JPH0332022Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention provides a locking device for various types of switches, such as push-button type switches, which can smoothly and reliably perform switching operations, have a simple structure, and prevent operational errors. This invention relates to a locking device for a switch that is intended to be manufactured at low cost.

Conventional switch locking devices use springs or leaf springs, etc., and have a complex structure in which a push button is pressed once, the engagement position is changed, and the push button is pressed again to switch on and off. Although it has been used for a long time, the structure is complicated and malfunctions are likely to occur.
Another disadvantage was that the number of manufactured parts increased.

The present invention is a switch locking device which improves the drawbacks of the conventional one and has a simple structure and a reliable switching operation. A substantially parallelogram-shaped engaging body 6 is rotatably attached to the actuating body 5 in the space by a shaft 9, and the corners 7 and 7' of the obtuse angle portions of the engaging body 6 are formed into arc shapes, and the acute angle portions are formed into circular arc shapes. The engaging side has the engaging corners 8, 8' formed at acute angles, and vertically engages the engaging body 6 raised to the side of the locking plate 14 provided on the base plate 1 above the engaging body 6. A substantially L-shaped engaging portion 4 that locks the engaging corner portions 8 and 8' of the engaging body 6 raised to the lower part of the locking plate 14.
An engaging protrusion 2 and an engaging corner 8, which guide the arc-shaped corners 7, 7' to the base plate 1 located below the engaging body 6, are provided.
8' is provided, and the engaging protrusion 3 is provided in a circular arc shape at a position where the engaging body 6 that has descended vertically is tilted at an angle to lock the engaging corner parts 8, 8' to the engaging part 4. The engaging protrusion 2 is provided to guide the corner portions 7, 7', and the engaging body 6, which has descended vertically, rises to an angle greater than the angle at which the engaging corner portions 8, 8' are locked to the engaging portion 4. Engagement protrusions 3 are provided to guide the engagement corners 8, 8' to positions that prevent them from tilting.

In the figure, 10 is a spring for returning the operating body 5, and 11 is a push button switch.

Since the present invention is configured as described above, when the actuating body 5 is lowered, the locking plate 1 provided above the base plate 1
The engaging body 6 is vertically engaged with the engaging side portion 13 of 4.
vertically descends, the arc-shaped corner 7 or 7' comes into contact with the engagement protrusion 2, and the engagement body 6 is guided by the engagement protrusion 2.
is in a tilted state, and when the actuating body 5 is raised,
The engaging body 6 rises in an inclined state together with the operating body 5,
The engaging corner part 8 or 8' of the engaging body 6 comes into contact with the engaging part 4 and becomes locked, stopping the rising of the engaging body 6 and locking it. When the actuating body 5 is lowered again, it will be in the tilted state. The engaging body 6 also descends, and the corner 7 or 7' comes into contact with the engaging protrusion 2 and is further tilted toward the engaging body 6, and the engaging corner 8 or 8' comes into contact with the engaging protrusion 3 and becomes engaged. The engaging body 6 rotates to a substantially horizontal position under the guidance of the mating protrusions 2 and 3, and when the actuating body 5 is raised, the engaging body 6
is tilted significantly, so the engaging corner portion 8 or 8' does not engage with the engaging portion 4, but contacts the engaging side portion 13 of the locking plate 14 and rotates the engaging body 6 vertically. move,
Since the side part of the engaging body 6 can be vertically engaged with the engaging side part 13 of the locking plate 14 and then released, the rotation of the engaging body 6 can be properly guided and locking and release can be performed smoothly and reliably. can be done.

Furthermore, in the present invention, since the corners 7 and 7' of the obtuse angle portion of the engaging body 6 are formed in a circular arc shape, the engaging body 6 is guided by the circular corner parts 7 and 7' that contact the engaging protrusion 2. It can be rotated smoothly without any difficulty, and the engaging body 6
An engaging protrusion 2 for guiding the arcuate corners 7, 7' and an engaging protrusion 3 for guiding the engaging corners 8, 8' are provided on the base plate 1 at a lower position, and the engaging body is vertically lowered. 6
The arcuate corners 7, 7' are placed at positions where the angles are raised to tilt the engaging corners 8, 8' to the engaging portions 4.
A position that prevents the vertically descended engaging body 6 from rising and tilting beyond the angle at which the engaging corner portions 8, 8' are locked to the engaging portion 4. Since the engaging protrusion 3 that guides the engaging corner parts 8, 8' is provided on the holder, the engaging body 6 can be reliably rotated to an angle at which the engaging corner parts 8, 8' are locked to the engaging part 4.
Moreover, since the engaging portion 4 is formed into a substantially L-shape to widen the range in which the engaging corner portions 8, 8' come into contact, and the engaging corner portions 8, 8' are formed at acute angles. , the engaging corner portions 8, 8' can be reliably engaged with the engaging portion 4.

Hereinafter, the present invention will be described with reference to the drawings. Two engaging protrusions 2 and 3 are provided below a substrate 1 with an interval between them, and an L-shaped engaging portion 4 is provided above one side of the engaging protrusion 2. When the actuating body 5 is pushed down, the semicircular arc-shaped corner 7' of the engaging body 6, which is pivoted to the actuating body 5 through a shaft 9, is attached to the engaging protrusion 2 as shown in FIG. When they make contact, the engaging body 6 becomes slightly slanted, and then when the actuating body 5 is pulled up by hand or when the actuating body 5 is raised by the return spring 10, the engaging body 6 becomes slanted (see Fig. 5). , the engaging corner 8 engages with the L-shaped engaging part 4, and the tip of the engaging corner 8 locks with the L-shaped part of the engaging part 4, and the shaft 9 cannot move to the right. While the actuating body 5 is being raised, the engagement corner portion 8 is securely engaged with the engagement portion 4, and the engagement between the two is firm.

Next, when the actuating body 5 is lowered, the engaging body 6 is in an oblique state as shown in FIG. , the engaging body 6 rotates in the horizontal direction, and as shown in FIG. When the engaging body 6 protrudes outward from the left side of the engaging part 4 and further rises, the engaging body 6 becomes vertical in its longitudinal direction and rises on the left side of the engaging part 4.

When the actuating body 5 is raised or lowered in this way, the engaging body 6 rotatably attached to the actuating body 5 moves to the fourth position.
As shown in FIGS. 7 to 7, the switch can be rotated to engage or disengage, and the actuating body 5 can be used as a push button to ensure and easily switch, and the structure is simple, robust, and inexpensive. Not only can it be mass-produced, but it is also suitable for manufacturing a switch of the same size as a conventional switch by using a synthetic resin engaging body with a width of about 2 mm and a length of 4 mm, for example.

Note that the device of the present invention can be applied not only to switches but also to switching devices for other devices. FIG. 9 shows another embodiment in which a recess 12 is provided in place of the engaging protrusions 2 and 3.

[Brief explanation of the drawing]

Figures 1, 2, and 3 are partially cutaway perspective views showing an example of the implementation of the present invention, and Figures 4, 5, 6, and 7 are front views showing the same operating state. figure,
FIG. 8 is a partially cutaway perspective view of a switch provided with the present invention, and FIG. 9 is a front view showing another embodiment. 1 is a substrate, 2 and 3 are engagement protrusions, 4 is an engagement portion, 5
is an actuating body, 6 is an engaging body, 7 and 7' are semi-circular corners, 8 and 8' are engaging corners, 9 is a shaft, 10 is a return spring, 11 is a push button switch, and 12 is a recess.

Claims (1)

[Scope of utility model registration request] The actuating body is provided with a space on the board so as to be movable up and down, and within this space, an approximately parallelogram-shaped engaging body is rotatably attached to the actuating body, and the corners of the obtuse angle portions of the engaging body are shaped like an arc. The engaging side portion is formed with an acute angle, and the engaging body vertically engages the raised engaging body on the side of the locking plate provided on the base plate above the engaging body. At the same time, a substantially L-shaped engaging part is provided at the lower part of the locking plate to lock the engaging corner of the raised engaging body, and the arc-shaped corner is guided to the base plate located below the engaging body. An engagement protrusion and an engagement protrusion that guide the engagement corner are provided, and an arc-shaped arc is provided at a position where the engagement body that has descended vertically rises and tilts the engagement corner to an angle that locks the engagement corner. An engaging protrusion is provided to guide the corner, and the engaging corner is located at a position to prevent the vertically descended engaging body from rising and tilting beyond the angle at which the engaging corner is locked to the engaging portion. A locking device for a switch, characterized in that it is provided with an engaging protrusion that guides the switch.