JP2009163916A - Switch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To restrain a switch from being damaged even if various loads are added on it, and at the same time, improve on safety of its conduction control in case a part of it is actually damaged. <P>SOLUTION: A structure of the switch including an envelope part comprising a first container body and a second container body, an operating part, a fixed base body equipped with a first terminal body and a second terminal body, an operating stress transmission part, and a movable base body equipped with an inter-terminal connecting body for switching electric connection between terminals and moving in interlocking with the operating stress transmission part is to be of a structure in which the second container body is locked to the first container body by a first locking part formed in itself and a first locked part formed at the first container body, and the fixed base body is locked to the first container body by a second locking part formed in itself and a second locked part formed at the first container body, so that, in case locking is released between the fixed base body and the first container body, the second container body regulates movement of the terminal part toward outside of the envelope part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a switch, and more particularly to a pushbutton switch that switches a state in accordance with an operation of an input button.

  As a conventional typical switch, a push button switch that controls conduction between a pair of terminals by operating an operation button is known. Specifically, the push button switch includes a pair of fixed terminals and a movable terminal that moves according to the operation of the operation button and controls conduction between the pair of fixed terminals. The pushbutton switch is roughly classified according to the pressing operation of the operation button, the movable terminal moves from the reference position to the pressed position so as to short-circuit between the pair of terminals, and according to the return operation (including automatic return) of the operation button. The movable terminal moves from the pressed position to the reference position so as to open the pair of terminals (A contact type), and conversely, the pair of terminals is opened by the pressing operation and the pair is fixed by the returning operation. A configuration in which terminals are short-circuited (B contact type) is known. In addition, the push button switch includes a plurality of pairs of fixed terminals and a plurality of movable terminals corresponding to each pair, and the conduction of a plurality of systems is collectively or according to the operation method and the number of operations of the operation buttons. A configuration (multiple system type) that is individually controlled is known. As a multi-system pushbutton switch, there are a configuration in which each of a plurality of systems is an A contact type, a configuration in which each of a plurality of systems is a B contact type, and a configuration in which a plurality of systems includes an A contact type and a B contact type. Are known.

  In the push button switch, at least the contact of the pair of fixed terminals and the contact of the movable terminal are sealed inside the housing. As a result, even though the surface of those contacts has moved to a position where the movable terminal is short-circuited between the pair of fixed terminals due to contamination or corrosion due to dust, gas, or solution entering, the pair of fixed terminals and the movable terminals Therefore, it is possible to prevent a substantial short circuit from occurring due to an increase in connection resistance between the contacts and insulation between the contacts.

  Moreover, in the conventional typical switch, the structure which the member which comprises the whole is unitized into several units, and a switch is completed by assembling each unit is known. In the case of this configuration, the yield can be improved, and it becomes easy to partially replace the switch when it fails. In this assembly, there is known a configuration that can be performed only by an artificial operation regardless of machine operation, and a configuration that can be disassembled into a plurality of units by a predetermined operation after assembly.

  As a conventional general configuration, a structure provided with a pair of fixed terminals is stored inside a storage body, and the base is fixed by a sealing body that closes one end of the storage body (for example, Patent Documents) 1), and a structure (see, for example, Patent Document 2) in which a pair of fixed terminals are provided and one end of the storage body is sealed by being coupled to the storage body. That is, the structure provided with the fixed terminal is fixed at a predetermined position by the coupling of the storage body and the sealing body.

JP-A-5-174668 JP 2001-35302 A

  In various types of conventional switches, a tensile force is applied to the terminal during the work of welding the terminal protruding outside to mount the switch, and the contact of the fixed terminal and the contact of the movable terminal during use. There is a case where a load through the fixed terminal is applied to the sealing body by pressing the operation unit when the is welded. In addition, due to a normal pressing of the operation unit or a strong impact on the unexpected operation unit, the addition of the structure having the movable terminal or the biasing member that restricts the movement of the movable terminal may be applied to the sealing body. there were. In particular, switches that are operated in the event of an unforeseen emergency such as an emergency stop switch or a safety switch may cause pressing operations to be messy and increase the pressing strength. Situation is likely to occur. When the sealing body is detached from the storage body due to such a load, the structure body provided with the fixed terminals can freely move. In this case, the fixed terminal can freely move relative to the movable terminal, and the conduction between the fixed terminals cannot be controlled by the operation of the operation unit. In particular, in the case of a safety switch or the like, it is necessary to prevent such a situation from occurring because there is a risk of damage spreading unless at least the conduction between the fixed terminals is interrupted.

  Therefore, in the switch according to the present invention, even if various loads are applied to the switch, the switch itself can be prevented from being damaged, and the switch conduction control can be performed even if part of the easily damaged place is actually damaged. To improve safety.

In order to solve the above-described problem, the switch according to the present invention provides:
An enclosure including a first storage body and a second storage body that substantially closes one end of the first storage body;
An operation unit disposed at the other end of the outer enclosure;
A fixed base disposed inside the outer enclosure, a first terminal body fixed to the fixed base, one end projecting outwardly through the outer enclosure, and fixed to the fixed base; A terminal portion including a second terminal body, one end of which protrudes outwardly through the surrounding portion;
An operation stress transmission unit that is connected to the operation unit and moves toward the second storage body in accordance with a pressing operation of the operation unit;
A movable base disposed inside the outer enclosure and moving toward the second storage body in conjunction with the movement of the operation stress transmission part, and fixed to the movable base, the first terminal body and the first An inter-terminal connection switching unit including an inter-terminal connection body for switching electrical connection between the two terminal bodies;
A switch including
A first locking portion formed in the second storage body;
A first locked portion formed in the first storage body and corresponding to the first locking portion;
A second locking portion formed on the fixed base;
A second locked portion formed in the first storage body and corresponding to the second locking portion;
Further including
The second storage body is locked to the first storage body by the first locking portion and the first locked portion,
The fixed base is locked to the first storage body by the second locking portion and the second locked portion,
The second storage body restricts the movement of the terminal portion to the outside when the locking between the fixed base and the first storage body is released.

  In the switch according to the present invention, the load applied to the second storage body is received by the first locking portion and the first locked portion, and the load via the first terminal body or the second terminal body is applied to the first engagement body. Since it can receive by a stop part and a 1st to-be-latched part, a cumulative load can be reduced rather than the case where those loads are received by one specific kind of fixing | fixed part. Thereby, durability of the switch can be improved.

  Further, when the locking between the first locking portion and the first locked portion is released due to their breakage or the like, the first terminal is locked by the locking between the second locking portion and the second locked portion. In order to maintain the state in which the body and the second terminal body are fixed to the first storage body, the conduction control of the switch can be normally performed. On the other hand, even when the second locking portion and the second locked portion are unlocked, the second storage is fixed by the locking of the first locking portion and the first locked portion. Since the movement of the terminal portion is restricted by the body, the first terminal body and the second terminal body included in the terminal portion are maintained in a substantially fixed state with respect to the first storage body, and the switch Conductivity control can be performed normally. Thereby, safety can be improved.

  The best mode of the switch according to the present invention will be described. In addition, after demonstrating the conceptual structure of this invention, a specific structure is demonstrated, referring drawings.

  As described above, the switch according to the present invention includes an enclosure including the first storage body and the second storage body, an operation unit disposed at the other end of the enclosure, and an operation connected to the operation unit. A stress transmission part, a fixed base disposed inside the outer part, a terminal part including a first terminal body and a second terminal body fixed to the fixed base, and an inner part disposed inside the outer part for operation. A movable base that moves toward the second storage body in response to a pressing operation of the part, and an inter-terminal connection switching unit that includes an inter-terminal connection body fixed to the movable base. The switch according to the present invention further includes a first locking portion formed in the second storage body and a first locked portion formed in the first storage body, and the second storage body is the first engagement member. It is locked to the first storage body by the stopper and the second locked portion. Furthermore, a second locking portion formed on the fixed base and a second locked portion formed on the first storage body are further provided, and the fixed base is formed by the second locking portion and the second locked portion. Locked to the first storage body. Also. The second storage body regulates the movement of the terminal portion to the outside when the locking between the fixed base and the first storage body is released. The switch according to the present invention may be an A contact type switch or a B contact type switch.

  The first storage body and the second storage body in the outer enclosure may be configured to substantially seal the inner space by themselves, or substantially seal the inner space in cooperation with the operation unit. It may be a configuration. Here, substantially sealing means intentionally the inner space and the outer space other than the penetrating part for passing the first terminal body and the second terminal body and the penetrating part for passing the operation stress transmission part. This means that there is no penetrating portion that communicates with each other. The second storage body is configured to substantially close one end of the first storage body. Here, substantially closing means not only the case of completely closing, but also the case of closing so as to form a penetrating portion for allowing the first terminal body and the second terminal body to pass therethrough.

  Specifically, the first locking portion and the first locked portion include a configuration in which one is a locking claw and the other is a locking hole. The locking hole may be a through hole or a recessed hole. The same applies to the second locking portion and the second locked portion.

  The second storage body regulates the movement of the terminal portion to the outside of the outer enclosure when the locking between the fixed base and the first storage body is released. For example, a configuration in which at least a part of the fixed base opposes at least a part of the second storage body in the pressing movement direction, and a facing portion between the fixed base and the second storage body is separated by at least a predetermined gap. The structure which the fixed base | substrate and the 2nd storage body are contacting, without providing a space | gap is mentioned.

  It is preferable that the switch has a configuration in which the movable base is engaged with the operation stress transmission portion, and the movable base is brought into contact with the second container when the operation portion is pressed. In the case of this configuration, even when the operation portion is pressed down by an extremely excessive force, it is possible to prevent the movable base and the operation stress transmission portion from being disengaged by contacting the movable base with the second storage body.

  In the switch, the movable base is engaged with the operation stress transmission portion, and the first terminal body and the second terminal body are electrically connected via the inter-terminal connection body when the operation portion is not pressed, and the operation portion is pressed. When the inter-terminal connecting member is moved in accordance with the operation, the operation unit is electrically disconnected in the pressed state, and the switch is disengaged between the movable base and the operation stress transmitting unit. It is preferable that the structure further includes an urging portion that moves the inter-terminal connection body in a direction to disconnect the electrical connection with the two-terminal body. In the case of this configuration, when the movable base and the operating stress transmission portion are disengaged, the inter-terminal connection body can be forcibly moved in a predetermined direction by the urging force from the urging portion. The movement of the inter-terminal connection body is not limited to the case where the urging portion moves by directly acting on the inter-terminal connection body, but indirectly when the urging portion acts on another member, for example, a movable base. In particular, this implies the case where the inter-terminal connector moves. The direction in which the electrical connection between the first terminal body and the second terminal body is broken is desirably the same direction as the moving direction of the movable base in response to the pressing operation. Thereby, the electrical connection between the first terminal body and the second terminal body can be reliably disconnected.

  Here, the switch according to the present invention will be specifically described with reference to the drawings, taking a B contact type emergency stop switch as an example.

  FIG. 1 is a perspective view illustrating an example of a configuration of a switch according to the present invention. FIG. 2 is a partially exploded perspective view for explaining an example of the configuration of the switch according to the present invention by function. 3 and 4 are exploded perspective views showing the configuration of the switch according to the present invention. FIG. 3 shows a case when viewed from the front, and FIG. 4 shows a case when viewed from the rear. For convenience of explanation, the direction on the operation handle 11 side that is parallel to the central axis of the emergency stop switch is referred to as the front, and the sealing base 51 side is referred to as the rear. In addition, the direction in which the fixed terminal 32 and the fixed terminal 33 face each other and the direction from the fixed terminal 33 toward the fixed terminal 32 is referred to as “upward”, and the opposite direction is referred to as “downward”. The outline of the configuration of the emergency stop switch according to the present invention will be described with reference to FIGS.

  As shown in FIG. 2, the emergency stop switch of the present invention includes a storage case 21 (a kind of [first storage body]) and an operation handle 11 ([operation unit]) engaged with one end of the storage case 21. And a fixed terminal 32 (a kind of [second terminal body]) and a fixed terminal 33 ([a kind of [second terminal body]) according to the operation of the operation handle 11. A locking mechanism 60 ([operation] for transmitting stress that changes the conduction state between the first terminal body] and the fixed terminal 35 ([second terminal body]) and locking in a short circuit state or an open state. A kind of stress transmission section] (see FIG. 3 and FIG. 4). In the short diameter cylindrical portion of the storage case 21, an upper locking through hole 1 (a kind of [first locked portion]) and a lower locking through hole 1 ([first locked portion]). 1) (see FIG. 4), two upper locking through-holes 2 (one kind of [second locked portion]), and two lower locking through-holes ([second locked) Part] (not shown), two notches 21c at the rear end on the upper side, and two notches 21c (some not shown) at the rear end on the lower side.

  The emergency stop switch includes an element unit that includes a fixed terminal portion 30 and an inter-terminal connection portion 40. The fixed terminal portion 30 includes a fixed terminal base 31 (a kind of [fixed base]) and fixed terminals 32 to 35 fixed to the fixed terminal base 31. The fixed terminals 32 to 35 are detachable from the fixed terminal 30. The fixed terminal base 31 has an upper left and right engaging claws 3 (a kind of [second engaging part]) and a lower left and right engaging claws 3 (a kind of [second engaging part]). (Some are not shown). Each locking claw 3 is integrally formed with the fixed terminal base 31. Thereby, the peeling resistance of each locking claw 3 with respect to the fixed terminal base 31 is improved as compared with the case where it is formed by adhesion or the like. On the other hand, the inter-terminal connection section 40 (a kind of [inter-terminal connection switching section]) is disposed in the holder 41 (a kind of [movable base]) and controls the conduction state between the fixed terminal 32 and the fixed terminal 34. The movable terminal 42, the contact-pressure elastic body 43 that urges the movable terminal 42 forward with respect to the holder 41, and the holder 41 for controlling the conduction state between the fixed terminal 33 and the fixed terminal 35. Of the movable terminal 44, a contact pressure elastic body 45 (for example, a coil spring) (a kind of [biasing part]) that biases the movable terminal 44 forward, and a holder disposed in front of the disk part of the holder 41. The elastic body 46 (for example, a coil spring) which urges | biases 41 with respect to the storage case 21 back is comprised. In FIG. 2, the fixed terminal portion 30 and the inter-terminal connection portion 40 are separated in order to clarify a portion that moves according to the pressing operation of the operation handle 11 and a portion that does not move accordingly. Although shown, after these are integrated, it will be assembled to the storage case 21. Specifically, before attaching each fixed terminal 32 to 35 to the fixed terminal base 31, the inter-terminal connection portion 40 is inserted into a predetermined position, and then each fixed terminal 32 to 35 is attached to the fixed terminal base 31. At the same time, the elastic body 46 is integrated by disposing it in front of the disk portion of the holder 41. The element unit integrated in this manner is inserted into the storage case 21 so that the position of the locking claw 3 of the fixed terminal base 31 is aligned with the locking through hole 2 of the storage case 21. And the locking through hole 2 are locked to the storage case 21.

  Further, the emergency stop switch includes a sealing base 51 (a kind of [second storage body]) that substantially closes the rear end of the storage case 21. The sealing base 51 is formed with an upper locking claw 4, a lower locking claw (not shown), and four fitting claws 51 a extending at both the upper and lower ends. Has been. The sealing base 51 is inserted into the storage case 21 so that the position of the locking claw 4 is aligned with the locking through hole 1 of the storage case 21, and the storage case 21 is formed by the locking claw 4 and the locking through hole 1. It is locked to. Four through holes are formed between the storage case 21 and the sealing base 51, and the fixed terminals 32 to 35 protrude rearward from the sealing base 51 through the through holes. The final state assembled as described above is the state shown in FIG. The element unit cannot be detached from the storage case 21 unless the sealing base 51 is detached from the storage case 21. Further, the notch 21c and the fitting claw 51a may be omitted.

  Here, the configuration and operation of the emergency stop switch will be described in detail. 5, FIG. 6 and FIG. 7 are cross-sectional views showing an example of the configuration of the emergency stop switch in the return state, and respectively show the AA ′ cross section, the BB ′ cross section and the CC ′ cross section in FIG. Represents. FIGS. 8, 9 and 10 are cross-sectional views showing an example of the configuration of the emergency stop switch in the locked state, respectively, the AA ′ cross section, the BB ′ cross section and the CC ′ cross section in FIG. A cross section is shown. When the emergency stop switch is in the return state, the fixed terminals 32 and 34 and the fixed terminals 33 and 35 are in a short-circuited state. When the emergency stop switch is in the locked state, they are electrically disconnected. Open state.

  First, the case where the fixed terminal 32 and the fixed terminal 34 are short-circuited by the inter-terminal connector 42 will be described with reference to FIGS. As described above, by inserting the element unit composed of the fixed terminal portion 30 and the inter-terminal connection portion 40 into the storage case 21, the stress receiving shaft 41 a of the holder 41 becomes the stress transmitting shaft of the stress transmitting body 62. It is inserted into the hollow interior of 62 a and is engaged by the engaging claw 41 b of the stress receiving shaft 41 a and the engaging claw 62 b of the stress transmitting body 62. Further, the fixed terminal base 31 and the sealing base 51 are respectively locked to the storage case 21 in a state in which the minimum interval between the opposing portions along the axial direction of the emergency stop switch is separated by a minute interval d.

  The stress transmission body 62 is restricted from moving rearward by a state fixing claw 64 that is biased in the axial direction by the state fixing elastic body 65 disposed on the rear side thereof. The elastic body 61 has returned to its natural length, and the operation handle 11 is in a predetermined position with respect to the stress transmission body 62 in a state where the stress transmission body 62 and the operation handle 11 are separated from each other. Stay on.

  The holder 41 is urged backward by the elastic body 46 and moved backward by the contact pressure elastic body 43 by contact between the fixed contacts 32a and 34a of the fixed terminals 32 and 34 and the movable contact 42a of the inter-terminal connection body 42. However, since the engagement claw 41b of the stress receiving shaft 41a of the holder 41 is engaged with the engagement claw 62b of the stress transmission shaft 62a, the rearward movement is restricted. . As a result, the holder 41 remains in a predetermined position. The fixed contacts 32a and 34a and the movable contact 42a are surely brought into contact with each other with a predetermined contact pressure applied by the urging force of the contact pressure elastic body 43.

  When the operation handle 11 is pressed from this state, the return elastic body 61 starts to shrink, and the interval between the stress transmission body 62 and the operation handle 11 becomes narrow. However, since stress necessary for moving the state fixing claw 64 that has been biased in the axial direction by the state fixing elastic body 65 is not applied for a while, the stress transmission body 62 moves backward. Do not start. When the operation handle 11 is further depressed, the operation handle 11 depresses the stress transmission body 62. The stress transmitting body 62 presses the inclined portion of the state fixing claw 64, and the state fixing claw 64 starts moving away from the axis of the emergency stop switch against the urging force of the state fixing elastic body 65. As a result, the stress transmission body 62 starts moving backward. Further, since the holder 41 is connected to the stress transmission body 62 by the engagement of the engagement claw 41b of the stress receiving shaft 41a and the engagement claw 62b of the stress transmission body 62, the holder 41 also moves the stress transmission shaft 62. Follows and starts moving backward. Even if the movement of the holder 41 is started, the inter-terminal connection body 42 does not move until the contact pressure elastic body 43 returns to the natural length, and the contact between the fixed contacts 32a and 34a and the movable contact 42a is maintained. The Thereafter, when the operation handle 11 is further pressed, the fixed contacts 32 a and 34 a and the movable contact 42 a are not in contact with each other, and the inter-terminal connector 42 moves rearward together with the holder 41. Further, when the operation handle 11 is further pushed down and the tip of the protrusion 62c of the stress transmitting body 62 exceeds the tip of the state fixing claw 64, the state fixing elastic body 65 which has been contracted restores in the axial direction. In response to the force, the state fixing claw 64 starts moving in the axial direction, and accordingly, the stress transmission body 62 also receives an urging force to the rear side. Then, the stress transmission body 62 moves to the rear side and stops by coming into contact with the lock mechanism main body 63, and the holder 41 has the rear end 41 c in contact with the sealing base 51. In this state, the stress transmission body 62 is fixed in a state where it does not move by the state fixing claw 64. Further, since the rear end 41c is configured to come into contact with the sealing base 51, when the operation handle 11 is pressed down by an excessive pressing force, the engaging claw 41b of the stress receiving shaft 41a and the stress transmitting body are pressed. Even if the engagement of the engagement claws 62b of the 62 is likely to be disengaged, the rear end 41c is in contact with the sealing base 51, so that they are prevented from being disengaged. Thereafter, when the pressing operation of the operation handle 11 is stopped, the operation handle 11 receives a restoring force by the restored elastic body 61 that has been contracted, and the stress transmission body 62 and the operation handle 11 are separated from each other. 11 remains in a predetermined position with respect to the stress transmission body 62. As a result, the locked state shown in FIGS.

  Conversely, to return from the locked state to the return state shown in FIGS. 5 to 7, the operator may pull out the operation handle 11 or rotate the operation handle 11. When the operation handle 11 is pulled out, the return state is restored by the reverse operation from the return state to the locked state. When the operation handle 11 is rotated, it returns from the lock state to the return state as described later. The lock mechanism main body 63 is provided with an inclined cam 63a, and an inclined cam (not shown) that is in sliding contact with the inclined cam 63 is provided inside the operation handle 11. As a result, when the operator rotates the operation handle, the return elastic body 61 (for example, a torsion coil spring) whose both ends are connected to the operation handle 11 and the stress transmission body 62 is twisted, and the operation handle 11 is a tilt cam. Move forward by sliding contact. As the operation handle 11 moves forward, the tip of the protrusion 62 c of the stress transmission body 62 exceeds the tip of the state fixing claw 64. When the operator releases his / her hand, the operation handle 11 rotates in the direction opposite to the direction rotated by the operator by the restoring force of the twisted return elastic body 61. This returns to the return state. As described above, returning from the locked state to the return state can be performed by the operator pulling or rotating the operation handle 11.

  With the configuration of the emergency stop switch described above, the load applied to the sealing base 51 is received by the locking claw 4 and the locking through hole 1, and the load via the fixed terminals 32 to 35 is received by the locking claw 3 and the locking. Since it can receive by the through-hole 2, the accumulated load for every latching | locking part can be reduced rather than the conventional case which those loads receive in one specific kind of fixing | fixed part. Thereby, the durability of the emergency stop switch can be improved.

  In the case of the construction of the emergency stop switch described above, even when the locking claw 4 and the locking through hole 1 are disconnected due to their breakage or the like, the locking claw 3 and the locking through hole In order to maintain the state in which the fixed terminals 32 to 35 are fixed to the storage case 21 via the fixed terminal base 31 by the engagement with 2, the conduction control of the emergency stop switch can be normally performed.

  Moreover, if it is the structure of said emergency stop switch, even if it is a case where latching of the latching claw 3 and the latching through-hole 2 comes off, the latching by the latching claw 4 and the latching through-hole 1 is carried out. Since the movement of the fixed terminal portion 30 is regulated by the sealing base 51 fixed by the fixing base 51, the fixed terminals 32 to 35 provided on the fixed terminal portion 30 are allowed to move only by a minute interval d with respect to the storage case 21. The substantially fixed state that is not performed is maintained, and the conduction control of the emergency stop switch can be normally performed. By these, safety can be improved.

  Further, with the configuration of the emergency stop switch described above, even if the operation handle 11 is pressed down by an extremely excessive force, the holder 41 comes into contact with the sealing base 51, so that the engagement claw 41b of the holder 41 and the stress are It can suppress that engagement with the engaging claw 62b of the transmission body 62 disengages.

  Further, with the above emergency stop switch configuration, when the engagement between the holder 41 and the stress transmission body 62 is released, the inter-terminal connection body is forcibly moved rearward by the urging force from the elastic body 46. The fixed terminals 32 to 35 can be reliably shifted to the open state.

  In the above description, the B contact type switch has been described as an example, but the present invention can be applied to an A contact type switch. Also in this case, the same effects as those described above are obtained.

  The present invention can be used for all switches such as an emergency stop button, a safety switch, and a push button switch represented by a selector switch.

The perspective view showing an example of the composition of the switch concerning the present invention. The partial exploded perspective view showing an example of the composition of the switch concerning the present invention. The exploded perspective view seen from the front side showing an example of the composition of the switch concerning the present invention. The exploded perspective view seen from the back side showing an example of the composition of the switch concerning the present invention. Sectional drawing showing the A-A 'cross section of FIG. 1 in a return state. Sectional drawing showing the B-B 'cross section of FIG. 1 in a return state. Sectional drawing showing the C-C 'cross section of FIG. 1 in a return state. Sectional drawing showing the A-A 'cross section of FIG. 1 in a locked state. Sectional drawing showing the B-B 'cross section of FIG. 1 in a locked state. Sectional drawing showing the C-C 'cross section of FIG. 1 in a locked state.

Explanation of symbols

1: Locking through hole (first locked part)
2: Locking through hole (second locked portion)
3: Locking claw (second locking part)
4: Locking claw (first locking part)
10: Operation handle (operation unit)
21: Case (first container)
30: Fixed terminal part (terminal part)
31: Base for fixed terminal (fixed base)
32, 33: Fixed terminal (first terminal body)
34, 35: Fixed terminal (second terminal body)
32a, 33a: Fixed contact 40: Inter-terminal connection part 41: Holder (movable base)
42, 43: Inter-terminal connector 42a: movable contact 43: contact pressure elastic body 46: elastic body (biasing portion)
50: Sealing part (second container)
60: Lock mechanism (operation stress transmission part)
61: Return elastic body 62: Stress transmission body 63: Lock mechanism main body

Claims (3)

An enclosure including a first storage body and a second storage body that substantially closes one end of the first storage body;
An operation unit disposed at the other end of the outer enclosure;
A fixed base disposed inside the outer enclosure, a first terminal body fixed to the fixed base, one end projecting outwardly through the outer enclosure, and fixed to the fixed base; A terminal portion including a second terminal body, one end of which protrudes outwardly through the surrounding portion;
An operation stress transmission unit that is connected to the operation unit and moves toward the second storage body in accordance with a pressing operation of the operation unit;
A movable base disposed inside the outer enclosure and moving toward the second storage body in conjunction with the movement of the operation stress transmission part, and fixed to the movable base, the first terminal body and the first An inter-terminal connection switching unit including an inter-terminal connection body for switching electrical connection between the two terminal bodies;
A switch including
A first locking portion formed in the second storage body;
A first locked portion formed in the first storage body and corresponding to the first locking portion;
A second locking portion formed on the fixed base;
A second locked portion formed in the first storage body and corresponding to the second locking portion;
Further including
The second storage body is locked to the first storage body by the first locking portion and the first locked portion,
The fixed base is locked to the first storage body by the second locking portion and the second locked portion,
The switch, wherein the second housing body restricts the movement of the terminal portion to the outside when the fixed base and the first housing body are unlocked. The movable base engages with the operation stress transmission section;
The switch according to claim 1, wherein the movable base abuts on the second container by a pressing operation of the operation unit. The movable base engages with the operation stress transmission section;
The first terminal body and the second terminal body are electrically connected via the inter-terminal connection body in a non-pressed state of the operation unit, and the inter-terminal connection body according to the pressing operation of the operation unit Is electrically disconnected in the pressed state of the operation unit by the movement of
When the switch is disengaged from the movable base and the operation stress transmission part, the inter-terminal connection body is moved in a direction to disconnect the electrical connection between the first terminal body and the second terminal body. The switch according to claim 1, further comprising an urging portion to be moved.

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