JPS6211144Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is used for the internal wiring of electrical equipment, electronic equipment, etc., and is an electrical connection between the outer box and the inner device of a meter whose inner device can be taken out and put in the outer box. The present invention relates to a support structure for a folded ribbon cable that can be freely extended and contracted, and a folded part of a general electric wire.

BACKGROUND ART In devices such as measuring instruments that have a structure in which an inner device is inserted into and taken out from an outer box, it is necessary to use a cable that can be expanded and contracted when connecting the inner device and the outer case. In this case, the cable is folded in several layers in a zigzag pattern, and the cable is stored in the folded state and the cable is stretched in the extended state with adjacent bent portions spaced apart. Conventionally, there are various types of supports for the bent portion of this type of ribbon cable, but these have the drawbacks that they require a large number of parts as a ribbon cable holder and that it is difficult to assemble the holding member for a wide ribbon cable. exist.

In addition, the ribbon cable requires flexibility due to its structure, but in order to ensure this property, it is necessary to limit the current capacity and withstand voltage of the cable, for example, it is limited to 0.5A to 1A and 100V to 150V. Put it away. For this reason, ribbon cables cannot be used to connect the internal power supply, and cannot supply power of, for example, 100VAC or 220VAC.

Therefore, in view of the above-mentioned drawbacks, the present invention reduces the number of parts, centralizes the function as a ribbon cable support, and facilitates assembly. Furthermore, it also facilitates the holding and assembly of general electric wires such as power feed lines. The purpose of this invention is to provide a support structure for a bent cable portion.

In order to achieve this purpose, the present invention includes two wall plates that are spaced apart and arranged side by side in accordance with the folded thickness of the ribbon cable, and a spacing between the two wall plates that corresponds to the width of the ribbon cable. two support plates that bridge the two wall plates at both ends in the longitudinal direction and are erected in the vertical direction perpendicular to the longitudinal direction; a curved locking portion that restricts the vertical movement of a bent portion of a cable other than the ribbon cable on at least one of the surfaces of the ribbon cable; The penetrating guide portion is formed of synthetic resin, and the curved locking portion can be expanded and bent when locking the other cable.

Here, an embodiment of the present invention will be described with reference to the drawings. FIGS. 1 and 2 show an embodiment of the support structure of the cable bending part according to the present invention. In FIG. 1, two wall plates 1a each having a length slightly wider than the width of the cable 2 are arranged and spaced apart from each other in correspondence with the folding thickness of the cable 2 as a support 1 at a portion where the cable is folded. This wall plate 1a is for keeping the cable 2 parallel before and after the bending part so as to keep the folded cable 2 folded, and is for preventing the cable 2 from bulging before and after the bending part. Two support plates 1b are formed at both ends of the two wall plates 1a in the longitudinal direction to bridge the gap between the wall plates 1a and to be vertically erected at right angles to the longitudinal direction. The lower ends of these two supporting plates 1b are on the same plane as the lower end of the wall plate 1a, and the upper ends thereof protrude from the wall plate 1a. Two protrusions 1c and 1d are formed on the supporting plate 1b at the top and bottom on the surfaces facing each other. The protrusions 1c and 1d are locking parts that lock the bent portion of the cable 2, and both ends of the bent portion of the cable 2 in the width direction are located between the protrusions 1c and 1d. The upper protrusion 1c is for preventing the bent part of the cable 2 from coming out (upper side), and the lower protrusion 1d is for preventing the bent part of the cable 2 from going inside (lower side). belongs to. Therefore, the protrusions 1c and 1d which are the locking parts
is for positioning the bent portion of the cable 2 despite expansion and contraction of the cable 2. The support plate 1b itself is made of an elastic synthetic resin so that it can be bent in order to attach the bent portion of the cable 2.

Mutually opposing surfaces of the support plate 1b, that is, the protrusions 1
At least one of the two support plates 1b has a curved portion on the opposite side to the surface where the cables 1b and 1d are provided, for positioning the bent portion of the cable 2a, which is a ribbon cable. A locking portion 3 is formed. This curved locking part 3
is a fishhook shape with a gap at the top,
A power supply cable 2a is inserted through this gap. This curved locking portion 3 is for locking and holding the bent portion of the cable 2a.
This is to restrict vertical movement due to expansion and contraction of a.

A guide portion 4 is provided below the curved locking portion 3 at a location corresponding to the wall plate 1a of the support plate 1b. This guide section 4 has a hole through which the cable 2a passes, and is used to maintain and hold the folded cable 2a in parallel. It goes without saying that the size of the hole in this guide portion 4 can be changed depending on the thickness of the cable 2a. On the side shown in Figure 1, wall plate 1
Although the guide part 4a and the side part of the guide part 4 are formed flush with each other, it is also possible to make the guide part 4 slightly larger depending on the thickness of the cable 2a.

For convenience of explanation, each part of the support 1, that is, the wall plate 1
a, the support plate 1b, the protrusions 1c and 1d, the curved locking part 3, and the guide part 4 have been described separately, but they can be formed integrally, and can be integrally molded of elastic synthetic resin. .

Here, a method for fitting the cables 2 and 2a will be explained. The bent cable 2 is attached to the wall plate 1
The cable 2 is inserted between the protrusions 1c and 1d and is inserted between the protrusions 1c and 1d.In order to fit the cable 2, the support plate 1b made of elastic synthetic resin is flexed to widen the width between the protrusions 1c and 1d. Position it between 1d. Similarly bent cable 2a
is passed through the hole in the guide part 4 and fitted into the gap in the widened curved locking part 3.

FIG. 2 shows the state of connection between the outer case and the inner device when the support body 1 shown in FIG. 1 is applied. Here, 5 is an outer box, 6 is an inner device, and connectors 7a and 7b of the inner device 6 are connected to a ribbon cable 2 folded in a zigzag manner and one end of the cable 2a,
The other end is connected to the outer box 5.

As explained in the embodiments above, according to the present invention, the ribbon cable can be easily assembled by providing a support body having a guide part and a curved locking part in addition to the wall plate and the support plate. In addition to the fact that the number of parts used as a holder is reduced and not increased, for example, the power supply cable can also be held in a flexible manner, which eases restrictions on current capacity and withstand voltage, making it possible to connect to a power supply, which is advantageous in terms of mounting. The cable is held securely by the guide section, making mounting and assembly easy.Also, it is possible to electrically connect the power line and the signal line separately, allowing for leeway in changing the internal unit configuration. Ta.

[Brief explanation of the drawing]

Figures 1a and 1b show an embodiment of the present invention; a is a perspective view of the cable attached to the support; b is a sectional view of the support; and Figures 2a and b are the supports according to the present invention. It is a cross-sectional view of the body applied between the outer box and the inner device, and a is a cross-sectional view taken along the line A-B in figure b. In the drawing, 1a is a wall plate, 1b is a support plate, 2, 2a
3 is a cable, 3 is a curved locking portion, and 4 is a guide portion.

Claims (1)

[Scope of utility model registration request] two wall plates arranged side by side and spaced apart corresponding to the folded thickness of the ribbon cable; and two walls at both ends in the longitudinal direction of the two wall plates with a gap corresponding to the width of the ribbon cable. Two support plates are installed vertically perpendicular to the longitudinal direction to bridge the plates, and the ribbon cable is attached to at least one of the opposing surfaces of the two support plates. A curved locking portion that restricts the vertical movement of the bent portion of the other cable, and a guide portion below the curved locking portion through which the other cable passes through are formed of synthetic resin. . A support structure for a cable bending portion, which allows the curved locking portion to expand and flex when locking the other cable.