JP3767999B2 - Slide switch for electrical equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a slide switch for an electric device that reciprocates a slider to switch a movable contact between an on position and an off position.
[0002]
[Prior art]
A slide switch that moves a movable contact to an on position and an off position by a slider needs to press the movable contact to the fixed contact by the slider. The movable contact pressed by the slider contacts the fixed contact at the on position to turn on the switch.
[0003]
In order for the slider to press the movable contact against the fixed contact of the base, the conventional slide switch is provided with sliding claws 1A that protrude on both sides of the slider 1 as shown in the sectional view of FIG. ing. The sliding claw 1A slides on a sliding slit 3 provided on the base 2, and presses the movable contact 4 provided on the lower surface against a fixed contact (not shown).
[0004]
[Problems to be solved by the invention]
The slide switch shown in FIG. 1 can press the movable contact 4 connected to the slider 1 to the fixed contact of the base 2 with the sliding claw 1 </ b> A and the sliding slit 3. However, in the slide switch having this structure, it is necessary to provide both the sliding claw 1A and the sliding slit 3 on both sides of the slider 1, and it is difficult to design the entire width narrowly. For this reason, when it accommodates in the inside of a narrow case, a restriction | limiting is received in an attachment part. Particularly, since it is necessary to provide sliding claws and sliding slits on both sides of the slider, for example, it becomes difficult to dispose the slider close to the side surface of the case.
[0005]
Furthermore, as shown in FIG. 1, the slider 1 for sliding the sliding claws 1 </ b> A provided on both sides to the sliding slit 3 has a drawback that it is difficult to design it so that it can be moved lightly. This is because it is necessary for the slider to strongly press the movable contact against the fixed contact with the sliding claws and sliding slits on both sides so as not to cause poor contact.
[0006]
The present invention has been developed for the purpose of solving such drawbacks. An important object of the present invention is to provide a slide switch of an electric device that can be conveniently mounted in a narrow case or the like and can move a slider lightly.
[0007]
[Means for Solving the Problems]
The slide switch of the electrical device of the present invention includes a base 2 on which a pair of fixed contacts 5 are mounted, and an on position that is slidably disposed on the base 2 and contacts the pair of fixed contacts 5. The movable contact 4 is moved to an off position away from the fixed contact 5, and connected to the movable contact 4 to move the movable contact 4 to an off position and an on position, and at the on position or from the on position to the off position. And a slider 1 for pressing the movable contact 4 against the fixed contact 5.
[0008]
The slider 1 has a sliding claw 1 </ b> A connected to the base 2. The sliding claw 1 </ b> A is guided by a sliding slit 3 provided on the base 2, and connects the slider 1 to the base 2 so as to reciprocate. The slider 1 moves the movable contact 4 between the on position and the off position.
[0009]
Further, in the slide switch according to the first aspect of the present invention, the sliding claw 1A is provided on one side of the slider 1, and the guide rib 6 is provided on the bottom surface so as to protrude. On the other hand, the base 2 is provided with a bottom slit 7 that slidably guides the guide rib 6 in parallel with the sliding slit 3. In the slider 1, the sliding claw 1A on one side is guided by the sliding slit 3 and the guide rib 6 on the bottom surface is guided by the sub slit, and the movable contact 4 is moved to the on position and the off position.
[0010]
And the guide rib 6 which protrudes in the bottom face of the slider 1 is inserted in the through-hole 8 provided in the movable contact 4, and the movable contact 4 is sandwiched and connected between the bottom face and the base 2. Yes.
[0011]
In the slide switch according to claim 2 of the present invention, the slider 1 is provided with a pressing projection 9 protruding upward. The pressing protrusion 9 is in contact with the inner surface of the case 10 and presses the movable contact 4 against the fixed contact 5.
[0012]
Furthermore, the slide switch according to claim 3 of the present invention presses the pressing projection 9 with the case 10 when the movable contact 4 is moved to the ON position. When the movable contact 4 is moved to the off position, the pressing convex portion 9 does not contact the case 10 in order to move the slider lightly.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. However, the embodiment described below exemplifies a slide switch for embodying the technical idea of the present invention, and the present invention does not specify the slide switch as follows.
[0014]
Further, in this specification, in order to facilitate understanding of the scope of claims, the numbers corresponding to the members shown in the examples are referred to as “the scope of claims” and “the means for solving the problems”. It is added to the member shown by. However, the members shown in the claims are not limited to the members in the embodiments.
[0015]
FIG. 2 shows a slide switch mounted on an electric razor. The slide switch can be attached to an electric device other than an electric razor.
[0016]
The slide switch 11 in this figure is attached to a razor body 12 of an electric razor. The razor body 12 is provided with a switch knob 13 on the surface of the body case 10 for reciprocating a built-in slider (not shown). When the switch knob 13 is moved up and down, the slide switch is turned on and off. The electric razor shown in the figure is turned on when the switch knob 13 is moved up and turned off when the switch knob 13 is moved down.
[0017]
3 and 4, the slide switch includes a switch knob 13, a crankshaft 14 that is rotated by moving the switch knob 13 up and down, and a rotary arm 15 that is rotated by being connected to the crankshaft 14. The slider 1 is moved up and down by the rotating arm 15, the movable contact 4 connected to the slider 1 and moved to the on position and the off position, and the base 2 closes and is fixed in parallel. And a pair of fixed contacts 5.
[0018]
The switch knob 13 is mounted in a recess provided on the surface of the main body case 10 so as to be movable up and down. The switch knob 13 has hook projections (not shown) on both sides. This hooking convex part is guided by hooking guides provided on both sides of the inner surface of the concave part provided in the main body case 10 so that the switch knob 13 is connected so as not to be pulled out into the concave part and reciprocating. Yes. Further, the switch knob 13 is provided with a drive slit 16 in the lateral direction on the inner surface in order to be connected to the crankshaft 14. The drive slit 16 is inserted so that a pin provided at the tip of the crank arm of the crankshaft 14 can slide. When the switch knob 13 of this structure moves up and down, the crank pin is slid on the drive slit 16 to rotate the crank shaft 14.
[0019]
The crankshaft 14 is inserted into a shaft hole provided through the main body case 10 so as to be rotatable. The crankshaft 14 is watertightly connected to the shaft hole of the main body case 10 via a packing (not shown). The crankshaft 14 is attached to the recess of the main body case 10 so as not to come off with the switch knob 13 attached to the surface. The crankshaft 14 is connected to the crankshaft 14 by inserting the square shaft provided at the center into the main body case 10 and inserting the square shaft into the center of the rotating arm 15. The square axis has a rectangular cross-sectional shape.
[0020]
The turning arm 15 is attached to the base 2 so as to be rotatable. The rotation arm 15 is provided with a square hole that is connected so as not to rotate the square axis at the center. Further, a pin connected to the lateral slit 17 of the slider 1 is provided at the tip of the arm.
[0021]
The slider 1 is connected to a base 2 so as to reciprocate up and down in the drawing. The slider 1 has a substantially Z-shaped cross section and a mounting surface 1a that is connected by being sandwiched between the movable contact 4 and the base 2, and is connected at right angles to the mounting surface 1a. The connecting surface 1b is connected to the connecting surface 1b and the arm surface 1c is connected to the connecting surface 1b at a right angle.
[0022]
The mounting surface 1a extends vertically and is provided with guide ribs 6 on the bottom surface. The guide rib 6 passes through a through hole 8 provided in the movable contact 4 and is inserted and guided so as to be slidable in a bottom slit 7 provided in the base 2. The guide rib 6 slides on the bottom slit 7 and the slider 1 is reciprocated. Further, the mounting surface 1 a protrudes from the upper surface which is the opposite surface of the guide rib 6 and is provided with a pressing convex portion 9. The pressing projection 9 has an upper end approaching the inner surface of the main body case 10. When the slider 1 moves the movable contact 4 to the on position, the pressing convex portion 9 is pressed by contacting the inner surface of the main body case 10. The slider 1 pushed by the main body case 10 presses the movable contact 4 against the fixed contact 5 to eliminate the contact failure. The pressing convex portion 9 is not pressed by the main body case 10 when the movable contact 4 moves to the off position. As described above, if the pressing protrusion 9 of the slider 1 is not pressed by the main body case 10 at the off position of the movable contact 4 and the pressing protrusion 9 is pressed by the main body case 10 at the on position, the sliding is achieved. There is an advantage that the movable contact 4 can be reliably electrically connected to the fixed contact 5 by lightly reciprocating the child 1. This state can be realized as an inner surface of the main body case 10 facing the pressing convex portion 9 as an inclined surface. However, it can also be designed such that the inner surface of the main body case 10 always presses the pressing protrusion 9.
[0023]
As shown in the cross-sectional view of FIG. 5, the connecting surface 1 b is provided with a sliding claw 1 </ b> A protruding on the opposite surface facing the pressing protrusion 9. The sliding claw 1 </ b> A slides on a sliding slit 3 provided on the base 2 and is connected to the base 2 so as not to come out of the slider 1. As shown in FIG. 6, the sliding claws 1A are separated from each other and provided in two rows. The sliding claw 1 </ b> A has a lower end formed into a hook shape, and a portion protruding from the hook is guided to the sliding slit 3. In FIG. 6, the sliding claw 1A provided at the right end is provided with slits on the left side, and the left sliding claw 1A is provided with slits on both sides so that it can be somewhat elastically deformed. Since the slider 1 of the sliding claw 1A that is elastically deformed is slightly deformed when the guide rib 6 is inserted into the bottom slit 7, the slider 1 can be easily connected to the base 2.
[0024]
The arm surface 1 c of the slider 1 opens a lateral slit 17 to connect the pin at the tip of the rotating arm 15. When the rotating arm 15 is rotated, the pin at the tip slides in the horizontal slit 17 and the slider 1 is moved up and down.
[0025]
The movable contact 4 is a metal plate that can be elastically deformed. As shown in FIG. 4, the movable contact 4 has a shape in which a through hole 8 for connecting to the slider 1 is opened at the upper part, and the lower part is branched into two to come into contact with a pair of fixed contacts 5. The through hole 8 is substantially equal to the outer shape of the guide rib 6 of the slider 1 and is connected to the slider 1 at a fixed position. In FIG. 4, when the movable contact 4 is moved upward, it contacts a pair of adjacent fixed contacts 5 to turn on the switch, and when it is moved downward, the right fixed contact in the figure. 5 no longer touches and turns off. In other words, in this figure, the movable contact 4 has the raised position as the on position and the lowered position as the off position.
[0026]
The base 2 has a pair of fixed contacts 5 fixed at a position where the movable contact 4 is moved. In the illustrated fixed contact 5, the right fixed contact 5 is shortened up and down, and the left fixed contact 5 is elongated vertically. Therefore, when the movable contact 4 rises, it contacts both the fixed contacts 5, and when it moves down, it contacts only the left fixed contact 5.
[0027]
The electric razor shown in FIG. 2 has a razor body 12 provided with a slide switch, and an outer cover composed of a cap 18 and an outer case 19 is detachably connected thereto. Further, a battery case 20 is connected to the lower portion of the razor body 12 in a detachable manner. An outer case 19 that is an outer cover is connected to the lower side of the razor body 12, and the cap 18 is attached to the razor body 12 so as to insert almost the entire razor body 12.
[0028]
The razor body 12 has an outer blade 21 detachably attached to the upper end thereof, and is built in the inner surface of the outer blade 21 so as to reciprocate while the inner blade 22 is elastically pressed. As shown in the exploded perspective view of FIG. 3, the razor main body 12 includes a main body case 10, a lid case 23 inserted and connected to the opening of the main body case 10 in a watertight manner, and a base connected to the lid case 23. A base 2, a motor 24 mounted on the base 2, and an inner cutter base 25 that is driven by the motor 24 and reciprocates are provided.
[0029]
When the slide switch 11 is turned on, the electric shaver having this structure can be shaved by rotating the motor 24 and vibrating the inner blade 22. When the slide switch 11 is turned off, the rotation of the motor stops.
[0030]
The slide switch 11 mounted on the electric razor moves the switch knob 13 up and down to rotate the crankshaft 14, and the slider 1 via the rotating crankshaft 14 and the rotating arm 15. Reciprocate. Since the slide switch having this structure can be connected to the main body case 10 so that the crankshaft 14 can be rotated, it is suitable for a watertight structure. This is because the rotation shaft of the crankshaft 14 can be easily made into a watertight structure by packing. However, a switch that converts the reciprocating motion of the switch knob into a vertical movement by the crankshaft and the rotating arm tends to be heavy. Since the slide switch of the present invention can move the slider lightly, it has the feature that the switch knob can be moved lightly when used in the switch of this structure. However, although not shown, the slide switch of the present invention has a structure in which the slider is directly connected to the switch knob, or the slider is directly connected to the reciprocating switch knob and is reciprocated by the switch knob. You can also.
[0031]
【The invention's effect】
The slide switch for the electric razor according to the present invention has a feature that it can be conveniently mounted in a case of a narrow electric device. This is because the sliding claw is provided only on one side of the slider that moves the movable contact to the on position and the off position. In addition, the slide switch of the present invention has an advantage that the slider can be moved lightly because no slide claw is provided on both sides of the slider. In addition, the slider is provided with a sliding claw on one side and a guide rib on the bottom, and moves to a position determined by the sliding claw and the guide rib. There is also a feature that allows the switch to be turned on so that no occurrence occurs.
[0032]
Furthermore, a guide rib for moving the slider in a predetermined posture is inserted into the through hole of the movable contact, and the movable contact is connected to the slider. For this reason, there is a feature that the movable contact can be connected to the slider with a simple structure by using the guide rib together with the convex portion for connecting the movable contact.
[0033]
Furthermore, the slide switch according to claim 2 of the present invention is provided with a pressing projection protruding above the slider, and the inner surface of the case is brought into contact with the pressing projection so that the pressing projection and the case are movable. Press the contact against the fixed contact. For this reason, there exists the characteristic which a movable contact can contact a fixed contact reliably and can prevent poor contact.
[0034]
Furthermore, the slide switch according to claim 3 of the present invention, when the movable contact is moved to the ON position, and presses the pressing convex portion on the inner surface of the case, when the movable contact is moved to the off position, the pushing projection Is not pressed by the case, so that the contact failure can be resolved by moving the slider lightly.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a conventional slide switch. FIG. 2 is an exploded perspective view of an electric razor that is an electric device equipped with the slide switch of the present invention. FIG. 3 is an exploded perspective view of a razor body of the electric razor shown in FIG. 4 is an exploded perspective view of a slide switch mounted on the razor body shown in FIG. 3. FIG. 5 is a cross-sectional view of a slide switch portion mounted on the razor body shown in FIG. 3. FIG. Front view of the slider in the direction of arrow A [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Slider 1A ... Sliding claw 1a ... Mounting surface 1b ... Connection surface 1c ... Arm surface 2 ... Base 3 ... Sliding slit 4 ... Moving contact 5 ... Fixed contact 6 ... Guide rib 7 ... Bottom slit 8 ... Through-hole DESCRIPTION OF SYMBOLS 9 ... Pressing convex part 10 ... Case 11 ... Slide switch 12 ... Razor main body 13 ... Switch knob 14 ... Crankshaft 15 ... Rotating arm 16 ... Drive slit 17 ... Lateral slit 18 ... Cap 19 ... Outer case 20 ... Battery case 21 ... Outer blade 22 ... Inner blade 23 ... Lid case 24 ... Motor 25 ... Inner blade base

Claims (3)

A base (2) on which a pair of fixed contacts (5) are mounted, and an on position that is slidably disposed on the base (2) and contacts the pair of fixed contacts (5), Or a movable contact (4) moved to an off position away from both fixed contacts (5) and connected to the movable contact (4) to move the movable contact (4) to an off position and an on position , At least in the on position, comprising a slider (1) for pressing the movable contact (4) against the fixed contact (5),
The slider (1) has a sliding claw (1A) connected to the base (2), and this sliding claw (1A) is inserted into the sliding slit (3) provided on the base (2). The slider (1) is connected to the base (2) so that it can reciprocate, and the slider (1) moves the movable contact (4) between the on position and the off position. In the slide switch of the electrical equipment configured to
The slider (1) has a sliding claw (1A) on one side and a guide rib (6) protruding from the bottom surface, and this guide rib (6) is connected to a through-hole provided in the movable contact (4) ( 8) , the movable contact (4) is sandwiched between the bottom surface and the base (2) and the base (2) is slidably guided through the guide rib (6). 7) is provided in parallel with the sliding slit (3),
Slider (1) guides sliding claw (1A) on one side to sliding slit (3), guide rib (6) on the bottom to sub-slit, and movable contact (4) to ON position and OFF position A slide switch for an electrical device that is configured to move. The slider (1) has a pressing projection (9) protruding upward, and this pressing projection (9) is in contact with the inner surface of the case (10), and the movable contact (4) is fixed to the fixed contact (5). The slide switch for an electric device according to claim 1 , wherein the slide switch is pressed against the slide. The slide switch for an electric device according to claim 2 , wherein the pressing convex portion (9) is pressed against the case (10) at the on position of the movable contact (4) and is not pressed against the case (10) at the off position.

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