JP6523211B2 - Terminal device and terminal device set - Google Patents

Description

  The present invention relates to a terminal device and a terminal device set.

  DESCRIPTION OF RELATED ART Conventionally, in apparatuses, such as a pushbutton switch, a selection switch, and an indicator lamp, the terminal device attached to an operation part is used. For example, Patent Document 1 discloses a contact portion which is a terminal device connected to the back of a push button operation portion. At the contact portion, the terminal screw is screwed into the female screw of the terminal fitting having the fixed contact, and the wire terminal is held between the terminal screw and the terminal fitting. The contact portion has a terminal screw automatic return structure. Specifically, there is provided a return compression coil spring that abuts against a washer that holds the terminal screw, and when the terminal screw is unscrewed from the terminal fitting, the terminal screw and the washer become terminals by the restoring force of the return compression coil spring. Away from the fitting, a sufficient gap for inserting the wire terminal is formed between the terminal screw and the terminal fitting.

  In the terminal device, a finger protection portion is provided on the rear surface of the housing body. The finger protect portion prevents a finger from touching the terminal screw in a state of being screwed into the terminal fitting. The finger protection portion is formed of an insulator and is provided with an opening for inserting a driver for rotating the terminal screw. The movement of the terminal screw moved in the direction away from the terminal fitting by the return compression coil spring is stopped by the insertion of the screw head into the opening. That is, the finger protect portion doubles as a stopper function when the terminal screw is detached.

Japanese Patent Application Laid-Open No. 9-129277

  By the way, in the terminal device of Patent Document 1, the screw head is exposed from the opening of the finger protect portion in a state where the terminal screw is separated from the terminal fitting (that is, the fixed terminal) fixed to the housing main body The terminal screw can be easily touched with a finger. Therefore, in order to make it impossible to easily touch the terminal screw even when the terminal screw is separated from the fixed terminal, it is necessary to position the terminal screw forwardly from the rear surface of the housing body.

  If the terminal screw is arranged on the front side without increasing the size of the terminal device, the fixed terminal arranged on the front side of the terminal screw will be miniaturized, and it is also difficult to increase the thickness of the housing body Therefore, the fixing strength between the fixing terminal and the housing body may be reduced. When the fixing strength of the fixed terminal to the housing main body decreases, when the terminal screw is screwed to the fixed terminal and tightened, the rotational torque of the terminal screw transmitted to the fixed terminal causes the fixed terminal to rotate with respect to the housing main body. There is a possibility that a conduction failure or contact chattering may occur due to deviation from a predetermined position.

  The present invention is made in view of the above-mentioned subject, and when screwing a terminal screw to a screw hole of fixed terminal, it aims at controlling that a fixed terminal rotates by rotation of a terminal screw.

The invention according to claim 1 is a terminal device, wherein one terminal screw, a plate-like fixed terminal having a screw hole screwable with the terminal screw, and an insulator made of an insulator for holding the fixed terminal. A housing main body, a moving part projecting forward from the front surface of the housing main body and moving in the front-rear direction, and a contact position contacting the fixed terminal with the movement of the moving part in the front-rear direction; A fixed terminal and a movable terminal moving between the spaced apart position, the fixed terminal having the screw hole in which the terminal screw is screwed from the rear side, and a screw hole plate portion expanding in the left and right direction; A side plate portion extending forward from one end of the screw hole plate portion in the left-right direction along the side surface of the housing main body, the side surface of the housing main body being a main body case attached to the housing main body Covered , The side plate portion, at a position away from the connection portion with the screw hole plate portion, having a side plate engaging portion is a cut-away or holes to be engaged with the main body case.

  The invention according to claim 2 is the terminal device according to claim 1, wherein the side plate engaging portion is located at the front end portion of the side plate portion.

  The invention according to claim 3 is a terminal device, wherein one terminal screw, a plate-like fixed terminal having a screw hole that can be screwed with the terminal screw, and an insulator made of an insulator that holds the fixed terminal. A housing main body, a moving part projecting forward from the front surface of the housing main body and moving in the front-rear direction, and a contact position contacting the fixed terminal with the movement of the moving part in the front-rear direction; A fixed terminal and a movable terminal moving between the spaced apart position, the fixed terminal having the screw hole in which the terminal screw is screwed from the rear side, and a screw hole plate portion expanding in the left and right direction; A side plate portion extending forward from one end of the screw hole plate portion in the left-right direction along the side surface of the housing body, and a front end portion of the side plate portion extending in the left-right direction along the front surface of the housing body A front plate portion; It said front face of the managing body, the covered by the main body case to be attached to the housing body, the front plate has the plate-engaging portion before a cut-out or hole for engagement with the body case.

  The invention according to claim 4 is the terminal device according to claim 3, wherein the side surface of the housing main body is also covered by the main body case, and the side plate portion is engaged with the main body case. Or it has a side plate engaging portion which is a hole.

  The invention according to claim 5 is the terminal device according to any one of claims 1 to 4, wherein the fixed terminal is the side plate at an end on the one side in the left-right direction of the screw hole plate portion. A pair of fixed terminal projections which are disposed apart from the side plate at both sides in the width direction of the part and which project in a direction inclining with respect to the screw hole plate and the side plate; At the other end in the left-right direction, it is arranged apart from the plate on both sides in the width direction of the plate that extends from the other end, and is inclined with respect to the screw hole plate and the plate And a main wall extending parallel to the front and rear direction and the left and right direction, and the main wall extending perpendicularly to the main wall from the main wall, A protrusion housing sandwiching the pair of fixed terminal protrusions Provided with a door.

  The invention according to claim 6 is the terminal device according to any one of claims 1 to 5, wherein the housing main body extends from the main wall extending in parallel in the front-rear direction and the left-right direction. And a side plate accommodating portion extending vertically to the main wall portion and sandwiching the side plate portion.

  The invention according to claim 7 is the terminal device according to any one of claims 1 to 6, further comprising the main body case, wherein the main body case covers a surface excluding the rear surface of the housing main body.

Invention of claim 8, a terminal device set, comprising: a normally-open first terminal device, and a normally closed second terminal device is a terminal device according to claim 4, wherein said The one-terminal device includes a first terminal screw, a plate-like first fixed terminal having a screw hole screwable with the first terminal screw, and a connecting member made of an insulator that holds the first fixed terminal. And a first moving portion projecting forward from the front surface of the first housing body and moving in the front-rear direction, and the first fixed terminal along with the movement of the first moving portion in the front-rear direction And a first moving terminal moving between the first fixed terminal and a separated position separated from the first fixed terminal, the first fixed terminal being screwed with the first terminal screw from the rear side A first screw hole plate portion having the screw hole and extending in the left and right direction; A first side plate portion extending forward along the side surface of the first housing body from an end of one side in the lateral direction of the first screw hole plate portion, on the other side in the lateral direction of the first screw hole plate portion And a first fixed contact plate portion extending from an end , wherein the side surface of the first housing main body is covered by a first main body case attached to the first housing main body, and the first side plate portion is the first A first side plate engaging portion which is a notch or a hole engaged with the first main body case is provided at a position apart from the connecting portion with the screw hole plate portion, in the first terminal device, the first movement In the state where the unit is at the first position, the first movable terminal is separated from the first fixed terminal, and the first movable unit is positioned at the second position behind the first position. in the first fixed contact plate of said first mobile terminal is the first fixed terminal And the movable terminal is in contact with the front plate portion which is a fixed contact plate portion of the fixed terminal in the state where the movable portion is positioned at the first position in the second terminal device. The movable terminal is separated from the front plate portion of the fixed terminal in a state of being positioned at a second position on the rear side of the first position, and the shape of the first side plate engaging portion of the first terminal device and The relative position with respect to the first housing body is the same as the shape of the side plate engaging portion of the second terminal device and the relative position with respect to the housing body, and is attached to the first housing body of the first terminal device A first body case is attachable to the housing body of the second terminal device.

  The invention according to claim 9 is a terminal device, wherein one terminal screw, a plate-like fixed terminal having a screw hole screwable with the terminal screw, and an insulator made of an insulator for holding the fixed terminal. A housing main body, a moving part projecting forward from the front surface of the housing main body and moving in the front-rear direction, and a contact position contacting the fixed terminal with the movement of the moving part in the front-rear direction; A fixed terminal and a movable terminal moving between the spaced apart position, the fixed terminal having the screw hole in which the terminal screw is screwed from the rear side, and a screw hole plate portion expanding in the left and right direction; A side plate portion extending forward from one end of the screw hole plate in the left-right direction along the side surface of the housing main body, and the side plate at the one end of the screw hole plate in the left-right direction; From the side plate section on both sides in the width direction of the section Between the screw hole plate portion and a pair of fixed terminal projection portions protruding in a direction inclining with respect to the side plate portion, or the other end of the screw hole plate portion in the left-right direction And a pair of fixed terminal protrusions which are disposed apart from the plate portion on both sides in the width direction of the plate portion extending from the other end and are separated from the screw hole plate and the plate portion. A main wall extending parallel to the front and rear direction and the left and right direction, and a protrusion extending vertically from the main wall to the main wall and sandwiching the pair of fixed terminal protrusions therebetween. And a housing portion.

  The invention according to claim 10 is the terminal device according to claim 9, wherein the fixed terminal is the plate portion extending from the other end of the screw hole plate portion. The mobile terminal is in contact with the stationary contact plate portion of the stationary terminal in a state where the movable terminal is positioned at the contact position, and the pair of stationary terminal protrusions are disposed on both sides in the width direction of the stationary contact plate portion. Ru.

  The invention according to an eleventh aspect is the terminal device according to the tenth aspect, wherein the pair of fixed terminal protrusion portions project in a direction in which the screw hole plate portion is inclined rearward.

  The invention according to claim 12 is the terminal device according to claim 11, wherein the pair of fixed terminal protrusions are inclined to the other side in the left-right direction than a direction perpendicular to the screw hole plate portion. .

  The invention according to claim 13 is the terminal device according to any one of claims 9 to 12, wherein the housing main body extends from the main wall extending in parallel in the front-rear direction and the left-right direction. And a side plate accommodating portion extending vertically to the main wall portion and sandwiching the side plate portion.

  The invention according to claim 14 is the terminal device according to any one of claims 9 to 13, further comprising a main body case attached to the housing main body and covering a surface other than the rear surface of the housing main body.

  The invention according to claim 15 is a terminal device, which is a connection made of an insulator that holds a terminal screw, a plate-like fixed terminal having a screw hole screwable with the terminal screw, and the fixed terminal. A housing main body, a moving part projecting forward from the front surface of the housing main body and moving in the front-rear direction, and a contact position contacting the fixed terminal with the movement of the moving part in the front-rear direction; A fixed terminal and a movable terminal moving between the spaced apart position, the fixed terminal having the screw hole in which the terminal screw is screwed from the rear side, and a screw hole plate portion expanding in the left and right direction; A main wall extending in parallel to the front and rear direction and the left and right direction, and a side plate extending to the front along the side surface of the housing main body from an end on one side in the left and right direction of the screw hole plate; And the front from the main wall It spreads perpendicular to the main wall, and a side plate accommodating part sandwiching the side plate portion.

  The invention according to claim 16 is the terminal device according to claim 15, wherein the side plate accommodating portion covers a portion on one side in the width direction of the side plate portion, and the one side in the width direction of the side plate portion. The side is the front side in the rotational direction of the terminal screw when the terminal screw is screwed to the screw hole plate portion.

  The invention according to claim 17 is the terminal device according to claim 16, wherein a region on the other side in the width direction of the side plate portion is covered by a main body case attached to the housing main body.

  The invention according to claim 18 is the terminal device according to any one of claims 15 to 17, further comprising a main body case attached to the housing main body and covering a surface other than the rear surface of the housing main body.

  In the present invention, it is possible to suppress the rotation of the fixed terminal due to the rotation of the terminal screw.

It is a top view of the terminal unit concerning a 1st embodiment. It is a perspective view of a terminal unit. It is a top view of a terminal main part. It is a perspective view of a terminal main part. It is a perspective view of a fixed terminal. It is a perspective view of the terminal device which omitted a part of main part case. It is a top view of the terminal main part of the terminal unit concerning a 2nd embodiment. It is a perspective view of a terminal main part. It is a perspective view of a fixed terminal. It is a perspective view of the terminal device which omitted a part of main part case. It is a perspective view of the terminal device which omitted a part of main part case. It is a perspective view of a switch device.

  FIG. 1 is a plan view of a terminal device 1 according to a first embodiment of the present invention. FIG. 2 is a perspective view of the terminal device 1. In the following description, the upper and lower sides in FIG. 1 will be referred to as “front side” and “rear side”, respectively, and the right and left sides in FIG. 1 will be referred to simply as “right side” and “left side”. Further, the near side in the direction perpendicular to the paper surface in FIG. 1 is called “upper side”, and the far side is called “lower side”. In addition, the front-back direction in the following description, the left-right direction, and the up-down direction do not show the positional relationship or direction when the terminal device 1 is actually attached.

  The terminal device 1 is attached to the operation unit or the like of the switch device, and switches between conduction and non-conduction of current to the operation unit. The terminal device 1 is also called a contact block or a contact block. The terminal device 1 includes a main body case 2 and a main body portion 3. The main body case 2 is attached to the main body portion 3 and covers the main body portion 3. In the following description, the main body 3 is referred to as the “terminal main body 3”.

  The main body case 2 includes a case portion 21 and a pair of case locking portions 22. The case portion 21 is a substantially rectangular parallelepiped member whose rear side is open. By inserting the terminal body 3 from the opening of the case 21, the body case 2 is attached to the terminal body 3. Thereby, terminal device 1 can be manufactured easily. The terminal body 3 is covered by a case 21. Specifically, the case portion 21 covers the front surface, the left and right side surfaces, the upper surface and the lower surface of the terminal main body portion 3. In other words, the case portion 21 covers the surface excluding the rear surface of the terminal body portion 3. The pair of case locking portions 22 project forward from the left and right sides of the case portion 21. When the above-described operation unit or the like is sandwiched between the pair of case locking units 22, the case unit 21 is fixed to the operation unit or the like. The operation unit and the like are attachment objects to which the main body case 2 and the terminal main body 3 are attached.

  FIG. 3 is a plan view of the terminal main body 3. FIG. 4 is a perspective view of the terminal main body 3. That is, FIGS. 3 and 4 are views of the terminal device 1 excluding the main body case 2. The terminal main body portion 3 has, for example, a substantially trapezoidal shape in which the width in the left-right direction gradually increases as going from the front to the rear in a plan view. The terminal body 3 includes two terminal screws 31, two fixed terminals 32, a housing body 33, a moving portion 34, and a moving terminal 35. As shown in FIGS. 1 and 2, when the main body case 2 is attached to the terminal main body portion 3, the tip end portion (i.e., the front end portion) of the moving portion 34 is from an opening provided on the front surface of the case portion 21. Project forward.

  As shown in FIGS. 3 and 4, the moving unit 34 and the moving terminal 35 are disposed substantially at the center in the left-right direction of the terminal body 3. The two terminal screws 31 are disposed on the right and left sides of a center line passing through the center of the terminal body 3 in the left-right direction. The two fixed terminals 32 are also disposed to the right and left of the center line passing through the center of the terminal body 3 in the left-right direction. The two fixed terminals 32 are arranged at substantially symmetrical positions with respect to the center line. The two terminal screws 31 have the same structure as each other. The two fixed terminals 32 also have the same structure as each other.

  The terminal screw 31 is disposed such that the screw head is on the rear side and the tip is directed to the front. The axial direction of the terminal screw 31 is directed inward in the left-right direction from the rear side toward the front side. In other words, the axial direction of the terminal screw 31 approaches the above-mentioned central axis in the left-right direction as it goes from the rear side to the front side. The fixed terminal 32 is a plate-like conductive member disposed in front of the terminal screw 31. The fixed terminal 32 has a screw hole 321 that can be screwed to the terminal screw 31. In the example shown in FIG. 3, the left terminal screw 31 in the drawing is screwed into the screw hole 321 of the fixed terminal 32. Further, the terminal screw 31 on the right side in the drawing is not screwed into the screw hole 321 of the fixed terminal 32.

  In the terminal device 1, the crimp terminal etc. is electrically connected to the fixed terminal 32 by screwing the terminal screw 31 into the screw hole 321 of the fixed terminal 32 with the crimp terminal etc. not shown interposed therebetween. . Crimp terminals and the like are inserted in the vicinity of the terminal screw 31 and the fixed terminal 32 through the terminal opening 211 on the upper surface of the case 21 shown in FIGS. 1 and 2 or the terminal opening 212 on the side of the case 21. .

  The housing main body 33 shown in FIG. 3 and FIG. 4 is an integral member made of an insulator (for example, resin). In other words, the housing main body 33 is a member integrally formed of an insulator. The housing main body 33 is a substantially rectangular parallelepiped member having an upper surface portion 331, a lower surface portion 332, a front surface portion 333, a rear surface portion 334, and side surface portions 335 on both left and right sides. The lower surface portion 332 of the housing body 33 is a main wall extending in parallel in the front-rear direction and the left-right direction. The rear surface portion 334 of the housing main body 33 is provided with a screw opening 336 for inserting a driver for rotating the terminal screw 31.

  The housing body 33 holds two fixed terminals 32. The fixed terminal 32 is, for example, fitted (for example, press-fitted) from the upper side of the housing body 33 and fixed to the housing body 33 in a state of being in contact with the lower surface portion 332 of the housing body 33 which is a main wall. The housing body 33 also holds two terminal screws 31. The terminal screw 31 is held by the housing main body 33 movably in the axial direction of the terminal screw 31 via, for example, a screw housing main body 311 which rotatably holds the terminal screw 31. In the terminal device 1 illustrated in FIG. 3, the terminal screw 31 is pushed rearward by an elastic member (not shown). Therefore, when the screwing of the terminal screw 31 to the fixed terminal 32 is released, the terminal screw 31 is pushed rearward by the elastic member, and the position of the right terminal screw 31 in FIG. Move to the evacuation position.

  The protection class of the terminal device 1 shown in FIG. 1 is IP20. In the terminal device 1, in a state in which the terminal screw 31 is screwed into the screw hole 321, a fingertip of a person handling the terminal device 1 may fix the fixed terminal via, for example, the screw opening 336, the terminal opening 211 and the terminal opening 212. It is prevented that 32 and the terminal screw 31 are touched. Further, in the terminal device 1, even when the terminal screw 31 is in the retracted position described above, the terminal screw 31 is disposed relatively on the front side in the terminal main body 3, and the terminal screw 31 and the rear of the housing main body 33 Since the face portion 334 is relatively separated, the fingertip of the person who handles the terminal device 1 is prevented from touching the terminal screw 31 through the screw opening 336.

  The moving unit 34 protrudes forward from the front surface of the housing body 33 and moves in the front-rear direction. The moving terminal 35 is a plate-like conductive member disposed rearward of the tip of the moving unit 34. The moving terminal 35 moves between a contact position where it is in contact with the fixed terminal 32 and a separated position where it is separated from the fixed terminal 32 as the moving part 34 moves in the front-rear direction. FIGS. 3 and 4 show a state in which the moving unit 34 is located at a predetermined first position and the moving terminal 35 is located at the separated position. When the moving terminal 35 is in the separated position, the moving terminal 35 is not in contact with the two fixed terminals 32, and the non-conductive state is established between the two fixed terminals 32.

  When the moving unit 34 moves rearward from the first position shown in FIG. 3 and is positioned at the second position behind the first position, the moving terminal 35 also moves rearward and is positioned at the contact position. , And contact with two fixed terminals 32. In the state where the moving terminal 35 is located at the contact position, the two fixed terminals 32 are in the conductive state via the moving terminal 35. The moving part 34 is pushed forward by an elastic member (not shown), and in the state where no other force is applied, the moving part 34 and the moving terminal 35 are respectively at the first position and the separated position described above. To position. That is, the terminal device 1 is a normally open (i.e., NO type) terminal device in which the two fixed terminals 32 are nonconductive in a normal state.

  FIG. 5 is a perspective view of the fixed terminal 32. FIG. The fixed terminal 32 includes a screw hole plate portion 322, a side plate portion 323, a fixed contact plate portion 324, and a pair of fixed terminal protrusion portions 325. The fixed terminal 32 is formed by deforming a substantially strip-shaped base member by press processing or the like, and the fixed contact plate portion 324, the screw hole plate portion 322 and the side plate portion 323 are continuous. In the following description, the direction in which the fixed contact plate portion 324, the screw hole plate portion 322, and the side plate portion 323 are continuous is referred to as "longitudinal direction", and the direction perpendicular to the longitudinal direction is referred to as "width direction". The width direction of the fixed terminal 32 is substantially parallel to the above-described vertical direction. The same applies to the fixed terminal 32a described later.

  As shown in FIG. 5, the screw hole plate portion 322 is a substantially plate-like portion that spreads in the left-right direction, and has the above-described screw holes 321. The screw hole plate portion 322 extends substantially perpendicularly to the axial direction of the terminal screw 31 (see FIGS. 3 and 4). The terminal screw 31 is screwed into the screw hole 321 of the screw hole plate portion 322 from the rear side. The width in the width direction of the screw hole plate portion 322 is approximately constant over substantially the entire length in the longitudinal direction.

  The side plate portion 323 is a substantially plate-like portion that extends forward along the side surface of the housing main body 33 (see FIGS. 3 and 4) from an end portion on one side of the screw hole plate portion 322 in the left-right direction. The width of a portion near the screw hole plate portion 322 of the side plate portion 323 is smaller than the width of the screw hole plate portion 322. At the front end portion of the side plate portion 323, a side plate engaging portion 326 which is a substantially rectangular notch is provided. The fixed contact plate portion 324 is a substantially plate-like portion (i.e., a plate portion) extending in the left-right direction from the other end of the screw hole plate portion 322 in the left-right direction. The width of the fixed contact plate portion 324 is smaller than the width of the screw hole plate portion 322.

  At the other end of the screw hole plate portion 322 in the lateral direction of the screw hole plate portion 322, the pair of fixed terminal protrusion portions 325 is fixed contact plate portion 324 on both sides in the width direction of the fixed contact plate portion 324 (that is, both sides in the front and rear direction). Are spaced apart from The pair of fixed terminal protrusions 325 project in a direction inclined with respect to the screw hole plate portion 322 and the fixed contact plate portion 324. In the fixed terminal 32, the width of the portion where the pair of fixed terminal protrusions 325 are provided is approximately the same as the width of the screw hole plate portion 322.

  Preferably, the pair of fixed terminal protrusions 325 project in a direction inclined rearward with respect to the screw hole plate portion 322. More preferably, the pair of fixed terminal protrusions 325 inclines to the other side in the left-right direction more than the direction perpendicular to the screw hole plate portion 322. In other words, the pair of fixed terminal protrusions 325 is on the rear side of the first virtual plane when it is assumed that the screw hole plate 322 is extended in parallel to the screw hole plate 322 to the other side in the left-right direction. A space between a second virtual plane extending from the other end of the screw hole plate 322 to the rear perpendicular to the screw hole plate 322 and the first virtual plane. It is further preferable to project toward.

  In the right fixed terminal 32 in FIG. 3 and FIG. 4, the fixed contact plate 324 extends substantially in parallel in the left-right direction, and the screw hole plate 322 is rightward and forward from the right end of the fixed contact plate 324 Spread out. Further, the side plate portion 323 extends leftward and forward along the right side surface of the housing body 33 from the right end portion of the screw hole plate portion 322. The side plate portion 323 is substantially perpendicular to the screw hole plate portion 322. The pair of fixed terminal protrusion portions 325 is disposed apart from the fixed contact plate portion 324 on both sides in the width direction of the fixed contact plate portion 324 at the left end of the screw hole plate portion 322. The pair of fixed terminal projections 325 project rearward from the screw hole plate 322 substantially in parallel in the front-rear direction.

  Further, in the fixed terminal 32 on the left side in the figure, the fixed contact plate portion 324 extends substantially in parallel in the lateral direction, and the screw hole plate portion 322 extends leftward and forward from the left end of the fixed contact plate portion 324. . The side plate portion 323 extends from the left end of the screw hole plate portion 322 to the right and forward along the left side surface of the housing body 33. The side plate portion 323 is substantially perpendicular to the screw hole plate portion 322. The pair of fixed terminal protrusions 325 is spaced apart from the fixed contact plate portion 324 at both ends in the width direction of the fixed contact plate portion 324 at the right end of the screw hole plate portion 322. The pair of fixed terminal projections 325 project rearward from the screw hole plate 322 substantially in parallel in the front-rear direction.

  As shown in FIGS. 3 and 4, when the fixed terminal 32 is attached to the housing body 33, the lower portion of the side plate portion 323 is sandwiched between the side plate accommodating portions 337 of the housing body 33. The side plate accommodating portion 337 extends upward substantially perpendicularly to the lower surface portion 332 from the lower surface portion 332 which is the main wall portion of the housing main body 33. The lower end edge of the side plate portion 323 is in contact with the lower surface portion 332 between the side plate accommodating portions 337.

  The side plate accommodating portion 337 includes, for example, two wall portions substantially perpendicular to the lower surface portion 332 and substantially parallel to the side plate portion 323. The distance between the two wall portions is approximately the same as the thickness of the side plate portion 323. The two wall portions are located on both sides in the left-right direction of the side plate portion 323, and the side plate portion 323 contacts the two wall portions. Thereby, the lower side portion of the side plate portion 323 (that is, the side portion on the one side in the width direction of the side plate portion 323) is covered by the side plate accommodating portion 337. In the fixed terminal 32 on the right side in FIG. 3, the one side in the width direction of the side plate portion 323 is the rotation direction of the terminal screw 31 when screwing the terminal screw 31 into the screw hole 321 (namely, the screw of the terminal screw 31 Clockwise direction as seen from the head to the tip).

  When the main body case 2 shown in FIGS. 1 and 2 is attached to the terminal main body portion 3, the upper portion of the side plate portion 323 (that is, the other side portion in the width direction of the side plate portion 323) The main body case 2 attached to cover the side surface of the housing main body 33 is covered from the outside in the left-right direction.

  FIG. 6 is a perspective view showing a state in which a part of the main body case 2 of the terminal device 1 is omitted. Specifically, FIG. 6 shows the terminal device 1 in which the right side surface portion of the case portion 21 and the right case engaging portion 22 in the main body case 2 are omitted. As shown in FIG. 6, the side plate engaging portion 326 of the side plate portion 323 of the fixed terminal 32 is engaged with a substantially rectangular engaging convex portion 213 positioned inside the case portion 21 of the main body case 2. In the terminal device 1, when the terminal main body 3 is inserted from the opening on the rear side of the main body case 2 and the main body case 2 is attached to the terminal main body 3, the engagement convex portion 213 is attached to the side plate engaging portion 326 from the front side Be inserted. Thereby, the side plate engaging portion 326 engages with the main body case 2.

  As shown in FIGS. 3 and 4, the pair of fixed terminal protrusions 325 is sandwiched between the protrusion accommodating portions 338 of the housing main body 33. The protrusion accommodating portion 338 extends upward substantially perpendicularly to the lower surface portion 332 from the lower surface portion 332 which is the main wall portion of the housing main body 33. The protrusion accommodating portion 338 includes, for example, two wall portions substantially perpendicular to the lower surface portion 332 and substantially parallel to the extending direction of the pair of fixed terminal protrusions 325. The distance between the two wall portions is approximately the same as the thickness of the fixed terminal protrusion 325. The two wall portions are located on both sides in the left-right direction of the pair of fixed terminal protrusions 325, and the pair of fixed terminal protrusions 325 contact the two wall portions.

  In the terminal device 1, in the state where the fixed terminal 32 is attached to the housing body 33, the fixed contact plate portion 324 is arranged, for example, at a position aligned with the moving terminal 35 in the front-rear direction. The fixed contact plate portion 324 is disposed on the rear side of the moving terminal 35, and is substantially perpendicular to the moving direction (that is, the front-rear direction) of the moving terminal 35. The movable terminal 35 is electrically connected to the fixed terminal 32 by being in contact with the fixed contact plate portion 324 of the fixed terminal 32 from the front side in the state of being located at the above-described contact position.

  As described above, the terminal device 1 includes the terminal screw 31, the fixed terminal 32, the housing body 33, the moving unit 34, and the moving terminal 35. The fixed terminal 32 is a plate-like member having a screw hole 321 which can be screwed to the terminal screw 31. The housing main body 33 is a continuous member made of an insulator that holds the fixed terminal 32. The moving unit 34 protrudes forward from the front surface of the housing body 33 and moves in the front-rear direction. The moving terminal 35 moves between a contact position in contact with the fixed terminal 32 and a separated position separating from the fixed terminal 32 as the moving portion 34 moves in the front-rear direction.

  The fixed terminal 32 includes a screw hole plate portion 322 and a side plate portion 323. The screw hole plate portion 322 has the above-mentioned screw hole 321 in which the terminal screw 31 is screwed from the rear side, and extends in the left-right direction. The side plate portion 323 extends forward along the side surface of the housing main body 33 from the end portion on one side of the screw hole plate portion 322 in the left-right direction. The side surface of the housing body 33 is covered by a body case 2 attached to the housing body 33.

  In the terminal device 1, when the terminal screw 31 is screwed into the screw hole 321 of the fixed terminal 32, the rotational torque of the terminal screw 31 is transmitted to the fixed terminal 32. In the fixed terminal 32, as described above, the side plate portion 323 has the side plate engaging portion 326 which is a notch engaged with the main body case 2. In the terminal device 1, since the engagement convex portion 213 of the main body case 2 engaged with the side plate engagement portion 326 acts as a resistance to the above-mentioned rotational torque, the fixed terminal 32 is rotated by the above-mentioned rotational torque. It can be suppressed.

  From the viewpoint of suppressing the rotation of the fixed terminal 32, another plate extending from the end opposite to the screw hole plate 322 of the fixed contact plate 324 or the screw hole plate 322 of the side plate 323 and It is also conceivable to provide other plates which extend from the opposite end. However, in this case, the development length of the fixed terminal 32 (that is, the entire length in the longitudinal direction when the fixed terminal 32 is extended in the longitudinal direction in the longitudinal direction) becomes long, and the manufacturing cost of the fixed terminal 32 and the terminal device 1 increases. there is a possibility. Moreover, in order to hold | maintain the above-mentioned other board part, the housing main body 33 may enlarge and the terminal device 1 may also enlarge.

  On the other hand, in the terminal device 1 shown in FIG. 1, as described above, the side plate engaging portion 326, which is a notch engaging with the main body case 2, is provided on the side plate portion 323 to suppress the rotation of the fixed terminal 32. As a result, it is possible to prevent or suppress an increase in the development length of the fixed terminal 32 and an increase in the manufacturing cost of the terminal device 1. Moreover, the enlargement of the fixed terminal 32 and the terminal device 1 can also be prevented or suppressed. In other words, in the terminal device 1, it is possible to suppress the rotation of the fixed terminal 32 due to the rotation of the terminal screw 31 while preventing or suppressing an increase in size and manufacturing cost.

  As described above, in the terminal device 1, since the increase in the development length of the fixed terminal 32 can be prevented or suppressed, the fixed terminal 32 can be disposed close to the front side of the terminal device 1. For this reason, the distance between the terminal screw 31 in a state of being screwed into the screw hole 321 of the fixed terminal 32 and the rear surface portion 334 of the housing main body 33 can be made relatively large. Thereby, in the terminal device 1, the protection class IP 20 can be easily realized. In addition, it is possible to prevent or suppress the fingertip of a person who handles the terminal device 1 from touching the terminal screw 31 (the terminal screw 31 on the right side in FIG. 3) located at the above-mentioned retracted position.

  In the terminal device 1, the side plate engaging portion 326 is located at the front end of the side plate engaging portion 326. As a result, when the main body case 2 is attached to the terminal main body portion 3, the main body case 2 can be easily engaged with the side plate engaging portion 326. As a result, the manufacture of the terminal device 1 can be facilitated.

  In the terminal device 1, the side plate engaging portion 326 of the fixed terminal 32 may be provided at a portion other than the front end portion of the side plate portion 323. Further, the side plate engaging portion 326 is not limited to a notch, and a hole (for example, a through hole penetrating the side plate portion 323) that engages with the main body case 2, or the side opposite to the housing body 33 of the side plate portion 323 The recess may be provided on the surface of In any case, it is possible to prevent the fixed terminal 32 from rotating due to the rotation of the terminal screw 31 while preventing or suppressing the increase in size and manufacturing cost of the terminal device 1 as described above. .

  As described above, the fixed terminal 32 includes the pair of fixed terminal protrusions 325. The pair of fixed terminal protrusions 325 is disposed at the other end of the screw hole plate 322 in the left-right direction on both sides in the width direction of the plate that extends from the other end. And project in a direction inclined with respect to the screw hole plate portion 322 and the plate portion. Specifically, the plate is the fixed contact plate 324. That is, the pair of fixed terminal protrusions 325 are disposed on both sides in the width direction of the fixed contact plate portion 324. The movable contact 35 contacts the fixed contact plate portion 324 of the fixed terminal 32 in a state where the moving terminal 35 is positioned at the contact position. The housing body 33 further includes a lower surface portion 332 and a protrusion accommodating portion 338. The lower surface portion 332 is a main wall portion extending in parallel in the front-rear direction and the left-right direction. The protrusion accommodating portion 338 extends vertically from the lower surface portion 332 to the lower surface portion 332 and sandwiches the pair of fixed terminal protrusion portions 325 therebetween. When the terminal screw 31 is screwed into the screw hole 321, the pair of fixed terminal protrusions 325 and the protrusion accommodating portion 338 function as a resistance to the rotational torque transmitted to the fixed terminal 32. For this reason, it can suppress that the fixed terminal 32 rotates by rotation of the terminal screw 31. FIG.

  In the fixed terminal 32, the pair of fixed terminal protrusions 325 preferably protrude in a direction inclining rearward with respect to the screw hole plate portion 322. As described above, the pair of fixed terminal protrusions 325 protrudes to the side opposite to the moving terminal 35, whereby the movement of the moving terminal 35 can be prevented from being hindered by the fixed terminal protrusions 325. Further, it is more preferable that the pair of fixed terminal protrusion portions 325 be inclined to the other side in the left-right direction than the direction perpendicular to the screw hole plate portion 322. Thereby, it is possible to prevent the movement of the terminal screw 31 (that is, the movement at the time of screwing to the screw hole 321 or at the time of releasing the screwing) from being hindered by the fixed terminal projection 325. In addition, the protrusion direction of a pair of fixed terminal projection part 325 is not necessarily limited to the above-mentioned direction, and may be variously changed in the range which does not inhibit movement of move terminal 35 and terminal screw 31.

  In the terminal device 1, the housing body 33 includes the lower surface portion 332 and the side plate accommodating portion 337. The lower surface portion 332 is a main wall portion extending in the front-rear direction and the left-right direction. The side plate accommodating portion 337 extends vertically from the lower surface portion 332 to the lower surface portion 332 and sandwiches the side plate portion 323 of the fixed terminal 32 therebetween. The side plate portion 323 and the side plate accommodating portion 337 work as a resistance to the rotational torque transmitted to the fixed terminal 32 when the terminal screw 31 is screwed into the screw hole 321. For this reason, it can suppress that the fixed terminal 32 rotates by rotation of the terminal screw 31. FIG.

  As described above, the side plate accommodating portion 337 covers a portion on one side of the side plate portion 323 in the width direction. The one side in the width direction of the side plate portion 323 is the front side in the rotational direction of the terminal screw 31 when the terminal screw 31 is screwed to the screw hole plate portion 322. Thereby, the side plate portion 323 and the side plate accommodating portion 337 work as a greater resistance to the rotational torque transmitted from the terminal screw 31 to the fixed terminal 32. As a result, rotation of the fixed terminal 32 due to the rotation of the terminal screw 31 can be further suppressed.

  Further, the other side of the side plate portion 323 in the width direction is covered by the main body case 2 attached to the housing main body 33. Thus, the main body case 2 also acts as a resistance to the rotational torque transmitted from the terminal screw 31 to the fixed terminal 32. As a result, the rotation of the fixed terminal 32 due to the rotation of the terminal screw 31 can be further suppressed.

  Next, a terminal device according to a second embodiment of the present invention will be described. The external appearance of the terminal device according to the second embodiment is substantially the same as that of the terminal device 1 shown in FIGS. 1 and 2 except that the color of the main body case 2 is different. FIG. 7 is a plan view of the terminal main body 3a of the terminal device 1a according to the second embodiment. FIG. 8 is a perspective view of the terminal main body 3a. FIG. 9 is a perspective view of the fixed terminal 32a of the terminal device 1a.

  In the terminal device 1a, the structure of the terminal body 3a, specifically, the structures of the fixed terminal 32a and the housing body 33a are different from those of the terminal device 1 shown in FIGS. The other configuration of the terminal device 1a is substantially the same as that of the terminal device 1, and in the following description, the configuration of the terminal device 1a corresponding to the configuration of the terminal device 1 is denoted by the same reference numeral. In the terminal device 1a, the main body case 2 having the same structure (that is, the same shape) as the main body case 2 shown in FIGS. 1 and 2 is attached to the housing main body 33a of the terminal main body 3a. Cover the side, top and bottom of the

  As shown in FIGS. 7 to 9, the fixed terminal 32 a includes a screw hole plate portion 322 a, a side plate portion 323 a, and a front plate portion 327. Similar to the fixed terminal 32 shown in FIG. 5, the fixed terminal 32 a is formed by deforming a substantially strip-shaped original member by press processing or the like, and the screw hole plate portion 322 a, the side plate portion 323 a and the front plate portion 327. Is continuous. In the fixed terminal 32a, the fixed contact plate portion 324 and the pair of fixed terminal protrusions 325 shown in FIG. 5 are not provided.

  The screw hole plate portion 322a is a substantially plate-like portion that spreads in the left-right direction, and has a screw hole 321a. The screw hole plate portion 322a spreads substantially perpendicularly to the axial direction of the terminal screw 31a. The terminal screw 31a is screwed into the screw hole 321a of the screw hole plate portion 322a from the rear side. The width in the width direction of the screw hole plate portion 322a is approximately constant over substantially the entire length in the longitudinal direction.

  The side plate portion 323a is a substantially plate-like portion that extends forward along the side surface of the housing main body 33a from an end portion on one side of the screw hole plate portion 322a in the left-right direction. The width of a portion near the screw hole plate portion 322a of the side plate portion 323a is smaller than the width of the screw hole plate portion 322a. The front plate portion 327 is a substantially plate-like portion that extends in the left-right direction along the front surface of the housing main body 33 from the front end portion of the side plate portion 323a. The front plate portion 327 faces the screw hole plate portion 322a in the front-rear direction.

  A side plate engaging portion 326a, which is a substantially rectangular hole, is provided at the front end portion of the side plate portion 323a (that is, a portion near the boundary with the front plate portion 327 in the side plate portion 323a). Focusing only on the side plate portion 323a, the side plate engaging portion 326a can also be regarded as a substantially rectangular notch provided at the front end portion of the side plate portion 323a. The shape of the side plate engaging portion 326a in the side plate portion 323a is substantially the same as the shape of the side plate engaging portion 326 (see FIG. 5) in the side plate portion 323. The shape of the side plate engaging portion 326, 326a is a concept including the size. The relative position of the side plate engaging portion 326a to the housing main body 33a is also substantially the same as the relative position of the side plate engaging portion 326 to the housing main body 33. At a central portion in the longitudinal direction of the front plate portion 327, a front plate engaging portion 328 which is a substantially circular hole is provided. The front plate engaging portion 328 is a through hole penetrating the front plate portion 327 in the front-rear direction. The front plate engaging portion 328 may be a recess that is recessed rearward from the front surface of the front plate portion 327.

  In the right side fixed terminal 32a in FIGS. 7 and 8, the front plate portion 327 extends substantially in parallel in the left-right direction, and the side plate portion 323a is the right side surface of the housing body 33a from the right end of the front plate portion 327. Extend to the right and backward along the. Further, the screw hole plate portion 322a extends leftward and rearward from the rear end of the side plate portion 323a. The side plate portion 323a is substantially perpendicular to the screw hole plate portion 322a.

  Further, in the fixed terminal 32a on the left side in the figure, the front plate portion 327 spreads substantially in parallel in the left-right direction, and the side plate portion 323a extends from the left end of the front plate portion 327 along the side surface on the left side of the housing body 33a. Spread leftward and backward. Further, the screw hole plate portion 322a extends rightward and rearward from the rear end of the side plate portion 323a. The side plate portion 323a is substantially perpendicular to the screw hole plate portion 322a.

  As shown in FIGS. 7 and 8, in the state where the fixed terminal 32a is attached to the housing body 33a, the lower part of the side plate portion 323a is sandwiched between the side plate accommodating portions 337a of the housing body 33a. The side plate accommodating portion 337a extends substantially perpendicularly to the lower surface portion 332a from the lower surface portion 332a which is the main wall portion of the housing main body 33a. The lower end edge of the side plate portion 323a is in contact with the lower surface portion 332a between the side plate accommodating portions 337a.

  The side plate accommodating portion 337a includes, for example, two wall portions substantially perpendicular to the lower surface portion 332a and substantially parallel to the side plate portion 323a. The distance between the two wall portions is approximately the same as the thickness of the side plate portion 323a. The two wall portions are located on both sides in the left-right direction of the side plate portion 323a, and the side plate portion 323a contacts the two wall portions. As a result, the lower portion of the side plate portion 323a (that is, the portion on one side in the width direction of the side plate portion 323a) is covered by the side plate accommodating portion 337a. In the fixed terminal 32a on the right side in FIG. 7, the one side in the width direction of the side plate portion 323a is the rotation direction of the terminal screw 31a when screwing the terminal screw 31a into the screw hole 321a (ie, the screw of the terminal screw 31a Clockwise direction as seen from the head to the tip).

  When the main body case 2 shown in FIGS. 1 and 2 is attached to the terminal main body portion 3a, the upper side portion of the side plate portion 323a (that is, the other side portion in the width direction of the side plate portion 323a) is the housing main body 33a. It is covered from the outside in the left-right direction by the main body case 2 which is attached and covers the side surface of the housing main body 33a.

  FIG. 10 is a perspective view showing a state in which a part of the main body case 2 of the terminal device 1a is omitted. Specifically, FIG. 10 shows a terminal device 1a in which the right side surface portion of the case portion 21 and the case locking portion 22 on the right side of the main body case 2 are omitted. As shown in FIG. 10, a substantially rectangular engaging convex portion 213 positioned inside the case portion 21 of the main body case 2 is engaged with the side plate engaging portion 326a of the side plate portion 323a of the fixed terminal 32a.

  FIG. 11 is a perspective view showing a state in which a part of the main body case 2 of the terminal device 1a (a part different from FIG. 10) is omitted. Specifically, FIG. 11 shows the terminal device 1 a in which the front surface portion of the case portion 21 and the pair of case locking portions 22 in the main body case 2 are omitted. As shown in FIG. 11, in the front plate engaging portion 328 of the front plate portion 327 of the fixed terminal 32a, a substantially cylindrical or substantially cylindrical engaging convex portion protruding rearward from the inner surface of the front portion of the case portion 21. 214 is engaged.

  In the terminal device 1a, when the terminal main body 3a is inserted from the opening on the rear side of the main body case 2 and the main body case 2 is attached to the terminal main body 3a, the engaging convex portion 213 is attached to the side plate engaging portion 326a from the front side. Be inserted. Further, the engagement convex portion 214 is inserted into the front plate engagement portion 328 from the front side. Thereby, the side plate engaging portion 326 a and the front plate engaging portion 328 engage with the main body case 2.

  As shown in FIGS. 7 and 8, the moving portion 34a protrudes forward from the front surface of the housing body 33a and moves in the front-rear direction. The moving terminal 35a is a plate-like conductive member disposed rearward of the tip of the moving portion 34a. The moving terminal 35a moves between a contacting position at which the moving terminal 34a contacts the fixed terminal 32a and a separating position at which the moving terminal 35a separates from the fixing terminal 32a. 7 and 8 show a state in which the moving unit 34a is located at a predetermined first position, and the moving terminal 35a is located at the contact position. When the movable terminal 35a is in the contact position, the movable terminal 35a is in contact with the two fixed terminals 32a, and the two fixed terminals 32a are in the conductive state via the movable terminal 35a.

  Specifically, the front plate portion 327 of the fixed terminal 32a is disposed at a position aligned with the movable terminal 35a in the front-rear direction, and the movable terminal 35a positioned at the contact position is the rear side of the front plate portion 327 of the fixed terminal 32a. Contact from That is, the front plate portion 327 is a fixed contact plate portion which is a portion in contact with the movable terminal 35 a in the fixed terminal 32 a. In the terminal device 1a, the moving terminal 35a and the fixed terminal 32a are electrically connected by contact between the moving terminal 35a and the front plate portion 327. The front plate portion 327 is disposed on the front side of the moving terminal 35a, and is substantially perpendicular to the moving direction (that is, the front-rear direction) of the moving terminal 35a.

  When the moving portion 34a moves rearward from the first position shown in FIG. 7 and is positioned at the second position behind the first position, the moving terminal 35a also moves rearward and is positioned at the separated position. , And from the front plate portion 327 in the front-rear direction. That is, the moving terminal 35a is in non-contact with the two fixed terminals 32a. The moving part 34a is pushed forward by an elastic member (not shown), and in the state where no other force is applied, the moving part 34a and the moving terminal 35a are at the first position and the contact position described above, respectively. To position. That is, the terminal device 1a is a normally closed (that is, NC) terminal device in which the two fixed terminals 32a are electrically connected in a normal state.

  As described above, the terminal device 1a includes the terminal screw 31a, the fixed terminal 32a, the housing body 33a, the moving portion 34a, and the moving terminal 35a. The fixed terminal 32a is a plate-like member having a screw hole 321a that can be screwed with the terminal screw 31a. The housing body 33a is a continuous member made of an insulator that holds the fixed terminal 32a. The moving portion 34 a protrudes forward from the front surface of the housing body 33 a and moves in the front-rear direction. The moving terminal 35a moves between a contact position in contact with the fixed terminal 32a and a separated position separating from the fixed terminal 32a as the moving portion 34a moves in the front-rear direction.

  The fixed terminal 32a includes a screw hole plate portion 322a, a side plate portion 323a, and a front plate portion 327. The screw hole plate portion 322a has the above-described screw hole 321a in which the terminal screw 31a is screwed from the rear side, and extends in the left-right direction. The side plate portion 323a extends forward from one end of the screw hole plate portion 322a in the left-right direction along the side surface of the housing main body 33a. The front plate portion 327 extends in the left-right direction along the front surface of the housing main body 33a from the front end portion of the side plate portion 323a. The front surface of the housing body 33a is covered by a body case 2 attached to the housing body 33a.

  In the terminal device 1a, as described above, the front plate portion 327 of the fixed terminal 32a has the front plate engaging portion 328 which is a hole engaged with the main body case 2. In the terminal device 1a, the engagement convex portion 214 of the main body case 2 engaged with the front plate engagement portion 328 acts as a resistance to the rotational torque transmitted from the terminal screw 31a to the fixed terminal 32a. For this reason, similarly to the terminal device 1, it is possible to suppress the rotation of the fixed terminal 32a due to the rotation of the terminal screw 31a while preventing or suppressing the increase in size and manufacturing cost of the terminal device 1a.

  Further, as in the case of the terminal device 1, the increase in the development length of the fixed terminal 32 a can be prevented or suppressed, so the fixed terminal 32 a can be arranged close to the front side of the terminal device 1 a. Thereby, in the terminal device 1a, the protection class IP 20 can be easily realized. In addition, it is possible to prevent the fingertip of a person who handles the terminal device 1a from touching the terminal screw 31a (the terminal screw 31a on the right side in FIG. 7) located at the above-mentioned retracted position.

  In the terminal device 1a, the front plate engaging portion 328 of the fixed terminal 32a is not limited to a hole, and a notch that engages with the main body case 2 (for example, the upper end edge, the lower end edge, or the left or right direction of the front plate portion 327). It may be a notch provided at the inner end edge). Even in this case, it is possible to suppress the rotation of the fixed terminal 32a due to the rotation of the terminal screw 31a while preventing or suppressing the increase in size and manufacturing cost of the terminal device 1a as described above.

  In the terminal device 1a, the side surface of the housing body 33a is also covered by the body case 2, and the side plate portion 323a has a side plate engaging portion 326a which is a notch or a hole engaged with the body case 2. Thus, the rotation of the fixed terminal 32a due to the rotation of the terminal screw 31a can be further suppressed.

  In the terminal device 1a, the housing body 33a includes a lower surface portion 332a and a side plate storage portion 337a. The lower surface portion 332a is a main wall portion that extends in the front-rear direction and the left-right direction. The side plate accommodating portion 337a extends vertically from the lower surface portion 332a to the lower surface portion 332a, and sandwiches the side plate portion 323a of the fixed terminal 32a. The side plate portion 323a and the side plate accommodation portion 337a act as a resistance to the rotational torque transmitted to the fixed terminal 32a when the terminal screw 31a is screwed into the screw hole 321a. For this reason, it can suppress that fixed terminal 32a rotates by rotation of terminal screw 31a.

  The side plate accommodating portion 337a covers a portion on one side in the width direction of the side plate portion 323a. The one side in the width direction of the side plate portion 323a is the front side in the rotational direction of the terminal screw 31a when the terminal screw 31a is screwed to the screw hole plate portion 322a. Thus, the side plate portion 323a and the side plate accommodating portion 337a act as a greater resistance to the rotational torque transmitted from the terminal screw 31a to the fixed terminal 32a. As a result, the rotation of the fixed terminal 32a due to the rotation of the terminal screw 31a can be further suppressed.

  Further, the other side of the side plate portion 323a in the width direction is covered by the main body case 2 attached to the housing main body 33a. Thus, the main body case 2 also acts as a resistance to the rotational torque transmitted from the terminal screw 31a to the fixed terminal 32a. As a result, the rotation of the fixed terminal 32a due to the rotation of the terminal screw 31a can be further suppressed.

  As shown in FIG. 12, the normally open terminal device 1 and the normally closed terminal device 1a described above may be used by being attached to the operation unit 41 or the like of the switch device 4 as a pair. . In the following description, the one set of the terminal device 1 and the terminal device 1a will be referred to as a "terminal device set 10". Further, the terminal devices 1 and the terminal devices 1a included in the terminal device set 10 are referred to as "first terminal device 1" and "second terminal device 1a", respectively.

  As described above, the shape of the side plate engaging portion 326 of the first terminal device 1 shown in FIG. 6 and the relative position with respect to the housing main body 33 are the shape of the side plate engaging portion 326a of the second terminal device 1a shown in FIG. It is the same as the relative position to the main body 33a. The body case 2 attached to the housing body 33 of the first terminal device 1 can also be attached to the housing body 33a of the second terminal device 1a. Thereby, the metal mold | die of main body case 2 can be made common by the 1st terminal device 1 and the 2nd terminal device 1a. As a result, the manufacturing cost of the first terminal device 1 and the second terminal device 1a can be reduced. Moreover, the first terminal device 1 and the second terminal device 1a can be easily distinguished by making the body case 2 different in color between the first terminal device 1 and the second terminal device 1a.

  In the terminal device set 10, the structure of the main body case 2 may be different between the first terminal device 1 and the second terminal device 1a. Thereby, the main body case 2 for the first terminal device 1 can not be attached to the terminal main body 3a of the second terminal device 1a, and the main body case 2 for the second terminal device 1a is the first terminal device 1 Can not be attached to the terminal body 3 of As a result, it is prevented that the combination of the main body case 2 and the terminal main body 3, 3a is assembled incorrectly.

  In the above-mentioned terminal devices 1 and 1a, various modifications are possible.

  In the terminal device 1 shown in FIG. 1, the fixed terminal 32 is provided with a front plate portion 327 and a front plate engaging portion 328 similar to the fixed terminal 32a shown in FIG. And may engage. Thus, the rotation of the fixed terminal 32 due to the rotation of the terminal screw 31 can be further suppressed.

  In the terminal device 1 shown in FIG. 1, a portion of the side plate portion 323 on the rear side in the rotational direction of the terminal screw 31 may be covered by the side plate accommodating portion 337 and a portion on the front side in the rotational direction may be covered by the main body case 2. In addition, the covering of the side plate portion 323 by the main body case 2 may be omitted. The side plate accommodating portion 337 may cover the side plate portion 323 over substantially the entire width of the side plate portion 323 in the width direction. In any case, by sandwiching the side plate portion 323 between the side plate accommodating portions 337, it is possible to suppress the rotation of the fixed terminal 32 due to the rotation of the terminal screw 31. The same applies to the terminal device 1a shown in FIG.

  In the terminal device 1 shown in FIG. 1, as described above, the side plate engaging portion 326, the pair of fixed terminal protrusion portions 325, and the side plate accommodating portion are used to prevent the fixed terminal 32 from rotating due to the rotation of the terminal screw 31. Although three structures of 337 are provided, any one or two of the three structures may be selectively provided. Regardless of which structure is provided, as described above, the fixed terminal 32 is prevented from rotating due to the rotation of the terminal screw 31 while preventing or suppressing the increase in size and manufacturing cost of the terminal device 1. can do.

  In the terminal device 1, another pair of fixed terminal protrusions may be provided on the fixed terminal 32 instead of the pair of fixed terminal protrusions 325 or in addition to the pair of fixed terminal protrusions 325. The other pair of fixed terminal projections are arranged at both ends in the width direction of the side plate portion 323 apart from the side plate portion 323 at the one end in the left and right direction of the screw hole plate portion 322, and the screw hole plate It projects in a direction inclined with respect to the portion 322 and the side plate portion 323. The other pair of fixed terminal protrusions are, for example, sandwiched between other protrusion receiving portions having the same structure as the protrusion receiving portions 338 of the housing main body 33. Thereby, similarly to the above, it is possible to suppress the rotation of the fixed terminal 32 due to the rotation of the terminal screw 31 while preventing or suppressing the enlargement of the terminal device 1 and the increase of the manufacturing cost. In other words, in the terminal device 1, the fixed terminal 32 includes the pair of fixed terminal protrusions 325 or the other pair of fixed terminal protrusions described above, thereby increasing the size and manufacturing cost of the terminal device 1. It is possible to prevent the fixed terminal 32 from rotating due to the rotation of the terminal screw 31 while preventing or suppressing the above.

  In the terminal device 1a shown in FIG. 7, as described above, the side plate engaging portion 326a, the front plate engaging portion 328, and the side plate accommodating portion 337a are used to prevent the fixed terminal 32a from rotating due to the rotation of the terminal screw 31a. Although three structures are provided, in place of the three structures, a pair of fixed terminal protrusions may be provided on the fixed terminal 32a. The pair of fixed terminal projections are spaced apart from the side plate portion 323a on both sides in the width direction of the side plate portion 323a at the one end of the screw hole plate portion 322a in the left and right direction, and the screw hole plate portion 322a And it protrudes in the direction which inclines with respect to the side plate part 323a. The pair of fixed terminal protrusions are, for example, sandwiched between protrusion receiving portions having the same structure as the protrusion receiving portions 338 (see FIGS. 3 and 4) of the housing body 33 of the terminal device 1. Thus, similarly to the above, it is possible to prevent the fixed terminal 32a from rotating due to the rotation of the terminal screw 31a while preventing or suppressing the increase in size and manufacturing cost of the terminal device 1a.

  Further, in the terminal device 1a, any one, two or four of the four structures of the side plate engaging portion 326a, the front plate engaging portion 328, the side plate accommodating portion 337a, and the pair of fixed terminal protrusions described above Three structures may be provided selectively. Regardless of which structure is provided, as described above, the fixed terminal 32a is prevented from rotating due to the rotation of the terminal screw 31a while preventing or suppressing the increase in size and manufacturing cost of the terminal device 1a. can do.

  The number of terminal screws 31 and fixed terminals 32 provided in the terminal device 1 shown in FIG. 1 may be one or three or more. The same applies to the terminal device 1a shown in FIG.

  In the terminal devices 1 and 1a, the shapes of the main body case 2 and the terminal main portions 3 and 3a may be variously changed. The terminal devices 1 and 1a may be attached to various mounting objects other than the operation unit of the switch device.

  The configurations in the above embodiment and each modification may be combined as appropriate as long as no contradiction arises.

Reference Signs List 1 (first) terminal device 1a (second) terminal device 2 main body case 10 terminal device set 31, 31a terminal screw 32, 32a fixed terminal 33, 33a housing body 34, 34a moving part 35, 35a moving terminal 321, 321a screw Hole 322, 322a Screw hole plate portion 323, 323a Side plate portion 324 Fixed contact plate portion 325 Fixed terminal projection portion 326, 326a Side plate engaging portion 327 Front plate portion 328 Front plate engaging portion 332, 332a Lower surface portion 337, 337a Side plate accommodation Part 338 Projection holder

Claims (18)

A terminal device,
Terminal screw,
A plate-like fixed terminal having a screw hole screwable with the terminal screw;
A housing main body which is a continuous member made of an insulator that holds the fixed terminal;
A moving unit that protrudes forward from the front surface of the housing body and moves in the front-rear direction;
A moving terminal that moves between a contact position in contact with the fixed terminal and a separated position in which the fixed terminal is separated with movement of the moving unit in the front-rear direction;
Equipped with
The fixed terminal is
A screw hole plate portion having the screw hole in which the terminal screw is screwed from the rear side, and extending in the left-right direction
A side plate portion that extends forward along the side surface of the housing body from an end portion on one side in the left-right direction of the screw hole plate portion;
Equipped with
The side surface of the housing body is covered by a body case attached to the housing body;
A terminal device characterized in that the side plate portion has a side plate engaging portion which is a notch or a hole engaged with the main body case at a position separated from a connection portion with the screw hole plate portion . The terminal device according to claim 1, wherein
The terminal device, wherein the side plate engaging portion is located at a front end portion of the side plate portion. A terminal device,
Terminal screw,
A plate-like fixed terminal having a screw hole screwable with the terminal screw;
A housing main body which is a continuous member made of an insulator that holds the fixed terminal;
A moving unit that protrudes forward from the front surface of the housing body and moves in the front-rear direction;
A moving terminal that moves between a contact position in contact with the fixed terminal and a separated position in which the fixed terminal is separated with movement of the moving unit in the front-rear direction;
Equipped with
The fixed terminal is
A screw hole plate portion having the screw hole in which the terminal screw is screwed from the rear side, and extending in the left-right direction;
A side plate portion that extends forward along the side surface of the housing body from an end portion on one side in the left-right direction of the screw hole plate portion;
A front plate portion extending in the left and right direction along the front surface of the housing main body from the front end portion of the side plate portion;
Equipped with
The front surface of the housing body is covered by a body case attached to the housing body;
A terminal device characterized in that the front plate portion has a front plate engaging portion which is a notch or a hole engaged with the main body case. The terminal device according to claim 3, wherein
The side surface of the housing body is also covered by the body case,
A terminal device characterized in that the side plate portion has a side plate engaging portion which is a notch or a hole engaged with the main body case. The terminal device according to any one of claims 1 to 4, wherein
The fixed terminal is
The end of the screw hole plate on one side in the left-right direction is spaced apart from the side plate at both sides in the width direction of the side plate, and is inclined with respect to the screw hole plate and the side plate A pair of fixed terminal protrusions that project in the direction, or
The screw hole plate portion and the screw hole plate portion are disposed apart from the plate portion on both sides in the width direction of the plate portion spreading from the other end portion at the other side end of the screw hole plate portion. A pair of fixed terminal protrusions which project in a direction inclined with respect to the part,
And further
The housing body is
A main wall extending parallel to the front and rear direction and the left and right direction,
A protrusion accommodating portion which vertically extends from the main wall to the main wall and sandwiches the pair of fixed terminal protrusions;
A terminal device comprising: The terminal device according to any one of claims 1 to 5, wherein
The housing body is
A main wall extending parallel to the front and rear direction and the left and right direction,
A side plate accommodating portion extending vertically from the main wall portion to the main wall portion and sandwiching the side plate portion;
A terminal device comprising: The terminal device according to any one of claims 1 to 6, wherein
It further comprises the body case,
A terminal device characterized in that the main body case covers a surface except a rear surface of the housing main body. Terminal device set, and
A normally open first terminal device,
A normally closed second terminal device according to claim 4, which is the terminal device according to claim 4.
Equipped with
The first terminal device is
First terminal screw,
A plate-shaped first fixed terminal having a screw hole screwable with the first terminal screw;
A first housing main body which is a continuous member made of an insulator that holds the first fixed terminal;
A first moving unit that protrudes forward from the front surface of the first housing body and moves in the front-rear direction;
A first moving terminal that moves between a contact position in contact with the first fixed terminal and a separated position in which the first fixed terminal is separated with movement of the first moving unit in the front-rear direction;
Equipped with
The first fixed terminal is
A first screw hole plate portion having the screw hole in which the first terminal screw is screwed from the rear side, and extending in the left-right direction;
A first side plate portion that extends forward along the side surface of the first housing main body from an end portion on one side in the left-right direction of the first screw hole plate portion;
A first fixed contact plate portion extending from the end of the other side in the lateral direction of the first screw hole plate portion,
Equipped with
The side surface of the first housing body is covered by a first body case attached to the first housing body;
The first side plate portion has a first side plate engaging portion which is a notch or a hole engaged with the first main body case at a position separated from a connection portion with the first screw hole plate portion,
In the first terminal device, the first movable terminal is separated from the first fixed terminal in a state where the first movable portion is located at the first position, and the first movable portion is movable from the first position. The first movable terminal is in contact with the first fixed contact plate portion of the first fixed terminal in a state where the first movable terminal is positioned at the second position on the rear side,
In the second terminal device, the movable terminal is in contact with the front plate portion which is a fixed contact plate portion of the fixed terminal in a state where the movable portion is positioned at the first position, and the movable portion is at the first position The movable terminal is separated from the front plate portion of the fixed terminal in a state of being positioned at a second position on the rear side of the fixed terminal;
The shape of the first side plate engaging portion of the first terminal device and the relative position to the first housing main body are the same as the shape of the side plate engaging portion of the second terminal device and the relative position to the housing main body ,
A terminal device set characterized in that the first body case attached to the first housing body of the first terminal device is attachable to the housing body of the second terminal device. A terminal device,
Terminal screw,
A plate-like fixed terminal having a screw hole screwable with the terminal screw;
A housing main body which is a continuous member made of an insulator that holds the fixed terminal;
A moving unit that protrudes forward from the front surface of the housing body and moves in the front-rear direction;
A moving terminal that moves between a contact position in contact with the fixed terminal and a separated position in which the fixed terminal is separated with movement of the moving unit in the front-rear direction;
Equipped with
The fixed terminal is
A screw hole plate portion having the screw hole in which the terminal screw is screwed from the rear side, and extending in the left-right direction;
A side plate portion that extends forward along the side surface of the housing body from an end portion on one side in the left-right direction of the screw hole plate portion;
The end of the screw hole plate on one side in the left-right direction is spaced apart from the side plate at both sides in the width direction of the side plate, and is inclined with respect to the screw hole plate and the side plate Away from the plate in the width direction on both sides of the plate that extends from the other end of the pair of fixed terminal protrusions projecting in the direction or the other end of the screw hole plate in the left-right direction A pair of fixed terminal projections which are disposed in the direction of inclination relative to the screw hole plate and the plate;
Equipped with
The housing body is
A main wall extending parallel to the front and rear direction and the left and right direction,
A protrusion accommodating portion which vertically extends from the main wall to the main wall and sandwiches the pair of fixed terminal protrusions;
A terminal device comprising: The terminal device according to claim 9, wherein
The fixed terminal further includes a fixed contact plate portion, which is the plate portion extending from the other end of the screw hole plate portion,
Contacting the fixed contact plate portion of the fixed terminal, with the movable terminal positioned at the contact position;
A terminal device characterized in that the pair of fixed terminal protrusions are disposed on both sides in the width direction of the fixed contact plate portion. The terminal device according to claim 10, wherein
A terminal device characterized in that the pair of fixed terminal projection parts are inclined in a direction rearward with respect to the screw hole plate part. The terminal device according to claim 11, wherein
A terminal device characterized in that the pair of fixed terminal projection parts are inclined to the other side in the left-right direction than a direction perpendicular to the screw hole plate part. A terminal device according to any one of claims 9 to 12, wherein
The housing body is
A main wall extending parallel to the front and rear direction and the left and right direction,
A side plate accommodating portion extending vertically from the main wall portion to the main wall portion and sandwiching the side plate portion;
A terminal device comprising: The terminal device according to any one of claims 9 to 13, wherein
A terminal device, further comprising: a main body case attached to the housing main body and covering a surface other than the rear surface of the housing main body. A terminal device,
Terminal screw,
A plate-like fixed terminal having a screw hole screwable with the terminal screw;
A housing main body which is a continuous member made of an insulator that holds the fixed terminal;
A moving unit that protrudes forward from the front surface of the housing body and moves in the front-rear direction;
A moving terminal that moves between a contact position in contact with the fixed terminal and a separated position in which the fixed terminal is separated with movement of the moving unit in the front-rear direction;
Equipped with
The fixed terminal is
A screw hole plate portion having the screw hole in which the terminal screw is screwed from the rear side, and extending in the left-right direction;
A side plate portion that extends forward along the side surface of the housing body from an end portion on one side in the left-right direction of the screw hole plate portion;
Equipped with
The housing body is
A main wall extending parallel to the front and rear direction and the left and right direction,
A side plate accommodating portion extending vertically from the main wall portion to the main wall portion and sandwiching the side plate portion;
A terminal device comprising: The terminal device according to claim 15, wherein
The side plate accommodating portion covers a portion on one side in the width direction of the side plate portion;
The terminal device according to claim 1, wherein the one side in the width direction of the side plate portion is a front side in a rotational direction of the terminal screw when the terminal screw is screwed to the screw hole plate portion. The terminal device according to claim 16, wherein
A terminal device characterized in that a region on the other side in the width direction of the side plate portion is covered by a main body case attached to the housing main body. The terminal device according to any one of claims 15 to 17, wherein
A terminal device, further comprising: a main body case attached to the housing main body and covering a surface other than the rear surface of the housing main body.

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