JP2019165030A - Straight tube type luminaire - Google Patents

Abstract

To provide a straight tube type luminaire capable of changing an irradiation direction.SOLUTION: A straight tube type luminaire including a rotary base which can change an irradiation direction by rotating a light source unit around a tube axis includes: a first base member connected to a socket; and a second base member in which at least one part is stored in a first base member. The first base member has at least one rib on an inner peripheral surface. The second base member has at least two crest parts formed on an outer periphery on one side with respect to a predetermined surface including the tube axis. By the rib being locked by the crest part, a range for relative rotation between the first base member and the second base member is regulated.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a straight tube illuminating device, and more particularly to a straight tube illuminating device capable of changing an irradiation direction by rotating a light source unit.

  In recent years, the use of lighting devices using power-saving and long-life LED elements as light sources has become widespread. In addition, LED tube straight tube lighting devices that can be used as they are for fluorescent lamps are spreading. For example, a straight tube illumination device capable of changing the irradiation direction by rotating the light source unit is already known (see, for example, Patent Document 1).

JP 2014-7091 A

  In the straight tube illumination device described in Patent Document 1, the rotation angle of the light source unit is, for example, about 90 degrees. However, it is preferable to increase the range of rotation so that the straight tube illumination device can be used in various situations.

  In order to solve the above-described problems, an object of the present invention is to provide a lighting device having a larger rotation angle.

  In order to achieve the above object, a straight tube illuminating device according to the present invention is provided with a straight tube illuminating device including a rotary base that can change an irradiation direction by rotating a light source unit around a tube axis. A first base member connected to the socket; and a second base member that is at least partially housed in the first base member. The first base member has at least one rib on the inner peripheral surface. The second base member has at least two crests formed on the outer periphery on one side when divided from a predetermined surface including the tube axis when viewed from the outside of the tube axis, and the ribs are locked by the crests. By doing so, the range of relative rotation between the first base member and the second base member is defined.

  According to the present invention, the crest and the rib are provided on different sides with respect to the predetermined surface including the tube axis, and the rib is locked by the crest so that the gap is between the first cap member and the second cap member. By defining the range of relative rotation, it is possible to provide a lighting device with a larger rotation angle.

It is a perspective view of the straight tube | pipe type illuminating device which concerns on one Embodiment of this invention. It is an assembly drawing of the rotary base which concerns on one Embodiment of this invention. It is an assembly drawing of the rotary base which concerns on one Embodiment of this invention. It is sectional drawing of the rotary nozzle | cap | die which concerns on one Embodiment of this invention. It is a fragmentary sectional view which shows the internal structure of the rotary base which concerns on one Embodiment of this invention. It is a cross-sectional view of a rotary base according to an embodiment of the present invention. The other example of the 2nd nozzle | cap | die member which concerns on one Embodiment of this invention is shown, (a) And (b) is the perspective view which changed the angle which looks down, (c) is a front view.

  An embodiment of the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view of a straight tube illumination device according to an embodiment of the present invention. As shown in the figure, a straight tube illumination device 1 includes a rotary base 30 that is electrically connected to an external power source, a translucent cover 2 that covers a light emitting element substrate (not shown) and transmits illumination light from the light emitting element, The light-shielding cover 3 which covers the power supply circuit board which is not shown in figure, and the connection part 4 which connects a light emitting element board | substrate and the rotary base 30 are provided. Although the details will be described later, the straight tube illumination device 1 rotates the light source unit around the tube axis by a rotary base 30 connected to the light source unit made of a light emitting element, a power circuit board, and the like through the connection portion 4. Thus, the illumination device can change the irradiation direction.

  Next, the rotary base 30 will be described. FIG. 2 is an assembly diagram of the rotary base 30. As shown in the figure, the rotary base 30 includes a first base member 10 and a second base member 20. Although only the rotary base 30 is shown for the sake of explanation, when the straight tube illumination device 1 is actually assembled, the second light source unit including the light emitting element and the power circuit board is connected to the second through the connection portion 4. After the base member 20 is connected, the first base member 10 is attached to the second base member 20.

  The first base member 10 is provided with a terminal 12 connected to a socket of a lamp. Moreover, the 1st nozzle | cap | die member 10 has the through-hole 13 which has a cylindrical axial part integrally. The first base member 10 is attached to the second base member 20 by a set screw 15 via an elastic member (for example, a coil spring) 14 inserted into the through hole 13. Further, the first base member 10 is provided with a plurality of marks 11 at equal intervals on the translucent cover side so that the relative angle between the light source unit and the rotary base 30 can be seen.

  The second cap member 20 has a plurality of peaks on the outer periphery 21. These ridges include two first ridges 22 in which the length of the ridges in the longitudinal direction is longer than the other ridges. The first peak portion 22 is provided adjacent to a screw hole 25 a into which a screw 25 for connecting the second base member 20 to the connection portion 4 is inserted. Here, the two first ridges 22 are surfaces including a line orthogonal to a line that is symmetrical with respect to the radial cross section of the rotary base 30 and a pipe axis (predetermined including the pipe axis when viewed from the pipe axis outer direction). ) On the one side when the straight tube illumination device 1 is divided. Here, the side where the two first peak portions 22 are located is the irradiation side of the straight tube illumination device 1, that is, the translucent cover side. The second base member 20 includes a plurality of second peak portions 21 a and 21 b that are shorter than the first peak portion 22. Here, the lengths of the second peak portions 21a and 21b are the same. The second peak 21a is located on the side where the first peak 22 is located with respect to the cover boundary surface, and the second peak 21b is provided on the side where the first peak 22 is not located. The first peak portion 22 and the second peak portions 21a and 21b are provided so as to be line-symmetric with respect to a plane that includes the tube axis and is orthogonal to the cover boundary surface.

  The second cap member 20 is inserted with a stepped pin 23 longer than the length of the through hole 24 from the light source unit side of the through hole 24. The stepped pin 23 has a large diameter part, a medium diameter part, and a small diameter part. The outer diameter of the stepped pin 23 is smaller than the inner diameter of the coil spring 14 inserted from the through hole 13 of the first cap member 10, and the inner diameter of the stepped pin 23 corresponds to the set screw 15. When the first base member 10 is attached to the second base member 20, the tip of the stepped pin 23 is inserted from the light source unit side of the through hole 13 of the first base member 10, and the through hole of the second base member 20 is inserted. 24, the cylindrical tip of the through hole 13 of the first base member 10 is inserted and combined. Then, the first base member 10 and the second base member 20 are connected by the set screw 15 via the coil spring 14. At this time, at least a part of the second base member 20 is accommodated in the first base member 10. Thus, since the rotary base 30 is configured by connecting the first base member 10 to the second base member 20 via the coil spring 14, the first base member 10 extends outside the pipe in the tube axis direction. By applying such a force, the position of the first base member 10 can be moved directly to the outside of the tube.

  FIG. 3 is an assembly view of the rotary base 30 as viewed from the light source unit side. As shown in the figure, the first base member 10 has a second rib 16 a on the inner peripheral surface 16. Although the details will be described later, the first base member 10 has at least one rib on the inner peripheral surface 16, and the rib of the first base member 10 is locked by the first peak portion 22 of the second base member 20. Thus, the range of relative rotation between the first base member 10 and the second base member 20 is defined. The second cap member 20 has a through hole 27 for passing a power cord or the like on the power circuit board side of the light source unit. A stepped pin 23 is inserted into the through hole 24.

Next, the rib provided in the internal peripheral surface of the 1st nozzle | cap | die member 10 is demonstrated with reference to figures. FIG. 4 is a perspective cross-sectional view of the rotary base 30 on a plane orthogonal to the tube axis. In FIG. 4, the rotary base 30 is in the initial position, and the reference mark 41 of the connecting portion 4 and the first base member 10.
Is opposed to the reference mark 11a. The reference mark 41 of the connection portion 4 is provided at a position where the connection portion 4 intersects the surface orthogonal to the light emitting element substrate and including the tube axis. Further, the first base member 10 is in a state of being pressed against the inner side of the pipe in the tube axis direction by the coil spring 14, that is, the second base member 20, and is not extended.

  4A is a perspective cross-sectional view seen from the translucent cover 2 side, and FIG. 4B is a perspective cross-sectional view seen from the light-shielding cover 3 side. As shown in FIG. 4A, the inner peripheral surface 16 of the first base member 10 is provided with a first rib 16b and two second ribs 16a as shown in FIG. 4B. . The first rib 16 b engages with the second peak portion 21 b of the second base member 20. Further, the second rib 16 a is engaged with the second peak portion 21 a of the second base member 20. Further, as shown in the figure, the length of the first rib 16b is longer than the length of the second rib 16a. That is, the end portion on the inner side of the tube in the tube axis direction of the second rib 16a is located on the outer side of the tube with respect to the end portion of the first rib 16b. The first peak portion 22 is provided in a semicircle on the surface orthogonal to the major axis direction of the second base member 20, and the second base member 20 is accommodated in the first base member 10 by the first rib 16 b. In doing so, it is located on the semicircle side different from the semicircle provided with the first peak portion 22.

  FIG. 5 is a partial cross-sectional view of the rotary base 30. FIG. 5 shows the rotary base 30 in the initial position as in FIG. 4, but unlike FIG. 4, the translucent cover 2 side is shown in the upper side in the drawing. As shown in the figure, the second rib 16a of the first base member 10 engages with the second peak portion 21a, but a force that moves the first base member 10 to the outside of the tube is applied to the first base member 10. By moving toward the outer side of the tube axis, the second rib 16a and the second peak portion 21a are disengaged, and the first base member can be rotated around the tube axis. At this time, the first rib 16b (not shown) is also engaged with the second peak portion 21b, but can be disengaged by moving the first base member 10 to the outside of the tube as described above. Yes, the first base member can be rotated around the tube axis. A flat terminal 18 connected to the terminal 12 exists inside the first base member 10.

  FIG. 6 is a cross-sectional view taken along a plane passing through the tube axis when the rotary base 30 is in the initial state. FIG. 6 shows a view from the light-shielding cover 3 side. P indicates a tube axis. As shown in the drawing, the two first peak portions 22 are located within a predetermined range on one side with respect to the surface including the tube axis P.

  Here, the operation of the rotary base 30 will be described in detail. The first base member 10 is biased toward the second base member 20 by the coil spring 14. In this state, the first peak portion 22 and the second peak portions 21 a and 21 b provided on the outer periphery 21 of the second base member 20, the first rib 16 b provided on the inner peripheral surface 16 of the first base member 10, and The second rib 16a engages. As a result, the first base member 10 is in a state in which the second base member 20 is prevented from rotating about the tube axis P as the rotation center. At this time, the second peak 21a and the second rib 16a are engaged, and the second peak 21b and the first rib 16b are respectively engaged. When the first base member 10 is rotated, a force is applied to the second base member 20 by moving the first base member 10 outward along the tube axis P of the straight tube illumination device 1. The engagement between the provided second peak portion 21b and the first rib 16b provided on the first base member 10 can be released. As a result, the first base member 10 is in a state in which the second base member 20 is allowed to rotate about the tube axis P as a rotation center. When the first base member 10 is rotated in a desired direction in a state in which this engagement is disengaged, and the force in the tube outward direction applied to the first base member 10 is eliminated, the first force is applied to the first base member 10 by the biasing force of the coil spring 14. The base member 10 is pulled in the pipe inner direction, the rib of the first base member 10 and the peak portion of the second base member 20 are engaged, and further rotation of the first base member 10 is prevented. In the drawing, the interval between the coil springs 14 is changed in order to show the stretched state of the coil springs 14.

The distance that the first base member 10 can be displaced along the tube axis P with respect to the second base member 20 is such that the small diameter of the through hole of the first base member 10 is on the flange surface 15f of the set screw 15. It is regulated by contacting. As shown in FIG. 6, the through hole 13 of the first base member 10 integrally has a cylindrical shaft portion. In the through hole 13, the opening tip inside the tube corresponds to the small diameter of the stepped pin 23, and the inner diameter corresponds to the outer diameter of the coil spring 14. The tube outer side of the through hole 13 has a step portion 13 d corresponding to the diameter of the head flange of the set screw 15. The set screw 15 can be screwed into an insertion hole provided in the small diameter portion of the stepped pin 23. The distance at which the first base member 10 can be displaced along the tube axis P with respect to the second base member 20 is regulated by the stepped portion 13d coming into contact with the flange surface of the set screw 15 as described above. . This distance is set such that the first rib 16b of the first base member 10 exceeds the height of the second peak portion 21b but does not exceed the height of the first peak portion 22. Accordingly, the angle at which the first base member 10 can rotate is in a range sandwiched between the first peak portions 22.

  Next, the example which changed the shape of the 1st peak part of the 2nd nozzle | cap | die member is demonstrated. 7 (a) and 7 (b) are perspective views of the second base member 20 ′ with the overhead angle changed, and FIG. 7 (c) is a front view. In the figure, the same parts as those of the second cap member 20 are denoted by the same reference numerals. As shown in FIG. 7, the second cap member 20 ′ is formed with a first peak portion 22 ′ and second peak portions 21 a and 21 b on the outer periphery 21. For convenience of explanation, in order to make the shape of the second base member 20 'easy to understand, in FIG. 7C, the first peak portion 22' is painted. In contrast to the second base member 20 in which the first peak portion 22 is arranged near one side of the screw hole 25a described above, the first peak portion 22 'of the second base member 20' is on the other side of the screw hole 25a. A reinforcing portion 22a having an arc shape so as to surround the screw hole 25a is formed integrally so as to have a width. One end of the reinforcing portion 22 a is connected to the first peak portion 22 ′, and the other end of the reinforcing portion 22 a is in a position that does not protrude from the outer periphery 21. The reinforcing portion 22a is a circular arc that protrudes so as to have a ridge line parallel to the tube axis P on the radially inner side toward the tube axis P opposite to the arc direction of the outer periphery 21. Accordingly, the reinforcing portion 22a has a function as a guide for the screw inserted into the screw hole 25a, and the first peak portion 22 of the second base member 20 ′ rather than the first peak portion 22 of the second base member 20. It is possible to increase the strength of ′ and to strengthen the connection with the connecting portion 4. Furthermore, the other end of the reinforcing portion 22a extends in an arc shape to a position just before the position protruding from the wall surface of the outer periphery 21 without reducing the rotation angle of the first base member 10. Thereby, the reinforcement part 22a exists in the position which is not directly engaged with the 1st nozzle | cap | die member 10 in the state which the 1st nozzle | cap | die member 10 and 2nd nozzle | cap | die member 20 'are engaging. On the other hand, when the first base member 10 is rotated with respect to the second base member 20, the reinforcing portion 22a does not hinder the rotation. Further, the first peak portion 22 'has a width corresponding to the reinforcing portion 22a as compared with the linear first peak portion 22 in the second base member 22, and the reinforcing portion 22a has an arc shape. The overall strength of the first peak portion 22 ′ to be engaged with the rib is increased, and when the first base member 10 is rotated, the first peak portion 22 ′ including the reinforcing portion 22 a is damaged or the engagement with the first rib is performed. It has the advantage that it does not come off.

  When the straight tube illumination device 1 equipped with the above-described rotary base 30 is installed in a socket part of a fluorescent lamp fixture, for example, when the light emitting element is realized by an LED element, the illumination direction is determined from the irradiation directivity of the LED element. It is specified on the side of the translucent cover 2. Moreover, if it mounts | wears with the lamp | ramp of a directly attached lower surface open type, the illumination direction will be a floor surface side. Here, for example, when the above-described lighting device is used for illuminating a display product or a signboard in a vending machine, the illumination light may not be irradiated in a desired direction depending on the position of the socket. In contrast, in the straight tube illumination device 1 of the present invention, the first base members 10 at both ends are attached to the light source unit via the second base member 20 so as to be rotatable. Therefore, when obtaining light irradiation in a desired direction for illumination with the above-described vending machine or signboard, the first base member 10 at both ends is rotated and fixed in advance to a desired rotation angle and then the socket. You can attach it to.

  Further, for example, when the straight tube illuminating device 1 in which the rotary base 30 is mounted on the rotatable socket portion is mounted, the straight tube illuminating device has a wider range than the rotation range of the rotatable socket portion. Can be illuminated with 1.

  Here, as in the above-described embodiment, the first peak portion 22 provided in the second cap member 20 is provided so as to be positioned on one side with respect to the surface including the tube axis, and is rotated by the first peak portion 22. By providing the first rib whose movement is restricted on a side different from the side where the first peak portion 22 is located, the rotation range of the first base member 10 can be about 180 degrees. Therefore, it is possible to provide a straight tube illumination device that is more versatile than the conventional one.

  The straight tube illuminating device 1 of the present invention is not limited to the above-described embodiment, and various modifications can be made to the technical scope described in the claims within the scope of the invention. Note that the above forms are included. For example, in the above description, the base of the straight tube illumination device has been described as the G13 type, but the present invention is not limited to this. For example, a base of “R17d”, “RX17d”, and “GX16t-5” may be used.

DESCRIPTION OF SYMBOLS 1 Straight pipe-type illuminating device 2 Translucent cover 3 Light-shielding cover 4 Connection part 10 1st nozzle | cap | die member 20, 20 '2nd nozzle | cap | die 30 Rotation | cap | die 41 Reference mark 11 Mark 11a Reference mark 12 Terminal 13 Through-hole 13d Step Part 14 Coil spring 15 Set screw 15f Flange surface 21 Outer periphery 21a, 21b Second peak part 22, 22 'First peak part 22a Reinforcement part 23 Stepped pin 24 Through hole 25 Screw 25a Screw hole 27 Through hole 16 Inner peripheral surface 16b 1st rib 16a 2nd rib 18 Planar terminal P Pipe axis

Claims (5)

A straight tube illuminating device comprising a rotary base that rotates the light source unit around the tube axis to change the irradiation direction,
The rotary base is
A first base member connected to a socket to which the straight tube illumination device is attached; and a second base member that is at least partially housed in the first base member;
The first base member has at least one rib on the inner peripheral surface,
The second base member has at least two crests formed on the outer periphery on one side when divided from a predetermined surface including the tube axis as seen from the tube axis outer side direction,
A straight tube illuminating device in which a range of relative rotation between the first base member and the second base member is defined by locking the rib by the mountain portion. The rib is disposed on a side different from the side on which the two peak portions are located.
The straight tube illumination device according to claim 1. A straight tube illuminating device comprising a rotary base that rotates the light source unit around the tube axis to change the irradiation direction,
The rotary base is
A first base member connected to a socket to which the straight tube illumination device is attached; and a second base member that is at least partially housed in the first base member;
The first base member includes a first rib, and a second rib whose end on the inner side of the tube in the tube axis direction is located on the outer side of the tube with respect to the end of the first rib.
The second base member has a plurality of first peaks on the outer periphery and a plurality of second peaks formed shorter than the first peaks.
The first peak portion is provided in a semicircle on a surface orthogonal to the major axis direction of the second base member,
The first rib is on a semicircle side different from the semicircle provided with the one peak when the second base member is accommodated in the first base member.
A straight tube illumination device characterized by the above. The second base member is attached to the first base member so as to be extendable in the tube axis direction by an elastic member, and in the most extended state, the first base member rotates with respect to the second base member with a predetermined rotation. The first rib and the first peak portion are configured to be locked so as to be regulated within an angle range.
The straight tube illumination device according to claim 3. The second base member is attached to the first base member so as to be extensible in the tube axis direction by an elastic member, and in the most extended state, the first rib exceeds the second peak portion.
The straight tube illumination device according to claim 3.

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