JP2014157737A - Angle fixing device and signal display lamp unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an angle fixing device capable of reducing troublesome work for adjusting an angle and positively fixing the angle.SOLUTION: An angle fixing device 4 comprises a fixing pedestal 20, opposing members 22, 23 forming a storing space 21, a turning member 17 rotatably arranged in the storing space 21 around a predetermined rotating axis 13 and equipment fixing part 18 integrally assembled to the turning member 17. The opposing members 22, 23 have a pair of inner walls 24, 25 to form the storing space 21 between them. The inner wall 25 is provided with a protrusion 34, the side surface 31 of the turning member 17 is provided with a protrusion 35 engaged with the protrusion 34. The turning member 17 is displaced along the rotating axis 13 to release engaged state of the protrusions 34, 35, the turning member 17 is turned to a desired angular position under this state to return the displaced state of the turning member 17. With this arrangement, it is possible to fix the equipment fixing part 18 to a desired angular position in respect to the pedestal 20.

Description

  The present invention relates to an angle fixing device and a signal indicator lamp unit.

The angle fixing device is, for example, for attaching a signal indicator lamp or a lighting device to a machine facility or a building to be attached so as to be adjustable to a desired angle, and various devices have been proposed (for example, Patent Documents 1 and 2).
The angle fixing device described in Patent Literature 1 includes a fixing member and a rotating member that can rotate relative to each other. These two members are fixed to each other with bolts, but in a state where the bolts are loosened, the rotating member can be rotated with respect to the fixed member so that the rotating member can be adjusted to a desired angular position. Yes.

  In addition, the angle fixing device of Patent Document 2 includes a fixing member and a rotating member that can rotate relative to each other, an elastic member that can press the rotating member, and an operation button for releasing the pressing of the elastic member. Have. By operating the operation button, the pressing force of the elastic member is prevented from acting on the rotating member, and the angle of the rotating member can be adjusted.

International Publication No. WO2011 / 099066A1 Specification JP 2009-245615 A

However, in the angle fixing device described in Patent Document 1, when adjusting the angle, it is necessary to loosen or fasten the bolt, and a tool for that is also required. Therefore, the work is complicated and time-consuming.
Further, in the angle fixing device of Patent Document 2, since the operation button is configured by a member different from the rotating member, there is a possibility that the fixed state may be inadvertently released when an external force is applied due to vibration or the like. is there.

  Accordingly, a main object of the present invention is to provide an angle fixing device and a signal indicator lamp unit that can reduce the time and effort during the angle adjustment and can be reliably fixed.

  According to the first aspect of the present invention, the mounting base and at least a part of the mounting base are integrally formed, and a housing space is formed between a pair of inner side walls facing each other with a predetermined gap therebetween. A space forming member, a rotation member provided to be rotatable around a predetermined rotation axis in the accommodation space, and a rotation peripheral surface of the rotation member are provided integrally with the rotation member. A first engaging portion is provided on one inner wall of the pair of inner walls, and is provided on one side surface of the rotating member that faces the one inner wall. Is provided with a second engagement portion that engages with the first engagement portion, and the first engagement portion and the second engagement in a direction along the rotation axis of the rotation member. The pivoting portion is displaced to a state where the engagement with the portion is released, and the pivoting member is pivoted to a desired angular position in that state, and the pivoting portion By returning the excursion is the angle fixing device, characterized in that it is possible to fix the device mounting section to the desired angular position with respect to the pedestal.

The invention according to claim 2 is provided with an elastic member that urges the rotating member in a direction in which the engagement between the first engagement portion and the second engagement portion is maintained. The angle fixing device according to claim 1.
According to a third aspect of the present invention, the elastic member is rotated with the accommodating space forming member in a state where the elastic member is elastically deformed when the first engaging portion and the second engaging portion are engaged with each other. The angle fixing device according to claim 2, wherein the angle fixing device is interposed between the moving member and the moving member.

The invention according to claim 4 is characterized in that an operation portion for deflecting the rotating member along the rotating shaft is integrally formed on the rotating member. It is an angle fixing device as described in any one of 1-3.
The invention according to claim 5 is characterized in that the operation portion is disposed on the rotation shaft and is operated from a through hole formed on the rotation shaft in the one inner wall. An angle fixing device according to claim 4.

According to a sixth aspect of the present invention, the pair of inner side walls of the housing space forming member are disposed on opposite sides of the rotating member along the rotating shaft and are fixed to each other. One of a pair of inner side walls is an angle fixing device as described in any one of Claims 1-5 currently formed integrally with the said base.
A seventh aspect of the invention includes the angle fixing device according to any one of the first to sixth aspects, and a signal indicator lamp that is attached so as to be adjustable in angle by the angle fixing device. The signal indicator unit.

  According to the first aspect of the present invention, the angular position of the rotating member is adjusted by switching the engagement and release of the first and second engaging portions by the displacement of the rotating member in the rotation axis direction. And the fixing of the angular position can be realized. Further, for example, a mounting target device such as a signal indicator lamp is connected to the rotating member via a device mounting portion, and these entire loads act on the rotating member. As a result, even when an external force such as vibration acts, the engagement state between the first engagement portion and the second engagement portion is maintained. When adjusting the angular position, for example, by operating a member that can move integrally with the rotation member, such as a device mounting portion, or the rotation member itself, the rotation member is displaced along the rotation axis. Can be made. At this time, it is not necessary to use a tool, and the work effort can be reduced.

According to the second aspect of the present invention, since the biasing force of the elastic member is used for maintaining the engaged state, the angular position can be reliably fixed.
According to the invention described in claim 3, the angular position can be more reliably fixed.
According to invention of Claim 4, it can be made easy to deviate a rotation member by an operation part. In addition, since the operation unit is formed integrally with the rotating member, there is no possibility of inadvertent movement due to vibration or the like. Further, durability can be increased.

According to the fifth aspect of the present invention, since the vicinity of the rotation shaft can be operated by the operation portion, the rotation member can be more easily displaced along the rotation shaft.
According to the invention of claim 6, the angle fixing device can be easily assembled. Moreover, durability can be improved.
According to the seventh aspect of the present invention, it is possible to realize a signal indicator lamp unit that is easy to adjust the angle and has high durability.

FIG. 1 is a perspective view of a signal indicator lamp unit 1 including an angle fixing device 4 according to a first embodiment of the present invention. FIG. 2 is an exploded perspective view of the angle fixing device 4. FIG. 3 is a cross-sectional view of the angle fixing device 4 and shows a fixed state of the mounting angle. FIG. 4 is a cross-sectional view of the angle fixing device 4 and shows a state in which the mounting angle can be adjusted. FIG. 5 is a side view of the angle fixing device 4 and shows a state in which the mounting angle can be adjusted. FIG. 6 is a side view of the angle fixing device 4A according to the second embodiment of the present invention, and shows a state in which the mounting angle can be adjusted. FIG. 7 is a cross-sectional view of an angle fixing device 4B according to a third embodiment of the present invention, and shows a fixed state of the mounting angle. FIG. 8 is a cross-sectional view of an angle fixing device 4C according to the fourth embodiment of the present invention, showing a fixed state of the mounting angle. FIG. 9 is an exploded perspective view of an angle fixing device 4D according to the fifth embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a perspective view of a signal indicator lamp unit 1 including an angle fixing device 4 according to a first embodiment of the present invention.
Referring to FIG. 1, a signal indicator lamp unit 1 includes a signal indicator lamp 2 as an attached device, and an angle fixing device 4 that attaches the signal indicator lamp 2 to an upper surface of a machine body 3 as an attachment target so that the angle can be adjusted. And have.

The signal indicator lamp 2 emits an optical signal indicating various information to the surroundings. The signal indicator lamp 2 can also function as an illumination device that illuminates the surroundings. In this case, the signal indicator lamp unit 1 functions as a lighting device unit.
The signal indicator lamp 2 has a long bar shape in one direction. The signal indicator lamp 2 includes a signal indicator lamp body 5 and a pole 6 that supports the signal indicator lamp body 5.

  At least a part of the signal indicator main body 5 has translucency, and at least one, for example, a plurality of light sources 7 and a circuit board 8 electrically connected to each of the light sources 7 are provided therein. Is housed. One end of an electric wire 9 is electrically connected to the circuit board 8. The electric wire 9 passes through the inside of the pole 6 and the inside of the angle fixing device 4 and is electrically connected to an external control unit 10 arranged inside the machine main body 3. The control unit 10 supplies power to the signal indicator lamp 2 and controls light emission by sending an electric signal to the signal indicator lamp 2. For example, the signal indicator lamp 2 can be turned on or off, or the light can be blinked.

The pole 6 has a long cylindrical shape. One end of the pole 6 in the longitudinal direction is connected to the end of the signal indicator lamp body 5. The other end of the pole 6 in the longitudinal direction is connected to the angle fixing device 4.
The angle fixing device 4 is attached to a horizontal upper surface as an attachment surface of the machine body 3 by a plurality of fixing screws 12. Hereinafter, although described in accordance with this case, the angle fixing device 4 can be attached to the side surface of the machine body 3 or the inner wall of the building.

The angle fixing device 4 can rotate the signal indicator lamp 2 within a predetermined angle range around a predetermined rotation axis 13 (center axis), thereby adjusting and adjusting the mounting angle D of the signal indicator lamp 2. The signal indicator lamp 2 can be fixed at the mounting angle D.
For example, the rotation shaft 13 extends horizontally. The range of the adjustable mounting angle D is 0 to 90 degrees. The signal indicator lamp 2 can be fixed at a plurality of mounting angles D corresponding to both ends and the middle of this angle range. The mounting angle D is an angle formed by the pole 6 and the horizontal plane. Specifically, the mounting angle (D = 90 °) along which the pole 6 extends along the vertical direction and the mounting angle (D = 0) where the pole 6 extends horizontally. °) and a mounting angle (D = 45 °) at which the pole 6 extends obliquely at an angle of 45 degrees with respect to the horizontal plane.

The angle fixing device 4 includes a fixing member 16 that is fixed to the machine body 3, a cylindrical rotating member 17 that can rotate around the rotating shaft 13 with respect to the fixing member 16, and the rotating member 17. And a device mounting portion 18 formed integrally with the device. The device mounting portion 18 has a cylindrical shape and protrudes radially outward, and the pole 6 of the signal indicator lamp 2 is attached thereto.
Each of the fixing member 16, the rotating member 17, and the device mounting portion 18 is formed of a hard member such as metal or synthetic resin, and has an internal cavity. The internal cavities of these members communicate with each other, communicate with each other inside the machine main body 3 and inside the pole 6, and pass through the electric wires 9.

The rotating member 17 is supported by the fixing member 16 so as to be able to be displaced in a direction along the rotating shaft 13 (hereinafter also referred to as an axial direction S). By displacing the rotation member 17 in the axial direction S, the rotation member 17 can be switched between a rotatable state and a non-rotatable state with respect to the fixed member 16, as will be described later. .
FIG. 2 is an exploded perspective view of the angle fixing device 4. FIG. 3 is a cross-sectional view of the angle fixing device 4 and shows a fixed state of the mounting angle. FIG. 4 is a cross-sectional view of the angle fixing device 4 and shows a state in which the mounting angle can be adjusted. FIG. 5 is a side view of the angle fixing device 4 and shows a state in which the mounting angle can be adjusted.

Referring to FIGS. 1 and 2, fixing member 16 includes a pair of mounting bases 20 and a pair of storage spaces forming members that form a storage space 21 for disposing rotating member 17 on base 20. Opposing members 22 and 23 are provided.
The pair of opposing members 22 and 23 are formed in a disk shape. One opposing member 22 has an inner wall 24 that faces the rotating member 17 in the axial direction S. The other facing member 23 has an inner wall 25 facing the rotating member 17 in the axial direction S. The inner wall 24 and the inner wall 25 are each formed in a substantially circular shape, and the rotation shaft 13 is orthogonal to the center thereof. The pair of inner side walls 24, 25 are opposed to each other at a predetermined interval in the axial direction S, and a substantially cylindrical accommodation space 21 is formed therebetween.

  Moreover, the opposing member 22 is integrally formed with the base 20, and comprises the single component. In this component, an extending portion 26 is integrally formed as an accommodation space forming member extending in the axial direction S from the outer peripheral edge portion of the inner side wall 24 of the facing member 22. The extending portion 26 has an arc shape in cross section when viewed in the axial direction S, and extends in the circumferential direction over a half circumference around the rotating shaft 13. The extending portion 26 receives the rotating member 17 so as to be rotatable around the rotating shaft 13 and slidable in the axial direction S.

The facing member 23 is formed separately from the base 20, the facing member 22, and the extending portion 26. The opposing member 23 is fixed to the opposing member 22 with a plurality of fixing screws 27 via the extending portion 26. By configuring the fixing member 16 in this way, the rotating member 17 can be easily assembled to the fixing member 16, and the angle fixing device 4 can be easily assembled.
A plurality of insertion holes 28 are provided in the outer peripheral edge portion of the inner wall 24 of the facing member 22. A female screw is formed in the insertion hole 28. In addition, a plurality of through holes 29 facing the insertion hole 28 in the axial direction S are provided on the outer peripheral edge portion of the inner wall 25 of the facing member 23. A fastening screw 27 for fastening passes through the through hole 29 and is engaged with a female screw of the insertion hole 28.

  In addition, the specific structure of the fixing member 16 is not limited to what is shown in FIG. For example, it is also conceivable that the pedestal is composed of a pair of members fixed with bolts or the like, and the pair of members and the pair of opposing members are formed integrally with each other corresponding to each other. Further, the pedestal 20 of the fixing member 16 may be formed integrally with a part of the mechanical device 3. Below, it demonstrates in accordance with embodiment shown in FIG.

Referring to FIGS. 2 and 3, the rotating member 17 includes a disk-shaped side surface 30 that faces the inner wall 24 of the facing member 22 in the axial direction S, and the inner wall 25 of the facing member 23 and the axial direction S. And an annular side surface portion 31 that faces the outer peripheral surface, and a rotating peripheral surface 32 that forms a cylindrical outer periphery. The device mounting portion 18 protrudes radially outward from the rotating peripheral surface 32.
On the inner wall 25 of the facing member 23, a plurality of protrusions 34 are formed as first engaging portions for fixing the mounting angle. Opposing to this, a plurality of protrusions 35 are formed on the side surface portion 31 of the rotating member 17 as second engaging portions that engage with the first engaging portion. Each of the plurality of protrusions 34 and 35 is arranged in an annular shape having the same radius around the rotation shaft 13.

The plurality of protrusions 34 and the plurality of protrusions 35 are configured to mesh with each other at a plurality of angular positions of the rotating member 17. The plurality of angular positions of the rotating member 17 correspond to a plurality of fixing angles at which the signal indicator lamp 1 can be fixed.
The protrusions 34 have the same shape as each other and are formed with a predetermined length in the circumferential direction. The plurality of protrusions 34 form an annular shape centering on the rotation shaft 13 as a whole, and are arranged endlessly at regular intervals. A tooth gap is formed between the protrusions 34 adjacent to each other in the circumferential direction. The protrusion 35 is configured similarly to the protrusion 34. In the circumferential direction, the dimension of the protrusion 34 and the dimension of the tooth groove of the protrusion 35 are set to be approximately equal, and the dimension of the protrusion 35 and the dimension of the tooth groove of the protrusion 34 are set to be approximately equal.

  With reference to FIGS. 3, 4, and 5, the mutual engagement state of the protrusions 34 and 35 can be released by the displacement of the rotating member 17 in the axial direction S. That is, as shown in FIG. 3, in the axial direction S, when the rotating member 17 is closest to the inner wall 25 of the opposing member 23, the rotating member 17 and the inner wall 24 of the opposing member 22 are The required gap is secured. This gap amount is set to a dimension that exceeds the engagement length of the protrusions 34 and 35 in the axial direction S so that the engagement of the protrusions 34 and 35 can be released. Therefore, as shown in FIG. 4, when the rotating member 17 is moved farthest from the inner wall 25 of the opposing member 23 in the axial direction, the engaged state of the protrusions 34 and 35 can be released. As shown by black arrows in FIG. 5, the rotating member 17 can be rotated. Thereby, since the meshing of the protrusions 34 and 35 is used for maintaining the engaged state, the angular position of the rotating member 17 can be reliably fixed. In addition, since the plurality of protrusions 34 and 35 have an annular shape with the rotation shaft 13 as the center, the load applied to the protrusions 34 and 35 can be easily dispersed, so that durability can be improved.

With reference to FIGS. 2 and 3, a coil spring 37 as an elastic member for urging the rotation member 17 is provided on the side opposite to the protrusions 34 and 35 in the axial direction S.
The coil spring 37 is a compression spring, and is held between the inner wall 24 of the facing member 22 and the side surface portion 30 of the rotating member 17. One end of the coil spring 37 is received in the radial direction by a cylindrical holding portion 38 that protrudes in the axial direction S at the center of the inner wall 24, and contacts the annular receiving surface of the inner wall 24 around the holding portion 38. It is in contact with the axial direction S. The other end of the coil spring 37 is received in the radial direction and the axial direction S by a recess 39 formed at the center of the side surface portion 30 of the rotating member 17.

The coil spring 37 always presses and urges the rotating member 17 in a direction in which the engagement of the protrusions 34 and 35 is maintained. Thus, since the urging force of the elastic member is used for maintaining the engaged state, the angular position can be reliably fixed.
Further, the coil spring 37 is in a state of being compressed and elastically deformed when the protrusions 34 and 35 are engaged with each other. Accordingly, the elastic restoring force of the elastic member can be reliably used for fixing the angular position, and the angular position can be more reliably fixed.

It is also conceivable that the coil spring 37 as an elastic member is disposed on the opposing member 23 side and the protrusions 34 and 35 as the first and second engaging portions are disposed on the opposing member 22 side. Below, it demonstrates in accordance with embodiment of FIG.
The rotating member 17 is integrally formed with an operation portion 41 for deflecting the rotating member 17 along the rotating shaft 13. Thereby, the rotation member 17 can be easily displaced. Moreover, since the operation part 41 is integrally formed with the rotation member 17, there is no possibility of moving carelessly by vibration etc., and durability can also be improved.

The operation unit 41 functions as a push button. The operation portion 41 has a cylindrical shape and extends in the axial direction S through the inside of the rotation member 17 from the one side surface portion 30 of the rotation member 17 toward the opposite side surface portion 31. The distal end of the operation portion 41 passes through a through hole 42 formed in the center of the inner wall 25 of the opposing member 23 and protrudes from the outer surface of the opposing member 23.
The operation unit 41 is disposed on the rotation shaft 13 and is operated to be pressed from the through hole 42. If it is the operation part 41 arrange | positioned on the rotating shaft 13, since the rotating member 17 can be operated in the vicinity of the rotating shaft 13, the rotating member 17 can be easily deviated along the rotating shaft 13. Can do. Moreover, it is easy to operate by pressing the operation unit 41. Further, the operation portion 41 protruding from the through hole 42 is easy to operate.

  Referring to FIG. 3, in this angle fixing device 4, when the operation portion 41 is not operated, the rotating member 17 applies the urging force of the coil spring 37 so as to approach the inner wall 25 of the facing member 23. is recieving. For example, when the angular position of the rotating member 17 is a predetermined angle that can be fixed, the rotating member 17 is located at the end position closest to the opposing member 23 in the axial direction S, and the protrusions 34 and 35 are Mesh with each other. Thereby, the rotation member 17 is made unrotatable with respect to the fixed member 16, and the attachment angle is fixed.

  When the operation unit 41 is pushed along the axial direction S as shown by the white arrow in FIG. 3 from this state, the rotating member 17 is moved along the axial direction S against the bias of the coil spring 37. The protrusions 34 and 35 can be displaced so as to be disengaged (see FIG. 4). In this state, the rotating member 17 can be rotated to a desired angular position as indicated by a black arrow in FIG. 5, and the angular position (attachment angle) of the rotating member 17 can be adjusted in this state.

When the pressing operation of the operation unit 41 is stopped, the rotating member 17 is automatically displaced toward the facing member 23 along the axial direction S by the biasing force of the coil spring 37. By returning the displacement of the rotating member 17 in this manner, the projections 34 and 35 can be engaged with each other, and the device mounting portion 18 can be fixed at a desired angular position with respect to the base 20.
As described above, according to this embodiment, the angular position of the rotating member 17 can be easily adjusted by switching the engagement of the protrusions 34 and 35 and releasing the protrusion 34 and 35 by the displacement of the rotating member 17 in the axial direction S. In addition, the angular position of the rotating member 17 can be reliably fixed.

  Further, for example, an attachment target device such as the signal indicator lamp 2 is connected to the rotation member 17 via the device attachment portion 18, and the entire load acts on the rotation member 17. As a result, even when an external force such as vibration is applied, the engagement state of the protrusions 34 and 35 is maintained. In adjusting the angular position, for example, a member that can move integrally with the rotating member 17 such as the device mounting portion 18 or a rotating member 17 itself that is operated like the operating portion 41 can be obtained. 17 can be displaced along the rotation axis 13. At this time, it is not necessary to use a tool, and the work effort can be reduced.

  Since the elastic urging force of the coil spring 37 as an elastic member is used for maintaining the engaged state of the protrusions 34 and 35, the angular position can be reliably fixed. Further, the angular position of the rotating member 17 can be reliably fixed by the engagement of the protrusions 34 and 35. Further, since the plurality of protrusions 34 and 35 are arranged in an annular shape, the load applied to the protrusions 34 and 35 can be easily dispersed, and as a result, durability can be improved.

Moreover, the following modifications can be considered about this invention. The following description will focus on differences from the above-described embodiment. In addition, about another structure, it is the same as that of embodiment mentioned above.
FIG. 6 is a side view of the angle fixing device 4A according to the second embodiment of the present invention, and shows a state in which the mounting angle can be adjusted. With reference to FIG. 6, the operation portion 41 </ b> A of the angle fixing device 4 </ b> A is arranged eccentrically with respect to the rotation shaft 13. Correspondingly, the through hole 42A of the facing member 23 is formed as an arc-shaped long hole. By pressing the operation unit 41A, the rotation member 17 can be rotated as shown by the black arrow in FIG. 6 to adjust the angular position.

Moreover, although the operation parts 41 and 41A of each above-mentioned embodiment protruded from the through-holes 42 and 42A, it is not limited to this. For example, although not shown, it is also conceivable that the distal end of the operation portion is disposed in the through hole of the housing space forming member and does not protrude in the axial direction S from the periphery of the through hole.
FIG. 7 is a cross-sectional view of an angle fixing device 4B according to a third embodiment of the present invention, and shows a fixed state of the mounting angle. Referring to FIG. 7, the operation portion 41B of the angle fixing device 4B is connected via a protruding portion 44 formed integrally with the side surface portion 30 of the rotating member 17B and a metal fitting 45 fixed to the protruding portion 44. And an annular pull string 46. The operation unit 41B deflects the rotating member 17B by a pulling operation. The protruding portion 44 is disposed on the rotating shaft 13, protrudes outward in the axial direction S from the center of the side surface portion 30 of the rotating member 17 </ b> B, and is a through hole 42 </ b> B formed in the facing member 22. Has been passed. As indicated by the white arrow in FIG. 7, the rotation member 17 can be easily displaced by pulling the operation portion 41 </ b> B.

  FIG. 8 is a cross-sectional view of an angle fixing device 4C according to the fourth embodiment of the present invention, showing a fixed state of the mounting angle. Referring to FIG. 8, the angle fixing device 4 </ b> C is not provided with a dedicated member as the operation unit described above. However, as shown by a white arrow in FIG. By pushing or pulling on S, the rotating member 17C can be displaced in the axial direction S. It can be said that the device mounting portion 18 functions as an operation portion.

Moreover, in each above-mentioned embodiment, although several protrusion 34,35 was each arrange | positioned cyclically | annularly, it is not limited to this. For example, although not shown, it is also conceivable to arrange at least one of the plurality of protrusions 34 and 35 in a circular arc shape with ends. Furthermore, it is conceivable that the protrusions 34 and 35 are configured as shown in FIG.
FIG. 9 is an exploded perspective view of an angle fixing device 4D according to the fifth embodiment of the present invention. Referring to FIG. 9, the facing member 23 of the angle fixing device 4 </ b> D has a single protrusion 34 as a first engaging portion. Further, facing this, the rotating member 17 has a plurality of protrusions 35 and 35D as the second engaging portion. Here, the protrusion 35D corresponds to the protrusion 35 formed long in the circumferential direction. Three tooth spaces are formed between the plurality of protrusions 35 and 35D. At three fixing angles that can be fixed, the projection 34 fits into any of the three tooth spaces between the projections 35 and 35D.

It should be noted that the protrusion 35 on the rotating member 17 side may be a single, and a plurality of protrusions 34 of the opposing member 23 may be engaged with this.
Further, the angle fixing device 4D has an annular leaf spring 48 as an elastic member. The annular leaf spring 48 always urges the side surface portion 30 of the rotating member 17 in the axial direction S toward the opposing member 23 so as to maintain the engaged state of the protrusions 34 and 35. The annular leaf spring 48 is a leaf spring 48 having a substantially conical shape, and has a plurality of cantilever elastic tongues defined by slits. In place of the annular leaf spring 48, a substantially conical annular spring or a corrugated leaf spring (wave washer) may be used.

Further, at least one of the protrusions 34, 35, and 35D and the leaf spring 48 shown in FIG. 9 may be applied as an alternative to the embodiments and modifications described so far. As described above, the above-described embodiments and modifications thereof may be combined with each other as appropriate.
In each of the above-described embodiments, it may be considered to eliminate the elastic member. In this case, the rotating member may be manually returned to the axial direction S after adjusting the angle and fixed to the fixing member.

  In addition, various design changes can be made within the scope of matters described in the claims.

1 Signal indicator unit (lighting unit)
2 Signal indicator lamp (lighting device)
4, 4A, 4B, 4C, 4D Angle fixing device 13 Rotating shaft 17, 17B, 17C Rotating member 18 Equipment mounting portion 20 Base 21 Accommodating space 22, 23 Opposing member (accommodating space forming member)
24, 25 Inner side wall 26 Extension part (accommodating space forming member)
31 Side surface portion 32 Rotating circumferential surface 34 Projection (first engaging portion)
35, 35D protrusion (second engaging portion)
37 Coil spring (elastic member)
41, 41A, 41B Operation part 42, 42A, 42B Through-hole 48 Leaf spring (elastic member)
S axis direction

Claims (7)

A mounting base,
A housing space forming member that is formed at least partially on the pedestal and that forms a housing space between a pair of inner walls facing each other at a predetermined interval;
A rotation member provided to be rotatable around a predetermined rotation axis in the accommodation space;
The rotating peripheral surface of the rotating member is provided with a device mounting portion provided integrally with the rotating member,
A first engaging portion is provided on one inner wall of the pair of inner walls,
A second engaging portion that engages with the first engaging portion is provided on one side surface portion of the rotating member that faces the one inner wall surface,
The rotation member is displaced in a direction along the rotation axis to a state where the engagement between the first engagement portion and the second engagement portion is released, and the rotation member is moved in this state. An angle fixing device characterized in that the device mounting portion can be fixed at the desired angular position with respect to the pedestal by rotating to a desired angular position and returning the deflection of the rotating member. .   The angle according to claim 1, further comprising an elastic member that urges the rotating member in a direction in which the engagement between the first engagement portion and the second engagement portion is maintained. Fixing device.   The elastic member is interposed between the housing space forming member and the rotating member in a state of being elastically deformed when the first engaging portion and the second engaging portion are engaged with each other. The angle fixing device according to claim 2, wherein the angle fixing device is provided.   The operation part for deflecting the said rotation member along the said rotation axis is integrally formed in the said rotation member, The any one of Claim 1 to 3 characterized by the above-mentioned. An angle fixing device according to claim 1. The angle fixing according to claim 4, wherein the operation unit is disposed on the rotation shaft, and is operated from a through hole formed on the rotation shaft in the one inner wall. apparatus.   The pair of inner side walls of the housing space forming member are disposed on opposite sides of the rotating member along the rotating shaft and fixed to each other, and one of the pair of inner side walls is The angle fixing device according to any one of claims 1 to 5, wherein the angle fixing device is formed integrally with the pedestal.   A signal indicator lamp unit comprising: the angle fixing device according to any one of claims 1 to 6; and a signal indicator lamp attached so as to be adjustable in angle by the angle fixing device.

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