JPS5846617B2 - Article fixing device - Google Patents

Description

Detailed Description of the Invention The present invention is disclosed in Japanese Patent No. 1078177 (Japanese Patent Publication No. 56-18
An article fixation that is an improvement of the original patented invention that achieves the same purpose as the original patented invention, whose main part is the main part of the structure of the patented invention (referred to as the original patented invention) of Publication No. 736) Regarding equipment.

The main part of the configuration of the original patent invention is an article fixing device for fixing an article to a support structure, particularly a support structure made of lightweight construction material, and a fixing rod, the fixing rod being the above-mentioned fixing rod. A fixing rod that can be inserted into a fixing hole provided in the support structure with a gap left between the fixing hole and the fixing rod, and the fixing rod pass through. a cylindrical or cylindrical insert disposed in the fixing hole in the passageway for fixing the fixing iron in the fixing hole, the cylindrical or cylindrical insert consists of a two-component adhesive consisting of two components that are curable upon reaction in direct contact with each other, at least one component of said two components is encapsulated in microcapsules, and said two components are separated from each other and mixed with each other by the walls of the microcapsules, the two components being joined together via the walls of the microcapsules by a binder, and the walls of the microcapsules being connected to one end of the fixing rond. a cylindrical or cylindrical insert configured to be inserted into the fixing hole and destroyed when the cylindrical or cylindrical insert is squeezed, bringing the two components into direct contact with each other; An article fixing device comprising:

Similar to the original patented invention, the present invention also utilizes microcapsule technology.

This technique is a new physicochemical method for coating minute amounts of liquids and solids, for example by coacervation.

The capsule wall is ruptured by mechanical action, such as pressure, and the contents of the capsule are then freed.

The microcave cells ensure that at least one component of the two-component adhesive does not react with the second component.

That is, it is ensured that the two components, which are separated from each other only by the capsule wall, do not react even though they are well mixed with each other.

Therefore, the two-component adhesive prepared for reaction is always stable without any reaction with the mixed 11 unless the capsule wall is destroyed.

It is only after the capsule wall is destroyed that the two liquid adhesive components come into contact with each other, a reaction of both adhesive components takes place, and the two-component adhesive is cured.

However, when both components of a two-component adhesive react with each other,
Two-component adhesives take a considerable amount of time to cure to a suitable degree of adhesive strength.

Two-component adhesives have almost no adhesion force at least immediately after the components of the two-component adhesive react, and do not function as adhesives until some time has passed, which brings about various inconveniences. be.

For example, when a heavy anchoring rod is inserted into a horizontal hole in a receiving support structure, the anchoring rod immediately sinks downward under its own weight into the liquid two-component adhesive that surrounds it and becomes horizontal. It is located on the hole wall at the bottom of the hole.

In this case, the fixing rod is not evenly fixed around the circumference by the adhesive, and the pull-out resistance of the fixing rod is reduced.

When installing the fixing rod at a high place, the two-component adhesive may not be sufficiently cured, so there is a risk that the fixing rod will fall out of the hole due to its own weight immediately after the fixing rod is installed. Sometimes.

The present invention is intended to improve the above-mentioned problems existing in the original patented invention, and in addition to the structure of the main part of the original patented invention described above, a fixing rod is accommodated in a fixing hole of a support structure. a tightening device for holding the fixing rod in the fixing hole immediately after and before the two-component adhesive has reacted sufficiently to fix the fixing rod in the fixing hole; It is characterized by having the following.

This tightening device is designated by reference numeral 8 in the embodiment described later.
11:14:20:20a:26:3336.38
:39 :39a : The member indicated by 41 corresponds to this.

With the structure of the present invention, it is possible to hold the fixing rod in the hole regardless of the adhesive strength of the two-component adhesive.

The magnitude of the holding force obtained by the tightening device is appropriately selected taking into account the circumstances in which the fixing rod is to be installed.

In many cases, it is sufficient for the clamping device to have a slight holding force, if only to prevent the fixing rod from falling out of the hole, for example when installed at a high location.

However, for example, if a large load is applied to the fixing rod immediately after the fixing rod is attached, the tightening device must be designed to hold the fixing rod with high pull-out resistance.

Furthermore, the interplay between the holding force of the clamping device and the adhesive force of the two-component adhesive makes it possible to fix the fixing rod in the hole with a very high pull-out resistance.

The tightening device of the invention preferably includes one or more elastically deformable parts projecting from the outer surface of the fixing rod.

When the fixing rod is inserted into the hole, the elastically deformable portion is supported by the hole wall and deforms.

Depending on the degree of elasticity of the deformable part, the fixing rod can be provided with different high pull-out resistances.

The above-mentioned tightening device with an elastically deformable part is suitable for fixing immediately after installation, for example, when a fixing rod is installed in a high place, where only a moderate initial pull-out resistance is required. This is particularly suitable for preventing the rod from falling.

Furthermore, the tightening device of the present invention allows for much less resistance in inserting the fixing rod into the hole and in pulling it out than in pairs.

The tightening device is therefore preferably barbed-shaped and tapered at the end in the direction of insertion.

Even if a deformable portion is provided, the deformable portion may be formed along the fixing rod as long as the elastic force of the portion is weak and does not pose a problem in inserting the fixing rod.

If, on the other hand, the elastic force of the deformable part is so strong that it is difficult to insert the fixing rod, the tightening device can also be formed separately from the fixing rod.

The elastic deformable portion is preferably a lip formed along the fixation rod.

Of course, it is also possible to have multiple replies.

The ribs preferably extend longitudinally opposite the hole walls.

It is also possible to extend the ribs in the longitudinal direction of the fixing rod or in a transverse direction.

Furthermore, it is also preferable to have a plurality of riffs intersecting with each other.

It is also suitable to provide knots instead of or in addition to the ribs.

The nodes can project, for example conically, around the outside of the fixing rod opposite the hole wall.

It is also possible for the tightening device to be configured such that when assembled on the fixing rod it expands radially so that the fixing rod can be supported in the fixing hole.

As a result, when the fixing rod is installed in the hole, the fixing rod is supported radially on the hole wall via the clamping device.

This embodiment is capable of providing a much stronger retention of the fixing rod within the bore than in the previously described embodiments.

Another embodiment according to the invention consists of at least two parts, one part of which is supported by another part during assembly.

In a preferred embodiment of the invention, the fixation rod widens conically at its rearward end.

The fixation rod includes a two-component adhesive around the rod.

A cylindrical sleeve insertable into the fixation rod is provided with a longitudinally extending taper and a slit at the front end of the sleeve to disrupt the microcapsules containing the two-component adhesive in whole or in part.

During installation, the conical end of the fixing rod is first inserted into the hole.

The sleeve is then inserted into the fixing rod, and the microcapsule is destroyed by the sleeve crushing the wall of the microcapsule in the narrow gap between the outer wall of the sleeve and the hole wall.

The front end of the sleeve is supported when it abuts the conical portion of the fixation rod.

The force supporting the fixation rod is assisted by a slit in the front end of the sleeve.

If there is a weakened area at the front end of the sleeve, the sleeve wall splits along the front end, which also aids in supporting the fixation rod.

By supporting the fixing rod, the sleeve is also tightly clamped with its front end into the bore.

An improvement in the clamping action can be achieved in that the fixing rod is provided with a covering of expanded metal lath above the layer of microencapsulated two-component adhesive.

The expanded metal lath has a number of protrusions.

When the sleeve is inserted into the fixing rod, the sleeve presses the expanded metal lath against the bore wall, thereby creating an additionally strong clamping effect.

One embodiment of the invention comprises a hollow cylindrical sleeve, preferably filled with a two-component adhesive and closed at one end.

The cylindrical wall of the sleeve includes a number of radially extending eyelets.

Furthermore, the sleeve can be supported at least at one end in the fixing hole.

A short piece can be inserted with one end of the fixing rod into the open end of the sleeve to form a pre-assembled installation.

The fixing rod is formed with a conical enlargement at its rear end.

For assembly, a preassembled installation consisting of a fixing rod and a sleeve is first inserted into the bore.

The fixing rods are then fully inserted into the sleeve, so that the two-component adhesive is forced out through the pores in the sleeve wall, and the microcapsules are ruptured and the adhesive components react.

In particular, the sleeve and fixing rod only become supported after all the adhesive has been extruded from the sleeve.

In accordance with a preferred embodiment of the invention, the internal bore of the cylindrical sleeve is tapered at its closed end to the tenth point of said end, the sleeve wall of said tapering being provided with a plurality of longitudinally extending weakened portions. Prepare a piece.

When the fixing rod is inserted into the sleeve, the fixing rod first forces the two-component adhesive out of the small hole in the sleeve wall.

Then, when the fixing rod reaches the end of the sleeve, it acts on the conically tapered internal bore wall of the sleeve, breaking the sleeve at its weakened part and subsequently inserting it into the bore; Supported together with the sleeve.

According to another embodiment of the invention, the tightening device includes a spring prestressed in the radial direction of the axis of the fixing rod, which spring is released when the fixing rod is installed and holds the fixing rod. do.

In this embodiment, the interior of the sleeve of flexible material includes a spring prestressed against the sleeve wall, which is provided with a microencapsulated two-component dressing.

Insertion of the fixing rod into the sleeve located in the hole, in particular using a percussion drill, destroys the microcapsules and the sleeve.

This frees the spring. The spring relaxes, thereby resting against the hole wall.

The splash then prevents the fixing rod from resting against the wall of the hole in the liquid two-component adhesive, for example if the hole is located horizontally.

Another preferred embodiment includes a sleeve of brittle material surrounding the two-component adhesive, with a covering of expanded metal lath either within the sleeve or on the outside of the sleeve.

When the fixing rod is inserted into the sleeve located in the hole, the covering made of expanded metal lath is deformed in such a way that the many protrusions of the covering are firmly fixed in the hole.

The invention will now be explained by means of particularly advantageous embodiments and in conjunction with the accompanying drawings, in which: FIG.

FIG. 1 shows a fixing rod 1 with a body 2 having a flange 3 at one end.

At its opposite end, the barrel 2 has an external thread 4.

The torso 2 is encapsulated over its entire length in a microcapsule 2
Filled with component adhesive 5 (ie insert).

A cylindrical sleeve 6 according to FIG. 2 is provided for assembling the national rod 1.

At its front end 7, the sleeve 6 has a conical shape, as can be seen in the drawing.

A plurality of elongated ribs 8 are provided around the periphery of the sleeve 6, which is made of, for example, a fairly hard synthetic resin, and are also tilted in the sleeve section 7, as is clear from the drawing.

This rib 8 constitutes a tightening device.

A fixing hole 10 is drilled in the support structure or receiving material 9 for assembling the fixing rod 1 .

Next, the fixing rod 1 having the flange 3 at the top is inserted into the fixing hole 10.

Next, the sleeve 6 is inserted into the barrel 2 with its conically inclined end 7 leading.

In this case, the microcapsules between the outer wall of the sleeve 6 and the hole wall are crushed and their contents are freed.

Furthermore, the longitudinal ribs 8 are deformed in this case, as can be seen in FIG. 1 (this is clearly visible in FIG. 3).

The ribs 8 are given a certain elasticity so that the sleeve 6 is clamped against the receiving material.

This prevents the fixing rod 1 from falling out of the hole 10, for example when it is assembled at a high place.

In this embodiment, the maximum value of the pull-out resistance occurs after curing of the adhesive.

FIG. 4 shows another embodiment of the sleeve 6.

In this case, the longitudinal ribs 8 are replaced by conical nodes 11.

In the embodiment shown in FIG. 5, a fixing rod 1a with a cylindrical body 2a is formed with a conical enlargement at its rear end 12. In the embodiment shown in FIG.

The fixing rod 1a has on its cylindrical part 2a 50 layers of microencapsulated two-component adhesive.

The fixing rad 1a is provided at its front end with an acid thread 13 for receiving the fixing element.

A cylindrical sleeve 6a with a flat outer surface is provided for coupling with the fixing rod 1a.

The sleeve 6a has a slit 14 at its tip.

The fixing rod is preferably made of metal, while the sleeve can be made of metal or synthetic resin.

When assembling the fixing rod of this embodiment, first the fixing rod 1a having the conical end 12 at the top is inserted into the hole.

Next, insert the sleeve 5a into the fixing rod.

The microencapsulated two-component adhesive is then freed for reaction as described above.

The tip of the sleeve 6a is the conical part 12 of the fixing rod 1a.
Once reached, the sleeve 6a is supported at its front end, aided in particular by the slit 14.

This provides a clamping retention force for the fixing rod within the bore.

FIG. 6 shows a generally cylindrical sleeve 15 made of a suitable synthetic resin.

Sleeve 15 includes a bore 16 that tapers conically from the open end of sleeve 15 to the other closed end 17 of sleeve 15 .

In the wall of the sleeve 15 there is provided a radially extending hole 18 whose diameter is smaller than that of the smallest microcapsule to be filled.

In the region of the closed end 17 of the sleeve, also approximately at its center 1, the sleeve 15 is provided with a zone of weakness 19 extending in its longitudinal direction.

Furthermore, the sleeve 15 is provided around its periphery with serrations 20 at the closed end 17 and with longitudinal lips 21 at the open end.

When the wood screw 22, which is a fixing rod, is turned and inserted into the sleeve 15 located in the hole as described above, the two-component adhesive first passes through the small hole 18 of the sleeve due to the destruction of the microcapsules. It is extruded into the gap between the outer wall and the hole wall.

The rib 21 prevents the sleeve 15 from rotating within the hole due to the rotational moment applied when the wood screw 22 is tightened.

When the wood screw 22 is fully screwed into the sleeve 15, the sleeve is broken through and supported along its weakened zone 19.

As a result, the pull-out resistance caused by the tightening action is
It is further enhanced by 0.

In this embodiment, all of the two-component adhesive is first forced out of the sleeve through the small holes 18, and the sleeve is then only broken through at the end.

If the breakthrough has already taken place beforehand, the adhesive contained in the microcapsules can leak out through the resulting openings at a time when the microcapsules are not completely destroyed, so that the adhesive is not fully reacted at this time. I will be made sure not to suffer.

When the sleeve 15.15a shown in FIG. 67 is used with a machine screw, the sleeve can advantageously be provided with an inwardly projecting edge at its open end, into which the thread is guided. part serves as a backing for the open end when tightening the screws at the same time.

FIG. 7 shows a similar modification of the embodiment of the sleeve according to FIG.

The sleeve 15a has a generally cylindrical wall closed at one end 17.

A radially extending small hole 18a is provided in the cylindrical wall.

The inner bore of the sleeve 15a is located in the section 23 near its closed end.
It tapers at , and transitions into a region 24 which is also formed into a cylindrical shape.

The tapered region of the inner bore of the sleeve 15a is provided with a zone of weakness 19a extending in the longitudinal direction of the sleeve.

Furthermore, the sleeve 15a is provided with serrations 20a on its outer wall in the conically tapering region of its inner bore.

When inserting the fixing rod 25 into the sleeve 15a located in the hole as described above, the two-component adhesive first passes through the small hole 13a and connects the outer wall of the sleeve and the hole wall to destroy the microcapsules. It is pushed out into the gap between the

When the fixing rod 25 reaches the conical taper of the bore, the sleeve is broken along its weakened zone 19a and then supported.

As a result, the pull-out resistance caused by the tightening action is
This is further enhanced by 0a.

In the embodiment described, too, all the two-component adhesive is first forced out of the sleeve through the small hole 18a, so that the sleeve is only broken through at its rear end.

FIG. 8 shows another embodiment.

A circumferentially knurled fixing rod 26 is located within the hole 10 in the receiving member 9 .

The fixing rod is then enlarged into a conical shape at 27 at the end.

A flange 28 joins the conical region of the fixing rod, with which it is supported in the bore.

The sleeve 15 shown in FIG. 6 is mounted on the fixing rod 26.
It is possible to insert a sleeve 29 similar to .

An adhesive 5 contained in a microcapsule is provided in the inner hole 30 of the sleeve, and when the sleeve is inserted onto the fixing rod 26, the adhesive passes through the small hole 31 due to the destruction of the microcapsule and is attached to the cylindrical wall of the sleeve. is extruded.

The sleeve 29 is provided at its front end with an acid thread 32 for receiving the fixation element.

When the sleeve 29 is inserted into the fixing rod 26 at 1, at which the front end of the sleeve 29 reaches the conical region 27 of the fixing rod, the sleeve 29 is supported at its tip and is tightened into the hole 10 only.

To facilitate support, the sleeve 29 is split longitudinally at its distal end.

FIG. 9 shows an embodiment of a clasp similar to the embodiment shown in FIG.

In contrast to the embodiment of FIG. 8, here the adhesive 5 in microcapsules is located on the upper surface of the fixing rod 1b, which also consists of a cylindrical part 2b and a conical part 33 joining the cylindrical part at the rear. .

The conical section is provided with a step 34 .

A sleeve 35, whose inner bore conically widens towards its front end, can be pressed against the conical part 33.

The sleeve 35 is provided with a small hole 37 at its front end 36, which likewise allows the adhesive encapsulated in the microcapsules to pass through due to the disruption of the microcapsules.

A helical spring 38 is provided on the top surface of the layer of adhesive contained in the microcapsule.

When the sleeve 35 is inserted into the fixing rod 1b, the adhesive contained in the microcapsules passes through the small hole 37 at the tip of the sleeve 35 due to the destruction of the microcapsules.
It is extruded into the gap between the outer wall of the hole and the hole wall.

A spring 38 is located on the outside of the sleeve 35.

When the front end of the sleeve 35 reaches the conical part of the fixing rod 1b, the sleeve is supported at its tip, thereby creating a clamping force.

A spring 38 additionally provides an initial retention force for the catch in the bore.

In the embodiment according to FIG. 10, the fixing rod 1c has a cylindrical body 2c, which body has a flange 3c at its rear end.

The cylindrical body 2c is provided around its periphery with a layer of adhesive 5 in microcapsules, around which metal consisting of expanded metal lath 39 is located.

For assembly, a fixing rod having a flange 3c at the top is inserted into a hole 10 in the receiving member 9.

Then, the hollow cylindrical sleeve 6c is inserted into the cylindrical body 2c of the fixing rod to destroy the microcapsules of the two-component adhesive.

At this time, the expanded metal lath 39 is deformed and tightened between the outer wall of the sleeve 6c and the hole wall.

This results in a tightening effect that produces sufficient initial pull-out resistance of the fixing rod and sleeve.

The sleeve according to FIG. 11 comprises a glass tube 40 in which a microencapsulated two-component adhesive 5 is contained.

An expanded metal lath 3 is placed around the outside of the glass tube 40.
The covering portion 9a is located there.

During assembly, the glass tube 40 is first inserted into the hole.

The fixing rod is then inserted into the glass tube, in particular with a percussion drill, thereby destroying the glass tube and the microcapsules.

During the insertion process, the covering of the expanded metal lath is also deformed, so that the fixing rod is firmly tightened in the hole.

FIG. 12 shows another embodiment of the sleeve.

The sleeve comprises a glass tube 40a and contains microencapsulated adhesive 5 therein.

Furthermore, there is provided within the glass tube 40a a prestressed spring 41 which tends to expand in the radial direction.

For fastening, the sleeve is inserted into the hole in the same manner as the sleeve according to FIG. 11, and then the fixing lock is inserted into the sleeve.

At this time, the glass %f'40a and the microcapsules 5 are similarly destroyed.

The glass tube 40a thus frees the spring 41, which rests against the inner wall of the hole.

This also creates a pull-out resistance of the fixing rod located in the hole.

Furthermore, in the case of horizontal holes, the fixing rod is prevented from resting against the hole wall under its own weight in the still liquid two-component adhesive.

The fixing rod and sleeve according to the various embodiments described above are each made from a suitable material, such as metal or synthetic resin, among others.

Additional relationship This invention is originally patented invention patent No. 1078177 (Japanese Patent Publication No. 5
6-18736), which is an essential part of the configuration of ``an article fixing device for fixing articles to a support structure, especially a support structure made of lightweight construction material, and a fixing rod. and the fixing rod is insertable into a fixing hole provided in the support structure with a gap left between the fixing hole and the fixing rod. and a cylindrical or cylindrical insert disposed in the fixing hole in the passage through which the fixing rod passes and for fixing the fixing rod in the fixing hole, The cylindrical or cylindrical insert is composed of a two-component adhesive consisting of two components that are curable upon reaction in direct contact with each other, at least one component of said two components being encapsulated in microcapsules. the two components are separated from each other by the walls of the microcapsules and mixed with each other; the two components are bonded to each other via the walls of the microcapsules by a binder, the walls of the microcapsules are A cylinder configured such that one end of the fixing rod is inserted into the fixing hole and is broken when the cylindrical or cylindrical insert is squeezed, bringing the two components into direct contact with each other. ``An article fixing device comprising a shaped or cylindrical insert'' is an essential part of its structure, and it achieves the same purpose as the original patented invention. , the present invention further improves the original patented invention by providing that ``immediately after the fixing rod is accommodated in the fixing hole and the two-component adhesive fixes the fixing rod in the fixing hole. In order to achieve the above object more reliably, the fixing rod is provided with a tightening device for retaining the fixing rod in the fixing hole before the reaction occurs to a sufficient extent. This is what I did.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of one embodiment of an article securing device according to the present invention. 2 is a perspective view of a sleeve with longitudinal lips forming part of the fixing rod according to FIG. 1; FIG. FIG. 3 is a cutaway sectional view of the fixing rod shown in FIG. 1 in an assembled state. FIG. 4 is a cross-sectional view of the longitudinal lip shown in FIG. 2 in which the longitudinal lip has been replaced with a knot. FIG. 5 is a cross-sectional view of another embodiment of the invention. FIG. 6 is a sectional view of another embodiment of the invention. FIG. 7 is a sectional view of yet another embodiment of the invention. FIG. 8 is a sectional view of yet another embodiment of the present invention. FIG. 9 is a sectional view of yet another embodiment of the present invention. FIG. 10 is a cross-sectional view of yet another embodiment of the present invention. FIG. 11 is a cross-sectional view of yet another embodiment of the present invention. FIG. 12 is a sectional view of yet another embodiment of the present invention. 1.1 as 1 b, 1 c, 25, 26"・Fixing rod, 2, 2a, 2b, 2c=body, 3, 3c. 28...flange, 5...two-component adhesive, 6 .6a
. 6c, 15.15a, 29.35...sleeve, 8.
21... Rib, 9... Receiving material, 10... Fixing hole, 18.18a, 31... Small hole, 22... Wood screw,
3939a...exband metal lath, 40.40
a...Glass tube.

Claims (1)

[Scope of Claims] 1. An article fixing device for fixing an article to a support structure, in particular a support structure made of lightweight construction material, comprising a fixing rod, the fixing rod being attached to the support structure. A fixing rod that can be inserted into a fixing hole provided in the fixing rod with a gap left between the fixing hole and the fixing rod; A cylindrical or cylindrical insert disposed in a fixing hole for fixing the fixing iron in the fixing hole, the cylindrical or cylindrical inserts being directly connected to each other. consisting of a two-component adhesive consisting of two components that are curable upon reaction on contact, at least one of the two components being encapsulated in microcapsules; separated from each other by a wall and mixed with each other; the two components are joined together by a binder through the wall of the microcapsule, and one end of the fixing rod is connected to the wall of the microcapsule; a cylindrical or cylindrical insert configured to be inserted into the hole of the cylindrical or cylindrical insert and to be broken when the cylindrical or cylindrical insert is squeezed, thereby bringing the two components into direct contact with each other. in the article fixing device, immediately after the fixing rod is received in the fixing hole and the two-component adhesive is sufficient to fix the fixing rod in the fixing hole. An article fixing device comprising a tightening device for holding and releasing the fixing rod in the fixing hole before the fixing rod reacts to the fixing hole. 2. The article fixing device according to claim 1, wherein the tightening device includes at least one elastically deformable portion protruding from the outer surface of the fixing iron. 3. The article securing device according to claim 2, wherein the at least one partial portion is a clamp. 4. The article fixing device according to claim 2, wherein the at least one portion is a node. 5. Claims in which the tightening device is expanded in the radial direction when assembled to the fixing rod so that the fixing rod can be supported within the fixing hole. Item fixing device according to item 1. 6. The article securing device of claim 5, wherein said article securing device includes a sleeve, said sleeve being adapted to be radially expanded by said securing iron inserted into said sleeve. 7. The article securing device comprises a hollow cylindrical sleeve filled with a two-component adhesive and closed at one end, the cylindrical wall of the sleeve comprising a number of generally radially extending small holes;
7. The article securing device of claim 6, further comprising at least one end of said sleeve being radially expanded when said securing iron is inserted. 8. The article fixing device comprises a sleeve made of a brittle material surrounding a two-component adhesive, and a covering made of expanded metal lath is provided within the sleeve or on the outside of the sleeve, and the fixing iron is provided within the sleeve. 2. The article fixing device according to claim 1, wherein the article fixing device is adapted to deform the covering portion so that the covering portion is tightly tightened in the fixing hole when inserted.