JP2013084455A - Led bulb - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an LED bulb in which a direction of the fixed LED bulb can be fixed in a desired direction.SOLUTION: When a rotation lock rod 70 is pushed down to make a rotation fixing member 64 positioned in a separated position, a body member is put into a free rotation, and when the pushing down of the rotation lock rod 70 is released, the rotation fixing member 64 is moved by energizing force of a spring 62 to a fixing position along a side face of a piston hole and an concave part of unevenness and a locking pawl are engaged to fix the body member on a base member. At this time, a rotation angle of the body member is regulated less than 360° by a regulation part. With this, the body member can be rotated and fixed in a free direction against the base member. In other words, while electrical connection between a non-rotating fixed member and the body member is being maintained, a diffusion part arranged on the body member can be rotated and fixed in a desired direction.

Description

  The present invention relates to an LED bulb.

  Conventionally, lighting fixtures used by being embedded in a ceiling surface are known. For example, Patent Document 1 includes a holder that supports a fluorescent lamp, a dome-shaped cover that accommodates the holder, and a base that is locked to a cylindrical portion of the cover, and an inner surface side of the cover and an outer surface of the holder Are engaged by a concavo-convex part formed continuously or intermittently on the same circumference, and a predetermined angle or more in the direction in which the cover and the holder oppose each other by applying a rotational torque of a predetermined value or more in the circumferential direction. A rotating bulb fluorescent lamp apparatus is described. According to this fluorescent lamp device, when a rotational torque of a predetermined level or more is applied to the cover, the cover and the holder rotate in opposite directions, and an excessive force is applied to the fluorescent lamp or the holder during installation, resulting in damage. To prevent you from doing.

JP-A-2005-19307

  By the way, various types of LED bulbs are used as lighting fixtures, and LED bulbs are widely used depending on the design of the LED bulb, in which the light emitted from the light-emitting unit varies depending on the viewing direction. When such an LED bulb is used, it is strongly required to position the light emitting unit in a desired direction. However, the lighting fixture described in Patent Document 1 is intended to prevent damage due to rotational torque. Therefore, there is a problem that it can be rotated only in one direction and cannot be fixed even if it can be rotated.

  This invention is made | formed in view of such a subject, and it aims at providing the LED light bulb which can fix a light emission part in a desired direction after an LED light bulb is attached.

  The present invention adopts the following means in order to achieve the main object described above.

The LED bulb of the present invention is
One end side of the base member and one end side of the main body member are in contact with each other, and the main body member rotates in a direction along the surface of the one end side of the base member,
The base member includes a base portion that can be attached to the LED light bulb attachment portion, and a fitting portion in which a plurality of irregularities are formed on the same circumference on a surface substantially parallel to the surface on one end side of the base member. With
The main body member includes: a light emitting unit that emits light; a rotation fixing unit that fits into a recess of the fitting unit; and a fixing position where the rotation fixing unit and the fitting unit are fitted or the rotation fixing unit. An operation unit for positioning the rotation fixing unit at a separation position separated from the fitting unit;
It is equipped with.

  In this LED bulb, when the rotation fixing portion is positioned at a separated position separated from the fitting portion by the operation portion, the main body member can be rotated in a direction along the surface on one end side of the base member, and the operation portion When the rotation fixing portion and the fitting portion are positioned at the fixing position, the main body member is fixed to the base member. By doing so, the main body member can be rotated in a state where the base member is fixed to the mounting portion for the LED bulb, so that the direction of the light emitting portion provided in the main body member is rotated and fixed in a desired direction. Can do.

  In the LED bulb of the present invention, the main body member may have one or more protrusions that engage with the recesses of the fitting portion. By doing so, when the protrusion provided on the main body member rotates, it can engage with the concave portion of the fitting portion. The rotation angle can be positioned for each interval between the recesses. In other words, the possibility that the main body member rotates more than a desired distance is reduced in advance, and the light emitting portion provided in the main body member is more easily rotated in a desired direction as compared with the case where there is no protrusion, Can be fixed.

  In the LED bulb of the present invention, the main body member has a storage hole at a position facing the fitting portion, and the rotation fixing portion moves along the wall surface of the storage hole, so that the fixed position or It may be positioned at the separation position. At this time, since the storage hole is provided at a position facing the fitting portion, the wall surface of the storage hole is always in a direction substantially perpendicular to the fitting portion. For this reason, since the rotation fixing member that moves along the wall surface of the storage hole always moves in the direction perpendicular to the fitting portion, the rotation fixing member can always be kept at an angle substantially perpendicular to the fitting portion. The fitting portion and the rotation fixing member can be easily fitted.

  The LED bulb of the present invention may include an urging portion that urges the rotation fixing portion toward the fitting portion. By doing so, the rotation fixing portion is biased in the direction of the fitting portion, so that the rotation fixing member is positioned at the fixing position when the operation portion is not operated. By doing so, the fitting portion and the unevenness are automatically urged by the urging portion, so that the main body member can be automatically fixed to the base member. In the LED bulb of the present invention adopting this aspect, the rotation fixing portion is fixed in a fixed position by being biased in the direction of the fitting portion by the biasing portion, and the fitting portion is fixed by the operation portion. It may be positioned at the separated position by being pressed in the direction opposite to the direction of. If it carries out like this, when it is positioned in the fixed position, it is fixed by the urging member, and it can be easily positioned in the separated position by pressing in the direction opposite to the fitting part by the operating part. . In other words, the direction of the light emitting part provided in the main body member can be more easily rotated and fixed as compared with the case where the biasing part is not provided.

  In the LED bulb of the present invention, the main body member may have a passage hole through which the operation portion can pass, and the operation portion may be a rod-like member at least partially passing through the passage hole. In this way, since the rotation fixing part can be operated by operating the operation part that has passed through the passage hole, it is easier to rotate than when the rotation fixing part provided on the base member is directly operated. The fixing part can be operated. In other words, since it becomes easy to operate the rotation fixing unit using the operation unit, the direction of the light emitting unit provided in the main body member can be more easily determined as compared with the case where the main body member is not provided. Can be rotated and fixed in the direction.

  The LED light bulb of the present invention includes power supply means for supplying power supplied to a base member to the main body member, and one end side of the base member and one end side of the main body member are provided with the base member. You may have the communicating hole which the said electric power supply means can pass in the position containing a rotating shaft. If the communication hole is not provided at a position that includes the rotation axis of the main body member, the main body member may be rotated and the power supply means may also be rotated, and the communication hole may be tangled or disconnected. Since the position of the power supply means does not move as the communication hole rotates, the possibility of tangling or disconnection can be reduced in advance.

  In the LED light bulb of the present invention, the main body member may have a light emitting section that looks at least two or more in appearance when viewed from the same direction as the base member rotates. Since such LED bulbs have different appearances depending on the direction of the light emitting part, the effect of applying the present invention is great.

FIG. 1 is a front view showing an outline of the configuration of the LED bulb 20. FIG. 2 is a cross-sectional view showing an AA cross section in FIG. FIG. 3 is a partially enlarged perspective view showing a part of a schematic configuration of the LED bulb 20. FIG. 4 is a partially enlarged cross-sectional view showing a part of the schematic configuration of the LED bulb 20. FIG. 5 is a perspective view for explaining an example of a manufacturing method for manufacturing the LED bulb 20. FIG. 6 is a perspective view for explaining an example of a manufacturing method for manufacturing the LED bulb 20. 7A and 7B are explanatory views for explaining the movement of the rotation lock rod 70. FIG. 7A shows a state in which the rotation fixing member 64 is fixed at a fixed position, and FIG. The state where the rotation fixing member 64 is positioned at the disengagement position by the lock rod 70 is shown.

  Here, based on the above-described drawings, the correspondence between the constituent elements of the present embodiment and the constituent elements of the present invention will be clarified in describing the embodiment for carrying out the present invention. The LED bulb 20 of the present embodiment corresponds to an LED bulb, the base member 30 corresponds to a base member, the main body member 40 corresponds to a main body member, the base 32 corresponds to a base portion, and the unevenness 38 is a fitting portion. The piston hole 60 corresponds to a storage hole, the rotation fixing member 64 corresponds to a rotation fixing portion, the rotation lock rod 70 corresponds to an operation portion, the engagement claw 57 corresponds to a projection portion, and the spring 62 Corresponds to the urging portion, the electrical wiring corresponds to the power supply means, the communication hole 59 corresponds to the communication hole, and the diffusion portion 86 corresponds to the diffusion portion. Note that by explaining the operation of the LED bulb 20, an example of how to use the LED bulb of the present invention is also clarified.

  Next, the configuration of the LED bulb 20 which is an example of the embodiment of the present invention will be described in detail with reference to FIGS. As shown in FIGS. 1 and 3, the LED bulb 20 includes a base member 30 having a base 32 screwed into an LED bulb mounting portion (not shown), and a main body member connected to the base member 30 in a rotatable state. 40, and a communication hole 59 is provided at a position including the center of rotation of the base member 30 and the main body member 40 (see FIG. 2). Electric power is supplied from the member 30 to the main body member 40.

  As shown in FIG. 3, the base member 30 has two semi-cylindrical members 34 combined in a substantially cylindrical shape (see FIG. 5B), and has a spiral groove outside the two semi-cylindrical members 34. It is a substantially cylindrical member in which a base 32 is disposed. The semi-cylindrical member 34 is provided with a convex portion 34a and a concave portion 34b. When the two semi-cylindrical members 34 are combined, the convex portion 34a and the concave portion 34b are engaged with each other. In addition, the base 32 is screwed into an LED bulb mounting portion (not shown) (for example, a mounting portion to which the E26 port defined by the JIS standard can be mounted) so that power can be supplied to the LED bulb 20. Furthermore, the bottom surface of the base member 30 (the surface that is inserted into the insertion groove 56 and contacts the lower portion 54 when connected to the main body member 40 as shown in FIG. 4) is substantially circular from the side surface toward the center. The extending portion 36 extends in a circumferential shape, and has a central hole 35 into which a connecting portion 50 described later is inserted in the central portion. The extending portion 36 is provided with irregularities 38 toward the inner side of the base member 30, and engages with an engaging claw 57 and a protruding portion 66, which will be described later, to bring the rotatable main body member 40 to a desired position. Position. Furthermore, a part of the extended portion 36 is provided with a restricting portion 37 projecting in the center side direction on the side surface on the center side.

  As shown in FIG. 3, the main body member 40 is provided with a connecting portion 50 that is connected to the base member 30 on one end side of the housing 41, and a light emitting portion 80 that emits light on the other end side of the housing 41. (See FIG. 2). The housing 41 is covered with a heat radiating portion 42 that releases heat generated in the light emitting portion 80, and a rotation lock rod 70 that communicates with the connecting portion 50 passes therethrough. Further, a guide portion 44 is provided at a boundary side portion between the connecting portion 50 and the heat radiating portion 42 and covers a connecting position between the main body member 40 and the base member 30. By doing so, the connection position between the main body member 40 and the base member 30 is prevented from being exposed to the outside, and sand, dust, or the like enters between the main body member 40 and the base member 30, and the main body member 40 and the base member 30 are thus exposed. The possibility of hindering rotation with the member 30 can be prevented in advance. As shown in FIG. 1, the heat dissipating part 42 is a metallic member having unevenness on the side surface, and increases the surface area in contact with the outside air by the unevenness on the side surface, thereby increasing the amount of heat released from the heat dissipating part 42 to the outside air. Yes. As shown in FIG. 2, the heat radiating portion 42 is in contact with an LED substrate 82 to be described later. Therefore, when the LED substrate 82 generates heat by use, heat is radiated from the LED substrate 82 through the heat radiating portion 42 to the outside air. Can be released. By carrying out like this, compared with the case where it does not have the thermal radiation part 42, more heat can be discharge | released to external air. In other words, the possibility that the LED substrate 82 or the LED 84 is defective due to heat can be reduced in advance.

  As shown in FIG. 4, the connecting portion 50 is formed by connecting substantially cylindrical members having different diameters between the upper portion 52 and the lower portion 54, and an insertion groove 56 is provided between the upper portion 52 and the lower portion 54. ing. The connecting portion 50 is fixed to the housing 41 with screws 51 (see FIG. 5A). Further, an engaging claw 57 that protrudes toward the lower portion 54 is provided on the surface on the upper 52 side of the insertion groove 56, and a restricting claw 58 that protrudes toward the upper 52 direction is provided on the surface on the lower 54 side. Is provided. At this time, since the width of the insertion groove 56 is wider than the sum of the height of the convex portion of the unevenness 38 and the height of the engaging claw 57, the engaging claw 57 is brought into contact with the surface of the unevenness 38 with the rotation of the main body member 40. Accordingly, the main body member 40 can be rotated. On the other hand, by stopping the rotation of the main body member 40 at a position where the engaging claw 57 engages with the concave portion of the unevenness 38, the main body member 40 can be positioned at a desired position. Further, since the restricting claw 58 that rotates along with the rotation of the main body member 40 interferes with the restricting portion 37 provided on the base member 30 to interfere with each other, the main body member 40 rotates by 360 ° or more. I can't. By doing this, by rotating the main body member 40 by 360 ° or more, one end side of the electric wiring connecting the main body member 40 and the base member 30 rotates with the rotation of the main body member 40, and the electric wiring can be disconnected. Can be reduced in advance.

  Further, as shown in FIG. 3, the upper portion 52 is provided with a piston hole 60 having an opening on the lower surface side of the upper portion 52, and the piston hole 60 has an inner diameter substantially the same as the inner diameter of the piston hole 60. A rotation fixing member 64 having a size is provided. The rotation fixing member 64 is biased toward the opening direction of the piston hole 60 while being movable along the wall surface of the piston hole 60 by the spring 62. In addition, a protrusion 66 is provided on the surface of the rotation fixing member 64 facing the unevenness 38, and the unevenness 38 and the protrusion 66 can be engaged with each other.

  The rotation lock rod 70 is a rod-like member that penetrates and extends from the base 32 side to the light emitting portion 80 side, and a locking projection 72 is provided on the side surface on the light emitting portion 80 side so as to be separated from a part of the main body member 40. It has been. In addition, a part of the tip portion on the light emitting unit 80 side extends to the outside of the main body member 40, and the rotation lock rod 70 can be pressed from the outside. Further, the end portion on the base 32 side is in contact with the surface of the rotation fixing member 64, and the rotation lock rod 70 can also be moved with the movement of the rotation fixing member 64. The rotation fixing member 64 is biased by the spring 62 in the opening direction from the bottom surface direction of the piston hole 60, so that the rotation lock rod 70 is also biased in the opening direction from the bottom surface direction of the piston hole 60. Accordingly, the rotation lock rod 70 is positioned in a state where the locking projection 72 is biased to a part of the main body member 40.

  As shown in FIG. 2, the light emitting unit 80 diffuses the light emitted from the plurality of LED substrates 82 provided at positions in contact with the heat radiation unit 42, the LEDs 84 provided on the LED substrate 82, and the LEDs 84. And a diffusing unit 86. The LED 84 is a light emitting diode that emits white light, and is electrically connected to the base 32 via the LED substrate 82 and a lead wire (not shown). For this reason, when the base 32 is screwed into an LED bulb mounting portion (not shown), power is supplied to the LED 84 and the LED 84 emits light. When the LED 84 emits light, light enters the diffusion portion 86 from the base 32 side of the diffusion portion 86 and is diffused by the diffusion dots 88. In addition, since the LED 84 is attached to the diffusion portion 86 side of the LED substrate 82, when the LED 84 generates heat due to use, heat is conducted from the LED 84 to the heat dissipation portion 42 via the LED substrate 82, and is generated in the LED 84. The released heat can be released to the heat radiating section 42. By doing so, the possibility that the LED 84 may malfunction due to heat is reduced in advance, and the LED 84 can be used for a long period of time.

  As shown in FIG. 1, the diffusion portion 86 is provided with a plurality of diffusion dots 88 on the surface of a resin member formed in a desired shape. A plurality of LEDs 84 are arranged on the base 32 side of the diffusing portion 86 (see FIG. 2), and light emitted from the LEDs 84 enters the diffusing portion 86 and is diffused by the diffusing dots 88. By doing so, even when the LED 84 having high straightness of the irradiated light is used, the light can be irradiated over a wide range. The diffusion dot 88 is a concave portion that is recessed in a substantially quadrangular pyramid shape in the inner direction, and is provided so that a position corresponding to the bottom surface of the quadrangular pyramid is located on the surface of the diffusion portion 86. Since the diffusing dots 88 are regularly provided in the vertical direction and the horizontal direction, the diffused dots 88 give an impression arranged more orderly or in a grid pattern as compared to the case where they are provided irregularly. be able to. In other words, an excellent aesthetic appearance can be produced as compared with the case where the diffusion dots 88 are provided irregularly. Note that the diffusing dots 88 in the figure are drawn larger than actual for the sake of explanation.

  Here, an example of a manufacturing method of the LED bulb 20 configured as described above, in particular, an assembling method of each of the above members will be described in detail with reference to FIGS. 5 and 6. Here, FIGS. 5 and 6 are perspective views for explaining an example of the manufacturing method of the LED bulb 20, and FIG. 5 (A) shows a connection method for connecting the connecting portion 50 to the housing 41. FIG. B) shows attachment methods for attaching the semi-cylindrical member 34 to the connecting portion 50, respectively. 6A shows a method of fixing the semi-cylindrical member 34 with the base 32 and the guide portion 44, and FIG. 6B shows a state where the semi-cylindrical member 34 is fixed with the base 32 and the guide portion 44. Each is shown. 5 and 6, the description of the light emitting unit 80 is omitted for the sake of explanation.

  When assembling the LED bulb 20, as shown in FIG. 5A, the connecting portion 50 is fixed to one end side of the housing 41 using screws 51. Specifically, the lower part 54 of the connecting part 50 and the upper surface of the housing 41 are fixed with two screws 51. Thus, even if the connecting member 50 is firmly fixed to the housing 41 using the screws 51, even if the main body member 40 including the housing 41 is rotated while holding the heat radiation portion 42, the main body member 40 is rotated. And the possibility of disconnection of the connecting portion 50 can be reduced in advance.

  Next, as shown in FIG. 5B, the connecting portion 50 is sandwiched between the semi-cylindrical members 34 from both side surfaces of the connecting portion 50. At this time, since the convex portion 34a and the concave portion 34b are respectively provided on the surfaces facing when the connecting portion 50 is sandwiched between the semi-cylindrical members 34, the convex portions are formed when the connecting portion 50 is sandwiched between the semi-cylindrical members 34. By engaging 34a and the recessed part 34b, possibility that the semi-cylindrical members 34 will shift | deviate beforehand can be reduced beforehand, and the effort at the time of attachment can be reduced.

  Subsequently, as shown in FIG. 6A, the guide portion 44 is fitted from the outside into the semi-cylindrical member 34 sandwiching the connecting portion 50. By doing so, the semi-cylindrical members 34 cannot move away from each other, and therefore the possibility that the semi-cylindrical member 34 and the connecting portion 50 are detached can be reduced.

  Finally, the base 32 is rotated along the outer surface of the semi-cylindrical member 34 sandwiching the connecting portion 50, and the base 32 is screwed into a position where it comes into contact with the guide portion 44. This prevents the semi-cylindrical members 34 from moving in directions away from each other and presses the guide portion 44 toward the heat radiating portion 42 so that the semi-cylindrical member 34 can rotate the connecting portion 50. Can be held. In this way, when the connecting portion 50 that is a part of the main body member 40 is sandwiched by the semi-cylindrical member 34 that is a part of the base member 30, the base member 30 and the main body member 40 are connected to each other. The possibility that the main body member 40 is detached can be reduced in advance.

  Next, the operation of the LED bulb 20 assembled in this manner, particularly the operation when rotating the main body member 40 will be described in more detail with reference to FIG. When the LED bulb 20 is used, the base 32 is screwed into an attachment port (not shown), but when a plurality of LED bulbs 20 are attached, the directions of the LED bulbs 20 are usually different. The directions of light diffused by the diffusing unit 86 are also uneven. For this reason, since the aesthetic appearance extended by diffused light also lacks a sense of unity, there is a desire to unify the direction of the diffusing unit 86 in a desired direction and produce a aesthetic sense of unity. However, since the entire LED bulb 20 including the main body member 40 and the base member 30 rotates when the base 32 is screwed together, the direction of the diffusion portion 86 is set to a desired direction when the LED bulb 20 is attached. It is difficult. Therefore, after the LED bulb 20 is attached, the main body member 40 is rotated by the following procedure, thereby positioning the direction of the diffusing portion 86 in a desired direction.

  When rotating the main body member 40, first, one end side of the rotation lock rod 70 is pressed in the direction of the base member 30 and rotated from the fixed position shown in FIG. 7 (A) to the separated position shown in FIG. 7 (B). The lock rod 70 is positioned. Specifically, when one end side of the rotation lock rod 70 is pressed, the end of the rotation lock rod 70 on the base 32 side presses the surface of the rotation fixing member 64 toward the bottom surface of the piston hole 60, and the rotation fixing member 64. Moves along the side surface of the piston hole 60 toward the bottom surface of the piston hole 60 while contracting the spring 62. By doing so, the rotation fixing member 64 is positioned at the separation position, the engagement between the protrusion 66 and the projections and depressions 38 is released, and the main body member 40 becomes rotatable. At this time, since the diffusing portion 86 is provided in the main body member 40, by rotating the main body member 40 in this state, the diffusing portion 86 can be set in a desired manner without rotating the base member 30 to which the base 32 is fixed. Can be rotated in the direction. In addition, in a state where the rotation fixing member 64 is positioned at the separated position by the rotation lock rod 70, the engagement between the projections and recesses 38 and the protrusion 66 is released, but the projections and recesses 38 and the engagement claws 57 remain in contact with each other. Kept in a state. For this reason, when the main body member 40 is rotated in this state, the engaging claw 57 moves on the surface of the concave and convex portion 38 as the main body member 40 rotates, and when the engaging claw 57 gets stuck in the concave portion of the concave and convex portion 38 When the engaging claw 57 passes through the 38 convex portions, the force required during rotation changes. By doing so, each time the rotation fixing member 64 advances by a predetermined distance due to the unevenness 38 provided at regular intervals, the engagement claw 57 is caught in the recess, so compared with the case where the engagement claw 57 is not provided, It is easier to rotate and fix the body member 40 to a more desired position. Further, when the restriction claw 58 rotates by a predetermined angle along with the rotation of the main body member 40, it interferes with the restriction portion 37 provided on the base member 30 and the rotation of the main body member 40 is restricted. For this reason, the rotation angle of the main body member 40 is less than 360 °. In this way, by rotating the main body member 40 by 360 ° or more in the same direction, the electric wiring (not shown) connecting the base member 30 fixed to the mounting opening (not shown) and the rotating main body member 40 is twisted. Thus, the possibility of disconnection or damage to the connection portion with the electrical wiring can be reduced in advance.

  After the main body member 40 is rotated in a desired direction, the rotation lock rod 70 is released. When the rotation lock rod 70 is in the released state, the rotation fixing member 64 moves along the side surface of the piston hole 60 from the separated position shown in FIG. 7B to the fixed position shown in FIG. To do. At this time, with the movement of the rotation fixing member 64, the rotation lock rod 70 is moved to the surface of the rotation fixing member 64 until the locking projection 72 provided on the side surface of the rotation lock rod 70 contacts the surface of the main body member 40. It is pushed by and moves. With this movement, the tip on the side where the locking projection 72 is provided partially extends to the outside of the main body member 40, so that the rotation lock rod 70 can be pressed again. Further, when the rotation fixing member 64 is positioned at the fixed position, the protrusion 66 provided on the rotation fixing member 64 and the projections and depressions 38 provided on the base member 30 are engaged, and the main body member 40 is engaged with the base member 30. Fixed.

  According to the LED bulb 20 of the present embodiment described in detail above, the main body member 40 can be rotated by depressing the rotation lock rod 70 and positioning the rotation fixing member 64 at the separated position, and the rotation lock rod. When the pressing state of 70 is released, the rotation fixing member 64 is moved to the fixing position along the side surface of the piston hole 60 by the urging force of the spring 62, and the concave portion of the unevenness 38 and the engaging claw 57 are engaged with each other. 40 is fixed to the base member 30. By doing so, the main body member 40 can be rotated and fixed to the base member 30 in a free direction. In other words, the direction of the diffusing portion 86 provided on the main body member 40 can be rotated and fixed in a desired direction.

  Further, since the main body member 40 has an engaging claw 57 that engages with the projections and depressions 38, when the main body member 40 is rotated, the protrusion 66 is engaged with each of the recessed portions provided at regular intervals. Compared with the case where the main body member 40 does not have the engaging claw 57, the main body member 40 can be easily positioned in a desired direction.

  Further, since the rotation fixing member 64 moves along the side surface of the piston hole 60 provided at a position facing the unevenness 38 and is positioned at the fixing position or the separation position, the protrusion provided on the rotation fixing member 64 is provided. 66 always moves in a direction substantially perpendicular to the irregularities 38. When the main body member 40 is rotated, the angle of the protrusion 66 with respect to the irregularities 38 changes to an angle other than a substantially right angle. The possibility that the projection 66 cannot be fitted can be reduced. In other words, as compared with the case where the piston hole 60 is not provided, the possibility that the unevenness 38 and the rotation fixing member 64 cannot be fitted and the main body member 40 cannot be fixed can be reduced.

  Furthermore, since the rotation fixing member 64 is biased in the direction of the unevenness 38 by the spring 62, when the main body member 40 is positioned in a desired direction, the protrusion 66 is attached in a state where the protrusion 66 is engaged with the concave portion of the unevenness 38. The main body member 40 can be fixed to the base member 30 with the main body member 40 facing a desired direction.

  The rotation fixing member 64 is fixed at a fixed position while being urged in the direction of the unevenness 38 by the spring 62 and is positioned at the separated position by being pressed by the rotation lock rod 70. The main body member 40 is fixed to the base member 30 in a desired direction by a simple operation of positioning the rotation fixing member 64 at the separation position by a simple operation of pressing the rotation lock and releasing the press of the rotation lock rod 70. be able to.

  Further, since the tip of the rotation lock rod 70 on the side where the locking projection 72 is provided partially extends to the outside of the main body member 40, the rotation lock rod 70 can be operated on the main body member 40 side. it can. For this reason, for example, compared with the case where the rotation lock rod 70 is short and it is necessary to operate in the vicinity of the rotation fixing member 64, the operability when positioning the rotation fixing member 64 at the fixed position or the separation position is further improved. Can do.

  Furthermore, since the communication hole 59 is provided at a position including the rotation center of the base member 30 and the main body member 40, by passing a power cable (not shown) through the communication hole 59, the base member 30 is connected to the main body member 40. Electric power can be supplied. At this time, since the communication hole 59 is located at a position including the rotation center of the base member 30 and the main body member 40, the possibility that the power cable is tangled or twisted with the rotation of the main body member 40 is reduced. In addition, the possibility of disconnection of the power cable can be further reduced.

  In addition, since the diffusing portion 86 is designed and has an appearance that differs depending on the viewing direction, there is a great demand for positioning the body member 40 in a desired direction by rotating it.

  It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that the present invention can be implemented in various modes as long as it belongs to the technical scope of the present invention.

  For example, in the above-described embodiment, the protrusion 66 is provided on the rotation fixing member 64, but the protrusion may not be provided. Also in this case, the same effect as the above-described embodiment can be obtained.

  In the above-described embodiment, the rotation fixing member 64 is provided along the wall surface of the piston hole 60, but the rotation fixing member 64 is engaged with the base member 30 and is detached from the base member 30. The piston hole 60 may not be provided as long as the positioning is possible. Also in this case, the same effect as the above-described embodiment can be obtained.

  In the embodiment described above, the end on the base 32 side of the rotation lock rod 70 is in contact with the surface of the rotation fixing member 64, but the end on the base 32 side of the rotation lock rod 70 is the rotation fixing member 64. It may be fixed to the surface. In this case, the rotation fixing member 64 can be positioned at the fixed position and the separated position without requiring the biasing force of the spring 62, so that it is not necessary to provide the spring 62. In other words, the labor for attaching the spring 62 during manufacturing can be reduced.

  In the above-described embodiment, the base member 30 and the main body member 40 are connected by electric wiring (not shown), but means for electrically connecting the base member 30 and the main body member 40 is limited to electric wiring. Instead, a known rotating body power supply system such as a slip ring system may be used, or a non-contact power transmission system using electromagnetic induction or electromagnetic resonance may be used. When these systems are adopted, no matter how the main body member 40 is rotated, there is no possibility that the electric wiring connecting the base member 30 and the main body member 40 will be damaged. 58 need not be provided.

  As shown in the above-described embodiment, it can be used as a lighting field, particularly as an LED bulb.

  DESCRIPTION OF SYMBOLS 20 ... LED light bulb, 30 ... Base member, 32 ... Base, 34 ... Semi-cylindrical member 34a ... Convex part, 34b ... Concave part, 35 ... Center hole, 36 ... Extension part, 37 ... Restriction part, 38 ... Concavity and convexity, 40 ... Main body member 41 ... Housing 42 ... Heat radiation part 44 ... Guide part 50 ... Connection part 51 ... Screw 52 ... Upper part 54 ... Lower part 56 ... Insertion groove 57 ... Engagement claw 58 ... Restriction claw 59 ... Communication hole, 60 ... Piston hole, 62 ... Spring, 64 ... Rotation fixing member, 66 ... Protrusion, 70 ... Rotation lock rod, 72 ... Locking projection, 78 ... Diffusion dot, 80 ... Light emitting part, 82 ... LED substrate, 84... LED, 86.

Claims (8)

One end side of the base member and one end side of the main body member are in contact with each other, and the main body member rotates in a direction along the surface of the one end side of the base member,
The base member includes a base portion that can be attached to the LED light bulb attachment portion, and a fitting portion in which a plurality of irregularities are formed on the same circumference on a surface substantially parallel to the surface on one end side of the base member. With
The main body member includes: a light emitting unit that emits light; a rotation fixing unit that fits into a recess of the fitting unit; and a fixing position where the rotation fixing unit and the fitting unit are fitted or the rotation fixing unit. An operation part for positioning the rotation fixing part at a separation position away from the fitting part,
LED bulb. The main body member has one or more protrusions that engage with the recesses of the fitting portion.
The LED bulb according to claim 1. The main body member has a storage hole at a position facing the fitting portion,
The rotation fixing portion is positioned at the fixing position or the separation position by moving along the wall surface of the storage hole.
The LED bulb according to claim 1 or 2. The LED bulb according to any one of claims 1 to 3,
An urging portion for urging the rotation fixing portion in the direction of the fitting portion;
With
LED bulb. The rotation fixing portion is fixed at a fixed position by being biased in the direction of the fitting portion by the biasing portion, and is pressed in a direction opposite to the direction of the fitting portion by the operation portion. Positioned in the separated position,
The LED bulb according to claim 4. The main body member has a passage hole through which the operation unit can pass,
The operation part is a rod-shaped member at least partially passing through the passage hole.
The LED bulb according to any one of claims 1 to 5. The LED bulb according to any one of claims 1 to 6,
Power supply means for supplying power supplied to the base member to the main body member;
With
The one end side of the base member and the one end side of the main body member have a communication hole through which the power supply means can pass at a position including the rotation shaft of the base member.
LED bulb. As the base member rotates, the main body member has a diffusing portion whose appearance when viewed from the same direction is at least two or more forms.
The LED light bulb according to claim 1.

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