JP4688662B2 - Fixing structure, display device and fixing member - Google Patents

Description

  The present invention relates to a fixing structure in which two members are fixed and the two fixed members can be easily disassembled, a display device for fixing a cabinet using the fixing structure, and the fixing structure and the display device. The present invention relates to a fixing member used.

  For example, in a liquid crystal display device, many components such as a liquid crystal panel for displaying video, a speaker for outputting sound, and a circuit board provided with a circuit for controlling these are housed in a cabinet. The cabinet is made of synthetic resin or metal and divided into two or more, and fixing of the divided cabinet is screwed, snap fit to engage the hook and groove, and adhesion by welding or adhesive, etc. This method is used. In addition, the same fixing structure is applied to electrical devices other than the liquid crystal display device, so that the electrical device can be easily and reliably fixed in order to simplify the assembly process and shorten the assembly time. There is a need for a fixed structure that can

  In Patent Document 1, bosses are provided at opposite positions of the four corners of the front cabinet and the rear cabinet, and receiving seats that are fitted to the bosses are provided at the four corners of the reflector sandwiched between the front cabinet and the rear cabinet. There has been proposed an assembly structure of a liquid crystal television in which a liquid crystal panel is inserted between the reflectors, a main board is inserted between the reflector and the rear cabinet, and these are integrally tightened and fixed using screws. In this assembly structure, the number of parts can be reduced and the assembly workability can be improved.

In Patent Document 2, a screw-fastening pipe provided in the front cabinet is inserted into a through hole formed in a speaker box with a built-in speaker so that the speaker box is temporarily fixed to the front cabinet. Then, a cabinet of a television receiver that can fix the speaker box, the front cabinet, and the rear cabinet by attaching a rear cabinet and screwing the rear cabinet is proposed. In this cabinet, the number of parts and assembly steps required for assembling the cabinet and attaching the speaker box can be reduced, and the work efficiency of the assembly can be improved.
Japanese Patent Laid-Open No. 5-103284 Japanese Patent Laid-Open No. 7-274099

  In recent years, electrical equipment is recycled from the viewpoint of effective use of resources, environmental protection, and the like. When recycling is performed, it is necessary to disassemble the electrical equipment and perform a recycling process for each part. However, the conventional fixed structure in electrical equipment does not place importance on the ease of disassembly of the equipment when recycling, and at first glance the disassembly method is not known, or many tools are used for disassembly. There is a problem that it is necessary and the like, leading to an increase in time and cost required for dismantling. The assembly structure of the liquid crystal television described in Patent Document 1 and the television receiver cabinet described in Patent Document 2 are also configured to be screwed, so that all the screws are removed when the cabinet is disassembled. There is a problem that it takes time to dismantle. Further, even when the electric device is discarded, there is a similar problem in this case because it is necessary to disassemble the electric device in order to separate the electric device according to materials such as metal, glass or plastic.

  This invention is made | formed in view of such a situation, The place made into the objective is the connection part which connects the axial part and head part of a fixing member which fix the 1st member and the 2nd member. When the force is applied in a direction different from the axial direction of the shaft portion, the first member and the second member are broken by being broken and the first member and the second member are released from being fixed. It is an object of the present invention to provide a fixing structure capable of easily releasing the fixing of the member and dismantling the device.

  Another object of the present invention is that the connecting portion of the fixing member is formed continuously with the shaft portion, and a hole is formed in a direction intersecting the axial direction of the shaft portion. It is an object of the present invention to provide a fixing structure that can easily and reliably break down a connecting portion to easily and reliably disassemble a device.

  Another object of the present invention is that the fixing member and the first member are formed of synthetic resin, so that the fixing portion is composed of parts of the same material after the assembly of the device. An object of the present invention is to provide a fixing structure capable of obtaining a sense of unity in design of one member.

  According to another object of the present invention, the fixing member and the second member are formed of synthetic resin, so that the second member and the fixing member are fixed after the connecting portion of the fixing member is broken when the device is disassembled. Even when the shaft portion of the member is maintained in the engaged state, the second member and the fixing member are made of parts of the same material, and the second member and the fixing member can be recycled without releasing the engagement. Another object is to provide a fixing structure that can be discarded.

  Another object of the present invention is to form a claw portion having flexibility in the shaft portion of the fixing member, and to engage the second member with the hole portion and the groove portion engaged with the claw portion. When the claw portion and the groove portion are engaged, the fixing member is locked so as not to rotate, so that the fixing member and the second member can be easily engaged, and the first member can be reliably engaged. It is providing the fixing structure which can fix a member and a 2nd member with a fixing member.

  Another object of the present invention is that a through hole through which the shaft portion of the fixing member is inserted is formed at the bottom of the recess provided in the first member, and the shaft portion of the fixing member is inserted through the through hole. In addition, the head of the fixing member is configured to fit in the recess of the first member, and the operation unit for performing the operation of rotating the fixing member is provided on the head, thereby the fixing member and the first An object of the present invention is to provide a fixing structure capable of obtaining a sense of unity in design of one member and easily releasing the fixing of the first member and the second member.

  Another object of the present invention is that when the shaft portion and the head portion of the fixing member that fixes the first cabinet and the second cabinet apply a force in a direction different from the axial direction of the shaft portion. By being destroyed and configured to release the first cabinet and the second cabinet, the first cabinet and the second cabinet can be easily released from each other and disassembled easily. An object of the present invention is to provide a display device that can be used.

  Another object of the present invention is to form a hole in the connecting portion that connects the shaft portion on which the claw portion is formed and the head portion in a direction intersecting the axial direction of the shaft portion. Accordingly, it is an object of the present invention to provide a fixing member that can easily and reliably disassemble a device by easily and reliably destroying a connecting portion.

  In the fixing structure according to the present invention, the first member and the second member are fixed by a fixing member that is inserted through a through hole formed in the first member and engages with the second member. In the fixing structure, the fixing member can be inserted through the through hole, and the shaft portion provided with an engaging means for engaging with the second member is inserted through the through hole. Is impossible, has a head portion that contacts the first member, a shaft portion and a connection portion that connects the head portion, and the shaft portion is engaged with the second member. The connecting portion is broken when a force is applied to the head in a direction different from the axial direction of the shaft portion.

  In the present invention, the connecting portion connecting the shaft portion and the head portion of the fixing member is broken when a force is applied to the head in a direction different from the axial direction. The through hole formed in the first member is engaged with the second member through the shaft portion of the fixing member, and the head of the fixing member is brought into contact with the first member so that the second member and the head are not in contact with each other. The first member and the second member are fixed by sandwiching the first member. In this state, when the connection portion is broken by applying a force to the head of the fixing member, the first portion by the head of the second member and the fixing member remains while the shaft portion of the fixing member is engaged with the second member. The holding of the member is released, and the fixation of the first member and the second member is released.

  Further, in the fixing structure according to the present invention, the connecting portion can be inserted through the through hole, is formed continuously with the shaft portion, and intersects the axial center direction of the shaft portion. It is characterized in that a hole is formed in.

  In the present invention, a hole is made in the connecting portion that connects the shaft portion and the head portion to weaken the strength. When a force is applied to the head, the weak connection portion is easily broken, the shaft and the head are separated, and the first member and the second member are released from being fixed.

  The fixing structure according to the present invention is characterized in that the fixing member and the first member are made of synthetic resin.

  In the present invention, the fixing member and the first member are made of synthetic resin. Since the fixing member and the first member are formed of the same material, the fixing member and the first member are inserted into the through hole of the first member through the shaft portion of the fixing member and engaged with the second member. It becomes possible to produce a sense of unity in the design of one member.

  The fixing structure according to the present invention is characterized in that the fixing member and the second member are made of synthetic resin.

  In the present invention, the fixing member and the second member are formed of synthetic resin. When the first member and the second member are fixed using a fixing member, and the connecting portion of the fixing member is broken during disassembly, the shaft portion of the fixing member is engaged with the second member. Since the shaft portion of the fixing member and the second member are formed of the same material, recycling or disposal can be performed without releasing the engagement between the shaft portion of the fixing member and the second member. Is possible.

  Further, in the fixing structure according to the present invention, the engaging means of the fixing member is a flexible claw portion formed in the shaft portion, and the second member is the shaft of the fixing member. And a shaft portion formed in the hole portion and engaged with the claw portion. When the claw portion and the groove portion are engaged, the shaft portion of the fixing member rotates. It is characterized by being impossible.

  In the present invention, a claw portion having flexibility is provided on the shaft portion of the fixing member, and the hole portion into which the shaft portion of the fixing member is fitted to the second member and the claw portion of the fixing member engages in the hole portion. A groove is provided. The first member and the second member can be easily fixed by inserting the fixing member through the through hole of the first member and inserting the fixing member into the hole portion of the second member and engaging the claw portion with the groove portion. Further, when the claw portion of the fixing member is engaged with the groove portion of the second member, the fixing member cannot be rotated, and in this state, the head of the fixing member is rotated to apply force to the connection portion, Make it easy to break the connection.

  Further, in the fixing structure according to the present invention, the first member has a concave portion in which the through hole is formed in a bottom, and the head portion of the fixing member is accommodated in the concave portion and is fitted therein. And having an operation part for performing an operation of rotating the head on the opposite side of the connecting part with the shaft part.

  In the present invention, the first member is formed with a recess having a shape that fits with the head of the fixing member, and a through-hole through which the shaft portion of the fixing member is inserted is formed at the bottom of the recess. When the first member and the second member are fixed by the fixing member, the head of the fixing member is accommodated in the concave portion of the first member, and a sense of unity in design can be generated. In addition, an operation unit is provided on the head of the fixed member to facilitate rotation of the head. Thereby, after fixing a 1st member and a 2nd member, a head can be rotated and a connection part can be destroyed easily and fixation can be cancelled | released.

  The display device according to the present invention fixes the first cabinet and the second cabinet by a fixing member that engages with the second cabinet through a through hole formed in the first cabinet, and displays an image. In the display device in which display means for displaying is housed in the first cabinet and the second cabinet, the fixing member can be inserted through the through hole and engages with the second cabinet. A shaft portion provided with an engagement means, a head that cannot be inserted through the through hole, and that contacts the first cabinet; and a connection portion that connects the shaft and the head. And when the shaft is engaged with the second cabinet and the force is applied to the head in a direction different from the axial direction of the shaft, the connection is broken. In any way It is characterized in.

  In the present invention, the connecting portion connecting the shaft portion and the head portion of the fixing member is broken when a force is applied to the head in a direction different from the axial direction. The through hole formed in the first cabinet of the display device is engaged with the second cabinet through the shaft portion of the fixing member, and the head of the fixing member is brought into contact with the first cabinet, thereby the second cabinet and the head. By sandwiching the first cabinet between the parts, the first cabinet and the second cabinet are fixed. In this state, when the connection portion is broken by applying a force to the head of the fixing member, the shaft of the fixing member remains engaged with the second cabinet, and the first cabinet and the fixing member have the first head. The holding of the cabinet is released and the display device can be disassembled.

  Further, the fixing member according to the present invention is formed continuously on the shaft portion on which the flexible claw portion is formed, a head portion having a larger diameter than the shaft portion, and the shaft portion. A hole is drilled in a direction intersecting the axial direction, and includes a connecting portion that connects the shaft portion and the head portion, and a force is applied to the head portion in a direction different from the axial direction of the shaft portion. In this case, the connection portion is broken.

  In this invention, a nail | claw part is formed in the axial part of a fixing member, and two members are fixed easily and reliably by engagement of a nail | claw part. Further, a hole is made in the connecting portion connecting the shaft portion and the head portion of the fixing member to weaken the strength so that the weak strength connecting portion is easily broken when a force is applied to the head portion. Thereby, fixation of two members can be cancelled | released easily.

  In the case of the present invention, the connecting member that connects the shaft portion and the head portion of the fixing member is configured to be destroyed when a force is applied to the head in a direction different from the axial direction. And since fixation of the 2nd member can be cancelled | released easily and disassembly of an apparatus can be performed easily, time, cost, etc. required for recycling or disposal of an apparatus, etc. can be reduced.

  Further, in the case of the present invention, the hole is formed in a direction intersecting the axial center direction of the shaft portion, so that the strength of the connection portion is weakened and the connection is weak when force is applied to the head. Since the portion is easily broken, the first member and the second member can be easily fixed, and the time and cost required for recycling or disposal of the device can be reduced.

  Further, in the case of the present invention, the fixing member and the first member are made of synthetic resin, so that the fixing part is composed of parts of the same material after the assembly of the device, and the fixing member and the first member are Since it is possible to create a sense of unity in design, the aesthetics of the device can be enhanced.

  In addition, according to the present invention, the fixing member and the second member are formed of synthetic resin, so that when the connecting portion of the fixing member is broken when the device is disassembled, the shaft portion of the fixing member is Although it is in a state of being engaged with the member of 2, since the shaft portion of the fixing member and the second member are made of the same material, the engagement between the shaft portion of the fixing member and the second member is not released. Recycling or disposal can be performed, and time and cost required for recycling or disposal of equipment can be reduced.

  Further, according to the present invention, a flexible claw portion is formed on the shaft portion of the fixing member, and a hole portion that engages the shaft portion and a groove portion that engages with the claw portion are provided on the second member. By doing so, the first member and the second member can be easily obtained by inserting the fixing member into the hole of the second member through the through hole of the first member and engaging the claw portion with the groove portion. Therefore, the time and cost required for assembling the device can be reduced. Further, when the claw portion and the groove portion are engaged, the fixing member is locked so as not to rotate, so that the head portion of the fixing member can be easily rotated in the state where the claw portion and the groove portion are engaged. Since a force can be applied to the connecting portion, the connecting portion can be easily broken, and the fixing can be released, so that the time and cost required for recycling or disposal of the device can be reduced.

  Further, according to the present invention, when the through hole through which the shaft portion of the fixing member is inserted is formed in the bottom of the recess provided in the first member, and the shaft portion of the fixing member is inserted through the through hole, the fixing member When the first member and the second member are fixed by the fixing member, the head of the fixing member is in the recess of the first member. It can be accommodated and a sense of unity in design can be generated, so that the aesthetics of the device can be enhanced. Moreover, since it can make it easy to rotate a head by setting it as the structure which provides the operation part for performing operation which rotates a fixing member in a head, after fixing a 1st member and a 2nd member By rotating the head, the connecting portion can be easily broken to release the fixing, and the time and cost required for recycling or disposal of the device can be reduced.

  Further, in the case of the present invention, the connecting portion that connects the shaft portion and the head portion of the fixing member is configured to be destroyed when a force is applied to the head in a direction different from the axial direction. The cabinet and the second cabinet can be easily released and the display device can be easily disassembled, so that the time and cost required for recycling or disposal of the display device can be reduced. it can.

  In the case of the present invention, the claw portion is formed on the shaft portion of the fixing member, and the claw portion is engaged with the other member to fix the two members. Since it can be performed reliably, the time and cost required for assembling the equipment can be reduced. In addition, by making a hole in the connecting part that connects the shaft part and the head of the fixing member, the strength of the connecting part is weakened, and when the force is applied to the head, the connecting part with low strength is easy Therefore, the fixing of the two members can be easily released, and the time and cost required for recycling or disposal of the device can be reduced.

Hereinafter, the present invention will be specifically described with reference to the drawings showing embodiments thereof. Note that in this embodiment, a liquid crystal display device including a liquid crystal panel is described as an example of the display device.
FIG. 1 is a rear perspective view showing a configuration of a liquid crystal display device according to the present invention. In the figure, reference numeral 1 denotes a front cabinet covering the surface of the liquid crystal display device, in which a substantially rectangular hole for exposing a liquid crystal panel 70 (shown in FIG. 4) having a display surface for displaying an image is formed. It has a substantially rectangular frame shape. The front cabinet 1 is made of synthetic resin, and the peripheral portion of the front cabinet 1 is bent at a substantially right angle to form a peripheral wall 11.

  The rear cabinet 2 that fits with the front cabinet 1 and accommodates the liquid crystal panel 70, the circuit board, etc. in the space between the front cabinet 1 is formed of synthetic resin, and the periphery of the substantially rectangular back surface is bent at a substantially right angle. Thus, a tray shape having a peripheral wall 21 is formed. .. Are formed at the four corners of the rear surface of the rear cabinet 2, and one recess 22 is formed at a position between the upper two recesses 22. That is, a total of five recesses 22, 22... Are formed on the rear surface of the rear cabinet 2. Through holes 23 (illustrated in FIG. 4) are formed at the bottoms of the recesses 22, 22..., And the front cabinet 1 and the rear cabinet 2 are engaged with the front cabinet 1 through the through holes 23 from the recesses 22, 22. It is fixed by five rivets (fixing members) 50, 50. This fixing structure will be described later.

  The liquid crystal display device includes a front cabinet 1 and a rear cabinet 2, and a stand 4 for supporting a liquid crystal panel, a circuit board, and the like housed therein. The stand 4 has a substantially rectangular plate-shaped base portion 41 and a substantially inverted L-shaped side view, one end of the L-shape is connected to the base portion 41, and the other end is connected to the rear surface of the rear cabinet 2. It has the connection part 42 which connects the rear cabinet 2 and the base part 41. The stand 4 allows the liquid crystal display device to be stably placed on, for example, a television stand or a desk with the video display surface facing the user side.

  FIG. 2 is a schematic view showing the configuration of the rivet 50 according to the present invention, where (a) shows a side view of the rivet 50 and (b) and (c) show views seen from both ends of the rivet 50. . FIG. 3 is an enlarged cross-sectional view taken along line III-III in FIG. The rivet 50 is formed of a synthetic resin and has a substantially cylindrical shaft portion 51, a substantially cylindrical head portion 52 having a diameter larger than that of the shaft portion 51, and a substantially cylindrical shape having a diameter substantially equal to the diameter of the shaft portion 51. None, and includes a connecting portion 53 that connects the shaft portion 51 and the head portion 52 so that the axes coincide with each other.

  The shaft portion 51 includes a slit that penetrates from one side around the shaft portion 51 to the other side, including the shaft center, from the opposite end on the side connected to the head 52 by the connection portion 53 to the approximate center in the axial length direction. 54 is formed, and a tip portion of the shaft portion 51 is divided into two by a slit 54. Plate-like claw portions 55, 55 project in the radial direction from the bifurcated tip portion of the shaft portion 51, and the claw portions 55, 55 are connected to the connection side by the connection portion 53 from the tip side of the shaft portion 51. It has a substantially trapezoidal shape that is inclined to widen. The two claw portions 55 and 55 are formed symmetrically with the axis of the shaft portion 51 in between. Since the rivet 50 is formed of synthetic resin, the bifurcated tip portion of the shaft portion 51 can be bent inwardly of the shaft portion 51 so as to narrow the interval between the slits 54.

  The head 52 has a substantially circular plane at the end opposite to the connection side by the connecting portion 53, and an elongated hole-shaped rotation operation groove 56 surrounding the center is formed on the circular plane. The shape of the rotation operation groove 56 in the depth direction is an arc shape whose both ends are shallow and whose center is deep. For example, the periphery of a disk-shaped coin can be inserted into the rotation operation groove 56 to easily rotate the head 52. It is like that.

  The connection portion 53 having a substantially cylindrical shape is formed with three strength adjustment holes 57, 57... Penetrating from one side of the periphery of the connection portion 53 to the other side so as to intersect the axis. By forming the three strength adjustment holes 57, 57..., Six openings are arranged around the connection portion 53 at equal intervals. Since the strength adjusting holes 57, 57... Are formed in the connecting portion 53, the strength is weaker than that of the shaft portion 51, and it is easily broken when a force is applied from the outside. For example, when the shaft portion 51 is locked by the claw portion 55 so as not to rotate and a force for rotating the head portion 52 is applied, the connection portion 53 having a low strength is broken, and the shaft portion 51 and the head portion 52 are It is supposed to be a separate body.

  FIG. 4 is an enlarged cross-sectional view showing a state before the fixing portion is fixed by the rivet 50 of the liquid crystal display device according to the present invention. The recess 22 formed in the rear cabinet 2 has a shape recessed substantially in the same shape as the head 52 of the rivet 50, and a through-hole 23 having substantially the same diameter as the shaft 51 of the rivet 50 is formed at the bottom of the recess 22. Is formed. Accordingly, the shaft portion 51 of the rivet 50 is inserted into the through hole 23 of the rear cabinet 2 so that the head portion 52 can be fitted into the concave portion 22, and the concave portion 22 and the head portion 52 are fitted. In the state, the outer surface (rear surface) of the rear cabinet 2 and the end surface on the head 52 side of the rivet 50 form a continuous plane. Further, the shaft portion 51 of the rivet 50 is provided with claw portions 55 and 55 projecting in the radial direction, but the claw portions 55 and 55 are placed inside the shaft portion 51 by a slit 54 formed at the tip of the shaft portion 51. So that the through hole 23 of the rear cabinet 2 can be inserted.

  On the inner surface side of the front cabinet 1, a cylindrical shape having an insertion hole 12 a having substantially the same diameter as the shaft portion 51 of the rivet 50 at a position facing the through hole 23 when the front cabinet 1 and the rear cabinet 2 are fitted. The rivet receiving portions 12 are provided in a protruding manner. Further, on the inner surface side of the rear cabinet 2, a cylindrical projection 24 having a diameter larger than that of the through hole 23 is provided so as to surround the periphery of the through hole 23. The inner diameter of the cylindrical projection 24 of the rear cabinet 2 is The outer diameter of the rivet receiving portion 12 of the front cabinet 1 is substantially equal. Thereby, when the front cabinet 1 and the rear cabinet 2 are fitted, the rivet receiving portion 12 of the front cabinet 1 and the cylindrical protrusion 24 of the rear cabinet 2 are fitted.

  Further, the rivet receiving portion 12 of the front cabinet 1 is formed with engagement grooves 13 and 13 that engage with the claw portions 55 and 55 of the shaft portion 51 of the rivet 50 inserted into the insertion hole 12a. The widths of the engagement grooves 13 and 13 are substantially equal to the widths of the claw portions 55 and 55, and the two engagement grooves 13 and 13 are formed at opposing positions in the rivet receiving portion 12. The distal end portion of the shaft portion 51 that is bent and inserted into the insertion hole 12a returns to bend when the claw portions 55 and 55 and the engagement grooves 13 and 13 are engaged. In this state, the rivet 50 is moved to the rivet receiving portion 12. It cannot be pulled out of. Therefore, the front cabinet 1 and the rear cabinet 2 are fitted, and the rivet 50 is inserted into the rivet receiving portion 12 of the front cabinet 1 through the through-hole 23 of the rear cabinet 2, and the claw portions 55 and 55 of the rivet 50 and the rivet 50 are inserted. By engaging the engagement grooves 13 and 13 of the receiving portion 12, the front cabinet 1 and the rear cabinet 2 can be fixed in a fitted state.

  Further, the front cabinet 1 is provided with a columnar screw receiving portion 14 having a screw hole inside in the vicinity of the position where the rivet receiving portion 12 is provided. In the screw receiving portion 14, a fixing bracket 65 for fixing the liquid crystal panel 70 for displaying an image is screwed to a space formed inside the front cabinet 1 and the rear cabinet 2 with a screw 60. The liquid crystal panel 70 is sandwiched and fixed between the fixing bracket 65 screwed and the front cabinet 1.

  FIG. 5 is an enlarged cross-sectional view showing a state after the fixing portion is fixed by the rivet 50 of the liquid crystal display device according to the present invention. In assembling the liquid crystal display device, first, the liquid crystal panel 70 is fixed to the front cabinet 1 using the screws 60 and the fixing bracket 65, the rear cabinet 2 is then fitted to the front cabinet 1, and then the rivets 50 are attached to the rear cabinet 2. This can be done by pushing through the through hole 23 into the rivet receiving portion 12 of the front cabinet 1.

  When the front cabinet 1 and the rear cabinet 2 are fixed by the rivets 50, the claw portions 55 and 55 formed in the shaft portion 51 of the rivet 50 inserted through the through hole 23 of the rear cabinet 2 are connected to the rivet receiving portion 12. In this state, the rivet 50 is locked so as not to rotate about the shaft center.

  FIG. 6 is an enlarged cross-sectional view showing a state after the fixation of the fixed portion by the rivet 50 of the liquid crystal display device according to the present invention is released. When releasing the fixing of the front cabinet 1 and the rear cabinet 2 by the rivet 50, that is, when disassembling the liquid crystal display device, for example, a coin is inserted into the rotation operation groove 56 formed in the head 52 of the rivet 50, and the rivet Applying force to rotate 50 heads 52.

  However, in the state where the claw portions 55 and 55 of the rivet 50 and the engaging grooves 13 and 13 of the rivet receiving portion 12 are engaged, the shaft portion 51 of the rivet 50 is not rotatable, so that the head against the engagement. When the force for rotating 52 is continuously applied, the connecting portion 53, which is a portion where the strength of the rivet 50 is weak, is broken. When the connecting portion 53 of the rivet 50 is broken, the shaft portion 51 and the head portion 52 of the rivet 50 are divided, so that the front cabinet 1 and the rear cabinet 2 cannot be fixed by the rivet 50, and the fixing is released. The At this time, the divided shaft portion 51 remains in the rivet receiving portion 12, but the front cabinet 1 and the rivet 50 are both formed of synthetic resin, and therefore the front cabinet 1 and the shaft portion 51 are separated. Recycling or disposal can be performed.

  In the liquid crystal display device having the above configuration, after the front cabinet 1 and the rear cabinet 2 are fitted, the rivet 50 is inserted through the through hole 23 from the recess 22 of the rear cabinet 2, and the rivet receiving portion 12 of the front cabinet 1 is inserted. By pushing in, the front cabinet 1 and the rear cabinet 2 can be fixed, so that the liquid crystal display device can be easily assembled. In addition, after fixing the front cabinet 1 and the rear cabinet 2 with the rivets 50, the connecting portion 53 connecting the shaft portion 51 and the head portion 52 of the rivet 50 is broken by applying a force for rotating the head portion 52 of the rivet 50. Thus, the liquid crystal display device can be easily disassembled. In addition, since both the front cabinet 1 and the rivet 50 are made of synthetic resin, even if the connecting portion 53 is broken and the shaft portion 51 of the rivet 50 is left in the rivet receiving portion 12 of the front cabinet 1, recycling is possible. Or disposal etc. can be performed. Further, by making the head 52 of the rivet 50 and the recess 22 of the rear cabinet 2 substantially the same shape, when the front cabinet 1 and the rear cabinet 2 are fixed by the rivet 50, the rivet 50 protrudes to the back of the liquid crystal display device. Therefore, since the recess 22 is filled with the head 52 of the rivet 50 on the back surface of the liquid crystal display device, a sense of unity in the design of the liquid crystal display device can be obtained. Furthermore, the rear cabinet 2 and the rivet 50 are both made of synthetic resin, so that a sense of unity in the design of the liquid crystal display device can be obtained. Further, if the head 52 of the rivet 50 protrudes from the rear surface of the rear cabinet 2, a force other than rotation may be applied to the head 52 to destroy the connection portion 53. Since it is accommodated in the two concave portions 22, no force other than rotation is applied.

  In the present embodiment, the liquid crystal display device has been described as an example of the display device. However, the present invention is not limited to this, and other display devices such as a CRT display or a rear projector may be used. Other devices may not be used, and the same configuration can be applied as long as the device has a structure in which two members are fixed using a fixing member. Moreover, although the rear cabinet 2 is made of a synthetic resin, the present invention is not limited to this, and the rear cabinet 2 may be made of other materials such as wooden or metal. Moreover, although the front cabinet 1 and the rivet 50 are made of synthetic resin, the present invention is not limited to this, and the front cabinet 1 and the rivet 50 are made of the same material, or at least different materials that do not need to be separated at the time of recycling or disposal. It may be made.

  Further, the strength adjusting holes 57, 57... Are formed in the connecting portion 53 of the rivet 50 so as to weaken the strength of the connecting portion 53. However, the present invention is not limited to this. Other configurations such as forming into a small cylindrical shape may be used. Moreover, although the recessed part 22 was formed in the rear cabinet 2 and it was set as the structure by which the head 52 of the rivet 50 was accommodated in the recessed part 22, it is not restricted to this, Without forming the recessed part 22 in the rear cabinet 2 When only the through hole 23 is formed and the front cabinet 1 and the rear cabinet 2 are fixed with the rivets 50, the head 52 of the rivet 50 may protrude from the rear surface of the rear cabinet 2. In this case, the rivet Instead of rotating the 50 heads 52 to destroy the connection part 53, the connection part 53 may be broken by applying a force in one direction to the peripheral side surface of the head 52.

It is a back perspective view which shows the structure of the liquid crystal display device which concerns on this invention. It is a schematic diagram which shows the structure of the rivet which concerns on this invention. It is an expanded sectional view by the III-III line of FIG. It is an expanded sectional view which shows the state before fixation of the fixing part by the rivet of the liquid crystal display device which concerns on this invention. It is an expanded sectional view which shows the state after fixing of the fixing part by the rivet of the liquid crystal display device which concerns on this invention. It is an expanded sectional view which shows the state after the fixation cancellation | release of the fixing part by the rivet of the liquid crystal display device which concerns on this invention.

Explanation of symbols

1 Front cabinet (second member, second cabinet)
2 Rear cabinet (first member, first cabinet)
4 Stand 12 Rivet receiving part 12a Insertion hole (hole part)
13 Engaging groove (groove)
22 concave portion 23 through hole 50 rivet (fixing member)
51 Shaft part 52 Head part 53 Connection part 54 Slit 55 Claw part 56 Rotation operation groove (operation part)
57 Strength adjustment hole 70 LCD panel (display means)

Claims (8)

In a fixing structure in which the first member and the second member are fixed by a fixing member that is inserted through a through-hole formed in the first member and engages with the second member.
The fixing member is
A shaft portion capable of being inserted through the through hole and provided with an engaging means for engaging with the second member;
A head that cannot be inserted through the through-hole, and abuts against the first member;
A connecting portion for connecting the shaft portion and the head portion,
The connection portion is broken when a force is applied to the head in a direction different from the axial direction of the shaft portion with the shaft portion engaged with the second member. This is a fixed structure.   2. The connection portion can be inserted through the through hole, is formed continuously with the shaft portion, and a hole is formed in a direction intersecting the axial center direction of the shaft portion. Fixed structure as described in.   The fixing structure according to claim 1, wherein the fixing member and the first member are made of synthetic resin.   The fixing structure according to any one of claims 1 to 3, wherein the fixing member and the second member are made of synthetic resin. The engaging means of the fixing member is a flexible claw portion formed on the shaft portion,
The second member is
A hole into which the shaft portion of the fixing member fits;
A groove portion formed in the hole portion and engaged with the claw portion,
The fixing structure according to any one of claims 1 to 4, wherein the shaft portion of the fixing member is not rotatable when the claw portion and the groove portion are engaged. The first member has a recess in which the through hole is formed at the bottom,
The head of the fixing member is
It is adapted to be accommodated in the recess,
The fixing structure according to any one of claims 1 to 5, further comprising an operation portion for performing an operation of rotating the head portion on a side opposite to a connection portion with the shaft portion. Display means for displaying an image by fixing the first cabinet and the second cabinet by a fixing member that engages with the second cabinet through a through-hole formed in the first cabinet. And in the display device housed in the second cabinet,
The fixing member is
A shaft portion that is capable of being inserted through the through hole, and provided with an engaging means for engaging with the second cabinet;
A head that cannot be inserted through the through-hole, and abuts against the first cabinet;
A connecting portion for connecting the shaft portion and the head portion,
The connection portion is broken when a force is applied to the head in a direction different from the axial direction of the shaft portion with the shaft portion engaged with the second cabinet. A display device characterized by the above. A shaft portion on which a claw portion having flexibility is formed;
A head having a larger diameter than the shaft,
A hole formed in a direction that is continuously formed in the shaft portion and intersects the axial direction of the shaft portion, and includes a connection portion that connects the shaft portion and the head portion,
The fixing member, wherein when the force is applied to the head in a direction different from the axial direction of the shaft portion, the connection portion is broken.

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