JPH0550908U - Door opening / closing mechanism - Google Patents

Abstract

(57) [Summary] [Structure] An outer door 2 is attached to the opening surface of the box body 1 so that the outer door 2 can be opened and closed. It is arranged. The inner door 3 is attached to hinge-shaped supporting bases 7 and 8 on which the box body is erected via mounting rails 5 and 6 fixed to both left and right side edges of the bottom plate. The hinge-type support bases 7 and 8 are column portions 9 and 10 screwed to the mounting rails 5 and 6, respectively, and the upper ends of the column portions 9 and 10 are knurled on the left and right side edges of the inner door 3. A two-point link hinge mechanism screwed through a screw 17 is provided. [Effect] The inner door can be opened around the hinge support base on the other edge side, which is not released, by releasing the fastening member from the coupling with the fastening member on the side to be opened / closed. The opening / closing direction of the inner door can be freely selected by selecting the fastening member.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an opening / closing mechanism for an inner door of a distribution panel, in which an inner door for protecting electric equipment and wiring of a charging section can be easily attached / detached, and an opening / closing direction can be selected from left and right.

[0002]

[Prior Art]

 In the distribution board, the inner door that covers the wiring is provided with a fixed support base inside the distribution board box, the four corners of the inner door are screwed to the fixed support base, and the inner door is attached and detached by removing the screws. The inner edge of the inner door can be opened and closed by attaching one edge of the inner door via a hinged support that can be opened and closed, and by fixing the other edge of the inner door to a fixing support. Those who support it are known. The inner door is pre-installed in the factory together with the internal electrical equipment.At the installation site of the distribution board, the internal electrical equipment and the inner door are once removed, the box is installed, and then the internal electrical equipment is installed again. It is attached.

[0003]

[Problems to be solved by the device]

 The distribution board that fixes the inner door through the fixed support base must be removed every time when adding new internal electrical equipment or changing the mounting position at the distribution board installation site. Therefore, the work of removing and installing the inner door is troublesome. In that respect, the open / close type inner door is convenient, but since the inner door can only rotate in one direction, if you want to open / close the hinge side, you must switch the positions of the hinge type support and the fixed support. In addition, it takes unnecessary time and effort. Especially when removing the support of the inner door when working with tools, the inner door must be temporarily fixed so that the wiring does not break due to the weight of the inner door. Met.

[0004]

[Means for Solving the Problems]

 Therefore, the present invention has a structure in which the inner door can be opened and closed from either the left or right direction.The structure is such that hinge supports are provided on both edges of the bottom surface of the inside of the box, and hinges are provided at the tips of each hinge support. The movable piece is fixed to the inside so as to be openable and closable, while the inner door is provided with a fastening member that is attachable to and detachable from the movable piece. Further, as the fastening member, a screw hole is provided in the movable piece, a screw insertion hole is formed in the inner door, and a fastening screw having a knurled knob on the head is inserted into the screw insertion hole. The fixing screw is inserted into the screw hole to prevent the screw from coming off, and the fixing screw is detachably screwed into the screw hole by rotating the knob.

[0005]

[Action]

 The inner door can be opened around the hinge support on the other edge that does not release the connection with the movable piece by the fastening member on the side you want to open and close. By selecting, the opening and closing direction of the inner door can be freely selected.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view showing a vertical cross section of the distribution board. An outer door 2 is attached to the opening surface of the box body 1 so as to be openable and closable as indicated by a chain double-dashed line, and the inside of the outer door 2 is charged. An electric device 4 and an inner door 3 as a cover for wiring (not shown) are arranged. The inner door 3 is attached to hinge-shaped support bases 7 and 8 of the box body, which are erected, via mounting rails 5 and 6 fixed to the left and right side edges of the bottom plate. The hinge type support bases 7 and 8 are composed of support columns 9 and 10 screwed to the mounting rails 5 and 6, respectively, and hinges, which will be described later, provided at the upper ends of the support columns 9 and 10. This hinge may be a two-point link type hinge mechanism, or one in which the rotation axis of the column and the movable piece are formed on the same axis without using the arm.

Since the hinge type support bases 7 and 8 have the same structure, the hinge type support base 7 will be described in detail with reference to FIG. The hinge-type support base 7 includes a column portion 9 screwed to a mounting rail 5 provided on the bottom plate of the distribution board box 1, two pivot shafts 11a and 12a connected to the upper end of the column portion 9, The main arm 11 having the shafts 11b and 12b and the movable piece 15 rotatably attached by the regulating arm 12 are provided. A rotary shaft 11a by a rivet shaft is installed on the tip end side between the side plates protruding in parallel from the upper part of the column 9, and a rotary shaft 12a by a rivet shaft is similarly installed on the base end side. Further, a connecting shaft 11b is installed on the base end side between the side plates of the movable piece 15 fixed to the back surface of the inner door 3 by the knurled screws 17 in parallel with the base plate at a right angle, and a connecting shaft 12b is installed on the tip end side. is doing. The main arm 11 is linked between the rotary shaft 11a and the connecting shaft 11b, and the regulating arm 12 is linked between the rotary shaft 12a and the connecting shaft 12b. As described above, the pivot shafts 11a and 12a, the connecting shafts 11b and 12b, the main arm 11, and the regulating arm 12 form a two-point link hinge mechanism.

Also in the hinge type support base 8, similarly, a two-point link type hinge mechanism is formed by the rotating shafts 13 a and 14 a, the connecting shafts 13 b and 14 b, the main arm 13, the regulating arm 14, and the like. Therefore, when the inner door 3 shown by a two-dot chain line in FIG. 2 is arranged at a position that makes an angle with the bottom plate of the distribution board body and a position parallel to the bottom plate as shown by a solid line in FIG. There is no fear that packing, internal wiring, or the like will be wound between the movable pieces 15 and 16 and the support columns 9 and 10.

To mount the knurled screw 17, a screw hole 19 is provided in the movable piece 15 as shown by a chain double-dashed line in FIG. 3, and a screw insertion hole is formed in the inner door 3, and the screw insertion hole is inserted into the screw insertion hole. A knurled screw 17, which is a fastening screw having a knurled knob on its head, is inserted into the head to prevent it from coming off by the fall prevention material 20, and the knurled screw 17 can be attached to the screw hole 19 by rotating the knurled screw 17. Has been. Then, when the inner door 3 is closed, the knurled screw 17 is screwed into the screw hole 19, and when the inner door 3 is opened, the knurled screw 17 is rotated and removed from the screw hole 19, and the knurled screw 17 itself is The fall prevention member 20 prevents the screw from coming off the screw insertion hole. As shown in FIG. 1, the attachment directions of the butterfly type supporting bases 7 and 8 to the bottom plate of the distribution board are set so that the movable pieces 15 and 16 are parallel to the bottom plate at the tips of the columns 9 and 10. With respect to the arranged state, the respective rotary shafts 11a to 14a are moved toward the inner side having the internal electric equipment 4 of the distribution board, and accordingly, to the rotary shafts 11a to 14a. The butterfly-shaped support bases 7 and 8 are fixed so as to face each other so as to be opened and closed toward the side having the internal electric device 4, that is, inside.

The opening / closing mechanism for the distribution panel inner door configured as described above rotates the knurled screw, which is a fastening member on the side to be opened / closed, and removes it from the screw hole 19 of the movable piece, and the screw is prevented by the fall prevention member 20. By pulling the knurled screw 17 that does not fall out of the insertion hole, the inner door can be opened by the hinges of the hinge type supporting bases on the other edge of the inner door 3 facing each other. In addition, the inner door itself can be freely removed by removing all the fastening members.

In the above embodiment, the knurled screws are attached to the opposite left and right edges of the bottom surface of the box body, and the knurled screws are rotated to fix and release the inner door. The fastening members only have to be the opposite edges of the bottom surface of the box body, and may be provided at the upper and lower edges. It should be noted that the attachment of the fastening member to the two adjacent sides of the rectangular bottom plate, that is, the two edges is not excluded. In addition, since a fastening screw with a knurled knob on the head is used as a fastening member, it looks good when placed on the inner door, and it is easy to rotate the knob manually, but The attachment means is not limited to the above-mentioned embodiment, but may be, for example, a slide type in which one protrusion is slidably engaged with an engagement member provided in the other, or a fitting type in which concave and convex members are fitted to each other. As long as the hinge and the movable piece of the hinge type support can be attached and detached and the hinge does not come off when the hinge is used, it may be appropriately changed.

[0012]

[Effect of the device]

 As described above, according to the present invention, since the opening / closing direction of the inner door of the distribution board can be appropriately selected, when adding a new internal electric device or changing the mounting position, the inner door can be removed or the hinge can be changed. It does not take time and effort to replace the positions of the mold support and the fixed support, and the inner door can be opened and closed easily by hand without using any tools. The appearance of the fastening screw part is also good, and the actual benefit is enormous.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a distribution board.

FIG. 2 is an explanatory view of a hinge type support base.

FIG. 3 is an explanatory view of a fastening screw.

[Explanation of symbols]

1 ・ ・ Box, 2 ・ ・ Outer door, 3 ・ ・ Inner door, 4 ・ ・ Electrical equipment 5,6 ・ ・ Mounting rails, 7,8 ・ ・ Hinge type support stand, 9,10 ・ ・ Posts, 11, 13 ... Main arm, 1
2, 14 ... Regulating arm, 11a, 12a, 13a, 1
4a ... Rotating shaft, 11b, 12b, 13b, 14b ...
Connection shaft, 15, 16 ... Movable piece, 17 ... Knurled screw, 18, 19 ... Screw hole, 20.

Claims (2)

[Scope of utility model registration request] 1. An opening / closing mechanism for an inner door that covers electrical equipment and wiring installed in a box body, wherein hinge supports are provided at opposite edges of the bottom surface of the box, and hinges are provided at the tips of the hinge supports. An opening / closing mechanism for an inner door of a distribution panel, in which the movable piece is fixed so as to be able to open and close inward, and the inner door is provided with a fastening member that is attachable to and detachable from each movable piece. 2. A screw hole is formed in the movable piece, a screw insertion hole is formed in the inner door, and a set screw having a knurled knob on the head is inserted into the screw insertion hole and pulled out. The opening / closing mechanism for the inner door of the electricity distribution panel according to claim 1, wherein the fixing screw is removably screwed into the screw hole by a turning operation of the knob.