JP6525219B2 - Laminated unit for signal indicator and signal indicator - Google Patents

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a laminated unit for a signal indicator lamp and a signal indicator lamp including the laminated unit.

  The signal indicator light proposed in Patent Document 1 below includes a plurality of display units connected in a stacked state. Each display unit has a cylindrical glove that forms the outer shape of the display unit, and a plurality of internal parts disposed inside the glove. These internal components include a holder, a circuit board provided with a light source, a plurality of power feeding members formed of a long metal plate, and a plurality of supports. The holding body is a cylindrical columnar body having an axis arranged along the vertical direction so as to coincide with the central axis of the glove. The holder holds the circuit board at the upper end. The circuit board is held in a posture perpendicular to the central axis of the glove. In the holder, a plurality of holding holes aligned in the circumferential direction are formed along the axis. The power feeding member is press-fitted into each holding hole one by one. The plurality of support portions are arranged side by side in the circumferential direction of the glove, extend radially inward from the inner periphery of the glove, and support the holding body.

  When assembling the display unit, the holder with no circuit board attached is assembled to the glove. Then, after the circuit board is attached to the holder, the power feeding members are pressed into the holding holes of the holder one by one. In each power feeding member after press-fitting, a terminal provided at the upper end protrudes from the circuit board. This terminal is soldered to the circuit board.

  In the two display units adjacent to each other, the terminals projecting upward from the circuit board in the respective feed members of one display unit are in the holding holes with respect to the terminals provided at the lower ends of the respective feed members in the other display unit. It is pressed. Thus, the power supply members of both display units are electrically connected.

JP 2007-128774 A

  In Patent Document 1, it is necessary to use a dedicated power supply member to electrically connect adjacent display units. This contributes to the cost increase of the display unit. In addition, in a display unit using a plurality of such power supply members, the structure related to the power supply members is complicated and the number of parts is large. Therefore, it takes time to assemble the display unit. In particular, it takes time to manually solder a plurality of feed members to the circuit board one by one.

  Therefore, the present invention provides a laminated unit which is easy to assemble and can reduce the cost, and a signal indicator including the laminated unit.

  The present invention relates to a laminated unit (4) constituting a signal indicator (1) in a state of being laminated along a predetermined laminating direction (X), comprising: a first internal space (15); An outer member (10) formed with a pair of first openings (16) having a space opened to both sides in the stacking direction, and the outer member provided around the rotation axis (J) along the stacking direction A connecting portion (17) for connecting the outer member to another stacked unit of the signal display lamp by rotation of the outer member, a second inner space (32), and the second inner space in the stacking direction A pair of second openings (33) open to both sides of the inner member, the inner member (11) disposed in the first inner space, and the outer member, the inner member being the outer member Against It has a support portion (20) supported so as to be relatively rotatable around the rotation axis and relatively immovable in the stacking direction, and a pair of parallel main surfaces (60), these main surfaces being along the stacking direction And the substrate (12) housed in the second internal space in a fixed state and held by the inner member, provided at one end (12B) of the substrate in the stacking direction, and electrically connected to the outside And a second connector (66) provided at the other end (12C) of the substrate in the stacking direction for electrical connection with the outside. To provide a lamination unit for indicator lights.

In this section, alphanumeric characters in parentheses indicate reference numerals of corresponding components in the embodiments described later, but the invention is not intended to be limited by these reference numerals.
According to this configuration, each of the lamination units constituting the signal indicator light in the laminated state along the lamination direction includes the outer member, the inner member disposed in the first inner space of the outer member, and the first of the inner members And 2) a substrate accommodated in the internal space. Therefore, the lamination unit has a simple structure in which the number of parts is reduced.

  Electrical connection with the outside can be achieved by the first connector provided at one end in the stacking direction and the second connector provided at the other end in the stacking direction. Specifically, electrical connection between these stacked units can be achieved by connecting the second connector in one stacked unit and the first connector in another stacked unit between adjacent stacked units. .

  General-purpose connectors can be used as the first connector and the second connector. As a result, the cost of the stacked unit can be reduced. In addition, the first connector and the second connector can be attached to the substrate in advance. That is, at the time of assembly, the substrate and the first connector and the second connector can be handled as one part. As a result, the structure of the lamination unit can be simplified, and a lamination unit that is easy to assemble can be provided.

  The support portion provided on the outer member supports the inner member, and the inner member can rotate relative to the outer member about the rotation axis along the stacking direction and can not move relatively in the stacking direction. ing. Therefore, when the outer member is rotated around the rotation axis in order to connect adjacent stacked units to each other by the connection portion of the outer member or to release the connection, rotation of the outer member is It is not transmitted to the inner member holding the substrate. Therefore, even when the substrates of adjacent stacked units are joined by the first connector and the second connector respectively provided to them, and thereby the rotation of the inner member is restricted, the substrates are rotated by the rotation of the outer member. Can be prevented from twisting.

In one embodiment of the present invention, the stacked unit includes a light emitting element (68) provided on the main surface of the substrate, and light emitted from the light emitting element is transmitted through the inner member and the outer member to the outside. The inner member and the outer member have translucency so as to be released to the outside.
According to this configuration, the light emitted from the light emitting element is transmitted through the inner member and the outer member and emitted to the outside of the stacked unit. The stacking unit can function as a display unit that reports predetermined information by this light. In one embodiment of the present invention, the inner member constitutes a lens which diffuses the light emitted from the light emitting element over the entire region in the rotation direction about the rotation axis.

In one embodiment of the present invention, the inner member is a cylindrical body whose central axis is the pivot axis, and the substrate is offset from the pivot axis in a direction (S) orthogonal to the pivot axis. It is done.
According to this configuration, in the second inner space in which the substrate is accommodated in the inner member which is a cylindrical body, a space can be secured at a position overlapping the pivot axis.

In one embodiment of the present invention, at least one of the first connector and the second connector is disposed at a position overlapping with the pivot axis in the second internal space.
According to this configuration, the space at the position overlapping the pivot axis in the second internal space can be effectively used to arrange at least one of the first connector and the second connector. Moreover, a small diameter inner member may be used by size reduction of a lamination | stacking unit. In this case, the first connector and the second connector, which are general-purpose connectors, are disposed in the second internal space by using a relatively wide space, without reducing the size in accordance with the reduction in diameter of the inner member. Can.

  In one embodiment of the present invention, the stacking unit is provided at one end of the inner member at the end (11B) of the inner member, and at the other end of the inner member. (11C) provided with the other side engaging portion (43), and adjacent to each other by the engagement of the other side engaging portion and the one side engaging portion in the other stacked unit of the signal indicator light It includes a restricting portion (81) which restricts relative rotation of the inner members around the rotation axis.

  According to this configuration, when adjacent stacked units are connected, the other engagement portion of the inner member in the stacked unit and the one engagement portion of the inner member in the other stacked unit are engaged. Thereby, these inner members can be positioned in the rotation direction around the rotation axis. In one embodiment of the present invention, the second connector is configured by laminating the signal indicator light later than a timing at which relative rotation of the adjacent inner members around the rotation axis is restricted by the restriction portion. It is electrically connected to the said 1st connector in a unit.

In one embodiment of the present invention, the one side engaging portion is a plurality of protruding portions extending along the stacking direction, and the other side engaging portion is the one side engaging portion in the other stacking unit. It is a plurality of grooves which receive the joint portion one by one along the stacking direction, and the groove width (W) is different in each of the plurality of grooves.
According to this configuration, when connecting adjacent stacked units, the other side engaging portion configured as a groove in the stacked unit and the one side engaging portion configured as a protruding portion in the other stacked unit are provided. One by one along the stacking direction. At that time, each other side engaging portion can receive only one side engaging portion having a size matched to the groove width. Thereby, the erroneous insertion of the one side engaging part with respect to each other side engaging part can be prevented, and the inner members in the adjacent lamination units can be accurately positioned in the rotation direction around the rotation axis.

In one embodiment of the present invention, both end portions of the inner member in the stacking direction protrude outward in the stacking direction more than the first connector and the second connector.
According to this configuration, the first connector and the second connector are located inside the both ends of the inner member in the stacking direction. As a result, in the state where the lamination unit is present alone, these connectors are protected from coming in contact with external articles. In addition, when connecting adjacent stacked units, the inner members of these stacked units are connected before the second connector in the stacked unit and the first connector in the other stacked units are connected. . Thereby, it can prevent that these connectors will be damaged by contacting an inner member.

In one embodiment of the present invention, the inner member has an inner protrusion (41) protruding from the outer surface (11E), and the support portion divides the first inner space in the outer member. It has an overhanging portion (21) which projects from the surface (10A) into the first internal space and engages with the inner projection in the stacking direction.
According to this configuration, the projecting portion protruding from the inner surface of the outer member into the first inner space engages with the inner protrusion of the outer surface of the inner member in the stacking direction. Thus, the support portion having the projecting portion can support the inner member so as not to move relative to the outer member in the stacking direction.

In one embodiment of the present invention, the inner projection abuts on the projecting portion in the stacking direction, and is slidable relative to the projecting portion when the inner member is relatively rotated.
According to this configuration, the inner member can not move relative to the outer member in the stacking direction when the inner protrusion abuts on the projecting portion in the stacking direction. Then, the inner member slides relative to the projecting portion at the time of its relative rotation, thereby enabling relative rotation about the rotation axis with respect to the outer member.

  In one embodiment of the present invention, the inner protrusion includes a first inner protrusion (41A), and the outer member is provided on the inner surface and protrudes into the first internal space ( 25) from the first position in the first position where the first inner protrusion and the outer protrusion engage and in the rotational direction (Y) about the rotation axis. It is relatively rotatable with respect to the outer member between a second position which is separated and a second position where the engagement between the first inner protrusion and the outer protrusion is released.

  According to this configuration, when the laminated unit is present alone, if the inner member is disposed at the first position, the first inner protrusion of the inner protrusion and the outer protrusion on the inner surface of the outer member are provided. As a result, the inner member can be temporarily fixed so as not to rotate inadvertently. Thus, when connecting adjacent stacked units, it is possible to smoothly connect the second connector in the stacked unit and the first connector in the other stacked unit in the state of being aligned in the rotational direction. On the other hand, if the inner member is disposed at the second position, the relative movement between the inner members is prevented so that the rotation of the outer member is not impeded by the engagement between the first inner protrusion and the outer protrusion being released. It is possible to allow rotation.

In one embodiment of the present invention, the outer member has a first guide groove (26) penetrating the projecting portion along the stacking direction, and the inner member is in the second position. The first inner protrusion and the first guide groove are aligned.
According to this configuration, when the inner member is at the second position, the first inner protrusion aligns with the first guide groove of the outer member, whereby the inner protrusion abuts on the projecting portion in the stacking direction. It disappears. Thus, the inner member can be attached to and detached from the first inner space of the outer member by the first inner protrusion passing through the first guide groove along the stacking direction.

  In one embodiment of the present invention, the inner protrusion includes a second inner protrusion (41B) different from the first inner protrusion, and the protrusion is formed from the first guide groove in the rotation direction. A second guide formed at a distant position and extending along the stacking direction, for receiving and guiding the second inner projection when the inner member is inserted into the first internal space along the stacking direction The end (27B) of the second guide groove on the groove (27) and the downstream side (X2) of the insertion direction of the inner member with respect to the first internal space is closed to reach the end of the second guide groove And a closed portion (28) which is passed over by the second inner projection and engaged from the downstream side.

  According to this configuration, when the inner member is inserted into the first inner space along the stacking direction, the second inner protrusion is received and guided by the second guide groove of the projecting portion. When the second inner protrusion reaches the end of the second guide groove, the second inner protrusion gets over the closed portion and engages with the closed portion from the downstream side in the insertion direction. As a result, the inner member can not move relative to the outer member in the stacking direction.

One embodiment of the present invention provides a signal indicator light (1) comprising a laminated unit (4) having the features described above.
According to this configuration, since the assembly of the laminated unit is easy and the cost can be reduced, the manufacturing cost of the signal indicator can be reduced.
One embodiment of the present invention comprises a first lamination unit (4A) constituted by the lamination unit (4) having the characteristics described above, and the lamination unit (4) described above, in the lamination direction And a second lamination unit (4B) laminated to the first lamination unit, and the relative rotation around the rotation axis of the outer members of the first lamination unit and the second lamination unit, A signal in which the first stacked unit and the second stacked unit are connected at the connection portion, and the second connector of the first stacked unit and the first connector of the second stacked unit are connected Provide an indicator light (1).

  According to this configuration, since the first stacked unit and the second stacked unit can be easily assembled and the cost can be reduced, the manufacturing cost of the signal indicator can be reduced.

FIG. 1 is a perspective view of a signal indicator lamp according to an embodiment of the present invention. FIG. 2 is a perspective view of an outer member included in the laminated unit constituting the signal indicator. FIG. 3 is a perspective view of an inner member included in the stacking unit. FIG. 4 is a bottom view of the inner member. FIG. 5 is a plan view of the inner member. FIG. 6 is a perspective view of a substrate included in the stacking unit. FIG. 7 is a side view of the substrate. FIG. 8 is a side view of the substrate as viewed from a direction different from that of FIG. FIG. 9 is a plan view of the inner member in which the substrate is accommodated. FIG. 10 is a cross-sectional view taken along line AA of FIG. FIG. 11 is a cross-sectional view taken along line B-B of FIG. FIG. 12 is a schematic plan view of the stacking unit with the inner member in the first position. FIG. 13 is a cross-sectional view taken along line C-C of FIG. FIG. 14 is a cross-sectional view taken along the line D-D of FIG. FIG. 15 is a schematic plan view of the stacking unit with the inner member in the second position. FIG. 16 is a cross-sectional view taken along the line E-E of FIG. FIG. 17 is a cross-sectional view taken along line FF of FIG. FIG. 18 is a side view of two coupled inner members. FIG. 19 is a cross-sectional view taken along line G-G of FIG. FIG. 20 is a longitudinal sectional view of two stacked units in a connected and upright state.

  Hereinafter, an embodiment of the present invention will be specifically described with reference to the drawings. FIG. 1 is a perspective view of a signal indicator lamp 1 according to an embodiment of the present invention. The signal indicator 1 is used at a manufacturing site or the like of a factory. The signal indicator lamp 1 is formed in an elongated cylindrical shape. The posture of the signal indicator lamp 1 at the time of use can be arbitrarily set according to the use conditions. In the following, for convenience, the signal display lamp 1 will be described on the basis of the signal display lamp 1 when it is disposed vertically upright so that the vertical direction of the sheet in FIG. 1 coincides with the longitudinal direction of the signal display lamp 1. Therefore, in FIG. 1, the upper side of the sheet is regarded as the upper side of the signal indicator 1, and the lower side of the sheet is regarded as the lower of the signal indicator 1.

  The signal indicator 1 includes a base unit 2, a head cover 3, and a lamination unit 4. The base unit 2 is attached to an installation target such as equipment at a manufacturing site. The stacking unit 4 and the head cover 3 are stacked in this order along the longitudinal direction of the signal indicator lamp 1 with respect to the base unit 2. That is, the lamination unit 4 and the head cover 3 constitute the signal display lamp 1 in a state of being laminated along a predetermined lamination direction X, which is the longitudinal direction of the signal display lamp 1. The stacking direction X includes one side X1 and the other side X2 opposite to the one side X1. In this embodiment, one side X1 corresponds to the lower side of FIG. 1, and the other side X2 corresponds to the upper side of FIG. Note that there may be a reverse configuration in which one side X1 corresponds to the lower side in FIG. 1 and the other side X2 corresponds to the upper side in FIG. Further, in the signal indicator lamp 1 of the present embodiment, most of components other than electric components such as a substrate to be described later are made of resin, but the material of the signal indicator lamp 1 is not limited to resin.

  The central axis of the cylindrical signal indicator 1 is referred to as a pivot axis J. The rotation axis J extends in the stacking direction X. The circumferential direction around the rotation axis J is referred to as a rotation direction Y. Among the rotational directions Y, one side is referred to as a first rotational direction Y1, and the side opposite to the first rotational direction Y1 is referred to as a second rotational direction Y2. The first rotation direction Y1 corresponds to the counterclockwise direction when the signal indicator lamp 1 is viewed from the upper side in FIG. The second rotation direction Y2 corresponds to the clockwise direction when the signal indicator lamp 1 is viewed from the upper side in FIG. The radial direction about the rotation axis J is referred to as a radial direction Z. In the radial direction Z, the direction approaching the pivot axis J is referred to as the radially inner side Z1, and the direction away from the pivot axis J is referred to as the radially outer side Z2. Below, each component in the signal indicator lamp 1 is demonstrated using these directions on the basis of the rotational axis J. FIG.

  The base unit 2 is formed in a cylindrical shape with the pivot axis J as a central axis. The base unit 2 incorporates a power supply substrate (not shown) for supplying power to the stacked unit 4 and a control substrate (not shown) for controlling the operation of the stacked unit 4. The head cover 3 is located at the upper end of the signal indicator 1. The head cover 3 is formed in a disk shape with the rotation axis J as a central axis.

  One or more stacked units 4 exist in one signal indicator lamp 1. In this embodiment, two stacked units 4 are disposed adjacent to each other in the stacking direction X between the base unit 2 and the head cover 3. Of the two stacked units 4, the stacked unit 4 located on one side X1 may be referred to as a first stacked unit 4A, and another stacked unit 4 located on the other side X2 may be referred to as a second stacked unit 4B. Each of the stacked units 4 is formed in a cylindrical shape with the rotation axis J as a central axis.

  The respective outer peripheral surfaces of the base unit 2, the head cover 3 and the laminated unit 4 in the laminated state are substantially flush with each other, and constitute the entire outer peripheral surface of the signal indicator lamp 1. Next, the stacking unit 4 will be described in detail. Each lamination unit 4 includes an outer member 10 constituting an outer shell thereof, and an inner member 11 and a substrate 12 disposed in the outer member 10.

  FIG. 2 is a perspective view of the outer member 10. The attitude of the outer member 10 in FIG. 2 matches the attitude of the outer member 10 in FIG. The outer member 10 is formed in a cylindrical shape with the rotation axis J as a central axis. The outer member 10 is formed with a first internal space 15 constituting the hollow portion and a pair of first openings 16 positioned one on each end in the stacking direction X. The first internal space 15 is a cylindrical space whose central axis is the pivot axis J, and is partitioned by the inner surface 10A of the outer member 10. The pair of first openings 16 is formed in a circular shape with the rotation axis J as a central axis, and opens the first internal space 15 on both sides in the stacking direction X.

The outer peripheral surface 10B of the outer member 10 includes a small diameter portion 10C located at the end of the other side X2 and a large diameter portion 10D located on one side X1 of the small diameter portion 10C. The small diameter portion 10C is one step smaller diameter than the large diameter portion 10D. In the vicinity of the boundary between the small diameter portion 10C and the large diameter portion 10D, a groove 10E extending in the rotational direction Y is formed.
The outer member 10 is provided with a connecting portion 17. The connecting portion 17 includes a first connecting portion 18 and a second connecting portion 19. A plurality (four in this case) of the first connecting portions 18 exist, and are provided at intervals in the rotational direction Y at the end of the one side X1 in the inner surface 10A of the outer member 10. Each first connecting portion 18 has a first groove 18A linearly extending from an edge of one side X1 to the other side X2 in the inner surface 10A, and a first rotational direction from an end of the other side X2 in the first groove 18A And a second groove 18B linearly extending to Y1. Therefore, the whole of each first connection portion 18 is a groove formed in a substantially L shape when viewed from the radial direction Z. A protrusion 18C is formed at a position deviated in the first rotational direction Y1 in the second groove 18B. The protrusion 18C extends in the stacking direction X and crosses the second groove 18B while projecting to the radially inner side Z1.

  The second connection portions 19 are provided in the same number as the first connection portions 18 and provided at intervals in the rotational direction Y at the end of the other side X2 in the small diameter portion 10C of the outer peripheral surface 10B of the outer member 10 . Each second connection portion 19 is a protrusion extending in the rotational direction Y while projecting to the radially outer side Z2. A notch 19A which extends in the stacking direction X and cuts the surface of the radially outer side Z2 in the second connection portion 19 is formed at a position deviated in the first rotation direction Y1 in each second connection portion 19.

  At the end of the other side X2 in the inner surface 10A of the outer member 10, a support portion 20 is provided as a part of the inner surface 10A. The support portion 20 has an overhang portion 21 which projects into the first internal space 15 from the inner surface 10A. The projecting portion 21 is formed in a ring shape extending in the rotational direction Y with the rotational axis J as a central axis. The overhanging portion 21 is formed with one or more first recesses 23 and a second recess 24. In this embodiment, two first recesses 23 and two second recesses 24 are present and alternately arranged in the rotational direction Y. The distance between the adjacent first recess 23 and second recess 24 may or may not be constant. Each of the first recess 23 and the second recess 24 is recessed from the end face of the other side X2 in the projecting portion 21 to the one side X1 and exposed from the inner peripheral surface 21A of the projecting portion 21 to the radially inner side Z1.

  The bottom surface of the first recess 23 is a first bottom surface 23A located on the other side X2 of the end surface 21B of the one side X1 in the projecting portion 21, and a second bottom surface 23B located on the other side X2 than the first bottom surface 23A. Have. The first bottom surface 23A and the second bottom surface 23B are flat surfaces orthogonal to the pivot axis J and extend along the pivot direction Y. The edge of the radially outer side Z2 of the first bottom surface 23A and the edge of the radially inner side Z1 of the second bottom surface 23B are at the same position in the radial direction Z. The support portion 20 has an arc shape extending along the rotational direction Y so as to be bridged between the end of the radially outer side Z2 of the first bottom surface 23A and the end of the radially inner side Z1 of the second bottom surface 23B. The surface 23C is formed.

  An outer protrusion 25 extending in the stacking direction X while integrally projecting in the radial direction Z1, ie, the first internal space 15, is integrally provided at a position deviated in the second rotational direction Y2 in the arc-shaped surface 23C. . A first guide groove 26 penetrating the projecting portion 21 along the stacking direction X is formed on the inner circumferential surface 21A between the end face 21B of the projecting portion 21 on the one side X1 and the first bottom surface 23A. The first guide groove 26 is shifted in the first rotation direction Y1 relative to the outer protrusion 25 and is exposed at both the end face 21B of the overhang 21 and the first bottom surface 23A.

  The bottom surface 24A of the second recess 24 is a flat surface orthogonal to the rotation axis J and extends along the rotation direction Y. A second guide groove 27 extending from the end surface 21B to the front of the bottom surface 24A along the stacking direction X is formed on the inner circumferential surface 21A between the end surface 21B and the bottom surface 24A of the overhang portion 21. The second guide groove 27 is at the same position as the end of the bottom surface 24A on the first rotation direction Y1 side in the rotation direction Y, and is separated from the first guide groove 26. The end 27A of the second guide groove 27 on one side X1 is wider in the rotational direction Y as it goes to the one side X1, and is exposed at the end face 21B of the overhanging portion 21. In the overhang portion 21, a portion of the second guide groove 27 between the end 27B on the other side X2 and the bottom surface 24A is a closed portion 28 that closes the end 27B from the other side X2.

A plurality of lens portions 29 are formed in the rotational direction Y in a region between the projecting portion 21 and the first connecting portion 18 on the inner surface 10A of the outer member 10. Each of the lens portions 29 is a ridge extending in the stacking direction X with an arc-shaped cross section bulging toward the radially inner side Z1.
FIG. 3 is a perspective view of the inner member 11. The posture of the inner member 11 in FIG. 3 matches the posture of the inner member 11 in FIG. FIG. 4 is a bottom view of the inner member 11 in the attitude of FIG. FIG. 5 is a plan view of the inner member 11 in the attitude shown in FIG. Referring to FIG. 3, the inner member 11 is a cylindrical body having a rotation axis J as a central axis. The inner member 11 is formed with a second internal space 32 constituting the hollow portion and a pair of second openings 33 positioned one on each end in the stacking direction X. The second internal space 32 is a cylindrical space having the rotation axis J as a central axis, and is partitioned by the inner surface 11A of the inner member 11. The pair of second openings 33 is formed in a circular shape with the rotation axis J as a central axis, and the second internal space 32 is open on both sides in the stacking direction X. The inner member 11 is disposed between the one side end 11B which is an end of the one side X1, the other side end 11C which is an end of the other side X2, and the one side end 11B and the other side end 11C. It integrally includes a central portion 11D.

  In the one side end 11B, there are formed a first notch 34 and a second notch 35 that cut out the one side end 11B from the one side X1 along the stacking direction X. As shown in FIG. 4, a plurality of (here, two) first notches 34 are provided apart in the rotational direction Y, and a single second notch 35 is provided between the two first notches 34. A plurality (one here) is provided. The second notch 35 is thinner than the first notch 34 in the rotational direction Y. The first end portion 11B is divided into a plurality of (here, three) one-side engaging portions 36 in the rotational direction Y by the first notch 34 and the second notch 35. These one side engaging portions 36 are a plurality of projecting portions having an arc-shaped cross section and extending from the central portion 11D to the one side X1 along the stacking direction X.

  The three one-side engaging portions 36 have a first one-side engaging portion 36A having the largest dimension in the rotational direction Y and a second one-side engaging portion 36B having the second largest dimension in the rotational direction Y And a third one-side engaging portion 36C having the smallest dimension in the rotational direction Y. The first one side engaging portion 36A, the third one side engaging portion 36C, and the second one side engaging portion 36B are arranged in this order in the first rotational direction Y1. The third one side engaging portion 36C is disposed adjacent to the second one side engaging portion 36B. The first one side engaging portion 36A, the second one side engaging portion 36B, and the third one side engaging portion 36C are opposed to each other with the pivot axis J interposed therebetween.

  Referring to FIG. 3, the other end 11 </ b> C is formed with a first notch 37 that cuts out the other end 11 </ b> C from the other side X <b> 2 along the stacking direction X. A plurality of (in this case, two) first notches 37 are provided apart in the rotational direction Y. The two first notches 37 are at the same position one by one in the rotational direction Y as the two first notches 34 in the one side end 11B. The other end 11 </ b> C is divided into a plurality of (in this case, two) divided bodies 38 in the rotational direction Y by these first notches 37. These divisions 38 are projections having an arc-shaped cross section and extending from the central portion 11D along the stacking direction X to the other side X2. One of the two divisions 38 may be referred to as a first division 38A, and the other may be referred to as a second division 38B. The first divided body 38A and the second divided body 38B are opposed to each other with the pivot axis J interposed therebetween. In the rotation direction Y, the first divided body 38A is at the same position as the first one side engaging portion 36A, and the second divided body 38B is at the same position as the second one side engaging portions 36B and 36C.

  Each split body 38 is formed with a second notch 39 that cuts out the split body 38 along the stacking direction X from the other side X2. The second notch 39 is thinner than the first notch 37 in the rotational direction Y. A plurality of second notches 39 (two each) are provided apart from each other in the rotational direction Y. By these second notches 39, each divided body 38 is divided into a plurality of (in this case, three) subdivisions of subdivision 40A, subdivision 40B and subdivision 40C in the rotational direction Y. It is done. The small divided body 40A, the small divided body 40B, and the small divided body 40C are arranged in this order in the first rotation direction Y1. The subdivisions 40A and 40C are substantially the same in size in the rotational direction Y, and the subdivision 40B is the smallest.

  In the inner member 11, the outer surface 11 </ b> E of each divided body 38 is formed with an inner protrusion 41 that protrudes from the outer surface 11 </ b> E to the radially outer side Z <b> 2. The inner projecting portion 41 is present separately from the first inner projecting portion 41A and the first inner projecting portion 41A provided one by one in the small divided body 40A and the small divided body 40C of the first divided body 38A, respectively. A second inner projection 41B is provided, one for each of the subdivisions 40B of the divisions 38A and the second divisions 38B. The first inner protruding portion 41A is formed in a ridge elongated in the stacking direction X. The first inner projection 41A is positioned at the downstream end in the second pivoting direction Y2 in the small divided body 40A, and at the downstream end in the first pivoting direction Y1 in the small divided body 40C. There is. The second inner protruding portion 41B is formed in a substantially rectangular parallelepiped small piece shape.

  On the inner surface 11A of each of the divided members 38 in the inner member 11, a plurality of (here, five) ribs 42 extending along the stacking direction X while projecting radially inward Z1 are spaced apart in the rotational direction Y It is formed. Referring to FIG. 5, these ribs 42 are a first rib 42A provided one by one in subdivision 40A and a subdivision 40C of the first divided body 38A, and a subdivision of the second divided body 38B. And two second ribs 42B provided in two in 40A and one in the small divided body 40C. The first rib 42A is located at the downstream end in the second rotational direction Y2 in the small divided body 40A, and is located at the downstream end in the first rotational direction Y1 in the small divided body 40C. The second rib 42B is located at the end on both sides in the rotational direction Y in the small divided body 40A, and is located at the downstream end in the first rotational direction Y1 in the small divided body 40C.

  The other side engaging portion 43 is provided on the inner surface 11A of the other side end portion 11C by these ribs 42 (see FIG. 3). The other side engaging portion 43 is a plurality of grooves divided one by one between adjacent first ribs 42A and between adjacent second ribs 42B. The other side engaging portion 43 is recessed from the end face of the other side X2 at the other side end 11C to the one side X1, and is exposed to the radially inner side Z1 from the inner surface 11A of the other side end 11C.

  The other side engaging portion 43 partitioned between adjacent first ribs 42A in the first divided body 38A is referred to as a first other side engaging portion 43A. The first other side engaging portion 43A is provided across the small divided body 40A, the small divided body 40B and the small divided body 40C of the first divided body 38A. In the second divided body 38B, the other side engaging portion 43 partitioned between the second rib 42B of the small divided body 40C and the downstream second rib 42B in the first rotational direction Y1 in the small divided body 40A, It is called the second other side engaging portion 43B. The second other side engaging portion 43B is provided across the small divided body 40A, the small divided body 40B and the small divided body 40C of the second divided body 38B. The other side engaging portion 43 partitioned between the two second ribs 42B in the small divided body 40A is referred to as a third other side engaging portion 43C. In each other side engaging portion 43, the groove width W, that is, the dimension in the rotation direction Y is different, and in detail, the first other side engaging portion 43A, the second other side engaging portion 43B and the third other side engagement It becomes smaller in the order of the part 43C.

  A plurality of light guide members 45 extending in the stacking direction X are formed on the outer surface 11E of the central portion 11D while projecting outward in the radial direction Z2. The plurality of light guide members 45 are arranged substantially radially around the rotation axis J. The shape of the cross section orthogonal to the rotation axis J in the light guide member 45 may be different for each light guide member 45. The opposing direction of the first divided body 38A and the second divided body 38B opposed to each other with the pivot axis J interposed therebetween is referred to as an opposing direction S. The opposing direction S is orthogonal to the rotation axis J.

  Referring to FIG. 4, in the second internal space 32, arrangement as a part of the second internal space 32 at a position offset from the pivot axis J toward the first one side engaging portion 36A in the opposing direction S A space 46 is provided. The arrangement space 46 extends in the orthogonal direction T orthogonal to both the pivot axis J and the opposing direction S. Both ends of the arrangement space 46 in the orthogonal direction T constitute a pair of grooves 47 (portions with dotted hatching in FIG. 4) extending along the stacking direction X in the inner surface 11A of the central portion 11D.

  Of the pair of grooves 47, one is at the same position as one of the two first notches 34 in the rotational direction Y, and the other is the same as the remaining first notches 34 in the rotational direction Y In position. The inner surface 11A is provided with a groove bottom 47A of the groove 47 and a pair of side surfaces 47B rising from both ends in the opposing direction S of the groove bottom 47A. One positioning rib 48 extending in the stacking direction X is formed on the pair of side surfaces 47B so as to protrude toward each other. Each groove 47 is exposed from the end face of one side X1 in the central portion 11D. In the central portion 11D, a closed portion 49 is formed to close the end of the other side X2 of each groove 47 from the other side X2 (see FIGS. 3 and 5).

  In the groove bottom 47A of each groove 47, one through hole 50 shown in FIG. 3 is formed. The through hole 50 is formed substantially in a U shape as viewed in the radial direction Z, and penetrates the central portion 11D in the radial direction Z. In the central portion 11D, a portion surrounded by the substantially U-shaped through hole 50 is an engaging portion 51 which is longitudinal in the stacking direction X. There are two engaging portions 51, one facing each groove 47. The end of one side X1 in the engaging portion 51 is connected to the central portion 11D. Thus, the entire engaging portion 51 is cantilevered by the central portion 11D. The end of the engaging portion 51 on the other side X 2 is a tip 51 A protruding like a hook into the groove 47. The engagement portion 51 is elastically deformable so that the tip end portion 51A can move along the orthogonal direction T. The outer surface 11E of the central portion 11D is provided with a mark 52 indicating the insertion direction (here, the other side X2) of the substrate 12 into the inner member 11.

  Referring to FIG. 4, a plurality of members extending in the stacking direction X while projecting toward the arrangement space 46 at the same position as the first one side engaging portion 36A in the rotation direction Y on the inner surface 11A of the central portion 11D Here, the two protruding portions 53 are formed side by side in the rotational direction Y. A plurality of lens portions 54 are formed side by side in the rotational direction Y in a region of the central portion 11D in the inner surface 11A except the grooves 47 and the protrusions 53. Each of the lens portions 54 is a ridge extending in the stacking direction X with an arc-shaped cross section bulging toward the radially inner side Z1.

  FIG. 6 is a perspective view of the substrate 12. The attitude of the substrate 12 in FIG. 6 matches the attitude of the substrate 12 in FIG. The substrate 12 has a pair of parallel major surfaces 60. These main surfaces 60 are formed in a substantially rectangular shape elongated in the stacking direction X. Strictly speaking, on the main surface 60, a protrusion 61 which protrudes to the one side X1 is provided substantially at the center of the side of the one side X1. Of the pair of main surfaces 60, one that is seen in FIG. 6 is called “first main surface 60A”, and the other is called “second main surface 60B”. The substrate 12 has a pair of end faces 62 connecting between the edges in the short side direction U of the pair of main surfaces 60. In each end face 62, at the same position deviated to the other side X2, two concave portions 63 recessed toward the inside of the substrate 12 in the short direction U are formed in line in the stacking direction X. The recess 63 penetrates the substrate 12 in the plate thickness direction V. A portion sandwiched by the two concave portions 63 at each of both ends of the substrate 12 in the short direction U constitutes a convex portion 64 which protrudes outward in the short direction U.

  Referring to FIG. 7 which is a side view of substrate 12 viewed from thickness direction V, in substrate 12, portion 12A located on the other side X2 than recess 63 and protrusion 64 has a width of one step in width direction U It is getting smaller. Therefore, each convex portion 64 protrudes outward in the short direction U from the end surface 62 in the portion 12A. One first connector 65 and one second connector 66 for electrical connection to the outside are provided on the second main surface 60B of the substrate 12.

  The first connector 65 is provided on the end 12B of the substrate 12 on one side X1 in the substrate 12, and the second connector 66 is provided on the end 12C of the other side X2 on the substrate 12. The end portion 12B includes a protrusion 61 that protrudes to the one side X1 on the main surface 60, and the first connector 65 is disposed to overlap with the protrusion 61 in the plate thickness direction V. A plurality of insertion holes 65B (see FIG. 11 described later) are formed side by side in the short direction U on the end face 65A of the first side X1 of the first connector 65. The second connector 66 protrudes from the substrate 12 to the other side X2. The end face of the other side X2 of the second connector 66 is formed with a recess 66A penetrating the second connector 66 in the thickness direction V while being recessed to the one side X1. In the recess 66A, a plurality of pins 67 are arranged side by side in the short direction U.

  General-purpose connectors can be used as the first connector 65 and the second connector 66 provided for connection in the stacking direction X along the main surface 60 of the substrate 12 at the end of the substrate 12. Thus, the cost of the stacked unit 4 can be reduced. Further, the first connector 65 and the second connector 66 can be attached to the substrate 12 in advance. That is, at the time of assembly, the substrate 12 and the first connector 65 and the second connector 66 can be handled as one part. As a result, the structure of the stacking unit 4 can be simplified, and the stacking unit 4 can be provided which is easy to assemble and can reduce the assembly time. And since the assembly of the lamination | stacking unit 4 is easy in this way and cost reduction can be achieved, the manufacturing cost of the whole signal indicator lamp 1 can be reduced.

  Referring to FIG. 8 which is a side view of substrate 12 as viewed from short direction U, the region between first connector 65 and second connector 66 in stacking direction X on each major surface 60 of substrate 12 A light source 68 is provided. An LED may be used as an example of the light source 68. The light source 68 on each major surface 60 may be singular or plural, and in this embodiment, two light sources 68 are arranged side by side in the stacking direction X. In the substrate 12, each of the first connector 65 and the second connector 66 and each light source 68 are electrically connected.

  Hereinafter, assembly of the stacking unit 4 will be described. First, assembly of the substrate 12 to the inner member 11 will be described. First, the substrate 12 passes through the second opening 33A on one side X1 of the inner member 11 with respect to the arrangement space 46 of the second internal space 32 so that the end 12C on the other side X2 is at the top. It is inserted into side X2 (see FIGS. 3 and 4). At this time, the insertion direction of the substrate 12 can be grasped by the marks 52 (see FIG. 3) provided on the inner member 11.

  Referring to FIG. 9, in the substrate 12 inserted in the arrangement space 46, the short direction U coincides with the orthogonal direction T, and the thickness direction V coincides with the opposite direction S. The board 12 is moved from the disposition space 46 to the other side X2 in a state in which both ends in the short direction U are received one by one in the grooves 47 of the inner member 11 and sandwiched by the pair of positioning ribs 48 (see FIG. 4). move on. When the pair of convex portions 64 in the substrate 12 reaches the tip end portion 51A of the engaging portion 51 of the inner member 11, each engaging portion 51 elastically deforms so that the tip end portion 51A is separated from the convex portion 64. Thereby, the convex part 64 gets over the front end part 51A to the other side X2.

  Then, as shown in FIG. 10, which is a cross-sectional view taken along the line A-A of FIG. 9, the convex portion 64 is one side X1 with respect to the closing portion 49 which closes the end of the other side X2 Contact from In addition, each engaging portion 51 elastically deformed earlier returns to the original state, and the tip end 51A is fitted from the outside of the substrate 12 in the orthogonal direction T to the concave portion 63 positioned on one side X1 than the convex portion 64. Get stuck. As a result, the substrate 12 is held by the inner member 11, and the assembly of the substrate 12 to the inner member 11 is completed. In this state, the end portions 51A of the pair of engaging portions 51 sandwich the substrate 12 from the outside in the orthogonal direction T. Thereby, the substrate 12 is positioned in both the stacking direction X and the orthogonal direction T.

  Referring to FIG. 9, the substrate 12 assembled to the inner member 11 is accommodated in the second internal space 32 with the pair of main surfaces 60 along the stacking direction X, and stacked from the pair of second openings 33 Exposed to both sides in the direction X. In this state, both ends in the short direction U of the substrate 12 are continuously received in the grooves 47 one by one, and are sandwiched by the pair of positioning ribs 48 (see FIG. 4) in the respective grooves 47. The positioning rib 48 positions the substrate 12 in both the facing direction S and the rotational direction Y.

  Further, the substrate 12 is offset from the rotation axis J in one of the opposing directions S so as to approach the first divided body 38A. According to this configuration, in the second internal space 32 of the inner member 11, a space can be secured at a position overlapping the pivot axis J. On the other hand, the first connector 65 and the second connector 66 are disposed in the space in the second internal space 32 at a position overlapping the pivot axis J. That is, the space can be effectively used to arrange the first connector 65 and the second connector 66. In addition, the small-diameter inner member 11 may be used due to the miniaturization of the stacking unit 4. In this case, even if the first connector 65 and the second connector 66, which are general-purpose connectors, are not miniaturized according to the reduction in diameter of the inner member 11, the second internal space 32 is utilized by using a relatively wide space. Can be placed. In addition, since the lens portion 54 or the like facing the space in the inner member 11 can be freely formed using the space, the degree of freedom in design is improved. Note that only one of the first connector 65 and the second connector 66 may be disposed at a position overlapping the pivot axis J.

  As shown in FIG. 11, which is a cross-sectional view taken along the line B-B in FIG. 9, in the inner member 11 with the substrate 12 assembled, one end 11B protrudes beyond the first connector 65 to one side X1, and The side end 11C protrudes beyond the second connector 66 to the other side X2. That is, both end portions of the inner member 11 in the stacking direction X protrude outward in the stacking direction X more than the first connector 65 and the second connector 66. As a result, in the state where the lamination unit 4 is present alone, these connectors are protected from coming in contact with external articles.

  Further, for assembling the substrate 12 to the inner member 11, a snap structure constituted of the elastically deformable engaging portion 51 and the concave portion 63 and the convex portion 64 of the substrate 12 is used. Therefore, with regard to the assembly of the substrate 12 to the inner member 11, the workability can be improved, the time can be shortened, and recovery is easy when there is an assembly error. When the substrate 12 in the posture in which the first main surfaces 60A and 60B are in the opposite direction is inserted into the second inner space 32 of the inner member 11, the inner member 11 protrudes into the second inner space 32. The protruding portion 53 (see FIG. 9) contacts the second connector 66. Thereby, an assembly error in which the directions of the first main surfaces 60A and 60B are reversed is prevented in advance.

  Next, a procedure for assembling the inner member 11 to which the substrate 12 is assembled to the outer member 10 will be described. First, the inner member 11 passes through the first opening 16A on one side X1 of the outer member 10 along the stacking direction X with respect to the first internal space 15 so that the other side end 11C is at the top. Is inserted into the other side X2 (see FIG. 2). That is, the downstream side of the insertion direction of the inner member 11 with respect to the first inner space 15 is the other side X2. At the time of insertion, in the inner member 11, each first inner protrusion 41 A is aligned with the first guide groove 26 of the outer member 10 one by one, and each second inner protrusion 41 B is a second guide groove 27 of the outer member 10. And the outer member 10 in the rotational direction Y (see FIGS. 2 and 3). Therefore, when the inner member 11 is inserted into the first inner space 15, the first guide groove 26 receives and guides the first inner protrusion 41A, and the second guide groove 27 receives the second inner protrusion 41B. Guide.

  When the inner member 11 is continuously inserted into the other side X2, each first inner projection 41A advances in the first guide groove 26 to the other side X2. Just before the timing at which the first inner projection 41A passes the first guide groove 26, each second inner projection 41B reaches the end 27B of the other side X2 in the second guide groove 27 and is closed to the closed portion 28. Contact (see Figure 2). Then, the small divided body 40B (see FIG. 3) provided with the second inner protrusion 41B in the inner member 11 is elastically deformed to the radially inner side Z1. Thereby, each 2nd inner protrusion part 41B gets over the obstruction part 28 moving to radial direction inner side Z1. The timing at which each first inner projection 41A passes the first guide groove 26 and the timing at which each second inner projection 41B crosses the blocking portion 28 are substantially the same.

  When each second inner projection 41B passes over the closing portion 28, the subdivisions 40B elastically deformed earlier return to the original state. As a result, each second inner projecting portion 41B is engaged with the closing portion 28, that is, the bottom surface 24A of the second recess 24 of the projecting portion 21 from the other side X2. In this state, each first inner projecting portion 41A is received one by one in each first concave portion 23 of the projecting portion 21 of the support portion 20 of the outer member 10, and each second inner projecting portion 41B is formed in the projecting portion 21. One is received in each second recess 24 (see FIG. 2). Each first inner projection 41A is located at an end in the first recess in the first rotational direction Y1, and each second inner protrusion 41B is located in the second recess 24 at an end in the first rotational direction Y1. It is located in In this state, the assembly of the inner member 11 to the outer member 10 is completed to complete the stacked unit 4, and the inner member 11 is disposed in the first inner space 15 of the outer member 10 (see FIG. 1). .

  When the stacking unit 4 is completed, the first opening 16 on one side X1 of the outer member 10 and the second opening 33 on the one side X1 of the inner member 11 are substantially at the same position in the stacking direction X. Further, the first opening 16 on the other side X2 of the outer member 10 and the second opening 33 on the other side X2 of the inner member 11 are substantially at the same position in the stacking direction X. The substrate 12 assembled to the inner member 11 is exposed to the outside in the stacking direction X from the pair of first openings 16 and second openings 33.

  When the inner member 11 is completely rotated relative to the outer member 10 in the second rotation direction Y2 with respect to the outer member 10 in the completed stacked unit 4, the inner member 11 is moved to the first position shown in FIG. 12. Placed in position. Note that in FIG. 12, by projecting the projecting portion 21 in the radial direction Z larger than in actuality, the inner projecting portion 41 and its peripheral portion are illustrated so as to be separated from the outer peripheral surface of the outer member 10 radially inward Z1. (The same applies to FIGS. 13 to 17 described later). At the time of relative rotation of the inner member 11 to the first position, each first inner projection 41A slides against the first bottom surface 23A of the first recess 23 while being in contact with the other side X2, and each second inner The protrusion 41B slides on the bottom surface 24A of the second recess 24 while being in contact with the other side X2.

  In the state where the inner member 11 is at the first position, each first inner projecting portion 41A crosses the outer projecting portion 25 in the first recess 23 and is positioned at an end in the second rotation direction Y2, and the outer projecting portion 25 are engaged from the second rotation direction Y2. Incidentally, even if the first inner projection 41A is separated from the outer projection 25 in the second rotation direction Y2 as shown in FIG. 12, the first inner projection 41A is the second to the outer projection 25. It is in the engaged state from the movement direction Y2. Each second inner projection 41B may be located at the end of the second recess 24 in the second rotational direction Y2, or may be located midway in the second rotational direction Y2.

  Referring to FIG. 13 which is a cross-sectional view taken along the line C-C in FIG. 12, in a state where the inner member 11 is at the first position, each first inner projecting portion 41A continues to the first bottom surface 23A of the first recess 23. It is in contact with the other side X 2. Referring to FIG. 14 which is a cross-sectional view taken along the line D-D in FIG. 12, with the inner member 11 in the first position, each second inner protrusion 41B continues to the bottom surface 24A of the second recess 24. It is in contact with the other side X2. Further, in this state, the overhanging portion 21 of the support portion 20 of the outer member 10 is in contact with the light guide members 45 of the inner member 11 from the other side X2 from the other side X2.

  When the inner member 11 in the first position is fully rotated relative to the outer member 10 in the first rotation direction Y1 around the rotation axis J, the inner member 11 is in the second position shown in FIG. Return. The second position is a position away from the first position in the rotational direction Y. At the time of relative rotation of the inner member 11 to the second position, each first inner protrusion 41A slides against the first bottom surface 23A of the first recess 23 while being in contact with the other side X2, and each second inner The protrusion 41B slides on the bottom surface 24A of the second recess 24 while being in contact with the other side X2.

  In the state where the inner member 11 is at the second position, each first inner protrusion 41A is located at the end in the first rotation direction Y1 over the outer protrusion 25 in the first recess 23. Therefore, the engagement between the first inner protrusion 41A and the outer protrusion 25 is eliminated. Thereby, relative rotation of the inner member 11 can be permitted so as not to inhibit rotation of the outer member 10 for connecting the stacked units 4 to each other. The rotation range of the inner member 11 corresponds to the dimension of the first recess 23 in the rotation direction Y. Each second inner projection 41 B is located at the end of the second recess 24 in the first rotational direction Y 1 and is aligned with the second guide groove 27.

  Referring to FIG. 16 which is a cross-sectional view taken along the line E-E of FIG. 15, in a state in which the inner member 11 is at the second position, each first inner projection 41A is aligned with the first guide groove 26. The inner protrusion 41 does not contact the projecting portion 21 in the stacking direction X. Referring to FIG. 17 which is a cross-sectional view taken along the line F-F of FIG. 15, when the inner member 11 is in the second position, each second inner projection 41B continues to the bottom surface 24A of the second recess 24, that is, closed. It abuts against the portion 28 from the other side X2. Further, in this state, the overhanging portion 21 of the support portion 20 of the outer member 10 continues to contact the light guide members 45 of the inner member 11 from the other side X2 from the other side X2.

  In a state in which the inner member 11 is in the second position, after moving each first inner protrusion 41A to one side X1 in the first guide groove 26, and moving each second inner protrusion 41B over the closed portion 28 The second guide groove 27 can be moved to one side X1. Thereby, the inner member 11 can be separated from the first inner space 15 of the outer member 10 to the one side X1. By the procedure reverse to this, as described above, the inner member 11 can be attached to the first internal space 15 from one side X1. In the operation of mounting the inner member 11 in the first inner space 15, the respective first inner protrusions 41A pass the first guide grooves 26 and the respective second inner protrusions 41B get over the blocking portion 28. The inner member 11 is in the second position.

  As described above, the inner member 11 is rotatable relative to the outer member 10 between the first position and the second position. The projecting portion 21 of the support portion 20 of the outer member 10 is engaged from one side X1 to each inner projecting portion 41 of the inner member 11 at the first bottom surface 23A of the first recess 23 and the bottom surface 24A of the second recess 24. While being engaged, each light guide member 45 of the inner member 11 is engaged from the other side X2. That is, the support portion 20 supports the inner member 11 so as to be relatively rotatable around the rotation axis J with respect to the outer member 10 and incapable of relative movement in the stacking direction X. In addition, relative movement impossible here means that the inner member 11 does not remove | deviate from the outer member 10 carelessly in the lamination direction X. As shown in FIG. Therefore, the inner member 11 may be supported by the support portion 20 with play in the stacking direction X.

As described above, the stacked unit 4 includes the outer member 10, the inner member 11 disposed in the first inner space 15 of the outer member 10, and the substrate 12 accommodated in the second inner space 32 of the inner member 11. Including. Therefore, the stacking unit 4 has a simple structure in which the number of parts is reduced. Thereby, the assembly time of lamination unit 4 can be shortened.
The inner member 11 is disposed at the first position in a state where the single layer unit 4 is present. In this case, the first inner projection 41A of the inner projection 41 and the outer projection 25 on the inner surface 10A of the outer member 10 engage with each other to prevent the inner member 11 from rotating inadvertently. Yes (see Figure 12).

  Next, the procedure of connecting the stacked units 4 to each other by stacking the second stacked unit 4B on the first stacked unit 4A in FIG. 1 along the stacking direction X will be described. First, the second stacked unit 4B is disposed on the other side X2 of the first stacked unit 4A. Then, the first groove 18A of each first connecting portion 18 of the outer member 10 of the second stacked unit 4B and each second connecting portion 19 of the outer member 10 of the first stacked unit 4A are one in the rotational direction Y The stacking units 4 are aligned in the rotational direction Y so as to align one by one (see FIG. 2). For example, a linear mark 80 extending in the stacking direction X may be provided at one location in the rotational direction Y on the outer peripheral surface 10B of the outer member 10. In this case, when the first stacked unit 4A and the second stacked unit 4B are aligned in the rotational direction Y, the marks 80 of the stacked units 4 match each other in the rotational direction Y. This makes it possible to grasp that the alignment has been completed.

  FIG. 18 is a side view of the inner members 11 of the two stacked units 4 connected. FIG. 19 is a cross-sectional view taken along line G-G of FIG. In FIG. 19, for convenience of explanation, the one side engaging portion 36 of the inner member 11 is filled in black. As described above, in the state where the alignment between the first stacking unit 4A and the second stacking unit 4B is completed, the first other side engaging portion 43A of the inner member 11 of the first stacking unit 4A and the second stacking unit 4B The first one side engaging portion 36A of the inner member 11 is aligned in the rotational direction Y. Further, the second other side engaging portion 43B of the inner member 11 of the first stacking unit 4A and the second one side engaging portion 36B of the inner member 11 of the second stacking unit 4B are aligned in the rotational direction Y ing. Further, the third other side engaging portion 43C of the inner member 11 of the first stacking unit 4A and the third one side engaging portion 36C of the inner member 11 of the second stacking unit 4B are aligned in the rotational direction Y ing.

  In the state where the alignment is completed as described above, the first stacking unit 4A and the second stacking unit 4B are relatively moved in the stacking direction X to approach each other. Then, the small diameter portion 10C of the outer member 10 of the first stacked unit 4A is inserted from one side X1 into the first opening 16A of the one side X1 of the outer member 10 of the second stacked unit 4B (see FIG. 2) ). At this time, each second connection portion 19 of the first stacked unit 4A enters into the first groove 18A of each first connection portion 18 of the second stacked unit 4B, and proceeds to the other side X2. At the same time, as shown in FIG. 19, the other end 11C of the inner member 11 of the first stacked unit 4A is one side X1 with respect to the one end 11B of the inner member 11 of the second stacked unit 4B. It is fitted from the outside. At this time, in the first stacking unit 4A, the first other-side engaging portion 43A receives the first one-side engaging portion 36A along the stacking direction X, and the second other-side engaging portion 43B extends along the stacking direction X The third other side engaging portion 43C receives the third one side engaging portion 36C along the stacking direction X. That is, the other side engaging portion 43 of the first stacked unit 4A receives the one side engaging portion 36 of the second stacked unit 4B one by one along the stacking direction X.

  The first rib 42A, the second rib 42B, the first one side engaging portion 36A, the second one side engaging portion 36B, and the third one side engaging portion 36C constitute a restricting portion 81. The restricting portion 81 is formed by the engagement of the other side engaging portion 43 of the first stacked unit 4A and the one side engaging portion 36 of the second stacked unit 4B. The inner members 11 are connected to each other. In detail, the adjacent first ribs 42A abut on both ends of the first one-side engaging portion 36A, thereby restricting the movement of the first one-side engaging portion 36A around the rotation axis J. Further, the adjacent second rib 42B abuts on both ends of the second one-side engaging portion 36B and both ends of the third one-side engaging portion 36C, respectively, whereby the second one side around the rotation axis J is obtained. The movement of the engaging portion 36B and the third one-side engaging portion 36C is restricted. Thus, relative rotation around the rotation axis J of the inner members 11 is restricted. Thus, the inner members 11 can be positioned in the rotational direction Y around the rotational axis J. Further, each other side engaging portion 43 can receive only the one side engaging portion 36 having a size matching the groove width W (see FIG. 5). Thereby, the erroneous insertion of the one side engaging part 36 with respect to each other side engaging part 43 can be prevented, and the inner members 11 in the adjacent stacked units 4 can be accurately positioned in the rotational direction Y. The entire one side engaging portion 36 and the other side engaging portion 43 after connection may be regarded as the restricting portion 81.

  FIG. 20 is a longitudinal sectional view of two stacked units 4 in the connected and upright state. In addition, the first connector 65 of the second stacked unit 4B is fitted from the other side X2 into the recess 66A of the second connector 66 of the first stacked unit 4A after the timing when the inner members 11 are connected to each other. The pins 67 of the 2-connector 66 are inserted one by one into the insertion holes 65B in the end face 65A of the first connector 65 from one side X1 (see FIG. 11). Thus, the second connector 66 of the first stacked unit 4A and the first connector 65 of the second stacked unit 4B are electrically and mechanically connected. Since the inner members 11 are connected before the first connector 65 and the second connector 66 are connected, it is possible to prevent the connectors from being damaged by coming into contact with the inner member 11.

  Further, at the stage before the first connector 65 and the second connector 66 are connected, the inner members 11 of the first stacked unit 4A and the second stacked unit 4B are at the first position. Therefore, the second connector 66 in the first stacked unit 4A and the first connector 65 in the second stacked unit 4B can be smoothly connected in an aligned state in the rotational direction Y. Note that the first connector 65 and the second connector 66 are substrates like a so-called floating connector so that an error in the relative position between the first stacked unit 4A and the second stacked unit 4B can be absorbed to some extent. It may be slightly movable in the state provided at 12.

  Referring to FIG. 2, with the relative movement of first stacked unit 4A and second stacked unit 4B in the stacking direction X, second connecting portion 19 reaches the end of second groove 18A on the other side X2. Then, it does not advance to the other side X2 any more. In this state, the outer members 10 of the first stacked unit 4A and the second stacked unit 4B are pivoted along the axis J so that the second stacked unit 4B is displaced in the second rotation direction Y2 with respect to the first stacked unit 4A. Relatively rotate around. As a result, each second connection portion 19 of the first stacked unit 4A is transferred from the first groove 18A to the second groove 18B at each first connection portion 18 of the second stacked unit 4B, and the inside of the second groove 18B. In the first rotational direction Y1. The outer peripheral surface 10B of the outer member 10 of the stacking unit 4 may be provided with a mark 82 indicating the direction in which the outer member 10 is rotated for connection (see FIG. 1).

  With the relative rotation of the outer members 10, the inner members 11 in a state of being connected to each other in the first stacked unit 4A and the second stacked unit 4B are now held against the outer members 10 while holding the substrate 12. Relative rotation from the first position to the second position. When the ridges 18C of the second grooves 18B of the first connection portions 18 fit into the notches 19A of the second connection portions 19, the relative rotation between the first lamination unit 4A and the second lamination unit 4B is stopped. .

  In this state, the second connection portions 19 of the first stacked unit 4A and the first connection portions 18 of the second stacked unit 4B are engaged with each other. Therefore, each second connection portion 19 can not move in the stacking direction X by being positioned in the second groove 18B, and can not move in the rotation direction Y by the protrusion 18C fitting into the notch 19A. Therefore, the outer members 10 of the first stacked unit 4A and the second stacked unit 4B are connected to each other in the connecting portion 17 so as not to be relatively movable in both the stacking direction X and the rotational direction Y. In this state, the marks 80 of the stacked units 4 are shifted in the rotational direction Y (see FIG. 1). As described above, the tool is not used by only two simple operations of relatively moving the first stacking unit 4A and the second stacking unit 4B in the stacking direction X and relatively rotating in the rotation direction Y. It can also be linked. The first stacked unit 4A and the second stacked unit 4B can be easily separated by following the procedure reverse to that of the connection.

  The inner member 11 is rotatable relative to the outer member 10 while holding the substrate 12. Therefore, when the outer member 10 is rotated around the rotation axis J in order to connect adjacent stacked units 4 with each other by the connection portion 17 of the outer member 10 or to release the connection, the outer member The rotation of 10 is not transmitted to the inner member 11 holding the substrate 12. Therefore, even when the substrates 12 of the adjacent stacked units 4 are joined by the first connector 65 and the second connector 66 respectively provided to them, and thereby the rotation of the inner member 11 is restricted, the outer member The substrate 12 can be prevented from being twisted by the rotation of 10.

  The base unit 2 is provided with the aforementioned connecting portion 17 (the second connecting portion 19 in this embodiment), and the head cover 3 is also provided with the connecting portion 17 (the first connecting portion 18 in this embodiment) ing. The base unit 2 and the first lamination unit 4A are coupled, and the head cover 3 and the second lamination unit 4B are coupled, in the same procedure as coupling in the coupling portion 17 of the first lamination unit 4A and the second lamination unit 4B. Then, as shown in FIG. 1, the signal indicator lamp 1 is completed. The first connector 65 of the first stacked unit 4A is connected to a connector (not shown) provided on the base unit 2. Thereby, the power from the power supply substrate (not shown) contained in the base unit 2 is supplied to the respective substrates 12 of the first stacked unit 4A and the second stacked unit 4B. A control signal from a control substrate (not shown) incorporated in the base unit 2 is transmitted to each of the substrates 12 of the first stacked unit 4A and the second stacked unit 4B.

  Thereby, referring to FIG. 20, in each of the first stacked unit 4A and the second stacked unit 4B, each light source 68 in the pair of main surfaces 60 of the substrate 12 emits light in a predetermined light emission pattern. The outer member 10 and the inner member 11 of each stacked unit 40 are transparent or translucent, and have translucency. Therefore, the light emitted from each light source 68 is incident from the inner surface 11A of the inner member 11 into the inner member 11 and spreads radially through the light guide member 45 and then transmits through the outer member 10 to the outer member It is discharged from the outer peripheral surface 10 B of 10 to the outside of the stacked unit 4. The stacking unit 4 can function as a display unit that reports predetermined information by this light. The lens portion 54 of the inner surface 11A of the inner member 11 and the lens portion 29 of the inner surface 10A of the outer member 10 contribute to diffuse the light to the entire region in the rotational direction Y.

  Although each lamination unit 4 has the same form, at least one of the outer member 10 and the inner member 11 in each lamination unit 4 is different from the other lamination units 4 so that the luminescent color is different for each lamination unit 4. May be colored in different colors. Alternatively, while the outer member 10 and the inner member 11 of each stacked unit 4 have the same color, the light emission color of the light source 68 may be different for each stacked unit 4.

  In addition, a packing 83 such as an O-ring is fitted in the groove 10E in the small diameter portion 10C of the outer member 10 of each stacked unit 4. The packing 83 of the first stacked unit 4A seals the gap between the small diameter portion 10C of the outer member 10 of the first stacked unit 4A and the outer member 10 of the second stacked unit 4B. Water is prevented from entering the unit 4.

The present invention is not limited to the embodiments described above, and various modifications are possible within the scope of the claims.
For example, the stacked unit 4 may not be the display unit described above, but may be a buzzer unit that has a built-in buzzer and sounds an alarm, or may be a communication unit having a communication function for communicating with an external device. Good.

  Also, the first connector 65 provided on the substrate 12 may be a connector patterned on the substrate 12 like a so-called edge connector. In that case, the second connector 66 is configured as a socket for receiving the first connector 65. The insertion port of the second connector 66 into which the first connector 65 is inserted is disposed at a position overlapping the substrate 12 as viewed from the stacking direction X so as to correspond to the first connector 65.

Moreover, in each component which comprises the signal indicator lamp 1, you may provide suitably the chamfer 85 for preventing catching between components at the time of assembling the signal indicator lamp 1 (refer each figure. ).
Further, the descriptions of “relative movement” and “relative rotation” in the above include the case of moving both of the two parts and the case of moving one of the two parts stationary and moving only the other.

DESCRIPTION OF SYMBOLS 1 ... Signal indicator light 4 ... Stacking unit 4A ... 1st lamination unit 4B ... 2nd lamination unit 10 ... Outer member 10A ... Inner surface 11 ... Inner member 11B ... One side end 11C ... Other side end 11E ... Outer surface 12 ... substrate 12B ... end 12C ... end 15 ... first internal space 16 ... first opening 17 ... connecting part 20 ... supporting part 21 ... projecting part 25 ... outer projecting part 26 ... first guide groove 27 ... second guide Groove 27B: End on the other side 28: Blocked part 32: Second internal space 33: Second opening 36: One side engaging part 41: Inner projection 41A: first inner projection 41B: second inner projection 43 ... other side engaging part 60 ... main surface 65 ... first connector 66 ... second connector 68 ... light source 81 ... regulating part J ... rotation axis S ... opposite direction W ... groove width X ... lamination direction X2 ... other side Y ... Rotation direction

Claims (11)

It is a lamination | stacking unit which comprises a signal indicator lamp in the state laminated | stacked along the predetermined | prescribed lamination direction, Comprising:
An outer member in which a first inner space and a pair of first openings in which the first inner space is opened to both sides in the stacking direction are formed;
A connecting portion provided on the outer member, for connecting the outer member to another stacked unit of the signal display lamp by the rotation of the outer member around a rotation axis along the stacking direction;
A second internal space, and a pair of second openings in which the second internal space is opened to both sides in the stacking direction, and an inner member disposed in the first internal space;
A support portion provided on the outer member, the inner member being supported relative to the outer member so as to be relatively rotatable around the rotation axis and not to be relatively movable in the stacking direction;
A substrate having a pair of parallel main surfaces, the main surfaces being accommodated in the second internal space in a state along the stacking direction, and held by the inner member;
The inner member has one side engaging portion provided at an end portion on one side in the stacking direction, and the other side engaging portion provided at the other end portion in the stacking direction in the inner member. A restricting portion that restricts relative rotation of the adjacent inner members around the pivot axis line by engagement of the other side engaging portion with the one side engaging portion in the other stacked unit of the signal indicator light. When,
A first connector provided at the end of the one side of the substrate, for electrical connection to the outside;
A second connector provided on the other end of the substrate and electrically connected to the outside, wherein the relative rotation of the adjacent inner members about the rotation axis is made by the restriction portion. And a second connector electrically connected to the first connector in another stacked unit of the signal indicator light after the regulated timing. The one side engaging portion is a plurality of projecting portions extending along the stacking direction.
The other side engaging portion is a plurality of grooves for receiving the one side engaging portion in the other stacked unit one by one along the stacking direction,
The lamination unit according to claim 1, wherein groove widths are different in each of the plurality of grooves. It is a lamination | stacking unit which comprises a signal indicator lamp in the state laminated | stacked along the predetermined | prescribed lamination direction, Comprising:
An outer member in which a first inner space and a pair of first openings in which the first inner space is opened to both sides in the stacking direction are formed;
A connecting portion provided on the outer member, for connecting the outer member to another stacked unit of the signal display lamp by the rotation of the outer member around a rotation axis along the stacking direction;
A second inner space, and a pair of second openings formed by opening the second inner space on both sides in the stacking direction, and a cylindrical inner member disposed in the first inner space;
A support portion provided on the outer member, the inner member being supported relative to the outer member so as to be relatively rotatable around the rotation axis and not to be relatively movable in the stacking direction;
A substrate having a pair of parallel main surfaces, the main surfaces being accommodated in the second internal space in a state along the stacking direction, and held by the inner member;
A first connector provided at one end of the substrate in the stacking direction and electrically connected to the outside;
A second connector provided on the other end of the substrate in the stacking direction on the substrate and electrically connected to the outside;
A light emitting element directly provided on each of the pair of main surfaces of the substrate and accommodated in the second internal space , wherein the inner surface defines the second internal space on the inner surface and the pivoting axis side Including a light emitting element facing from
The lamination unit for signal indicator lights in which the inner member and the outer member have translucency so that the light emitted from the light emitting element is transmitted through the inner member and the outer member and emitted to the outside. A lens portion is formed on the inner surface of the inner member to diffuse the light emitted from the light emitting element over the entire area in the rotational direction about the rotational axis .
Wherein the outer surface of the inner member, the plurality of light guide members disposed in a substantially radially Ru is formed around a rotation axis, stacking unit according to claim 3. The inner member is a cylindrical body having the rotation axis as a central axis,
The stacking unit according to any one of claims 1 to 4, wherein the substrate is offset from the pivot axis in a direction orthogonal to the pivot axis.   The stacking unit according to claim 5, wherein at least one of the first connector and the second connector is disposed at a position overlapping the pivot axis in the second inner space.   The lamination unit according to any one of claims 1 to 6, wherein both end parts of the inner member in the lamination direction protrude outward in the lamination direction from the first connector and the second connector. The inner member has an inner projection which protrudes from its outer surface,
The support portion has an overhang portion which projects into the first internal space from an inner surface which divides the first internal space in the outer member and engages with the inner projection in the stacking direction. The lamination | stacking unit as described in any one of 1-7.   The stacking unit according to claim 8, wherein the inner protrusion abuts on the protruding portion in the stacking direction, and is slidable relative to the protruding portion when the inner member is relatively rotated.   A signal indicator light comprising the laminated unit according to any one of claims 1 to 9. A first lamination unit constituted of the lamination unit according to any one of claims 1 to 9 and a lamination unit according to any one of claims 1 to 9 and extending along the lamination direction And a second lamination unit laminated on the first lamination unit,
The relative rotation of the outer members of the first stacking unit and the second stacking unit around the rotation axis connects the first stacking unit and the second stacking unit at the connection portion,
The signal indicator light in which the said 2nd connector of the said 1st lamination | stacking unit and the said 1st connector of the said 2nd lamination | stacking unit are connected.

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