JP2006136038A - Structure of leaf spring - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a distribution board of simple structure in which work can be carried out surely and easily. <P>SOLUTION: In the invention distribution board, hooking recesses 7 are formed on both side faces of an electric apparatus 2, an apparatus fixing plate 1 is provided with a hooking piece 3 and a leaf spring 5, the leaf spring 5 bends a fixing portion 6 and a hooking portion 8, a raised portion 10 urged upward is formed substantially in the center of the fixing portion 6, the electric apparatus 2 is pushed in after the hooking piece 3 is hooked to the hooking recess 7 and then the hooking portion 8 of the leaf spring 5 is hooked to the hooking recess 7, thus fixing the electric apparatus 2 to the fixing plate 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a structure of a leaf spring for mounting an electrical device to a mounting plate in a distribution board in which a device mounting plate is arranged on a box and an electrical device such as a breaker is placed on the device mounting plate. is there.

  As shown in FIGS. 6 to 9, the breaker 31, which is conventionally called a JIS agreement type, has a mounting groove 32 formed in the lower part of the side surface and is hooked on a hooking piece 34 provided on a device mounting plate 33 of a distribution board. After that, the other end was pushed in and hooked on the leaf spring 35 attached to the device attachment plate 33 to fix the breaker 31. The shape of the leaf spring 35 is provided by curving the attachment portion 36 to form an engagement portion 37 that engages with the attachment groove 32, and the engagement portion 37 is urged downward.

When the breaker 31 was removed, the upper end of the leaf spring 35 was pushed, the engagement with the mounting groove 32 was released, and the operator lifted the device by hand.
JP 2002-247716 A

  However, according to the above technique, the dimensions of the mounting groove 32 differ depending on the breaker 31, and when the engaging portion 37 formed on the leaf spring 35 is engaged with the mounting groove 32 as shown in FIG. There was a case where a gap was formed and it could not be fixed firmly.

  Further, when the breaker 31 is removed, the breaker 31 must be lifted while pushing the leaf spring 35, so that the operator uses both hands, and there is a disadvantage that workability is poor.

  Therefore, the present invention has an object to provide a distribution board that can be reliably and easily operated with a simple structure. The structure is provided with hook recesses on both side surfaces of an electrical device, and on the device mounting plate. Is provided with a hook piece and a leaf spring. The leaf spring forms a curved portion at the attachment portion and the hook portion, and a cut-and-raised portion that is biased upward is formed at a substantially central portion of the attachment portion. After hooking the piece, the electric device is pushed in, and the hook portion of the leaf spring is hooked in the hook recess to fix the electric device to the mounting plate.

  The leaf spring structure of the distribution board according to the present invention is provided with hook recesses on both side surfaces of the electric device, and the device mounting plate is provided with a hook piece and a leaf spring, and the plate spring includes the attachment portion and the hook portion. In the middle of the mounting part, a cut-and-raised portion that is biased upward is formed. After hooking the hook into the hooking recess, the electrical device is pushed in, and the hooking part of the leaf spring is moved into the hooking recess. Since the electric device is hooked and fixed to the mounting plate, the electric device can be easily attached to and detached from the mounting plate. In addition, when the electrical device is attached by a leaf spring, the hooking portion formed on the leaf spring is biased downward and the cut-and-raised portion is biased upward, so that the electrical device is securely fixed. The backlash at the time can be prevented. The electrical device can also be removed by pushing the upper end of the leaf spring to release the engagement of the hook, and the electrical device jumps up and rides on the cut-and-raised portion.

  The purpose of providing a distribution board with a simple structure that can securely and easily attach and detach electrical equipment was realized by simply changing the shape of the leaf spring without increasing the number of parts.

  The structure of the distribution board according to the present invention will be described with reference to the accompanying drawings of FIGS.

  The distribution board is formed by arranging a device mounting plate 1 in a box and placing an electrical device such as a breaker 2 on the device mounting plate 1. The device mounting plate 1 is provided with a hook piece 3 and a mounting hole 4. A leaf spring 5 is attached to the attachment hole 4, and the breaker 2 is fixed by the hook piece 3 and the leaf spring 5.

  The hook piece 3 is formed by cutting the device mounting plate 1 and raising it to a substantially L-shaped cross section. Moreover, the shape of the leaf | plate spring 5 is the attachment part 6 inserted in the attachment hole 4 provided in the apparatus attachment plate 1, the hook part 8 hooked in the hook recessed parts 7 and 7 provided in the side surface of the breaker 2, The operation unit 9 to be pushed by hand when the breaker 2 is removed is curved from a single plate. A cut-and-raised portion 10 is provided at a substantially central portion of the attachment portion 6.

  In order to attach the breaker 2, first, one of the hook recesses 7 is hooked on the hook piece 3 of the device mounting plate 1, the other end of the breaker 2 is pushed, and the hook recess 7 is hooked and fixed to the hook 8 of the leaf spring 5. At this time, the hooking portion 8 of the leaf spring 5 is urged substantially downward, and the breaker 2 is securely fixed. Further, the cut-and-raised 10 is urged upward so as to push up the bottom surface of the breaker 2, and the breaker 2 is fixed by being pushed downward by the hook 8 and upward by the cut-and-raised 10. 5 is also securely fitted and fixed to the hook recess 7 for mounting the device, which differs slightly depending on the device.

  To remove the breaker 2, the operating portion 9 of the leaf spring 5 is pushed downward by hand, and the engagement of the hook portion 8 of the leaf spring 5 with the hook recess 7 is released. Since the cut and raised 10 pushes up the bottom surface of the breaker 2, when the engagement is released, the breaker 2 jumps upward and gets on the leaf spring 5. The breaker 2 can be removed with one hand, and workability is improved in a distribution board configured to contain many breakers 2.

  A plate spring for fixing a device such as a breaker is cut and raised, and pushed upward when the breaker is attached, so that the breaker can be securely attached and the leaf spring is engaged to remove the breaker. When the combination is released, the cut-and-raise jumps up the breaker, so that it is possible to improve workability when it is necessary to attach and remove many breakers with a large distribution board or the like.

It is explanatory drawing which shows the shape of the leaf | plate spring used for the distribution board which concerns on this invention. (Example 1) It is explanatory drawing which showed the attachment state of the electric equipment of the distribution board which concerns on this invention. (Example 1) It is a principal part enlarged view in FIG. (Example 1) It is explanatory drawing which shows the attachment operation | movement of the distribution board which concerns on this invention. (Example 1) It is a principal part enlarged view in FIG. (Example 1) It is explanatory drawing which shows the structure of the leaf | plate spring in background art. It is explanatory drawing which showed the attachment state of the electric equipment in background art. It is a principal part enlarged view in FIG. It is explanatory drawing which showed the attachment operation | movement of the electric equipment in background art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Apparatus mounting plate 2 Breaker 3 Hook piece 4 Mounting hole 5 Leaf spring 6 Mounting part 7 Hook recessed part 8 Hook part 9 Operation part 10 Cut and raise

Claims (1)

  A structure of a leaf spring for mounting the electrical device to the mounting plate in a distribution board in which a device mounting plate is arranged in a box and an electrical device such as a breaker is placed on the device mounting plate, A hook recess is provided on both side surfaces of the electric device, and a hook piece and a leaf spring are provided on the device mounting plate. The leaf spring is formed by bending the mounting portion and the hook portion, and A cut-and-raised portion that is urged upward is formed in the substantially central portion, and after hooking a hook piece into the hook recess, the electric device is pushed in, and a hook portion of a leaf spring is hooked into the hook recess so that the electric device is A plate spring structure characterized by being fixed to a mounting plate.

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