JPH10309211A - Collapsible stand - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve positioning and operability in assembling a stand comprising side plates, a top plate, a bottom plate and casters by fixing the top plate on the side plates and the bottom plate under the side plates and attaching the casters to the bottom plate. SOLUTION: A spindle 51 longer than the thickness of a bottom plate 3 is attached to a caster 5, a bottom plate bush 53 to fit into the bottom plate 3 is formed at the foot side of the spindle 51. A side plate bush 54 to fit into a side plate 2 is formed at the front end side of the spindle 51. A bottom plate bush inserting hole 35 extending through the bottom plate 3 is formed in the bottom plate 3, and a side plate bush inserting hole 22 is formed at the lower edge of the side plate 2. The bottom plate bush 53 is forced into the bottom plate bush inserting hole 35. The side plate bush 54 projected from the bottom plate 3 is forced into the side plate bush inserting hole 22, simultaneously positioning the attaching positions of the side plate 2 and the bottom plate 3 and fixing the side plate 2, thereby fixing the bottom plate 3 and the casters 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembling stand for mounting a television receiver or the like, and more particularly to a side plate, a bottom plate and a caster which can be fixed at a time without using screws, and a positioning boss is not required. It is related to a simple assembly structure.

[0002]

2. Description of the Related Art FIG. 5 is an explanatory view illustrating a conventional assembling stand, FIG. 6 is an explanatory view illustrating a mounting structure of a side plate, a bottom plate and casters in a conventional assembling stand, and FIG. FIG. 5 to 7, 1 is a top plate, 2 is a side plate, 3 is a bottom plate, 4 is a back plate, 5 is a caster, 51 is a caster 5
Numeral 52 is a fitting bush for fitting to the bottom plate 3, 6 is a screw for fixing the top plate 1 and the side plate 2, and 7 is a screw for fixing the side plate 2 and the bottom plate 3. A positioning boss 21 is fixed to a lower edge of the side plate 2. Reference numeral 31 denotes a boss fitting hole formed in the bottom plate 3. Reference numeral 32 denotes a caster mounting hole into which the fitting bush 52 of the caster 5 is fitted. 33 is a through hole for the screw 7 provided in the bottom plate 3. Although illustration of the top plate 1 is omitted in FIG. 6, a positioning boss 21 is fixed to the upper edge of the side plate 2 as in the lower edge. The top plate 1 is also provided with a boss fitting hole and a screw through hole.

Next, how to assemble the stand will be described. The bottom plate 3 and the side plate 2 are fixed by fitting the boss 21 at the lower edge of the side plate 2 into the boss fitting hole 31 and then tightening the screw 7 from the back surface of the bottom plate 3. Next, the side plate 2 and the top plate 1 are fixed by tightening the screws 6 from the upper surface of the top plate 1 after fitting the boss on the upper edge of the side plate 2 into the boss fitting hole of the top plate 1. The caster 5 is mounted by fitting the fitting bush 52 into the mounting hole 32 by press fitting. The back plate 4 is attached by a method such as being inserted into a groove provided in the side plate 2. The assembly is completed as described above.

The conventional assembling stand shown in FIGS. 5 to 7 is constructed as described above, and the caster 5 is attached by press-fitting, so that no screws are required. However, the side plate 2 and the bottom plate 3 have to be screwed from the back surface of the bottom plate 3, and there is a problem that workability is very poor.

As a solution to this problem, Japanese Utility Model Application Laid-open No.
There is an assembling stand disclosed in US Pat. No. 5,555,502. Next, an assembling method using this structure will be described with reference to FIG. First, the connecting shaft 12 is inserted into through holes 10 and 11 formed in the bottom plate 3 and the side plate 2 in advance, and the stopper 13 is brought into contact with the lower surface of the bottom plate 3.
4 is projected into a cylindrical groove 15 formed in the side plate 2 in advance.
Thereafter, the rotary binding body 16 is fitted into the cylindrical groove 15, and at this time, the rotary binding body 16 is fitted so that the cutout portion 17 does not contact the engaging portion 14. Next, the rotating binder 1
6 by inserting a tool such as a screwdriver into a hole (not shown) provided in the 6 and turning the rotating binding body 16 rightward in the figure, the thickness of the ridge 18 increases from the starting point 19 to the ending point 20. Since it is formed so as to be gradually thicker, the engaging portion 14 is gradually pulled upward in accordance with the rotation angle of the rotation binding member 16. In this way, the bottom plate 3 and the side plate 2 are firmly connected without using screws, and the casters 5 are attached at the same time.

[0006]

Problems to be Solved by the Invention
In the assembled stand disclosed in Japanese Patent No. 5502, workability is improved because screws are not used to fix the side plate 2 and the bottom plate 3, but the rotary binding member 16 is pulled to pull the connecting shaft 12 upward. It is necessary and there is a problem that the number of parts increases. There is also a problem that a cylindrical groove 15 must be provided in the side plate 2.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem. In addition to providing a bush for fitting to a bottom plate on a support shaft of a caster, a bush for fitting to a side plate is additionally provided. Accordingly, an object of the present invention is to provide an assembling stand that can fix a bottom plate, a side plate, and a caster without using screws, and does not require a positioning boss or a rotary binding body and can reduce the number of parts.

[0008]

According to the present invention, there is provided an assembling stand comprising a stand including a side plate, a top plate, a bottom plate and casters, a top plate fixed on a side plate, a bottom plate fixed below the side plate, and a caster mounted on the bottom plate. In the assembling structure of the stand to attach and assemble, a support shaft longer than the thickness of the bottom plate is mounted on the caster, and a bottom plate fitting portion that fits with the bottom plate is formed at the base of the support shaft. Forming a side plate fitting portion to be fitted with the side plate, forming a bottom plate fitting portion insertion hole penetrating the bottom plate in the bottom plate, forming a side plate fitting portion insertion hole in the lower edge of the side plate, The bottom plate fitting portion is press-fitted into the bottom plate fitting portion insertion hole, and the side plate fitting portion protruding from the bottom plate by the press fitting is pressed into the side plate fitting portion insertion hole, and the mounting position of the side plate and the bottom plate is adjusted. At the same time, fix the side plate, bottom plate and casters Than it is.

Further, the pressure input of the bottom plate fitting portion is larger than the pressure input of the side plate fitting portion.

Further, a rib is provided on each of the bottom plate fitting portion and the side plate fitting portion, and the rib of the bottom plate fitting portion is higher than the rib of the side plate fitting portion.

Further, a rib is provided on each of the bottom plate fitting portion and the side plate fitting portion, and the heights of these ribs are made equal to each other, so that a contact area between the bottom plate fitting portion and the bottom plate fitting portion insertion hole is provided. Is larger than the contact area between the side plate fitting portion and the side plate fitting portion insertion hole.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. FIG. 1 is a sectional view for explaining Embodiment 1 of the present invention, and FIG. 2 is an explanatory view for explaining Embodiment 1 of the present invention. 1 and 2, the same reference numerals as those in FIGS. 5 to 7 indicate the same or corresponding parts. 53
Is a bottom plate fitting portion to be fitted to the bottom plate 3 and is hereinafter referred to as a bottom plate bush. Reference numeral 54 denotes a side plate fitting portion to be fitted to the side plate 2, and is hereinafter referred to as a side plate bush. The bottom plate bush 53 and the side plate bush 54 are formed on the support shaft 51, and a portion having a length corresponding to the thickness of the bottom plate 3 from the base 55 of the support shaft 51 as shown in FIG.
The bush 54 for the side plate is formed at the tip. Therefore, in the first embodiment, the length of the support shaft 51 is
Longer than the thickness of. Reference numeral 56 denotes a rib that cuts into the inner wall of the insertion hole when the bush for the bottom plate and the side plate is fitted into the bush insertion hole by press fitting, and is formed at an appropriate interval on the surface of the bush for the bottom plate and the side plate. Regarding the height of the rib 56, the height of the rib of the bush 53 for the bottom plate is higher than the height of the rib of the bush 54 for the side plate.

A bottom plate bush insertion hole 35 into which the bottom plate bush 53 is fitted is formed in the bottom plate 3. The bottom plate bush insertion hole 35 is formed so as to penetrate the bottom plate 3. A bush 54 for the side plate is provided on the lower edge of the side plate 2.
A bush insertion hole 22 for a side plate into which is inserted is opened. FIG. 2 omits the illustration of the top plate 1 and shows the assembly structure on the left side of the stand, but the right side has the same structure.

Next, how to assemble the stand will be described. First, the support shaft 51 of the caster 5 is inserted into the bottom plate bush insertion hole 35 of the bottom plate 3, and is press-fitted until the base 55 contacts the lower surface of the bottom plate 3. Then, the bottom plate bush 53 is fitted into the bottom plate bush insertion hole 35 and the rib 56 is inserted.
Cuts into the inner wall of the bottom plate bush insertion hole 35, and the casters 5 are fixed to the bottom plate 3. Thus, the four casters are fixed to the bottom plate 3. At this time, the side plate bushing 54 protrudes from the upper surface of the bottom plate 3, and the side plate bushing 54 in this state also has the function of a positioning boss. Next, the bush 54 for the side plate of the side plate 2 is aligned with the bush 54 for the side plate,
The side plate 2 is press-fitted. Then, the side plate bush insertion hole 22
The side plate bush 54 is fitted into the side plate 2, and the rib 56 bites into the inner wall of the side plate bush insertion hole 22, and the side plate 2 and the bottom plate 3
And are fixed. As described above, since the side plate 2, the bottom plate 3, and the casters 5 can be fixed by press-fitting, components corresponding to the rotary binding body 16 in the conventional example of FIG. 8 are unnecessary.
Further, since the side plate bushing 54 also functions as a positioning boss, the positioning boss 21 shown in FIG. 6 is unnecessary.

Here, as described above, the bottom plate bush 53 is used.
Is higher than the rib height of the side plate bushing 54, the force required to press-fit the bottom plate bush 53 into the bottom plate bush insertion hole 35 is greater than the side plate bush 54. Is greater than the force required to press-fit into the bush insertion hole 22 for the side plate (referred to as press-fit). That is, the bush 53 for the bottom plate also has a stronger force for retaining the bush after the bush is fitted into the bush insertion hole by press fitting (the bush 54 for the side plate).
Is greater. Therefore, the casters 5 do not come off from the bottom plate 3 when the side plate 2 is press-fitted. Although not shown, the top plate may be fixed with screws as before.
In this case, since the screw is tightened from the top plate, there is no particular problem in terms of workability.

Embodiment 2 FIG. 3 is a sectional view illustrating a second embodiment of the present invention, and FIG. 4 is a perspective view illustrating a caster according to the second embodiment. In FIGS. 3 and 4, portions denoted by the same reference numerals as those in FIGS. 1 and 2 indicate the same portions,
57 is a bottom plate bush fitted to the bottom plate 3, and 58 is a side plate 2
It is a bush for side plates which fits into. Bush 57 for bottom plate
The bush 58 for the side plate is formed on the support shaft 51, and a portion corresponding to the thickness of the bottom plate 3 from the base 55 of the support shaft 51 is a bush 57 for the bottom plate, as shown in FIG. A bush 58 is formed. Reference numeral 56a denotes ribs that bite into the inner walls of the bottom and side plate bushes when the bottom and side plate bushes are fitted into the bush insertion holes by press fitting, and are formed at appropriate intervals on the surfaces of the bottom and side plate bushes.

In the first embodiment, the height of the rib 56 is made higher for the bottom plate bush than for the side plate bush, and the fitting force of the bottom plate bush is made larger than the fitting force of the side plate bush. In the second embodiment, the height of the rib 56a is the same, and the contact area (referred to as a fitting area) between the bush and the bush insertion hole is different, that is, the length of the bottom plate bush 57 L1 is larger than the length L2 of the side plate bush 58, and the fitting force of the bottom plate bush 57 is larger than the fitting force of the side plate bush 58. According to the second embodiment, since the height of the rib 56a is the same,
The shape of 1 becomes simple. The method of assembling the stand is the same as in the first embodiment.

In the first and second embodiments, a difference is made between the fitting force of the bottom plate bush and the fitting force of the side plate bush. Even if the fitting area is the same, the support shaft 51 of the caster 5
If the bottom plate bushing fitted to the bottom plate 3 and the side plate bushing fitted to the side plate 2 are provided, it can be similarly implemented. In this case, the side plate 2 may be press-fitted while holding the casters 5. Bottom plate 3 and side plate 2 without using screws
Can be fixed, so workability is improved. Further, the positioning boss and the boss insertion hole are not required. If the fitting force of the bottom plate bush is larger than the fitting force of the side plate bush as in the first and second embodiments, the casters 5 do not come off from the bottom plate 3 when the side plate 2 is pressed. Therefore, workability is further improved.

The caster 5 has two wheels as shown in FIG. 8, but is simplified in FIGS. 1 to 7.

[0020]

As described above, according to the present invention, a support shaft longer than the thickness of the bottom plate is attached to the caster, and a bottom plate fitting portion for fitting to the bottom plate is formed at the base of the support shaft. Forming a side plate fitting portion to be fitted with the side plate on the distal end side, forming a bottom plate fitting portion insertion hole formed through the bottom plate in the bottom plate,
A side plate fitting portion insertion hole is formed at the lower edge of the side plate, the bottom plate fitting portion is pressed into the bottom plate fitting portion insertion hole, and the side plate protruding from the bottom plate by the press fitting into the side plate fitting portion insertion hole. Press-fit the fitting part, determine the mounting position of the side plate and the bottom plate,
Since the side plate, the bottom plate and the caster are fixed, the side plate, the bottom plate and the caster can be fixed without using screws. Therefore, the workability of assembly is improved. Further, a boss for positioning and a boss insertion hole are not required. Since a component corresponding to the rotary binding for raising the support shaft of the caster is not required, the number of components required for assembly can be reduced.

Further, since the press-in force of the fitting portion for the bottom plate is made larger than that of the fitting portion for the side plate, when the side plate is fixed to the bottom plate by press-fitting, the casters do not come off from the bottom plate.
Workability is further improved.

Further, since the height of the ribs provided in the bottom plate fitting portion and the side plate fitting portion is made higher by making the bottom plate fitting portion higher, the side plates are pressed into the bottom plate by press fitting. When fixed, the casters do not come off from the bottom plate, and the workability is further improved. Further, a positioning boss and a rotary binding body are not required, and the number of parts required for assembly can be reduced.

The height of the ribs of the bottom plate fitting portion and the side plate fitting portion is the same, and the contact area between the bottom plate fitting portion and the side plate fitting portion and each fitting portion insertion hole is reduced. Since the press fitting is made larger by making the fitting portion larger, the shapes of the fitting portion for the bottom plate and the fitting portion for the side plate become simple, which is advantageous in manufacturing the support shaft of the caster.

[Brief description of the drawings]

FIG. 1 is a sectional view illustrating Embodiment 1 of the present invention.

FIG. 2 is an explanatory diagram illustrating Embodiment 1 of the present invention.

FIG. 3 is a sectional view illustrating Embodiment 2 of the present invention.

FIG. 4 is a perspective view showing a caster according to a second embodiment.

FIG. 5 is an explanatory view illustrating a conventional assembling stand.

FIG. 6 is an explanatory diagram illustrating a mounting structure of a side plate, a bottom plate, and casters in a conventional assembling stand.

FIG. 7 is an explanatory view for explaining how to attach the casters.

FIG. 8 is a cross-sectional view illustrating another example of a conventional mounting structure of a side plate, a bottom plate, and casters.

[Explanation of symbols]

1 Top plate, 2 side plates, 3 bottom plates, 5 casters, 22
Bush insertion hole for side plate, 35 Bush insertion hole for bottom plate, 51 Support shaft, 53, 57 Bush for bottom plate, 54,
58 Bush for side plate, 56, 56a rib.

Claims (4)

[Claims] A stand comprising a side plate, a top plate, a bottom plate and a caster, wherein the top plate is fixed on the side plate, the bottom plate is fixed below the side plate, and the caster is attached to the bottom plate. Attach a support shaft longer than the thickness, forming a bottom plate fitting portion to fit the bottom plate on the base side of the support shaft,
A side plate fitting portion that fits with the side plate is formed at the distal end side of the support shaft, a bottom plate fitting portion insertion hole that penetrates the bottom plate is formed in the bottom plate, and the side plate fitting is formed at the lower edge of the side plate. Forming a bottom portion insertion hole, press-fitting the bottom plate fitting portion into the bottom plate fitting portion insertion hole,
The side plate fitting portion protruding from the bottom plate by the press fitting is press-fitted into the side plate fitting portion insertion hole, and the mounting position of the side plate and the bottom plate is determined, and the side plate, the bottom plate, and the caster are fixed. Assembled stand. 2. The assembly stand according to claim 1, wherein the press-fit of the bottom plate fitting portion is larger than the press-fit of the side plate fitting portion. 3. The bottom plate fitting portion and the side plate fitting portion are provided with respective ribs, and the rib of the bottom plate fitting portion is higher than the rib of the side plate fitting portion. The assembly stand according to claim 2. 4. A rib is provided on each of the bottom plate fitting portion and the side plate fitting portion, and the heights of both ribs are set to be equal to each other to make contact between the bottom plate fitting portion and the bottom plate fitting portion insertion hole. The assembly stand according to claim 1 or 2, wherein the area is larger than the contact area between the side plate fitting portion and the side plate fitting portion insertion hole.