JPH0534623U - Switch locking mechanism - Google Patents

Abstract

(57) [Summary] [Purpose] Even when multiple switches are installed close to each other,
It is an object of the present invention to provide a lock mechanism of a switch that can easily fix or release the connection between the operation unit and the contact unit without the other adjacent switches hindering the lock movement. [Structure] A lock ring 5 is provided as a connection lock portion between the operation portion 4 and the contact portion 2. By moving the lock lever 5L provided on the lock ring 5,
The lock protrusion 51 (FIG. 1D) is rotated and fitted into the lock groove 42 (FIG. 1B) of the operation portion 4 to be in a locked state. Since the lock lever 5L is bent in a direction substantially perpendicular to the mounting surface (not shown), a plurality of switches should be provided close to each other without protruding from the outer periphery of the contact portion 2 as shown in FIG. 1E. Is possible.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a switch lock mechanism, and more particularly to a lock lever arrangement structure.

[0002]

[Prior Art]

 A conventional switch locking mechanism will be described with reference to the drawings. As shown in FIG. 3A, there is a switch mounted on the operation panel or the like, which includes an operation unit 4 and a contact unit 2. The operation portion 4 is attached to and fixed in a through hole of an operation panel (not shown), and has a push button portion 43 on its front surface. The contact portion 2 is connected to the connection portion 49 of the operation portion 4. The contact portion 2 has a plurality of terminals 2T, and the conduction state of the terminals 2T is switched according to the operation of the push button portion 43 of the operation portion 4.

In consideration of workability and compatibility of switch attachment, the contact portion 2 can be freely attached and detached to and from the operation portion 4 that is attached and fixed, and can be locked or unlocked. This lock mechanism will be described below. The contact portion 2 is provided with a lock ring 6 as shown in FIG. 3A, and this lock ring 6 has a lock lever 6L. The lock lever 6L is rotatable in the direction of arrow 90 (see Fig. 3A).

For example, when the contact portion 2 is attached to the operating portion 4, the lock lever 6L is positioned in the state shown in FIG. 3B and is connected to the connecting portion 49 of the operating portion 4. As shown in FIG. 3B, an inner protruding portion 21 is formed on the inner surface of the contact portion 2, while an insertion groove 41 is formed in the connecting portion 49 (FIG. 3A). Then, the internal protrusion 21 is fitted into the insertion groove 41 and inserted.

After attaching the contact portion 2, the lock lever 6L is rotated in the direction of arrow 90. FIG. 3C shows a state in which the lock lever 6L is rotated. With the rotation of the lock lever 6L, the lock protrusion 61 housed in the internal protruding portion 21 is positioned so as to be displaced from the internal protruding portion 21. Then, the lock protrusion 61 is fitted into the lock groove 42 (FIG. 3A) formed in the operation portion 4. The lock groove 42 is a lock groove formed integrally with the insertion groove 41. When the lock protrusion 61 is fitted into the lock groove 42, the position of the operating portion 4 is fixed and the operating portion 4 is locked.

To release the locked state, the lock lever 6L is rotated in the direction of arrow 91 from the state shown in FIG. 3C. As a result, the lock protrusion 61 is positioned so as to overlap the internal protrusion 21 (see FIG. 3B), and the lock protrusion 61 and the internal protrusion 21 are slid together in the insertion groove 41 (FIG. 3A). The contact portion 2 can be removed from the operation portion 4. Further, another conventional example of the switch lock mechanism is shown in FIG. The contact portion 2 of this switch has a fixed arm 25 made of an elastic resin. Then, by fitting the projection at the tip of the fixed arm 25 into the fixing hole 45 of the operation section 4, the connection between the contact section 2 and the operation section 4 is fixed. When removing the contact part 2, hold the knob 26 and open the fixed arm 25, and remove the projection at the tip from the fixing hole 45.

[0007]

[Problems to be solved by the device]

 The conventional lock mechanism of the switch has the following problems. Multiple switches may be mounted close to each other on the operation panel. In such a case, the contact portion 2 is also located close to the back surface of the operation panel.

In the lock mechanism of the switch shown in FIG. 3, when the contact portion 2 is removed, it is necessary to position the lock lever 6L in the state shown in FIG. 3C, but the contact portion 2 of another adjacent switch approaches. If this happens, the rotation of the lock lever 6L will be hindered. That is, it becomes difficult to rotate the lock lever 6L to the state shown in FIG. 3C, and there is a problem that the contact portion 2 cannot be easily removed.

The width H4 of the flange portion 44 may be reduced in order to increase the density of the switches on the operation panel. When this width H4 is made smaller than the contact portion 2, the contact portion 2 is extremely close to the back surface of the operation panel, which makes it more difficult to rotate the lock lever 6L.

Also, in the lock mechanism shown in FIG. 4, if another adjacent switch is provided close to the lock mechanism, the fixed arm 25 cannot be expanded by sandwiching the knob portion 26, so that the contact portion 2 can be easily formed. It cannot be removed.

Therefore, according to the present invention, even when a plurality of switches are provided close to each other, another adjacent switch does not hinder the lock movement, and the connection between the operation unit and the contact unit is fixed or The purpose is to provide a lock mechanism for the switch that can be easily unlocked.

[0012]

[Means for Solving the Problems]

 The lock mechanism of the switch according to the present invention is an operation part that is fixed to the mounting surface and performs a predetermined operation from the outside, and a contact part that is connected to the operation part. A contact part that performs contact switching operation in response to an operation, a lock part for fixing the connection between the operation part and the contact part, and has a lock lever. In a lock mechanism of a switch including a lock part for fixing the connection or releasing the fixation, the lock lever of the lock part is provided in a direction substantially vertical to the mounting surface. The feature is that the lock lever is moved while keeping the state.

[0013]

[Action]

 In the lock mechanism of the switch according to the present invention, the lock lever of the lock portion is provided in a direction substantially vertical to the mounting surface. Then, the lock lever is moved while maintaining this vertical state.

Therefore, when fixing or releasing the connection between the operation portion and the contact portion, the lock lever of the lock portion is not positioned parallel to the mounting surface. That is, it becomes possible to move the lock lever while keeping a sufficient distance from the adjacent switch.

[0015]

【Example】

 An embodiment of a lock mechanism of a switch according to the present invention will be described with reference to the drawings. As shown in FIG. 1B, this switch is composed of an operating portion 4 and a contact portion 2. The operation section 4 is attached and fixed to an operation panel or the like (not shown) as an attachment surface, and has a push button section 43 on its front surface.

A contact portion 2 having a built-in contact switching mechanism (not shown) is attached to the connection portion 49 (FIG. 1B) of the operation portion 4. The contact section 2 is provided with a plurality of terminals 2T, and the contact switching mechanism switches the conduction state of the terminals 2T according to the operation of the push button section 43 of the operation section 4. 1B is a plan view and FIG. 1A is a side view showing a state in which the contact portion 2 is attached to the operation portion 4.

The contact portion 2 is provided with a lock ring 5 as a lock mechanism for fixing the connection with the operation portion 4. A front view of this lock ring 5 is shown in FIG. 1C. A lock protrusion 51 is formed in the lock ring 5 toward the inside of the ring hole 59. Further, a lock lever 5L is provided (see FIG. 1B), and the lock ring 5 is rotated by the lock movement of the lock lever 5L in the directions of arrows 90 and 91. In this embodiment, the lock lever 5L is formed by bending the ring surface of the lock ring 5 by approximately 90 degrees. That is, the lock lever 5L is positioned almost vertically to the mounting surface of the operation panel or the like.

FIG. 1D is a front view of the contact portion 2 including the lock ring 5. As shown in the figure, an internal protruding portion 21 is formed in the contact portion 2. When the contact portion 2 is attached to the operation portion 4, first, the lock lever 5L (FIG. 1B) is moved in the direction of the arrow 91, and the lock protrusion 51 is positioned so as to overlap the inner protrusion portion 21 (not shown). Then, in this state, it is attached to the connection portion 49 of the operation portion 4.

As shown in FIG. 1B, an insertion groove 41 is formed in the connection portion 49, and the internal projection 21 and the lock projection 51 of the contact portion 2 are slid and inserted into the insertion groove 41. After attaching the contact portion 2 to the operation portion 4 in this manner, the lock lever 5L is moved in the direction of arrow 90 to be locked (see FIG. 1B). Due to this locking movement, the locking projection 51 is located in a state of being displaced from the internal protruding portion 21 in the contact portion 2. FIG. 1D shows this state.

Then, in this case, the lock protrusion 51 is fitted into the lock groove 42 formed integrally with the insertion groove 41 of the connection portion 49 (see FIG. 1B). By fitting the lock protrusion 51 into the lock groove 42, the connection between the operation portion 4 and the contact portion 2 is fixed. On the contrary, when the lock is released, the lock lever 5L is reversely moved in the direction of arrow 91 to position the lock protrusion 51 so as to overlap the internal protrusion 21, and the contact portion 2 is pulled out.

As described above, the lock lever 5L performs the lock movement with the locking or unlocking. At this time, the lock lever 5L moves while maintaining the vertical state with respect to the mounting surface (not shown). That is, the lock lever 5L is formed by bending the lock ring 5 by approximately 90 degrees, and the lock movement is performed while maintaining this bent state. Therefore, as shown in FIG. 1E (rear view of the contact portion 2), the lock lever 5L does not project from the outer periphery of the contact portion 2 when the lock is moved. In this way, unlike the conventional lock lever 6L (FIGS. 3B and C), the lock lever is not positioned parallel to the mounting surface, so that, for example, as shown in FIG. Even in such a case, the contact portion 2 of the adjacent switch does not hinder the lock movement of the lock lever 5L.

Further, when a plurality of switches are provided, the terminals 2T of each contact part 2 may be connected to a single board to form a single board. In such a case, if an operation through hole 36 is formed in the substrate 35 as shown in FIG. 2B, a locking or unlocking operation can be performed by a driver or the like through the operation through hole 36.

[0023]

[Effect of the device]

 In the lock mechanism of the switch according to the present invention, the lock lever of the lock portion is not positioned parallel to the mounting surface when the connection between the operation portion and the contact portion is fixed or released. That is, it is possible to perform the lock movement of the lock lever in a state in which a sufficient distance is secured between the adjacent switch.

Therefore, even when a plurality of switches are provided close to each other, other adjacent switches do not hinder the lock movement, and the connection between the operation unit and the contact unit is fixed or released. It can be done easily.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of a lock mechanism of a switch according to the present invention.

FIG. 2 is a rear view for explaining a case where a plurality of switches shown in FIG. 1 are provided.

FIG. 3 is a diagram showing a conventional example of a lock mechanism of a switch.

FIG. 4 is a diagram showing another conventional example of the lock mechanism of the switch.

[Explanation of symbols]

 2 ... Contact part 4 ... Operating part 5 ... Lock ring 5L ... Lock lever

Claims (1)

[Scope of utility model registration request] 1. An operation unit fixed to a mounting surface for performing a predetermined operation from the outside, and a contact unit connected to the operation unit, which is equipped with a contact switching mechanism and corresponds to the operation of the operation unit. A contact part that performs a switching operation of contacts, a lock part for fixing the connection between the operation part and the contact part, and has a lock lever, and locks the lock lever to fix the connection, Alternatively, in the lock mechanism of the switch including the lock part for releasing the fixation, the lock lever of the lock part is provided in a direction substantially vertical to the mounting surface, and the lock state is maintained while maintaining the vertical state. The lock mechanism of the switch is characterized in that the lever is locked and moved.