JP2003194035A - Hook - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hook obstructing visual observation and hiding worsening of appearance even when exposure of a pin or dents worsen the appearance after installation. <P>SOLUTION: The hook 1 is installed on a concrete wall 12 or the like. An annular gap 31 is formed between the inner peripheral surface of an elliptical fitting recess 7 in a mounting base 3 and the outer peripheral surface of a head portion 10 of a plug-in pin body 5. An annular plug-in portion 30B of a cover body 30 is plugged into the gap to cover the front face of the head portion 10 of the pin body 5 with a front face covering portion 30A of the cover body 30 so that exposure of the pin 11 or dents caused on the front face of the head portion 10 during installation of the hook 1 are obstructed from visual observation to hide worsening of the appearance. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a hook that can be attached to a concrete wall or a block wall.

[0002]

2. Description of the Related Art A conventional example of this type of hook is shown in FIG. The hook 21 has an attachment substrate 23 integrally provided on an upper end portion of a hook body 22 that locks an object to be locked.
An adhesive layer 24 made of double-sided tape or the like is provided on the back surface of the mounting substrate 23 for temporary fixing. The mounting board 23 is made of resin, for example, and has a plurality of pin insertion holes 25 penetrating from the front surface to the back surface of the board.
The pin 26 for attachment is inserted through.

When the hook 21 is attached to the concrete wall 12, for example, the procedure is as follows. First,
The mounting substrate 23 is temporarily fixed to the concrete wall 12 via the adhesive layer 24 on the back surface thereof. Under this temporarily fixed state,
Insert the pin 26 into the pin insertion hole 25 of the mounting board 23,
By directly hitting the head of the pin 26, the pin 26 is driven into the concrete wall 12 to fix the mounting substrate 23 to the concrete wall 12.

[0004]

However, in the case of the hook 21 having the above-mentioned structure, the head of the pin 26 is directly hit and the pin 26 is hit.
Since it is driven into the concrete wall 12, the hook 21 may not be properly attached due to bending of the pin 26.

By solving the above problems, a hook which can be properly attached to a concrete wall or a block wall has been already proposed by the applicant of the present invention (Japanese Patent Application No. 200-200).
1-256689).

This hook is constructed as shown in FIGS. In these drawings, a hook 1 is attached to a concrete wall or a block wall, and a hook main body 2 that locks an object to be locked, a mounting board 3 that is mounted on an upper end portion of the hook main body 2, The adhesive layer 4 provided on the back surface of the mounting substrate 3 and the insertion pin body 5
It consists of and.

The hook body 2 has a lower portion bent in a U shape, and an engaging hole 6 is formed in the upper end portion as shown in FIG. As shown in FIG. 8, the mounting substrate 3 is a resin product having an elliptical outer shape, and an elliptical fitting concave portion 7 is formed on the front surface thereof concentrically with the outer shape. Further, a fitting groove 8 into which the upper end portion of the hook body 2 is fitted is formed on the back surface of the mounting substrate 3 from the lower end toward the vicinity of the upper end,
An engaging projection 9 that engages with the engaging hole 6 of the hook body 2 is formed in a part of the fitting groove 8. The mounting board 3 is attached to the upper end of the hook body 2 by fitting the upper end of the hook body 2 into the fitting groove 8 while the engaging projection 6 is engaged with the engaging hole 6. In this mounted state, the back surface of the mounting substrate 3 and the back surface of the hook body 2 are flush with each other. Further, an adhesive layer 4 made of hot melt is provided on the back surface of the mounting substrate 3. Since the upper end of the hook body 2 is sandwiched between the adhesive layer 4 and the mounting board 3, the hook body 2 is attached to the mounting board 3 so as not to easily come off.

The insertion pin body 5 has a head 10 having an outer shape of an ellipse which can be fitted in the fitting recess 7 of the mounting board 3, and the head 1.
It is composed of a pair of left and right metal pins 11, 11 that are integrated with 0 and project from the back surface of the head 10. The head 10 is made of resin, and the pin 11 is formed by insert molding.
It is integrated with 0.

The above-mentioned structure is attached in the following procedure. In FIG. 10, first, the adhesive layer 4 on the back surface of the mounting substrate 3 is heated and melted by a fire of a lighter or the like to temporarily fix the mounting substrate 3 to the concrete wall 12 via the adhesive layer 4. Next, the pins 11 of the insertion pin body 5 are directed to the mounting board 3 side, and the head 10 of the insertion pin body 5 is fitted into the fitting recess 7 of the mounting board 3 and formed on the mounting board 3. The pin 11 is inserted into the insertion pin insertion hole 11A thus formed, and the head 10 is tapped to drive the pin 11 into the concrete wall 12. As a result, the hook 1 is attached to the concrete wall 12. In this case, since the head portion 10 of the insertion pin body 5 is guided by the fitting recessed portion 7 of the mounting substrate 3, the pin 11 is not bent when the pin 11 is driven, and the hook 1 can be properly attached. You can

However, with the hook 1 having the above structure,
When the head 10 of the insertion pin body 5 is struck, a load exceeding the design value is likely to be applied to the pin 11 due to variations in the conditions of tapping and differences in hardness of the portion of the concrete wall 12 where the tip of the pin 11 initially contacts. . As described above, when a load exceeding the design value is applied to the pin 11, the reaction force at that time exposes the pin 11 on the front surface of the head 10 or causes a dent on the front surface of the head 10 to attach the pin 11. There is a possibility that the external appearance may be deteriorated. Therefore, even if the appearance after mounting is deteriorated due to the pin 11 being exposed or hitting, it is thought that it is necessary to conclude the visual deterioration by concealing the visual deterioration.

The present invention has been made in view of the above circumstances, and even if the appearance after mounting is deteriorated due to the exposure of pins or the dents, it is possible to conceal the deterioration of the appearance by blocking the visual observation. Intended to provide hooks.

[0012]

A hook according to the present invention comprises a hook main body for locking an object to be locked, a mounting substrate having a fitting recess on the front surface and attached to an upper end of the hook main body.
At least a hook comprising an adhesive layer provided on a back surface of the mounting board, and an insertion pin body formed by projecting a pin on a back surface of a head capable of being fitted into a fitting recess of the mounting board. The cover body covers the front surface of the insertion pin body. According to this configuration, at least the front surface of the insertion pin body can be covered with the cover body, and the visual observation of the front surface of the insertion pin body can be blocked to hide the deterioration of the appearance.

In the hook, the cover body may be made of resin. In the case of this configuration, it is possible to easily retain opacity and to easily mold.

Further, in the hook, the cover body is provided with an insertion portion which can be inserted into a gap formed between the inner peripheral surface of the fitting recess of the mounting substrate and the outer peripheral surface of the insertion pin body. It is preferable. In the case of this configuration, it is possible to prevent foreign matter and moisture from entering the gap, so that it is possible to avoid deterioration of the pin due to the influence of these invading substances and to contribute to maintaining an appropriate attached state for a long period of time.

Further, in the hook, it is preferable that both the mounting substrate and the cover body are provided with engaging means for engaging with each other in a covered state of the cover body. In the case of this configuration, the relative movement of the mounting substrate and the cover body is prevented,
It is possible to reliably prevent the natural displacement and drop of the cover body due to external factors such as vibration after attaching the hook.

[0016]

DETAILED DESCRIPTION OF THE INVENTION

Embodiments of the present invention will be described below with reference to the drawings. In addition, the hook 1 described in FIGS.
The same parts as those in are denoted by the same reference numerals, and the description of the overlapping structure is omitted. FIG. 1 is a perspective view showing an embodiment according to the present invention, and FIG. 2 is a vertical sectional view showing a covering state with a cover body. In these figures, the cover body 30 is for covering the front surface of the head 10 of the insertion pin body 5, and the front cover portion 30A and the front cover portion 30A from the peripheral portion of the front cover portion 30A. Annular insertion part 3 that protrudes to the rear of the
0B is a cap-shaped opaque resin product, and is formed between the inner peripheral surface of the elliptical fitting recess 7 of the mounting substrate 3 and the outer peripheral surface of the head 10 of the insertion pin body 5. The outer shape is formed into an elliptical shape so that the annular insertion portion 30B can be inserted into the annular clearance 31.

Therefore, as shown in FIG. 2, by inserting the annular insertion portion 30B into the annular gap 31, the front surface of the head portion 10 of the insertion pin body 5 can be covered with the cover body 30. Therefore, when the hook 1 is attached to the concrete wall 12, the head 10 of the insertion pin body 5 is
When tapping, variations in tapping conditions and concrete wall 1
2, the load that exceeds the design value is applied to the pin 11 due to the hardness difference of the concrete wall 12 with which the tip of the pin 11 initially contacts, and the pin 11 is exposed on the front surface of the head 10, or Even if the appearance after the hook is attached is deteriorated due to the dent on the front surface, the visual observation can be blocked by the opaque front surface covering portion 30A of the cover body 30 to hide the deterioration of the appearance.

Since the cover body 30 is made of resin, it is possible to easily retain the opacity necessary for blocking the visual observation of the pin 11 exposed and the dents. Moreover, since it can be easily molded, it can be provided at a low cost.

Further, since the annular insertion portion 30B of the cover body 30 is inserted into and covers the annular clearance 31, the annular insertion portion 30B covers the annular clearance 3.
Since 1 can be filled, foreign matter such as dust and dust and moisture can be prevented from entering the annular gap 31. Therefore, it is possible to avoid erosion deterioration of the metal pin 11 due to the influence of foreign matter having a strong acidity and rust deterioration of the metal pin 11 due to the influence of moisture, and to maintain the proper attachment state of the hook 1 for a long period of time. Can contribute. Further, even if the annular insertion portion 30B is inserted into the annular gap 31, the annular insertion portion 30B may be different due to variations in manufacturing accuracy.
The annular gap 31 cannot be properly filled with, and therefore, even if the annular gap 31 still slightly remains,
It is possible to limit entry of foreign matter such as dust and dust and moisture into the remaining annular gap 31 as much as possible, and delay the erosion deterioration and rust deterioration.

FIG. 3 is an exploded perspective view of another embodiment of the present invention. In this figure, a plurality of engagement recesses 32 are cut out at intervals in the circumferential direction in the annular insertion portion 30B of the cover body 30, and an annular insertion portion is formed on the inner surface of the fitting recess 7 in the mounting substrate 3. Engagement projections 33 that can be engaged with the engagement recesses 32 of the portion 30B are formed on the inside and projected from the front surface toward the rear surface.
The engaging means 34 is configured by the mutual engagement of the engaging convex portion 33 with the engaging convex portion 33.

In the above structure, the annular insertion portion 30
If B is inserted into the annular gap 31, the front surface of the head 10 of the insertion pin body 5 can be covered with the cover body 30 as in FIG. The portions 33 are engaged with each other to form the engaging means 34, and an action of preventing relative movement of the mounting substrate 3 and the cover body 30 is generated between the engaging concave portion 32 and the engaging convex portion 33 which are engaged with each other. .
As a result, it is possible to prevent the cover body 30 from being displaced or dropped from occurring spontaneously due to external factors such as vibration after the hook is attached, and thus it is possible to reliably prevent the appearance of the lowered appearance after the hook is attached from being exposed again. It can be prevented.

The outer shape of the cover body 30 is set by the fitting recess 7 of the mounting substrate 3 and the insertion pin body 5 which can be fitted therein.
Since it is performed in conformity with the outer shape of the head 10, it is not limited to the elliptical shape as in the above configuration.

Further, the engaging means 34 is constituted by mutual engagement of the engagement concave portion 32 on the side of the annular insertion portion 30B and the engagement convex portion 33 on the side of the inner surface of the fitting concave portion 7. The engaging means 34 may be configured by mutual engagement of the engaging convex portion on the side of the insertion portion 30B and the engaging concave portion on the inner surface side of the fitting concave portion 7.

Further, as shown in FIG.
A plurality of engaging leg portions 35 are provided at intervals in the circumferential direction in the annular inserting portion 30 </ b> B of the engaging leg portions 3 </ b> B.
The engaging means 34 may be configured by engaging the tip portion of 5 and the recessed portion 36 provided in the bottom of the fitting recessed portion 7 with each other.

Further, as shown in FIG. 5, a flange portion 37 is provided on the front surface covering portion 30A of the cover body 30 so as to project, and the front surface of the mounting substrate 3 is covered by this flange portion 37 or as shown in FIG. Alternatively, the engaging means 34 may be configured by engaging the engaging projection 38 provided on the rear surface of the flange 37 with the engaging recess 39 formed on the front surface of the mounting substrate 3 with each other.

[0027]

Since the hook of the present invention can cover at least the front surface of the insertion pin body with the cover body, at the time of attaching the hook, even if the appearance after attachment is deteriorated, the visual observation is obstructed to prevent the appearance. The decline can be concealed. Further, when the cover body is made of resin, it is possible to easily retain the opacity necessary for blocking the above-mentioned visual observation, and it is possible to easily and inexpensively mold the cover body.
Further, when the cover body is provided with an inserting portion which can be inserted into a gap formed between the inner peripheral surface of the fitting concave portion of the mounting substrate and the outer peripheral surface of the inserting pin body, foreign matter or a foreign substance in the gap is provided. Since it is possible to prevent invasion of moisture, it is possible to avoid erosion deterioration and rusting deterioration of the pin due to the influence of these invading substances and contribute to maintaining the proper attachment state of the hook for a long period of time. Further, in the case where both the mounting board and the cover body are provided with engaging means for engaging with each other in the covering state of the cover body, relative movement of the mounting board and the cover body is prevented, and hook mounting is performed. Spontaneous cover due to external factors such as subsequent vibration
Since it is possible to prevent the body from being displaced or falling off, it is possible to surely prevent the inconvenience that the deteriorated appearance is again exposed after the hook is attached.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment according to the present invention.

FIG. 2 is a vertical cross-sectional view showing a covering state with a cover body.

FIG. 3 is an exploded perspective view showing another embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view showing a first modified example of the engaging means.

FIG. 5 is a vertical cross-sectional view showing a second modification of the engaging means.

FIG. 6 is a vertical sectional view showing a third modified example of the engaging means.

FIG. 7 is a partially cutaway side view showing a state before attachment of a comparative example.

8A is a front view of a mounting substrate of a comparative example, and FIG. 8B is a vertical sectional view thereof.

FIG. 9 is a front view of a hook body of a comparative example.

FIG. 10 (A) is a front view showing a mounting state on a concrete wall of a comparative example, FIG. 10 (B) is a longitudinal sectional view thereof, and FIG. 10 (C) is a longitudinal sectional view thereof.

11A is a perspective view showing a state before attachment of a conventional example, and FIG. 11B is a vertical sectional view showing the attachment state.

[Explanation of symbols]

1 hook 2 hook body 3 mounting board 4 Adhesive layer 5 Insert pin body 7 Fitting recess 10 head 11 pin 30 cover body 30B insertion part 31 Gap 34 Engaging means

Claims (4)

[Claims] 1. A hook main body for locking an object to be locked, a mounting substrate having a fitting recess on the front surface and attached to an upper end portion of the hook main body, and an adhesive layer provided on the back surface of the mounting substrate. A hook having a plug pin body formed by projecting a pin on the back surface of a head that can be fitted into the fitting recess of the mounting substrate, wherein the cover body covers at least the front surface of the plug pin body. A hook characterized by comprising. 2. The hook according to claim 1, wherein the cover body is made of resin. 3. The cover body is provided with an insertion portion that can be inserted into a gap formed between the inner peripheral surface of the fitting recess of the mounting substrate and the outer peripheral surface of the insertion pin body. The hook according to claim 1 or 2. 4. Both the mounting substrate and the cover body,
The hook according to any one of claims 1 to 3, wherein engaging means for engaging with each other in a covered state of the cover body is provided.