JP2003193731A - Hinge structure of door body of distribution board for house - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide hinge structure of a door body 4 of a distribution board 1 for a house having excellent durability by enhancing strength with simple structure. <P>SOLUTION: In this hinge structure of the door body of the distribution board for the house, a hinge part 3 provided at the upper part with a hinge hole 9 curved in approximately C-shaped cross section is mounted to a frame cover 2 of the distribution board 1 for the house, and a plate spring 16 curved in opposed shape to the hinge part 3 is attached along the outside of a curved part 10 of the hinge part 3 and clamp-fixed by screws 18a, 18b. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge structure capable of holding the door body of a distribution board for a house, the front body of which is covered with a door body which can be opened and closed by a rotating operation, in an open state.

[0002]

2. Description of the Related Art In the conventional hinge structure of a door 32 of a distribution board 31 for a house, a hinge hole 34 is formed in a frame cover 33, and a hinge pin 35 is inserted into the hinge hole 34 to rotate the door 32. It was installed so that it was possible. Also, the frame cover 3
A leaf spring 36 is attached to 3 in addition to the hinge portion, and the leaf spring 36 is urged toward the door 32.
When the door body 32 was opened, the door body 32 was pressed and could be held in that state.
Further, the leaf spring 36 is usually the same regardless of the size of the door 32.

[0003] In order to always withstand the force applied to the hinge, a lot of materials are used and various parts are reinforced when forming parts related to the hinge.

[0004]

However, in the hinge structure of the door body described above, the biasing force of the leaf spring 36 is large to hold the small door body in the open state, while the large door body is held in the open state. Since it is small in size, it is necessary to increase the number of leaf springs to be attached, which may hinder the opening / closing operation depending on the size of the door body 32.

Further, in order to provide a hinge portion having a shape capable of withstanding a load that is constantly applied, a rib is formed for reinforcement, so that material cost is incurred, and the hinge portion or the hinge portion is required for reinforcement. There is a drawback that the periphery becomes complicated, and it takes time and cost to manufacture a die for forming.

[0006]

Therefore, an object of the present invention is to provide a hinge structure for a door of a distribution board for a house, which has a simple structure and is improved in strength. Is attached to a frame cover of a distribution board for a house with a hinge part provided with a hinge hole curved in a substantially C-shaped cross section, and the leaf spring is bent into a shape facing the hinge part. It is characterized in that it is assembled along the outside of and is fixed by tightening with screws.

Another object of the present invention is to provide a hinge structure for a door of a distribution board for a house in which the operation of the door can be adjusted by the degree of tightening of a leaf spring. It is characterized in that a scale is engraved on the portion facing the end portion of the leaf spring.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION A hinge structure for a door of a distribution board for a house according to the present invention has a hinge part in which an upper part is curved in a C shape to form a hinge hole and a leaf spring insertion groove is formed.
The leaf spring, which was urged upward from the front of the distribution board for the house when it was installed so that the door could be held open, was attached to the hinge part and tightened with screws to fix it. Attach it to the board. The leaf springs are reinforced or supported by the hinge components, thus increasing their durability.

Further, when the leaf spring is screwed to the hinge component, the biasing force of the leaf spring is adjusted according to the degree of tightening of the screw. The hinge parts are engraved with a scale that indicates the degree to which the leaf springs are tightened, indicating the optimum opening and closing sensitivity of the door.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a hinge structure for a door of a distribution board for a house according to the present invention will be described with reference to the accompanying drawings of FIGS.

A device such as a breaker is placed on a base of a distribution board 1 for a house, and a front opening is covered with a frame cover 2 having an operation hole for projecting an operation handle of the breaker or the like.
The hinge component 3 is attached to the frame cover 2 of the distribution board 1 for a house, the hinge pin 5 incorporated in the door body 4 is inserted into the hinge component 3, and the door body 4 is attached so that it can be opened and closed by a rotating operation.

The hinge part 3 has a frame cover mounting portion 6, an intermediate portion 7 and an upper portion 8 which are formed stepwise so as to face the mounting position of the frame cover 2. A hinge hole 9 is curvedly formed in a C-shaped cross section at the tip of the upper portion 8, and a leaf spring insertion groove 11 is provided along the curved portion 10. The frame cover mounting portion 6 has a mounting hole 12 and the intermediate portion 7 has a fixing hole 13
And square holes 14 are provided in the upper portion 8, respectively. Square hole 14
The square nut 15 is assembled and used. The leaf spring 16 is formed so as to face the shapes of the curved portion 10 of the hinge component 3 and the leaf spring insertion groove 11. Further, the leaf spring 16 is provided with screw insertion holes 17a and 17b at positions facing the fixing hole 13 and the square hole 14 provided in the hinge component 3.

The leaf spring 16 is inserted into the leaf spring insertion groove 11 from the side surface of the hinge component 3, the square nut 15 and the screw insertion hole 17b are made to face the fixing hole 13 and the screw insertion hole 17a, respectively, and the screws 18b and 18a are provided. Insert and tighten. The hinge component 3 having the leaf spring 16 assembled therein is fixed to the frame cover 2. The leaf spring 16 is urged toward the upper front side of the distribution board 1 for a house, and the leaf spring 16 and the curved portion 10 together with the hinge pin (not shown) are provided at the end of the door body 4 in a state where the door body 4 is opened. ), And the door body 4 is held in that state. Since the leaf spring 16 is reinforced or supported while being surrounded by the hinge component 3, durability is increased.

FIG. 4 shows a second embodiment of the hinge structure of the door of the distribution board for a house according to the present invention. The leaf spring 19 is assembled to the hinge component 20 and fixed by screws 21a and 21b. At that time, the urging force of the bending portion 22 of the hinge component 20 can be adjusted by the degree of tightening of the screws 21a and 21b, and the force applied to the door body when opening and closing the door body also changes. It can be adjusted. As a second embodiment of the present invention, as shown in FIG.
A mark 23 is engraved on the portion corresponding to the end of the leaf spring 19 to serve as a measure of the opening / closing sensitivity of the door.

In the hinge structure of the door body of the distribution board for a house according to the present invention, the hinge hole formed in the hinge part is not limited to the substantially C-shaped cross section, and a leaf spring is attached to surely secure the hinge pin. The shape may be maintained, and can be appropriately changed without departing from the gist of the present invention.

[0016]

As described above, in the door hinge structure of the distribution board for a house according to the present invention, a hinge part having a hinge hole curved in a substantially C-shaped cross section at the upper part is used for a house. The leaf spring is attached to the frame cover of the switchboard, and the leaf spring is bent in a shape that faces the hinge part, assembled along the outside of the curved part of the hinge part, and tightened with screws. Also, the material for forming can be suppressed, and the manufacturing cost can be reduced. Further, the opening / closing operation of the door body is smooth, and the state can be maintained. Despite the difference in the door size of the distribution board for houses,
It is possible to provide a feeling of operation suitable for the size when opening and closing the door.

Further, since the scale of the hinge is opposed to the end of the leaf spring to be screwed, the scale is engraved, so that the opening and closing operation of the door body can be performed smoothly, and the state can be maintained. The opening and closing sensitivity can be easily changed even by a non-person. In addition, a worker who assembles a distribution board for a house can provide stable quality.

[Brief description of drawings]

FIG. 1 is a partial sectional view showing a hinge structure of a door of a distribution board for a house according to the present invention.

FIG. 2 is an enlarged view of a hinge part in FIG.

FIG. 3 is an exploded perspective view of the hinge structure in FIG.

FIG. 4 is a perspective view showing a second embodiment of the hinge structure of the door body of the distribution board for the house according to the present invention.

FIG. 5 is a partial cross-sectional view showing a hinge structure of a door of a distribution board for a house according to a conventional technique.

[Explanation of symbols]

1 residential distribution board 2 frame cover 3 Hinge parts 4 door body 5 Hinge pin 6 Frame cover attachment part 7 Middle part 8 upper part 9 Hinge hole 10 curved part 11 Leaf spring insertion groove 12 mounting holes 13 fixing holes 14 Square hole 15 Screw parts 16 leaf spring 17a screw insertion hole 17b Screw insertion hole 18a screw 18b screw 19 leaf spring 20 Hinge parts 21a screw 21b screw 22 Curved part 23 scale

Claims (2)

[Claims] 1. In a distribution board for a house in which a door is attached to a frame cover attached to a base so as to be openable and closable by pivotal movement to cover the front surface, a plate is provided so that the door can be held in an open state. A hinge structure of the door body incorporating a spring, wherein a hinge part having a hinge hole formed in a curved shape in a substantially C-shaped cross section is attached to a frame cover of the distribution board for a house, A door hinge structure for a distribution board for a house, characterized in that the spring is bent in a shape facing the hinge part, is assembled along the outside of the curved part of the hinge part, and is fixed by tightening with a screw. 2. The distribution board for a house according to claim 1, wherein in the hinge structure, a scale is engraved on a portion of the hinge component that faces the end of the leaf spring to be screwed. Door hinge structure.