of one embodiment of the present invention.

FIG. 18 is a front view of one embodiment of the present invention.

FIG. 19 is a sectional view illustrating a use state of an embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List A exterior material B base material 1 outer cylinder 1a cylinder body 1b flange 1c hole 1d apex 2 axis 2a body 2b head 2e circumferential ridge for sealing 3 adhesive 4 anchor member 4a end 5 guide member 6 spacer cylinder 8 sealing material layer

Claims (1)

(57) [Claims] 1. An outer cylinder having a flange at one end of a cylinder body and a hole near the other end, a cusp formed integrally with the other end of the outer cylinder or fixed separately, and one end of the outer cylinder A shaft inserted between the shaft and the other end of the shaft and the apex, or formed integrally with or fixed to the shaft and fixed separately from the shaft, the other end of which has a rod-like shape facing the hole of the outer cylinder. An anchor member, wherein the wire is bent in an inverted U-shape, and when the shaft is hit, the anchor until the outer cylinder flange reaches the object to be fixed or immediately before reaching. A member fixing tool, wherein the anchor member is pressed against the inner wall of the outer cylinder by its elastic restoring force so as to generate a frictional force that does not cause the member to come out of the outer cylinder hole.