JP2015025520A - Hinge and desk lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hinge that can prevent a cord from being broken without increasing the number of components.SOLUTION: A hinge 5 comprises a first hinge body 11 and a second hinge body 12. A cord release part 22 for releasing a cord routed to the inside of a connecting part 17 via the inside of a right hinge part 18 from the inside of the first hinge body 11 is provided between the connecting part 17 and the right hinge part 18 of the second hinge body 12.

Description

  The present invention relates to a hinge and a desk lamp.

  Conventionally, a desk lamp having a movable arm is known. In the table lamp described in Patent Document 1, the lamp unit and the main body unit are connected by a movable arm. Here, the movable arm and the lamp part, and the movable arm and the main body part are connected by a free hinge (hinge), respectively. By this universal hinge, the movable arm is movable with respect to the lamp unit and the main body unit. Moreover, the cord for connecting a lamp part and a main-body part is wired inside the movable arm and the universal hinge.

  The above-mentioned universal hinge is interposed between two coupled members (movable arm and lamp unit, movable arm and main body unit) in which a cord is wired between each other, and the angle between these coupled members is arbitrarily set. Move and fix. FIG. 6 is an exploded perspective view showing a schematic configuration of a conventional universal hinge. As shown in FIG. 6, the universal hinge 100 includes a substantially cylindrical central hinge main body 101 disposed on one coupled member (movable arm) and the other coupled member (lamp unit or main body unit). And a right hinge main body 102 and a left hinge main body 103 that slide on the substantially cylindrical outer surface of the central hinge main body 101 and sandwich both ends thereof. The centers of these hinge main bodies 101, 102, and 103 are rotatably coupled by screws 104a and 104b. Further, the central hinge main body 101 is formed with a cord introduction portion 105 for introducing a cord (not shown). A cord guide 106 that covers the cord introduction unit 105 and guides the introduction of the cord is rotatably disposed on the central hinge main body 101. According to this universal hinge 100, since the cord is inserted through the cord introduction portion 105 formed in the central hinge main body 101, the cords wired inside are connected even if the angle between the coupled members is frequently changed. Disconnection can be prevented. Further, since the cord introduction unit 105 is covered with the cord guide 106, it is possible to prevent the cord from being exposed from the cord introduction unit 105.

Japanese Patent No. 4296777

  Here, in the universal hinge 100, since the cord is to be prevented from being disconnected by inserting the cord through the cord introduction portion 105 formed in the central hinge main body 101, the cord is disposed inside the central hinge main body 101. If the coil spring 107 and the cord introduction part 105 overlap, the coil spring 107 and the cord may come into contact with each other and may be disconnected. Therefore, since it is necessary to prevent the coil spring 107 and the cord introduction part 105 from overlapping, the axial length W of the central hinge main body 101 is longer than the axial length of the coil spring 107. Since the length W1 of the portion 108 not formed and the length W2 of the cord introduction portion 105 are combined, there is a problem that the universal hinge 100 becomes large and looks bad. Further, since the cord guide 106 is provided to prevent the cord from being exposed from the cord introducing portion 105, there is a problem that the number of parts is large.

  An object of the present invention is to make it possible to prevent disconnection of a cord without increasing the number of parts.

  The hinge of the first invention is a hinge that is interposed between two coupled members in which a cord is wired between each other and arbitrarily rotates and fixes the angle between the two coupled members, A first hinge body connected to one of the members to be coupled; a connecting portion connected to the other member to be coupled; and a first hinge portion that slides between the first hinge body and sandwiches both ends thereof And a second hinge body, a biasing member disposed inside the first hinge body, the first hinge body, and the second hinge body are rotatable. A coupling member to be coupled, and the connection portion is interposed between the connection portion and the first hinge portion or between the connection portion and the second hinge portion via the inside thereof. There is a cord relief part to escape the cord wired inside And wherein the Rukoto.

  In the present invention, a cord escape portion for escaping the cord is provided between the connection portion and the first hinge portion or between the connection portion and the second hinge portion of the second hinge body. . For this reason, by laying the cord inside the cord relief portion, the urging member disposed inside the first hinge body and the cord come into contact with each other, and the cord is prevented from being disconnected.

  In the present invention, as in the prior art, the first hinge main body is not provided with an opening for introducing a cord, which is required not to overlap with the urging member. For this reason, since it is not necessary to make the length of the 1st hinge main body the axial direction more than the length of the axial direction of a biasing member, a hinge does not become large and it looks good.

  In the present invention, since the cord is covered with the cord relief portion, the cord is prevented from being exposed from the hinge. Therefore, unlike the conventional case, there is no need to provide a member for preventing the cord from being exposed from the hinge, so that the number of parts does not increase.

  Thus, according to the present invention, it is possible to prevent the disconnection of the cord without increasing the number of parts.

  The hinge of the second invention is characterized in that, in the hinge of the first invention, a restriction member for restricting the rotation of the second hinge body is provided in the first hinge body.

  In the present invention, the first hinge body is provided with a regulating member that regulates the rotation of the second hinge body. Therefore, the rotation range of the second hinge body is restricted by the restriction member, and the amount of bending of the cord is suppressed. Thereby, the disconnection of the cord can be prevented more reliably.

  The hinge of the third invention is the hinge of the first or second invention, wherein the cord relief portion is tapered toward the connection portion.

  In the present invention, the cord relief portion is tapered toward the connection portion. Therefore, it is easy to guide the cord from the inside of the first hinge portion or the second hinge portion to the inside of the connecting portion through the inside of the cord escape portion, and the design of the hinge is excellent.

  A desk lamp of a fourth invention includes the hinge of any one of the first to third inventions.

  According to the desk lamp provided with the hinge of the first invention, it is possible to prevent the cord from being disconnected without increasing the number of parts. In addition, according to the table lamp provided with the hinge of the second invention, the disconnection of the cord can be more reliably prevented. In addition, according to the table lamp provided with the hinge of the third invention, it is easy to guide the cord from the inside of the first hinge portion or the second hinge portion to the inside of the connecting portion through the inside of the cord relief portion. Excellent hinge design.

  According to the present invention, it is possible to prevent the cord from being disconnected without increasing the number of parts.

1 is a perspective view of a table lamp according to an embodiment of the present invention. It is a perspective view which shows schematic structure of a hinge. It is a disassembled perspective view which shows schematic structure of a hinge. It is a front view which shows schematic structure of a hinge. It is a disassembled front view which shows schematic structure of a hinge. It is a disassembled perspective view which shows schematic structure of the conventional universal hinge.

  Hereinafter, embodiments of the present invention will be described. FIG. 1 is a perspective view of a table lamp according to an embodiment of the present invention. The desk lamp 1 includes a main body 2 (a member to be coupled), an illumination unit 3 (a member to be coupled), an arm 4 (a member to be coupled), and two hinges 5 and 6 and is mainly placed on a desk. It is a so-called desk light used.

  The main body 2 has a housing made of a substantially rectangular parallelepiped resin. A substrate is disposed inside the housing of the main body 2, and various electronic components are disposed on the substrate. The main body 2 is provided with a female connector 7 to which an AC adapter (not shown) is connected, and power is supplied to the desk lamp 1 from a household outlet via the AC adapter. The illumination unit 3 emits light and has a housing made of a substantially rectangular parallelepiped resin. An LED (Light Emitting Diode) (not shown) is disposed inside the housing of the illumination unit 3. A light-transmitting member is disposed on the lower surface portion of the casing of the illuminating unit 3 so as to transmit light emitted from the LED.

  The arm 4 is a cylindrical tube made of metal such as iron, for example, and is connected to the main body 2 and the illumination unit 3 via hinges 5 and 6, respectively. The arm 4 can be rotated in the direction of the arrow shown in FIG. Moreover, the illumination part 3 can be rotated with respect to the arm 4 in the arrow direction shown in FIG. A cord 8 for connecting the main body 2 and the illumination unit 3 is wired inside the arm 4.

  Next, the hinges 5 and 6 will be described. The hinge 5 is interposed between the main body 2 and the arm 4 where the cord 8 is wired between them, and arbitrarily rotates and fixes the angle between the main body 2 and the arm 4. The hinge 6 is interposed between the illumination unit 3 and the arm 4 and arbitrarily rotates and fixes the angle between the illumination unit 3 and the arm 4. Since the hinges 5 and 6 have the same configuration, the hinge 5 will be described below. As shown in FIGS. 2 to 5, the hinge 5 includes a first hinge body 11, a second hinge body 12, a coil spring 13 (biasing member), and caps 14 and 15.

  The first hinge body 11 is connected to the body portion 2. The upper portion of the first hinge body 11 has an arc shape, and the second hinge body 12 rotates relative to the first hinge body 11 along the arc-shaped portion. The arcuate portion of the first hinge body 11 is provided with a stopper 16 (regulation member) that restricts the rotation of the second hinge body 12. The stopper 16 protrudes outward in the radial direction. When the stopper 16 and the second hinge body 12 come into contact with each other, the rotation range of the second hinge body 12 is restricted. The interior of the first hinge body 11 is hollow, and a coil spring 13 is disposed in the hollow portion 11a.

  The second hinge body 12 is connected to the arm 4. The second hinge body 12 includes a connecting portion 17, a right hinge portion 18 (first hinge portion), and a left hinge portion 19 (second hinge portion). The connection portion 17 is for connecting the arm 4 to the second hinge body 12. The connecting portion 17 is provided with a hole 17a for inserting the arm 4, and the arm 4 inserted through the hole 17a and the connecting portion 17 are fixed with a bolt (not shown). Thereby, the arm 4 and the 2nd hinge main body 12 are connected.

  The right hinge portion 18 and the left hinge portion 19 are formed so as to slide with the first hinge body 11 and sandwich both ends thereof. The right hinge portion 18 and the left hinge portion 19 are each formed in a cylindrical shape and have hollow portions 18a and 19a. Further, the right hinge portion 18 is formed with an opening 18b continuous with the hollow portion 18a into which a rotation stopper 21 of the cap 14 described later is fitted.

  The cap 14 is fitted into the hollow portion 18 a of the right hinge portion 18. The cap 15 is fitted into the hollow portion 19 a of the left hinge portion 19. The caps 14 and 15 cover the right hinge portion 18 and the left hinge portion 19 from both sides, so that the inside of the hinge 5 cannot be seen from the outside. The cap 15 is provided with a male screw 20a (a part of the coupling member) extending in the axial direction. The cap 14 is provided with a female screw 20b (a part of the coupling member) that is screwed into the male screw 20a. When the male screw 20a and the female screw 20b are screwed together, the first hinge body 11 and the second hinge body 12 are rotatably coupled. Further, the cap 14 is provided with a rotation stopper 21 that constitutes a part of a cord relief portion 22 described later. The cap 14 rotates together with the cap 15 when the cap 15 is rotated and the male screw 20a of the cap 15 is screwed into the female screw 20b of the cap 14 by fitting the stopper 21 into the opening 18b ( Co-rotation) is prevented.

  The coil spring 13 is disposed in the hollow portion 11a inside the first hinge body 11 as described above. The coil spring 13 urges and rotates the first hinge body 11 and the second hinge body 12 and is formed of a spring wire material such as stainless steel, for example.

  Here, in the present embodiment, a cord relief portion 22 for allowing the cord 8 to escape is provided between the connection portion 17 and the right hinge portion 18 of the second hinge body 12. The cord relief portion 22 is a portion that tapers from the right hinge portion 18 toward the connection portion 17, and the width thereof becomes narrower from the right hinge portion 18 toward the connection portion 17. As shown in FIG. 4, the cord 8 extends from the hollow portion 11 a inside the first hinge body 11 to the inside of the connecting portion 17 through the hollow portion 18 a inside the right hinge portion 18 and the inside of the cord relief portion 22. Wired.

  Further, in order to make the second hinge main body 12 line-symmetric, a dummy portion 23 is provided at a position symmetrical with the cord relief portion 22, that is, between the connection portion 17 and the left hinge portion 19. Since the dummy portion 23 has a shape symmetrical with the cord relief portion 22, like the cord relief portion 22, the dummy portion 23 is tapered from the left hinge portion 19 toward the connection portion 17, and from the left hinge portion 19 to the connection portion. As it goes to 17, the width becomes narrower.

  As shown in FIGS. 3 and 5, when assembling the hinge 5, first, the coil spring 13 is disposed in the hollow portion 11 a of the first hinge body 11. Next, the first hinge body 11 and the second hinge body 12 are assembled so that the first hinge body 11 is sandwiched between the right hinge part 18 and the left hinge part 19 from both sides. Next, the cord 8 is wired from the hollow portion 11 a inside the first hinge body 11 to the inside of the connecting portion 17 through the hollow portion 18 a inside the right hinge portion 18 and the inside of the cord relief portion 22. Next, the cap 14 is fitted into the hollow portion 18 a of the right hinge portion 18. Then, the cap 15 is disposed in the hollow portion 19a of the left hinge portion 19, and the cap 15 is rotated so that the male screw 20a and the female screw 20b are screwed together. When the male screw 20 a and the female screw 20 b are screwed together, the cap 15 is finally fitted into the hollow portion 19 a of the left hinge portion 19. In the assembled hinge 5, the second hinge body 12 is rotatable with respect to the first hinge body 11 about the axial direction.

  In the hinge 5 described above, the cord escape portion 22 for allowing the cord 8 to escape is provided between the connection portion 17 and the right hinge portion 18 of the second hinge body 12. For this reason, by wiring the cord 8 inside the cord relief portion 22, the coil spring 13 disposed inside the first hinge body 11 and the cord 8 are in contact with each other, and the cord 8 is prevented from being disconnected. (See FIG. 4).

  Moreover, in this embodiment, the opening for introducing the code | cord | chord 8 which needs to be made not to overlap with the coil spring 13 is not provided in the 1st hinge main body 11 like the past. For this reason, since it is not necessary to make the length of the 1st hinge main body 11 the axial direction more than the length of the axial direction of the coil spring 13, the hinge 5 does not become large and it looks good.

  Further, in the present embodiment, the cord 8 is covered with the cord relief portion 22, so that the cord 8 is prevented from being exposed from the hinge 5. Therefore, it is not necessary to provide a member for preventing the cord 8 from being exposed from the hinge 5 as in the prior art, so that the number of parts does not increase. Thus, according to the present embodiment, it is possible to prevent the cord 8 from being disconnected without increasing the number of components.

  In the present embodiment, the first hinge body 11 is provided with a stopper 16 that restricts the rotation of the second hinge body 12. Accordingly, the rotation range of the second hinge body 12 is restricted by the stopper 16, and the amount of bending of the cord 8 is suppressed. Thereby, disconnection of the cord 8 can be more reliably prevented.

  Further, in the present embodiment, the cord relief portion 22 is tapered from the right hinge portion 18 toward the connection portion 17. Accordingly, it is easy to guide the cord from the inside of the right hinge portion 18 to the inside of the connecting portion 17 via the cord relief portion 22, and the design of the hinge 5 is excellent.

  As mentioned above, although embodiment of this invention was described, the form which can apply this invention is not restricted to the above-mentioned embodiment, As suitably illustrated in the range which does not deviate from the meaning of this invention so that it may illustrate below. It is possible to make changes.

  In the above-described embodiment, the cord escape portion 22 is provided between the connection portion 17 and the right hinge portion 18, but the present invention is not limited to this, and the cord escape portion is connected to the connection portion 17 and the left hinge portion 19. It may be provided between. In the above-described embodiment, the dummy portion 23 that is line-symmetric with the cord relief portion 22 is provided, so that the dummy portion 23 can be used as a cord relief portion. That is, if the cord 8 is wired from the hollow portion 11a inside the first hinge body 11 to the inside of the connecting portion 17 through the hollow portion 19a inside the left hinge portion 19 and the inside of the dummy portion 23, the dummy portion 23 becomes It becomes a code escape part. Note that the dummy portion is not provided even if the cord relief portion is provided between the connection portion 17 and the right hinge portion 18 or between the connection portion 17 and the left hinge portion 19. Also good.

  In the above-described embodiment, since there is one cord 8, the cord relief portion 22 is provided between the connection portion 17 and the right hinge portion 18, and a dummy is provided between the connection portion 17 and the left hinge portion 19. A portion 23 is provided. For example, when there are two cords connecting the main body 2 and the illumination unit 3, one cord is wired to the connection unit 17 through the inside of the cord release unit 22, and the other cord is a dummy. By wiring to the connection part 17 via the inside of the part 23, the dummy part 23 can be used as the second cord escape part. That is, a cord relief portion may be provided both between the connection portion 17 and the right hinge portion 18 and between the connection portion 17 and the left hinge portion 19.

  In the above-described embodiment, the cord relief portion 22 is tapered from the right hinge portion 18 toward the connection portion 17, but is not limited thereto, and may not be tapered. For example, it may be curved.

  In the above-mentioned embodiment, although the case where the hinge 5 was used for the desk lamp 1 was demonstrated, it is not restricted to this, For example, the hinge 5 can also be used for electric appliances, such as illumination which has an arm.

1 Desk lamp 2 Body (Coupled member)
3 Illumination part (coupled member)
4 Arm (Coupled member)
5, 6 Hinge 8 Code 11 First hinge body 12 Second hinge body 13 Coil spring (biasing member)
16 Stopper (Regulator)
17 Connecting part 18 Right hinge part (first hinge part)
19 Left hinge (second hinge)
20a Male thread (part of coupling member)
20b Female thread (part of coupling member)
21 Non-rotating 22 Cord escape part 23 Dummy part

Claims (4)

A hinge that is interposed between two coupled members in which a cord is wired between each other and arbitrarily rotates and fixes the angle between the two coupled members;
A first hinge body connected to one of the members to be coupled;
A second hinge body having a connecting portion connected to the other member to be coupled, and a first hinge portion and a second hinge portion that slide with the first hinge body and sandwich both ends thereof;
A biasing member disposed inside the first hinge body;
A coupling member that rotatably couples the first hinge body and the second hinge body;
Have
In order to escape a cord wired inside the connection portion between the connection portion and the first hinge portion or between the connection portion and the second hinge portion via the inside thereof. A hinge characterized in that a cord relief portion is provided.   The hinge according to claim 1, wherein a restriction member for restricting rotation of the second hinge body is provided on the first hinge body.   The hinge according to claim 1, wherein the cord relief portion is tapered toward the connection portion.   A desk lamp comprising the hinge according to claim 1.

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