WO2013014888A1 - Vehicle interior lamp with a rotatably supported light source - Google Patents

Vehicle interior lamp with a rotatably supported light source Download PDF

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Publication number
WO2013014888A1
WO2013014888A1 PCT/JP2012/004595 JP2012004595W WO2013014888A1 WO 2013014888 A1 WO2013014888 A1 WO 2013014888A1 JP 2012004595 W JP2012004595 W JP 2012004595W WO 2013014888 A1 WO2013014888 A1 WO 2013014888A1
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WO
WIPO (PCT)
Prior art keywords
support shaft
shaft portion
side member
rotary
circular hole
Prior art date
Application number
PCT/JP2012/004595
Other languages
French (fr)
Inventor
Shinji Mochizuki
Original Assignee
Yazaki Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yazaki Corporation filed Critical Yazaki Corporation
Publication of WO2013014888A1 publication Critical patent/WO2013014888A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/70—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose
    • B60Q3/76—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose for spotlighting, e.g. reading lamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/80—Circuits; Control arrangements
    • B60Q3/85—Circuits; Control arrangements for manual control of the light, e.g. of colour, orientation or intensity

Definitions

  • the present invention relates to an illumination lamp capable of varying irradiation directions.
  • an illumination lamp for irradiating an interior of a vehicle is provided for the vehicle.
  • a conventional interior illumination lamp of this type there is provided one that is disclosed in Patent Literature 1.
  • an interior illumination lamp 100 is provided with a housing 101 fixed to a roof lining of the vehicle interior, a support ring 130 rotatably supported on the housing 101 by a first rotary support shaft portion 110, a bezel 140 rotatably supported on the support ring 130 by a second rotary support shaft portion 120 intersecting with the first rotary support shaft portion 110, a light irradiating portion 150 fixed to a central position of the bezel 140 and having a light source 151, and a rotary switch member 160 disposed at an outer periphery of the bezel 140 and rotatably supported on the housing 101.
  • the housing 101 includes a first housing portion 101A in a form of a frame body and a second housing portion 101B assembled to the first housing portion 101A.
  • the first rotary support shaft portion 110 includes a pair of shaft portions 111 respectively protrudingly disposed at a pair of support arms 101a of the second housing portion 101B and arranged along a first axis C1, a pair of bearing holes 112 into which the respective shaft portions 111 are inserted, and a first shim 113 intervened between one of the shaft portions 111 and one of the shaft bearing holes 112.
  • the second rotary support shaft portion 120 includes a pair of bearing holes 121 each provided at the support ring 130 and arranged along a second axis C2, a pair of shaft portions 122 protrudingly provided at the bezel 140 and inserted into the respective bearing holes 121, and a second shim 123 intervened between one of the shaft portions 122 and one of the shaft bearing holes 121.
  • the direction of the light source 151 can be varied in the two axial directions, thereby making it possible to arbitrarily vary the irradiation directions.
  • an object of the present invention to provide an illumination lamp capable of easily changing from manual to electric the types of changing an irradiation direction.
  • An illumination lamp includes: a fixture side member; and a rotation side member rotatably supported on the fixture side member by a rotary support shaft portion and to which a light source is fixed, wherein the rotary support shaft portion includes: a circular hole provided at one of the fixture side member and the rotation side member, a columnar protruding portion provided at the other of the fixture side member and the rotation side member and inserted into the circular hole, and a rotary force transmitting pin press-fitted into a pin inserting hole of the columnar protruding portion, and press-fitting of the rotary force transmitting pin enlarges a diameter of the columnar protruding portion, thereby crimping an outer peripheral face of the columnar protruding portion to an inner peripheral face of the circular hole.
  • the illumination lamp further includes: a housing fixed to a mounted member, a support ring rotatably supported on the housing by a first rotary support shaft portion, and a bezel rotatably supported on the support ring by a second rotary support shaft portion intersecting with the first rotary support shaft portion, and to which the light source is fixed, and that the circular hole is provided at one of the housing serving as the fixture side member in a rotation by the first rotary support shaft portion and the support ring serving as the rotation side member in the rotation by the first rotary support shaft portion, and the columnar protruding portion to be inserted into the circular hole is provided at the other of the housing and the support ring.
  • the circular hole is provided at one of the support ring serving as the fixture side member in a rotation by the second rotary support shaft portion and the bezel serving as the rotation side member in the rotation by the second rotary support shaft portion, and the columnar protruding portion to be inserted into the circular hole is provided at the other of the support ring and the bezel.
  • the rotary force transmitting pin has a gear portion.
  • one of the rotary force transmitting pin and the pin inserting hole is provided with a key protrusion and the other of the rotary force transmitting pin and the pin inserting hole is provided with a key groove.
  • the rotation side member and a light source rotate around a rotary support shaft portion, and a frictional resistance between a columnar protruding portion and a circular hole maintains the rotation side member and light source in an arbitrary rotation stop position.
  • rotation of the rotary force transmitting pin can also rotate the rotation side member and light source around the rotary support shaft portion, and the frictional resistance between the columnar protruding portion and the circular hole maintains the rotation side member and light source in the arbitrary rotation stop position.
  • to change the irradiation direction can be easily made from manual to electric.
  • Fig. 1 is an exploded perspective view of a conventional interior illumination lamp.
  • Fig. 2 is a cross sectional view of the conventional interior illumination lamp with a first axis as a cutting face.
  • Fig. 3 is a cross sectional view of the conventional interior illumination lamp with a second axis as a cutting face.
  • Fig. 4A is a perspective view of an interior illumination lamp according to an embodiment of the present invention viewed from a surface side.
  • Fig. 4B is a perspective view of essential parts of the interior illumination lamp according to the embodiment of the present invention, in a state where the irradiation direction is changed from that shown in Fig. 4A.
  • Fig. 5 is a perspective view of the interior illumination lamp according to the embodiment of the present invention viewed from a back side.
  • Fig. 6 is an exploded perspective view of the interior illumination lamp according to the embodiment of the present invention viewed from the back side.
  • Fig. 7 is an exploded perspective view of main components of the interior illumination lamp according to the embodiment of the present invention viewed from the back side.
  • Fig. 8 is an enlarged view of the essential parts, with a part of Fig. 5 being cut away.
  • Fig. 9A is a cross sectional view of the interior illumination lamp according to the embodiment of the present invention, with a first axis as a cutting face.
  • Fig. 9B is an enlarged view of part A of Fig. 9A.
  • Fig. 10 is an exploded perspective view of essential parts of a first rotary support shaft portion according to the embodiment of the present invention.
  • Fig. 10 is an exploded perspective view of essential parts of a first rotary support shaft portion according to the embodiment of the present invention.
  • FIG. 11 is a cross sectional view of the interior illumination lamp according to the embodiment of the present invention, with a second axis as a cutting face.
  • Fig. 12 is an exploded perspective view of essential parts of a second rotary support shaft portion according to the embodiment of the present invention.
  • Fig. 13 is a cross sectional view of the interior illumination lamp according to the embodiment of the present invention, for explaining setting of an actuator.
  • FIG. 4A to Fig. 13 illustrate the embodiment of the present invention.
  • an interior illumination lamp 1 as an illumination lamp is installed at a mounted member in a vehicle interior, for example, a roof lining (not shown).
  • the interior illumination lamp 1 is provided with a housing 2, a support ring 30 rotatably supported on the housing 2 by a first rotary support shaft portion 10 around a first axis C1, a bezel 40 rotatably supported on the support ring 30 by a second rotary support shaft portion 20 around a second axis C2, a lock member 50 disposed in the center of the bezel 40, and an LED element 51 as a light source fixed to the lock member 50.
  • the first axis C1 of the first rotary support shaft portion 10 and the second axis C2 of the second rotary support shaft portion 20 have directions perpendicular to each other.
  • the housing 2 serves as a fixture side member and the support ring 30 and bezel 40 each serve as a rotation side member.
  • the housing 2 and support ring 30 each serve as a fixture side member and the bezel 40 serves as a rotation side member.
  • the support ring 30 serves as the rotation side member around the first axis C1 and serves as the fixture side member around the second axis C2.
  • the housing 2 includes a first housing portion 2A in a form of a frame body and a second housing portion 2B assembled in the frame of the first housing portion 2A.
  • the first housing portion 2A and second housing portion 2B are fixed to each other by mutually locking respective lock portions 3.
  • Lock nails 4 (shown in Fig. 6) are additionally provided at the second housing portion 2B at a plurality of locations.
  • the interior illumination lamp 1 is fixed by sandwiching the roof lining (not shown) as the mounted member with the lock nails 4 and a peripheral edge portion of the first housing portion 2A.
  • the second housing portion 2B includes a control parts receiver 5 and an irradiation opening portion 6.
  • the control parts receiver 5 receives a display emitting LED 7a, a control substrate 7b, a male tab terminal 7c, two press-down type switches 8 and the like.
  • Each of the switches 8 is operated via one of operation portions 9.
  • Each of the operation portions 9 is made of a light-transmissive material and is fitted to the second housing portion 2B in such a configuration as to cover a surface side of the control parts receiver 5. In opposing positions of a peripheral edge of the irradiation opening portion 6, a pair of support arms 2a are so disposed as to protrude inward.
  • the support ring 30 is formed of a flat band body having a constant width.
  • the bezel 40 has an outer frame 41 in a form of a hemispherical face and an inner frame 42 in a form of a circular cone which is bent back from an inner peripheral side of the outer frame 41.
  • the support ring 30 is disposed between the outer frame 41 and inner frame 42 of the bezel 40.
  • Mating the lock member 50 into the inner frame 42 of the bezel 40 fixes the lock member 50 to the bezel 40.
  • the lock member 50 has a pair of lock arms 50a.
  • the pair of lock arms 50a are so made as to protrude more inward than the inner frame 42 of the bezel 40.
  • the LED element 51 is locked to the pair of lock arms 50a in a position inward of the inner frame 42 of the bezel 40. That is, the LED element 51 is fixed to the bezel 40 via the lock member 50.
  • the first rotary support shaft portion 10 includes two support shaft portions, that is, a first support shaft portion 10A and a second support shaft portion 10B which are disposed in respective two locations on the first axis C1.
  • the first support shaft portion 10A includes a columnar protruding portion 11 provided at one of the support arms 2a of the second housing portion 2B and a circular hole 12 which is provided at the support ring 30 and into which the columnar protruding portion 11 is inserted.
  • the columnar protruding portion 11 and the circular hole 12 each are set to have such a dimension as to prevent a backlash and secure a smooth rotation.
  • the second support shaft portion 10B includes a circular hole 13 provided at the second housing portion 2B, a columnar protruding portion 14 provided at the support ring 30 and inserted into the circular hole 13, and a gear pin 16 as a rotary force transmitting pin press-fitted into a gear pin inserting hole 15 as a pin inserting hole of the columnar protruding portion 14.
  • the gear pin inserting hole 15 is formed in an axial center of the columnar protruding portion 14. Press-fitting the gear pin 16 into the gear pin inserting hole 15 enlarges the diameter of the columnar protruding portion 14, thereby crimping (pressure contacting) an outer peripheral face of the columnar protruding portion 14 to an inner peripheral face of the circular hole 13. Rotating the columnar protruding portion 14 in the circular hole 13 causes a predetermined frictional force (sliding resistance).
  • a key groove 15a is provided at the gear pin inserting hole 15.
  • the gear pin 16 has a press-fit rod portion 17 and a gear portion 18.
  • the press-fit rod portion 17 is provided with a key protrusion 17a.
  • the second rotary support shaft portion 20 includes two support shaft portions, that is, a first support shaft portion 20A and a second support shaft portion 20B which are disposed at respective two locations on the second axis C2.
  • the first support shaft portion 20A includes a columnar protruding portion 21 provided at the support ring 30 and a circular hole 22 which is provided at the bezel 40 and into which the columnar protruding portion 21 is inserted.
  • the columnar protruding portion 21 and the circular hole 22 each are set to have such a dimension as to prevent a backlash and secure a smooth rotation.
  • the second support shaft portion 20B includes a circular hole 23 provided at the support ring 30, a columnar protruding portion 24 provided at the bezel 40 and inserted into the circular hole 23, and a gear pin 26 as a rotary force transmitting pin press-fitted into a gear pin inserting hole 25 as a pin inserting hole of the columnar protruding portion 24.
  • the gear pin inserting hole 25 is formed in an axial center of the columnar protruding portion 24. Press-fitting the gear pin 26 into the gear pin inserting hole 25 enlarges the diameter of the columnar protruding portion 24, thereby crimping (pressure contacting) an outer peripheral face of the columnar protruding portion 24 to an inner peripheral face of the circular hole 23. Rotating the columnar protruding portion 24 in the circular hole 23 causes a predetermined frictional force (sliding resistance).
  • a key groove 25a is provided at the gear pin inserting hole 25.
  • the gear pin 26 has a press-fit rod portion 27 and a gear portion 28.
  • the press-fit rod portion 27 is provided with a key protrusion 27a.
  • the direction of the LED element 51 as a light source can be arbitrarily varied together with the bezel 40 around two axial directions, that is, on the first axis C1 and the second axis C2.
  • the direction in Fig. 4A can be varied to the direction in Fig. 4B.
  • the first and second rotary support shaft portions 10, 20 include the circular holes 13, 23 respectively provided at the second housing portion 2B and the support ring 30 each serving as the fixture side member, and the columnar protruding portions 14, 24 respectively provided at the support ring 30 and bezel 40 each serving as the rotation side member and respectively inserted into the circular holes 13, 23, and the gear pins 16, 26 respectively press-fitted into the gear pin inserting holes 15, 25 of the respective columnar protruding portions 14, 24 and enlarging the respective columnar protruding portions 14, 24 thereby crimping (pressure contacting) the outer peripheral faces of the respective columnar protruding portions 14, 24 to the inner peripheral faces of the respective circular holes 13, 23.
  • the rotation side member (support ring 30 and bezel 40, or bezel 40) and the LED element 51 are rotated around the first or second rotary support shaft portion 10 or 20, and the frictional resistance between the columnar protruding portion 14 or 24 and the circular hole 13 or 23 maintains the rotation side member (support ring 30 and bezel 40, or bezel 40) and LED element 51 in the arbitrary rotation stop position. In this way, the irradiation direction can be changed manually.
  • rotation of the gear pin 16 or 26 per se can rotates the rotation side member (support ring 30 and bezel 40, or bezel 40) and the LED element 51 around the first or second rotary support shaft portion 10 or 20, and the frictional resistance between the columnar protruding portion 14 or 24 and the circular hole 13 or 23 maintains the rotation side member (support ring 30 and bezel 40, or bezel 40) and LED element 41 in the arbitrary rotation stop position.
  • setting an actuator 60 at the housing 2 such that a rotary output acts on the gear pin 16 can make the first rotary support shaft portion 10 electric.
  • the actuator 60 includes, for example, a motor 61 and a deceleration gear 62. Further, with respect to the second rotary support shaft portion 20, setting an actuator (not shown) at the support ring 30 such that a rotary output acts on the gear pin 26 can make the second rotary support shaft portion 20 electric. As described above, the irradiation direction changing type can be easily changed from manual to electric.
  • the rotary force transmitting pins include the gear pins 16, 26 respectively having the gear portions 18, 28. Thus, meshing of the gears can assure transmitting the rotary force from the actuators 60, (not shown) to the gear pins 16, 26.
  • the rotary force transmitting pin may include a pin having a frictional wheel, a pulley or the like.
  • the gear pins 16, 26 are respectively provided with the key protrusions 17a, 27a and the gear pin inserting holes 15, 25 are respectively provided with the key grooves 15a, 25a.
  • key grooves may be provided at the gear pins 16, 26 and key protrusions may be provided at the gear pin inserting holes 15, 25.
  • the second support shaft portion 10B of the first rotary support shaft portion 10 has such a structure that the circular hole 13 is provided at the second housing portion 2B and the columnar protruding portion 14 is provided at the support ring 30; however, the columnar protruding portion 14 may be provided at the second housing portion 2B and the circular hole 13 may be provided at the support ring 30.
  • the second support shaft portion 20B of the second rotary support shaft portion 20 has such a structure that the circular hole 23 is provided at the support ring 30 and the columnar protruding portion 24 is provided at the bezel 40; however, the columnar protruding portion 24 may be provided at the support ring 30 and the circular hole 23 may be provided at the bezel 40.
  • the LED element 51 can rotate around two axes, that is, the first rotary support shaft portion 10 and the second rotary support shaft portion 20; however, it can be so made that the rotation is accomplished only on one axis.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)

Abstract

An illumination lamp includes a housing (2), a support ring (30) rotatably supported on the housing by a first rotary support shaft portion (10), and a bezel (40) rotatably supported on the support ring by a second rotary support shaft portion (20) intersecting with the first rotary support shaft portion (10) and to which an LED element (51) is fixed. The first rotary support shaft portion includes a circular hole (13) provided at the housing, a columnar protruding portion (14) provided at the support ring, and a gear pin (16) press-fitted into a gear pin inserting hole (15) of the columnar protruding portion. Press-fitting of the gear pin enlarges a diameter of the columnar protruding portion, thereby crimping an outer peripheral face of the columnar protruding portion to an inner peripheral face of the circular hole.

Description

[Title established by the ISA under Rule 37.2] VEHICLE INTERIOR LAMP WITH A ROTATABLY SUPPORTED LIGHT SOURCE
The present invention relates to an illumination lamp capable of varying irradiation directions.
For example, an illumination lamp for irradiating an interior of a vehicle is provided for the vehicle. As a conventional interior illumination lamp of this type, there is provided one that is disclosed in Patent Literature 1. As shown in Fig. 1 to Fig. 3, an interior illumination lamp 100 is provided with a housing 101 fixed to a roof lining of the vehicle interior, a support ring 130 rotatably supported on the housing 101 by a first rotary support shaft portion 110, a bezel 140 rotatably supported on the support ring 130 by a second rotary support shaft portion 120 intersecting with the first rotary support shaft portion 110, a light irradiating portion 150 fixed to a central position of the bezel 140 and having a light source 151, and a rotary switch member 160 disposed at an outer periphery of the bezel 140 and rotatably supported on the housing 101. The housing 101 includes a first housing portion 101A in a form of a frame body and a second housing portion 101B assembled to the first housing portion 101A.
As shown in detail in Fig. 2, the first rotary support shaft portion 110 includes a pair of shaft portions 111 respectively protrudingly disposed at a pair of support arms 101a of the second housing portion 101B and arranged along a first axis C1, a pair of bearing holes 112 into which the respective shaft portions 111 are inserted, and a first shim 113 intervened between one of the shaft portions 111 and one of the shaft bearing holes 112.
As shown in detail in Fig. 3, the second rotary support shaft portion 120 includes a pair of bearing holes 121 each provided at the support ring 130 and arranged along a second axis C2, a pair of shaft portions 122 protrudingly provided at the bezel 140 and inserted into the respective bearing holes 121, and a second shim 123 intervened between one of the shaft portions 122 and one of the shaft bearing holes 121.
In the above structure, when a rotary force around the first axis C1 is applied by a user to the bezel 140, a first integration of the bezel 140, the support ring 130, and the light irradiating portion 150 integrally rotates around the first rotary support shaft portion 110. When a rotary force around the second axis C2 is applied by the user to the bezel 140, a second integration of the bezel 140 and the light irradiating portion 150 integrally rotates around the second rotary support shaft portion 120. And at an arbitrary rotation stop position, a frictional resistance of the first shim 113 can maintain the first integration in the same position and a frictional resistance of the second shim 123 can maintain the second integration in the same position.
In this way, the direction of the light source 151 can be varied in the two axial directions, thereby making it possible to arbitrarily vary the irradiation directions.
Japanese Patent Application Laid-Open Publication No. 2009-83794
However, in the conventional interior illumination lamp 100, no attention is paid to changing from manual to electric the types of changing an irradiation direction. Thus, making a design change to electrically changing the irradiation direction requires a significant structural change.
In order to solve the above problem, it is an object of the present invention to provide an illumination lamp capable of easily changing from manual to electric the types of changing an irradiation direction.
An illumination lamp according to an aspect of the present invention includes: a fixture side member; and a rotation side member rotatably supported on the fixture side member by a rotary support shaft portion and to which a light source is fixed, wherein the rotary support shaft portion includes: a circular hole provided at one of the fixture side member and the rotation side member, a columnar protruding portion provided at the other of the fixture side member and the rotation side member and inserted into the circular hole, and a rotary force transmitting pin press-fitted into a pin inserting hole of the columnar protruding portion, and press-fitting of the rotary force transmitting pin enlarges a diameter of the columnar protruding portion, thereby crimping an outer peripheral face of the columnar protruding portion to an inner peripheral face of the circular hole.
It is preferable that the illumination lamp further includes: a housing fixed to a mounted member, a support ring rotatably supported on the housing by a first rotary support shaft portion, and a bezel rotatably supported on the support ring by a second rotary support shaft portion intersecting with the first rotary support shaft portion, and to which the light source is fixed, and that the circular hole is provided at one of the housing serving as the fixture side member in a rotation by the first rotary support shaft portion and the support ring serving as the rotation side member in the rotation by the first rotary support shaft portion, and the columnar protruding portion to be inserted into the circular hole is provided at the other of the housing and the support ring.
It is preferable that the circular hole is provided at one of the support ring serving as the fixture side member in a rotation by the second rotary support shaft portion and the bezel serving as the rotation side member in the rotation by the second rotary support shaft portion, and the columnar protruding portion to be inserted into the circular hole is provided at the other of the support ring and the bezel.
It is preferable that the rotary force transmitting pin has a gear portion.
It is preferable that one of the rotary force transmitting pin and the pin inserting hole is provided with a key protrusion and the other of the rotary force transmitting pin and the pin inserting hole is provided with a key groove.
According to the present invention, when a rotary force around an axis is applied by a user to a rotation side member, the rotation side member and a light source rotate around a rotary support shaft portion, and a frictional resistance between a columnar protruding portion and a circular hole maintains the rotation side member and light source in an arbitrary rotation stop position. In this way, an irradiation direction can be manually changed. Further, rotation of the rotary force transmitting pin can also rotate the rotation side member and light source around the rotary support shaft portion, and the frictional resistance between the columnar protruding portion and the circular hole maintains the rotation side member and light source in the arbitrary rotation stop position. Thus, it is possible to make the rotary support shaft portion electric by additionally providing an actuator that makes a rotary force act on the rotary force transmitting pin. Thus, to change the irradiation direction can be easily made from manual to electric.
Fig. 1 is an exploded perspective view of a conventional interior illumination lamp. Fig. 2 is a cross sectional view of the conventional interior illumination lamp with a first axis as a cutting face. Fig. 3 is a cross sectional view of the conventional interior illumination lamp with a second axis as a cutting face. Fig. 4A is a perspective view of an interior illumination lamp according to an embodiment of the present invention viewed from a surface side. Fig. 4B is a perspective view of essential parts of the interior illumination lamp according to the embodiment of the present invention, in a state where the irradiation direction is changed from that shown in Fig. 4A. Fig. 5 is a perspective view of the interior illumination lamp according to the embodiment of the present invention viewed from a back side. Fig. 6 is an exploded perspective view of the interior illumination lamp according to the embodiment of the present invention viewed from the back side. Fig. 7 is an exploded perspective view of main components of the interior illumination lamp according to the embodiment of the present invention viewed from the back side. Fig. 8 is an enlarged view of the essential parts, with a part of Fig. 5 being cut away. Fig. 9A is a cross sectional view of the interior illumination lamp according to the embodiment of the present invention, with a first axis as a cutting face. Fig. 9B is an enlarged view of part A of Fig. 9A. Fig. 10 is an exploded perspective view of essential parts of a first rotary support shaft portion according to the embodiment of the present invention. Fig. 11 is a cross sectional view of the interior illumination lamp according to the embodiment of the present invention, with a second axis as a cutting face. Fig. 12 is an exploded perspective view of essential parts of a second rotary support shaft portion according to the embodiment of the present invention. Fig. 13 is a cross sectional view of the interior illumination lamp according to the embodiment of the present invention, for explaining setting of an actuator.
An embodiment of the present invention will be described below by referring to the drawings.
(Embodiment)
Fig. 4A to Fig. 13 illustrate the embodiment of the present invention. As shown in Fig. 4A to Fig. 7, Fig. 9A and Fig. 11, an interior illumination lamp 1 as an illumination lamp is installed at a mounted member in a vehicle interior, for example, a roof lining (not shown). The interior illumination lamp 1 is provided with a housing 2, a support ring 30 rotatably supported on the housing 2 by a first rotary support shaft portion 10 around a first axis C1, a bezel 40 rotatably supported on the support ring 30 by a second rotary support shaft portion 20 around a second axis C2, a lock member 50 disposed in the center of the bezel 40, and an LED element 51 as a light source fixed to the lock member 50.
The first axis C1 of the first rotary support shaft portion 10 and the second axis C2 of the second rotary support shaft portion 20 have directions perpendicular to each other. In the rotation around the first axis C1 by the first rotary support shaft portion 10, the housing 2 serves as a fixture side member and the support ring 30 and bezel 40 each serve as a rotation side member. In the rotation around the second axis C2 by the second rotary support shaft portion 20, the housing 2 and support ring 30 each serve as a fixture side member and the bezel 40 serves as a rotation side member. Thus, the support ring 30 serves as the rotation side member around the first axis C1 and serves as the fixture side member around the second axis C2.
The housing 2 includes a first housing portion 2A in a form of a frame body and a second housing portion 2B assembled in the frame of the first housing portion 2A. The first housing portion 2A and second housing portion 2B are fixed to each other by mutually locking respective lock portions 3. Lock nails 4 (shown in Fig. 6) are additionally provided at the second housing portion 2B at a plurality of locations. The interior illumination lamp 1 is fixed by sandwiching the roof lining (not shown) as the mounted member with the lock nails 4 and a peripheral edge portion of the first housing portion 2A.
The second housing portion 2B includes a control parts receiver 5 and an irradiation opening portion 6. The control parts receiver 5 receives a display emitting LED 7a, a control substrate 7b, a male tab terminal 7c, two press-down type switches 8 and the like. Each of the switches 8 is operated via one of operation portions 9. Each of the operation portions 9 is made of a light-transmissive material and is fitted to the second housing portion 2B in such a configuration as to cover a surface side of the control parts receiver 5. In opposing positions of a peripheral edge of the irradiation opening portion 6, a pair of support arms 2a are so disposed as to protrude inward.
The support ring 30 is formed of a flat band body having a constant width. The bezel 40 has an outer frame 41 in a form of a hemispherical face and an inner frame 42 in a form of a circular cone which is bent back from an inner peripheral side of the outer frame 41. The support ring 30 is disposed between the outer frame 41 and inner frame 42 of the bezel 40. Mating the lock member 50 into the inner frame 42 of the bezel 40 fixes the lock member 50 to the bezel 40. The lock member 50 has a pair of lock arms 50a. The pair of lock arms 50a are so made as to protrude more inward than the inner frame 42 of the bezel 40. The LED element 51 is locked to the pair of lock arms 50a in a position inward of the inner frame 42 of the bezel 40. That is, the LED element 51 is fixed to the bezel 40 via the lock member 50.
As shown in detail in Fig. 8 to Fig. 10, the first rotary support shaft portion 10 includes two support shaft portions, that is, a first support shaft portion 10A and a second support shaft portion 10B which are disposed in respective two locations on the first axis C1. The first support shaft portion 10A includes a columnar protruding portion 11 provided at one of the support arms 2a of the second housing portion 2B and a circular hole 12 which is provided at the support ring 30 and into which the columnar protruding portion 11 is inserted. The columnar protruding portion 11 and the circular hole 12 each are set to have such a dimension as to prevent a backlash and secure a smooth rotation.
The second support shaft portion 10B includes a circular hole 13 provided at the second housing portion 2B, a columnar protruding portion 14 provided at the support ring 30 and inserted into the circular hole 13, and a gear pin 16 as a rotary force transmitting pin press-fitted into a gear pin inserting hole 15 as a pin inserting hole of the columnar protruding portion 14. The gear pin inserting hole 15 is formed in an axial center of the columnar protruding portion 14. Press-fitting the gear pin 16 into the gear pin inserting hole 15 enlarges the diameter of the columnar protruding portion 14, thereby crimping (pressure contacting) an outer peripheral face of the columnar protruding portion 14 to an inner peripheral face of the circular hole 13. Rotating the columnar protruding portion 14 in the circular hole 13 causes a predetermined frictional force (sliding resistance).
A key groove 15a is provided at the gear pin inserting hole 15. The gear pin 16 has a press-fit rod portion 17 and a gear portion 18. The press-fit rod portion 17 is provided with a key protrusion 17a.
As shown in detail in Fig. 8, Fig. 11 and Fig. 12, the second rotary support shaft portion 20 includes two support shaft portions, that is, a first support shaft portion 20A and a second support shaft portion 20B which are disposed at respective two locations on the second axis C2. The first support shaft portion 20A includes a columnar protruding portion 21 provided at the support ring 30 and a circular hole 22 which is provided at the bezel 40 and into which the columnar protruding portion 21 is inserted. The columnar protruding portion 21 and the circular hole 22 each are set to have such a dimension as to prevent a backlash and secure a smooth rotation.
The second support shaft portion 20B includes a circular hole 23 provided at the support ring 30, a columnar protruding portion 24 provided at the bezel 40 and inserted into the circular hole 23, and a gear pin 26 as a rotary force transmitting pin press-fitted into a gear pin inserting hole 25 as a pin inserting hole of the columnar protruding portion 24. The gear pin inserting hole 25 is formed in an axial center of the columnar protruding portion 24. Press-fitting the gear pin 26 into the gear pin inserting hole 25 enlarges the diameter of the columnar protruding portion 24, thereby crimping (pressure contacting) an outer peripheral face of the columnar protruding portion 24 to an inner peripheral face of the circular hole 23. Rotating the columnar protruding portion 24 in the circular hole 23 causes a predetermined frictional force (sliding resistance).
A key groove 25a is provided at the gear pin inserting hole 25. The gear pin 26 has a press-fit rod portion 27 and a gear portion 28. The press-fit rod portion 27 is provided with a key protrusion 27a.
In the above structure, when a rotary force around the first axis C1 is applied by a user to the bezel 40 against the frictional resistance between the circular hole 13 of the second housing portion 2B and the columnar protruding portion 14 of the support ring 30, an integration of the bezel 40, the support ring 30 and the LED element 51 integrally rotates around the first rotary support shaft portion 10. Then, the frictional resistance between the circular hole 13 of the second housing portion 2B and the columnar protruding portion 14 of the support ring 30 stops the integration at an arbitrary rotation stop position and maintains the integration in the arbitrary rotation stop position.
In addition, when a rotary force around the second axis C2 is applied by the user to the bezel 40 against the frictional resistance between the circular hole 23 of the support ring 30 and the columnar protruding portion 24 of the bezel 40, an integration of the bezel 40 and the LED element 51 integrally rotates around the second rotary support shaft portion 20. Then, the frictional resistance between the circular hole 23 of the support ring 30 and the columnar protruding portion 24 of the bezel 40 stops the integration at an arbitrary rotation stop position and maintains the integration in the arbitrary rotation stop position.
In the above manner, the direction of the LED element 51 as a light source can be arbitrarily varied together with the bezel 40 around two axial directions, that is, on the first axis C1 and the second axis C2. For example, the direction in Fig. 4A can be varied to the direction in Fig. 4B.
As set forth above, the first and second rotary support shaft portions 10, 20 include the circular holes 13, 23 respectively provided at the second housing portion 2B and the support ring 30 each serving as the fixture side member, and the columnar protruding portions 14, 24 respectively provided at the support ring 30 and bezel 40 each serving as the rotation side member and respectively inserted into the circular holes 13, 23, and the gear pins 16, 26 respectively press-fitted into the gear pin inserting holes 15, 25 of the respective columnar protruding portions 14, 24 and enlarging the respective columnar protruding portions 14, 24 thereby crimping (pressure contacting) the outer peripheral faces of the respective columnar protruding portions 14, 24 to the inner peripheral faces of the respective circular holes 13, 23. Thus, as described above, when the rotary force around the axis is applied by the user to the rotation side member (support ring 30 and bezel 40, or bezel 40), the rotation side member (support ring 30 and bezel 40, or bezel 40) and the LED element 51 are rotated around the first or second rotary support shaft portion 10 or 20, and the frictional resistance between the columnar protruding portion 14 or 24 and the circular hole 13 or 23 maintains the rotation side member (support ring 30 and bezel 40, or bezel 40) and LED element 51 in the arbitrary rotation stop position. In this way, the irradiation direction can be changed manually. In addition, rotation of the gear pin 16 or 26 per se can rotates the rotation side member (support ring 30 and bezel 40, or bezel 40) and the LED element 51 around the first or second rotary support shaft portion 10 or 20, and the frictional resistance between the columnar protruding portion 14 or 24 and the circular hole 13 or 23 maintains the rotation side member (support ring 30 and bezel 40, or bezel 40) and LED element 41 in the arbitrary rotation stop position. Thus, with respect to the first rotary support shaft portion 10, as depicted by a phantom line in Fig. 13, setting an actuator 60 at the housing 2 such that a rotary output acts on the gear pin 16 can make the first rotary support shaft portion 10 electric. The actuator 60 includes, for example, a motor 61 and a deceleration gear 62. Further, with respect to the second rotary support shaft portion 20, setting an actuator (not shown) at the support ring 30 such that a rotary output acts on the gear pin 26 can make the second rotary support shaft portion 20 electric. As described above, the irradiation direction changing type can be easily changed from manual to electric.
The rotary force transmitting pins include the gear pins 16, 26 respectively having the gear portions 18, 28. Thus, meshing of the gears can assure transmitting the rotary force from the actuators 60, (not shown) to the gear pins 16, 26. The rotary force transmitting pin may include a pin having a frictional wheel, a pulley or the like.
The gear pins 16, 26 are respectively provided with the key protrusions 17a, 27a and the gear pin inserting holes 15, 25 are respectively provided with the key grooves 15a, 25a. Thus, spinning-around of the gear pins can be assuredly prevented. Otherwise, key grooves may be provided at the gear pins 16, 26 and key protrusions may be provided at the gear pin inserting holes 15, 25.
(Modified example)
According to the embodiment described above, the second support shaft portion 10B of the first rotary support shaft portion 10 has such a structure that the circular hole 13 is provided at the second housing portion 2B and the columnar protruding portion 14 is provided at the support ring 30; however, the columnar protruding portion 14 may be provided at the second housing portion 2B and the circular hole 13 may be provided at the support ring 30.
According to the embodiment described above, the second support shaft portion 20B of the second rotary support shaft portion 20 has such a structure that the circular hole 23 is provided at the support ring 30 and the columnar protruding portion 24 is provided at the bezel 40; however, the columnar protruding portion 24 may be provided at the support ring 30 and the circular hole 23 may be provided at the bezel 40.
According to the embodiment described above, the LED element 51 can rotate around two axes, that is, the first rotary support shaft portion 10 and the second rotary support shaft portion 20; however, it can be so made that the rotation is accomplished only on one axis.
1 interior illumination lamp (illumination lamp)
2 housing (fixture side member)
10 first rotary support shaft portion
11, 14, 21, 24 columnar protruding portion
12, 13, 22, 23 circular hole
15, 25 gear pin inserting hole (pin inserting hole)
15a, 25a key groove
16, 26 gear pin (rotary force transmitting pin)
17a, 27a key protrusion
18, 28 gear portion
20 second rotary support shaft portion
30 support ring (rotation side member, fixture side member)
40 bezel (rotation side member)
51 LED element (light source)

Claims (5)

  1. An illumination lamp comprising:
    a fixture side member; and
    a rotation side member rotatably supported on the fixture side member by a rotary support shaft portion and to which a light source is fixed,
    wherein:
    the rotary support shaft portion includes:
    a circular hole provided at one of the fixture side member and the rotation side member,
    a columnar protruding portion provided at the other of the fixture side member and the rotation side member and inserted into the circular hole, and
    a rotary force transmitting pin press-fitted into a pin inserting hole of the columnar protruding portion, and
    press-fitting of the rotary force transmitting pin enlarges a diameter of the columnar protruding portion, thereby crimping an outer peripheral face of the columnar protruding portion to an inner peripheral face of the circular hole.
  2. The illumination lamp according to claim 1, further comprising:
    a housing fixed to a mounted member,
    a support ring rotatably supported on the housing by a first rotary support shaft portion, and
    a bezel rotatably supported on the support ring by a second rotary support shaft portion intersecting with the first rotary support shaft portion, and to which the light source is fixed,
    wherein:
    the circular hole is provided at one of the housing serving as the fixture side member in a rotation by the first rotary support shaft portion and the support ring serving as the rotation side member in the rotation by the first rotary support shaft portion, and
    the columnar protruding portion to be inserted into the circular hole is provided at the other of the housing and the support ring.
  3. The illumination lamp according to claim 2, wherein
    the circular hole is provided at one of the support ring serving as the fixture side member in a rotation by the second rotary support shaft portion and the bezel serving as the rotation side member in the rotation by the second rotary support shaft portion, and
    the columnar protruding portion to be inserted into the circular hole is provided at the other of the support ring and the bezel.
  4. The illumination lamp according to any one of claims 1 to 3 wherein the rotary force transmitting pin has a gear portion.
  5. The illumination lamp according to claim 1 wherein one of the rotary force transmitting pin and the pin inserting hole is provided with a key protrusion and the other of the rotary force transmitting pin and the pin inserting hole is provided with a key groove.
PCT/JP2012/004595 2011-07-25 2012-07-19 Vehicle interior lamp with a rotatably supported light source WO2013014888A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011162008A JP2013023139A (en) 2011-07-25 2011-07-25 Illuminating lamp
JP2011-162008 2011-07-25

Publications (1)

Publication Number Publication Date
WO2013014888A1 true WO2013014888A1 (en) 2013-01-31

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PCT/JP2012/004595 WO2013014888A1 (en) 2011-07-25 2012-07-19 Vehicle interior lamp with a rotatably supported light source

Country Status (2)

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JP (1) JP2013023139A (en)
WO (1) WO2013014888A1 (en)

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EP3232122A1 (en) * 2016-04-15 2017-10-18 GE Lighting Solutions, LLC Integrated cardan mechanism for adjustable luminaires
US10145519B1 (en) 2017-11-30 2018-12-04 Troy-CSL Lighting Inc. Adjustable optic and lighting device assembly
US10760782B2 (en) 2018-12-19 2020-09-01 Troy-CSL Lighting Inc. Adjustable optic and lighting device assembly with elastic member
US10955112B2 (en) 2018-10-30 2021-03-23 Troy-Csl Lighting, Inc. Adjustable optic and lighting device assembly
US10976031B2 (en) 2019-06-11 2021-04-13 Troy-CSL Lighting Inc. Adjustable lighting device with base connector
US11015794B2 (en) 2019-06-11 2021-05-25 Troy-CSL Lighting Inc. Adjustable lighting device

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JP7435424B2 (en) * 2020-12-04 2024-02-21 豊田合成株式会社 lighting equipment

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US10955112B2 (en) 2018-10-30 2021-03-23 Troy-Csl Lighting, Inc. Adjustable optic and lighting device assembly
US10760782B2 (en) 2018-12-19 2020-09-01 Troy-CSL Lighting Inc. Adjustable optic and lighting device assembly with elastic member
US11022293B2 (en) 2018-12-19 2021-06-01 Troy-CSL Lighting Inc. Adjustable optic and lighting device assembly with elastic member
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US11015794B2 (en) 2019-06-11 2021-05-25 Troy-CSL Lighting Inc. Adjustable lighting device

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