JP4400886B2 - Interior lighting - Google Patents

Description

  The present invention relates to a novel indoor lighting. Specifically, the present invention relates to a technology for configuring a room illumination lamp in a small size.

  Small interior lighting lamps called reading lamps are used in passenger aircraft and automobiles. Such an indoor lamp illuminates a narrow area in a spot manner so that the light from the indoor lamp does not interfere with the surroundings. For this reason, it is necessary for a person using an indoor lamp to accurately illuminate a desired position. For this reason, it is possible to adjust the lighting direction in this type of indoor lamp. It is configured.

  For example, in Patent Document 1, by rotating the locking ring (3) to the unlocked position, the lamp body (2) can be rotated and the illumination direction can be changed. When the locking ring (3) is rotated to the locked position, the elastic force of the elastic ring (4) acts strongly, the lamp housing (1) is pressed against the outer surface of the lamp body (2), and the lamp body (2 ) Is configured to be non-rotatable. In addition, the number in a parenthesis is the code | symbol attached | subjected to each part and member in drawing of patent document 1. FIG.

Japanese Utility Model Publication No. 6-42414

  By the way, in the interior lighting shown in Patent Document 1 described above, since the locking ring (3) is located inside the panel surface of the ceiling or wall, the operation of the locking ring (3) is performed by service personnel. This is not possible unless the person has access to the inside of the equal panel surface, and the passenger cannot adjust the lighting direction as desired.

  Further, since the elastic ring (4) acts on the outside of the housing (1), the size of the elastic ring (4) must be increased, and the overall size of the indoor lighting lamp is increased. Moreover, since the direction in which the elastic ring (4) directly acts and the direction in which the housing (1) tightens the body (2) using the force are substantially orthogonal, the pressing force of the elastic ring is sufficiently high. The elastic ring (4) is increased in size by not being used.

  Then, this invention makes it a subject to comprise an indoor illumination lamp small.

  In order to solve the above-described problems, the indoor lighting of the present invention includes a first body portion having a semiconductor light source and a lens portion, a second body portion positioned above the first body portion, and the first body portion. A body portion having a middle portion fixedly connected between the body portion and the second body portion and having a diameter smaller than that of the two body portions. A housing fixed from the side and fixed to a wall surface, etc., and a locking member that is substantially bowl-shaped and that contacts at least a part of the outer surface of the housing from the outside and is positioned in an outer fitting manner in the intermediate portion of the main body. A ring spring interposed between the rear end surface of the locking member and the second body portion of the main body, and the locking member and the ring spring are relatively rotatably arranged and contact each other The surface is uneven, and In the state where one convex portion and one concave portion of the ring member and the ring spring face each other, the main body portion and the locking member can be tilted with respect to the housing, and the one convex portion and the other convex portion correspond to and come into contact with each other. In this state, the locking member is pressed relative to the housing so that the housing is pressed against the outer surface of the main body so that the main body and the locking member cannot be tilted with respect to the housing. It is.

  Therefore, the interior illumination lamp of the present invention can be configured in a small size, and a strong pressing force can be obtained while the ring spring is configured in a small size.

  The interior illumination lamp of the present invention includes a first body portion having a lens portion and a semiconductor light source, a second body portion located above the first body portion, the first body portion, and the second body portion. A body part having an intermediate part formed so as to have a smaller diameter than the two body parts and a substantially annular shape, covering the body part substantially from the side and fixed to a wall surface or the like. A housing having a substantially bowl shape, contacting at least a part of the outer surface of the housing from the outside and positioned in an outer fitting manner in the intermediate portion of the main body, a rear end surface of the locking member, and the A ring spring interposed between the second body portion of the main body portion, the locking member and the ring spring are disposed so as to be relatively rotatable, and the contact surfaces of each other have an uneven shape, One of the locking member and ring spring The main body and the locking member can be tilted with respect to the housing in a state in which the concave portion and the one concave portion are opposed to each other, and the locking member is in contact with the housing in a state in which the one convex portion and the other convex portion are in contact with each other. The housing is relatively pressed against the outer surface of the main body by being pressed relatively, so that the main body and the locking member cannot be tilted with respect to the housing.

  Therefore, in the indoor lighting of the present invention, by providing the ring spring between the second body portion and the locking member, a strong pressing force can be obtained while reducing the size of the ring spring (small diameter).

  In the invention described in claim 2, since the opposing surfaces of the locking member and the housing are formed with concave and convex portions that engage with each other and restrict relative rotation between the locking member and the housing, The operating range in the rotation direction of the locking member can be restricted.

  In the invention described in claim 3, the first body portion includes a lens portion and a base portion, the base portion has a main portion having a spherical outer surface, and the lens portion has a spherical shape. Since the outer surface of the base portion and the side surface of the lens portion are formed as a spherical surface having side surfaces, the cost can be reduced by reducing the number of parts and the size can be reduced.

  The best mode for carrying out the indoor illumination lamp of the present invention will be described below with reference to the accompanying drawings.

  The interior lighting 1 includes a housing 10, which is fixed to a panel such as a ceiling or a wall, and other members are supported on the housing 10 so as to be tiltable and / or rotatable. The housing 10 has an annular shape with a large vertical width, and the inner side surface 11 and the outer side surface 12 are formed so as to form a part of a spherical surface. An engagement groove 13 extending over the entire circumference is formed in the lower end portion of the outer surface 12 of the housing 10, and the outer surface 12 has a substantially V-shape extending from the middle portion to the upper end at positions opposite to each other. Concave portions 14 are formed. And the housing 10 is attached to a panel in the state which the opening edge of the attachment hole formed in the panel (not shown) engaged with the said engaging groove 13. FIG.

  A main body, a locking member, and a ring spring are supported on the housing 10 so as to be tiltable and / or rotatable.

  The main body 20 is fixed between the first body 30, the second body 40 located above the first body 30, and the first body 30 and the second body 40. And an intermediate portion 50 that is connected to the two body portions 30 and 40 and has a diameter smaller than that of the two body portions 30 and 40.

  The first body part 30 includes a lens part 31, a base part 32, and a semiconductor light source, for example, an LED (light emitting diode) 33. The lens part 31 is formed of a transparent synthetic resin, and has a convex lens part and a lens action part 31a having a flange part positioned so as to surround the convex lens part, and a side part extending upward from the outer peripheral edge of the lens action part 31a 31b is integrally formed. And the outer side surface 31c of the side part 31b is formed so that a part of spherical surface may be made.

  The base portion 32 is formed by integrally forming a main portion 32a and a shaft portion 50 protruding upward from the center of the upper surface of the main portion 32a with a metal material having good thermal conductivity, and is disposed on the lower surface of the main portion 32a. The LED 33 is mounted on the substrate 32b. A standing wall 32c protrudes from the lower surface of the main portion 32a so as to surround the substrate 32b, and the lens portion 31 is in a state in which the upper end portion of the side surface portion 31b of the lens portion 31 is externally fitted to the standing wall 32c. It is fixed to the base part 32. The outer surface 32 d of the main portion 32 a of the base portion 32 is formed into a spherical surface that is continuous with the outer surface 31 c of the side surface portion 31 b of the lens portion 31.

  The shaft portion 50 is hollow, and a screw thread (not shown) is formed on the outer surface. And this axial part 50 comprises the above-mentioned intermediate part. That is, in this embodiment, the first body part and the intermediate part are integrally formed. Of course, the intermediate portion may be configured separately from the first body portion. A power supply cord (not shown) is inserted into the hollow portion 51 of the shaft portion 50 to the substrate 32b on which the LED 33 is mounted. Further, a restricting projection 34 projects from the base portion of the shaft portion 50 of the outer surface 32d of the main portion 32a (see FIGS. 9 and 10).

  The spherical surface of the inner surface 11 of the housing 10 and the spherical surfaces of the lens portion 31 of the first body portion 30 and the outer surfaces 31c and 32d of the base portion 32 are formed to have substantially the same radius of curvature. And the said housing 10 is located so that the part except the lower end part of the base part 32 of this edge part 20 and the lower end part of the side part 31b of the lens part 31 may be covered from a side.

  The second body portion 40 is made of a metal material having good thermal conductivity, and a large number of heat radiation blades 42, 42,... Around the shaft portion 41 located in the center portion are shafts of the shaft portion 41. Are disposed at an appropriate interval in a direction orthogonal to the radiating blades 42, 42,..., And are integrally connected to the shaft portion 41 at the center by connecting portions 43, 43,. . A screw groove (not shown) is formed on the inner peripheral surface of the shaft portion 41. In addition, an annular spring arrangement portion 44 is formed on the lower surface of the second body portion 40, and a detent projection 45 is projected at an appropriate position on the inner surface located outside the spring arrangement portion 44. ing.

  Then, the shaft portion (intermediate portion) 50 of the first body portion 30 is coupled to the shaft portion 41 of the second body portion 40 from below to form the main body portion 20.

  The locking member 60 is substantially shaped like a mortar, and an insertion hole 61 is formed in the upper center. The inner diameter of the insertion hole 61 is slightly larger than the outer diameter of the intermediate portion 50 of the main body portion 20. Is formed. The upper surface 62 of the portion corresponding to the hill of the locking member 60 is a contact surface, and the contact surface 62 is formed with three convex portions 62a, 62a, 62a spaced apart at substantially equal intervals in the circumferential direction. The convex parts 62a, 62a, 62a and the concave parts 62b, 62b, 62b located between them are connected by inclined surfaces 62c, 62c, 62c. An inner side surface 63 of the locking member 60 is formed in a substantially spherical shape, and engaging projections 64 are provided at two positions facing each other at the lower end of the inner side surface 63. Further, an arcuate guide recess 65 is formed at a position along the insertion hole 61 in the inner side surface 63 of the locking member 60 in a range of approximately 60 degrees in the central angle (see FIG. 7A).

  The intermediate portion 50 of the main body portion 20 is inserted into the insertion hole 61 of the locking member 60 described above, and the lower portion of the inner side surface 63 of the locking member 60 is in contact with the upper portion of the outer side surface 12 of the housing 10. The engaging protrusions 64, 64 of the locking member 60 are positioned in the recesses 14, 14 formed on the outer surface 12 of the housing 10. Further, the restricting protrusion 34 of the main body 20 is positioned in the guide recess 65 of the locking member 60 (see FIG. 10).

  A ring spring 70 is disposed between the second body portion 40 of the main body portion 20 and the locking member 60. The ring spring 70 is formed in an annular shape by a leaf spring material, and is formed so as to wave in the circumferential direction. The lower portion 71 is a contact surface, and the three portions 71a, 71a, 71a are projected downward. The three portions 71b, 71b, 71b that are recessed downward are concave portions, and the convex portions 71a, 71a, 71a and the concave portions 71b, 71b, 71b are respectively in the circumferential direction. They are spaced apart from each other, and are connected to each other by inclined portions 71c, 71c, 71c. And the engagement notch 72 is formed in the outer edge of the part made into the one recessed part 71b.

  The ring spring 70 described above is interposed between the second body portion 40 and the locking member 60 in a state where the ring spring 70 is positioned in a spring arrangement portion 44 formed on the lower surface of the second body portion 40 of the main body portion 20. Then, the engagement notch 72 of the ring spring 70 engages with the anti-rotation protrusion 45 formed on the spring arrangement portion 44, and thereby the ring spring 70 is prevented from rotating with respect to the main body portion 20.

  The above-described interior illumination lamp 1 is assembled as follows.

  The locking member 60, the ring spring 70, and the second body portion 40 of the main body portion 20 are arranged on the housing 10 in this order, and in this state, are integrally formed with the first body portion 30 of the main body portion 20. The intermediate portion 50 is inserted through the housing 10, the insertion hole 61 of the locking member 60, and the ring spring 70 in this order from the lower side. Finally, the intermediate portion 50 is screwed into the shaft portion 41 of the second body portion 40 and the first body portion 30. While integrating the 2nd body part 40 and assembling the main-body part 20, the interior lighting 1 is completed. The interior lighting 1 assembled as described above is assembled to a ceiling or wall panel.

  Next, the usage method of the room lamp 1 will be described.

  1 and 2 show a non-locked state, that is, a state in which the illumination direction can be adjusted. That is, the convex portions 71a, 71a, 71a of the ring spring 70 are in positions corresponding to the concave portions 62b, 62b, 62b of the locking member 60, and therefore, no force is applied to the locking member 60 from above. Between the inner surface 63 of the locking member 60 and the outer surface 12 of the housing 10 and between the inner surface 11 of the housing 10 and the outer surfaces 31c and 32d of the first body portion 30 are simply in contact. Therefore, the main body 20 can be freely tilted and rotated with respect to the housing 10. At this time, the limiting protrusion 34 (see FIG. 9) of the main body 20 is located near one end of the guide recess 65 of the locking member 60.

  Therefore, the position illuminated by the LED 33 is adjusted by tilting the main body 20 in a desired direction and at a desired angle with respect to the housing 10. Note that the rotation and tilting of the main body 20 can be performed with the lens portion 31 projecting indoors. Further, the tilting of the main body 20 with respect to the housing 10 is limited to a range in which the engagement protrusions 64 and 64 of the locking member 60 can move within the recesses 14 and 14 of the housing 10.

  And if the illumination direction is adjusted, the main-body part 20 will be rotated in a desired direction. Here, “rotation” means that the main body 20 is rotated around the axis 41 of the intermediate part 50 or the second body part 40, and “tilting” means that the intermediate part 50 or the second part is rotated. In other words, the axis 41 of the body portion 40 is inclined with the center of the inner surface 11 of the housing 10 as the center point. When the main body portion 20 is rotated from the state shown in FIGS. 1 and 2, the ring spring 70 in which the rotation protrusion 45 of the second body portion 40 and the engagement notch 72 are engaged rotates with the main body portion 20. The rotation range of the main body 20 is limited to a range in which the limiting projection 34 can move in the guide recess 65 of the locking member 60. Therefore, when the limit projection 34 is located near the other end of the guide recess 65, The convex portions 71a, 71a, 71a of the ring spring rotating together with the main body portion 20 and the locking member 60 are in contact with the convex portions 62a, 62a, 62a via the inclined surfaces 62c, 62c, 62c of the locking member 60 (FIG. 3 and FIG. 4). As a result, the ring spring 70 is compressed between the second body portion 40 of the main body portion 20 and the locking member 60, and a repulsive force is generated in the ring spring 70. The locking member 60 is pressed downward by the repulsive force generated in the ring spring 70, and the inner side surface 63 presses the outer side surface 12 of the housing 10 from the outside toward the inside. When the housing 10 is pressed from the outside toward the inside, the inner side surface 11 is pressed against the outer side surfaces 31c and 32d of the first body 30 of the main body portion 20, and the main body portion is caused by the frictional force generated there. The posture 20 is maintained.

  Further, when adjustment of the illumination direction is required, the main body 20 is rotated, and the protrusions 71a, 71a, 71a of the ring spring 70 are recessed with the recesses 62b, 62b of the locking member 60 as shown in FIGS. , 62b, the main body 20 can be tilted in a desired direction and angle.

  In the indoor illumination lamp 1, by providing the ring spring 70 between the second body portion 40 and the locking member 60, a strong pressing force can be obtained while making the ring spring 70 small (small diameter).

  The first body portion 30 includes a lens portion 31 and a base portion 32, the base portion 32 has a main portion 32a having a spherical outer surface, and the lens portion 31 has a spherical side surface 31c. In addition, since the outer surface 32d of the base portion 32 and the side surface 31c of the lens portion 31 form a continuous spherical surface, the cost can be reduced by reducing the number of parts, and the size can be reduced.

  In the above-described embodiment, the first body part 30 and the intermediate part 50 are integrally formed. However, by doing so, the number of parts can be further reduced. However, in the present invention, the first body portion 30 and the intermediate portion 50 do not necessarily have to be formed integrally, and the intermediate portion 50 may be formed integrally with the second body portion 40, or The first body part 30 and the second body part 40 may be formed separately from each other.

  Further, as described above, the base portion 32, the intermediate portion 50, and the second body portion 40 are all formed of a metal material having good thermal conductivity, and the heat radiating blades 42, 42, Are provided so as to function as a heat sink, so that heat generated in the semiconductor light source 33 and the substrate 32b by light emission of the semiconductor light source such as an LED can be effectively dissipated.

  It should be noted that the shapes and structures of the respective parts shown in the above-described embodiments are merely examples of implementations in carrying out the present invention, and these limit the technical scope of the present invention. It should not be interpreted.

The drawings show an embodiment of the indoor illumination lamp of the present invention, and this figure is a longitudinal sectional view showing the whole in an unlocked state. It is a side view which shows the whole in a non-locking state. It is a longitudinal cross-sectional view which shows the whole in a locked state. It is a side view which shows the whole in a locked state. It is a bottom view of the 2nd body part. It is a top view of a ring spring. The locking member is shown, (a) is a bottom view, (b) is a sectional view taken along line BB in (a). A housing is shown, (a) is a side view, (b) is sectional drawing which follows the BB line of (a). The base part of a 1st body part is shown, (a) is a top view, (b) is 9B view of (a). It is a figure which cuts and shows the principal part of an assembly state by the XX line of Fig.9 (a).

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Interior illumination lamp, 10 ... Housing, 14 ... Recessed part, 20 ... Recessed part, 30 ... 1st body part, 31 ... Lens part, 31b ... Side part, 31c ... Outer surface (spherical surface) 32 ... Base part, 32a ... Main part, 32d ... Outer surface (spherical surface), 33 ... LED (semiconductor light source), 40 ... Second body part, 50 ... Intermediate part, 60 ... Locking member, 62 ... Contact surface, 62a ... Convex part, 62b ... Concave part , 64 ... engagement protrusion (convex part), 70 ... ring spring, 71 ... contact surface, 71a ... convex part, 71b ... concave part

Claims (3)

A first body portion including a semiconductor light source and having a lens portion, a second body portion positioned above the first body portion, and a fixed space between the first body portion and the second body portion. A main body unit that includes an intermediate part that is connected and formed to have a smaller diameter than the two body parts;
A housing that is substantially annular and covers the body part from substantially the side, and is fixed to a wall surface or the like;
A locking member that is substantially hook-shaped and that contacts at least a part of the outer side surface of the housing from the outside and is positioned in an outer fitting manner in an intermediate portion of the body portion;
A ring spring interposed between the rear end surface of the locking member and the second body portion of the main body portion;
The locking member and the ring spring are disposed so as to be relatively rotatable, and contact surfaces of each other have an uneven shape,
In a state in which one convex portion of the locking member and the ring spring and one concave portion are opposed to each other, the main body portion and the locking member can be tilted with respect to the housing, and the one convex portion and the other convex portion correspond to and come into contact with each other. In this state, the locking member is pressed relative to the housing, so that the housing is pressed against the outer surface of the main body, and the main body and the locking member cannot be tilted with respect to the housing. Indoor lighting. The interior illumination lamp according to claim 1, wherein a concave and convex portion is formed on opposite surfaces of the locking member and the housing so as to engage with each other to restrict relative rotation between the locking member and the housing. . The first body part includes a lens part and a base part,
The base portion has a main portion having a spherical outer surface,
The lens part has a spherical side surface,
The interior illumination lamp according to claim 1 or 2, wherein an outer surface of the base portion and a side surface of the lens portion form a continuous spherical surface.

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