US20070222348A1

US20070222348A1 - Chest

Info

Publication number: US20070222348A1
Application number: US11/596,132
Authority: US
Inventors: Susumu Kobayashi
Original assignee: Iris Ohyama Inc
Current assignee: Iris Ohyama Inc
Priority date: 2004-05-12
Filing date: 2005-04-28
Publication date: 2007-09-27
Also published as: CN1950000A; WO2005107527A1; JP2005323648A

Abstract

The invention provides a chest in which storability of a drawer is improved. The drawer is formed by a metal mold which can be opened in the vertical direction so that left and right side surfaces, a front surface, and a rear surface are formed to be inclined outward as they go upward by a draft angle. Metallic outer rails which are paired with inner rails in the chest body are provided on the lower portions of the side surfaces. The outer rail is provided with a lower fixed surface to be fixed to a shoulder portion on the side of the lower surface of the drawer and an upright surface extending upright from the lower fixed surface to be fixed to a set-back portion of the lower portion of the side surface of the drawer.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention
The present invention relates to a chest for storing clothes, small articles, and so on.
2. Description of the Related Art
Hitherto, a chest is used for storing clothes or small articles and so on.
The chest is composed of a chest body and a drawer stored in the chest body so as to be capable of being drawn out therefrom.
The drawer is formed of resin using a metal mold and is formed into a rectangular container-shape opening upward. Rails are provided on the side surfaces of the drawer along the upper edges thereof, and rails which are paired with these rails are extended in the chest body.
Accordingly, the drawer can be taken in and out easily by the movement of the rails on the drawer along the rails in the chest body.
However, in the chest in this configuration, it is necessary to secure spaces for arranging the rails between the side surfaces of the drawer and the chest body because of the structure in which the rails are provided on the side surfaces of the drawer.
Consequently, there arises a problem that the capacity of the drawer is reduced.

SUMMARY OF THE INVENTION

In view of such a problem in the related art, it is an object of the invention to provide a chest in which the storability of the drawer can be increased.
In order to solve the above-described problem, a chest according to claim 1 of the invention is a chest including rails extending on the side surfaces of a synthetic resin drawer stored in a chest body in which the rails are provided on the lower portions of the side surfaces.
In other words, when forming the synthetic resin drawer with a metal mold, the side surfaces of the drawer are formed to be inclined outward as they go upward by a draft angle of the metal mold, and the side surfaces are inclined so as to be set back inward as they go downward.
Therefore, gaps between the chest body and the side surfaces of the drawer which are formed in conformity with the wide upper edge are widened as they go downward, and the rails are arranged in these lower spaces.
According to claim 2, the rail is formed with a lower fixed surface to be fixed to the lower surface of the drawer and an upright surface extending upright from the lower fixed surface to be fixed to the side surface of the drawer.
In other words, the lower fixed surface of the rail is fixed to the lower surface of the drawer and the upright surface extending upright from the lower fixed surface is fixed to the side surface of the drawer.
Accordingly, the corners of the lower portion of the drawer are reinforced by the lower fixed surface and the upright surface of the L-shaped rail. Consequently, the rigidity of the drawer can be enhanced.
According to claim 3, the widthwise dimension of the drawer is set to be decreased as it goes downward, so that the opposing side surfaces are inclined.
Accordingly, the draft angle of the metal mold at the time of resin molding can be set, and the drawers can be stored in a stack.

ADVANTAGE EFFECT

As described the above, according to the invention of claim 1, the rails can be mounted using the lower spaces formed by the gaps between the chest body and the side surfaces of the drawer whose width becomes the largest.
Therefore, in comparison with the related art in which the rails are provided on the side surfaces of the wider upper portion, reduction of the capacity of the drawer can be prevented and improvement of storability can be achieved.
According to claim 2 of the invention, the corners of the lower portion of the drawer are reinforced by the lower fixed surface and the upright surface of the L-shaped rail.
Consequently, the rigidity of the drawer can be enhanced.
According to claim 3, the widthwise dimension of the drawer is set to be decreased as it goes downward, so that the opposing side surfaces are inclined. Accordingly, the draft angle of the metal mold at the time of resin molding can be set, and the drawers can be stored in a stack.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front view showing an embodiment of the invention;
FIG. 2 is a side surface in the same embodiment;
FIG. 3 is a drawing showing the inner side surface of a frame member in the same embodiment;
FIG. 4 is a side view showing a drawer in the same embodiment;
FIG. 5 is a cross-sectional view showing a principal portion in the same embodiment;
FIG. 6 is an enlarged drawing of a portion A in FIG. 4;
FIG. 7 is a cross-sectional view taken along the line B-B in FIG. 4; and
FIG. 8 is a cross-sectional view of a principal portion showing a state in which the drawer is drawn out in the same embodiment.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring now to the drawings, an embodiment of the invention will be described. FIG. 1 illustrates a chest 1 in this embodiment, and the chest 1 is used for storing clothes, small articles, and so on.
As shown also in FIG. 2, the chest 1 includes a chest body 11 which constitutes a frame and three rectangular container-shaped drawers 12, . . . provided in the chest body 11.
The chest body 11 includes three frame members 21, . . . connected in the vertically direction, and the frame member 21 at the bottom is provided with leg portions 23, . . . on a bottom surface 22 thereof. The upper frame member 21 is provided with a top plate 24, and the drawers 12, . . . are held between the respective frame members 21, . . . and between the upper frame member 21 and the top plate 24 so as to be capable of drawing out therefrom.
The frame member 21 is formed of synthetic resin and, as shown in FIG. 3, the frame member 21 includes a rectangular bottom plate portion 31 having an opening at the center portion thereof and supporting columns 32, . . . extending upright from the four corners of the bottom plate portion 31.
The supporting column 32 is formed into the shape of a square pole, and integrally includes a supporting column body 41 extending upright from the bottom plate portion 31, and an insert portion 42 provided at the upper end of the supporting column body 41. The insert portion 42 is formed to be smaller than the supporting column body 41 in diameter, and a shoulder 44 is formed at the upper end of the supporting column body 41 where the insert portion 42 extends upright from.
The supporting column 32 is formed into the shape of a rectangular tube, and the supporting column body 41 is provided at the lower end thereof with a connecting portion 45 to which the insert portion 42 of the supporting column 32 which is arranged below or the leg portion 23 is selectively inserted. Accordingly, the frame member 21 on the lower side and the frame member 21 on the upper side can be connected in a state in which the insert portion 42 of the supporting columns 32 of the frame member 21 on the lower side are inserted into the connecting portions 45 of the supporting columns 32 of the frame member 21 on the upper side, and the shoulders 44 of the supporting column bodies 41 on the lower side are brought into abutment with the lower ends of the supporting column bodies 41 on the upper side.
A lower side surface 51 which is bridged between the lower ends of the both supporting columns 32, 32 is integrally formed between the front and rear supporting columns 32, 32 of the frame member 21, and a metallic inner rail 53 provided with a roller 52 is provided on the lower side surface 51 so as to be bridged between the supporting columns 32 and 32.
The drawer 12 held between the left and right supporting columns 32, 32 of the frame member 21 is formed of synthetic resin and, as shown in FIG. 4, is formed into a rectangular container shape having an opening on top. The drawer 12 is formed with a metal mold which is opened in the vertical direction, and a lateral dimension H (see FIG. 5) of left and right side surfaces 61, 61 and the depth dimension of a front surface 62 and a rear surface 63 are formed to be reduced as they go downward by a draft angle. Accordingly, the opposed left and right side surfaces 61, 61 and the opposed front surface 62 and rear surface 63 are inclined and are set to be widened in inner dimension as they go upward, whereby the drawers are adapted to be capable of being stored in a stack.
The side surfaces 61, 61 each are provided with a metallic outer rail 65 which is paired with the inner rail 53 on the lower portion thereof. The outer rail 65 includes a lower fixed surface 73 to be fixed to a shoulder portion 72, as shown in FIG. 5, formed on the side portion of a lower surface 71 of the drawer 21 and an upright surface 75 extending upright from the lower fixed surface 73 to be fixed to a set-back portion 74 at the lower portion of the side surface 61 of the drawer 21 and, as shown in FIG. 4 and FIG. 6, the lower corner at the front end of the upright surface 75 is held in a state of being interposed between a lower locking portion 76 formed on the side surface 61 and the side surface 61. The upper corner at the front end of the upright surface 75 is prevented from moving forward by an angular-shaped projection 77 protruded from the side surface 61.
Then, as shown in FIG. 4 and FIG. 7, the lower fixed surface 73 of the outer rail 65 is held in a state of being interposed between locking strips 81, . . . formed into an L-shape in cross-section provided on the lower surface 71 of the drawer 21 and the lower surface 71 and, as shown in FIG. 4, a roller 82 is provided at the rear end of the upright surface 75. Accordingly, as shown in FIG. 8, the roller 52 provided on the inner rail 53 rotates along an upper surface guide 83 provided on the outer rail 65, and the roller 82 provided on the outer rail 65 rotates along an upper surface guide 84 provided on the inner rail 53, so that the movement of the drawer 21 is facilitated.
In this embodiment configured as described above, when the synthetic resin drawer 12 is formed by the metal mold, the side surfaces 61 of the drawer 21 are formed to be inclined outward as they go upward by the draft angle of the metal mold, and the side surfaces 61 are inclined so as to be set back inward as they go downward. Therefore, gaps K between the chest body 11 and the side surfaces 61 of the drawer 21 which are formed in conformity with the wide upper edge are widened in width as they go downward, and the both rails 53 and 65 are arranged in the lower spaces.
In this manner, the both rails 53 and 61 can be mounted using the lower spaces formed by the gaps K between the chest body 11 and the side surfaces 61 of the drawer 12.
Therefore, in comparison with the related art in which the both rails 53 and 61 are provided on the side surfaces 61 of the wider upper portion, reduction of the capacity of the drawer 21 can be prevented and improvement of storability can be achieved.
The outer rail 65 is formed with the lower fixed surface 73 and the upright surface 75 which is formed into an L-shape in cross section, the lower fixed surface 73 is fixed to the lower surface 71 of the drawer 21 and the upright surface 75 extending upright from the lower fixed surface 73 is fixed to the side surface 61 of the drawer 21.
Accordingly, the corners of the lower portion of the drawer 21 are reinforced by the lower fixed surface 73 and the upright surface 75 formed into an L-shape. Therefore, the rigidity of the drawer 21 can be enhanced.
In addition, since the lateral dimension H of the drawer 12 is set to be reduced as it goes downward, the draft angle of the metal mold at the time of resin molding can be set, and the plurality of drawers 12, . . . can be stored in a stack.

Claims

1. A chest having rails extended on the side surface of a synthetic resin drawer stored in a chest body, wherein the rails are provided on the lower portion of the side surfaces.

2. The chest according to claim 1, wherein the rail is formed with a lower fixed surface to be fixed to the lower surface of the drawer and an upright surface extending upright from the lower fixed surface to be fixed to the side surface of the drawer.

3. The chest according to claim 1, wherein the widthwise dimension of the drawer is set to be decreased as it goes downward, so that the opposing side surfaces are inclined.

4. The chest according to claim 2, wherein the widthwise dimension of the drawer is set to be decreased as it goes downward, so that the opposing side surfaces are inclined.