JP2011040286A - Lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting system having simple construction for actualizing smooth insertion of lamp pins into lamp pin fixing holes in the bottom face of the recess of a socket while avoiding great deviation of the rotational axis of a lamp when rotated in an instable attitude so as to be mounted into the socket. <P>SOLUTION: The lighting system includes the lamp having a pair of lamp pins protruded on the front end face of the base, and the socket having the pair of lamp pin fixing holes with terminals into which the lamp pins are rotationally inserted to be electrically connected to the socket. When the lamp pins are electrically connected via the lamp pin fixing holes to the socket, the lamp pins are rotated on the bottom face of the socket with the rotation of the lamp relative to the socket to find the lamp pin fixing holes while avoiding great deviation of the rotational axis of the lamp when rotated being guided around the base of the rotating lamp by the inner wall face of the bottomed approximately cylindrical recess. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an illuminating device, and in particular, an illumination including a lamp having a substantially cylindrical base portion and a socket having a bottomed substantially cylindrical concave portion into which the base portion can be fitted to detachably mount the lamp. Relates to the device.

  From a lamp having a substantially cylindrical base portion and a socket having a bottomed substantially cylindrical concave portion (hereinafter sometimes simply referred to as “recess portion”) into which the base portion can be fitted in order to detachably mount the lamp. In the lighting device, the method of mounting the lamp in the socket is to insert a pair of lamp pins protruding from the lamp base into a pair of lamp pin fixing holes provided in the bottom of the recess of the socket, and then connect the lamp to the socket. A method (so-called twist lock type) in which the lamp pin is rotated by twisting in a direction parallel to the bottom surface and the lamp pin is brought into contact with the socket terminal and locked is widely used.

  In such a method, in order to mount the lamp in the socket, it is necessary to perform an operation (so-called lamp pin positioning) for aligning the lamp pin protruding from the tip surface of the base portion with the position overlapping the lamp pin fixing hole. is there. As such a positioning method, conventionally, the lamp is provided on the bottom surface of the recess by rotating the lamp parallel to the bottom surface of the concave portion of the socket while pressing the lamp pin protruding from the base portion of the lamp against the bottom surface of the concave portion of the socket. A method of searching for a lamp pin fixing hole has been used. According to this method, when the lamp pin overlaps the position of the lamp pin fixing hole, the lamp pin pressed against the bottom surface of the concave portion is inserted into the lamp pin fixing hole, and mounting of the lamp in the socket is realized. become.

  In addition, in an illumination device of a type in which a lamp is mounted on a socket using such a method, there is a device added with a device for smoothly positioning a lamp pin. For example, in Patent Document 1, an insertion groove for inserting a locking convex portion of a socket body into which a lamp pin is inserted is inserted into an inner peripheral portion of a fitting concave portion of a socket, and the locking convex portion is continuously provided in the circumferential direction. There is disclosed a method of providing a ring including a guide groove for guiding and a positioning groove formed on the ring and elastically locked by the elastic convex portion at a position where the locking convex portion is guided by the guide groove (Patent Document). 1).

Japanese Utility Model Publication No. 6-19164

  By the way, the lighting device is often mounted at a position where the socket is difficult to see directly such as near the ceiling. In such a case, when the lamp is to be mounted in the socket for lamp replacement or the like, the lamp pin is inserted into the lamp pin fixing hole while rotating while being applied to the bottom surface of the bottomed substantially cylindrical recess of the socket. When performing an operation, it is frustrated in an unstable posture such as looking up at the ceiling while reaching up.

  However, in the conventional lighting device, since the height (depth) of the recess of the socket is shorter than the length of the lamp pin, when operating in such an unstable posture, the lamp pin is applied to the bottom of the recess of the socket. It has been difficult to rotate the lamp parallel to the bottom surface, that is, rotate the lamp so that its axis of rotation is in the vertical direction. For this reason, the rotating shaft of the lamp is greatly shaken, and it is difficult to smoothly insert the lamp pin into the lamp pin fixing hole on the bottom surface of the concave portion of the socket.

  FIG. 5 is a conceptual diagram showing an example of the shape of a socket and a lamp in such a conventional lighting device. This figure shows the shape of the socket and the lamp in a vertical section in which each of the lamp and the lamp is cut substantially at the center. However, since this figure is a conceptual diagram showing the relationship between the shapes of both the socket and the lamp, the illustration of the inner shape of the socket and the lamp (for example, the lamp pin fixing hole of the socket) is omitted. In the drawing, the cross section of the socket is indicated by a diagonal line rising to the right, and the cross section of the lamp is indicated by a diagonal line rising to the left.

  As shown in FIG. 5A, the height (depth) L1 ′ of the recess of the socket 0520 of this example is shorter than the length L2 ′ of the lamp pin 0512 of the lamp 0510. For this reason, as shown in (b), even if an attempt is made to rotate the lamp pin parallel to the bottom surface while pressing the lamp pin against the bottom surface of the concave portion of the socket, the posture of the person performing the operation is unstable and the lamp tilts. The rotation axis (shown by a broken line) is greatly displaced from the vertical direction. As a result, it becomes difficult to smoothly insert the lamp pin into the lamp pin fixing hole on the bottom surface of the concave portion of the socket.

  Until now, there has been no solution to solve such a problem so that the lamp pin can be smoothly inserted into the lamp pin fixing hole on the bottom surface of the concave portion of the socket. In the above-mentioned patent document 1, although the device for smoothly positioning the lamp pin is devised, as a method therefor, a ring including an insertion groove and a guide groove on the inner peripheral portion of the fitting recess of the socket, and positioning There is a problem that a new member or configuration such as a groove needs to be provided, and the structure becomes complicated.

  Therefore, the problem to be solved by the present invention is that even when the lamp must be rotated and mounted in the socket in an unstable posture, the rotation axis of the lamp is not greatly shaken, and the lamp pin is smoothly inserted into the socket. An object of the present invention is to provide a lighting device that can be inserted into a lamp pin fixing hole at the bottom of the recess with a simple structure.

  In order to solve the above problems, a first invention includes a lamp having a substantially cylindrical base portion, and a bottomed substantially cylindrical concave portion into which the base portion can be fitted to detachably mount the lamp. A lamp having a pair of lamp pins projecting from a front end surface of a cap portion, and the socket inserts and rotates the lamp pins to electrically connect the lamp pins to the socket. A pair of lamp pin fixing holes with terminals to be connected to each other and rotating the lamp relative to the socket to electrically connect the lamp pin to the socket at the lamp pin fixing hole. When rotating around the bottom of the lamp pin fixing hole by rotating it on the bottom, the rotating shaft of the rotating lamp is guided around the base of the rotating lamp by the inner wall surface of the bottomed substantially cylindrical recess. Providing configured illumination device so as not Kikubure.

  Moreover, 2nd invention provides the socket as described in 1st invention.

  According to the present invention, even when the lamp needs to be rotated and mounted in the socket in an unstable posture, the lamp rotating shaft does not shake greatly, and the lamp pin can be smoothly fixed to the bottom of the concave portion of the socket. It is possible to provide an illumination device that can be inserted into the hole with a simple structure.

The perspective view which shows an example of the shape of the illuminating device of Example 1. FIG. The figure for demonstrating the relationship between the lamp cap part and the recessed part of a socket in the illuminating device of Example 1. FIG. The figure which shows an example of the shape of the lamp | ramp which comprises the illuminating device of Example 1. FIG. The figure which shows an example of the shape of the socket which comprises the illuminating device of Example 1. FIG. Conceptual diagram showing an example of the shape of a socket and a lamp in a conventional lighting device

0100, 0200 Lighting device 0110, 0210 Lamp 0111, 0211 Base part 0112, 0212 Lamp pin 0120, 0220 Socket 0121 Bottom substantially cylindrical recess L1 Height (depth) of bottom substantially cylindrical recess
L2 Length of the lamp pin L3 Inner diameter L4 of the bottomed substantially cylindrical recess L4 Outer diameter of the cap

  Examples of the present invention will be described below. In addition, this invention is not limited to this Example at all, and can be implemented in various modes without departing from the gist thereof.

  <Overview>

  The illumination device according to the present embodiment includes a lamp having a substantially cylindrical base portion and a socket having a bottomed substantially cylindrical concave portion into which the base portion can be fitted in order to detachably mount the lamp. When rotating the lamp with respect to the socket and rotating the lamp pin on the bottom of the socket to search the lamp pin fixing hole, the periphery of the base of the rotating lamp is the inner wall surface of the bottomed substantially cylindrical recess. It is characterized in that it is configured so that the rotation axis of the lamp rotating while being guided by the lens is not greatly shaken.

  <Configuration>

    (General lighting equipment)

  The illuminating device of the present embodiment includes a lamp having a substantially cylindrical base portion and a socket having a bottomed substantially cylindrical concave portion into which the base portion can be fitted in order to detachably mount the lamp.

  FIG. 1 is a perspective view showing an example of the shape of the illumination device of the present embodiment. As shown in the figure, the lighting device 0100 according to the present embodiment includes a lamp 0110 and a socket 0120. When the lamp is mounted on the socket for use as a lighting device, the lamp is moved in the direction of arrow A, and the lamp pin 0112 projecting from the lamp base 0111 is inserted into the bottomed substantially cylindrical recess 0121 of the socket. Then, it is rotated in a direction (arrow B direction or the opposite direction) parallel to the bottom surface while being pressed against the bottom surface (not shown) of the recess.

  Here, the illumination device of the present invention is different from the conventional one in that the height (depth) of the concave portion of the socket is configured to be longer than the length of the lamp pin. Further, the outer diameter of the base portion is almost equal to the inner diameter of the socket recess and slightly shorter than that. Therefore, when the lamp pin is rotated while being pressed against the bottom surface of the recess of the socket, the side surface near the tip of the base part and the inner wall surface near the top end of the socket recess partly overlap, and in this state it fits almost exactly. The lamp will rotate. For this reason, the insertion angle of the base part is regulated by the inner wall surface of the socket recess, and the rotation axis of the lamp is not greatly shaken from the vertical direction.

  FIG. 2 is a view for explaining the relationship between the lamp cap portion and the concave portion of the socket in the lighting device of the present embodiment, and corresponds to a cross-sectional view taken along the line XX of the socket and the lamp shown in FIG. However, since it is only a diagram for explaining the relationship between the lamp cap portion and the recess of the socket, the shape of the socket and the lamp shown in Fig. 1 does not necessarily match. The lamp pin is inserted into the substantially cylindrical recess, and the lamp pin is in contact with the bottom of the recess of the socket). Also in this figure, the cross section of the socket is indicated by a diagonal line rising to the right, and the cross section of the lamp is indicated by a diagonal line rising to the left. This figure shows a state immediately after the lamp pin is inserted into the bottomed substantially cylindrical recess of the socket, and has not yet reached the position where the lamp pin overlaps the lamp pin fixing hole. As shown in this figure, in the lighting device 0200 of the present embodiment, the height (depth) L1 of the recess of the socket 0220 is longer than the length L2 of the lamp pin 0212 of the lamp 0210. As a result, when the lamp pin is inserted into the substantially cylindrical bottomed concave portion of the socket, a part (tip portion) of the socket base portion 0211 is also inserted into the concave portion.

  Also, the inner diameter L3 of the socket recess is approximately equal to and slightly longer than the outer diameter L4 of the lamp cap. In other words, when the lamp cap portion is inserted into the socket recess, the cap portion fits almost exactly into the socket recess.

  Since the relationship between the lamp cap and the recess of the socket is as described above, the lamp pin is inserted into the bottomed substantially cylindrical recess of the socket, and the lamp is rotated parallel to the bottom with the lamp pin applied to the bottom. In this case, since the front end surface of the lamp cap portion that is substantially in contact with the inner wall surface of the socket recess is regulated by the inner wall surface, the lamp does not tilt greatly, and as a result, the rotation axis of the lamp does not shake greatly. .

  Therefore, the lamp pin can be rotated while keeping the lamp pin in contact with the bottom surface of the recess, and as a result, when the lamp pin overlaps the position of the lamp pin fixing hole, it is pressed against the bottom surface. The lamp pin in the pressed state is inserted into the lamp pin fixing hole.

    (lamp)

  As the lamp of this embodiment, a known commercial product or the like can be used.

        (Example of lamp dimensions and shape)

  FIG. 3 is a diagram illustrating an example of the shape of a lamp constituting the illumination device of the present embodiment. A lamp 0310 shown in the figure is an example of a commercially available “Master Color (registered trademark) CDM-Rm” manufactured by Philips, and a base type is GX10 (so-called twist lock type). The outer diameter L4 of the lamp cap portion 0311 is 22.5 mm, the length L2 of the lamp pin 0312 is 6.4 mm, and the distance between the centers of the pair of lamp pins is 10.0 mm. The diameter of the front surface of the lamp is about 50 mm, and the length from the front surface of the lamp to the tip of the lamp pin is about 60 mm.

  The lamp constituting the illumination device of the present embodiment can be applied to various shapes and sizes as long as it is of the above mounting type. In any case, the outer diameter of the base of the lamp, the length of the lamp pin, and the distance between the centers of the pair of lamp pins are almost determined by the standard according to the rated voltage. Therefore, the configuration of the lighting device of the present invention is realized by defining the shape and dimensions of the socket described below in accordance with the standard of the lamp to be configured.

    (socket)

  As described above, the shape and dimensions of the socket according to the present embodiment are defined in accordance with the standard of the lamp that is a configuration target of the lighting device.

        (Example of socket dimensions and shape)

  FIG. 4 is a diagram illustrating an example of the shape of a socket that configures the lighting device of the present embodiment. The socket 0420 shown in this figure is an example in which the shape and dimensions thereof are defined in accordance with the lamp standard shown in FIG. Specifically, the inner diameter L3 of the bottomed substantially cylindrical recess 0421 is 22.8 mm, and the height (depth) L1 of the recess is 12.2 mm. The outer diameter of the socket is about 32 mm, and the height of the socket is about 24 mm. In other words, the height (depth) of the recess (12.2 mm) is configured to be longer than the length of the lamp pin (6.4 mm), and the inner diameter (22.8 mm) of the bottomed substantially cylindrical recess is the base of the lamp. The outer diameter (22.5 mm) of the portion is approximately equal to and slightly longer than that.

  Therefore, when the lamp shown in FIG. 3 is installed in the socket shown in FIG. 4, the lamp pin is inserted into the bottomed substantially cylindrical recess of the socket by the configuration described with reference to FIG. When the lamp is rotated in parallel with the bottom surface while being applied to the bottom surface, the tip surface of the lamp base portion that is substantially in contact with the inner wall surface of the socket recess is regulated by the inner wall surface, so that the lamp tilts greatly. As a result, it is possible to prevent the rotation axis of the lamp from greatly shaking.

  Other configurations of the socket are the same as those of a known socket of the same mounting method.

  That is, as shown in FIG. 4, the bottom 0422 of the bottomed substantially cylindrical concave portion is provided with a pair of lamp pin fixing holes 0423, and the lamp pin fixing holes are provided inside the lamp pin fixing holes. Is connected to the socket (the terminal inside the lamp pin fixing hole on the right side of the figure does not appear in the figure). In the example of FIG. 4, the terminal is a leaf spring, and each of the pair of leaf springs is held in a state of being biased toward the center direction of the socket bottom surface. When the lamp is mounted in the socket, the lamp pin is inserted into the bottomed substantially cylindrical recess of the socket, and the lamp is rotated in parallel with the bottom surface with the lamp pin applied to the bottom surface. At this time, since the front end surface of the base portion of the lamp is regulated by the inner wall surface of the socket recess, if the lamp is rotated, the lamp can be rotated without being largely deviated from the vertical direction. One end of the lamp pin fixing hole is opened slightly wider than the tip of the lamp pin, and the other part is narrower than the tip of the lamp pin. Therefore, as long as the lamp pin does not overlap with one end of the lamp pin fixing hole, the lamp pin is not inserted into the hole, and the lamp pin is opened slightly wider than the tip of the lamp pin. Only when it overlaps the position of one end of the hole, it is inserted into the lamp pin fixing hole.

  The portion other than the tip of the lamp pin is slightly thinner than the tip. In a state where the lamp pin is inserted into the lamp pin fixing hole, a portion slightly narrower than the tip is positioned so as to overlap the opening on the bottom surface of the lamp pin fixing hole. For this reason, once the lamp pin is inserted into the lamp pin fixing hole, the lamp pin becomes movable in the lamp pin fixing hole. Therefore, by rotating the lamp in this state, the lamp pin moves along the terminal while being urged toward the center of the socket by the terminal in the lamp pin fixing hole, and hits the other end of the lamp pin fixing hole. No more can be moved. In this case, since the tip of the lamp pin is biased in the central direction by the terminal as described above, the lamp pin does not return in the reverse direction in the lamp pin fixing hole unless a force for rotating in the opposite direction is applied from the outside. In other words, the lamp pin is kept locked in contact with the terminal in the lamp pin fixing hole.

  In FIG. 4, an opening 0425 drilled in the bottom surface is a screw hole for fixing the socket to the ceiling or the like. In addition, a lead wire 0426 is connected to each of the pair of terminals.

    (Another example of dimensions and shape of lamp and socket)

  As described above, in the lighting device of this embodiment, the shape and dimensions of the socket can be designed in various ways in accordance with the use of lamps having various shapes and dimensions.

  As another example of the size and shape of the lamp and socket, in the case of “Master Color (registered trademark) CDM-R111” manufactured by Philips, which is a commercial product for an example of a larger size and shape in which the lamp has an aluminum reflector. Will be described. The lamp has a base type of GX8.5 (so-called twist lock type). The outer diameter of the lamp base of the lamp is 25.0 mm, the length of the lamp pin is 7.7 mm, and the distance between the centers of the pair of lamp pins is 8.5 mm. The reflector has a diameter of about 111 mm, and the length from the front of the lamp to the tip of the lamp pin is about 87 mm.

  Therefore, as an example of the size and shape of the socket corresponding to this, it is conceivable that the bottomed substantially cylindrical recess has an inner diameter of 26.0 mm and the height (depth) of the recess is 16.8 mm. The outer diameter of the socket is about 32 mm, and the height of the socket is about 29 mm. Also in this example, the height (depth) of the recess (16.8 mm) is longer than the length of the lamp pin (7.7 mm), and the inner diameter (26.0 mm) of the bottomed substantially cylindrical recess is The outer diameter of the base part (25.0 mm) is approximately equal to and slightly longer than that.

  Therefore, also in this example, when the lamp pin is inserted into the bottomed substantially cylindrical recess of the socket, and the lamp is rotated parallel to the bottom surface with the lamp pin applied to the bottom surface, the inner wall surface of the socket recess is almost Since the front end surface of the cap portion of the lamp in contact is regulated by the inner wall surface, the lamp does not tilt greatly, and as a result, the rotation axis of the lamp can be prevented from being greatly shaken.

  <Effect>

  According to the invention of the present embodiment, even if the lamp must be rotated and mounted in the socket in an unstable posture, the lamp rotation shaft does not shake greatly, and the lamp pin can be smoothly inserted into the bottom of the recess of the socket. It is possible to provide an illuminating device that can be inserted into the lamp pin fixing hole with a simple structure.

Claims (2)

A lighting device comprising: a lamp having a substantially cylindrical base portion; and a socket having a bottomed substantially cylindrical concave portion into which the base portion can be fitted to detachably mount the lamp,
The lamp has a pair of lamp pins projecting from the tip surface of the base part,
The socket is
A pair of lamp pin fixing holes provided with terminals for electrically connecting the lamp pin to the socket by inserting and rotating the lamp pin;
In order to electrically connect the lamp pin to the socket at the lamp pin fixing hole, the lamp is rotated with respect to the socket by rotating the lamp with respect to the socket so that the lamp pin fixing hole is rotated when the lamp pin fixing hole is searched. An illuminating device configured such that a rotation axis of a lamp rotating around a base portion guided by an inner wall surface of a bottomed substantially cylindrical concave portion is not greatly shaken.   The socket according to claim 1.

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