JP3895626B2 - Containment box - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a storage box having a housing whose front surface is open and a door that opens and closes a front opening of the housing.
[0002]
[Prior art]
An example of a conventional storage box of this type is described in Japanese Patent Application Laid-Open No. 11-152951. The storage box described in this publication includes a hollow rectangular parallelepiped housing whose front surface is open, and a door that opens and closes the front opening of the housing. Between the housing and the door, A support arm and a hinge are attached to move the door rearward while rotating the door upward from the closed position.
[0003]
One end of the support arm is attached to the inner surface of one side of the housing so as to be rotatable about a horizontal axis, and the other end is attached to the back of the door to be rotatable about a horizontal axis. . On the other hand, the hinge has first and second hinge pieces that are rotatably connected to each other, and the first hinge piece is fixed to the upper end portion of the front surface of the housing. The 2nd hinge piece is attached to the back of the door facing the front of a case so that movement in the up-and-down direction (the up-and-down direction of the door located in a closed position) is possible. By adopting such a mounting structure, when the door is opened from the closed position, the door moves backward while rotating upward, and in the open position, the door is positioned substantially parallel to the upper side of the top plate. It has become.
[0004]
[Problems to be solved by the invention]
In the conventional storage box, since the second hinge piece of the hinge is provided on the back surface of the door so as to be movable in the vertical direction, when the door moves from the closed position to the open position side, Move backward along the top board. For this reason, when an article is placed on the top plate, the door cannot be opened, and the upper surface of the top plate cannot be effectively used.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides a housing having a front opening, a door that opens and closes the front opening of the housing, and a closed position in which the door closes the front opening of the housing. A support arm and a hinge provided between the housing and the door for opening the opening of the housing by moving to the rear side of the housing while rotating from In the storage box that fits into the opening when the door is in the closed position, the base end of the support arm is rotatably attached to the inner surface of one side of the housing, and the tip of the support arm is attached to the door Via a pair of links of the hinge on an orthogonal inner surface facing the direction substantially perpendicular to the inner surface of the one side part to which the support arm of the housing is attached. First and second hinges connected to each other so as to be rotatable. Attaching a first hinge piece of said second hinge piece attached to the back of the door, the first hinge piece mounted to be movable in the longitudinal direction of the housing in the orthogonal inner surface, the door is the closed When located at the position, the instantaneous center of the door relative to the first hinge piece is positioned forward of the front surface of the housing, whereby the instantaneous center when the door is positioned at the closed position is It is characterized by being positioned in front of the front surface of the housing .
In this case, it is preferable that a guide member extending in the front-rear direction is provided on the orthogonal inner surface, and the first hinge piece is preferably attached to the guide member so as to be movable in the front-rear direction. It is desirable that an attachment groove is formed, and the guide member is accommodated and fixed in the attachment groove .
It is desirable that the support arm is attached to the inner surfaces of the left and right side portions of the housing, and the first hinge piece of the hinge is attached to the lower surface of the top plate of the housing.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below with reference to FIGS.
As shown in FIGS. 1 and 2, the storage box 1 according to the present invention includes a housing 2 and a door 3. The housing 2 is formed in a hollow rectangular parallelepiped shape by a bottom plate 21, a top plate 22, and left and right side plates 23, 23 (only the left side plate 23 is shown when viewed from the front of the housing 2). The front part and the rear part of the housing 2 are open. The rear opening of the housing 2 may be closed by providing a back plate on the rear surface of the housing 2.
[0007]
The door 3 is for opening and closing the front opening 2a of the housing 2. When the door 3 is in the closed position, the front opening 2a of the housing 2 is shown in FIG. It fits in. When the door 3 moves from the closed position to the open position, as shown by an imaginary line in FIG. 1, the door 3 is pivoted upward so that the lower end of the door 3 protrudes outward from the housing 2. The upper end moves to the rear side along the lower surface (orthogonal inner surface) 22 a of the top plate 22 of the housing 2. Thereby, the door 3 as a whole rotates clockwise in FIG. When reaching the open position, the door 3 becomes substantially parallel to the top plate 22. At this time, the lower end portion of the door 3 when in the closed position protrudes forward from the front opening 2 a of the housing 2. When the door 3 is displaced from the open position to the closed position, the upper end moves forward along the top plate 22 and the lower end rotates downward, as opposed to moving from the closed position to the open position. As a whole, it is displaced in a counterclockwise direction in FIG.
[0008]
In order to rotate the door 3 as described above, a support arm 4 and a slide hinge (hinge) 5 are provided between the housing 2 and the door 3.
[0009]
That is, the case 71 is provided substantially horizontally on the inner surface (one side inner surface) 23 a of the left and right side plates 23. The base end portion 4a of the support arm 4 is connected to the front end portion of the case 71 via a horizontal shaft 72 whose axis is oriented in a direction perpendicular to the inner surface 23a so as to be rotatable in the vertical direction. The front end portion 4b of the support arm 4 is rotatably connected to a substantially central portion in the vertical direction of the back surface 3a facing the front surface portion of the housing 2 of the door 3 via a bracket 73 and a shaft 74 parallel to the shaft 72. Has been. The support arm 4 is constantly urged upward by an urging mechanism (not shown) provided in the case 71. Therefore, the support arm 4 always urges the door 3 upward. The support arm 4 is prevented from rotating downward at high speed by a damper mechanism (not shown) provided in the case 71. The urging mechanism and the damper mechanism are well known as described in, for example, the above-mentioned Japanese Patent Application Laid-Open No. 11-152594, and are not a main part of the present invention, so that description thereof is omitted.
[0010]
A mounting groove 22b having a rectangular cross section extending in the front-rear direction is formed on the lower surface 22a of the top plate 22. The slide rail 6 is accommodated in the mounting groove 22b. The slide rail 6 includes a rail (guide member) 61 attached to the attachment groove 22b, and a movable member 62 supported by the rail 61 so as to be movable in the longitudinal direction (front-rear direction). The lower surface of 62 is positioned substantially on the same plane as the lower surface 22 a of the top plate 22.
[0011]
The slide hinge 5 has a hinge body (first hinge piece) 51 and a cup (second hinge piece) 52, and the hinge body 51 is fixed to the lower surface of the movable member 62. Therefore, the hinge body 51 is movable in the front-rear direction along the lower surface 22 a of the top plate 22. On the other hand, the cup 52 is embedded and fixed on the back surface 3 a with its open portion exposed from the back surface 3 a of the door 3 to the housing 2, and is disposed so as to face the hinge body 51. The hinge main body 51 and the cup 52 are rotatably connected via a pair of links 53 and 54. That is, as shown in FIGS. 3 and 4, one end of the link 53 is rotatably connected to the hinge body 51 via the shaft 55, and the other end of the link 53 is connected to the cup 52 via the shaft 56. It is connected to the pivotable. One end of the link 54 is rotatably connected to the hinge body 51 via a shaft 57, and the other end of the link 54 is rotatably connected to the cup 52 via a shaft 58. The shafts 55 to 58 are arranged in parallel with the shaft 72.
[0012]
Here, it is assumed that the door 3 is now in the closed position. At this time, as shown in FIG. 2, a line L1 that connects a shaft 55 that is the center of rotation of the link 53 with respect to the hinge body 51 and a shaft 56 that is the center of rotation of the link 52 with respect to the cup 52; The line L2 connecting the axes 58 which are the rotation centers with respect to the cup 52 intersects with each other at the point X. This point X is the instantaneous center of the door 3 with respect to the hinge main body 51 when closed, and is located slightly ahead of the front surface of the housing 2.
[0013]
When the door 3 is in the closed position, the line L3 that passes through the point X and extends in the direction orthogonal to the rail 61 (direction orthogonal to the moving direction of the movable member 62) and the rotation of the support arm 4 The line L4 connecting the central axes 72 and 74 intersects at a point Y. This point Y is the instantaneous center when the door 3 is in the closed position. This point Y is located in front of the shaft 74 which is the point of action of the rotational biasing force of the support arm 4 on the door 3. Therefore, as apparent from FIG. 2, when the door 3 is in the closed position, the door 3 is urged to rotate counterclockwise about the point Y by the urging force Z of the support arm 4. . And the lower end part of the door 3 is abutted by the stopper (not shown) provided in the housing | casing 2 with this rotational biasing force, and is maintained in the closed position.
[0014]
When the door 3 is rotated from the closed position to the open position by, for example, about 20 ° and reaches a predetermined first intermediate position, the instantaneous center of the door 3 is positioned on the line of action of the rotation biasing force of the support arm 4 on the door 3. To do. When the door 3 is further rotated to the open position side, the instantaneous center of the door 3 is positioned on the base end side of the support arm 4, that is, on the rear side with respect to the action line of the rotation biasing force of the support arm 4. Become. Therefore, when the door 3 is located between the closed position and the first intermediate position, the door 3 is urged to rotate toward the closed position by the support arm 4, but the door 3 moves to the first intermediate position. When the door 3 is turned to the open position side, the door 3 is urged to turn to the open position side by the support arm 4. However, the rotation biasing force of the support arm 4 toward the open position with respect to the door 3 is due to the weight of the door 3 until the door 3 rotates, for example, about 60 ° from the closed position to reach the second intermediate position. Less than turning force in the closing direction. Therefore, when the door 3 is positioned between the first intermediate position and the second intermediate position, if the door 3 can be freely rotated, the door 3 is rotated to the closed value side by its own weight. Move.
[0015]
When the door 3 exceeds the second intermediate position toward the open position, the rotational biasing force of the support arm 4 with respect to the door 3 becomes larger than the rotational force in the closing direction due to the weight of the door 3. Accordingly, when the door 3 can be freely rotated, the door 3 is rotated to the open position by the rotation urging force of the support arm 4. When the door 3 is rotated to the open position, the movable member 62 hits a stopper (not shown) provided on the rail 61 and cannot move further backward. As a result, the door 3 is maintained in the open position by the rotational biasing force of the support arm 4.
[0016]
In the storage box 1 configured as described above, when the door 3 is rotated from the closed position to the open position, the door 3 is first manually opened and rotated from the closed position to the second intermediate position. Thereafter, the door 3 is rotated to the open position by the rotation biasing force of the support arm 4 and is maintained at the open position. When the door 3 is rotated from the open position to the closed position, the door 3 is manually closed and rotated from the open position to the second rotation position. Thereafter, the door 3 rotates to its first intermediate position against its rotational biasing force of the support arm 4 by its own weight. From the first intermediate position, it is closed and rotated to the closed position by its own weight and the rotational biasing force of the support arm 4. And it is maintained in a closed position by the rotational biasing force of the support arm 4. The door 3 is prevented from rotating at a high speed by the damper mechanism while being closed and rotated from the second intermediate position to the closed position.
[0017]
In the storage box 1 having the above-described configuration, the slide hinge 5 that rotatably supports the upper end of the door 3 is provided on the lower surface 22a of the top plate 22 so as to be movable in the front-rear direction. Move inside the housing 2. Therefore, even if an article is placed on the upper surface 22 c of the top plate 22, it does not obstruct the opening and closing of the door 3. Therefore, the upper surface 22c of the top plate 22 can be effectively used as the article placement surface.
[0018]
Further, the upper end portion of the door 3 is supported by the slide hinge 5 so as to be rotatable, not a simple hinge, and the point X which is the instantaneous center when the door 3 is closed with respect to the hinge body 51 is positioned forward of the front surface of the housing 2. Therefore, the point Y, which is the instantaneous center when the door 3 is closed, is located in front of the front surface of the housing 2. Therefore, when the door 3 fitted to the opening 2a is rotated from the closed position to the open position, the upper edge 3b on the outer side of the door 3 is displaced away from the lower surface 22a of the top plate 22 downward. There is no interference with the lower surface 22a. Accordingly, when the door 3 is closed, the upper end surface of the door 3 can be substantially brought into contact with the lower surface 22a of the top plate 22, and a gap can be prevented from being formed therebetween. Note that the point X may be positioned slightly rearward of the front surface of the housing 2 as long as a slight gap is allowed to be formed. Even in such a case, when the slide hinge is used, the gap can be made smaller than when the hinge having a single rotation axis is used.
[0019]
In addition, this invention is not limited to said embodiment, It can change suitably.
For example, in the above embodiment, the support arm 4 is provided on the inner surfaces 23 a of the left and right side plates 23 of the housing 22, and the hinge body 51 of the slide hinge 5 is provided on the lower surface 22 a of the top plate 22. The support arm 4 is provided on the lower surface 22a of the top plate 22 and the upper surface 21a of the bottom plate 21, respectively, and the hinge body 51 of the slide hinge 5 is provided on the inner surface of one of the left and right side plates 23. You may make it rotate the door 3 to a horizontal direction by providing in 23a so that a movement in the front-back direction is possible. In this case, since the door 3 is displaced along the inner surface 23 a of the side plate 23, even if an article is disposed outside the side plate 23, it does not interfere with the opening and closing of the door 3.
In the above-described embodiment, the independent casing 2 is used as the casing, but the casing may be provided as a part of the building casing.
[0020]
【The invention's effect】
As described above, according to the present invention, since the door displaces inside the housing, even if the article is placed on the top plate or the article is arranged outside the side plate, Will not obstruct the opening and closing of the door. Therefore, the effect that the upper surface of the top plate or the outside of the side plate can be effectively used is obtained.
[Brief description of the drawings]
FIG. 1 is a side sectional view showing an embodiment of the present invention.
FIG. 2 is an enlarged side sectional view showing a main part of the same embodiment;
FIG. 3 is a cross-sectional view showing the slide hinge used in the embodiment in a state where the door is rotated to the closed position.
FIG. 4 is a cross-sectional view showing the slide hinge used in the embodiment in a state where the door is rotated to the open position.
[Explanation of symbols]
X Instantaneous center 1 Storage box 2 Housing 2a Opening 3 Door 3a Rear side of door 4 Support arm 4a Base end 4b Tip 5 Slide hinge (hinge)
6 Slide rail 22 Top plate 22a The bottom surface of the top plate (the orthogonal inner surface)
22b Mounting groove 23 Side plate 23a Inner side surface (one side inner surface)
51 Hinge body (first hinge piece)
52 cup (second hinge piece)
53 Link 54 Link 61 Rail (guide member)
62 Movable member

Claims (4)

A housing with an open front, a door that opens and closes the front opening of the housing, and the door moves to the rear side of the housing while rotating from a closed position that closes the front opening of the housing A support arm and a hinge provided between the housing and the door, the door being fitted in the opening in the closed position. In the containing box
A base end portion of the support arm is rotatably attached to an inner surface of one side of the housing, and a distal end portion of the support arm is rotatably attached to a back surface facing the opening of the door. Of the first and second hinge pieces connected to the orthogonal inner surface facing in a direction substantially orthogonal to the inner surface of the one side portion to which the support arm is attached , through a pair of links of the hinge, so as to be rotatable relative to each other. A first hinge piece is attached, the second hinge piece is attached to the back surface of the door, the first hinge piece is attached to the orthogonal inner surface so as to be movable in the front-rear direction of the housing, and the door is located at the closed position. The moment center of the door relative to the first hinge piece is positioned in front of the front surface of the housing, whereby the moment center when the door is located in the closed position is that is positioned forward of the front surface Storage box to the butterflies.   The storage box according to claim 1, wherein a guide member extending in the front-rear direction is provided on the orthogonal inner surface, and the first hinge piece is attached to the guide member so as to be movable in the front-rear direction.   The storage box according to claim 2, wherein a mounting groove extending in the front-rear direction is formed on the orthogonal inner surface, and the guide member is stored and fixed in the mounting groove. The support arm is attached to the left and right side portions the inner surface of the housing, both the first hinge piece of the hinge is as claimed in claim 1-3, characterized in that attached to the lower surface of the top plate of the housing Containment box according to

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