JP2746114B2 - wagon - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wagon which can be moved in and out of a desk.

[0002]

2. Description of the Related Art A wagon constituting a sleeve portion of a desk is generally provided with casters at four corners on a lower surface so as to be able to slide on a floor. Such a structure provides various new usage forms that have not existed before, such as moving one's belongings with the wagon when moving to another desk, or moving documents with the wagon at a meeting or the like to take a meeting table. It is of great significance in making it possible. Also, if you pull out the wagon from the desk, you can use the top surface of the wagon, and at the same time, expand the lower limb space of the desk and improve the livability of the desk, which is also meaningful in assisting and enhancing the function of the desk. It has become something.

[0003]

By the way, in a conventional desk in which the top plate is supported on the left and right side plates, it is conceivable that the desk is biased to one of the side plates in advance to use a wagon. For example, when the present invention is applied to a desk having legs such that a support body stands upright from a central portion of a base having a U-shape in plan view which has recently been considered, a portion corresponding to a side plate is located on a side. Because it is open, there is a possibility that the degree of freedom in arranging the wagon will be significantly improved if even the casters do not interfere with the base. Whether or not a wagon can be properly accommodated at a destination desk or conference table often depends on whether or not a caster interferes with a part of a leg. However, as described above, in the conventional wagon with casters attached to the four corners of the lower surface, the degree of freedom completely disappears when the caster interferes with the base and some other legs, and conversely used At the time, it is a fact that a great inconvenience is forced.

The present invention has been made in view of such a problem, and has as its object to provide a wagon in which the mounting position of a caster can be changed to increase the degree of freedom in arrangement with respect to a desk. I have.

[0005]

In order to achieve the above object, the present invention employs the following configuration.

Namely, wagon according to the present invention includes a caster mounting portions on the lower surface at four corners, in those freely in and out relative to the desk wearing the caster to each caster mounting portions, as the front wheels in the lower surface Casters that work
A position slightly after closer <br/> than the midpoint of the caster that functions as the rear wheels, set in advance auxiliary caster mounting portion, after
The caster functioning as a rear wheel attached to the corner on the side is detached from the caster mounting portion so that it can be replaced with an auxiliary caster mounting portion.

In a specific embodiment, the caster mounting portion and the auxiliary caster mounting portion are nuts embedded in the lower surface of the wagon, and a fastener inserted through the caster from the lower surface side is fastened to the embedded nut. Some are trying to do so.

The present invention is particularly useful when the desk is provided with a base having a U-shape in a plan view, which is opened to the front.

[0009]

With such a structure, when the casters are mounted on the caster mounting portions at the four corners of the lower surface, the load supporting form is the same as that of a normal caster, but at the rear corners.
When replaced in the auxiliary caster mounting portion by removing the casters from the caster mounting portion which serves as a rear wheel is mounted, the load of the wagon mounted on the caster mounting portion and auxiliary caster mounting portion other than the corner portion of the rear side The caster is supported by the caster and the lower surface of the corner is opened. Therefore, for example, when the base constituting the leg is thinner than the gap between the lower surface of the wagon and the floor, the base is inserted deeply into the lower surface of the wagon through the space below the open corner. It is possible to expand the area where the caster does not interfere with the base.

[0010]

An embodiment of the present invention will be described below with reference to the drawings.

The wagon 1 of this embodiment is made of wood,
As shown in FIG. 1, casters 2 are provided at four corners on the lower surface so that the vehicle can slide on the floor.

More specifically, the bottom plate 11 of the wagon 1 will be described.
Caster mounting portions 11a, 11b,
11c and 11d are set.
For each of a to 11d, six onion nuts 12 are cast.

On the other hand, the caster 2 comprises a mounting plate 21, a boss 22 fixed vertically to the mounting plate 21, and a wheel 23 pivotally mounted on the boss 22. The plate 21 is formed with a hole 21a having the same phase as that of the dowel nut 12 of each of the mounting portions 11a to 11d. And
The caster 2 is located at a position where the hole 21a of the mounting plate 21 overlaps the onion nut 12 of each of the caster mounting portions 11a to 11d.
Is attached to the lower surface of the bottom plate 11 of the wagon 1, and in this state, a screw (not shown) inserted from below the mounting plate 21 is fastened to the onset nut 12 using a tool such as a screwdriver, and the caster 2 is attached to the wagon 1. Is attached to the lower surface of the bottom plate 11.

In such a configuration, the present embodiment further includes a key functioning as a front wheel on the lower surface of the bottom plate 11.
The auxiliary caster mounting portions 13a and 13b are located slightly behind the intermediate point between the casters and the casters functioning as rear wheels.
Is set. These auxiliary caster mounting portions 13a,
Similarly to the caster mounting portions 11a to 11d, 13b is also formed by driving six onig nuts 12.
And, as the rear wheels of the caster mounting portions 11a to 11d,
The caster 2 is removed by loosening any of the screws of the caster mounting portions 11b and 11c of the caster that functions as
In the same manner as described above, the caster 2 can be easily replaced with an auxiliary caster mounting portion 13a, for example, as shown in FIG.

Next, one mode of use of the wagon 1 will be described. FIG. 3 shows a desk 3 to which the wagon 1 is applied.
2 and a top plate 33 supported on the upper end of the support 32, and a portion corresponding to a conventional side plate is opened to the side.

When the wagon 1 is applied to such a desk 3, conventional problems can be effectively solved. That is, when the casters 2 are attached to the four corners of the lower surface in the usual manner as shown in FIG. 1, as shown in FIG.
The wagon 1 cannot be inserted deep into the lower limb space of the couchtop 3 due to the interference with the base 31. On the other hand, the caster 2X at the corner is removed using a tool,
When replaced with the auxiliary caster mounting portion 13a shown in FIG.
While the load of the wagon 1 is still effectively supported by the casters 2 attached to places other than the corners,
The lower surface of b will be opened. On the other hand, since the base 31 of the desk 3 in this embodiment has a small vertical dimension as shown in FIG. 3, it passes through the space below the opened mounting portion 11b as shown in FIGS. As a result, the base 31 can be received deep into the lower surface of the wagon 1. That is, it becomes possible to insert the wagon 1 deeper into the lower limb space of the top board 31 as compared with the related art. In addition, such a mode of replacement is performed according to the user's own preference, for example, the caster 2 of the mounting portion 11c.
The wagon 1 can be moved to any position while avoiding interference between the casters 2 and the base 31, such as by disposing the wagon 1 on the left side of the desk 3 by replacing the wagon 1 with the auxiliary mounting portion 13b. For this reason, the degree of freedom in arrangement of the wagon 1 is improved as compared with the related art, and the ease of use inherent in the mobile wagon is fully exhibited.

The specific configuration of each section is not limited to the above-described embodiment. For example, the auxiliary calibration
Star attachment portion position capable of supporting the load of the wagon stably
As a caster that functions as a front wheel and a rear wheel
Any position may be set as long as it is a position slightly behind the intermediate point of the functioning caster . Further, in the above embodiment, the mounting portion is a nut embedded in the lower surface of the bottom plate,
The screw inserted from the caster side was tightened,
A screw shaft may be provided on the caster, and the screw shaft may be directly fastened or driven to the lower surface of the bottom plate of the wagon.
Other configurations can be variously modified without departing from the spirit of the present invention.

[0018]

As described above, the wagon according to the present invention has caster mounting portions at the four corners on the lower surface, and casters are mounted on the respective caster mounting portions so as to be able to freely enter and exit the desk. It functions as a front wheel on the lower surface
Than the midpoint of the caster and the caster acting as a rear wheel
An auxiliary caster mounting part is set in advance at a slightly rearward position, and the caster functioning as a rear wheel mounted on the rear corner is removed from the caster mounting part and replaced with the auxiliary caster mounting part. It is something that you get. Therefore, by replace the auxiliary caster mounting portion corners of the caster of the rear <br/> removed from the caster mounting portion, and it can open the lower surface of the corner portion. Then, while avoiding interference with the base in the space below the open corner, it is possible to insert the wagon deep under the top plate, etc. Therefore, the usability of the wagon can be significantly improved.

[Brief description of the drawings]

FIG. 1 is an essential part perspective view showing one embodiment of the present invention.

FIG. 2 is an operation explanatory view corresponding to FIG. 1;

FIG. 3 is an exemplary perspective view showing one use state of the embodiment;

FIG. 4 is a schematic plan view showing a positional relationship between a base and casters in the embodiment.

FIG. 5 is an operation explanatory view corresponding to FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Wagon 2 ... Caster 3 ... Desk 11a, 11b, 11c, 11d ... Caster mounting part 12 ... Onigut nut 13a, 13b ... Auxiliary caster mounting part 31 ... Base

Claims (3)

(57) [Claims] 1. A movable wagon having caster mounting portions at four corners of a lower surface, and casters mounted on each of the caster mounting portions so that the wagon can be freely moved in and out of a desk, and functions as a front wheel on a lower surface. Keys that function as casters and rear wheels
The auxiliary caster mounting part is set beforehand at a position slightly behind the intermediate point of the caster, and it is attached to the rear corner.
A wagon characterized in that a caster functioning as a rear wheel is detached from a caster mounting portion and can be replaced with an auxiliary caster mounting portion. 2. The caster mounting portion and the auxiliary caster mounting portion are nuts embedded in the lower surface of the wagon, and a fastener inserted through the caster from the lower surface side is fastened to the embedded nut. The wagon according to claim 1, characterized in that: 3. The wagon according to claim 1, wherein the desk is provided with a base having a U-shape in a plan view, the base being opened to the front side.