JPH08296619A - Engaging tool - Google Patents

Abstract

PURPOSE: To prevent a striking layer from breaking unduly at the time of striking. CONSTITUTION: A tool is provided with an outer cylinder 1 having a hole in the vicinity of one end of a cylinder main body, a flange 1b with an outer screw which is fixed on one end of the outer cylinder 1, a spine part which is integratedly bending formed on the other end of the outer cylinder 1 or which is fixed independently, a shaft 2 which is inserted from one end of the outer cylinder 1 and which has a head on one end, a rod shaped rivet member 4 which is interposed between the other end of the shaft 2 and the spine part, which is formed integratedly with the shaft 2, or which is fixed independently, and whose the other end is faced to the hole of the outer cylinder 1, a spacer which is detachably interposed between the outer cylinder flange and a shaft head, and a cap 20 with an inner screw which is screwing fit to a flange.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engagement tool used as a furniture collapse prevention tool or a hanging tool.

[0002]

2. Description of the Related Art As an example of the prior art, the actual development of Sho 62-
There is one disclosed in Japanese Patent Publication No. 196914. In this technique, the leg portion of the nail is divided into a pair of leg pieces along the axial direction, and a thin strip plate which is easily bent is sandwiched between the leg pieces. Then, as the nail was driven into the aerated concrete, the concrete layer entered between the leg pieces from the bottom of the leg pieces,
The strip plate is folded upward in a zigzag shape, and the two leg pieces open in an eight-shape to form an anchor.

[0003]

However, in the above-mentioned technique, since the legs of the nail open in an eight-shape at the same time when the nail is driven in, the nail is undesirably destroyed and a cavity is formed.
The pullout resistance is weak. Therefore, even if an L-shaped metal fitting or the like is attached to a wall by this fixing tool and is joined to furniture to prevent the furniture from collapsing, it is not satisfactory.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide an engaging tool which does not disadvantageously destroy the driving layer when driving.

[0005]

In order to solve the above problems, the structure of the present invention is as follows. That is, the first configuration is that the outer cylinder having a hole near the other end of the cylinder body, the outer threaded flange fixed to one end of the outer cylinder, and the other end of the outer cylinder integrally bent or fixed separately. A pointed portion, a shaft that is inserted from one end of the outer cylinder and has a head at one end, and is interposed between the other end of the shaft and the pointed portion, or formed integrally with the shaft, or separately. A rod-shaped anchor member fixed to the body and the other end of which faces the hole of the outer cylinder, a detachable spacer interposed between the outer cylinder flange and the shaft head, and an internal screw threaded to the flange. With a cap.

The second structure is that the outer cylinder having a hole near the other end of the cylinder body, the outer threaded flange fixed to one end of the outer cylinder, and the other end of the outer cylinder integrally bent or formed separately. The fixed point, the shaft inserted from one end of the outer cylinder, and the shaft inserted between the other end of the shaft and the point, formed integrally with the shaft, or fixed separately. , A rod-shaped anchor member having the other end facing the hole of the outer cylinder, and an inner threaded cap screwed to the flange. The anchor member is formed by bending a wire into an inverted U shape, and the shaft is When hit, until the outer cylinder flange reaches the object to be fixed, or just before reaching, the anchor member generates elastic force so that the anchor member generates a frictional force that does not come out of the outer cylinder hole. Is brought into pressure contact with the inner wall of the outer cylinder.

In the third structure, an outer cylinder having a hole near the other end of the cylinder body, an outer threaded flange fixed to one end of the outer cylinder, and an integrally bent or separate body at the other end of the outer cylinder. The fixed point, the shaft inserted from one end of the outer cylinder, and the shaft inserted between the other end of the shaft and the point, formed integrally with the shaft, or fixed separately. , Including a rod-shaped anchor member having the other end facing the hole of the outer cylinder and an inner threaded cap screwed into the flange, until the outer cylinder flange reaches a fixed object when the shaft is hit. Or just before reaching, a convex portion is provided on the shaft or the inner surface of the outer cylinder so as to generate a frictional force to the extent that the anchor member does not come out of the outer cylinder hole.

According to a fourth structure, an outer cylinder is thinned in the vicinity of the other end of the cylinder body from other portions, an outer threaded flange fixed to one end of the outer cylinder, and integrally bent at the other end of the outer cylinder. A pointed portion formed or fixed separately, a shaft that is inserted from one end of the outer cylinder and has a head at one end, and is interposed between the other end of the shaft and the pointed portion, or integrally with the shaft. A rod-shaped anchor member formed or fixed separately and having the other end facing the thin portion of the outer cylinder; a detachable spacer interposed between the outer cylinder flange and the shaft head; And a cap with an internal thread that fits over the flange.

According to a fifth structure, an outer cylinder is thinned in the vicinity of the other end of the cylinder body from other portions, an outer threaded flange fixed to one end of the outer cylinder, and integrally bent at the other end of the outer cylinder. A pointed portion formed or fixed separately, a shaft inserted from one end of the outer cylinder, interposed between the other end of the shaft and the pointed portion, or formed integrally with the shaft, or separately The anchor member includes a rod-shaped anchor member fixed to the body and the other end of which faces the thin portion of the outer cylinder, and an inner threaded cap screwed to the flange. The anchor member has a wire bent in an inverted U shape. When the shaft is hit, until the outer cylinder flange reaches the fixed object, or until just before, the anchor member generates a frictional force that does not penetrate through the outer cylinder thin portion, That is, the anchor member is pressed into contact with the inner wall of the outer cylinder by its elastic restoring force.

According to a sixth structure, an outer cylinder having the other end of the cylinder main body made thinner than the other portion, an outer threaded flange fixed to one end of the outer cylinder, and an integral bend at the other end of the outer cylinder. A pointed portion formed or fixed separately, a shaft inserted from one end of the outer cylinder, interposed between the other end of the shaft and the pointed portion, or formed integrally with the shaft, or separately It includes a rod-shaped anchor member fixed to the body and the other end of which faces the thin portion of the outer cylinder, and a cap with an internal thread that screws into the flange, and when the shaft is hit, the outer flange is fixed. A convex portion is provided on the shaft or the inner surface of the outer cylinder so that the anchor member generates a frictional force that does not break through the thin portion of the outer cylinder until the object is reached or just before the object is reached.

The seventh structure is that, in addition to any one of the first to sixth structures, a connection hole or a connection hook such as a wire is provided on the outer surface of the cap.

[0012]

[Operation] When you hit the head of the shaft with a hammer and drive it in,
The outer cylinder and the shaft are integrated, and the outer cylinder is driven up to the flange and stopped. When subsequently hit, the shaft head is driven to the surface of the flange of the outer cylinder. At this time, the anchor member breaks through the outer cylinder and penetrates into the base material. This will be an anchor against the pulling force.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to an embodiment (furniture collapse prevention fitting) shown in the drawings. Figure 1,
In 2 and 3, the outer cylinder 1 has a concentric outer threaded flange 1b fixed to the upper end of a steel cylindrical body 1a, and the lower end bent to form a pointed portion 1d. A cylindrical guide member 5 is interposed between the pointed portion 1d and the end portion of the outer cylinder 1. That is, in the guide member 5, a downwardly-pointed peak portion 5b (point portion 1d) is integrally formed at the lower end of a cylindrical portion 5a that is concentric with the cylindrical body 1a of the outer cylinder 1, and an upwardly-pointed peak portion 5c is integrally formed at the upper end. Also, the column portion 5a
5d from the upper peripheral edge of the cylinder (thickness smaller than the outer cylinder 1)
Overhangs. These parts 5a, 5b, 5c and 5d are integrally formed by a press die. Then, the thin cylindrical portion 5d is fitted onto the narrowed portion 1n at the lower end of the outer cylinder 1 and seam welded.

The cylindrical main 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, and at the boundary between the main shaft 2a and the head 2b, it is located on the head side. A widening taper surface 2c is formed. A positioning recess 2d is formed on the lower end surface of the shaft 2. Then, an adhesive (or pressure-sensitive adhesive) 3 is applied to the outer periphery of the columnar body 2a, and the shaft 2 is prevented from coming off by adhesion or friction with the inner surface of the cylindrical body 1a of the outer cylinder 1.

Further, a plurality of circumferential projections 2e for sealing are formed on the outer circumference of the shaft by rolling. A rotating circular die is pressed against the rotating shaft, and the circumferential ridges 2e are raised by plastic deformation (height: about 0.1 to 0.2 mm). Approximate size makes it easy to fit the outer cylinder 1, has a waterproof effect, and does not hinder the driving of the shaft 2.

The rod-shaped anchor member 4 is interposed between the lower end of the shaft 2 and the guide member 5 above the pointed portion 1d, and the lower end faces the thin portion 5d of the outer cylinder 1. The anchor member 4 is made of a round wire made of steel, is bent in an inverted U shape, and both ends 4a of the wire are on the lower side, and both ends 4a are bent to the outside of the outer cylinder 1.

The spacer cylinder 6 includes an outer cylinder flange 1b and a shaft head 2.
It is interposed between b and. The spacer cylinder 6 is made of a plastic (synthetic resin) cylinder, and is thinner (thin-walled portion 6a) than the other portion (thick-walled portion 6a) on one side with the axial direction as a boundary.
Has been done. An inclined surface 6c is provided at the shaft head side end surface of the one side portion (thin portion 6b) so that the upper surface of the thin portion 6b is lowered.

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

The flange 1b has a cap 2 with an internal thread.
0 is screwed together. A locking hole 20a (or a hook 20b) such as a wire is provided at the tip of the cap 20. A washer 23 is interposed between the cap and the wall.

In the above, the case where the engaging member of the present invention is fixed to the wall (consisting of the surface plate A and the lightweight cellular concrete base material B) will be described with reference to FIG. When the head 2b of the shaft 2 is hammered and driven in with a hammer, the outer cylinder 1 and the shaft 2 have the spacer cylinder 6, so that they are integrated and driven to the flange 1b of the outer cylinder 1 and stopped.

When subsequently hit, the outer cylinder 1 is flanged 1b.
Since the movement of the spacer 2 is stopped by the head 2b of the shaft 2, it is compressed by the head 2b of the shaft 2, and the inclined surface 6c of the spacer cylinder 6 and the tapered surface 2c of the shaft 2 cause the radius toward the thick portion 6a side with respect to the axis. A directional component force is generated at the upper part of the spacer cylinder 6. For this reason, the spacer cylinder 6 inclines from the upper portion in the radial direction from the upper portion, as shown in phantom, and the thin portion 6b is strongly pressed by the shaft 2 and is broken from the shaft 2. When the shaft is driven, the spacer cylinder is gently separated in almost one direction without vigorously scattering around. At this time, the washer 9
Prevents the lower part of the spacer cylinder 6 from being caught between the shaft and the outer cylinder.

By the subsequent impact, the adhesion of the adhesive 3 is released, 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 pierces through the thin portion 5d of the outer cylinder in the axial direction, and enters the inside of the base material B.

Here, the positioning recess 2 is formed 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 with each other, and the anchor member 4 smoothly exits from the outer cylinder. This provides an anchor against the pulling force of the nail.
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. Therefore, the anchor member 4 projects from the outer cylinder only after the outer cylinder 1 is hit, and the periphery of the driving layer is not undesirably destroyed.

Next, as shown in FIG. 16, the cap 20 is screwed onto the outer screw of the outer cylinder flange 1b and screwed to the surface of the wall. A telescopic wire (wire) 22 is connected between the wood screw 21 with a locking hole screwed into the upper surface of furniture (such as a closet) and the locking hole 20a of the cap 20. The wire 22 has elasticity by connecting a coil spring 22b in the middle of the wire 22a, for example. This can prevent the furniture from collapsing in the event of an earthquake. At this time, the shock acting on the furniture is absorbed by the stretchable wire 22, so that the cutting of the wire and the dropping of the engaging tool can be prevented.

Here, when the inside of the wall is hollow, as shown by the phantom line in FIG. 4, the once driven outer cylinder 1 is pulled out, and the protruding anchor member 4 is strongly pressed against the inner surface of the base material B. Let That is, when the cap 20 is screwed into the flange 1b of the driven outer cylinder 1 and then the cap 20 is pulled (or a nail puller is put under the flange 1b), the outer cylinder 1 is pulled out, and the anchor member 4 is the inner surface of the base material B. It is pressed against and stopped. After that, when the cap 20 is rotated, the outer cylinder 1 is further pulled out together with the flange 1b as shown in FIG. 4, and in the end, the surface plate A and the base material B are strongly sandwiched between the cap 20 and the anchor member 4. Will be done.

In FIG. 17, the coil spring 22 (FIG. 16) is covered with a heat-shrinkable plastic tube 24 to enhance the cushioning ability. That is, the soft polyvinyl chloride type contraction tube covers the entire tension coil spring 22 with no load. And it is made to shrink by blowing the air heated at 60 to 120 degreeC. This allows
The tube 24 enters the gap between the coil springs 22 and both ends are reduced in diameter.

Therefore, in the event of an earthquake or the like, the coil spring 22 that has expanded due to the initial vibration has a large gap, and the tube 24 is interposed in this gap. Therefore, when the coil spring 22 contracts, the tube 24 acts as a buffer. In this way, the vibration damping capacity is greatly improved and the cost is low. Vibration cannot be easily damped by conventional springs.

Here, the tube 24 may partially cover not the entire coil spring 22. When the compression coil spring is interposed between the wall and the back surface of the furniture, as shown in FIG.
The tube 24 is covered. FIG. 19 shows a case where the flat corrugated coil spring 22b is used in a narrow space, and the tube 24 is covered in the same manner as described above.

The tube may be made of a plastic material such as rubber instead of the plastic.

20 and 21 show an embodiment in the case of being used as a furniture collapse prevention tool between a wall and furniture. A wall metal fitting 25 is attached by the anchor-shaped fixing member, a tension coil spring 22 covered with a tube 24 is locked to the wall metal fitting 25, and a hemp belt 21 'is connected to the tip of the wall metal fitting 25. It is fixed on the upper surface of F. Here, in the wall fitting 25, a hook 25b is integrally bent downward from the upper edge of the horizontally long flat plate 25a, and the coil spring 22 is connected to this hook. Holes 2 near the left and right edges of the plate
5c is provided, and through this hole, the anchor-shaped fixture shown in FIGS. 11 and 14 (without the spacer 6) is driven and fixed.

Next, the usage state when used as a furniture collapse prevention tool will be described. First, the hook 25b of the wall fitting 25
Facing downwards and away from the top edge of furniture F by 2 cm or more,
The outer cylinder 1 with the inserted state is inserted into the hole 25c of the wall fitting 25, and the shaft 2 is hammered to hammer the outer cylinder 1 into the wall. At this time, the anchor member 4 goes out of the outer cylinder 1 to become an anchor, and the wall fitting 25 is fixed. Similarly, drive in the second anchor-shaped fixture.

Next, the belt 21 'is attached to the hook 25b of the wall fitting.
, And pulling it, set the metal fitting 26 at any position on the top surface of the furniture, hold the belt and set screw 2
Stop at 7. Cut off the excess belt with scissors and see Fig. 21.
Installation is completed as shown in.

As described above, the present invention also includes the following. (1) A spring shock absorber including a coil spring and a plastic tube covered with the outer periphery thereof. (2) Furniture including a coil spring, a plastic tube covering the outer periphery of the coil spring, and an article fixing tool directly or indirectly connected to one end or both ends of the coil spring through a string-shaped body, a belt body or the like. , Preventive devices for electric appliances, gas appliances, etc.

In place of the cap, a short cylindrical body with a female screw (for example, a hexagonal nut or the like) (in short, it may be a female screw member) is used, and a hook or another member separate from the cap and the wall is used. You may fix it.

The hole of the outer cylinder 1 through which the anchor member 4 pierces may be provided in the outer cylinder in advance. In this case, the cylindrical thin portion 5d is omitted.

Here, when the shaft 2 comes out of the outer cylinder 1 during handling of the adhesive 3 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 the driving of the shaft 2, Resist this.

Further, as shown in FIG. 5, the lower half portion of the outer cylinder 1 is formed so as to have a plurality of ridges and valleys along the axial direction, and the fixing force is increased. In this case, the anchor member 4 is interposed between the convex strips facing each other. Further, in this case, the adhesive 3 can be omitted by slightly increasing the outer diameter of the shaft 2 to generate a "tightening margin". Also, as shown in FIG.
Even when the axial cross section of the lower half of the outer cylinder 1 is rectangular (square), the adhesive 3 can be omitted by increasing the thickness of the shaft 2 to make a tight margin.

Instead of the anchor member 4, as shown in FIGS. 7 and 8, the anchor member 4 has a l (alphabet writing small letter) wire having both ends bent outward, or FIGS.
As described above, a strip thin plate piece is cut along the length direction from the lower side to the front side and bent into a human-character shape (or a letter-shaped shape). Also, J-shaped wire (not shown)
May be used and this may emerge from one hole in the barrel. The anchor member 4 is formed integrally with the shaft 2 or is separately secured by an adhesive, welding, or the like.

A usual material for nails is used as the anchor member. Also, if you use spring material such as stainless spring 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, and the anchor member 4 is elastically restored when the shaft 2 is pulled out after driving. The force returns to the inside of the outer cylinder 1, and then the outer cylinder 1 can be pulled out. (The anchor member is made of normal nail material instead of spring steel, and returns somewhat to the inside of the outer cylinder when the shaft is pulled out, and when the outer cylinder is pulled out, the anchor member may be deformed and pulled out).

The thin portion 5d may be formed separately from the guide member 5, and may be welded. Further, the end portion of the outer cylinder 1 may be thinned and integrated with the outer cylinder 1. Alternatively, the thin portion is not provided, the end portion of the outer cylinder has the same thickness as other portions (for example, 0.3 mm, 0.4 mm, etc.), the hardness of the anchor member,
If the tip sharpness is appropriately selected, the anchor member 4 pierces through the outer cylinder.

Alternatively, or in addition to the above, if a plurality of grooves 6d (imaginary line in FIG. 1) along the axial direction are provided on the outer circumference of the spacer cylinder 6, this portion will also be destroyed.

As shown in FIG. 14, when the spacer cylinder 6 is not provided, the anchor member 4 has a wire bent in an inverted U shape, and when the shaft 2 is hit, the outer cylinder flange 1b.
The anchor member is elastically restored by the elastic restoring force so that the anchor member 4 generates a frictional force to the extent that the anchor member 4 does not pierce the thin portion 5d of the outer cylinder 1 until the anchor reaches the object to be fixed or just before reaching. It is in pressure contact with the inner wall of the cylinder 1. Here, as an experimental example (example), an example of dimensions when a wood plate is fixed to the surface of the lightweight cellular concrete base material B and a particle board is fixed is shown. When the diameter of the round wire of the anchor 4 is 1.1 mm, the inner diameter of the outer cylinder 1-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 Thickness of thin part 5d is 0.3mm, 0.4mm Diameter of round wire of anchor 4 1.2mm In the case of the outer cylinder 1, the inner diameter-outer diameter is 3.2 mm-4.2 mm,
4.5 mm-5.5 mm The diameter of the outer cylinder flange 1b is 10 mm or more, and the thickness of the thin portion 5d is 0.3 mm and 0.4 mm.

When the spacer 6 is not provided and the frictional force of the anchor member 4 to the outer cylinder 1 is not sufficient, the adhesive force of the adhesive 3 is increased. As a result, until the outer cylinder 1 is driven up to the flange 1b, the outer cylinder 1 is driven integrally with the shaft 2, after which the adhesive 3 is released from the fixation, and the shaft 2 is driven into the outer cylinder 1.

Further, instead of the adhesive 3 as shown in FIG.
A plurality of convex portions 3a are provided on the outer circumference of the columnar 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 in. Both are united. Instead of the convex portion 3a, the axial convex stripes 3b are arranged in the circumferential direction, or a circumferential convex stripe is provided. Further, these convex portions 3c or ridges are pressed (or hit) from the outside of the outer cylinder 1 (or the rotating circular die is pressed against the outer cylinder rotating in the same manner as described above), and the outer cylinder 1
It may be formed by projecting inside.

Alternatively, as shown in FIG. 12, a circumferential groove 2c may be provided on the outer circumference of the shaft 2 and the ring packing 9 may be fitted therein. These modifications are applied even if the spacer cylinder 6 is provided, but the adhesive force between the outer cylinder and the shaft is set to a small value so that the shaft does not come out.

FIG. 13 shows another embodiment of the shaft. The shaft does not have a head, and the sealing material layer 8 is applied to the upper part of the shaft. In this case, after driving the shaft 2 into the outer cylinder 1, the sealing material layer 8
Prevent rainwater from entering. Also, the lower part of the shaft 2 and the anchor member 4
Apply the sealant over the top of the. Other, outer cylinder 1
As a waterproofing means for the inside, a rotary round die is pressed from the outside of the rotating outer cylinder 1 to form a circumferential ridge for sealing on the inner circumference of the outer cylinder. Alternatively, as shown in FIG. 12, the ring packing 9 is interposed.

FIG. 15 shows another embodiment of the guide member 5.
That is, the columnar protrusion 5e is provided on the top of the pointed peak 5c.
Are concentrically provided on the cylindrical portion 5a. Then, with the columnar projection 5e sandwiched, it and the anchor member 4 are simultaneously inserted from the other end of the outer cylinder 1. As a result, the anchor member 4 spreads outward in the radial direction of the outer cylinder 1 and easily comes out of the outer cylinder 1.
For this reason, even when the bending-formed anchor member is used from the state in which the wire is cut in the cross section perpendicular to the axial direction, the outer cylinder 1
It becomes easier to get out of. Therefore, the step of inclining (sharply sharpening) the end surface of the anchor member in the axial direction can be omitted, and the cost can be reduced accordingly.

The engagement tool of the present invention is applied to an extremely wide range of applications as furniture fall prevention, wall mounting hooks, and other anchor tools. Further, as the material of the driven member, in addition to the above, it is applied to wood wool cement plate, wood, folding, metal plate and the like.

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.

[0050]

According to the structure of the present invention, since the rod-shaped anchor member projects in the length direction from the tip of the rod from the side surface near the tip of the outer cylinder, the anchor member smoothly penetrates without breaking the layer. To 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 the layer is not broken undesirably. Moreover, since the thickness is determined by the outer cylinder and the shaft or the outer cylinder and the anchor member, the thickness can be made thinner than the conventional one, and it is easy to drive and the waterproof around the driven nail is also easy. Moreover, the pull-out proof strength can be freely designed by selecting the thickness, material strength and length of the anchor member.

If a wire or the like is connected to the cap, the furniture or the like can be prevented from collapsing in the event of an earthquake, and the product can be used as an extremely stable engaging tool by suspending the product or mounting the product itself. it can.

Furthermore, since the outer cylinder thin-walled portions of the fourth, fifth, and sixth configurations do not preliminarily form a hole near the other end of the outer cylinder,
Since it is not necessary to position the anchor member in the circumferential direction of the outer cylinder, it does not take much time to manufacture.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of FIG.

FIG. 3 is an end view taken along the line III-III in FIG.

FIG. 4 is a sectional view showing a state of use.

FIG. 5 is another embodiment of the outer cylinder.

FIG. 6 is another embodiment of the outer cylinder.

FIG. 7 is a front view of a second embodiment of the anchor member.

FIG. 8 is a left side view of FIG.

FIG. 9 is a front view of a third embodiment of the anchor member.

FIG. 10 is a right side view of FIG.

FIG. 11 is a view showing another embodiment of a temporary fixing portion between the outer cylinder and the shaft.

FIG. 12 is a view showing another embodiment of a temporary fixing portion between the outer cylinder and the shaft.

FIG. 13 is another embodiment of the upper part of the shaft.

FIG. 14 is a vertical sectional view of another embodiment of the present invention.

FIG. 15 is a sectional view of another embodiment of the lower portion of the outer cylinder.

FIG. 16 is a view showing a state in which the furniture collapse prevention tool is used.

FIG. 17 is a front view of the tension spring cushioning tool.

FIG. 18 is a front view of the compression spring shock absorber.

FIG. 19 is a front view of the wave spring shock absorber.

FIG. 20 is an exploded perspective view of a furniture collapse prevention tool.

FIG. 21 is a perspective view of a furniture falling prevention tool in a used state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Outer cylinder 1a ... Main body 1b ... Flange 1d ... Point 2 ... Shaft 2 ... Main body 2b ... Head 3 ... Adhesive 4 ... Anchor member 5 ... Guide member 6 ... Spacer cylinder 20 ... Cap 21 ... Wire 22 ... Coil spring 23 ... Washer

Claims (7)

[Claims] 1. An outer cylinder having a hole in the vicinity of the other end of the cylinder body, an outer threaded flange fixed to one end of the outer cylinder, and integrally bend-formed or separately fixed to the other end of the outer cylinder. A pointed portion, a shaft that is inserted from one end of the outer cylinder and has a head at one end, and is interposed between the other end of the shaft and the pointed portion, or formed integrally with the shaft, or as a separate body. A rod-shaped anchor member that is fixed and has the other end facing the hole of the outer cylinder, a detachable spacer that is interposed between the outer cylinder flange and the shaft head, and a cap with an internal thread that is screwed to the flange. An engagement tool comprising: 2. An outer cylinder having a hole in the vicinity of the other end of the cylinder body, an outer threaded flange fixed to one end of the outer cylinder, and integrally bent or separately fixed to the other end of the outer cylinder. A pointed portion, a shaft inserted from one end of the outer cylinder, and interposed between the other end of the shaft and the pointed portion, or formed integrally with the shaft, or fixed separately, and the other end Includes a rod-shaped anchor member facing the hole of the outer cylinder, and an inner threaded cap screwed to the flange. The anchor member has a wire bent in an inverted U shape, and the shaft is hit. At this time, until the outer cylinder flange reaches the object to be fixed, or just before the outer cylinder flange reaches the fixed object, the anchor member is elastically restored by the elastic restoring force so that the anchor member generates a frictional force that does not come out of the outer cylinder hole. An engagement tool which is in pressure contact with a cylinder inner wall. 3. An outer cylinder having a hole near the other end of the cylinder main body, a flange with an outer screw fixed to one end of the outer cylinder, and integrally bent or separately fixed to the other end of the outer cylinder. A pointed portion, a shaft inserted from one end of the outer cylinder, and interposed between the other end of the shaft and the pointed portion, or formed integrally with the shaft,
Alternatively, it includes a rod-shaped anchor member that is fixed separately, and the other end of which faces the hole of the outer cylinder, and an internally threaded cap that screws into the flange, and when the shaft is struck, the outer cylinder flange is A convex portion is provided on the shaft or the inner surface of the outer cylinder so that the anchor member generates a frictional force to the extent that the anchor member does not come out of the outer cylinder hole until it reaches the object to be fixed or just before reaching. Engagement tool. 4. An outer cylinder in which the vicinity of the other end of the cylinder body is thinner than the other portion, an outer threaded flange fixed to one end of the outer cylinder, and an integrally bent or separate member formed at the other end of the outer cylinder. A body-fixed cusp, a shaft that is inserted from one end of the outer cylinder and has a head at one end, and is interposed between the other end of the shaft and the cusp, or formed integrally with the shaft, Or fixed separately,
A rod-shaped anchor member having the other end facing the thin portion of the outer cylinder, a detachable spacer interposed between the outer cylinder flange and the shaft head, and an inner threaded cap screwed to the flange. An engagement tool comprising: 5. An outer cylinder in which the vicinity of the other end of the cylinder body is thinner than the other portion, an outer threaded flange fixed to one end of the outer cylinder, and integrally bent or formed separately at the other end of the outer cylinder. Body-fixed cusp, shaft inserted from one end of the outer cylinder, and interposed between the other end of the shaft and the cusp, formed integrally with the shaft, or fixed separately. And a rod-shaped anchor member having the other end facing the thin portion of the outer cylinder, and an internally threaded cap screwed into the flange. The anchor member is formed by bending a wire into an inverted U shape. When the shaft is struck, until the outer cylinder flange reaches the object to be fixed, or until just before, the anchor member generates a frictional force that does not pierce the outer cylinder thin portion, so that the anchor member is An engagement tool, which is pressed against the inner wall of the outer cylinder by the elastic restoring force. 6. An outer cylinder in which the vicinity of the other end of the cylinder body is thinner than the other portion, an outer threaded flange fixed to one end of the outer cylinder, and integrally bent or formed on the other end of the outer cylinder. Body-fixed cusp, shaft inserted from one end of the outer cylinder, and interposed between the other end of the shaft and the cusp, formed integrally with the shaft, or fixed separately. And the other end includes a rod-shaped anchor member facing the outer-wall thin portion, and an internally threaded cap screwed onto the flange, and when the shaft is struck, the outer-flange reaches the fixed object. Until, or just before reaching, the shaft member or the inner surface of the outer cylinder is provided with a projection so that the anchor member generates a frictional force that does not break through the thin portion of the outer cylinder. Ingredient 7. The engagement tool according to claim 1, wherein a connection hole or a connection hook for a wire or the like is provided on the outer surface of the cap.