JP6620598B2 - Operation switch - Google Patents

Description

  The present invention relates to an operation switch that connects an operation section and a contact section.

As this type of operation switch, for example, operation switches described in Patent Documents 1 to 3 have been proposed.
These operation switches connect and separate the operation unit and the contact unit from each other by a lock mechanism. Here, the lock mechanism opens / closes the contact of the contact portion in conjunction with the operation of the lock mechanism when the rotatable lock lever is operated from the unlock position to the lock position and from the lock position to the lock release position. By switching, the contact of the contact portion operates normally only when the contact portion is securely locked to the operation portion.

JP 2003-272468 A JP 2003-297169 A JP 2003-308756 A

By the way, in the conventional operation switch described in the above-mentioned Patent Documents 1 to 3, by rotating the lock lever constituting the lock mechanism between the unlock position and the lock position, Are connected and disconnected.
However, in the above-described conventional operation switch, when the operation unit and the contact unit are connected, the operation unit and the contact unit are connected with the lock lever as the unlock position, and in this state, the lock lever is moved from the unlock position to the lock position. It is necessary to rotate.
For this reason, if forgetting to rotate the lock lever from the unlocked position to the locked position, the connection state between the operation unit and the contact unit is not maintained, and the contact unit may fall off from the operation unit. There is.

  Therefore, the present invention has been made paying attention to the problems of the conventional examples described in Patent Documents 1 to 3, and the operation part and the contact part can be easily connected by a single connection operation. It aims at providing the operation switch which can be performed.

  In order to achieve the above object, one aspect of the operation switch according to the present invention includes a contact portion having a contact, an operation portion having an insertion cylinder portion inserted into the contact portion, and the contact between the contact portion and the operation portion. The operation portion is formed with an elastic engagement piece on the outer peripheral surface of the insertion tube portion, and the frame has an insertion hole through which the insertion tube portion is inserted and is elastically engaged. It has a sliding plate that engages with the piece and slides in a direction intersecting the insertion tube portion, and one of the insertion tube portion and the sliding plate facing each other on the opposite side of the elastic engagement piece with the shaft core in between A locking recess is formed on the other side, and a locking projection is formed on the other side.

  According to one aspect of the present invention, by inserting the insertion tube portion of the operation portion into the contact portion via the frame, the operation portion and the contact portion can be connected by a single connection operation.

It is a perspective view which shows 1st Embodiment of the operation switch which concerns on this invention. It is a disassembled perspective view of the state which removed the operation part of FIG. FIG. 2 is an exploded perspective view of FIG. 1. It is a rear view of an operation part. It is a disassembled perspective view which made some frames a cross section. It is the perspective view which made a part of flame | frame of an operation switch the cross section. It is an expansion perspective view of the X section of FIG. It is a side view which shows the state before a lock | rock in which the elastic engagement piece of the operation switch which made the flame | frame part the cross section bent. It is a side view which shows the locked state of the operation switch which made the frame part the cross section.

Next, an embodiment of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic, and the relationship between the thickness and the planar dimensions, the ratio of the thickness of each layer, and the like are different from the actual ones. Therefore, specific thicknesses and dimensions should be determined in consideration of the following description. In addition, it goes without saying that the drawings include portions having different dimensional relationships and ratios.
Further, the embodiment described below exemplifies an apparatus and a method for embodying the technical idea of the present invention, and the technical idea of the present invention includes the material, shape, structure, The layout is not specified as follows. The technical idea of the present invention can be variously modified within the technical scope defined by the claims described in the claims.

A case in which the operation switch is a push button switch will be described in the first embodiment of the present invention.
As shown in FIG. 1, the operation switch 1 as a push button switch includes an operation unit 10, a contact unit 20, and a frame 30 disposed between the operation unit 10 and the contact unit 20.
The operation unit 10 includes a body 11 having a truncated cone shape, an axially movable push button 12 projecting from a small-diameter side end surface of the body 11, and a large-diameter end surface projecting from the body 11. 11 and an insertion tube portion 13 that is integrally fixed to 11. And the trunk | drum 11 and the insertion cylinder part 13 are integrally molded with the synthetic resin material.

The insertion tube portion 13 includes a large-diameter cylindrical portion 14 on the barrel portion 11 side having an external thread 14a formed on the outer peripheral surface, and a small-diameter cylindrical portion integrally formed on the opposite side of the large-diameter cylindrical portion 14 to the barrel portion 11. 15.
When the operation switch 1 is mounted on a mounted portion such as a panel, a tightening nut 14b is inserted into the male screw 14a of the large-diameter cylindrical portion 14 so as to be clamped with the mounted portion interposed therebetween.
As shown in FIGS. 2, 8, and 9, the small-diameter cylindrical portion 15 has a positioning recess in which a pair of elastic engagement pieces 16 are formed in the axial direction at a predetermined distance from the end surface of the large-diameter cylindrical portion 14. 17 is formed. As shown in FIG. 2, each of the pair of elastic engagement pieces 16 is formed so as to be elastically deformable by forming inverted U-shaped slits 16 a in three directions other than the distal end side of the small diameter cylindrical portion 15. Yes. Engagement protrusions 16 b that protrude in the radial direction from the outer peripheral surface of the small diameter cylindrical portion 15 are formed on the outer peripheral surface side of the free end of each elastic engagement piece 16 on the large diameter cylindrical portion side.

Further, as shown in FIG. 3, the small-diameter cylindrical portion 15 has a rectangular shape separated from the end surface of the large-diameter cylindrical portion 14 in a predetermined distance axial direction at a position opposite to the pair of elastic engagement pieces 16 and the central axis. A pair of locking recesses 18 are formed with a flat surface 19 for preventing erroneous mounting formed in the axial direction facing the positioning recess 17.
As shown in FIGS. 8 and 9, the push button 12 is formed with an actuator 12 a that extends through the inside of the body portion 11 and the large diameter cylindrical portion 14 to the central portion in the axial direction of the small diameter cylindrical portion 15. Yes.
On the other hand, as shown in FIG. 3, the contact portion 20 includes a case body 21 made of, for example, a synthetic resin in which a contact mechanism (not shown) is provided. In the case body 21, for example, three operating elements 22 connected to a contact mechanism are movably protruded from an end face facing the operation unit 10. The case body 21 is individually formed with three terminal portions 23 and 24 electrically connected to the contact mechanism on a pair of side surface portions. Further, three elastic engagement pieces 25 and 26 are formed individually protruding above the operation parts 10 at positions above the terminal parts 23 and 24 of the case body 21. As shown in FIG. 3, the elastic engagement pieces 25 and 26 are formed with a through hole 27 at the center. The front end side of the through hole 27 is an engagement recess 28. Further, the ends of the elastic engagement pieces 25 and 26 are projected and extended outward to form a frame receiving portion 29.

Further, as shown in FIGS. 3 and 5, the frame 30 is a case body 31 formed in a flat rectangular parallelepiped shape that is made of, for example, a synthetic resin material and has a low height and extends in a direction orthogonal to the axial direction of the operation unit 10. The case body 31 includes a sliding plate 41 formed of, for example, a synthetic resin material that is slidably held in a direction orthogonal to the axial direction of the operation unit 10.
As shown in FIGS. 8 and 9, the case body 31 has three engagement protrusions that engage with the three engagement recesses 28 on the side surface of the contact body 20 facing the elastic engagement pieces 25 and 26. Portions 33a and 33b are formed. The case body 31 is formed with an insertion hole 34 through which the insertion tube portion 13 of the operation unit 10 is inserted. Further, as shown in FIG. 5, the case body 31 is formed with a storage hole 35 for slidably storing the sliding plate 41 penetrating in the left-right direction above the engaging convex portion 33 a. At the right end side position of the storage hole 35, a retaining engagement recess 36 is formed on each end in the front-rear direction.

Further, as shown in FIG. 5, the right end side of the storage hole 35 of the case body 31 is extended in an inverted L-shaped cross section to form a wide storage portion 37.
Further, as shown in FIG. 3, the positioning recess 17 in the insertion tube portion 13 of the operation portion 10 is engaged at a position corresponding to the space between the engagement protrusions 45 of the sliding plate 41 on the inner peripheral surface of the insertion hole 34 of the case body 31. A positioning projection 38 is formed.
As shown in FIG. 5, the sliding plate 41 is formed integrally with a thin flat plate portion 43 in which an insertion hole 42 facing the insertion hole 34 of the case body 31 is formed, and a right end side of the flat plate portion 43. And a thick pressing portion 44.

In the insertion hole 42, a pair of engagement protrusions 45 that engage with engagement protrusions 16 b formed on the pair of elastic engagement pieces 16 of the insertion cylinder portion 13 in the operation portion 10 on the inner peripheral surface on the pressing portion 44 side. A protrusion is formed in the radial direction. The insertion hole 42 is formed with a pair of locking projections 46 that are locked to the pair of locking recesses 18 of the insertion tube portion 13 of the operation portion 10 on the inner peripheral surface facing the engagement protrusion 45. Yes. Here, the engagement protrusion 45 and the diameter of a circle passing through the front end of the engagement protrusion 45 and the front end of the locking projection 46 are substantially equal to or slightly larger than the outer diameter of the insertion tube portion 13 of the operation unit 10. The protruding length of the locking projection 46 is set. Further, the locking projection 46 is chamfered on the insertion side of the insertion tube portion 13 at the tip thereof so that the insertion tube portion 13 can be easily inserted.
Further, elastic plate portions 48 each having a retaining engagement convex portion 47 that engages with the retaining engagement recess portion 36 of the case body 31 are formed at the front-rear direction end portion on the pressing portion 44 side of the flat plate portion 43. .

  Then, the sliding plate 41 inserts the tip of the flat plate portion 43 into the housing hole 35 of the case body 31 from the wide housing portion 37 side, and the retaining engagement convex portion 47 is connected to the retaining engagement concave portion 36 of the case body 31. By being engaged with the case body 31, the case body 31 is detachably mounted in the housing hole 35. When the sliding plate 41 is attached to the case body 31, the pressing portion 44 of the sliding plate 41 protrudes outward from the right end surface of the wide storage portion 37 as shown in FIGS. 8 and 9. Here, the sliding range of the sliding plate 41 is that the sliding to the left end side is as shown in FIG. 8, the left end surface of the pressing portion 44 is the left end wall of the wide storage portion 37 of the storage hole 35 of the case body 31. As shown in FIG. 9, the step 44 a formed on the lower surface of the pressing portion 44 is formed on the upper end of the elastic engagement piece 26 of the contact portion 20. It is regulated by coming into contact with the left end of the frame receiving portion 29. Then, in a state where the left end of the pressing portion 44 of the sliding plate 41 is in contact with the right side wall of the wide storage portion 37, the tip of the locking projection 46 is the insertion tube portion of the operation portion 10 as shown in FIG. It is set so that it may touch the outer peripheral surface of 13 or slightly outside. Further, as shown in FIG. 9, the elastic engagement of the insertion tube portion 13 with the stepped portion 44 a of the sliding plate 41 in contact with the left end surface of the frame receiving portion 29 of the elastic engagement piece 26 of the contact portion 20. The joining piece 16 is not elastically deformed, and the locking projection 46 of the sliding plate 41 is locked to engage with the locking recess 18 of the insertion tube portion 13.

Next, a method for assembling the operation switch 1 of the above embodiment will be described.
First, as shown in FIG. 3, the operation part 10, the contact part 20, and the flame | frame 30 shall be isolate | separated. In this state, the tightening nut 14b of the operation portion 10 is removed, and the insertion tube portion 13 is inserted into one of the insertion holes formed in a mounting portion such as a panel (not shown) from the front side, for example. Next, the operating portion 10 is fixed to the mounted portion by screwing and tightening the tightening nut 14b from the back surface side to the male screw 14a protruding from the back surface side of the mounted portion of the insertion tube portion 13.
After or before that, the frame 30 in which the sliding plate 41 is slidably assembled to the contact portion 20 is mounted. As shown in FIG. 3, the frame 30 is mounted by pressing the frame 30 against the upper surface of the contact portion 20 with the frame 30 facing the upper side of the contact portion 20. That is, when the frame 30 is pressed to the upper surface side of the contact portion 20, the elastic engagement pieces 25 and 26 of the contact portion 20 bend outward as shown in FIGS. 8 and 9, and the engagement convex portion 33 a of the case body 31. Engages with the engagement recesses 28 of the elastic engagement pieces 25 and 26 of the contact portion 20. At the same time, the lower surface of the case body 31 comes into contact with the upper surface of the frame receiving portion 29, and the frame 30 is fixed on the contact portion 20 so as not to be pulled out, as shown in FIG.

  In this state where the contact portion 20 and the frame 30 are integrated, the insertion hole 34 of the frame 30 is opposed to the insertion tube portion 13 of the operation unit 10 attached to the attached portion. At this time, the positioning concave portion 17 formed in the insertion cylinder portion 13 and the positioning convex portion 38 formed in the insertion hole 34 of the frame 30 are opposed to each other. Thus, since the positioning recess 17 and the positioning protrusion 38 correspond one-to-one, when the positioning recess 17 and the positioning protrusion 38 are misaligned, the insertion tube portion 13 is attached to the frame 30. It cannot be inserted into the insertion hole 34, and erroneous mounting can be prevented.

Then, when the insertion tube portion 13 of the operating portion 10 is inserted into the insertion hole 34 of the frame 30 with the positioning recess 17 and the positioning protrusion 38 facing each other, the elastic engagement formed on the insertion tube portion 13 is initially inserted. Since the engagement protrusion 16b of the joining piece 16 does not contact the insertion hole 34, the insertion tube portion 13 can be smoothly inserted into the insertion hole 34.
Thereafter, when the distal end of the insertion tube portion 13 reaches the position of the engagement protrusion 45 and the engagement protrusion 46 formed in the insertion hole 42 of the sliding plate 41, as shown in FIG. Since the chamfered portion is formed on the insertion side of the insertion tube portion 13, the distal end of the insertion tube portion 13 engages with the chamfer portion, and the sliding plate 41 is slid leftward so that the insertion tube portion 13 is engaged. It passes through the inner periphery of the stop projection 46 and the engagement protrusion 45 and is inserted into the insertion hole 34 on the lower side of the frame 30.

When the engagement protrusion 16b of the elastic engagement piece 16 of the insertion tube portion 13 comes into contact with the insertion hole 34 of the case body 31 of the frame 30, the elastic engagement piece 16 is inward as shown in FIG. The insertion tube portion 13 is pushed in as it is, and the engagement protrusion 16b of the elastic engagement piece 16 comes into contact with the engagement protrusion 45 of the sliding plate 41. At this time, the locking convex portion 46 of the sliding plate 41 is only partially opposed to the locking concave portion 18 of the insertion tube portion 13, and the sliding plate 41 cannot slide to the right.
After that, when the insertion tube portion 13 is further pushed in and the locking projection 46 of the sliding plate 41 faces the locking recess 18 of the insertion tube portion 13, as shown in FIG. The sliding plate 41 is moved to the right by the elastic force of the elastic engagement piece 16, and the locking projection 46 is inserted into the locking recess 18 to be locked. The rightward movement of the sliding plate 41 is restricted by a stepped portion 44 a formed at the lower end of the pressing portion 44 coming into contact with the left end of the frame receiving portion 29 formed at the upper end of the elastic engagement piece 26 of the contact portion 20. The

As described above, the attachment of the contact portion 20 and the frame 30 to the operation portion 10 is only performed so that the insertion tube portion 13 is inserted into the insertion hole 34 of the frame 30 in a state where the contact portion 20 and the frame 30 are integrated. The operation part 10, the contact part 20, and the frame 30 can be integrated by one connection operation.
Further, in order to remove the contact part 20 and the frame 30 from the locked state of FIG. 9 in which the operation part 10, the contact part 20 and the frame 30 are integrated, the pressing part 44 of the sliding plate 41 is pressed from the outside and slid. The plate 41 is moved to the left against the elastic force of the elastic engagement piece 16 of the insertion tube portion 13. As a result, as shown in FIG. 8, the elastic engagement piece 16 of the insertion tube portion 13 is bent to the left and the tip of the engagement protrusion 16 b is positioned along the inner peripheral surface of the insertion hole 34 of the case body 31. Then, the locking convex portion 46 of the sliding plate 41 is released to the left from the locking concave portion 18 of the insertion tube portion 13 to be unlocked.

By pulling out the contact portion 20 and the frame 30 while maintaining this unlocked state, the contact portion 20 and the frame 30 can be pulled out from the operation portion 10 by a single pulling operation.
Therefore, according to the said embodiment, the operation part 10, the contact part 20, and the flame | frame 30 can be reliably made into a locked state by one push operation with mounting | wearing of the contact part 20 and the flame | frame 30 with respect to the operation part 10. FIG.
In addition, it is not necessary to provide an elastic member such as a return spring as a separate member in the locked state, and the function of the return spring can be provided by the elastic engagement piece 16 formed on the insertion tube portion 13 of the operation portion 10. Thus, the number of parts can be reduced, and the number of assembling steps can be reduced.

Similarly, when the contact portion 20 and the frame 30 are removed from the operation portion 10, the contact portion 20 and the frame 30 are inserted into the insertion tube portion 13 of the operation portion 10 while maintaining the unlocked state in which the sliding plate 41 is moved to the left. It can be removed by a single pull-out operation.
In addition, although the said embodiment demonstrated the case where the elastic engagement piece 16 formed a pair on both sides of the positioning recessed part 17, it is not limited to this, The elastic engagement piece 16 is formed 1 or 3 or more. You may do it. The elastic engagement piece 16 may be formed with a U-shaped slit so that the base is on the upper side and the engagement protrusion is on the lower side. It may be arranged on the side, that is, the contact portion 20 side.

Moreover, although the said embodiment demonstrated the case where the latching recessed part 18 was formed in the insertion cylinder part 13, and the latching convex part 46 was formed in the sliding plate 41, it is not limited to this, An insertion cylinder A locking projection may be formed on the portion 13 and a locking recess may be formed on the sliding plate 41. Further, the engagement protrusion 45 of the sliding plate 41 may be omitted, and the engagement protrusion 16 b of the elastic engagement piece 16 may be in direct contact with the inner peripheral surface of the insertion hole 42.
Moreover, although the said embodiment demonstrated the case where the contact part 20 and the flame | frame 30 were comprised separately, it is not limited to this, As the contact part 20 and the flame | frame 30 are comprised integrally. Also good.

Moreover, although the said embodiment demonstrated the case where the insertion cylinder part 13 of the operation part 10 was formed in cylindrical shape, the small diameter cylindrical part 15 can also be formed in square cylinder shapes, such as a square cylinder and a hexagonal cylinder. In this case, the insertion hole 34 of the frame 30 may be changed to a shape that can be inserted according to the shape of the small diameter cylindrical portion 15.
In the above embodiment, the case where the present invention is applied to a push button switch as an operation switch has been described. However, the present invention is not limited to this, and an emergency stop push button switch, selector switch, multi-directional switch, key The present invention can be applied to various operation switches such as switches.

  DESCRIPTION OF SYMBOLS 1 ... Operation switch, 10 ... Operation part, 11 ... Trunk part, 12 ... Push button, 13 ... Insertion cylinder part, 14 ... Large diameter cylindrical part, 15 ... Small diameter cylindrical part, 16 ... Elastic engagement piece, 16a ... Reverse U Character-shaped slit, 16b ... engagement protrusion, 18 ... locking recess, 20 ... contact part, 21 ... case body, 22 ... actuator, 23,24 ... terminal part, 25,26 ... elastic engagement piece, 28 ... engagement Joint recess 29 ... Frame receiving portion 30 ... Frame 31 ... Case body 33a, 33b ... engagement convex portion 34 ... insertion hole 35 ... housing hole 36 ... detent locking engagement recess 37 ... wide storage portion , 41 ... sliding plate, 42 ... insertion hole, 43 ... flat plate part, 44 ... pressing part, 45 ... engagement protrusion, 46 ... locking convex part, 47 ... retaining engagement convex part

Claims (5)

A contact portion having a contact;
An operation part having an insertion cylinder part inserted into the contact part;
A frame fixedly disposed on the contact portion between the contact portion and the operation portion,
The operation portion has an elastic engagement piece formed on an outer peripheral surface of the insertion tube portion,
The frame has an insertion hole through which the insertion cylinder part is inserted, and a sliding plate that engages with the elastic engagement piece and slides in a direction intersecting the insertion cylinder part,
A locking recess is formed in one of the insertion tube portion and the sliding plate facing each other on the opposite side of the elastic engagement piece, and the other is a locking that is locked in the locking recess. An operation switch having a convex portion.   The frame has a flat storage hole through which the sliding plate is inserted, and the sliding plate protrudes from the storage hole in a locked state in which the locking recess is locked to the locking projection. The operation switch according to claim 1, further comprising a pressing portion that performs the operation.   The said sliding plate is formed with the engagement protrusion which engages with the said elastic engagement piece in the internal peripheral surface facing the said elastic engagement piece of the said insertion hole. Operation switch.   The elastic engagement piece is surrounded by slits formed on the insertion tube portion in three directions except for one end in the axial direction, and protrudes from an outer peripheral surface of the insertion tube portion at a free end of the insertion hole of the sliding plate. The operation switch according to any one of claims 1 to 3, wherein an engagement protrusion that presses the periphery is formed. Wherein the the sliding plate and the frame, which is prevented from engaging recess omission one is formed, characterized in that the retaining engagement protrusion omission engages the stop engaging recess omission wherein the other is formed Item 5. The operation switch according to any one of Items 1 to 4.

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