JP7007849B2 - Reading light - Google Patents

Description

The present invention relates to a reading light provided corresponding to a seat for a vehicle and irradiating light.

Conventionally, many known reading lights of this type are provided on the seat itself or near the seat and irradiate the seated person with spot light for lighting (see, for example, Patent Documents 1 and 2). ). In any of the reading lights, a switch for turning on or off the light source was attached to the seat sode (middle elbow, side elbow), etc., which is easy for the seated person to operate, separately from the reading light. In addition, reading lights generally do not have a function of dimming the illuminance of spot light.

Japanese Unexamined Patent Publication No. 2011-37386 Japanese Unexamined Patent Publication No. 2014-101102

However, in the conventional general reading lamp described in the above-mentioned patent document, the reading lamp itself and its switch are separately provided at separate locations, so that the number of parts increases and the installation man-hours increase, which is a factor of cost increase. There was a problem that it became. In particular, the seat sode to which the switch is attached lacks a substantial space for arranging the switch, and the switch can not be easily attached.

In addition, since the control circuit that controls the lighting of the reading light is generally placed near the switch, if the reading light is far from the switch, the electrical wiring between the control circuit / switch and the reading light becomes long. It will be stretched. Therefore, noise is likely to occur in the electrical wiring, and there is a risk of lacking electrical stability.

Furthermore, since the reading light does not have a dimming function, the seated person cannot adjust the brightness to his / her taste, which is inconvenient. If a dimming function is newly added to the reading light, a switch for dimming is required separately in addition to the improvement of the control circuit, and the number of parts is further increased, resulting in an increase in installation man-hours.

The present invention has been made by paying attention to the above-mentioned problems of the prior art, which enables cost reduction by reducing the number of parts and mounting man-hours, has good mountability in a limited space, and is electrically operated. The purpose is to provide a reading light that can improve the stability and can suppress an increase in the number of parts and installation man-hours even if a dimming function is added.

The gist of the present invention for achieving the above-mentioned object lies in the inventions of the following items.
[1] In a reading light (10) provided corresponding to a vehicle seat (1) and irradiating light.
A lamp body (20) including a light source, a case (30) that can be relatively displaced with respect to the lamp body (20) in a state where the lamp body (20) is housed, and the lamp body (20) are fixed. It has a support (40) that supports the case (30) in a displaceable state in the above-mentioned state.
The lamp body (20) has a surface other than the light emitting surface (23) that irradiates the light of the light source to the outside as a spherical surface.
A part of the case (30) is formed in a cylindrical shape, and a storage portion (32) that surrounds the spherical surface of the lamp body (20) and rotatably holds the lamp body (20) on the front end opening side thereof. ), Which is pivotally supported by the support (40) so as to be rotatable relative to the central axis with respect to the lamp (20), and is displaced with respect to the support (40). 31) and
The operation unit (31) is formed as a flange-shaped rotary knob around the front end open end of the case (30), and is a first switch for turning on or off the light source, and / or when the light source is on. It also serves as a second switch to adjust the illuminance .
It has one variable resistor (50) constituting the first switch and the second switch.
A reading lamp (10) characterized in that the operation shaft (51) of the variable resistor (50) is connected to the case (30) side via a gear mechanism so as to be interlocked with the operation of the rotary knob. ).

[ 2 ] The gear mechanism is provided on a drive gear (33) provided around the rear end opening end of the case (30) and an operation shaft (51) of the variable resistor (50) to drive the drive. The reading light (10) according to the above [ 1 ], wherein the gear (33) is provided with a driven gear (52) that rotatably meshes with the gear (33).

[ 3 ] It has a control circuit (60) connected to the light source and the variable resistor (50).
The above-mentioned [ 1 ] or [ 2 ], wherein the variable resistor (50) and the control circuit (60) are integrally attached to the support (40) and configured as a unit, respectively. Reading light (10).

[ 4 ] The lamp body (20) is capable of adjusting the optical axis direction of the light source as the center of the light emitting surface (23) rotates in a direction deviating from the central axis of the case (30). The reading light (10) according to the above [ 1 ], [ 2 ] or [ 3 ], wherein the case (30) is non-rotatably supported by the support (40) when the case (30) is rotated.

[ 5 ] A pin (25) is projected from the rear of the spherical surface facing the light emitting surface (23) of the lamp body (20), and the support (40) is in contact with the rear surface of the spherical surface of the lamp body (20). A guide groove (44b) is provided in which the pin (25) is engaged and guided in a fixed direction, and the optical axis direction of the light source is within a range in which the pin (25) moves in the guide groove (44b). Adjustable and
The lamp body (20) is supported in a state of being pressed against the support body ( 40 ) by an urging means (27) provided on the pin (25). ] The reading light (10) described in.

Next, the operation based on the above-mentioned solution will be described.
According to the reading light (10) according to the above [1], the case (30) accommodating the light body (20) can be displaced with respect to the support (40), and the displacement of the case (30). Realizes switching operation by. The operation unit (31) for displacing the case (30) uses a part of the case (30) as it is, and there is no need to prepare special switch parts, and the case (30) itself switches. It will also serve as.

The switch here is a first switch for turning on or off the light source, and / or a second switch for dimming the illuminance when the light source is on. Basically, it is preferable that the operation unit (31) also serves as a first switch for turning on or off the light source, but it is also possible to configure the operation unit (31) to also serve as only a second switch for dimming the illuminance of the light source. Is.

By configuring the switch so as to serve at least the second switch, the illuminance of the light source can be adjusted, and the seated person can adjust the brightness to his / her taste. When both switches are configured to be combined, the number of parts and installation man-hours related to the switch can be further reduced.

In this way, by using the case (30) of the reading light (10) itself as a switch as it is, the light source and the switch, and the electric wiring connecting these and the control circuit (60) are not stretched for a long time. The shortness that connects the upcoming parts is sufficient. Therefore, the possibility that noise is generated in the electrical wiring can be reduced, and the electrical stability can be improved.

Further , the lamp body (20) has a spherical surface other than the light emitting surface (23), and is rotatably held by a storage portion (32) on the front end opening side of the cylindrical case (30). The case (30) is rotatably supported by the support (40) around its central axis, where the case (30) is relative to the lamp body (20) in the storage portion (32). It is relatively rotatable. Therefore, in the case (30), even when the lamp body (20) in the storage portion (32) is fixed to the support body (40), the rotation of the lamp body (20) is not hindered by the support body (20). It can be freely rotated with respect to 40).

Further , the displacement of the case (30) with respect to the support (40) is the rotation around the central axis, but the operation unit (31) for rotating the case (30) is the front end open end of the case (30). It is a rotary knob formed in a flange shape around it, and can be easily operated from the outside as a part of the reading light (10). If the rotary knob is picked up by a finger and turned, the case (30) rotates with respect to the support (40) and the lamp body (20). The rotation operation of this rotation knob is used as it is as the operation of the switch.

Further , the operation shaft (51) of the first switch and one variable resistor (50) constituting the second switch is linked to the operation of the rotary knob via the gear mechanism. 30) It is connected to the side. As a result, the operation shaft (51) of the variable resistor (50) is rotated by the rotation operation of the rotation knob, and it is possible to turn on or off the light source and adjust the illuminance of the light source.

Here, the gear mechanism specifically includes, for example, as described in the above [ 2 ], the drive gear (33) provided around the rear end opening end of the case (30) and the variable resistor (50). When the drive gear (33) is provided with a driven gear (52) that rotatably meshes with the drive gear (33), the drive gear (33) can be configured simply and compactly.

As described in [ 3 ] above, the reading light (10) includes a light source and a control circuit (60) connected to the variable resistor (50), wherein the variable resistor (50) and the control circuit (50) are provided. 60) may be integrally attached to the support (40) to form a unit. This makes it possible to construct it more compactly, and it becomes easy to handle and install it as one part.

As described in [ 4 ] above, the reading light (10) can also be configured so that the optical axis direction of the light source can be adjusted. That is, the lamp body (20) can adjust the optical axis direction of the light source as the center of the light emitting surface (23) rotates in a direction deviating from the central axis of the case (30). The lamp body (20) is non-rotatably supported by the support (40) so that the lamp body (20) does not rotate together with the rotation of the case (30). As a result, the optical axis of the light source can be easily adjusted by simply moving the lamp body (20) so as to rotate it.

More specifically, as described in [ 5 ] above, a pin (25) is projected behind the spherical surface of the lamp body (20) facing the light emitting surface (23) of the lamp body (20). A guide groove (44b) with which the pin (25) engages and guides in a certain direction is provided on the support (40) with which the rear of the spherical surface is in contact with each other. This makes it possible to adjust the optical axis direction of the light source within the range in which the pin (25) moves in the guide groove (44b). Here, the lamp body (20) is pressed against the support body (40) by the urging means (27) provided on the pin (25), so that when the case (30) is rotated by the operation unit (31), the lamp body (20) is pressed against the support body (40). The lamp body (20) can be held together with the case (30) so as not to move carelessly.

According to the reading lamp according to the present invention, the cost can be reduced by reducing the number of parts and the mounting man-hours, the mounting property is good in a limited space, the electrical stability can be improved, and moreover, it is possible to improve the electrical stability. Even if a dimming function is added, it is possible to suppress an increase in the number of parts and installation man-hours.

It is a vertical sectional view which shows the reading lamp which concerns on embodiment of this invention. It is a perspective view which looked at the reading lamp which concerns on embodiment of this invention from the front. It is a perspective view which looked at the reading lamp which concerns on embodiment of this invention from the rear. It is a top view of the seat provided with the reading light which concerns on embodiment of this invention.

Hereinafter, embodiments representative of the present invention will be described with reference to the drawings.
1 to 4 show an embodiment of the present invention.
The reading light 10 according to the present embodiment is a lighting device provided corresponding to the seat 1 for a vehicle and irradiates light. Hereinafter, a case where the reading light 10 is directly provided on the seat 1 for a railway vehicle will be described as an example.

As shown in FIG. 4, the seat 1 is a two-seater stool in which a seat 2 for two people and a backrest 3 are arranged side by side on the left and right sides, and of the two side portions on the upper end side of each backrest 3. A reading light 10 is provided on the side of each seat located on the outside of the seat. Here, the reading light 10 is embedded inside the epidermis with a part thereof exposed to the outside of the epidermis, and is attached to a frame material or the like.

As shown in FIGS. 1 to 3, the reading lamp 10 includes a lamp body 20 including a light source, a case 30 in which the lamp body 20 is housed and can be relatively displaced with respect to the lamp body 20, and the case 30 described above. It has a support 40 that supports the case 30 in a displaceable state with the lamp body 20 fixed. Further, the reading light 10 has a substrate 60 including a control circuit for supplying a current from a power source mounted on the vehicle, and a rotation-operated variable resistor 50 mounted on the substrate 60.

Although the light source is not shown, it is composed of, for example, an LED lamp, and the emission color thereof is a design matter that can be appropriately determined. The number of LED chips mounted on the LED lamp substrate can also be arbitrarily selected. The LED lamp is connected to the substrate 60 via the variable resistor 50. When the operation shaft 51 (see FIG. 1) of the variable resistor 50 is rotated, the resistance value of the variable resistor 50 changes according to a change in the rotation angle based on a predetermined resistance value characteristic. Since the configuration of the variable resistor 50 is general, detailed description thereof will be omitted.

The lamp body 20 is formed in a spherical shape as a whole and has a hollow interior, and is provided with a circular opening 21 (see FIG. 2) on the front surface side. A cylindrical flange 22 having a shallow bottom is projected from the peripheral edge of the opening 21. The above-mentioned light source is arranged inside the opening 21 inside the lamp body 20. The open end of the flange 22 is covered with a circular cover member 23 forming a light emitting surface that irradiates the light of a light source to the outside. The center of the cover member 23 is the center of the optical axis of the light source, and the direction of the optical axis intersects the light emitting surface perpendicularly.

In this way, the surface of the lamp body 20 other than the light emitting surface is formed as a spherical surface, but behind the spherical surface facing the light emitting surface, a pin extending coaxially with the optical axis of the light source (central axis of the lamp body 20). 25 is projected integrally. The lamp body 20 is made of a metal having excellent heat resistance, and the cover member 23 is made of a translucent material.

The case 30 is formed in a cylindrical shape as a whole, and is provided with a storage portion 32 that surrounds the spherical surface of the lamp body 20 and rotatably holds the lamp body 20 on the front end opening side thereof. The case 30 is pivotally supported by a support 40 described later in a state of being rotatable relative to the central axis with respect to the lamp body 20. The front end portion of the case 30 including the front end opening is a separate body 30a to be retrofitted so as to surround the spherical surface of the lamp body 20 from the front. A stepped taper 30b that surrounds the spherical surface of the lamp body 20 from the rear is provided on the inner circumference in front of the case body side to which the separate body 30a is attached.

The front end opening of the separate body 30a is larger than the outer diameter of the flange 22 of the lamp body 20, but smaller than the maximum diameter of the lamp body 20 itself, and the inner diameter at the top of the taper 30b is also smaller than the maximum diameter of the lamp body 20 itself. Therefore, the lamp body 20 is held by the storage portion 32 between the separate body 30a and the taper 30b so as not to come off. Since the separate body 30a is close to a light source, it is formed of a metal or the like having excellent heat resistance, but the case body side may be formed of a synthetic resin or the like in order to reduce the weight.

A part of the case 30 is an operation unit 31 for displacement with respect to the support 40. The "displacement" in this embodiment is the "rotation" around the central axis of the case 30. More specifically, the operation unit 31 is formed as a flange-shaped rotary knob on the front end opening end of the case 30, that is, on the peripheral edge of the front end opening of the separate body 30a.

The operation unit 31 in the present embodiment also serves as a first switch for turning on or off the light source and a second switch for dimming the illuminance when the light source is on. A mark suggesting a rotation direction for turning on or off the light source is marked on the surface of the rotary knob which is the operation unit 31, and the rotary knob is exposed on the outside of the skin of the seat 1. These switches are combined with the variable resistor 50 described above.

That is, the operation shaft 51 of the variable resistor 50 is connected to the case 30 side via a gear mechanism so as to be interlocked with the rotation operation of the operation unit 31. A stepped flange 30c is provided around the rear end opening end of the case 30, and the drive gear 33 is fixed around the flange 30c. On the other hand, a driven gear 52 that rotatably meshes with the drive gear 33 is fixed to the operation shaft 51 of the variable resistor 50. The gear mechanism including these gears 33 and 52 is configured to rotate the operation shaft 51 with the rotation operation of the operation unit 31.

The support 40 constitutes a unit by integrally attaching a case 30 including a lamp 20, a variable resistor 50, and a substrate 60, respectively, and has a front wall 41, a pedestal portion 42, a cylindrical portion 43, and the like. It consists of a rear support piece 44. The front wall 41 forms a reference surface that is substantially vertical to the reading light 10, and is provided with a circular mounting hole 41a through which the cylindrical portion 43 is inserted. The front wall 41 may be processed from a metal plate. The lower part of the front wall 41 is formed as a pedestal portion 42 that is bent rearward at a right angle to become substantially horizontal. A substrate 60 is arranged on the pedestal portion 42 via a boss 42a.

The cylindrical portion 43 is formed in a cylindrical shape having an inner diameter slightly larger than the outer diameter of the case 30. The cylindrical portion 43 is integrally fixed to the front wall 41 in a state where the flange 43a provided at the edge of the front end opening is in contact with the periphery of the mounting hole 41a of the front wall 41. The case 30 is rotatably supported by the cylindrical portion 43 in a state of being inserted. The cylindrical portion 43 may be molded from a synthetic resin.

The rear support piece 44 is erected behind the front wall 41 from the upper end of the front wall 41 to the lower end of the pedestal portion 42. The rear support piece 44 is formed by processing a narrow metal plate into the shape shown in the figure. The middle of the rear support piece 44 is formed as a recess 44a that fits inside from the rear end side opening of the case 30 protruding rearward of the front wall 41, and the inner surface of the recess 44a is behind the spherical surface of the lamp body 20. I'm in contact. That is, the lamp body 20 housed in the storage portion 32 of the case 30 is held from the rear by the recess 44a of the rear support piece 44.

In this way, the lamp body 20 is held so that the center of the cover member (light emitting surface) 23 can rotate in a direction deviating from the central axis of the case 30, and the optical axis direction of the light source can also be adjusted. Here, the lamp body 20 does not rotate together with the case 30 when the case 30 is rotated due to the rotation operation of the operation unit 31, and is non-rotatably supported by the support body 40. More specifically, the recess 44a of the rear support piece 44 in the support 40 is provided with a guide groove 44b in which a pin 25 projecting from the rear of the spherical surface of the lamp body 20 is engaged and guided in a certain direction. ..

As shown in FIG. 3, the guide groove 44b extends in the vertical direction with the central axis of the case 30 in between. Therefore, the lamp body 20 can rotate in the vertical direction deviating from the central axis of the case 30 within the range in which the pin 25 moves in the guide groove 44b, and the optical axis direction of the light source can be adjusted in the vertical direction. There is. Here, the lamp body 20 is supported in a state of being pressed against the inner surface of the recess 44a of the rear support piece 44 by a coil spring (urging means) 27 provided on the pin 25.

More specifically, the pin 25 of the lamp body 20 is inserted into the guide groove 44b of the recess 44a and protrudes rearward, and the protrusion 25a projects from the tip thereof in a direction orthogonal to the axial direction of the pin 25. A coil spring 27 is interposed between the base end of the pin 25 protruding from the guide groove 44b and the protrusion 25a via the front and rear washers 26a and 26b. Due to the elastic force of the coil spring 27 that is about to extend, the rear surface of the spherical surface around the pin 25 of the lamp body 20 is in pressure contact with the inner surface of the recess 44a, and is configured to be able to be held in a state where the optical axis is tilted. ..

Next, the operation of the reading light 10 according to the present embodiment will be described.
According to the present reading light 10, the case 30 accommodating the light body 20 is rotatable with respect to the support 40, and the rotation of the case 30 realizes the switching operation of lighting the light source and dimming. The operation unit 31 for rotating the case 30 uses a part of the case 30 as a rotation knob. As a result, it is not necessary to prepare switch parts separately from the components of the reading light 10, and the case 30 itself also serves as a switch. Therefore, the number of parts and the man-hours for mounting the reading light 10 can be reduced, and the cost can be reduced.

When the operation unit 31 is rotated, the case 30 is rotated as it is, and the driven gear 52 that meshes with the drive gear 33 integrated with the case 30 is also rotated. As a result, the operating shaft 51 of the variable resistor 50 integrated with the driven gear 52 can be rotated. When the operation shaft 51 rotates, the resistance value of the variable resistor 50 changes according to the rotation angle, and the output voltage from the control circuit on the board 60 changes based on this, and the output voltage from the control circuit on the board 60 changes via the transistor or the like in the board 60. The current flowing through the light source is controlled.

When the resistance value of the variable resistor 50 is the maximum value, the light source is turned off, and the rotation angle of the operation unit 31 at the time of turning off is set as the initial position. When the operation unit 31 is rotated from the initial position, for example, clockwise, the resistance value of the variable resistor 50 is set to increase. As a result, by rotating the operation unit 31 in an intuitively easy-to-understand clockwise direction, the light source can be turned on and the illuminance of the light source can be arbitrarily adjusted to the desired brightness of the seated person. Further, as shown in FIG. 2, if a mark suggesting the rotation direction for turning on or off the light source is marked on the surface of the rotation knob which is the operation unit 31, the seated person does not get lost in the operation.

In this way, by using a part of the case 30 (operation unit 31) of the reading light 10 itself as two switches for lighting and dimming the light source, the light source and the switch, and between these and the control circuit 60 can be used. The electrical wiring to be connected is not stretched for a long time, and the shortness to connect the upcoming parts is sufficient. Therefore, the possibility that noise is generated in the electrical wiring can be reduced, and the electrical stability can be improved. Further, according to the above-mentioned gear mechanism that transmits the rotation of the operation unit 31 to the operation shaft 51, it can be configured simply and compactly.

As shown in FIG. 1, the case 30 is rotatably supported by the cylindrical portion 43 of the support 40 around its central axis, where the case 30 is relative to the lamp body 20 in the storage portion 32. It is relatively rotatable. Therefore, even if the lamp body 20 in the storage portion 32 is fixed to the support 40, the case 30 can be freely rotated with respect to the support 40 without being hindered by the lamp body 20. be able to.

The reading light 10 includes a light body 20 including a light source, a case 30, and a substrate 60 including a variable resistor 50 and a control circuit. All of these components are integrally attached to the support 40 as a unit. It is configured. As a result, the reading light 10 can be configured more compactly, and it becomes easy to handle and install it as one component. Further, the seat 1 shown in FIG. 4 has good mountability in a limited space.

Further, the reading light 10 also has a mechanism capable of adjusting the optical axis direction of the light source. That is, the lamp body 20 can be rotated in a direction in which the center of the cover member (light emitting surface) 23 is vertically displaced with the central axis of the case 30 in between, and the optical axis direction of the light source is adjusted in the vertical direction. Can be done. Here, the seated person can easily change the optical axis of the light source so that the light hits a desired position by moving the lamp body 20 by hand.

The lamp body 20 is pressed against the inner surface of the recess 44a of the rear support piece 44 in the support body 40 by a coil spring 27 provided on the pin 25. Due to the frictional resistance due to this pressure contact, the lamp body 20 can be held so as not to move carelessly in a state where the optical axis of the light source is tilted at an arbitrary angle. Further, when the case 30 is rotated by the operation unit 31, the lamp body 20 does not move carelessly together with the case 30. The angle at which the optical axis of the light source can be adjusted is limited to the range in which the pin 25 moves in the guide groove 44b, as shown by an imaginary line in FIG.

Although the embodiments of the present invention have been described above with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention may be changed or added without departing from the gist of the present invention. Included in the invention. For example, the seat 1 in which the reading light 10 is provided is not limited to that for railway vehicles, and may be provided on a ceiling, a side wall, or the like in the vicinity so as to correspond to the seat 1 without being directly provided on the seat 1.

Further, the specific shapes of the lamp body 20, the case 30, the support 40, and the like constituting the reading lamp 10 are not limited to those shown in the illustration. In particular, the mode in which the case 30 is displaced with respect to the support 40 is "rotation" in the present embodiment, but the present invention is not limited to this, and for example, the case 30 slides with respect to the support of the case. You may support it as such.

Further, in the above-described embodiment, the operation unit 31 is configured to serve as both a first switch for turning on or off the light source and a second switch for dimming the illuminance of the light source, but either switch is used. It may be configured to serve only as a light source. In such a case, the other switch will be separately provided in or near the reading light 10 itself.
Further, the direction for adjusting the optical axis direction of the light source is not limited to the vertical direction, and may be configured to be left-right direction or 360-degree all-around direction as needed.

INDUSTRIAL APPLICABILITY The present invention can be widely used as a reading light for seats for vehicles such as railroad vehicles, aircraft, automobiles, and ships.

1 ... Seat 10 ... Reading light 20 ... Light body 21 ... Opening 22 ... Flange 23 ... Cover member (light emitting surface)
25 ... Pin 27 ... Coil spring (urging means)
30 ... Case 31 ... Operation unit (rotating knob)
32 ... Storage part 33 ... Drive gear 40 ... Support 41 ... Front wall 42 ... Pedestal part 43 ... Cylindrical part 44 ... Rear support piece 44a ... Recessed portion 44b ... Guide groove 50 ... Variable resistor 51 ... Operation shaft 60 ... Board (control) circuit)

Claims (5)

In a reading light that is provided corresponding to a seat for a vehicle and illuminates light
A lamp body including a light source, a case that can be displaced relative to the lamp body in a state where the lamp body is housed, and a support that supports the case in a displaceable state with the lamp body fixed. Have and
In the lamp body, a surface other than the light emitting surface that irradiates the light of the light source to the outside is formed as a spherical surface.
A part of the case is formed in a cylindrical shape, and has a storage portion that surrounds the spherical surface of the lamp body and rotatably holds the lamp body on the front end opening side thereof, and has a central axis with respect to the lamp body. It is pivotally supported by the support so as to be relatively rotatable around it, and serves as an operating unit for displacement with respect to the support.
The operation unit is formed as a flange-shaped rotary knob around the front end opening end of the case, and is a first switch for turning on or off the light source, and / or dimming the illuminance when the light source is on. It doubles as a switch for 2
It has one variable resistor that constitutes the first switch and the second switch.
A reading light characterized in that the operation shaft of the variable resistor is connected to the case side via a gear mechanism so as to be interlocked with the operation of the rotary knob . The gear mechanism is characterized by including a drive gear provided around the rear end open end of the case and a driven gear provided on the operation shaft of the variable resistor and rotatably meshing with the drive gear. The reading light according to claim 1 . It has a control circuit connected to the light source and the variable resistor.
The reading lamp according to claim 1 or 2 , wherein the variable resistor and the control circuit are integrally attached to the support and configured as a unit, respectively. In the lamp body, the optical axis direction of the light source can be adjusted as the center of the light emitting surface deviates from the central axis of the case, and the support cannot rotate when the case rotates. The reading light according to claim 1 , 2 or 3 , characterized in that it has been endorsed. A pin is projected from the rear of the spherical surface facing the light emitting surface of the lamp body, and a guide groove is provided on the support body to which the rear surface of the spherical surface of the lamp body is in contact with the pin to be engaged and guided in a certain direction. , The optical axis direction of the light source can be adjusted within the range in which the pin moves in the guide groove.
The reading lamp according to claim 4 , wherein the light body is supported in a state of being pressed against the support by an urging means provided on the pin.

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