JPH0218523B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a switch operating mechanism.

[Background Art] Generally, in the operation mechanism of this type of switch, as shown in FIG. 1, there is an operation plate 4 that opens and closes the contacts in conjunction with the contacts in the switch body, and an operation plate 4 that is in the off position. Since the lock handle 6 for operating the lock means that holds the operation plate 4 in that position is provided at a separate position, it is difficult to determine whether the lock handle 6 is in the lock position or not. There is a problem in that it is difficult to determine where the object is located.

[Object of the Invention] The present invention has been made in view of the above points, and its main purpose is to provide a switch that makes it easy to determine whether the lock handle is in the locked position or the unlocked position. The purpose is to provide an operating mechanism.

[Disclosure of the Invention] Hereinafter, embodiments of the present invention will be described based on the drawings. The operating mechanism of the switch according to the present invention is an operation in which the switch body 2 disposed inside the casing 1 is slid along the outer circumferential surface of the casing 1 between an on position where the switch body 2 is turned on and an off position where the switch body 2 is turned off. The plate 4 has a lock that slides along the outer circumferential surface of the casing 1 between a lock position that prohibits the operation plate 4 from sliding when the operation plate 4 is in the off position and an unlock position that allows the operation plate 4 to freely slide. In the lock position, the lock handle 6 fits into a notch formed at a part of the periphery of the operation plate 4, so that the outer periphery of the operation plate 4 and the lock handle 6 fit together. The outer periphery of the operating plate 4 and the lock handle 6 are formed in a shape that is smoothly continuous, and in the unlocked position, the outer periphery of the operating plate 4 and the outer periphery of the lock handle 6 are discontinuous as they protrude from the notch.
This embodiment shows an example in which the present invention is applied to an electric shaver.

As shown in FIG. 5, the casing 1 includes the front half 1
1 and a rear half body 12, the upper end of the casing 1 has an outer cutter block 1.
3 is detachably attached. The upper end of the outer cutter block 13 is open, and the outer cutter 14 is attached thereto in a semicylindrical shape. Motor 1 is inside casing 1.
5. A secondary battery 16 that serves as a power source for the motor 15; a charging circuit 17 that steps down and rectifies a commercial power source to charge the secondary battery 16; A driver 19 that converts rotational motion of the shaft into reciprocating motion, a switch body 2 that disconnects and disconnects the connection between the motor 15 and the secondary battery 16, and the like are provided. An inner cutter 21 is connected to the driver 19 through an opening 20 formed at the upper end of the casing 1, and the inner cutter 21 slides on the inner peripheral surface of the outer cutter 14 and reciprocates to be introduced through the outer cutter 14. The outer blade 14 is designed to cut off the hair that has been removed. In the figure, 22 is a packing that covers the opening periphery of the opening 20 provided at the upper end of the casing 1.
At the lower end of the casing 1, there is a plug blade block 2 having a plug blade 23 that protrudes from the casing 1 so as to be able to move forward and backward.
4 is disposed, and the charging circuit 17 is connected to the plug blade 23 so that charging from a commercial power source can be performed while the plug blade 23 protrudes from the casing 1. Motor 1 inside casing 1
5, the secondary battery 16, the charging circuit 17, and the switch main body 2 are attached to the mounting base 25 and arranged at fixed positions within the casing 1. Also, outside the casing 1, there is an operating plate 4 that interlocks with the contacts 3 of the switch body 2, a lock position that locks to that position when the operating plate 4 is in the off position, and an unlocking position that releases the lock to the operating plate 4. A lock handle 6 interlocked with the lock means 5, which is movable between positions, is exposed. The switch body 2 is composed of a pair of fixed contact plates 3a fixed to the mounting base 25 and a movable contact plate 3b fixed to the back surface of the operation plate 4.

The operation plate 4 and the lock handle 6 are located in a recess 3 formed in the front half 11 of the casing 1.
0. At the bottom of the recess 30 are a pair of first projections protruding from both left and right ends of the back of the operation plate 4.
A pair of first guide holes 32 into which the guide hooks 31 are inserted, a second guide hole 34 into which a pair of second guide hooks 33 protruding from both left and right ends of the back surface of the lock handle 6 are inserted, and the movable contact plate 3b. An opening window 35 is formed corresponding to the opening window 35 . First and second guide hooks 31, 3
3 are first and second guide holes 32, 3, respectively.
The distal end portion engages with the opening periphery of 4, and the operation plate 4 and lock handle 6 are held in the casing 1 in a vertically movable state. When the operating plate 4 is at the lower position within the movement range, the fixed contact plate 3a and the movable contact plate 3b are separated, the switch body 2 is in the OFF state, and the operating plate 4 is in the OFF state.
When is in the upper position, the switch body 2 is in the on state. That is, in the movement range of the operating plate 4, the lower position is the off position and the upper position is the on position. The operation plate 4 is formed in a pentagonal shape, with two left and right sides 50 and 51 running vertically, and an upper side 52 running horizontally. The upper side 52 and the left side 53 are substantially orthogonal and the ends are continuous,
A notch is formed in the corner formed between the upper side 52 and the right side 51, and the right side 51 and the upper side 52 are continuous via the oblique side 53. A lock handle 6 is disposed corresponding to the oblique side 53, and the lock handle 6 is formed into a substantially right triangular shape. When the oblique side 53 of the operating plate 4 and the oblique side 54 of the lock handle 6 match, the two sides of the lock handle 6 sandwiching the right angle are continuous on a straight line with the upper piece 52 and the right side 51 of the operating plate 4, respectively.
When the lock handle 6 is in the lower position in the movement range, the lock means 5 is in the locked state, while when the lock handle 6 is in the upper position, the lock means 5 is in the unlocked state. Therefore, as shown in FIG.
When the operation plate 4 is locked with both the operation plate 4 and the lock handle 6 in the lower position, the lock handle 6 fills the above-mentioned notch in the operation plate 4, and the outer periphery of the operation plate 4 and the lock handle 6 are in contact with each other. The outer periphery is smoothly continuous. On the other hand, as shown in FIG.
When the switch body 2 is at the lower position and the switch body 2 is in the OFF state, and only the lock handle 6 is at the upper position and the lock is released, the peripheral edges of the operating plate 4 and the lock handle 6 become discontinuous. You can tell at a glance that the device is unlocked. Furthermore, as shown in FIG.
When both the lock handle 6 and the lock handle 6 are in the upper position, the lock means 5 is released and the switch body 2 is turned on.

The locking means 5 will be explained in more detail below. As shown in FIG. 6, on the back surface of the operation plate 4, a lock protrusion 8 with an arcuate upper surface is protruded at a position corresponding to the opening window 35, and on the upper surface of the lock protrusion 8 is a lock lever 7. One end is correspondingly arranged. The lock lever 7 is formed in a substantially V-shape, and a lock protrusion 8 corresponds to the top thereof. A casing 1 is attached to the tip of one leg of the lock lever 7.
A shaft hole 36 is formed in the inner peripheral surface of the upper part of the lock lever 7, into which the shaft pin 9 is inserted. An engaging protrusion 38 is provided to protrude. Therefore, the lock lever 7 can freely swing left and right around the shaft pin 9, and when the lock handle 6 is lowered, the lock lever 7
is located on the right side in FIG. 6 and on the upper surface of the lock protrusion 8 to prevent the operation plate 4 from moving upward. At this time, the movable contact plate 3b is separated from the fixed contact plate 3a, and the contacts 3 are in an open state. On the other hand, when the lock handle 6 is in the upper position, the lock lever 7 rotates and separates from the top surface of the lock protrusion 8, as shown in FIG. 8, so that the operating plate 4 can freely move up and down. Ru. In this way, the lock handle 6, the lock lever 7, and the operation plate 4 constitute the lock means 5, and in response to the vertical movement of the lock handle 6, the lock means 5 moves to the lock position where the operation plate 4 is held in the OFF position. The operating plate 4 can be freely switched between the unlocked position and the unlocked position. In the locked position, as shown in FIG. 6, the locking point between the lock handle 6 and the lock lever 7 and the locking point between the lock lever 7 and the operating plate 4 are located on the opposite side of the shaft pin 9 in the left-right direction. With this configuration, when an attempt is made to move the operating plate 4 upward when the locking means 5 is in the locked position, a downward force is applied to the lock handle 6, which affects the movement of the operating plate 4. This will ensure that the locked state is maintained. An elastic piece 39 whose tip end bulges toward the lock handle 6 extends from the top of the lock lever 7, and a click pin 40 is provided within the casing 1 to protrude from the tip of the elastic piece 39. When the locking means 5 is in the locking position, the tip of the elastic piece 39 leaves the click pin 40 as shown in FIG.
When in the unlocked position, it engages with the click pin 40 as shown in FIG. Therefore, a click action is applied to the movement of the lock lever 7 during the transition between the locked state and the unlocked state, and the operational feeling of the lock handle 6 is improved.

[Effects of the Invention] As described above, the present invention provides an operation in which the switch body disposed inside the casing is slid along the outer circumferential surface of the casing between the on position where the switch body is turned on and the off position where the switch body is turned off. The lock handle includes a plate and a lock handle that slides along the outer circumferential surface of the casing between a lock position that prohibits the operation plate from sliding when the operation plate is in the off position and an unlock position that allows the operation plate to freely slide. In the above-mentioned lock position, the lock handle fits into the notch formed at a part of the circumference of the operating plate, so that the outer circumferential edge of the operating plate and the outer circumferential edge of the lock handle are smoothly continuous. When the lock handle is in the lock position, sliding movement of the operation plate is prohibited. When the lock handle is in the unlocked position, a portion of the outer periphery of the operating plate and a portion of the outer periphery of the lock handle smoothly connect, and when the lock handle is in the unlocked position and the operating plate is slidable, the operating plate is in the off position. If so, the outer periphery of the operating plate and lock handle will be discontinuous. That is, when the operating plate is in the OFF position, whether the operating plate is slidable or not can be determined depending on whether the outer periphery of the operating plate and the outer periphery of the lock handle are continuous or discontinuous. This has the advantage of being self-explanatory.

[Brief explanation of drawings]

FIG. 1 is a front view showing a conventional example, FIG. 2 is a front view showing a state in which the operation plate is locked in an embodiment of the present invention, and FIG. 3 is a front view showing the same in the unlocked state. Figure 4 is a front view of the same operation plate as above when it is in the on state, Figure 5 is an exploded perspective view of the same as above, and Figure 6 is the same as the above with the locking means in the locked position with the rear half removed. Partial back view, Figure 7 is a sectional view taken along line X-X in Figure 6, Figure 8
The figure is a partial back view with the rear half removed when the locking means is in the unlocked position. 1 is a casing, 2 is a switch body, 3 is a contact, 4 is an operating plate, 5 is a locking means, and 6 is a lock handle.

Claims (1)

[Claims] 1. An operation plate that slides along the outer circumferential surface of the casing between an on position where the switch body disposed inside the casing is turned on and an off position where the switch body is turned off; The lock handle is provided with a lock handle that slides along the outer circumferential surface of the casing between a lock position that prohibits the operation plate from sliding when it is in the off position and an unlock position that allows the operation plate to freely slide. In the lock position, the notch formed at a certain point on the periphery of the operating plate is fitted into a shape that is smoothly continuous between the outer periphery of the operating plate and the outer periphery of the lock handle. Now, there is a switch operation mechanism characterized in that the outer circumferential edge of the operating plate and the outer circumferential edge of the lock handle protrude from the notch and are discontinuous. 2. The switch operating mechanism according to claim 1, wherein the operating plate and the lock handle are movable in the same direction.