JP2001093391A - Tilted switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tilted switch superior in opening/closing durability to a high capacity and careful about environment. SOLUTION: A tilted switch comprises a housing 1 having an approximately columnar or cubic space 2, at least one spherical body 7 in which the space 2 is arranged in a rotationally movable manner, and a contact mechanism storage portion 3 arranged in parallel to the space 2, wherein a movable armature 12 and a fixed armature 14 formed with spring members are opposed to each other in the contact mechanism storage portion 3 and an actuator 8 turned with the movement of the spherical body 7 is arranged with a rotationally movable shaft 9 having a single face 10 protruded in the space 2. The spherical body 7 is moved to turn the actuator 8, causing the thrust of the movable armature 12 to contact the fixed armature 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilt switch provided for detecting a tilt of a device and controlling power supply.

[0002]

2. Description of the Related Art Conventionally, a tilt switch attached to an opening / closing drive portion of a circuit breaker, kitchen equipment, or the like to control power supply is different from a fall detection switch, and is required to repeatedly open and close in a specific direction. A mercury switch as shown in FIG.

[0003]

The tilt switch using mercury has a serious environmental problem, and is particularly unsuitable for food handling equipment such as kitchen equipment. In addition, when repeated opening and closing durability is required, there is a problem in the opening / closing capacity and durability performance of the conventional tilt detection type tilt switch. The present invention has been made in order to solve such a problem and to provide a tilt switch which is excellent in durability and environmentally friendly.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a housing having a substantially cylindrical or cubic space, and disposing the space so as to be rotatable in a substantially linear direction. At least one or more rotating bodies, and a contact mechanism accommodating section provided in parallel with the space, and a movable contact piece and a fixed contact piece formed by a spring member are disposed in the contact mechanism accommodating section so as to face each other. Then, an operating element which is rotated by the movement of the rotating body is provided with a rotating shaft, and a part thereof is arranged so as to protrude into the space. Also,
The fixed contact piece is supported by a stopper that supports the fall in place, and the actuator is disposed so as to project into the space at an obtuse angle with the side surface of the space.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the present invention, an operating element having a rotating shaft is rotated by the movement of a rotating body, and a spring member disposed oppositely is brought into contact with the rotating member so that the weight of the rotating body is smoothly applied to the spring member. Since the transmitted and stable contact force can be ensured, it is possible to configure a tilt switch having a relatively large opening / closing capacity and excellent durability performance.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS This embodiment will be described below with reference to the drawings. FIG. 1 is a front sectional view showing a tilt switch according to a first embodiment of the present invention (clockwise tilted state), FIG. 2 is an exploded perspective view thereof, and FIG. 3 is a sectional view showing its counterclockwise tilted state. is there.

[0007] In these figures, a housing 1 and a cover 18, each of which has a housing divided into two sides, are provided with a horizontally long space portion 2, and a contact mechanism housing portion 3 formed in parallel with the space portion 2 with a partition wall 4 interposed therebetween. A spherical body 7 as a rotating body is provided in the space 2.
The contact mechanism housing part 3 is stored in a state where the movable contact piece 12 and the fixed contact piece 14 in the form of a leaf spring are held in a cantilever shape.
Are disposed opposite to each other. A movable contact 13 is provided at a substantially middle portion of the movable contact piece 12 and at a tip end of the fixed contact piece 14, respectively.
And the fixed contact 15 are welded to form a contact mechanism corresponding to a relatively large switching capacity.

Further, faston terminals 16 and 17 provided separately are led out of the housing, and a portion of the fixed end side of the movable contact piece 12 and the fixed contact piece 14 is resilient by utilizing the elasticity of a spring member. Although they are in contact with each other, it is also possible to extend the movable contact member and the fixed contact member so as to also serve as external terminals.

The space 2 and the contact mechanism housing 3
An actuator 8 having a rotating shaft 9 is rotatably arranged at a substantially intermediate portion of the armature with the rotating shaft 9 locked to the partition wall 4. The actuator 8 has one side 10 projecting into the space 2 at an obtuse angle and the pressing portion 11 provided on the other abuts against the movable contact piece 12. It is arranged so that the piece 12 is pressed and the fixed contact piece 14 comes into contact with each contact.

In this embodiment, three spheres 7 are accommodated in the space 2, but the spheres 7 on both sides serve as auxiliary weights when on and off, respectively. The number of spheres 7 can be increased or decreased to meet the use conditions. That is, if contact pressure is required to increase the opening / closing capacity, the number of spheres 7 can be increased, and if the opening / closing capacity is at a signal detection level, one sphere 7 can be used.

FIG. 4 is a moment diagram based on the configuration of the main parts of the first embodiment, and shows a state in which it is inclined about 30 degrees counterclockwise. The component force W in the moving axis direction of the force generated by the weight of the sphere 7 in the moving axis direction is a state in which the sphere 7 is sandwiched between the upper wall of the space 2 and the actuator 8 in a wedge shape.
A vector of a large pressing force N is applied to the actuator 8, and the pressing moment of F is transmitted from the operator 8 to the tip of the movable contact piece 12. Since the contact force P satisfies P ≒ F (L1 / L2) from the positional relationship between the point of action and the point of force of the movable contact piece 12, the contact force P, which far exceeds the weight of the sphere 7, always provides a stable contact. This is an excellent feature that a large switching capacity can be ensured while maintaining the same.

Further, since the contact mechanism housing 3 is provided in parallel with the space 2 which is a space for moving the sphere 7, the beam of the movable contact piece can be lengthened without increasing the outer shape of the tilt switch. Yes, the moment can be used effectively.

Furthermore, since the rotating shaft 9 is provided on the operating member 8, the rotating moment of the spherical body 7 to the operating member 8 is transmitted to the movable contact piece 12 without attenuating, and the operating member 8 is returned upon returning. The operation can be smoothed.

FIG. 5 is a front sectional view showing a clockwise tilt state of a second embodiment of the tilt switch according to the present invention, and FIG. 6 is a front sectional view showing its counterclockwise tilt state.
FIG. 7 is a plan view thereof. Compared to the first embodiment, the sphere 27 is composed of one and the external connection is
0, and the arrangement of the fixed contact piece 34 and the movable contact piece 32 is different.

More specifically, the fixed contact piece 34 and the movable contact piece 32 arranged in parallel in the contact mechanism accommodating section 23 are cross-opposed only in the vicinity of the contact portion, and the fixed contact piece 34 is protruded from the base 21 so as to fall. The structure is such that the stopper 39 supports at a fixed position. The fixed contact portion is a fixed contact piece 34.
Is bent to form a sharp edge.

With such a configuration, the contact mechanism housing portion 23 can be space-saving and the tilt switch can be made more compact, and a variation in the bending dimension of the fixed contact piece 34 can be absorbed to achieve a high-precision tilt switch. Can be provided. Book second
Although the embodiment is configured as a tilt switch for a minute rating, the contact wiping amount after the contact can be sufficiently secured, so that high contact reliability can be maintained.

FIG. 8 shows a rotary body 47 of the tilt switch according to the present invention.
It is an application development example of. Although a cylindrical body is used instead of the spherical body, a barrel-shaped rotating body is used, or a guide groove is formed in the cylindrical body, and the cylindrical body is rotated along a rail protruding from the space ( Various developments are conceivable, such as none of them. FIG. 9 is a perspective view showing a main part of a third embodiment of the tilt switch according to the present invention. A rotating shaft 89 is formed on the rotating body 87 and is rotatably connected by a connecting plate 90. Further, various connecting means such as linking the rotating body with magnetism can be considered. By connecting the rotatable members 87 rotatably as described above, the components in the moving directions of all the rotatable members 87 can be added and transmitted to the actuator. As compared with the above, the tilt switch body can be made more compact, and reliable contact switching and contact force can be improved.

[0018]

As described above, according to the present invention, the following effects can be obtained. (1) a housing having a space portion, at least one or more rotating bodies arranged so as to be able to rotate the space portion in a substantially linear direction, and a contact mechanism housing portion arranged in parallel with the space portion; A movable contact piece and a fixed contact piece formed by a spring member are disposed opposite to each other in the contact mechanism accommodating portion, and an operating member which is rotated by the movement of the rotating body is provided with a rotating shaft. A part of the armature is projected into the space, and the movable contact piece is pressed by the rotation of the actuator to come into contact with the fixed contact piece.
A contact force far exceeding the weight of the rotating body can be secured, and a stable contact can be always maintained to secure a large opening / closing capacity. (2) Since the movable contact piece and the fixed contact piece formed by the spring member are disposed opposite to each other in the contact mechanism accommodating portion arranged in the space, the length of the spring member can be efficiently arranged. Thus, the moment can be effectively used without increasing the outer shape of the tilt switch, and a tilt switch with high contact reliability can be configured. (3) An operator that is rotated by the movement of the rotating body is provided with a rotation shaft provided, and a part of the operator is projected into the space, and the movable contact piece is moved by the rotation of the operator. Since the pressing member is configured to be in contact with the fixed contact piece, the rotating moment of the rotating body to the actuator is transmitted to the movable contact piece without attenuating and the returning operation of the actuator at the time of return is smooth. Can be. (4) Since the fixed contact piece is configured to be brought into contact with the stopper portion that supports the falling down at a fixed position, a variation in the bending dimension of the fixed contact piece can be absorbed, and a highly accurate tilt switch can be provided. . (5) Since the actuator is projected into the space at an obtuse angle with the side of the space, reliable operating characteristics can be obtained even when the weight of the rotating body is small. (6) Since the rotating body composed of a plurality of rotating bodies rotatably connected by the connecting means is provided, the component forces in the moving directions of all the rotating bodies are added and transmitted to the actuator. Therefore, the tilt switch body can be made more compact, and the contact switching can be reliably performed and the contact force can be improved as compared with the case where the rotating body is not connected.

[Brief description of the drawings]

FIG. 1 is a front sectional view (in a clockwise inclined state) showing a first embodiment of a tilt switch of the present invention.

FIG. 2 is an exploded perspective view showing a first embodiment of the tilt switch of the present invention.

FIG. 3 is a front sectional view showing a tilt switch according to a first embodiment of the present invention (in a counterclockwise tilt state).

FIG. 4 is a sectional view showing a moment diagram based on the configuration of main parts of the first embodiment of the tilt switch of the present invention.

FIG. 5 is a front sectional view showing a tilt switch according to a second embodiment of the present invention (in a clockwise tilt state).

FIG. 6 is a front sectional view (in a counterclockwise inclined state) showing a second embodiment of the tilt switch of the present invention.

FIG. 7 is a plan view showing a second embodiment of the tilt switch of the present invention.

FIG. 8 is an application development example of the rotating body of the tilt switch of the present invention.

FIG. 9 is a perspective view showing a main part of a tilt switch according to a third embodiment of the present invention.

FIG. 10 is a front sectional view showing a conventional mercury switch.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 41 Housing 2, 22 Space part 3, 23 Contact mechanism accommodating part 4 Partition wall 5, 25 Mounting hole 6 Rotation bearing part 7, 27 Spherical body 8, 28, 48 Actuator 9, 29 Rotation axis 10, 30 One side 11 , 31 Pressing part 12, 32 Movable contact 13 Movable contact 14, 34 Fixed contact 15, 35 Fixed contact 16, 17 Faston terminal 18, 38 Cover 21 Base 36 Connector terminal 39 Stopper 40 Connector 47, 87 Rotating body 89 Rotating shaft 90 Connecting plate

Claims (4)

[Claims] 1. A housing having a substantially cylindrical or substantially cubic space, at least one or more rotating bodies disposed so as to be rotatable in a substantially linear direction, and a contact arranged in parallel with the space. A mechanism housing portion, and a movable contact piece and a fixed contact piece formed by a spring member are provided in the contact mechanism housing portion so as to face each other, and an actuator rotated by the movement of the rotating body is provided. A rotating shaft is formed on the actuator, and a part of the actuator is disposed so as to protrude into the space, and the movable body is moved to rotate the actuator, thereby pressing the movable contact piece. And contacting the fixed contact piece with the fixed contact piece. 2. The tilt switch according to claim 1, wherein the fixed contact piece is supported by a stopper for supporting the fall in a fixed position. 3. The tilt switch according to claim 1, wherein the actuator protrudes into the space at an obtuse angle with a side surface of the space. 4. The tilt switch according to claim 1, comprising a plurality of rotating bodies rotatably connected by connecting means.