JPH11150815A - Supporting structure of door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the supporting structure for a door with which the door can be attached easily. SOLUTION: A door 1 which has a 1st bearing unit 5, in which 1st bearing holes 4 are formed in a turning shaft direction, a box unit 2 which has an opening 9 which is opened and shut by the door 1 and a 2nd bearing unit 11, in which 2nd bearing holes 10 matching with the 1st bearing holes 4 and a shaft member 3 which has a shaft part 20 inserted through the 1st bearing holes 4 and the 2nd bearing holes 10 are provided. Retaining parts 6 are provided in the 1st bearing unit 5. The shaft member 3 has a falling-proof part 7 which is pushed by the part of the box unit and retained with the retaining parts 6b, when the door 1 is turned to close with the shaft part 20 as the center of turn.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door support structure for opening and closing a door used for a distribution board or the like.

[0002]

2. Description of the Related Art FIG. 6 shows a conventional door support structure of this kind.
(Japanese Patent Application No. 4-297325) exists. In this embodiment, a bearing 153 facing the side wall 152 is provided on the back side of the upper end of the door 157, and shaft holes 154 and 155 are formed in the bearing 153 and the side wall 152.
A spring / bearing 156 is provided on the side opposite to the side 2. A recess 157 is formed on the inner surface side so that the back side protrudes from the upper end of the inner lid 160, and a bearing 158 is provided in the recess 157,
The long hole 1 is formed in the side wall 180 facing the hole 159 of the bearing 158.
81 are formed.

The shaft member 159 is inserted through the spring / bearing 156 and the bearing 153 of the door 157, the shaft holes 154 and 155 of the side wall 152, and the shaft hole 159 and the long hole 181 of the bearing 158 of the inner lid 160. Also, the shaft member 15
9, the coil spring 183 is inserted between the spring receiving collar 182 and the spring receiving / bearing 156 so that the door 157 is openably and closably held by the inner lid 160.

[0004]

However, in this door support structure, the coil spring 183 is inserted through the shaft member 159, and the coil spring 183 is compressed and interposed between the spring receiving collar 182 and the spring receiving and bearing 156. Therefore, the shaft member 15
9 and the coil spring 183 are difficult to attach, and the operation of supporting the door 157 is troublesome.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a door support structure capable of facilitating a door mounting operation.

[0006]

According to a first aspect of the present invention, there is provided a door support structure including a door having a first bearing portion having a first bearing hole formed in a rotation axis direction, and an opening which is opened and closed by the door. A box body having a second bearing portion having a second bearing hole aligned with the first bearing hole, and a shaft portion inserted through the first bearing hole and the second bearing hole. A shaft member having a hook portion provided on one of the first bearing portion and the second bearing portion, wherein the shaft member closes the door around the shaft portion and the box and the box member. It has a fall prevention part which is pressed by the other part of the door and is hooked on the hook part.

According to the door support structure of the first aspect, when the door is closed by inserting the shaft portion of the shaft member into the first bearing hole and the second bearing hole, the fall prevention portion is hooked on the hook portion. The shaft member is held by the first bearing portion or the second bearing portion. For this reason, the work of attaching the door can be facilitated. According to a second aspect of the present invention, in the door supporting structure according to the first aspect, the shaft member is formed integrally in a substantially U-shape in which the shaft portion and the falling-off preventing portion face each other.

According to the door support structure of the second aspect, in addition to the same effects as those of the first aspect, the fall prevention portion is easily made elastic, and the fall prevention portion is easily hooked on the hook portion. The door support structure according to claim 3 has the side wall facing the opening side of the box body in a state where the door is closed in claim 2,
The shaft portion is inserted through the first bearing hole and the second bearing hole from the center of the back surface of the door to the peripheral side wall.

According to the door support structure of the third aspect, in addition to the same effects as those of the second aspect, workability is facilitated because the side wall does not hinder the passage of the shaft portion into the bearing hole. The door support structure according to the fourth aspect is the second or third aspect.
In the above, the first bearing portion is formed in a substantially bifurcated shape, the first bearing hole is formed in each of the first bearing portions, and a pair of hook portions with which the fall prevention portion is hooked are formed at each end, and the fall prevention portion is formed. And a projection provided between the pair of hooks for restricting the shaft from coming off in the axial direction from the first bearing hole and the second bearing hole.

According to the door support structure of the fourth aspect, in addition to the same effects as those of the second or third aspect, the shaft member integrally formed in a substantially U-shape is less likely to come off from each bearing portion, Loss of the shaft member can be prevented. According to a fifth aspect of the present invention, in the door supporting structure according to the fourth aspect, the shaft of the shaft member has a length that does not come off from the second bearing hole at a position where the protrusion is engaged with the one hook. Is what you are doing.

According to the door supporting structure of the fifth aspect, in addition to the same effects as those of the fourth aspect, even if an external impact is applied, the shaft portion is less likely to come off from the second bearing hole.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A distribution board to which an embodiment of the present invention is applied will be described with reference to FIGS. That is, the support structure of the door includes the door 1, the box 2, and the shaft member 3. The door 1 has a first bearing portion 5 in which a first bearing hole 4 is formed in the rotation axis direction. In the embodiment, a door of a distribution board is provided, and a pair of first bearings 5 is provided above and below a rotation side portion thereof. The first bearing portion 5 is formed in a substantially bifurcated shape, and has a first bearing hole 4 formed in each of the first bearing portions 5 and a pair of hook portions 6 with which a fall prevention portion 7 described later is hooked is formed at each end. As shown in FIG. 2, the first bearing portion 5 is formed into a substantially bifurcated shape by being bent in a U-shape and extending both side pieces to one side. The bearing hole 4 is formed, a hook portion 6 is formed in a notch shape at the end opposite to the extension direction, and a guide curved surface portion 6a for guiding the hook portion 6 is formed in the vicinity thereof. The door 1 has a side wall 8 facing the opening side of the box 2 when the door 1 is closed.

The box 2 has an opening 9 opened and closed by the door 1.
And the second bearing hole 1 aligned with the first bearing hole 4
0 is formed on the second bearing 11. The second bearings 11 of the embodiment are respectively attached to the upper and lower ends of one side of the edge of the opening 9 of the box body 2, and these second bearings 11 are also, for example, the first bearing 5 and the second bearing 11. Similarly, the second bearing hole 1 is formed in a substantially bifurcated shape by being bent in a substantially U-shape and extending both side pieces to one side.
0 is formed. In this box 2, 13 is an inner lid,
Reference numeral 14 denotes an attachment portion of the inner lid 13 to the box body 2, reference numeral 15 denotes a main breaker, reference numeral 16 denotes a branch breaker, and reference numeral 17 denotes a knockout hole through which a power supply line and a load line are inserted.

The shaft member 3 includes a first bearing hole 4 and a second bearing hole 4.
Has a shaft portion 20 inserted through the bearing hole 10. The shaft member 3 is a part of the box body 2 when the door 1 is closed around the shaft portion 20, for example, the second bearing portion 11 in this embodiment.
And a falling-off preventing portion 7 which is pressed by the hook and is hooked on the hooking portion 6. The shaft member 3 has a substantially U-shape in which the shaft portion 20 and the falling-off preventing portion 21 face each other, and are integrally formed. In addition, the drop-out preventing portion 7 is formed such that the shaft portion 20 has the first bearing hole 4 and the second bearing hole 4.
For example, a protrusion 22 that is bent in a U-shape to prevent the protrusion from coming out of the bearing hole 10 in the axial direction is formed by a pair of hooks 6.
It is provided between them. The shaft portion 20 of the shaft member 3 has a length that does not come off from the second bearing hole 10 as shown in FIG. 5 at a position where the protruding portion 22 is engaged with the one hook portion 6. The direction of insertion of the shaft portion 20 is from the center side of the back surface of the door 1 toward the peripheral side wall 8 and the first bearing hole 4 and the second bearing hole 1.
0 is inserted.

The mounting method of the shaft member 3 will be described.
As shown in FIG. 2, the first bearing hole 4 and the second bearing hole 10 are aligned with the door 1 opened with respect to the box body 2, and the shaft portion 20 is inserted through these. At this time, the drop-out prevention part 7 is shown in FIG.
As shown by an imaginary line in (a), when the door 1 is closed between the first bearing part 5 and the second bearing part 11 and then the door 1 is closed, the falling-off prevention part 7 is moved to the first bearing part 5. 4 (b), and is pushed by the second bearing portion 11 as shown in FIG. 4 (b), whereby the falling-off preventing portion 7 is elastically deformed. While sliding on the guide curved surface portion 6a, the guide portion is pushed into the hook portion 6 of the first bearing portion 5 and is brought into the hooked state as shown in FIG. Also, the shaft member 3 may move in the axial direction with the opening and closing of the door 1. By setting the dimensional relationship of the shaft member 3 as described above, for example, as shown in FIG. The shaft portion 20 does not come off the first bearing hole 4 and the second bearing hole 10 in the retaining state locked to one of the portions 6, and the door 1 does not come off the box body 2.

The closed state of the lid 8 is held by ordinary engaging and disengaging locking means. According to this embodiment, the shaft portion 20 of the shaft member 3 is connected to the first bearing hole 4 and the second bearing hole 4.
When the door 1 is closed by being inserted through the bearing hole 10, the falling-off prevention portion 7 is hooked on the hook portion 6, and the shaft member 3 is held on the first bearing portion 5. For this reason, the work of attaching the door 1 can be facilitated.

Further, since the shaft member 3 is formed in a substantially U-shape in which the shaft portion 20 and the falling-off preventing portion 7 face each other, the shaft member 3 is integrally formed.
The elasticity of the falling-off prevention part 7 is easily taken, and the falling-off prevention part 7 is easily hooked on the hook part 6. Box 2 with door 1 closed
The shaft portion 20 has a first bearing hole 4 extending from the center of the back surface of the door 1 toward the peripheral side wall 8.
Further, since the shaft portion 20 is inserted through the second bearing hole 10, the side wall 8 does not hinder the insertion of the shaft portion 20 into the bearing holes 4 and 10, thereby facilitating the workability.

A first bearing portion 5 is formed in a substantially bifurcated shape, and a first bearing hole 4 is formed in each of the first bearing portions 5 and a pair of hook portions 6 with which a fall-off preventing portion 7 is hooked are formed at each end.
The falling-off preventing portion 7 is configured such that the shaft portion 20 has the first bearing hole 4 and the second bearing hole 4.
Is provided between the pair of hooks 6 to prevent the shaft member 3 from coming off in the axial direction from the bearing hole 10, the shaft member 3 integrally formed in a substantially U-shape comes off from the bearings 5 and 11. This makes it difficult to prevent the shaft member 3 from being lost.

Since the shaft portion 20 of the shaft member 3 has a length that does not come off from the second bearing hole 10 at a position where the protruding portion 22 is engaged with the one hook portion 6, an impact is applied from the outside. Also, it is difficult for the shaft portion 20 to come off from the second bearing hole 10. The hook 6 is formed on the first bearing 5, and the stopper 7 is pressed by a part of the box body 2 and hooked on the hook 6, but the hook 6 is formed on the second bearing. Formed on the door 11, the stopper 7 is pressed against a part of the door 1 side, and
You may be made to catch on.

[0020]

According to the door support structure of the first aspect,
When the door is closed by inserting the shaft portion of the shaft member into the first bearing hole and the second bearing hole, the falling-off prevention portion is hooked on the hook portion, and the shaft member is held on the first bearing portion or the second bearing portion. Is done. For this reason, the work of attaching the door can be facilitated.

According to the door supporting structure of the second aspect, in addition to the same effect as the first aspect, the elasticity of the falling-off preventing portion is easily obtained, and the falling-off preventing portion is easily hooked on the hook portion. According to the door support structure of the third aspect, in addition to the same effects as those of the second aspect, workability is facilitated because the side wall does not interfere when the shaft portion is inserted into the bearing hole. According to the door support structure of the fourth aspect, in addition to the same effect as the second or third aspect, the shaft member integrally formed in a substantially U-shape is less likely to come off from each bearing portion, and Loss can be prevented.

According to the door support structure of the fifth aspect, in addition to the same effects as those of the fourth aspect, even if an external impact is applied, the shaft portion is less likely to come off from the second bearing hole.

[Brief description of the drawings]

FIG. 1 is a perspective view of a distribution board according to an embodiment of the present invention in an open state.

FIG. 2 is a partial perspective view of a rotating portion of the door.

FIG. 3 is a partially enlarged side view thereof.

FIG. 4 is a partial sectional view showing a state where a door is opened and a state where the door is closed.

FIG. 5 is a partially enlarged side view showing a state in which a protruding portion of a shaft member is engaged with a hook portion.

FIG. 6 is a partially exploded perspective view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 2 Box 3 Shaft member 4 1st bearing hole 5 1st bearing part 6 Hooking part 7 Fall prevention part 8 Side wall 9 Opening 10 2nd bearing hole 11 2nd bearing part 20 Shaft part 22 Projection

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Wataru Nagano 1048 Odaka, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd.

Claims (5)

[Claims] 1. A door having a first bearing portion having a first bearing hole formed in a rotation axis direction, and a second bearing having an opening that is opened and closed by the door and aligned with the first bearing hole. A box body having a second bearing portion having a hole formed therein, and a shaft member having a shaft portion inserted into the first bearing hole and the second bearing hole, wherein the first bearing portion and the A hook portion is provided on one of the second bearing portions, and the shaft member is pressed by the other part of the box and the door when the door is closed around the shaft portion and is hooked on the hook portion. A support structure for a door, comprising a fall prevention part. 2. The door supporting structure according to claim 1, wherein the shaft member is formed integrally with the shaft portion and the falling-off preventing portion in a substantially U shape facing each other. 3. The door has a side wall facing the opening side of the box body in a closed state, and the shaft portion has a first bearing hole extending from a center side of a back surface of the door to a peripheral side wall. 3. The door support structure according to claim 2, wherein said door support hole is inserted through said second bearing hole. 4. The first bearing portion is formed in a substantially bifurcated shape, the first bearing hole is formed in each of the first bearing portions, and a pair of hook portions with which the falling-off preventing portion is hooked are formed at each end. 3. The drop-off preventing portion is provided between the pair of hooks with a protrusion for restricting the shaft from coming off in the axial direction from the first bearing hole and the second bearing hole. 4.
Or the support structure of the door of Claim 3. 5. The door according to claim 4, wherein the shaft portion of the shaft member has a length that does not come off from the second bearing hole at a position where the projecting portion is engaged with one hook portion. Support structure.