JPH0525268Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to electrical parts for mounting on rails, such as electromagnetic contactors and electromagnetic relays.

[Prior Art] FIG. 6 is a partial cross-sectional view showing a conventional rail-mounting electrical component, such as a rail-mounting electromagnetic contactor.
Figure 7 is a cross-sectional view showing the state in which the movable hook is attached to the electrical component for rail attachment, Figure 8 is an explanatory diagram showing the process of attaching the movable hook to the electrical component for rail attachment, and Figure 9 is the electrical component for rail attachment. It is an explanatory view showing a state where a movable hook is attached to a component.

In the figure, 1 is the electrical component main body of the electrical component for rail mounting, 2 is the hook storage groove provided at the bottom of the mounting base 1a of the electrical component main body 1, and 3 is the hook storage groove 2.
A pair of hook receiving pieces 4 are provided facing each other toward the back of the hook storage groove 2, and 4a is a rectangular frame-shaped movable hook formed of slidable plastic, and 4a is a movable hook 4. 5 is a spring locking projection provided on the entrance side at the center of the bottom of the hook storage groove 2, and 6 is a spring locking projection 5 and a movable hook. This is a compression spring that is interposed between the movable hook 4 and biases the movable hook 4 toward the inside of the electrical component body 1. Reference numeral 7 denotes a fixed hook provided at the bottom of the electrical component main body 1 opposite to the movable hook 4.

The conventional rail-mounting electrical component is constructed as described above, and is fitted into the hook storage groove 2 of the electrical component body 1, and is comprised of a movable hook 4 and a fixed hook 7 supported by a pair of hook receiving pieces 3, 3. , the electric component main body 1 is attached to the rails 8 with the rails 8 in between.

[Problems to be solved by the invention] In the conventional rail-mounting electrical component configured as described above, the pair of hook receiving pieces 3, 3 of the electrical component main body 1 and the slide piece 4a of the movable hook 4 are as follows.
It is made of plastic, and since the depth of the electrical components themselves needs to be reduced, the space used for mounting the rail is small, resulting in a thin wall, which poses the problem of being easily damaged by impact.
Further, a pair of hook receiving pieces 3 provided opposite to the hook storage groove 2 provided for supporting the slide piece 4a of the movable hook 4 are provided in a part of the back of the hook storage groove 2. Because it has a movable hook 4
The area A where the slide piece 4a is supported is small;
There was a problem that when the movable hook 4 slid to the outside of the electrical component main body 1, it easily came off. Furthermore,
Since the compression spring 6 is assembled inside the frame-shaped movable hook 4, there is also the problem that assembling the movable hook 4 and the compression spring 6 is troublesome.

This invention was made to solve these problems, and the movable hook attachment part and the movable hook at the bottom of the electrical component body are less likely to be damaged by impact, and the movable hook is less likely to come off from the electrical component body. Moreover, it is an object of the present invention to obtain an electrical component for mounting a rail that allows easy assembly of a movable hook and has a small number of parts.

[Means for Solving the Problems] The rail-mounting electrical component of this invention has one end connected to one side of the electrical component body, the other end contacting the bottom of the electrical component body, and a retaining lock. A movable hook is formed by an L-shaped elastic rail-mounting hook piece having a stop and a plate-shaped metal hook having a tongue piece for preventing removal at approximately the center, and a movable hook is formed on the bottom of the electrical component body for rail-mounting. A hook storage groove is provided in which the other end of the hook piece is stored, a pair of metal hook receiving pieces are protruded toward the outside of opposing sides of the hook storage groove, and the metal hooks are inserted into the hook storage groove to accommodate both sides of the metal hook. When the metal hook is supported by a pair of metal hook receiving pieces, the locking tongue piece of the metal hook is locked to the locking part of the rail mounting hook piece, so that the metal hook is integrally attached to the rail mounting hook piece. This is what I did.

[Function] In this invention, the hook storage groove, which is provided at the bottom of the electrical component body and has the other end side of the rail mounting hook piece that is partially connected to the electrical component body, has an approximately central portion. When a metal hook with a tongue piece for preventing the metal hook from being removed is inserted into the holder, both sides of the metal hook are supported by a pair of metal hook receiving pieces that protrude toward the outside of opposite sides of the hook storage groove. The metal hook is integrally attached to the rail mounting hook piece and a movable hook is formed by locking the tongue piece to the locking part for preventing removal formed on the rail mounting hook piece. Even if the hook is thin, there is no problem in terms of strength, and since the metal hook is thin, the thickness of the metal hook receiving piece can be increased. In addition, the metal hook is supported by a metal hook receiving piece so that it does not move in the width direction within the hook storage groove, and the rail mounting hook is integrally attached to the metal hook. Movement in the width direction of the other end is restricted by a metal hook.

[Example] Fig. 1 is a partial sectional view showing an embodiment of this invention, Fig. 2 is a side view of the electrical parts for rail mounting without the metal hook, and Fig. 3 shows the main parts of the electrical parts for rail mounting. Fig. 4 is a partially enlarged sectional view showing the 3rd section.
FIG. 5 is a cross-sectional view of the bottom of the mounting base 1a taken along the line P--P in the figure, with no metal hook attached. FIG. 5 is an explanatory diagram showing the attachment position of the metal hook. In the figure, the same reference numerals as in the above conventional example indicate the same parts. 2 is a hook storage groove provided in the center of the bottom of the mounting base 1a of the electrical component main body 1 near one side; 3 and 3 are hook storage grooves 2;
A pair of metal hook receiving pieces 2a protruding toward the outside of opposing sides of the hook storage groove 2 are metal hook abutting portions protruding from both sides of the bottom surface of the hook storage groove 2.
Reference numeral 10 denotes an L-shaped elastic member whose one end is connected to the center of one side of the mounting base 1a in the electrical component body 1, and whose other end is in contact with the bottom of the mounting base 1a, that is, arranged in the hook storage groove 2. Mounting base 1 with rail mounting hook piece.
It is molded together with a. 10a is a metal hook support part provided at the other end of the rail attachment hook piece 10, 10b is a rail engaging triangular part formed at the outer end of the metal hook support part 10a, and 10c is a rail attachment hook piece. This is a locking hole for preventing slippage provided approximately at the center of the other end side of 10. Reference numeral 11 indicates a rectangular thin metal hook that is integrally attached to the rail attachment hook piece 10, and reference numeral 11a indicates the metal hook 11.
11b is a screwdriver insertion hole provided near one end of the metal hook 11, and 11c is a tongue piece for preventing the metal hook 11 from falling out by cutting it up approximately in the center.
This is a notch provided at the center of the other end.

In the rail-mounting electrical component configured as described above, the metal hook 11 is attached to the rail-mounting hook piece 10 on the mounting base 1a of the electrical component body 1 with the side having the notch 11c on the tip side. Insert the other end into the hook housing groove 2. Then, both sides of the metal hook 11 are supported by a pair of metal hook receiving pieces 3 protruding from the side surfaces of the hook storage groove 2, and the tongue piece 11a for preventing the metal hook 11 from coming off is used to prevent the rail mounting hook piece 10 from coming off. The metal hook 11 is locked in the locking hole 10c, and is integrally attached to the rail attachment hook piece 10 within the hook storage groove 2 so that it cannot be removed.
B in FIG. 5 shows the area on which both sides of the metal hook 11 are supported. At this time, the tip of the metal hook 11 having the notch 11c is connected to the rail mounting hook piece 1.
0 metal hook support portion 10a. Fifth
C in the figure shows the area on which the tip of the metal hook 11 is supported. Further, both upper surfaces of the metal hook 11 are in contact with metal hook abutting portions 2a provided on the bottom surface of the hook storage groove 2, and both end surfaces of the metal hook 11 are in contact with side surfaces of the hook storage groove 2. In this way, the metal hook 11 is secured to the pair of metal hook receiving pieces 3, 3 so as not to move in the width direction within the hook storage groove 2.
Since the metal hook 11 and the rail attachment hook piece 10 are integrally attached, the movement of the other end side of the rail attachment hook piece 10 in the width direction is controlled by the metal hook 11. Regulated. Therefore, when attaching the electrical component body 1 to the rail 8, the rail attachment hook piece 10 can move to the outside of the electrical component body 1 without wobbling. In addition, since the metal hook 11 is plate-shaped and thin, there is no problem in terms of strength, so the metal hook 11 is formed thin, and the thickness of the metal hook piece 3 that supports the metal hook 11 increases due to its thinness. Mounting stand 1a
The strength of the hook attachment part has been increased. Furthermore, since the only component of the movable hook assembled into the hook storage groove 2 of the mounting base 1a is the metal hook 11, the number of parts is reduced.

[Effects of the invention] As explained above, this invention provides a hook that is provided at the bottom of the electrical component body and has the other end side of the rail mounting hook piece that is partially connected to the electrical component body. When a metal hook having a retaining tongue approximately at the center is inserted into the storage groove, both sides of the metal hook are supported by a pair of metal hook receiving pieces that protrude toward the outside of the opposing sides of the hook storage groove. At the same time, the locking tongue piece of the metal hook is locked to the locking part formed on the rail mounting hook piece, whereby the metal hook is integrally attached to the rail mounting hook piece to form a movable hook. Therefore, there is no problem in terms of strength even if the metal hook is thin, and the thinner the metal hook is, the thicker the metal hook receiving piece becomes, which has the effect of making it less likely to be damaged by impact. In addition, the metal hook is supported by a metal hook receiving piece so as not to move in the width direction within the hook storage groove, and by integrally attaching the rail mounting hook piece to the metal hook,
Since the movement of the other end of the rail mounting hook in the width direction is restricted by the metal hook, the other end of the rail mounting hook piece can move in the width direction without wobbling when the rail is installed. There is. Furthermore, since the only component of the movable hook that is assembled to the bottom of the electrical component body is a metal hook,
It also has the advantage that the number of parts is small and assembly is easy.

[Brief explanation of drawings]

Fig. 1 is a partial sectional view showing an embodiment of this invention, Fig. 2 is a side view of the electrical parts for rail mounting, Fig. 3 is a partially enlarged sectional view showing the main parts of the electrical parts for rail mounting, and Fig. 4 is a partial sectional view showing an embodiment of the invention. The figure is a cross-sectional view showing a metal hook attached to the bottom of an electrical component for rail mounting, Figure 5 is an explanatory diagram showing the mounting position of the metal hook, and Figure 6 is a section showing a conventional electrical component for rail mounting. 7 is a sectional view showing the state in which the movable hook is attached to the electrical component for rail mounting, FIG. 8 is an explanatory diagram showing the process of attaching the movable hook to the electrical component for rail mounting, and FIG. 9 is the rail It is an explanatory view showing a state where a movable hook is attached to an electrical component for attachment. In the figure, 1 is an electric component main body, 2 is a hook storage groove, 3 is a hook receiving piece, 10 is a rail mounting hook piece, 10c is a locking hole for preventing removal, 11 is a metal hook, and 11a is a tongue piece for preventing removal. . In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] In an electric component for rail mounting, which has a fixed hook and a movable hook facing each other on the bottom of the electric component body for attaching the electric component body to the rail, one end is connected to one side of the electric component body, and the other end is connected to the other side. An L-shaped elastic rail mounting hook piece whose end side abuts the bottom of the electrical component body and has a locking part for preventing removal, and a plate-shaped metal hook having a tongue piece for preventing removal approximately in the center. A movable hook is formed, a hook housing groove is provided in the electrical component body in which the other end of the rail mounting hook piece is housed, and a pair of metal hook receiving pieces are protruded from the outside of opposing sides of the hook housing groove. When the metal hook is inserted into the hook storage groove and both sides of the metal hook are supported by a pair of metal hook receiving pieces, the tongue piece for preventing the metal hook from coming off is locked with the locking part for preventing the metal hook from coming off on the rail mounting hook piece. An electrical component for rail mounting, characterized in that a metal hook is integrally attached to a rail mounting hook piece.