JPH0595114U - Distribution board - Google Patents

Abstract

(57) [Summary] [Structure] A torsion coil composed of a coil spring portion (2a) and an arm body (2d) in a pressing member (3) having a lid engaging claw (3b) in an opening of a box body (4). An opening / closing mechanism equipped with a spring (2) is provided, and the lid body is biased in the opening direction by the restoring force of the arm body (2d) while the lid body is fitted in the box body, and the coil spring portion (2a) The pressing member (3) was urged in the lid engaging direction by the restoring force of. [Effect] The lid can be opened / closed and lifted with one touch. Moreover, the spring does not settle due to long-term use or repeated opening and closing.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a distribution board that houses a main circuit breaker, a plurality of branch circuit breakers, and the like.

[0002]

[Prior Art]

 Conventionally, a distribution board is inserted with a flat-blade screwdriver or the like from the outside of the distribution board as shown in FIG. 5 to disengage the inside of the distribution board, or handles (7a), ( There is one in which the lid body is bent by lifting 7a), (8a), and (8a) respectively to release the engagement with the box body. However, in the case of using the above-mentioned minus driver, the hole (6a) may be crushed to make it impossible to open, while in the case of bending the lid, the lid must be lifted while pressing the box strongly. There is a drawback. Therefore, in order to eliminate these defects, as shown in FIGS. 8 and 9, the buttons (9a) and (9a) are pushed to disengage the engaging claws (9b) and (9b), and the U-shaped elastic plate (9c), It has been proposed that the lid can be lifted by (9c).

[0003]

[Problems to be solved by the device]

 However, since the U-shaped elastic plate is made of synthetic resin, if the lid is closed and placed in a contracted state for a long period of time, or if opening and closing is repeated, the settling becomes large. Further, since the engagement of the lid body also depends on the spring property of the button itself made of synthetic resin, the engagement force may be reduced. Therefore, at the end, the lid cannot be lifted or engaged, and the function as the elastic body or the engaging body is lost. Therefore, it is necessary to replace the elastic body or the engaging body or the box body. In addition, since the elasticity of synthetic resin is used, the lid does not rise easily when opened, resulting in a poor operability. In addition, the distribution panel is affected by the heat generated by the electric devices, so that the settling is quick.

[0004]

[Means for Solving the Problems] Therefore, the present invention provides a distribution board that is easy to open and close and can withstand long-term use and repeated opening and closing. That is, the structure means an opening / closing operation in which a coil spring portion and a torsion coil spring composed of an arm body are provided on a pressing member having a lid engaging claw at an appropriate position of any opening in the box body and the lid body. A mechanism is provided to urge the lid body in the opening direction by the restoring force of the arm body while the lid body is fitted in the box body, and at the same time, the pushing member is engaged with the lid body by the restoring force of the coil spring portion. There is a bias in the direction.

[0005]

[Action]

 An opening / closing mechanism, in which a torsion coil spring is attached to a pressing member having a claw for engaging the lid body, is provided at an appropriate position of any of the box body and the lid body, and the lid body is a torsion coil spring. Is urged in the opening direction by the restoring force of the arm body constituting the above, and the pressing member is urged by the coil spring portion in the direction of engaging the lid body. Therefore, when the pressing member is pressed in the direction of releasing the engagement of the lid, the engaging claw is disengaged, the lid is opened, and the pressing member returns to the origin. In addition, the use of torsion coil springs prevents settling.

[0006]

【Example】

 1 to 4 are explanatory views showing an embodiment of a distribution board according to the present invention. The present invention will be described below with reference to these drawings. In FIG. 4, (1) is a distribution board, (4) is a box body, (5) is a lid body, (3) is a pressing member having a lid body engaging claw (3b) (the other one is a box body). It is attached at a symmetrical position on the front surface of the opening). As shown in FIG. 1, a torsion coil spring (2) is attached to the inside of the pressing member (3) to form an opening / closing mechanism. As shown in the figure, the torsion coil spring (2) has a coil spring part (2a), arm bodies (2b) and (2d) at both ends, and a hook (2c) at the tip of each arm body. , (2e) are formed respectively. The coil spring portion (2a) is wound so that a predetermined pitch is formed between each coil, and can be compressed and restored, and the protrusion portion (3a) provided on the back surface of the pressing member (3). Is fitted to. Further, the arm body (2b) is locked to the protrusion (3e), the arm body (2d) extends obliquely upward, and the hook (2e) is projected from the pressing member. It can be rotated and restored by the torsional stress of the coil spring and the bending moment of the arm itself. Then, as shown in FIG. 2, the pressing member (3) has its shafts (3d), (3d) attached to the bearing (4b) on the pressing member mounting portion (4a) formed on the front surface of the opening of the box body (4). , (4b) are rotatably attached, and the torsion coil spring (2) is attached by accommodating the coil spring portion (2a) in a compressed state in the coil spring portion accommodation space (4c).

FIG. 4A shows a state in which the pressing member (3) is attached to the pressing member attaching portion (4a) and the lid body (5) is closed. As shown in the figure, the lid engaging claws (3b) of the pressing member (3) are engaged with the lid (5), and the pressing member (3) moves the coil spring portion (2a) of the torsion coil spring (2). The restoring force of) urges the box body outward, that is, in the engagement direction, so that the lid body cannot be disengaged. Also, the arm (2d) of the torsion coil spring (2) is pushed down in the direction of the arrow by the rib (5a) of the lid as shown in Fig. 3, and the lid is urged in the opening direction. ing. Then, as shown in FIG. 4 (b), when the pressing portion (3c) of the pressing member (3) is pressed against the restoring force of the coil spring portion (2a), the engagement with the lid is released, and the lid is released. The body is lifted upward by the restoring force of the arm (2d) of the torsion coil bar (2). At the same time, the pressing member returns to the origin by the restoring force of the coil spring portion (2a). As described above, the torsion coil spring has two functions at the same time, that is, the function of urging the pressing member in the engaging direction and the function of urging the lid in the opening direction. Therefore, the lid can be easily opened and lifted by simply pressing the pressing member. In addition, since the torsion coil spring is used, unlike the U-shaped elastic plate and button made of synthetic resin, the opening and closing operability is good, and the settling does not occur due to long-term use or repeated opening and closing.

Incidentally, the mounting position of the pressing member is not limited to the above-mentioned embodiment, and it may be mounted on the side surface of the box opening or at an appropriate position of the opening of the lid, and the number thereof is not limited. Also, by changing the material of the torsion coil spring, the diameter of the wire, the length and angle of the arm, the magnitude of the torsion moment and the bending moment of the arm can be adjusted, and the weight of the lid and the engaging force can be changed. Can respond.

[0009]

[Effect of the device]

 If the distribution board according to the present invention is used, the lid can be opened / closed and lifted with one touch. Moreover, since the spring does not settle due to long-term use or repeated opening and closing, there is no need to replace the pressing member or the distribution box. As described above, the present invention can realize a distribution board which is excellent in operability and has high durability.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a pressing member including a torsion coil spring and a torsion coil spring.

FIG. 2 is an explanatory view showing how the pressing member is attached to the box body.

FIG. 3 is an explanatory view of a pressing member attached to the box body.

FIG. 4 is an explanatory view showing an engaged state and a disengaged state of the distribution box.

FIG. 5 is an explanatory diagram of a conventional distribution board that is disengaged using a tool.

FIG. 6 is an explanatory diagram of a conventional distribution board that lifts a handle to release the engagement.

FIG. 7 is an explanatory diagram of a conventional distribution board that lifts a handle to release the engagement.

FIG. 8 is an explanatory diagram of a conventional distribution board that is disengaged by a button operation.

FIG. 9 is an explanatory diagram of a button and a U-shaped elastic plate used in a conventional distribution board.

[Explanation of symbols]

(1) ・ ・ Switchboard, (2) ・ ・ Torsion coil spring, (2a) ・ ・
Coil spring part, (2b), (2d) ・ ・ Arm, (2c), (2e) ・ ・ Hook, (3) ・ ・ Pressing member, (3a), (3e) ・ ・ Projection part, (3b)
・ ・ Claws, (3c) ・ ・ Pressing parts, (3d) ・ ・ Shafts, (3f) ・ ・ Ribs,
(4) ・ ・ Box, (4a) ・ ・ Pressing member mounting part, (4b) ・ ・ Bearing, (4c) ・ ・ Coil spring part accommodation space, (5) ・ ・ Lid, (5a) ・ ・ Rib , (6), (7), (8), (9) ・ ・ Conventional distribution board, (6a) ・ ・ Hole, (7a), (8a) ・ ・ Handle, (9a) ・ ・ Button, ( 9b) ・ ・ Engagement claw, (9c) ・ ・ U-shaped elastic plate.

Claims (1)

[Scope of utility model registration request] 1. A distribution board in which a main circuit breaker and a plurality of branch circuit breakers are housed in a distribution box composed of a box and a lid, and the lid is openably and closably fitted to the box. An opening / closing mechanism provided with a torsion coil spring composed of a coil spring portion and an arm is provided at a pressing member having a lid engaging claw at an appropriate position of any one of the body and the lid, and the box body is provided with the above-mentioned mechanism. With the lid body fitted, the lid body is biased in the opening direction by the restoring force of the arm body and the pressing member is biased in the lid body engaging direction by the restoring force of the coil spring portion. Characteristic distribution board.