JPH10323232A - Fitting structure of cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the fitting of a cap in a segregated disposal by releasing the recess and projection engagement between an engagement claw and an engagement recess by a presser tool inserted via an insertion port provided in a part corresponding to the engagement recess of an upper stay or in its adjacent in a cap for coveringly sealing a front end opening part of the upper stay. SOLUTION: A cap 6 constituting an upper stay of a desk which is made of synthetic resin coveringly seals front end opening parts of an outer member 4 and an inner member 5. When this cap 6 is removed from the upper stay, a pin 7 is inserted into an insertion port 48 from the inside side wall 41 side of the outer member faced to the lower leg space of the desk and an engagement claw 65 is pressurized inward, namely, in the releasing direction of the recess/projection engagement with an opening window 58. Then, an additional part 64 formed by projecting the engagement claw 65 is pressurized inward so as to be elastically deformed, the front end of the engagement claw 65 is released from the inside edge of the opening window 58, and the recess/ projection engagement is released. After that, the cap 6 is pulled frontward by being held its front wall part 62 so as to be separated from the upper stay.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap mounting structure for easily removing a cap for closing a front end opening of an upper support rod constituting a leg element such as a desk.

[0002]

2. Description of the Related Art Some legs constituting a desk or the like have a support rod called a stay or the like integrally provided above a leg element for supporting a top plate. This is usually made by pressing a sheet metal material into a channel shape, making the rear part rigidly contact the leg body, and extending the front part of the upper support rod forward from the upper end of the front wall of the leg body. In addition, the leg body supports the top plate load applied to the upper support rod.

Usually, the front end of the upper support rod is open, and a synthetic resin cap is attached to cover the front end opening. In such a configuration, at the time of transportation from the factory, an engagement claw projecting from the side wall of the cap is elastically used in an engagement recess provided on the inner surface of the side wall of the upper support rod and not penetrating the outer surface. It is common to temporarily hold the top support bar and the top support rod together with bolts or the like at the site to temporarily hold the cap together. That is, conventionally, the engaging claw and the concave-convex engaging portion of the engaging recess are hidden from the outside without penetrating the engaging recess through the outer surface so as not to impair the external appearance.

[0004]

However, in such a structure, once the engaging claw and the engaging recess are engaged with the concave and convex once, it is almost impossible to release the concave and convex engagement from outside. In some cases, it was extremely difficult to remove the cap from the upper support rod. At present, the effective use of resources is shouting out loud, and it is indispensable to be able to separate and discard easily in the field of furniture. However, with the cap mounting structure described above, it is not possible to separate the upper metal support rod made of a different material from the synthetic resin cap at the time of disposal, and the recycling of the upper metal support rod and the cap does not progress. It was the current situation.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a method of externally releasing an uneven engagement between an engaging claw and an engaging recess from an external support rod. And an insertion port through which the pressing tool can be inserted.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The cap mounting structure of the present invention comprises a cap made of a material different from the upper support rod at a position where the front end opening of the upper support rod constituting a leg element such as a desk is covered. And an engaging claw projecting from a cap into an engaging recess that does not penetrate the outer surface provided on the inner surface of the side wall of the upper support rod at the insertion position so as to engage the concave and convex using elasticity. In the object, an insertion opening is provided at a portion corresponding to the engagement recess of the upper support rod or in the vicinity thereof, and the engagement claw is pressed by a pressing tool inserted from the outside through the insertion opening to engage with the engagement claw. The concave and convex engagement with the engagement recess can be released.

With this structure, when it is desired to remove the cap from the upper support rod, for example, at the time of disposal, the engaging claw is brought into contact with the engaging recess by a pressing tool inserted from the outside through the insertion opening. Since the cap can be pressed in the direction to release the engagement, the cap can be easily detached from the upper support rod. Therefore, even in ordinary households and companies, it is possible to easily separate the cap made of a synthetic resin and the upper support rod made of sheet metal and then discard them, thereby realizing recycling of the upper support rod and the cap. . In addition, if the engaging claw or its vicinity is slightly pressed by the pressing tool, the uneven engagement is released by the elastic deformation force of the member, so that a small opening is sufficient and the appearance of the upper support rod is impaired. Never.

Further, as a preferred embodiment of the insertion port which does not impair the appearance of the upper support rod, the insertion port is
One provided on the inner side wall of the upper support rod facing the lower limb space such as a desk can be cited. As a specific embodiment of the present invention, the upper support rod includes an outer member having a pair of side walls, and an inner member having a pair of side walls fitted into the outer member, and The recess is an opening window provided on the side wall of the inner member, and the insertion hole is provided on the side wall of the outer member corresponding to the position where the opening window is provided.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a desk A to which the present invention is applied. A top plate B of the desk A is supported on both side edges thereof by a leg body C. The leg body C is composed of a column 1, an upper stay 2
And a lower stay 3 so that the load applied to the upper stay 2 is supported by the lower stay 3 via the column 1.

As shown in FIGS. 1 and 2, the column 1 has a pair of side walls 101 and 102, a front wall 103, and a rear wall 104.
Are integrally formed by bending one sheet metal material, and the rear portion of the upper stay 2 is firmly fixed between the side walls 101 and 102 by welding. The upper stay 2 serves as an upper support rod of the present invention. As shown in FIGS. 3 and 4, the upper stay 2 includes an outer member 4 and an inner member 5 fitted in the outer member 4.
And a cap 6 attached to the front end thereof.

The outer member 4 is, as shown in FIGS.
Inner side wall 4 facing the lower limb space of desk A when fitted on column 1
1, an outer side wall 42, and a bottom wall 43, have an upward U-shape, and are integrally formed by bending a single sheet metal material. The inner side wall 41 and the outer side wall 42
The outer dimension between them is set slightly smaller than the above-mentioned inner dimension of the column 1, and is closely fitted between the side walls 101 and 102 of the column 1. From the upper end of the inner side wall 41, an inner wall 44 that is bent inward vertically vertically is integrally provided,
From the upper end of the outer side wall 42, an inner wall 45 which is bent vertically inward and then rises upward is integrally protruded. Further, a semicircular notch 46 is provided in the center of the front end 43a of the bottom wall 43, which is necessary for performing a bolt fastening operation on the top plate B mounted on the upper stay 2 or the like. I have.

The inner member 5 includes a pair of side walls 51 and 52, an upper wall 53, and a bottom wall 5 as shown in FIGS.
4 and is integrally formed by bending a single sheet metal material. At the center of the bottom wall 54 of the inner member 5, an opening 55 is formed along the longitudinal direction.
Is formed, and an inner wall 56 rising from the bottom wall 54 is integrally provided with the opening 55 therebetween. The opening 55 is necessary when, for example, a bolt fastening operation is performed on the top plate B mounted on the upper stay 2. In this embodiment, even if such an opening 55 is provided, the opening 55 is provided on both sides thereof. Standing inner wall 5
The function of 6 as a rib maintains the strength of the entire stay. The upper wall 53 is also provided with an opening 57 necessary for performing a bolt fastening operation and the like, and a rectangular opening window 58 necessary for attaching the cap 6 is provided near the front end of one of the side walls 52. Is provided.

The left and right outer dimensions and the upper and lower outer dimensions between the side walls 51 and 52 of the inner member 5 are substantially the same as the left and right inner dimensions and the upper and lower inner dimensions of the inner side wall 41 and the outer side wall 42 of the outer member 4 described above. It is supported. Then, the inner member 5 is closely fitted between the inner side wall 41 and the outer side wall 42 of the outer member 4, and the bottom wall 54 is attached to the upper surface of the bottom wall 43 of the outer member 4. The inner member 5 and the outer member 4 are welded. It should be noted that the upper wall 53 of the inner member 5 is formed so that the inner walls 44 and 45 of the outer member 4
5 has a shape substantially corresponding to FIG.

As shown in FIGS. 4, 11 and 12, the cap 6 is made of a synthetic resin which covers the front end openings of the outer member 4 and the inner member 5, and is inserted into the inner member 5. And a front wall portion 62 provided integrally with the charging portion 61 and concealing the front end opening. The charging portion 61 is formed by the rib 69 and the additional portion 6 from the side wall 68.
4, and an engaging claw 65 that protrudes from the attached portion 64 and engages with the opening window 58 of the inner member 5. Rib 6
When inserted into the inner member 5, the attachment 9 and the attached portion 64 are pressed against the inner surfaces of the side walls 51 and 52 via the engagement claws 65 and are elastically deformed inward. After being combined, it is restored again and comes into close contact with the inner surfaces of the side walls 51 and 52. The engaging claw 65 has a substantially right-angled triangular shape in a plan view in which a front end face 65 a is orthogonal to the side wall 52.
When the cap 5a enters the opening window 58 and abuts on the inner edge thereof, the cap 6 engages and recesses with the inner member 5 and is temporarily held. In addition, what is shown by reference numeral 66 in the figure is, for example,
A projection that engages with an engagement hole (not shown) on the lower surface of the top plate B when mounting the top plate B on the upper stay 2 and performs positioning. It is a bolt insertion hole necessary for, for example, fastening the cap 6 together when fastening the stay 2.

The front wall portion 62 is provided with both side walls 41, 4 of the outer member 4 so as to cover the front end opening of the upper stay 2 without any gap.
It has a shape substantially corresponding to the external dimension between the two and the shape of its front end. In this embodiment, as shown in FIGS. 4 and 7, this embodiment has a small-diameter insertion opening through which a small pin 7 serving as a pressing tool is inserted near the front end of the inner side wall 41 of the outer member 4. 48 is provided so that the concave-convex engagement between the engaging claw 65 of the cap 6 and the opening window 58 of the inner member 5 can be easily released from the outside.

That is, when removing the cap 6 from the upper stay 2, as shown in FIGS.
The pin 7 is inserted into the insertion port 48 from the inner side wall 41 side of the outer member 4 facing the lower limb space, and the engaging claw 65 is pressed in a direction of releasing the concave-convex engagement with the opening window 58, that is, inward. Since the attached portion 64 formed by projecting the engagement claw 65 is elastic, it is pressed inward and is elastically deformed, and the front end surface 65a of the engagement claw 65 is disengaged from the inner edge of the opening window 58, and the unevenness is increased. Is canceled. Thereafter, the front wall 62 of the cap 6 is gripped and pulled forward, and the cap 6 is lowered when the front surface of the projection 66 of the cap 6 contacts the front end of the opening 57 of the upper wall 53 of the inner member 5. To separate from the upper stay 2.

With such a configuration, when shipping from the factory, the engaging claw 65 and the opening window 58 are engaged with each other so that the cap 6 is temporarily held without impairing the transportation convenience. After being transported to the site, the cap 6 can be fully fastened to the upper stay 2 together with the top plate B by inserting a bolt into the bolt insertion opening 67. In addition, at the time of disposal, the cap 6 and the upper stay 2 can be easily separated and easily separated. In addition, if only a part of the engaging claw 65 is pressed, the concave-convex engagement can be released by utilizing the elastic deformation of the member, so that the insertion hole 48 is sufficient with a small-diameter hole.
Since the insertion port 48 is provided in the inner side wall 41 of the outer member 4, the appearance of the desk A as a whole is not impaired.

Further, in this embodiment, since the upper stay 2 has a double wall structure composed of the outer member 4 and the inner member 5, the strength of the top plate B on the upper stay 2 can be increased effectively. The load can be reliably supported. In addition,
The specific configuration of each unit is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, in this embodiment, the case where the pin 7 is applied as the pressing tool has been described. However, the engaging claw 65 may be pressed by the tip using a driver or the like. Also, the shape of the insertion port 48 may be any shape such as a slit as long as the pressing tool can be inserted without damaging the appearance of the upper stay 2.

[0019]

The present invention is embodied in the form described above and has the following effects. That is, in the cap mounting structure of the present invention, a cap made of a material different from the upper support rod is inserted into a position for covering the front end opening of the upper support rod constituting a leg element such as a desk, and the insertion position In the one in which the engaging claw projecting from the cap in the engaging recess not penetrating the outer surface provided on the inner surface of the side wall of the upper support rod is made to engage and recess using elasticity,
An insertion opening is provided at or near a portion corresponding to the engagement recess of the upper support rod, and the engaging claw is pressed by a pressing tool inserted from the outside through the insertion opening, thereby associating with the engagement recess. The configuration is such that the combination can be canceled.

With such a configuration, the upper support rod and the cap can be easily detached with a simple configuration, and the parts can be easily separated at the time of disposal even in a general household or a company. Recycling of the rod and the cap can be realized. Further, if the insertion port is provided on the inner side wall of the upper support rod facing the lower limb space of the desk or the like, the appearance of the entire desk is not impaired.

Further, the upper support rod is composed of an outer member having a pair of side walls, and an inner member having a pair of side walls fitted in the outer member, wherein the engaging recess is formed on the side wall of the inner member. If the insertion port is provided on the side wall of the outer member corresponding to the position where the opening window is provided, the strength of the upper support rod is effectively increased, and the ceiling hooked on the upper support rod is provided. It is possible to provide an upper support rod that can securely support the load of the plate and can easily remove the cap.

[Brief description of the drawings]

FIG. 1 is an overall perspective view according to an embodiment of the present invention.

FIG. 2 is a side view showing the main part.

FIG. 3 is a perspective view showing the main part.

FIG. 4 is an exploded perspective view showing the main part.

FIG. 5 is a front view showing the outer member.

FIG. 6 is a plan view showing the outer member.

FIG. 7 is a right side view showing the outer member.

FIG. 8 is a front view showing the inside member.

FIG. 9 is a plan view showing the same inner member.

FIG. 10 is a right side view showing the inside member.

FIG. 11 is a plan view showing the same cap.

FIG. 12 is a side view showing the cap.

FIG. 13 is an operation explanatory view in a cross-sectional view taken along line II of FIG. 3;

FIG. 14 is an operation explanatory view in a sectional view taken along line II-II of FIG. 13;

[Explanation of symbols]

 A: desk C: leg element (leg body) 2: upper support rod (upper stay) 4: outer member 41: inner side wall 42: outer side wall (side wall) 48: insertion port 5: inner member 51, 52 ... side wall 58 ... Engaging recess (opening window) 6 ... Cap 65 ... Engaging claw 7 ... Pressing tool (pin)

Claims (3)

[Claims] 1. A cap made of a material different from that of the upper support rod is inserted into a position for covering a front end opening of an upper support rod constituting a leg element of a desk or the like. An engaging claw protruding from a cap in an engaging recess that does not penetrate the outer surface provided on the inner surface of the side wall is made to engage with the engaging claw using elasticity. An insertion opening may be provided at or near the corresponding portion, and the engaging claw may be pressed by a pressing tool inserted from the outside through the insertion opening to release the uneven engagement between the engaging claw and the engaging recess. A cap mounting structure characterized in that it is configured as described above. 2. The cap mounting structure according to claim 1, wherein said insertion port is provided on an inner side wall of an upper support rod facing a lower limb space of a desk or the like. 3. The upper support rod comprises an outer member having a pair of side walls, and an inner member having a pair of side walls fitted in the outer member, wherein the engagement recess is formed by the inner member. The cap mounting structure according to claim 1 or 2, wherein the opening is provided on a side wall, and the insertion opening is provided on a side wall of an outer member corresponding to a position where the opening window is provided.