JPH11162296A - Delay switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a delay switch highly reliable in delaying operation and minimized in noise. SOLUTION: In a setting operation by a handle 90 which is an operation part, the arm pressing piece 90b of the handle 90 presses the curved part 50a of an arm 50. The arm 50 is then rotated, the pressed part 26a of a card 26 is pressed by the card pressing part 52 of the arm 50 to press down the card 26, and a sucker 23b is moved according to the movement of the card 26 and attractively held by a body to be sucked 24. The air from the air intake port 26e of the card 26 is penetrated into the space formed between the sucker 23b and the body to be sucked 24 through an air permeable member 32 within an air permeable member press-in part 23d. In the releasing operation of the set by the handle 90, the card 26 is moved forward when the sucking force of the sucker 23b to the body to be sucked 24 becomes lower than the spring force of a return spring 27, a contact spring 70 is pressed up by a contact spring pressing part 26c, and a movable contact 72 is separated from a fixed contact 64a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a delay switch for delaying a load operation.

[0002]

2. Description of the Related Art A delay switch of this type is known, for example, for operating a ventilation fan and a lighting load of a toilet (see Japanese Patent Application Laid-Open No. 61-55825). This conventional delay switch has a control function of turning on a ventilation fan and a lighting load by operating a handle as an operation unit, turning off a lighting load by operating the next operation handle, and turning off the ventilation fan after a predetermined time. is there.

[0003]

However, in the above-mentioned conventional structure, the structure of the delay unit for determining the predetermined time is complicated and the manufacturing cost is high. There were problems such as badness and various noises caused by the delay function of the delay unit.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a delay switch which is low in cost, has high reliability of delay operation, and has low noise.

[0005]

According to a first aspect of the present invention, there is provided an operation unit, a suction cup which moves in conjunction with a setting operation of the operation unit, and a switch which cooperates with the suction cup. A card that opens and closes the mechanism, a sucked body that sucks and holds the moved sucker, a return spring that urges the sucker in a direction in which the sucker moves away from the sucked body, and a terminal to which the switch mechanism is electrically connected; An arm that rotates and moves the card in conjunction with the setting operation of the operation unit. When the operation unit releases the set operation, the suction cup is actuated by the balance between the suction force of the suction cup to the object to be sucked and the spring force of the return spring. It is characterized in that there is a delay time before it is separated from the object to be sucked, the force of the setting operation can be transmitted to the card via the arm, the card can be driven stably, and the suction Adsorption force to adsorbent and Since the delay time is determined by the balance with the spring force of the return spring, a conventional gear is unnecessary, and the configuration is simpler and more reliable than the conventional delay switch having a delay unit, and cost reduction can be achieved. , Noise is reduced. Further, since no gear is required as in the related art, the operation of the operation unit becomes smooth.

According to a second aspect of the present invention, in the first aspect of the present invention, the rotation axis of the arm is formed in a shape which is orthogonal to one diametrical straight line and cut by two planes sandwiching the center. Therefore, even when a parting line is formed on the rotation axis, by forming the parting line on the cut surface, it is possible to eliminate the influence of the parting line on the rotational movement of the arm.

According to a third aspect of the present invention, in the first aspect of the invention, since the arm is formed of POM, frictional resistance between the arm and the operation unit and between the arm and the card can be reduced. Thus, the load required for operating the operation unit can be reduced. The invention of claim 4 is claim 1
In the invention of the above, the arm has a pair of rotating shafts, and the rotating shafts are asymmetric with respect to an intermediate point between the two rotating shafts, so that the inserting direction of the arm when inserting the rotating shaft of the arm into the bearing portion. Mistakes can be eliminated.

According to a fifth aspect of the present invention, in the first aspect of the present invention, a light emitting element is connected between the pair of terminals via a conducting means when the set of the operating portion is released, and a printed wiring on which the light emitting element is mounted. The operating section has means for radiating the light of the light emitting element to the outside, and has a press-fitting section on the rear side where the printed wiring board is pressed into a space other than the operating space of the arm, so that the operating section is set. In the state where the release operation is performed, the light emitting element is turned on, and the position of the operation unit can be recognized even when the surroundings are dark such as at night, and the printed wiring board on which the light emitting element is mounted can be moved while securing the operation space of the arm. The light-emitting element can be positioned on the rear side of the operation unit, and the light-emitting element is positioned.

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, the energizing means comprises a leaf spring formed by bending a plate-shaped conductive member, and the leaf spring is fixed to the printed wiring board to emit light. A fixed end portion connected to the fixed end portion and an energizing portion formed between the fixed end portion and the other end portion, the energizing portion being in contact with one of the terminals at the time of a setting release operation of the operation portion, Since the surface on the side facing one of the terminals is bent so as to have a smooth convex curved shape, conduction between the leaf spring and one of the terminals can be reliably performed at the time of the operation of releasing the set of the operation unit. As a result, the light-emitting element can be reliably turned on.

According to a seventh aspect of the present invention, in the sixth aspect of the present invention, since the operating portion is provided with a positioning rib for positioning the other end of the leaf spring, the position of the other end of the leaf spring can be adjusted. The displacement can be prevented, and the occurrence of a trouble such as a short circuit between terminals due to a displacement of the other end of the leaf spring can be prevented. According to an eighth aspect of the present invention, in the first aspect of the present invention, since the operating portion is formed integrally with the arm pressing portion for pressing the arm, the position accuracy and strength of the arm pressing portion can be improved.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) As shown in FIGS. 1 to 4, a case 1 of a delay switch according to the present embodiment includes a body 10 made of synthetic resin and a cover 80 made of synthetic resin. Are formed in a substantially U-shaped assembly frame 40.

As shown in FIG. 4, shoulders 80b protrude from both ends of the cover 80, and recesses 80c into which the leg pieces 40d of the assembly frame 40 are fitted are formed on the side surfaces of the shoulders 80b. ing. On the other hand, on the front end side of the body 10, a concave portion 18 is formed in a portion corresponding to the concave portion 80c, into which the leg piece 40d of the assembly frame 40 is fitted.
Therefore, when the cover 80 is connected to the body 10, the assembly frame 40 is fitted from the front side of each shoulder 80b of the cover 80 (the leg 40d of the assembly frame 40 is attached to the cover 8).
0) and the concave portion 18 of the body 10), and a substantially V-shaped hooking claw 40a formed at the tip of both leg pieces 40d of the assembly frame 40 is formed on the step 15 formed on the side surface of the body 10, respectively. , The cover 80 and the body 10 are fixed by the assembly frame 40.

Here, up to three cases 1 can be connected to a mounting frame for a buried type wiring device so that the front surface of the case 1 is exposed through an opening window of the mounting frame. Of embedded wiring equipment with unit dimensions set to
It is formed in a size corresponding to an individual. That is, the case 1 is formed in a size of one wiring device that can be mounted on a mounting frame of a large-sized continuous wiring device standardized by JIS standard, for example, up to three. A pair of engaging claws 40 capable of engaging with the provided mounting holes
b project from both ends of the assembly frame 40. Further, each assembly frame 40 is provided with a locking hole 40c in which a locking claw of the mounting frame is locked when mounted on a metal mounting frame.

The cover 80 has a shape such that a part of the handle 90 for operation protrudes from the front surface of the case 1.
An opening 81 is formed on the inner surface of the cover 80, and the protrusions 9 projecting from both sides of the handle 90 are formed on the inner surface of the cover 80.
5 is formed with a concave portion 82 to be engaged. Therefore, when the handle 90 is stored in the opening 81, the protrusions 95 on both sides of the handle 90 are inserted into and engaged with the recesses 82 of the cover 80, respectively.
Is the pivot point of the handle 90.

On the other hand, flanges 90c are protruded from both ends of the handle 90, and a pair of triangular guide pieces 90a (see FIGS. 3B and 4) are formed from the side end of the rear surface of the handle 90. ) And a pair of semicircular arm pressing pieces 90b
(See FIG. 1 (b), FIG. 3 (b), and FIG. 4). Here, the distal end of each of the pair of arm pressing pieces 90b is adapted to engage and disengage with a curved portion 50a formed on the front side of a base end 50b of a substantially U-shaped arm 50 described later. A transparent name cover 93 is fitted to the front of the handle 90. Name cover 93 and handle 90
A name sheet 94 (see FIG. 4) is sandwiched between these. The handle 90 is formed with the above-mentioned flange 90c, so that the gap between the handle 90 and the cover 80 can be hidden.

A light-transmitting window 91 is formed on the front surface of the handle 90, and a light-transmitting member 92 made of a light-transmitting material is attached to the light-transmitting window 91. The name sheet 94 is provided with a hole 94 a at a portion of the handle 90 facing the light transmitting window 91. By the way, handle 90
A recess 97 into which one end of the coil spring 96 is fitted is formed on the rear side of the coil spring 96.
The other end of the spring support portion 75 of the oscillator 73 (see FIG. 5)
a, 75b. The oscillating body 73 is inclined in the direction opposite to the inclination direction of the handle 90 by the action of the coil spring 96 (see FIGS. 1B and 3B).
However, the handle 90 is firmly fixed at that position by the restoring force of the coil spring 96 returning to a straight state, being bent in a V-shape or an inverted C-shape.

As shown in FIG. 4, the body 10 has a delay element housing 12 formed substantially at the center thereof.
Are formed on both sides of the terminal. The delay element housing portion 12 is housed delay element 20, the terminal accommodating portion 14 terminals 60 ₁ to be described later, 60 ₂ is accommodated, the terminal 60 _3, 60 ₄ are accommodated below the terminal accommodating portion 13 . Further, the arm 50 described above is provided on the front end face of the body 10.
Shafts 51 ₁ , 51 protruding from the base end 50b of the
₂ (refer to FIG. 6) are concave bearings 55 ₁ , 55
₂ is recessed so that the arm 50 can rotate freely.

In this embodiment, since the arm 50 is formed of POM (polyoxymethylene), the arm 50 and the arm pressing piece 90b of the handle 90 are provided.
The frictional resistance between the arm 50 and the pressed portion 26a of the card 26 can be reduced between the arm 50 and the (arm pressing portion), and the load required for operating the handle 90 can be reduced. Since the arm pressing piece 90b is formed integrally with the handle 90, the positional accuracy and strength of the arm pressing piece 90b can be improved.

The rotating shafts 51 ₁ , 51 _{2 of} the arm 50
As shown in FIG. 7, different sizes (both rotating shafts 51 ₁ ,
51 if the rotation axis 51 ₁ about the midpoint between the _two, the 51 ₂ to each other in the asymmetric shape), the arm 50 rotating shaft 51
_1, 51 ₂ can be eliminated errors in the insertion direction of the arm 50 when inserted into the bearing portion 55 _1, 55 _2. Further, in the present embodiment, the rotary shaft 51 ₂ is, as shown in FIG. 8, sandwiching the and center line perpendicular to the one linear diametrical 2
It is formed in a shape cut by two planes. That is, 51 _21, 51 ₂₂ curved in FIGS. 7 and 8, 5
1 ₂₃ and 51 ₂₄ become planes. Therefore, the rotating shaft 51 ₂
Curved 51 ₂₁ but in the case of rotating, 51 ₂₂ Only the bearing section 5
Since contact with the 5 _2, even when the parting line PL is formed on the rotary shaft 51 _2, by forming a parting line PL to the plane 51 _23, 51 _24, which is the cut, parting line The effect of the PL on the rotational movement of the arm 50 can be eliminated. The same applies to the rotary shaft 51 _1. The surface to be cut is not limited to two places, the parting line PL may have a shape that can be rotated without touching the bearing portions 55 _1, 55 _2.

Hereinafter, the delay element 20 will be described. The delay element 20 is, as shown in FIG.
6 and a guide groove 21b (a groove between the rib 21a and the rib 21a 'shown in FIG. 3B and FIG. 9) for guiding both leg pieces of the card 26 when the card 26 moves.
1, a return spring 27 formed of a coil spring for urging the card 26 forward (upward in FIG. 1B), and a rubber such as silicon rubber, which can be elastically bent. A sucker block 23, an octagonal column-shaped suctioned body 24 to which a suction surface 43 (see FIG. 1B) of a suction cup 23 b of the suction block 23 is sucked, an air permeable member 32 described later, and a box-shaped rear opening. The device case 22 includes an element case 22 in which the suction cup 23b and the to-be-adsorbed body 24 are stored, and a dustproof filter 25 adhered to the rear surface of the element case 22 with an adhesive tape or the like. Here, in the present embodiment, since the rear opening of the element case 22 is closed by the filter 25, foreign matter such as dust or dirt enters the element case 22 from behind the element case 22. Can be prevented. The filter 25 is made of a fluorinated fiber material (Teflon fiber material). By the way, the suction cup block 23 is composed of the suction cup 23b and the suction cup cover 2 formed integrally with the same material as the suction cup 23b.
3a and the like.

The suction cup 23b is formed integrally with a cylindrical air permeable member press-fitting portion 23d into which the air permeable member 32 is press-fitted. A cylindrical shaft 42 is provided on the distal end side of the air permeable member press-fit portion 23d. A pair of rod-shaped card holding pins 42b (see FIGS. 2 and 9) that are substantially parallel to the axial direction of the shaft 42 are integrally formed on the outer periphery of the shaft 42.
6, the shaft 42 is inserted from the rear into an insertion hole 22 e (see FIG. 9) formed in the front surface of the element case 22, and the front ends of the two card holding pins 42 b are connected to the base end of the card 26. In the portion 26f, it may be inserted into insertion holes 26d formed on both sides of a contact spring pressing portion 26c described later, and heated and fixed by a laser or the like. The suction block 23 is provided with a collar 23 at the front end of the suction cover 23a.
c is formed, and the flange 23 c is fixed to the element case 22.

In the present embodiment, the card 26 and the shaft 4
Since the suction block 2 is connected to the suction block 23, the shape of the suction block 23 changes in accordance with the movement of the card 26 (see FIGS. 1B and 3B). By the way, at the rear of the base end 26f of the card 26, an air passage is formed between the internal space 23f of the air permeable member press-fitting portion 23d and the outside of the card 26 in a state where the card 26 and the shaft 42 are connected. An air intake 26e formed by a notch is formed. In the suction cup block 23, a ventilation hole 23g communicating with the internal space 23f is formed on the inner peripheral bottom surface of the suction cup 23b, so that the internal space of the suction cup 23b and the air intake port 26e communicate with each other. Has become. In the present embodiment, in the internal space 23f of the air permeable member press-fitting portion 23d,
An air permeable member 32 made of, for example, a porous ceramic (for example, porous alumina ceramic) (see FIG. 1B)
Are arranged. Here, the shape of the air permeable member 32 is cylindrical, and the outer periphery of which is sealed with a rubber tube 33 is press-fitted into the internal space 23f.

As shown in FIG. 9, a spring receiving groove 22b in which one end of a return spring 27 is fitted around the insertion hole 22e is formed on the front surface of the element case 22.
On the other hand, a pair of substantially concave spring receiving grooves 26b (see FIG. 2) are formed on the rear surface of the base end portion 26f of the card 26.
The other end of the return spring 27 is held. By the way, the delay element 20 is configured such that air entering the internal space 23f from the air intake port 26e into a space formed between the suction cup 23b and the suction target 24 in a state where the suction cup 23b is adsorbed to the suction target 24. Is inserted through the air permeable member 32 from the vent hole 23g of the suction cup 23b.
Therefore, when the card pressing portion 52 composed of both legs of the arm 50 separates from the tip of the pressed portion 26a composed of both legs of the card 26, the suction force of the suction cup 23b to the suction target 24 gradually decreases, and this suction is performed. The force becomes weaker than the restoring force of the return spring 27, and the suction cup 23b separates from the to-be-adsorbed body 24.

That is, the distal end of the arm pressing piece 90b is bent along the inner peripheral surface of the curved portion 50a of the arm 50.
a from the time when the card pressing portion 52 of the arm 50 separates from the pressed portion 26a of the card 26, the card 26 moves forward by a predetermined time (hereinafter referred to as a delay time) (see FIG. It moves upwards in b).
Therefore, the delay time can be adjusted by changing the air permeability of the air permeable member 32, the material of the suction cup 23b, the material of the to-be-adsorbed body 24, and the like.

In this embodiment, the air permeable member 32
Is composed of a porous ceramic as described above,
Since the dependence of the air transmission coefficient on temperature and humidity is small, fluctuations in delay time due to temperature changes and humidity changes in the use environment can be reduced, and the delay time can be made highly accurate. By the way, in the present embodiment, since the suction cup 23b and the outside of the element case 22 are partitioned by the suction cup cover 23a, it is necessary to prevent foreign matter such as dust from entering between the suction cup 23b and the to-be-adsorbed body 24. The suction cup 23b and the adsorbed body 24
Is stable, and the delay time can be made substantially constant. Here, the suction cup cover 23a constitutes dustproof means, and the suction cup 23b and the suction cup cover 23a are integrally formed, so that cost reduction can be achieved.

The frame 21 is made of, for example, a thermosetting resin, and has positioning projections 21c (see FIGS. 4 and 6) integrally protruding from the front end to the rear end on both side surfaces. I have. On the other hand, body 10
As shown in FIG. 4, a positioning groove 16a for guiding the positioning protrusion 21c is formed on the inner side surface of the delay element housing 12.

The frame 21 has a guide groove 21b formed on its inner surface to guide the pressed portion 26a (both leg pieces) of the card 26 slidably as described above. Then, the pressed portion 26 of the card 26
The front ends of the a and 26a project from the front surface of the frame 21 (see FIG. 4). Further, the frame 21 and the element case 22 are positioned and fixed by the protruding portions 22c protruding forward from the vicinity of the four corners on the front surface of the element case 22.

The terminals 60 ₁ and 60 ₂ (see FIG. 4), which are quick-connecting terminals, are housed in the terminal housing portion 14 of the body 10. Here, the terminal 60 ₁ is composed of a terminal plate 63a and the lock spring 61 _1, lock spring 61, the terminal plate 6
3a and the lock spring 61 ₁ between the wire insertion port 17 ₁ (FIG. 3
(See (c)), a lock piece 61b that bites into the electric wire inserted into the electric wire to prevent it from coming off, and a contact piece 61a that elastically contacts the electric wire. Thus, between the locking spring 61 ₁ and the terminal plate 63a through the wire insertion hole 17 _1, inserting a wire from the lock piece 61b side, the contact piece 61a and lock piece 61b
The electric wire is pinched between the terminal plate 63a by the spring force and the locking piece 61b bites into the electric wire so that the electric wire cannot be pulled out. Similarly the terminal 60 ₂ is composed of a terminal plate 63b and the locking spring 61 _2, the spring force of the electric wire insertion port 17 ₂ (FIG. 3 (c) refer) inserted wires into the contact piece 61a and lock piece 61b Terminal board 63a
Is sandwiched between. Further, the terminal accommodating portion 14, release button 62a on both locking springs 61 _1, 61 ₂ so as to extend over is arranged. Release button 62a is in contact with both locking springs 61 _1, 61 ₂ of the locking piece 61b, release button 62a is lock piece 6
1b, the lock pieces 61b, 61b
3a and 63b are shifted from the portion where the electric wire is held. An operation hole 19 (see FIGS. 3B and 3C) is formed in the rear wall of the body 10 at a position corresponding to the release button 62a. By pressing the release button 62a, the locking pieces 61b, 61b biting into the electric wire are bent from the electric wire in the direction of releasing the pressure contact, so that the electric wire can be pulled out.

On the other hand, the terminal housing 13 has a terminal plate 63c.
And a pair of locking springs 61_Three, 61_FourQuick connection composed of
A pair of terminals 60 made of a child_Three, 60_Four(See Fig. 4)
Is equipped. Here, the terminal 60_Three, 60_FourIs the terminal plate 6
3c is common. Terminal 60_ThreeIs the wire insertion port 17_Three
(See FIG. 3 (c)). _Three
The contact force of the contact piece 61a and the locking piece 61b
Between the terminal 63 and the plate 63c._FourIs the wire insertion port 1
7_Four(See FIG. 3 (c)).
1_FourOf the contact piece 61a and the locking piece 61b
It is sandwiched between the terminal plate 63c. In addition, terminal storage section 1
3, two lock springs 61 similar to the terminal storage portion 14._Three, 6
1_FourA release button 62b is provided so as to straddle the
Operation hole 19 (see FIGS. 3 (b) and 3 (c)) is provided on the rear wall 0.
Is formed.

In this embodiment, since the terminal housing 14 and the terminal housing 13 are provided at both ends of the case 1 so as to be separated from each other, the terminals 60 ₁ and 60 ₂ and the terminals 60 ₃ and 60 ₄ are connected to each other. The insulation between them can be improved. The above-mentioned terminal plate 63
a and 63b have different fixed contacts 64a and 64b, respectively, and form different switch mechanisms in the case 1. Note that the strip-shaped contact spring 70 coupled to the terminal plate 63c has the movable contact 72 when the delay element 20 is not provided.
Are in contact with the fixed contacts 64a of the terminal plate 63a so as to obtain a predetermined contact pressure.

However, since the contact spring 70 extends from the terminal plate 63c so as to pass in front of the contact spring pressing portion 26c of the card 26 of the delay element 20, the contact spring 70 is moved forward by the contact spring pressing portion 26c. In this state, the movable contact 72 is separated from the fixed contact 64a of the terminal plate 63a. Here, the contact spring 70, the movable contact 72, and the fixed contact 64a constitute one switch mechanism (delay switch mechanism).

A lead plate 65 is integrally extended from the front end of the terminal plate 63c, and the swinging member 73 is attached to the rising portions 66a on both sides of the convex portion 66 formed at the tip of the lead plate 65. The notch 73a (see FIG. 5) is engaged, and the swinging body 73 is swingable with the convex portion 66 as a fulcrum. On the other hand, a bent piece 73b to which the movable contact 74 is fixed is formed integrally with the rocking body 73, and the movable contact 74 formed on the rear surface of the tip of the rocking body 73 in response to the operation of the handle 90. And the fixed contact 64b of the terminal plate 63b are brought into contact with and separated from each other. The above-described pair of spring support portions 75a and 75b can be configured such that the length of the spring support portion 75a is longer than that of the spring support portion 75b, so that the spring support portion
The contact pressure between the movable contact 74 and the fixed contact 64b provided on the bent piece 73b on the 5a side is improved. Lead plate 65
Is a columnar terminal temporary holding rib 21g protruding from a pair of support pieces 21e (see FIG. 4) formed at the front portion of the frame 21.
Is temporarily held.

The terminal plate 63a has a notch 21f in which a part of the portion where the fixed contact 64a is provided is formed in the frame 21.
(See FIG. 9), the contact spring 70 is positioned by a pair of support pieces 2 formed at the front portion of the frame 21.
The movable contact 72 moves in the space between 1e and the fixed contact 64
a. A printed wiring board 76 on which a light emitting element 77 such as a neon lamp is mounted is disposed at the rear of the handle 90, and one lead of the light emitting element 77 has a conductive pattern and a lead wire (not shown) of the printed wiring board 76. ) Is connected to one lead of the resistor 79. The other lead of the resistor 79 is connected to the terminal plate 63c by a lead wire (not shown). The other lead of the light emitting element 77 is shown in FIGS.
1 is electrically connected to a substantially S-shaped leaf spring 78.
Here, the leaf spring 78 is formed by bending a conductive member, and one end portion 78 a (fixed end portion) is
And is connected to the other lead of the light emitting element 77 via the conductive pattern of the printed wiring board 76. That is, the leaf spring 78, the light emitting element 77, the resistor 79, and the terminal plate 63c are connected in series. By the way, the leaf spring 78 has a contact portion 78c (current-carrying portion) between the one end portion 78a (fixed end portion) and the other end portion 78b which comes into contact with and separates from the terminal plate 63a in response to operation of the handle 90 serving as an operation portion. The contact portion 78c contacts the terminal plate 63a when the delay switch is off (see FIG. 1), and is away from the terminal plate 63a when the delay switch is on (see FIG. 3). Here, since the contact portion 78c is bent so that the surface on the side facing the terminal plate 63a becomes a smooth convex curved surface,
When the handle 90 is turned off (set release operation), conduction between the leaf spring 78 and the terminal plate 63a can be reliably performed. Since a pair of positioning ribs 98 for positioning the other end portion 78b of the leaf spring 78 project from the rear surface of the handle 90 as shown in FIG.
The displacement of the other end 78b of the leaf spring 78 can be prevented,
It is possible to prevent a trouble such as a short circuit between the terminal plates 63a and 63c due to a displacement of the other end portion 78b of the leaf spring 78. In the present embodiment, the leaf spring 78 constitutes an energizing unit.

The light-emitting element 77 is mounted on the printed wiring board 76 connected to the rear surface of the handle 90 and is disposed at a position facing the light-transmitting window 91 of the handle 90. Light is radiated to the outside through the light source. Therefore, in the off state of the delay switch of the present embodiment, even when the surroundings are dark such as at night,
The position of the case 1 can be confirmed by the light of the light emitting element 77. Note that the handle 90 has a press-fit portion 90d on the rear surface side, in a space other than the operation space of the arm 50, to which the printed wiring board 76 is pressed.

Next, the operation of the delay switch according to this embodiment will be described. 1 and 2 show the OFF state of the delay switch of the present embodiment. In this state, when the handle 90 serving as the operation unit is turned on (set operation), the arm pressing piece 90b of the handle 90 is rotated, and the arm pressing piece is turned. The distal end of 90 b moves along the curved portion 50 a of the arm 50. When the handle 90 is turned on, the coil spring 96 inclines in the opposite direction so that the movable contact 74 provided on the rocking body 73 contacts the fixed contact 64b of the terminal plate 63b as shown in FIG. Is turned on, and the arm pressing piece 90b rotates, so that the arm 50 rotates, and the card pressing portion 52 at the tip of the arm 50 presses the pressed portion 26a of the card portion 26, and the return spring 27 is attached. The card 26 moves against the force (pressed downward in FIG. 1B), and the movable contact 72 of the contact spring 70 is moved.
Contacts the fixed contact 64a of the terminal plate 63a, and this electric path is turned on. Further, when the card 26 moves, the suction cup 23b is pushed down to a position where the suction cup 23b comes into contact with the suction target 24, and the suction cup 23b is sucked to the suction target 24,
When the card 26 is pressed down, the suction cup 23b
Is adsorbed and held by the object to be adsorbed 24.

On the other hand, FIG. 3 shows the ON state of the delay switch of the present embodiment. In this state, when the handle 90 is turned off (set release operation), the tip of the arm pressing piece 90b is moved to the curved portion 50a of the arm 50. The arm 50 pivots by moving along the curved portion 50a along the same direction, and the card pressing portion 52 of the arm 50 moves away from the pressed portion 26a of the card 26. When the handle 90 is turned off, the coil spring 96 inclines in the opposite direction so that the movable contact 74 provided on the rocking body 73 as shown in FIG.
b, the card 26 moves forward by the restoring force of the return spring 27 and the contact spring pressing portion 26c pushes the contact spring 70 forward, so that the movable contact 72 becomes the fixed contact 64a. And the electric circuit (switch mechanism) is also turned off.

However, in the delay switch of this embodiment, when the set is released by the handle 90, the suction cup 2
Since there is a delay time until the suction cup 23b separates from the suction target 24 due to the balance between the suction force of the 3b to the suction target 24 and the spring force of the return spring 27, the conventional gear becomes unnecessary, and the conventional delay is used. Compared to a delay switch having a unit, the configuration is simpler, higher in reliability, lower in cost, and lower in noise. When using the delay switch of this embodiment for example, the operation of the toilet ventilation fan and lighting load, since the terminal 60 ₃ and the terminal 60 ₄ have a common terminal plate 63c, connecting the lighting load to the terminal 60 ₂ it may be connected to the ventilating fan to the terminal 60 _1. In this case, when the handle 90 is turned on (set operation), the lighting load is turned on and the ventilation fan is operated, and when the handle 90 is turned off (set release operation), only the lighting load is turned off immediately, and after the delay time elapses, the ventilation fan is turned off. Is stopped. Therefore, it is possible to eliminate the inconvenience that occurs when the ventilation fan is immediately stopped, and to prevent forgetting to turn off the ventilation fan.
The delay switch can be used in various places other than the toilet. Further, the delay time may be appropriately set according to the use environment and the purpose of use.

(Embodiment 2) The basic configuration and basic operation of the delay switch of this embodiment shown in FIGS. 13 to 16 are substantially the same as those of Embodiment 1, and the switch mechanism is changed to only one related to the delay element 20. Is different. That is, the present embodiment is different from the first embodiment in that the terminal plate 63b and the fixed contact 64b described in the first embodiment are not provided, and the shape of the terminal plate 63a and the shape of the oscillating body 73 are different. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

The oscillating body 73 in the delay switch of this embodiment has a substantially U-shape as shown in FIG.
There is no bent piece 73b (see FIG. 5) as in the first embodiment, and no movable contact 74 is provided. Note that FIG.
It is a top view in the state where it was removed. Next, the operation of the delay switch according to the present embodiment will be described.

FIGS. 13 and 14 show the OFF state of the delay switch of this embodiment. In this state, when the handle 90, which is an operation portion, is turned on (set operation), the arm pressing piece 90b of the handle 90 is rotated. The tip of the arm pressing piece 90b moves along the curved portion 50a of the arm 50. When the handle 90 is turned on, the coil spring 96 is tilted in the opposite direction, so that the arm pressing piece 90 is turned.
b, the arm 50 rotates, and the card pressing portion 52 at the tip of the arm 50 presses the pressed portion 26a of the card portion 26,
The card 26 moves against the urging force of the return spring 27 (pressed downward in FIG. 13B), and the contact spring 7
The zero movable contact 72 comes into contact with the fixed contact 64a of the terminal plate 63a, and this electric path is turned on. Further, when the card 26 moves, the suction cup 23b moves
When the card 26 is pushed down, the suction cup 23b is adsorbed and held by the suction target 24 when the card 26 is pushed down.

On the other hand, FIG. 15 shows the ON state of the delay switch of this embodiment. When the handle 90 is turned off (set release operation) in this state, the distal end of the arm pressing piece 90b is moved to the curved portion 50a of the arm 50. The arm 50 pivots by moving along the curved portion 50a along the same direction, and the card pressing portion 52 of the arm 50 moves away from the pressed portion 26a of the card 26. When the handle 90 is turned off, the coil spring 96 is tilted in the opposite direction.
The card 26 moves forward by the restoring force of 7, and the contact spring pressing portion 26c pushes the contact spring 70 forward, so that the movable contact 72 is separated from the fixed contact 64a and the electric path (switch mechanism) is turned off.

When the delay switch of this embodiment is used for operating a lighting load at, for example, an entrance, a terminal 60 is used.
_A lighting load may be connected between ₁ and the terminal 60 ₃ (or the terminal 60 ₄ ). In this case, when the steering wheel 90 is turned on (set operation), the illumination load is turned on, and the steering wheel 9 is turned on.
When 0 is turned off (set release operation), the lighting load is turned off after the elapse of the delay time. Therefore, for example, when turning off the steering wheel 90 after turning on the lighting load when going out or returning home, there is a delay before the lighting load is turned off, so the lighting load is turned off before the person leaves the entrance. It is possible to eliminate such inconvenience.

[0043]

According to the first aspect of the present invention, there is provided an operation unit, a suction cup which moves in conjunction with a setting operation of the operation unit, a card which cooperates with the suction cup to open and close a switch mechanism, and a moving suction cup. The sucked and held object, a return spring that urges the sucker in a direction in which the sucker moves away from the sucked object, a terminal to which the switch mechanism is electrically connected, and a rotary member that rotates in conjunction with the setting operation of the operation unit. There is an arm for moving the card, and when the set is released by the operation unit, there is a delay time until the suction cup separates from the suction target due to the balance between the suction force of the suction cup to the suction target and the spring force of the return spring. The force of the setting operation can be transmitted to the card via the arm, the card can be driven stably, and the delay time is determined by the balance between the suction force of the suction cup to the suction target and the spring force of the return spring. Because it is decided, Una gear becomes unnecessary, construction as compared to a delay switch having a conventional delay unit is high and simple and reliable, with cost reduction can be achieved, there is an effect that noise is reduced. Further, since there is no need for a conventional gear, there is an effect that the operation of the operation unit becomes smooth.

According to a second aspect of the present invention, in the first aspect of the present invention, the rotation axis of the arm is formed in a shape that is orthogonal to one diametrical straight line and cut by two planes sandwiching the center. Therefore, even if a parting line is formed on the rotation axis, by forming the parting line on the cut surface, it is possible to eliminate the influence of the parting line on the rotational movement of the arm. There is.

According to a third aspect of the present invention, in the first aspect of the invention, since the arm is formed of POM, frictional resistance between the arm and the operation unit and between the arm and the card can be reduced. Thus, there is an effect that the load required for operating the operation unit can be reduced. According to a fourth aspect of the present invention, in the first aspect of the invention, the arm has a pair of rotating shafts, and the rotating shafts are asymmetric with respect to an intermediate point between the two rotating shafts. There is an effect that it is possible to eliminate a mistake in the insertion direction of the arm when inserting the arm.

According to a fifth aspect of the present invention, in the first aspect of the present invention, a light emitting element is connected between the pair of terminals via a conducting means at the time of releasing the set of the operating section, and a printed wiring on which the light emitting element is mounted. The operating section has means for radiating the light of the light emitting element to the outside, and has a press-fitting section on the rear side where the printed wiring board is pressed into a space other than the operating space of the arm, so that the operating section is set. In the state where the release operation is performed, the light emitting element is turned on, and the position of the operation unit can be recognized even when the surroundings are dark such as at night, and the printed wiring board on which the light emitting element is mounted can be moved while securing the operation space of the arm. Since the light-emitting element can be positioned on the rear surface side of the operation section and the light-emitting element is positioned, the assemblability is improved.

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, the energizing means comprises a leaf spring formed by bending a plate-shaped conductive member, and the leaf spring is fixed to the printed wiring board to emit light. A fixed end portion connected to the fixed end portion and an energizing portion formed between the fixed end portion and the other end portion, the energizing portion being in contact with one of the terminals at the time of a setting release operation of the operation portion, Since the surface on the side facing one of the terminals is bent so as to have a smooth convex curved shape, conduction between the leaf spring and one of the terminals can be reliably performed at the time of the operation of releasing the set of the operation unit. Thus, there is an effect that the light emitting element can be reliably turned on.

According to a seventh aspect of the present invention, in the sixth aspect of the present invention, since the operating portion is formed with a positioning rib for positioning the other end of the leaf spring, the position of the other end of the leaf spring can be adjusted. It is possible to prevent the displacement, and to prevent the occurrence of a trouble such as a short circuit between terminals due to a displacement of the other end of the leaf spring. According to an eighth aspect of the present invention, in the first aspect of the present invention, since the operating portion is formed integrally with the arm pressing portion for pressing the arm, the position accuracy and strength of the arm pressing portion can be enhanced. There is.

[Brief description of the drawings]

1A and 1B show a first embodiment, in which FIG. 1A is a plan view in an off state, and FIG. 1B is a cross-sectional view in an off state.

FIG. 2 is a side sectional view showing the same and in an off state.

FIG. 3 shows the same as the above, (a) is a plan view in an ON state,
(B) is a cross-sectional view in an ON state, and (c) is a rear view.

FIG. 4 is an exploded perspective view of the same.

FIG. 5 is a perspective view of an oscillator used in the above.

FIG. 6 is a plan view showing the same as above, with a cover removed.

FIG. 7 shows an arm used in the above, (a) is a plan view,
(B) is a front view, (d) is a side view.

FIG. 8 is an enlarged view of a main part of FIG. 7 (b).

FIG. 9 is an exploded perspective view of the delay element used in the embodiment.

FIG. 10 is a perspective view of a main part of the above.

FIG. 11 is a schematic configuration diagram of a main part of the above.

FIG. 12 is a schematic rear view of a main part of the above.

13A and 13B show the second embodiment, in which FIG. 13A is a plan view in an off state, and FIG. 13B is a cross-sectional view in an off state.

FIG. 14 is a side sectional view showing the above and in an off state.

FIG. 15 shows the same as the above, (a) is a plan view in an ON state,
(B) is a cross-sectional view in an ON state, and (c) is a rear view.

FIG. 16 is an exploded perspective view of the same.

FIG. 17 is a perspective view of an oscillating body used in the above.

FIG. 18 is a plan view showing the same as above, with a cover removed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 23b Suction cup 23d Air permeation member press-fit part 24 Adsorbent 26 Card 26c Contact spring pressing part 26e Air intake 27 Return spring 32 Air permeation member 50 Arm 50a Curved part 63a Terminal plate 64a Fixed contact 63c Terminal plate 70 Contact spring 72 Movable contact 90 Handle

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor: Manabu Yano, Kazuma, Kazuma, Osaka 1048, Matsushita Electric Works, Ltd.

Claims (8)

[Claims] An operating unit, a suction cup that moves in conjunction with a setting operation of the operation unit, a card that cooperates with the suction cup to open and close a switch mechanism, and a suctioned body that sucks and holds the moved suction cup A return spring that urges the suction cup in a direction in which the suction cup moves away from the object to be sucked, a terminal to which the switch mechanism is electrically connected, and an arm that turns and moves the card in conjunction with the setting operation of the operation unit. A delay switch, characterized in that when the set is released by the operation unit, there is a delay time until the suction cup separates from the suction target due to the balance between the suction force of the suction cup to the suction target and the spring force of the return spring. 2. A rotating shaft of the arm is formed in a shape cut perpendicularly to two planes perpendicular to one straight line in the diametric direction and sandwiching the center at the center.
The delay switch described. 3. The delay switch according to claim 1, wherein the arm is formed of POM. 4. The delay switch according to claim 1, wherein the arm has a pair of rotating shafts, and the rotating shafts are asymmetrical about an intermediate point between the two rotating shafts. 5. A light emitting device connected between said pair of terminals via a current supplying means at the time of a setting release operation of the operation unit, and a printed wiring board on which the light emitting device is mounted, wherein the operation unit comprises:
2. The delay switch according to claim 1, further comprising means for radiating light of the light emitting element to the outside, and a press-fitting portion on a rear surface side of the arm, which presses the printed wiring board into a space other than the operation space of the arm. 6. The energizing means comprises a leaf spring obtained by bending a plate-shaped conductive member. The leaf spring is fixed to a printed wiring board and connected to a light emitting element; A current-carrying portion formed between the portion and the other end portion, the current-carrying portion being in contact with one of the terminals at the time of a set canceling operation of the operation portion.
6. The terminal according to claim 5, wherein a surface on a side facing one of the terminals is bent to have a smooth convex curved surface.
The delay switch described. 7. The delay switch according to claim 6, wherein the operating portion is formed with a positioning rib for positioning the other end of the leaf spring. 8. The operation unit according to claim 1, wherein an arm pressing unit for pressing the arm is integrally formed.
The delay switch described.