JP5048133B2 - Lamp insertion jig and lamp insertion device - Google Patents

Abstract

A lamp installing board (30) is provided with a first board (31) and a second board (32). A plurality of grooves (33 and 34) storing only one lamp are arranged in the respective boards (31 and 32). The boards (31 and 32) can slidably move. They store the lamp (40) in the groove (33) at a position where the grooves (33 and 34) are not overlapped, and simultaneously supply a plurality of lamps to sockets (37) by arranging the grooves (33 and 34) at a position where a back light chassis (35) corresponds to the sockets (37). Thus, lamp installation in a back light unit such as a liquid crystal display device can be made efficient in a lamp inserting jig and a lamp automatic inserting device using the jig.

Description

  The present invention relates to a lamp insertion jig suitable for insertion of a lamp for a backlight unit such as a liquid crystal display device, and a lamp insertion apparatus using the jig.

  The market for flat-screen TVs is expanding, and in particular, the competition for thinning is intensifying along with the competition for larger screens. On the other hand, price competition in the market is intensifying, and demand for cost reduction is increasing.

  In a liquid crystal television, since the liquid crystal panel itself does not emit light, a backlight unit for supplying light to the liquid crystal panel is usually provided on the back side of the liquid crystal panel. In the backlight unit, a plurality of cold cathode fluorescent tubes generally called CCFLs are used as light source lamps. This cold cathode fluorescent tube is usually a cylindrical shape with a thickness of several millimeters and has an elongated shape corresponding to the size of the screen. Usually, the lamp for the light source is inserted into the socket portion of the backlight unit by manual work. In order to meet the demands for thinner and larger TVs in recent years, lamps have become more difficult to handle due to their extremely long length compared to their thickness, and the number of lamps used has increased. For this reason, it requires a lot of manpower for installation, which causes a cost increase that cannot be ignored.

  FIG. 17 is a diagram illustrating a main part of a backlight unit used in a general liquid crystal display device. In FIG. 17, reference numeral 170 denotes a lamp for supplying light to the liquid crystal panel, and has lamp leads 171 for power connection at both ends thereof. Reference numeral 172 denotes a backlight chassis for housing the lamp. A reflective paint or the like is applied to the bottom surface of the backlight chassis 172 to constitute a reflective surface 173 for reflecting light from the lamp 170 forward. Further, sockets 174 are provided at both ends of the backlight chassis 172, and the lamp 170 is inserted and fixed. The lamp 170 receives power supply from a power supply unit (not shown) through the socket 174.

  As described above, the operation of inserting the lamp 170 into the socket 174 has been performed manually. Incomplete mounting of the lamp 170 in the socket 174 may cause a failure, so that it is necessary to mount the lamp 170 with a strong force. On the contrary, if the lamp 170 is pressed too much, the thin lamp 170 is damaged. A certain amount of familiarity and skill are required to install the lamp reliably. When the lamp is damaged, there is a problem in terms of safety such as a small piece of glass scattered.

  As the size of LCD TVs increases, the number of lamps required increases. For example, in a 32-inch (32-inch) liquid crystal television, usually 12 lamps are used, and it is necessary to securely attach these 12 lamps to the socket. In recent large-sized televisions, the length of the lamp 170 may exceed 1 meter. The person who inserts the lead wire 171 at one end of the lamp 174 in the socket 174 on one side and the lamp etc. in the socket 174 on the other side. This is a two-person operation with a person who inserts the end lead wire 171, which is one of the major causes of cost increase.

  Another important problem in manually carrying out the lamp mounting work is contamination of dust. That is, in general, the most waste generation source in the assembly work is “human”, but if this “manual work process” is entered during the assembly process of the backlight unit, the risk of contamination is increased. If dust enters the lamp unit, the shadow may appear on the liquid crystal panel, which causes a significant deterioration in image quality.

  Patent Document 1 discloses a lamp fixing member that facilitates insertion of a lamp in a backlight unit, a backlight assembly that uses the lamp fixing member, and a liquid crystal display device.

  14 to 16 are diagrams for explaining the lamp fixing member described in Patent Document 1. FIG. 14 is a perspective view showing an outline of a display device using the lamp fixing member. FIG. The figure which shows the structure of the lamp fixing member for making easy insertion in the socket of FIG. 16, FIG. 16 is a figure which shows the outline | summary of the socket part which fixes a lamp | ramp.

  In FIG. 14, 140 is a display unit, and 160 is a backlight unit. The display unit 140 includes a first substrate 142, a second substrate 144, and a liquid crystal layer 143 sandwiched between the first substrate 142 and the second substrate 144, and is fixed integrally by the top chassis 145 and the middle mold 141. Has been. A switching element or the like (not shown) is formed on the first substrate 142 by thin film technology, and an RGB color filter (not shown) or the like is also formed on the second substrate 144. In addition, a drive circuit board 146 on which an IC such as a drive circuit is mounted is provided in the periphery of the first board 142 and is connected to a switching element or the like formed on the first board 142.

  The backlight unit 160 has a lamp 170 accommodated in the backlight chassis 172, and this lamp 170 is inserted and fixed in a socket 174 provided at an end of the backlight chassis. In FIG. 14, only the socket 174 provided at one end of the backlight chassis 172 is visible, but the socket is also provided at the other end of the backlight chassis. The bottom surface of the backlight chassis is a reflective surface 173. In this example, a cover 161 is provided above the socket 174.

  The backlight unit 160 further includes a diffusion plate 162 provided on the lamp 170, an optical sheet 163, and a lamp fixing member 150 for facilitating the insertion of the lamp.

  15A and 15B are diagrams for explaining the details of the lamp fixing member 150. FIG. 15A is a diagram showing a state in which the lamp fixing member 150 fixes and holds the lamp 170, and FIG. The figure which shows the cross section of the vertical direction of the lamp fixing member 150, FIG.15 (c) is a figure which shows the condition of the lamp fixing member 150 before mounting | wearing with a lamp | ramp.

  The lamp fixing member 150 includes a first lamp fixing member 151 and a second lamp fixing member 152. Each of the first lamp fixing member 151 and the second lamp fixing member 152 has a semicircle for sandwiching the lamp. -Shaped holding portions 154 and 155 are provided. A space portion 156 for holding the lamp 170 is formed by the holding portion 154 of the first lamp fixing member 151 and the holding portion 155 of the second lamp fixing member 152.

  The first lamp fixing member 151 and the second lamp fixing member 152 are combined so as to be slidable in the length direction of each other. Before the lamp 170 is sandwiched, as shown in FIG. The parts 154 and 155 are opened from each other. In this state, the lamp 170 is inserted into the space portion 156. After the insertion, the first lamp fixing member and the second lamp fixing member are slid in the closing direction to fix and hold the lamp 170. Thereby, the plurality of lamps 170 are integrated in a bundled state. Thus, the plurality of lamps 170 are handled in an integrated state, and the plurality of lamps are collectively inserted into the socket 174. Reference numeral 153 denotes a diffusion plate support, which is formed integrally with the first lamp fixing member 151. Reference numeral 157 denotes a protrusion for fixing the lamp fixing member 150 to the backlight chassis 172 and is formed integrally with the second lamp fixing member 152.

  FIG. 16 shows an example of a socket. The socket 174 includes a socket body 175 having a lamp hole 177, receives the lamp 170 having the lamp lead 171, and further fixes the lamp 170 by the socket fixture 176.

According to such a lamp fixing member 150, it is possible to handle a plurality of lamps collectively, and it is possible to assemble more efficiently than conventional one-by-one assembly.
Japanese Patent Publication “JP 2007-165320 A (publication date: June 28, 2007)”

  In the method using the lamp fixing member described above, since a plurality of lamps are handled in a bundled state, the lamp can be inserted more efficiently than when the lamps are inserted into the socket one by one. The cost is inevitably increased due to the increase in the number of lamps required due to the increase in the size of LCD TVs. Further, as described above, since it is basically a manual work, there are dangers associated with the work, and there is a problem of deterioration in the display quality of the liquid crystal panel due to the mixing of dust into the lamp unit by the manual work.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a lamp insertion jig capable of improving the efficiency of lamp insertion into the socket, and to automatically perform the lamp insertion into the socket. An object of the present invention is to provide a lamp insertion device that enables insertion.

  In order to solve the above-mentioned problem, the lamp insertion jig according to the invention of the present application can accommodate only one lamp, and each of a plurality of intervals is defined as the same interval as the interval of the socket into which the lamp is to be inserted. The first board having the lamp housing groove and only one lamp can be housed, and the distance between the first board and the lamp housing groove provided in the first board is defined as the same number as the first board. A second board having a lamp receiving groove, and the first board and the second board are configured to be slidable from a position where the lamp receiving grooves provided on each of the boards do not overlap to an overlapping position. Yes.

  According to the present invention, it is possible to handle a plurality of lamps in a lump, and by using such a lamp insertion jig, a large number of lamps such as a backlight lamp of a liquid crystal display device can be used. Can be inserted into the socket efficiently.

  In order to solve the above-described problem, a lamp insertion device according to another invention of the present application includes the above-described lamp insertion jig, a holding frame that holds the lamp insertion jig in a vertically movable manner, and the lamp insertion. A base for mounting a chassis provided with a socket into which a lamp is provided, which is provided at a lower portion of the jig, and a chassis having a socket provided in the base and into which the lamp is inserted are defined. And a chassis stopper for setting the position.

  According to the present invention, even when a chassis having a socket into which a lamp is inserted is automatically supplied, the chassis can be accurately set at a predetermined position, so that the lamp insertion operation can be performed with higher efficiency. Can do.

  Other objects, features, and advantages of the present invention will be fully understood from the following description. The advantages of the present invention will become apparent from the following description with reference to the accompanying drawings.

It is a front view which shows the outline of the lamp | ramp automatic insertion apparatus which concerns on this invention. It is a side view which shows the outline of the lamp | ramp automatic insertion apparatus which concerns on this invention. It is a figure for demonstrating the jig | tool for lamp insertion which concerns on this invention, and its operation | movement. It is a figure for demonstrating operation | movement of the lamp automatic insertion apparatus using the jig | tool for lamp insertion which concerns on this invention. It is a figure for demonstrating operation | movement of the lamp automatic insertion apparatus using the jig | tool for lamp insertion which concerns on this invention. It is a figure for demonstrating operation | movement of the lamp automatic insertion apparatus using the jig | tool for lamp insertion which concerns on this invention. It is a figure for demonstrating operation | movement of the lamp automatic insertion apparatus using the jig | tool for lamp insertion which concerns on this invention. It is a figure for demonstrating operation | movement of the lamp automatic insertion apparatus using the jig | tool for lamp insertion which concerns on this invention. It is a figure for demonstrating operation | movement of the lamp automatic insertion apparatus using the jig | tool for lamp insertion which concerns on this invention. It is a figure for demonstrating operation | movement of the lamp automatic insertion apparatus using the jig | tool for lamp insertion which concerns on this invention. It is a figure for demonstrating operation | movement of the lamp automatic insertion apparatus using the jig | tool for lamp insertion which concerns on this invention. It is a figure for demonstrating operation | movement of the lamp automatic insertion apparatus using the jig | tool for lamp insertion which concerns on this invention. It is a figure for demonstrating operation | movement of the lamp automatic insertion apparatus using the jig | tool for lamp insertion which concerns on this invention. It is a figure which shows the structure of the display unit of a prior art, and a backlight unit. It is the figure which showed the lamp fixing member in the backlight unit of a prior art. It is the figure which showed the socket in the backlight unit of a prior art. It is the figure which showed the structure of the backlight chassis of a prior art.

Explanation of symbols

1 frame frame 2 work table 3 base 4 holding frame 5 vertical drive mechanism 6 main body 30 lamp mounting board (lamp insertion jig)
31 1st board 32 2nd board 33 1st lamp accommodating groove 34 2nd lamp accommodating groove 35 Backlight chassis 36 Reflecting surface 37 Socket 40 Lamp 41 Lamp lead part 50 Chassis stopper 70 1st holding bar 80 2nd holding bar

  An embodiment of the present invention will be described with reference to FIGS. In the following description, various technically preferable limitations for implementing the present invention are given, but the technical scope of the present invention is not limited to the following embodiments and drawings.

  First, the outline of the overall configuration of the automatic lamp insertion device according to the present invention will be described with reference to FIGS. 1 and 2, and then the insertion for inserting the backlight lamp into the socket will be described with reference to FIGS. The outline of the mechanism will be described, and finally, a method of automatically inserting the lamp into the socket will be described with reference to FIGS.

  FIG. 1 and FIG. 2 are diagrams showing an outline of the entire automatic lamp insertion device according to the present invention, FIG. 1 is a side view of the automatic lamp insertion device, and FIG. 2 is a front view of the automatic lamp insertion device. FIG.

  1 and 2, reference numeral 1 denotes a frame frame combined in a shelf shape, in which a main body 6 including a control unit that controls the entire automatic lamp insertion device and a driving device such as a motor is accommodated. Reference numeral 2 denotes a work table, on which a base 3 for setting the backlight chassis 35 at a predetermined position is placed. The backlight chassis 35 has the same configuration as that of the conventional backlight chassis 172 described with reference to FIG. 17, but will be described later with reference to FIG.

  Reference numeral 4 denotes a holding frame for holding the lamp mounting board 30. The lamp mounting board 30 is composed of two boards, a first board 31 and a second board 32, as will be described in detail later with reference to FIG. Combined to be slidable. The holding frame 4 is movable in the vertical direction as indicated by an arrow 7, and a driving unit (explicitly) for slidingly driving one of the lamp mounting boards 30 including the first board and the second board. Have not). Reference numeral 5 denotes a drive mechanism for moving the holding frame 4 up and down, and is driven by a motor or the like housed in the main body 6.

  FIG. 3 is a diagram for explaining an outline of a mechanism for automatically inserting a backlight lamp into a socket 37 provided in the backlight chassis 35. FIG. 3A shows the backlight chassis 35 and the lamp. FIG. 3B is a diagram for explaining the positional relationship of the mounting board 30, FIG. 3B is a diagram showing a cross section of the lamp mounting board viewed from the AA ′ direction in FIG. 3A, and FIG. FIG. 3D is a view in which the lamp mounting board 30 is lowered and set near the position of the socket 37, and FIGS. 3D and 3E show other embodiments of the lamp mounting board 30. FIG.

  As described with reference to FIG. 1, the lamp mounting board 30 is held on the holding frame 4. Therefore, when the holding frame 4 is moved downward, the lamp mounting board 30 is moved in the direction of the arrow 39 accordingly. Will descend.

  3 (a), 3 (b), 3 (c), 3 (d), and 3 (e) are described so that the principle configuration can be easily understood, and the actual dimensional relationship is described. It does not indicate. Further, although three lamps are shown as the lamps to be inserted, it goes without saying that the number is not limited to this.

  3A, 3 </ b> B, and 3 </ b> C, reference numeral 30 denotes a lamp mounting board, which includes two boards, a first board 31 and a second board 32. The first board 31 and the second board 32 are respectively provided with a first lamp housing groove 33 and a second lamp housing groove 34 that can house a lamp. In these lamp housing grooves 33 and 34, as shown by the broken lines in FIGS. 3B and 3C, the backlight lamp 40 is housed. Further, the first lamp housing groove 33 and the second lamp housing groove 34 are provided by the number of lamps used for the backlight. The size of the lamp receiving groove 34, that is, the width, depth, and length of the opening is set so as to ensure that only one lamp can be inserted. It is chosen as the dimension + dimension.

  The width of the opening of the first lamp housing groove 33 and the second lamp housing groove 34, particularly the width of the opening of the second lamp housing groove 34, is an important falita when inserting the lamp 40 into the socket 37. Become. In order to insert the lamp 40 into the socket 37 without human intervention, it is necessary that the lamp 40 is accurately set at the position of the socket 37. For this purpose, it is necessary to reduce the margin, but if the margin is reduced, it becomes difficult to accommodate the lamp in the lamp accommodating groove.

  That is, more preferably, the first lamp housing groove 33 needs to be designed mainly for easily housing the lamp, and the second lamp housing groove 34 accurately sets the lamp in the socket. It is necessary to design with the focus on this. Therefore, it is preferable to set the width of the opening of the first lamp housing groove 33 wider than the width of the opening of the second lamp housing groove 34.

  As one embodiment, specifically, for a lamp with a diameter of 3.4 mm, the width of the opening of the first lamp housing groove 33 is 6 mm, and the width of the opening of the second lamp housing groove 34 is 4 mm. Yes.

  Thus, by configuring the width of the opening of the first lamp housing groove 33 to be wider than the width of the opening of the second lamp housing groove 34, the lamp 40 can be smoothly formed into the first lamp housing groove 33. 40 could be accurately set at the position of the socket 37.

  Reference numeral 35 denotes a backlight chassis. The inner surface of the backlight chassis is a reflecting surface 36. Although only one end is shown in FIG. 3A, sockets 37 for supplying power to the lamp 40 are provided at both ends. is doing.

  3A and 3B, the first board 31 is movable relative to the second board 32. As will be described in detail later, the lamp 40 In the process of automatically inserting into the socket 37 provided in the backlight chassis 35, the lamp housing groove 33 of the first board 31 and the lamp housing groove of the second board 32 shown in FIGS. 3 (a) and 3 (b). The lamp housing groove 33 of the first board 31 and the lamp housing groove 34 of the second board 32 shown in FIG. In FIG. 3C, reference numeral 50 denotes a positioning stopper for the backlight chassis 35. The backlight chassis 35 is moved by a belt conveyor from the left in the figure, and is set at a predetermined position by the stopper 50.

  In FIG. 3A, an arrow 41 indicates the positional relationship between the second board 32 of the lamp mounting board 30 and the socket 37 of the backlight chassis 35 when the lamp 40 is mounted on the backlight chassis 35. Is. As shown in the figure, when the lamp is inserted into the socket 37, the lamp mounting board 30 is set at a position where the lamp receiving groove 34 of the second board 32 and the socket 37 of the backlight chassis 35 correspond to each other. The

  In the example shown in FIG. 3, a belt conveyor is used for the lamp mounting board 30 that is already set in a predetermined position in a state where the lamp 40 is already housed in the lamp housing groove 33 of the first board 31. The backlight chassis 35 that has been swept away by the abutting contact with the chassis stopper 50 shown in FIG. 3C is positioned at a required position.

  After the backlight chassis 35 and the lamp mounting board 30 are set at this position, the lamp mounting board 30 is moved downward as indicated by an arrow 39. After the lamp mounting board 30 is moved downward, the first board 31 is slid in the direction of the arrow 38, so that the lamp housing groove 33 of the first board 31 and the lamp housing groove 34 of the second board 32 overlap each other. Moved. FIG. 3C shows a situation after the lamp mounting board 30 is moved downward and the first board 31 is further moved in the arrow 38 direction. As apparent from FIG. 3C, the lamp housing grooves 33 and 34 correspond to the positions of the sockets 37, and it is immediately possible to set the lamps 40 in the sockets 37 simply by moving the lamps 40 downward. Understandable. Actually, when the state shown in FIG. 3C is reached, the lamp 40 falls to the socket 37 portion by its own weight.

  In the actual insertion process, the movement of the first board 31 in the direction of the arrow 38 and the movement of the lamp mounting board 30 in the downward direction (in the direction of the arrow 39) can be performed simultaneously. Time can be shortened. Furthermore, it may be controlled so that the supply of the backlight chassis 35 and the movement of the lamp mounting board are performed simultaneously.

  The lamp 40 may be set on the lamp mounting board 30 manually. In this case, the automation is not complete, but as will be described later with reference to FIGS. 5 to 13, the process of inserting the lamp that requires the most skill into the socket is automated, resulting in a significant cost. Down is possible. Further, since the lamp is inserted into the socket itself by the machine, the lamp can be inserted with a very stable force, and the failure rate based on the uncertain insertion of the lamp into the socket can be greatly reduced. In addition, there is little human intervention and the entry of garbage can be greatly reduced.

  FIGS. 3D and 3E show another embodiment of the lamp mounting board 30 in which the widths of the openings of the first lamp housing groove 33 and the second lamp housing groove 34 are changed. Yet another embodiment is shown. 3 (d) and 3 (e), the same members as those in FIGS. 3 (a), 3 (b), and 3 (c) are assigned the same numbers. Omitted.

  As shown in FIGS. 3D and 3E, in this embodiment, the lamp housing groove 34 provided in the second board 32 of the lamp mounting board 30 is formed on the side in contact with the first board 31. An opening of the same size as the lamp receiving groove 33 provided in the first board 31 and an opening of the lamp receiving groove 33 provided in the first board 31 on the side facing the socket 37 into which the lamp is to be inserted. It has a narrower opening.

  In the example shown in FIG. 3D and FIG. 3E, a trapezoidal member having an inclined surface at the top is attached to both side walls of the second lamp mounting groove 34. The trapezoidal member appears to be composed of two parts in FIGS. 3D and 3E, but this is not particular. Further, it goes without saying that the trapezoidal member itself may be formed integrally with the second board 32 instead of being made of a separate member.

  As described with reference to FIG. 3A, FIG. 3B, and FIG. 3C, first, the lamp 40 is accommodated in the first lamp accommodating groove 33 as shown in FIG. The first board 31 is moved leftward in the drawing, and the entire lamp mounting board 30 is lowered downward. This state is shown in FIG. As apparent from FIG. 3 (e), the lamp 40 is set at a position opposite to the socket 37 provided in the backlight chassis 35, and the lamp 40 can be inserted into the socket 37 very easily by the subsequent operation. be able to.

  In the case of this example, since the inclined surface is provided in the second lamp housing groove of the second board, the lamp 40 can be moved smoothly when moved from the first lamp housing groove 33 of the first board. The risk of lamp breakage can be greatly reduced. Various modifications can be considered in the configuration of the inclined surface. For example, the inclined surface may be immediately changed from the top of the second lamp housing groove 34 (the surface contacting the first board 31). Since it is necessary to regulate the lateral movement of the lamp, the height of the trapezoidal portion is preferably higher than half the height of the lamp, but this is not an essential requirement and there are various changes. In the case of FIGS. 3D and 3E, it can be seen that the height of the trapezoidal portion is substantially equal to the diameter of the lamp 40. Moreover, it can also be comprised by the inclined surface from the top of the 2nd lamp | ramp accommodation groove | channel 34 to a bottom (surface by the side of a socket). In this case, it is preferable to increase the inclination.

  Further, since the inclined surface is provided, the height of the second board 32 may be higher than the height of the first board 31. The inclined surface may be configured by a curved surface that gently protrudes toward the inner surface side of the second lamp housing groove, and further, a member that absorbs an impact composed of plastic or the like is stretched on the surface of the inclined surface so that the lamp and the inclined surface are inclined. It is good also as a structure which softens the impact at the time of a collision with a surface.

  As is apparent from the above description, the lamp mounting board 30 is extremely useful as a lamp insertion jig for handling a plurality of lamps. For example, even if a complete automatic insertion device is not configured for a small liquid crystal television or the like, it is easily necessary on the socket by manually storing the lamp in the lamp mounting board 30 and moving it onto the backlight chassis. Ready lamps. This makes it possible to perform work more efficiently than work one by one.

  In addition, the insertion device provided with the chassis stopper 50 for setting the lamp mounting board 30 and the backlight chassis 35 at a predetermined position is expected to be more efficient than the conventional example in which everything is performed manually. it can.

  FIG. 4 is a diagram showing an example in which the lamp 40 is set on the lamp mounting board 30 mechanically. As shown in FIG. 4, the lamp mounting board 30 is inclined at a predetermined angle θ. In this state, when the lamp 40 is supplied from the higher position side of the lamp mounting board 30 to the lamp mounting board, the first lamp 40 first fits in the first lamp housing groove 33-1. The next lamp 40 rolls on the lamp 40 received in the first lamp receiving groove 33-1, and then fits in the next lamp receiving groove 33-2. Further, the next lamp 40 is similarly accommodated in the last lamp accommodating groove 33-3. In this case, it is preferable that the diameter of the lamp and at least the thickness of the first board 31 are substantially equal.

  The above-mentioned angle θ depends on the shape of the lamp and the margin of the width of the opening of the lamp housing groove 33, but according to experiments, the angle θ is in the range of 6 degrees to 12 degrees. A central value of around 9 degrees was the most preferable value.

  In the above case, automation is further promoted as compared with manual lamp mounting on the lamp mounting board 30, and further cost reduction and more reliable prevention of dust problems can be expected.

  Next, the actual operation of the automatic lamp insertion device according to the present invention will be described with reference to FIGS. In FIGS. 5 to 13, the same parts as those in FIGS. 1 to 4 are denoted by the same reference numerals, and description thereof will be omitted.

  In FIG. 5, the backlight chassis 35 having the socket 37 is supplied as shown by an arrow 52 from a portion not shown, is in contact with the chassis stopper 50, and is set at a predetermined position. The first board 31 of the lamp mounting board 30 shows a state where the lamp 40 is already accommodated. As is apparent from the drawing, in this state, the lamp mounting board 30 has the second lamp receiving groove 34 of the second board of the lamp mounting board 30 opposed to the socket 37 provided in the backlight chassis 35. It is set to be in the position.

  From this state, the lamp mounting board 30 is first lowered in the direction of the arrow 39. Next, the first board 31 is moved in the direction of arrow 38. FIG. 6 shows a state in which the lamp mounting board 30 is lowered, the first board 31 is further slid in the direction of the arrow 38, and the first lamp housing groove 33 and the second lamp housing groove 34 are aligned.

  In the above description, the lowering operation of the lamp mounting board 30 and the sliding operation of the first board 31 are described as separate operations. However, while the lamp mounting board 30 is lowered, the sliding operation of the first board 31 is simultaneously performed. You may make it do. At this time, when the lamp mounting board 30 reaches a predetermined position, it is necessary to adjust the timing so that the first lamp housing groove 33 and the second lamp housing groove 34 are exactly aligned. Further, the operation of bringing the backlight chassis 35 into contact with the chassis stopper 50 can be simultaneously performed in accordance with the slide operation of the first board 31 and the lowering operation of the lamp mounting board 30 described above. In this case as well, it is necessary to adjust the timing at which the backlight chassis 35 is set at a predetermined position and the timing at which the first lamp housing groove 33 and the second lamp housing groove 34 come to coincide with each other. There is no. Thus, when several operations are performed simultaneously, the operation time required for lamp insertion can be shortened.

  In FIG. 6, it is written that the lamp 40 is floating in the air. However, when the first board 31 is moved in the direction of the arrow and the first lamp receiving groove 33 and the second lamp receiving groove 34 are aligned, the lamp 40 40 naturally falls by gravity and comes into contact with the socket 37. This state is shown in FIG.

  Next, as shown in FIG. 7, the first holding rod 70 is moved in the direction of the arrow 75 and is brought into contact with the lamp 40 from above. The first holding rod 70 includes a plurality of protrusions 72 that contact at least a portion corresponding to the socket 37 of the lamp 40 and a connecting portion 71 that integrally connects the protrusions 72. As shown in FIG. 11, the first holding bars 70 are respectively provided at two locations on the side surface portion (left and right portions in FIG. 11) of the backlight chassis 35 in which sockets 37 are provided at both ends. The connecting portion 71 of the first holding rod 70 is coupled to a drive device 74 such as a motor, and is rotated in the direction of the arrow 75 by the drive of the drive device 74. That is, in this example, the first holding bar 70 is configured as a rotary holding bar. In FIG. 11, reference numeral 41 denotes a lead wire portion of the lamp 40.

  FIG. 12 shows a state in which the first holding rod 70 is rotated and its protrusion 72 is in contact with the lead wire 41 portion of the lamp 40. In FIG. 12, the first pressing rod 70 is shown only at one end (right side in FIG. 12) of the lamp 40, and the pressing rod 70 on the other end (left side in FIG. 12) is omitted. ing. When the lead wire 41 of the lamp 40 is securely inserted into the socket 37 only by being pushed by the drive device 74, the drive device 74 and the first pressing rod 70 may be configured alone, but only the rotational moment of the motor. A large force is required to push in, and a large motor is required. Therefore, it is preferable to provide a second holding rod 80 in order to push the lead wire 41 of the lamp 40 into the socket by pushing it with a small motor.

  8, 9, 10, 12, and 13 are diagrams for explaining the state of lamp insertion when the second holding rod 80 is provided. Similar to FIG. 12, in FIG. 13 as well, the first pressing rod 70 and the second pressing rod 80 are shown only at one end portion (right side in FIG. 13) of the lamp 40, and the other end portion side (FIG. 13). The left side) of the holding rods 70 and 80 are omitted.

  As can be understood from the description of FIG. 8, in this example, the second pressing rod 80 is constituted by a piston-type pressing rod using hydraulic pressure or the like. The tip 81 of the piston-type second holding rod 80 is brought into contact with the first holding rod 70, the piston is extended in the direction of the arrow 85, and the first holding rod 70 is moved at the tip 81 of the holding rod 80. Press down further. 9 and 13 show the state at this time. Even if the piston using the hydraulic device is small, a large force can be easily obtained. Therefore, the lead wire 41 of the lamp 40 can be reliably inserted into the socket 37. 11 and 12, reference numeral 73 is provided so that the tip 81 of the second pressing rod 80 is surely engaged with the connecting portion 71 of the first pressing rod 70 and the connecting portion 71 is surely pushed down. It is a stopper.

  After the lamp 40 is securely inserted into the socket 37, as shown in FIG. 10, the chassis stopper 50 is lowered, the engagement with the backlight chassis 35 is released, and the first and second holding rods 70, 80 are moved. After returning to the original position and returning the lamp mounting board 30 to the original position, the backlight chassis 35 to which the lamp 40 is mounted is sent to the next step as indicated by an arrow 53.

  After returning the chassis stopper 50 to its original position, a new backlight chassis is set at a predetermined position, and the series of steps described with reference to FIGS. It is inserted into the socket 37 of the chassis 35. By repeating such steps, lamps are inserted into the backlight chassis one after another.

  In addition, this invention is not limited to the Example mentioned above, A various change is possible in the range shown to the claim.

  In order to solve the above-described problems, the lamp insertion jig according to the invention of the present application is such that the lamp receiving groove provided in the first board is wider than the lamp receiving groove provided in the second board. It is an opening.

  In order to insert the lamp into the socket, it is necessary to place the lamp exactly at the socket. Therefore, if the opening of the lamp housing groove is narrowed, it becomes difficult to house the lamp in the lamp housing groove. However, according to the present invention, the lamp of the first board is set while the lamp is set at an accurate position with respect to the socket. The lamp can be accommodated more easily in the lamp accommodating groove.

  In order to solve the above-described problems, a lamp insertion jig according to the invention of the present application has a lamp receiving groove provided in the second board, on the first board on the side in contact with the first board. The opening has the same size as the lamp housing groove provided, and the opening is narrower than the opening provided in the first board on the side facing the socket into which the lamp is to be inserted.

  According to this, the lamp can be moved more smoothly from the lamp receiving groove provided in the first board to the lamp receiving groove provided in the second board, and the lamp can be more easily damaged. Efficient and safe assembly is possible.

  In order to solve the above-described problems, a lamp insertion device according to another invention of the present application is the above-described lamp insertion device, further provided at both ends in the longitudinal direction of the lamp receiving groove provided in the lamp insertion jig. The first holding rod for contacting the lead portion of the lamp housed in the lamp housing groove and for pushing the lamp into the socket is provided.

  According to the present invention, the process until the lamp is pushed into the socket can be automated, cost reduction can be realized, and contamination by dust due to manual work can be avoided as much as possible. In addition, since the lamp is inserted by mechanical force, it is possible to insert the lamp with a stable force and prevent an insertion error.

  In order to solve the above-described problem, a lamp insertion device according to another invention of the present application is characterized in that, in the lamp insertion device described above, the first pressing rod is a rotary pressing rod.

  According to the present invention, the first pressing rod can be provided at a position that does not hinder the transfer of the chassis with a simple configuration, and the configuration of the lamp insertion device can be simplified.

  In order to solve the above-described problem, in the lamp insertion device according to another invention of the present application, in the above-described lamp insertion device, a first for abutting the first pressing rod and further pushing the first pressing rod. It features 2 holding bars.

  According to the present invention, the first holding bar can be realized by using a motor having a relatively weak force, and the lamp can be inserted reliably.

  In order to solve the above-described problem, a lamp insertion device according to another invention of the present application is characterized in that, in the above-described lamp insertion device, the second pressing rod is a piston-type pressing rod.

  According to the present invention, since the second pressing bar is a piston-type pressing bar that can obtain a strong force even in a small size, the entire apparatus can be reduced in size.

  In order to solve the above-described problem, a lamp insertion device according to still another invention of the present application is characterized in that, in the above-described lamp insertion device, a lamp insertion jig can be set at an inclination. .

  According to the present invention, since the lamp insertion jig can be set at an inclination, the lamp can be accommodated in the lamp accommodation groove of the lamp insertion jig without manual intervention, and the entire lamp insertion process can be automated. Become.

  As described above, the lamp insertion jig according to the invention of the present application can accommodate only one lamp, and has a plurality of lamp accommodating grooves each defined with the same interval as the interval of the socket into which the lamp is to be inserted. The first board can have only one lamp, and the interval between the first board and the first board is defined to be the same as the lamp receiving groove provided on the board of title 1, and the same number of lamp receiving grooves as the first board are provided. The first board and the second board are configured to be slidable from a position where the lamp receiving grooves provided in each of the above boards do not overlap to an overlapping position.

  A lamp insertion device according to another invention of the present application is provided at the lamp insertion jig, a holding frame that holds the lamp insertion jig so as to be movable up and down, and a lower part of the lamp insertion jig. A base for mounting a chassis having a socket into which a lamp is inserted; and a chassis stopper provided on the base for setting the chassis having the socket into which the lamp is inserted at a predetermined position; It has.

  Further, a lamp insertion device according to another invention of the present application is housed in the lamp housing groove at both ends in the longitudinal direction of the lamp housing groove provided in the lamp insertion jig in the lamp insertion device described above. And a first holding rod for contacting the lead portion of the lamp and pushing the lamp into the socket.

  In the lamp insertion device according to still another invention of the present application, the lamp insertion device further includes a second pressing rod for contacting the first pressing rod and further pressing the first pressing rod. It is characterized by that.

  As a result, it is possible to efficiently perform the lamp insertion work of the backlight unit, which requires skill and manpower, and it is also possible to automate the entire lamp insertion process, thereby reducing costs and providing a high-quality backlight. You can get a unit.

  The specific embodiments or examples made in the detailed description section of the invention are merely to clarify the technical contents of the present invention, and are limited to such specific examples and are interpreted in a narrow sense. It should be understood that various modifications may be made within the spirit of the invention and the scope of the following claims.

  ADVANTAGE OF THE INVENTION According to this invention, the assembly of the backlight unit used for a liquid crystal television etc. can be performed efficiently, and the lamp insertion operation | work in a backlight unit can be automated. Therefore, it is extremely useful in the industry, such as realizing a significant cost reduction for liquid crystal televisions and the like.

Claims (9)

A first board having a plurality of lamp receiving grooves, each of which can accommodate only one lamp, each interval being defined as the same interval as the interval of the socket into which the lamp is to be inserted;
There is a second board that can accommodate only one lamp, each interval is defined to be the same as the lamp accommodating groove provided in the first board, and has the same number of lamp accommodating grooves as the first board. And
The first board and the second board are lamp insertion jigs configured to be slidable from a position where the lamp receiving grooves provided on each of the boards do not overlap to an overlapping position.   The lamp insertion groove according to claim 1, wherein the lamp receiving groove provided in the first board has an opening wider than the lamp receiving groove provided in the second board. jig.   The lamp housing groove provided in the second board is an opening having the same size as the lamp housing groove provided in the first board on the side in contact with the first board, and the lamp should be inserted. 2. The lamp insertion jig according to claim 1, wherein the opening is narrower than the opening provided in the first board on the side facing the socket. A lamp insertion jig according to claim 1;
A holding frame for holding the lamp insertion jig so as to be movable up and down;
A base for placing a chassis provided with a socket into which a lamp is inserted, which is provided at the bottom of the lamp insertion jig;
A lamp insertion device comprising: a chassis stopper provided on the base for setting a chassis having a socket into which the lamp is inserted, at a predetermined position.   A first holding rod for abutting against the lead portion of the lamp housed in the lamp housing groove at both ends in the longitudinal direction of the lamp housing groove provided in the lamp insertion jig and for pushing the lamp into the socket The lamp insertion device according to claim 4, further comprising:   6. The lamp insertion device according to claim 5, wherein the first holding bar is a rotary holding bar.   6. The lamp insertion device according to claim 5, further comprising a second pressing bar that contacts the first pressing bar and further pushes the first pressing bar.   The lamp insertion device according to claim 7, wherein the second holding bar is a piston type holding bar.   5. The lamp insertion device according to claim 4, wherein the lamp insertion jig can be set at an inclination.

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