JP3629643B2 - Shock absorber mounting device and method for horizontal grounding rod such as chair - Google Patents

Description

[0001]
[Industrial application fields]
The present invention, the lower ends of the legs you collateral, in the horizontal chairs and tables and the like which is connected with the ground rod to a mounting device and method of the cushion for the purposes of the protection and slip floor.
[0002]
[Prior art]
Conventionally, the lower ends of the legs you collateral, in chairs and tables, etc. which is connected with the horizontal ground rod, in order to protect the floor, also for non-slip, usually at opposite ends of the ground rod, It fitted a buffer body, and this is, you are stopped Flip sleep in the mounting hole formed in the ground rod.
[0003]
However, in this method, since there is a mounting hole, the strength of the grounding rod decreases, and an excessive force is applied during use, so that the shock absorber moves in the longitudinal direction of the grounding rod or around the grounding rod. rotating and or, when terrible receives a large external force in the direction of removing the cushion from the ground rod, originally is overloaded screwed portion of the cushion is soft, the cushion Sometimes it was damaged.
[0004]
A shock absorber mounting device for a horizontal ground trough that has solved these disadvantages is already known from Japanese Utility Model Publication No. 60-13388 by the present applicant.
As shown in FIG. 5 and FIG. 6 , the grounding piece (02) that fits one buffer (01) on the lower half of the grounding hook (A) and the upper half of the grounding hook (A) consisted of a combination of a pressing piece for fitting (03) to, by you integrally to both members screwed to the cushion to closely surround the ground rod (a) (01) Is.
[0005]
However, in this apparatus, since one cushion consists of two members, the mounting work is troublesome and therefore was essential much time for assembly.
Furthermore, in either of the hold pieces (03) and a ground strip (02), the connecting piece (07) is formed integrally, and on the other, have longitudinal grooves (00) are formed to be engaged therewith, when coupling the two members, the material of friction even size have connection pieces on a soft is (07), longitudinal grooves (00) floats often from, therefore, while pushing it by hand, screwing I had to do the work and was troublesome.
[0006]
[Problems to be solved by the invention]
The present invention for solving the above problems, not to reduce the strength of the ground rod, and never cushion moves along the longitudinal direction of the ground rod during use, further cushion the ground It is an object of the present invention to provide a shock absorber mounting device and method for a horizontal ground trough such as a chair, which has a strong structure and does not rotate around the saddle and is easy to assemble.
[0007]
[Means for Solving the Problems]
In the apparatus of the present invention, one is a buffer body is a ground piece having a shape conforming portion at the bottom of the ground rod of the horizontal leg of a chair or the like, other it is likewise horizontal ground rod legs It is a buffer body that is a pressing piece having a shape part that conforms to the upper part, both the buffer bodies are integrally formed via a hinge , and in the outer central part of either one of the grounding piece and the pressing piece, An engagement piece provided with a concave groove on the peripheral surface is projected, and a protrusion that can engage with the concave groove on the inner peripheral surface is also provided at the other outer central portion. In this way, the two buffer bodies cooperate with each other to tightly sandwich and surround the grounding rod, and the engaging piece and the recessed portion, and the recessed groove and the protrusion in the engaging portion are engaged with each other. Te, it is characterized in that combines both cushion.
In this case, it is desirable that the engaging portion between the two buffer bodies has a structure that is easily welded by pressurization and ultrasonic vibration .
[0008]
In yet method of the present invention, one is a buffer body is a ground piece having a shape conforming portion at the bottom of the ground rod of the horizontal leg of a chair or the like, other it is likewise horizontal ground rod legs It is a buffer body that is a pressing piece having a shape part that fits the upper part of the two, and both the buffer bodies are integrally formed via a hinge , and at the outer central part of either one of the grounding piece and the pressing piece, An engagement piece provided with a concave groove on the peripheral surface is projected, and a protrusion that can engage with the concave groove on the inner peripheral surface is also provided at the other outer central portion. In this way, the two buffer bodies cooperate with each other to tightly sandwich and surround the grounding rod, and the engaging piece and the recessed portion, and the recessed groove and the protrusion in the engaging portion are engaged with each other. Te, bonded to both cushion and while pressing the portion of engagement of the ultrasonic By providing a dynamic, it is characterized by fusing the engaging portion.
[0009]
In this case, it is desirable that the engaging portion between the two buffer bodies has a structure that is easily welded by pressurization and ultrasonic vibration.
[0010]
[Action]
The present invention, since the above arrangement, each of the buffer bodies that have been divided into two conventional, since they are formed integrally, convenient for handling, be fitted to the ground rod in one behavior It is possible and the working efficiency can be raised to a high degree.
Furthermore, in the present invention, since the bonding between the grounding piece and the holding piece is made by welding by ultrasonic vibration and pressurization in addition to the mechanical engagement, no connecting parts are required and the appearance is also improved. It is beautiful.
[0011]
【Example】
FIG. 1 is a front view of a chair to which a shock absorber mounting device for a horizontal ground trough such as a chair of the present invention is applied, FIG. 2 is a front view thereof, and FIG. 3 is a shock absorber in a horizontal ground trough such as a chair of the present invention. perspective view of an open state of an embodiment of a mounting device, Figure 4, seen from the opposite position of FIG. 3 is a perspective view of same open.
[0012]
In Fig 3, parts of the other side is grounded piece (2), front portion (3) is a pressing piece (3), these two are connected by a hinge (4) located in the middle ing. As a material for integrally molding them, for example, polypropylene is preferable. This is because, in particular, at the hinge portion , the molecular arrangement becomes orderly and more tough due to the repeated movement of the bending operation.
[0013]
Longitudinal end portion of the grounding piece (2) (5) (5), as well as longitudinal end portions of the pressing piece (3) (6) (6) is compatible with the horizontal ground rod of the chair (A), respectively It has a shape.
[0014]
An engaging piece (7) protrudes from the outer central portion of the grounding piece (2), and a concave groove (8) is formed in the whole or a part of its peripheral surface. On the other hand, outside the central portion of the pressing piece (3), when put the pressing piece (3) to a horizontal ground rod of the chair (A), the recess engaging piece (7) can engage (9) Is formed. Further, at least a portion of the inner peripheral surface of the recess (9), ridges can engage the aforementioned grooves (8) (10) is formed.
[0015]
The cushioning material (1) is attached to the horizontal grounding rod of the chair ( A ) as follows.
First, the ground pieces under surface of the horizontal ground rod (2) This has, after almost close contact, put Kaiwashi, on a horizontal ground rod pressing piece (3) upward about the hinge (4) . In addition the force, in such projection (10) is fitted grooves (8), pressed against press Saehen the (3) in the ground strip (2).
[0016]
When applying ultrasonic vibration to the center from the engaging piece (7) in this state, the contact surfaces of the concave groove (8) and the projection (10) is welded.
[0017]
The engaging piece (7) may be provided on the pressing piece (3) side, and the recessed portion (9) may be provided on the grounding piece (2) side.
[0018]
【The invention's effect】
According to the present invention , since the buffer body that has been divided into two parts is formed integrally, it is convenient to handle and can be fitted to the grounding rod with one behavior, and the work efficiency is enhanced. I can give you.
[0019]
Furthermore, in the present invention, since the connection between the grounding piece and the holding piece is made by welding by ultrasonic vibration and pressurization in addition to the mechanical engagement, no connecting parts are required and the appearance is also improved. Become beautiful .
[0020]
In addition, since it is not necessary to make a hole in the grounding rod, the strength of the grounding rod is not reduced, and the buffer body does not move along the longitudinal direction of the grounding rod during use. It is possible to obtain a shock absorber mounting device for a horizontal grounding rod such as a chair that has a strong structure and is easy to assemble without rotating around the bag.
[Brief description of the drawings]
FIG. 1 is a front view of a chair in which a shock absorber mounting device in a horizontal grounding rod such as a chair of the present invention is implemented.
Is a side view of FIG. 1;
FIG. 3 is a perspective view of an embodiment of the present invention.
FIG. 4 is a perspective view of FIG. 3 viewed from the opposite direction.
FIG. 5 is a perspective view showing an example of Japanese Utility Model Publication No. 60-13388.
FIG. 6 is an exploded perspective view of the same.
[Explanation of symbols]
(01) Buffer
(02) Grounding piece
(03) Presser piece
(07) Engagement piece
(00) Vertical groove
(1) Buffer
(2) Grounding piece
(3) Presser piece
(4) Hinge
(5) End
(6) End
(7) Engagement piece
(8) Concave groove
(9) Concave part
(10) ridge

Claims (4)

On the other hand but a cushion is a ground piece having a shape conforming portion at the bottom of the ground rod of the horizontal leg of a chair or the like, who else, likewise horizontal upper shaped to conform portion of the ground rod legs A buffer body that is a holding piece, and both the buffer bodies are integrally formed via a hinge , and a concave groove is provided on the peripheral surface at the outer central portion of one of the grounding piece and the holding piece. In the same manner, the other outer central portion is provided with a recessed portion having a protrusion that can be engaged with the engaging piece and that can be engaged with the groove. Thus, the two shock absorbers cooperate with each other so that the grounding rod is tightly sandwiched and enclosed, and the engagement pieces are engaged with the recessed portions, and the concave grooves and the protrusions are engaged with each other to couple the shock absorbers. cushion attachment device in a horizontal ground rod, such a chair, characterized in that the. The engaging portion between both cushion each other, comprising a structure easy welded by ultrasonic vibration and pressure, cushion attachment device in a horizontal ground rod, such as a chair according to claim 1, wherein. On the other hand but a cushion is a ground piece having a shape conforming portion at the bottom of the ground rod of the horizontal leg of a chair or the like, who else, likewise horizontal upper shaped to conform portion of the ground rod legs The holding body is a buffer body, and both the buffer bodies are integrally formed via a hinge , and a concave groove is provided on the peripheral surface in the outer central portion of one of the grounding piece and the pressing piece. An engaging piece is protruded, and a concave portion having a protrusion that can engage with the recessed groove is provided on the inner peripheral surface of the other outer central portion. The buffer bodies cooperate with each other to tightly sandwich and surround the grounding rod, and the engagement pieces and the recessed portions, and the concave grooves and the protrusions in the engagement pieces are engaged to couple the buffer bodies together. and while pressing the portion of engagement of the, by applying ultrasonic vibration, the engaging portion Cushion Mounting in horizontal ground rod chairs etc., characterized in that fusing. 4. The shock absorber mounting method for a horizontal ground rod such as a chair according to claim 3 , wherein the engaging portion between the shock absorbers has a structure that is easily welded by pressurization and ultrasonic vibration.

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