JP2011241973A - Damper, light source device, and display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a damper that is attached by fitting into a hole opened on a member and prevents displacement, to provide a light source device that reduces chattering sound with the damper, and to provide a display device with the same.SOLUTION: The damper includes: a holder 2 having an attachment 21 that has to be fit into the hole 11 opened on one of the two members which separate from and face to each other, and a holding part 22 that lies to the attachment 21 and is cylindrical; and a buffer 3 that is held by fitting inside the holding part 22. A fitting of the attachment 21 into the hole 11 allows: the buffering device A to be attached without displacement; displacement due to aged deterioration to be eliminated; vibration to be prevented for a long period; and chattering sound due to the vibration to be eliminated.

Description

  The present invention relates to a light source device that can suppress vibration generated by devices such as a shock absorber and a power supply circuit board that are attached by being inserted into a hole, and can eliminate noise caused by vibration by the shock absorber, and a display device including the same. .

  A display device such as a television includes a display panel having a display surface on the front side and forming a rectangular parallelepiped, a light source that irradiates light to the display panel, and a support body that supports the light source and a peripheral portion of the display panel on the rear side. And a plurality of circuit boards such as a power circuit board mounted on the rear side of the support, and a cover for concealing the rear side of the circuit board and the support, the peripheral portion of the cover being the support It is fastened with a male screw.

  In recent years, display devices are becoming thinner, and the distance between the circuit board and the cover is shortened. Along with this, the circuit board vibrates due to sound generated when the transformer mounted on the power supply circuit board is operated, and the sound due to this vibration becomes a volume that can be heard, resulting in an audible sound. Further, as the display device is made thinner, the cover tends to be changed from a synthetic resin to a thin metal plate. However, in the case of a thin metal plate cover, an eddy current is applied to the cover due to the influence of the transformer. Occurs, the cover is shaken under the influence of magnetic flux, and a sound is produced.

  To suppress vibration of a circuit board on which a component such as a transformer is mounted, contact the component between the inner surface of the case in which the circuit substrate is mounted and the component mounted on the circuit board. A plate-like cushioning material having a plurality of cuts is interposed on the surface to be cut (see, for example, Patent Document 1).

Japanese Utility Model Publication No. 58-29888

  However, if the cushioning material is merely interposed between the inner surface of the case and the component mounted on the circuit board as in Patent Document 1, the position of the cushioning material is not stable, and the position is shifted from the appropriate position. The buffer function may be impaired.

  In order to prevent the displacement of the cushioning material, it is conceivable to stick the cushioning material with an adhesive. However, when pasting with adhesive, the pasting force decreases due to aging degradation of the adhesive, the pasting state cannot be maintained, the cushioning material will be displaced and fall, and the cushioning material pasting work At times, there is a problem in that the buffering position of the cushioning material is likely to be shifted and variations in the position of the buffering are likely to increase.

  The present invention has been made in view of such circumstances, and a main purpose thereof is a shock absorber that can be attached by being fitted into the hole of a member in which a hole is formed, and can prevent displacement of the attachment position. Another object of the present invention is to provide a light source device and a display device including the light source device that can eliminate sound generation by the buffer. Another object is to provide a shock absorber, a light source device, and a display device that can prevent the shock absorber held by fitting in the holding portion from being displaced in the extraction direction.

  The shock absorber according to the present invention is a shock absorber attached by fitting into a hole, and is fitted to the holding portion having a mounting portion to be inserted into the hole and a holding portion connected to the mounting portion, and the holding portion. It is characterized by providing the buffer body hold | maintained by.

  In the present invention, the shock absorber can be attached without displacement by fitting the attachment portion into the hole of the member in which the hole is opened, and there is no displacement of the shock absorber due to deterioration over time. Therefore, when the buffer body comes into contact with the other member facing the one member where the hole is opened, the relative vibration of the two members can be suppressed over a long period of time. It is possible to eliminate the sound of sound. Further, it can be used as a spacer that maintains a distance between two opposing members that are spaced apart from each other, and can be formed in a relatively small size corresponding to the spacer, so that it can be obtained at a relatively low cost.

In the shock absorber according to the present invention, it is preferable that the holding portion has a cylindrical shape.
In this invention, since the buffer body can be held by fitting the buffer body into the cylindrical holding portion, any one of the buffer bodies of different types depending on the elastic modulus, length, etc. is shared. A plurality of types of shock absorbers can be easily obtained by fitting and holding the holding body, thereby reducing the cost.

In the shock absorber according to the present invention, it is preferable that the holding portion has a column shape and the shock absorber has a fitting hole into which the holding portion is fitted.
In this invention, since the buffer body can be held by inserting the columnar holding portion into the insertion hole of the buffer body, any of the buffer bodies of different types depending on the elastic modulus, length, etc. By inserting and holding the same in the common holding body, it is possible to easily obtain a plurality of types of shock absorbers and reduce the cost.

Further, in the shock absorber according to the present invention, the holding portion connects the two holding pieces and the holding pieces which are opposed to each other in a direction intersecting with the direction in which the mounting portion is inserted into the hole. It is preferable to have a structure having a connecting portion.
In this invention, since the buffer body can be held by inserting the buffer body between the holding pieces that are separated and opposed to each other, any one of the buffer bodies of different types depending on the elastic modulus, length, etc. By inserting and holding the common holding body, it is possible to easily obtain a plurality of types of shock absorbers, and it is not necessary to perform hole processing or the like on the shock absorber, thereby reducing the cost.

Further, in the shock absorber according to the present invention, the holding portion has a cylindrical shape having a central axis in a direction intersecting with a fitting direction in which the mounting portion is fitted, and the shock absorber is fitted in the holding portion. It is preferable to have a configuration including a fitting shaft portion and a flexible portion extending outward from the outer surface of the holding portion from at least one end of the fitting shaft portion.
In the present invention, the length in the insertion direction, in other words, the length in the buffering direction can be made equal among the plurality of shock absorbers without being affected by variations in the amount of fitting. Multiple shock absorbers with the same length can be easily made, and the length in the buffer direction can be maintained without being affected by the displacement in the extraction direction, and an appropriate buffer function can be maintained. Can do.

Further, in the shock absorber according to the present invention, the holding portion has a thin-walled hinge at one place in the circumferential direction, and is divided at a place separated from the hinge in the circumferential direction, with the hinge as a fulcrum. It is preferable that a movable portion that can be swung is formed, and that the movable portion has a rocking stop portion that prevents rocking of the movable portion.
According to the present invention, when the fitting shaft portion of the shock absorber is fitted to the cylindrical holding portion having the central axis in the direction intersecting with the fitting direction in which the mounting portion is fitted, the movable portion is movable by the rocking stop portion. Since the part of the holding portion in the circumferential direction can be released by releasing the rocking prevention of the portion, the fitting shaft portion of the shock absorber can be easily fitted, and the rocking stop portion Since the swinging of the movable part can be prevented, it is possible to prevent the buffer body from being displaced in the buffer direction.

In the shock absorber according to the present invention, it is preferable that at least one of the holding portion and the shock absorber has a retaining portion that prevents the shock absorber from being displaced in the pulling direction.
In this invention, it is possible to prevent the buffer body fitted to the holding part from being displaced in the removal direction by the retaining part, and the buffer body can be kept in the fitted state. When the shock absorber is transported, during the process of assembling the appropriate device with the shock absorber attached, the shock absorber is not displaced in the removal direction after the device is properly assembled, and an appropriate shock absorbing function can be maintained. Therefore, even when a large amount of equipment is produced as appropriate, it is possible to incorporate a shock absorber having an appropriate shock absorbing function, to improve the assembly workability, and to modify the incorporated shock absorber. Therefore, the mass production workability of the device can be improved as appropriate.

Further, in the shock absorber according to the present invention, the holding portion is partially removed in the circumferential direction, and the fitting shaft is engaged with the fitting shaft portion at an edge of the lacked portion. It is preferable to have a retaining portion that prevents the portion from being displaced in the direction opposite to the insertion direction.
In this invention, since the retaining shaft portion is engaged with the fitting shaft portion by inserting the fitting shaft portion into the holding portion from the removed portion where a part of the circumferential direction is removed, Since the buffer body can be held by a simpler operation, and the locking portion can be released by operating the locking portion in the separation direction, the buffer body can be easily removed.

Further, in the shock absorber according to the present invention, the holding body extends between the attachment portion and the holding portion in a direction intersecting with the insertion direction in which the attachment portion is inserted, and the insertion position of the attachment portion is set. It is preferable to have a configuration having a regulating piece to be regulated.
In this invention, when the attachment portion is inserted into the hole of the member in which the hole is opened, the restriction piece hits the edge of the hole, and the insertion position of the attachment portion can be restricted. The shock absorber can be quickly attached without the portion being insufficiently fitted, and the attachment workability can be improved.

In the shock absorber according to the present invention, it is preferable that the restricting piece has flexibility and a tip end portion is biased toward the attachment portion.
In this invention, when the attachment portion is inserted into the hole of the member having the hole, the restriction piece hits the edge of the hole, the restriction piece bends toward the buffer body, and the hole is opened. Since the restricting piece is pressed around the hole of the member, the backlash of the shock absorber can be eliminated.

In the shock absorber according to the present invention, the mounting portion includes a base portion where the holding portion is continuous and a claw portion that extends from the tip of the base portion to the holding portion side and is to be locked to an edge portion of the hole. It is preferable to include a pinched portion that extends from the claw portion to a position facing the outer surface of the holding portion and biases the claw portion by a pinching operation.
In this invention, the attachment portion is inserted into the hole of the member in which the hole is opened, and the nail portion is locked to the edge of the hole, and the pinching portion is picked, thereby Since the claw portion is biased in the direction in which the engagement with the edge portion of the hole is released, the attachment portion can be easily extracted from the hole, and the shock absorber can be easily removed.

In the shock absorber according to the present invention, it is preferable that the shock absorber has a configuration in which an edge portion of the insertion hole is biased toward the attachment portion.
In this invention, when the mounting portion is inserted into the hole of the member in which the hole is opened, the edge of the insertion hole of the buffer hits the edge of the hole, and the edge of the insertion hole of the buffer Bends toward the holding part, and the buffer is pressed against the edge of the hole of the member in which the hole is opened, so that the degree of adhesion with the member in which the hole is opened can be increased, and the vibration suppressing effect is enhanced. be able to.

The light source device according to the present invention has a plate shape and supports a light source on one surface, a cover for concealing the other surface side of the support, and a space between the cover and the support. And the mounting portion is fitted into the circuit board that is attached to one of the cover and the support and supplies power to the light source, and the other hole of the cover and the support or the circuit board. And a shock absorber according to the present invention.
In the present invention, the hole is formed in one of the circuit board and the cover or the support body on which the circuit board is not mounted, so that the shock absorber can be removed by simply inserting the mounting portion into the hole. Can be installed without displacement, and can eliminate displacement due to aging, can suppress relative vibration of the circuit board and cover over a long period of time, and can eliminate noise caused by vibration. .

In addition, a display device according to the present invention includes a display unit having a display surface on one side and the light source device of the invention described above disposed on the other side of the display unit.
In this invention, since the shock absorber included in the light source device is attached by fitting into the hole, there is no displacement of the shock absorber due to deterioration over time, and vibration of the circuit board mounting portion can be suppressed over a long period of time. In addition, it is possible to eliminate sound generation due to vibration over a long period of time.

According to the present invention, the shock absorber can be attached without displacement by fitting the attachment portion into the hole of the member in which the hole is opened, and the displacement of the shock absorber due to deterioration over time can be eliminated. it can. Therefore, when the buffer body comes into contact with the other member facing the one member where the hole is opened, the relative vibration of the two members can be suppressed over a long period of time, and the noise caused by the vibration can be reduced. It can be eliminated, and it can be used as a spacer that maintains the distance between two opposing members that are spaced apart.
Further, according to the present invention, since the shock absorber is fitted in the cylindrical holding portion having the central axis in the direction intersecting with the fitting direction in which the attachment portion is fitted, the variation in the fitting amount of the shock absorber is affected. It is possible to easily make a plurality of shock absorbers with the same length in the buffer direction without being affected, and to maintain the length in the buffer direction without being affected by the positional deviation in the extraction direction. Can keep a good buffer function.

It is a front view which shows the structure of the shock absorber which concerns on this invention. It is a perspective view which shows the structure of the shock absorber which concerns on this invention. It is sectional drawing which shows the use condition of the shock absorber which concerns on this invention. It is a cross-sectional top view which shows the structure of the display apparatus which concerns on this invention. It is a front view which shows the other structure of the shock absorber which concerns on this invention. It is sectional drawing which shows the use condition of the shock absorber which concerns on this invention. It is a front view which shows the other structure of the shock absorber which concerns on this invention. It is sectional drawing which shows the use condition of the shock absorber which concerns on this invention. It is a front view which shows the other structure of the shock absorber which concerns on this invention. It is sectional drawing which shows the use condition of the shock absorber which concerns on this invention. It is a vertical front view which shows the other structure of the holding body of the shock absorber which concerns on this invention. It is a side view which shows the other structure of the holding body of the shock absorber which concerns on this invention. It is a perspective view which shows the other structure of the buffer body of the shock absorber which concerns on this invention. It is a side view which shows the other structure of the shock absorber which concerns on this invention. It is sectional drawing which shows the use condition of the shock absorber which concerns on this invention. It is a vertical front view which shows the other structure of the shock absorber which concerns on this invention. It is a vertical front view which shows the other structure of the shock absorber which concerns on this invention.

Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof.
Embodiment 1
FIG. 1 is a front view showing a configuration of a shock absorber according to the present invention, FIG. 2 is a perspective view showing a configuration of the shock absorber, and FIG. 3 is a cross-sectional view showing a use state of the shock absorber.

  In the illustrated shock absorber A, a circuit board 1 having a hole 11 penetrating in the thickness direction is attached to one of two members that are spaced apart from each other and attached to the hole 11 of the circuit board 1. A holding body 2 having a holding portion 22 which has a columnar shape, has an attachment portion 21 fitted and locked into the hole 11 on one end side, and has a bottomed insertion hole 22a on the other end side; The rubber cushioning body 3 having a columnar shape and having one end side fitted and held in the fitting hole 22a.

  The holding body 2 is formed in a substantially column shape by a synthetic resin material having low flexibility, and is extended between the attachment portion 21 and the holding portion 22 in a direction intersecting with the fitting direction in which the attachment portion 21 is inserted. A restriction piece 23 for restricting the insertion position of the portion 21 is integrally provided.

  The mounting portion 21 has a plate-like base portion 21a and two claw portions 21b that are connected to the tip of the base portion 21a and are locked to the edge portion of the hole 11, and in a state where the claw portion 21b is slightly bent. When the mounting portion 21 is inserted into the hole 11 and the claw portion 21b is pulled out of the hole 11, the claw portion 21b is elastically restored and the tip of the claw portion 21b is locked to the edge portion of the hole 11. ing.

  The holding portion 22 has a cylindrical shape, and an insertion hole 22a is formed on the inner side. The restriction piece 23 has flexibility, and the tip portion is biased toward the attachment portion 21 side.

  The buffer body 3 has a cylindrical shape, and the other end is disposed outside the holding portion 22. The buffer body 3 is made of rubber, may be a synthetic resin material having flexibility, or may be a flame retardant material having flexibility. Further, a retaining protrusion is provided on one of the peripheral surface of the buffer body 3 and the peripheral surface of the insertion hole 22a, and a retaining recess that engages with the retaining protrusion is provided on the other side, so that the displacement of the buffer body 3 in the extraction direction is prevented. It is good also as a structure which prevents.

The shock absorber A configured as described above is attached to a light source device B included in a liquid crystal display device such as a television.
FIG. 4 is a cross-sectional plan view showing the configuration of the display device.

  This display device has a display surface for displaying a television image on the front side, a liquid crystal display panel 4 serving as a display portion having a substantially rectangular parallelepiped shape, and a light disposed on the rear side of the display panel 4 to receive light incident from the side surface. A light guide plate 5 that emits light from one surface and irradiates the display panel 4, a plurality of light emitting elements 6 as light sources facing the side surfaces of the light guide plate 5, and a support 7 that supports the light guide plate 5 and the light emitting elements 6. A plurality of circuit boards 1 such as a power circuit board mounted on the rear side of the support body 7 and a cover 8 for concealing the rear side of the circuit board 1 and the support body 7. A liquid crystal television to which A is attached, in other words, a liquid crystal display device.

  The display panel 4 has polarizing plates bonded to the front and rear surfaces, pressed in the thickness direction by the flange members disposed on the four sides of the display panel 4, and held on the support 7 by a plurality of male screws. Yes.

  The light guide plate 5 is made of synthetic resin such as acrylic resin or polycarbonate resin, and is formed in a substantially rectangular shape. A light reflection plate 10 is disposed between the light guide plate 5 and the support 7, and the light guide plate 5 and the display panel are arranged. 4, a plurality of optical sheets 20 are arranged.

  The support body 7 is formed as a whole by forming a metal plate into a substantially rectangular shape, and a plurality of substrate receiving portions 71 projecting rearward are integrally provided on the center side, and the rear side is rearward. A plurality of coupling projections 72 that protrude in the shape of a truncated cone are integrally provided. In addition, a mounting hole 73 is formed in the board receiving portion 71, a through hole 74 is opened in the coupling convex portion 72, and the circuit board 1 is mounted on the rear side of the support 7 by the male screw 9 screwed into the mounting hole 73. It is attached to.

  The circuit board 1 has a plurality of electronic components such as a transformer mounted on one surface. A plurality of insertion holes 12 for mounting the board are formed in the peripheral portion of the circuit board 1, and a plurality of holes 11 for mounting the shock absorber are opened in the vicinity of an electronic component that is likely to be a vibration generation source such as a transformer. Has been. The male screw 9 is inserted into the insertion hole 12, and the male screw 9 is screwed into the mounting hole 73 of the board receiving portion 71, whereby the circuit board 1 is attached to the support body 7. The mounting portion 21 of the shock absorber A is fitted in the hole 11, and the claw portion 21 b is locked around the edge of the hole 11 in a state where the regulating piece 23 is pressed against one surface of the circuit board 1, so that there is no backlash and no displacement. A shock absorber A is attached.

  A square member having a substantially L-shape is fixed to a square portion on the front surface of the support 7, and the light reflection plate 10, the light guide plate 5, and the optical device are slightly larger than the display panel 4 on the front surface inside the corner member. A sheet 20 is placed. A light emitting element substrate 30 on which a plurality of light emitting elements 6 are mounted on one side is disposed on the four sides of the front surface of the support 7.

  The light emitting element substrate 30 is formed in a strip shape, the light emitting elements 6 are juxtaposed along the longitudinal direction, and a bowl-shaped heat radiator 40 is coupled to the other surface of the light emitting element substrate 30, and the light emitting element substrate is interposed via the heat radiator 40. 30 is fixed to the support 7, and the light emitting element 6 faces the side surfaces of the light guide plate 5 on the four sides.

  The cover 8 is formed by forming a thin metal plate into a substantially rectangular deep dish shape, and protrudes forward toward the support body 7 at a position facing the coupling convex portion 72 on the center side with respect to the peripheral mouth portion. A plurality of cylindrical bosses 81 that come into contact with the tips of the coupling protrusions 72 are integrally formed, and are coupled to the support 7 by male screws 41 that are screwed into the through holes 74 of the coupling projections 71 from the cylindrical bosses 81. Thus, the end of the buffer 3 in the shock absorber A comes into contact with the inner surface of the cover 8 so that the distance between the circuit board 1 and the inner surface of the cover 8 is maintained. The separation dimension is about 20 mm where the cover does not contact the electronic component mounted on the circuit board 1.

  In the display device configured as described above, the light source element B, the light guide plate 5, the circuit board 1, the light reflection plate 10, and the cover 8 constitute an edge light type light source device B, and the light source device B, the optical sheet 20 and the display panel 4 constitute a panel module. The cover 8 is coupled to the coupling convex portion 72 of the support 7 in the panel module by the male screw 41, and the cover 8 covers the rear side of the panel module. A translucent panel 42 as an exterior body is affixed to the front side of the display panel 4 in the panel module, and the mouth of the cover 8 is in contact with the periphery of the translucent panel 42 to be dust-proof.

  The cover 8 is made of a thin metal plate, and since the cover 8 is coupled to the coupling convex portion 72 of the support 7, the cover 8 can be thinned so that the entire front and rear thickness is reduced. Since the buffer body 3 of the shock absorber A attached to the circuit board 1 of the light source device is in contact with the inner surface of the cover 8, when the transformer mounted on the circuit board 1 operates, the circuit board 1 and the The vibration of the cover 8 facing the circuit board 1 can be suppressed by the buffer body 3, and the noise caused by this vibration can be eliminated. Further, since the buffer 3 of the shock absorber A attached to the circuit board 1 is in contact with the inner surface of the cover 8 and the distance between the circuit board 1 and the cover 8 is maintained, in other words, the shock absorber A also serves as a spacer. Therefore, even if the cover 8 made of a thin metal plate is hit from the outside, the cover 8 can be prevented from coming into contact with the components mounted on the circuit board 1.

  The shock absorber A can eliminate the displacement of the mounting position because the claw portion 21b is locked around the edge of the hole 11 by fitting the mounting portion 21 into the hole 11 provided in the circuit board 1. In addition, it is possible to eliminate noise caused by vibration over a long period of time, and it is possible to simply attach the hole 11 by fitting. Further, since the shock absorber A also serving as a spacer is formed in a relatively small size that can maintain the distance between the circuit board 1 and the cover 8, it can be obtained at a relatively low cost.

Embodiment 2
FIG. 5 is a front view showing another configuration of the shock absorber A, and FIG. 6 is a cross-sectional view showing a use state of the shock absorber A. The shock absorber A replaces the cylindrical holding portion 22 with a columnar holding portion 24, and holds the rubber shock absorber 3 having a fitting hole 31 into which the holding portion 24 is fitted. 24 is inserted and held.

  A flange portion 24 a that protrudes outward is provided at the front portion of the holding portion 24, and when the holding portion 24 is inserted into the insertion hole 31, the flange portion 24 a is inserted while expanding around the insertion hole 31 of the buffer 3. The holding force is increased by the elastic restoring force after insertion. Note that the flange portion 24a constitutes a retaining portion that prevents the displacement of the buffer body 3 in the withdrawing direction.

The buffer body 3 is formed in a cylindrical shape or a prismatic shape, and a bottomed insertion hole 31 is formed on one surface.
Since other configurations and operations are the same as those of the first embodiment, the same components are denoted by the same reference numerals, and detailed description thereof and description of operations and effects are omitted.

Embodiment 3
FIG. 7 is a front view showing another configuration of the shock absorber A, and FIG. 8 is a cross-sectional view showing a use state of the shock absorber A. The shock absorber A is a holding portion 25 having a substantially concave shape instead of the cylindrical holding portion 22, and a rubber shock absorber 3 formed in a substantially rectangular parallelepiped is fitted and held in the holding portion 25. is there.

  The holding portion 25 includes two holding pieces 25a and 25a facing each other in a direction intersecting with the direction in which the attachment portion 21 is inserted into the hole 11, and a connecting portion 25b for connecting the holding pieces 25a and 25a to the attachment portion 21. And is formed integrally with the mounting portion 21.

When the buffer body 3 is inserted into the holding portion 25, the buffer body 3 is inserted while being bent, and the holding force is increased by the elastic restoring force after the insertion.
The holding pieces 25a, 25a are provided with a retaining projection protruding inward at the tip, and a retaining recess that engages with the retaining projection is provided on the side of the buffer body so that the position of the buffer body 3 in the direction of extraction It is good also as a structure which prevents deviation | shift.
Since other configurations and operations are the same as those of the first embodiment, the same components are denoted by the same reference numerals, and detailed description thereof and description of operations and effects are omitted.

Embodiment 4
FIG. 9 is a front view showing another configuration of the shock absorber A, and FIG. 10 is a cross-sectional view showing a use state of the shock absorber A. This shock absorber A is replaced with a cylindrical holding part 22 as a columnar holding part 24, which is made of rubber and has a fitting hole 31 that is inserted into the holding part 24 without the restricting piece 23. The buffer body 3 is fitted and held in the holding portion 24.

  A flange portion 24 a that protrudes outward is provided at the front portion of the holding portion 24, and when the holding portion 24 is inserted into the insertion hole 31, the flange portion 24 a is inserted while expanding around the insertion hole 31 of the buffer 3. The holding force is increased by the elastic restoring force after insertion. Note that the flange portion 24a constitutes a retaining portion that prevents the displacement of the buffer body 3 in the withdrawing direction.

The buffer body 3 is formed in a columnar shape or a prismatic shape, and a bottomed insertion hole 31 is formed on one surface, and the periphery of the insertion hole 31 is biased in an arc shape toward the mounting portion 21.
Since other configurations and operations are the same as those in the first and second embodiments, the same components are denoted by the same reference numerals, and the detailed description and description of the operations and effects are omitted.

Embodiment 5
11 is a longitudinal front view showing another configuration of the holding body 2, FIG. 12 is a side view showing another configuration of the holding body 2, FIG. 13 is a perspective view showing another configuration of the buffer body 3, and FIG. FIG. 15 is a sectional view showing a use state of the shock absorber A. FIG. In this shock absorber A, instead of the buffer body 3 being fitted in the fitting direction in which the mounting portion 21 is fitted into the hole 11, the buffer body 3a is fitted in a direction crossing the fitting direction, and the buffer body 3a Is configured to prevent displacement in the insertion direction, in other words, displacement in the buffer direction.

  The holding body 2 includes a rectangular cylindrical holding portion 26 having a central axis in a direction intersecting the insertion direction, a plate-like base portion 27a extending from the one side portion 26a of the holding portion 26 in the insertion direction, Two flexible claws 27b, 27b that extend from the tip of the base 27a toward the holding part 26 and are locked to the edge of the hole 11, and further hold from the tips of the claws 27b, 27b Two relay portions 27c and 27c that extend toward the portion 26 and bend in a direction away from the base portion 27a in the middle of the extending direction, and from the tips of the relay portions 27c and 27c in a direction opposite to the claw portions 27b and 27b To the claw portions 27b, 27b from the midway of the relay portions 27c, 27c, and the two picked portions 28, 28 arranged on the outer side of the opposite side portions 26b, 26c extending to the one side portion 26a of the holding portion 26 The claw portion 27b The restricting pieces 29 and 29 for restricting the insertion position of 7b are integrally formed of a synthetic resin material, and the claws 27b and 27b are biased toward the base 27a side by pinching the two picked portions 28 and 28. It is configured to be able to. The base portion 27a and the claw portion 27b constitute the attachment portion 27.

  The rectangular cylindrical holding part 26 is divided at a boundary part between the one opposing side part 26b and the other side part 26d, and a hinge 26e thinner than the other part at the boundary part between the other opposing side part 26c and the other side part 26d. There is formed a movable portion 26f that can swing with the hinge 26e as a fulcrum.

  A flexible locking claw 26g having a substantially U shape is provided at the divided end of the other side portion 26d, in other words, at the tip of the movable portion 26f, and at the divided end portion of one opposing side portion 26b. A cylindrical portion 26j having an engagement hole 26h with which the engagement claw 26g is engaged is provided, and the engagement claw 26g is inserted into the engagement hole 26h, so that the engagement claw 26g has an edge of the engagement hole 26h. It is comprised so that it may be latched by a part. The locking claw 26g and the engagement hole 26h constitute a rocking stop.

  The buffer body 3a is fitted in a rectangular cylindrical holding portion 26, and extends outward from the outer surface of the holding portion 26 from both ends of the fitting shaft portion 32 having a prism shape and the fitting shaft portion 32. It is substantially U-shaped with two flexible portions 33, 33 having a prismatic shape, and is formed of a flexible material such as rubber. The flexible parts 33, 33 constitute a retaining part.

  In this embodiment, when the locking claw 26g having a substantially U shape is inserted into the engaging hole 26h, the locking claw 26g is inserted into the engaging hole 26h while being bent, and the locking claw 26g By elastic restoration, it is locked to the edge of the engagement hole 26h, and the swinging of the movable part 26f is prevented. Further, when the latching claw 26g is bent and the pulling operation is performed from the engagement hole 26h, the latching is released, and the latching claw 26g can be pulled out from the engagement hole 26h. Can be swung. Therefore, the fitting shaft portion 32 of the buffer body 3a can be easily fitted into the rectangular cylindrical holding portion 26 in a state where the movable portion 26f is swung in the opening direction, and thereafter the movable portion 26f. Is swung in the closing direction, and the locking claw 26g is inserted into the engaging hole 26h, thereby preventing the movable portion 26f from swinging.

  The buffer body 3a fitted and held in the holding part 26 is prevented from being displaced in the buffering direction by the movable part 26f, so that the length in the buffering direction is not affected by the variation in the fitting amount. The plurality of shock absorbers A can be made equal, and a plurality of shock absorbers A having the same length in the shock absorbing direction can be easily produced, and the shock absorbing direction is not affected by the displacement in the extraction direction. Can maintain the proper buffering function.

  Since the buffer body 3a is formed in a substantially U-shape and the fitting shaft portion 32 is held in the holding portion 26, the displacement of the fitting shaft portion 32 in the pulling-out direction is displaced by the two flexible portions 33, 33. And the fitting state of the buffer 3a can be maintained.

  In addition, the fitting shaft portion 32 of the buffer body 3a can be easily removed from the holding portion 26 by swinging the movable portion 26f in the opening direction.

When the mounting portion 27 of the shock absorber A is inserted into the hole 11 of the circuit board 1, the claw portion 27 b is bent and the regulating piece 29 is pressed against one surface of the circuit board 1 while being bent, and the claw portion 27 b is Locked around. When the shock absorber A is removed, the two pinched portions 28, 28 are picked, whereby the claw portion 27b of the mounting portion 27 is biased toward the base portion 27a, and the locking of the engaging portion 26g is released. Therefore, the shock absorber A can be easily removed. In addition, it is possible to suppress the tilting of the holding portion 26 in the lateral direction by the picked portions 28 and 28 arranged at the positions facing the opposite side portions 26b and 26c of the holding portion 26, and to provide an appropriate buffer function. Can keep.
Since other configurations and operations are the same as those of the first embodiment, the same components are denoted by the same reference numerals, and detailed description thereof and description of operations and effects are omitted.

Embodiment 6
FIG. 16 is a longitudinal front view showing another configuration of the shock absorber A. FIG. This shock absorber A lacks a part of the circumferential direction of the annular holding portion 26 (the other side portion 26d) that forms a quadrangle, and engages with the fitting shaft portion 32 of the shock absorber 3a at the edge of the lacking portion. Thus, the retaining shaft portions 26k and 26k for preventing the fitting shaft portion 32 from being displaced in the extending direction of the flexible portions 33 and 33 are provided.

  The retaining portions 26k, 26k are projected inward from the edge of the notched portion. Further, the opposing side portions 26b and 26c have some flexibility, and by applying a pressing force in the separation direction to the retaining portions 26k and 26k, the opposing side portions 26b and 26c are bent, and the fitting shaft portion 32 is held by the holding portion. 26 so that it can be fitted into the inside.

  In this embodiment, by pressing the fitting shaft portion 32 of the buffer body 3a toward the holding portion 26 in a state where the fitting shaft portion 32 is applied to a portion where the holding portion 26 is removed, The opposing side portions 26b and 26c bend in the direction of separation, and the fitting shaft portion 32 can be inserted, and the retaining portions 26k and 26k are external surfaces of the fitting shaft portion 32 due to elastic restoration of the opposing side portions 26b and 26c. It is possible to prevent the fitting shaft portion 32 from being displaced in the extending direction of the flexible portions 33, 33, in other words, from being displaced in the buffer direction.

Further, by pressing the retaining portions 26k, 26k of the holding portion 26 in the separating direction, the opposing side portions 26b, 26c are bent in the separating direction, and the fitting shaft portion 32 can be taken out from the holding portion 26.
Since other configurations and operations are the same as those of the first and fifth embodiments, the same components are denoted by the same reference numerals, and detailed description thereof and description of the operations and effects are omitted.

Embodiment 7
FIG. 17 is a longitudinal front view showing another configuration of the shock absorber A. FIG. The shock absorber A includes a shock absorber 3a fitted in a square cylindrical holding portion 26, a fitting shaft portion 32 fitted in the holding portion 26, and a holding portion 26 from one end of the fitting shaft portion 32. This is a substantially L-shape having a flexible portion 33 extending outward from the outer side surface of the lens, and a convex retaining portion 34 is provided at the other end of the fitting shaft portion 32. The holding body 2 is formed in the same manner as in the fifth embodiment.

The retaining portion 34 is formed outward from a part in the circumferential direction of the fitting shaft portion 32, engages with one side of the movable portion 26 f in the holding portion 26, and is displaced in the withdrawal direction of the fitting shaft portion 32. Is prevented, and the fitting state of the buffer 3a is maintained.
Since other configurations and operations are the same as those of the first and fifth embodiments, the same components are denoted by the same reference numerals, and detailed description thereof and description of the operations and effects are omitted.

  In the embodiment described above, the shock absorber A is attached to the circuit board 1 mounted on the support 7 of the light source device, and the shock absorber 3 or the shock absorber 3a of the shock absorber A contacts the inner surface of the cover 8. However, the buffer A may be attached to the cover 8 so that the buffer 3 or the buffer 3a of the buffer A contacts one surface on which the components of the circuit board 1 are mounted. In this case, a plurality of holes are formed in a part of the cover 8, and the attachment portion 21 or the attachment portion 27 of the shock absorber A is fitted and held in the holes.

  Further, the hole 11 into which the mounting portion 21 or the mounting portion 27 of the shock absorber A is inserted is formed in a round shape or a square shape, and is configured so that the mounting portion 21 or the mounting portion 27 is not displaced in the direction intersecting the insertion direction. However, the hole 11 has a substantially dharma shape, a substantially L shape, or the like in which a part of the circumferential direction of the large-diameter hole and the small-diameter hole is continuous, and the inserted mounting portions 21 and 27 intersect the insertion direction. The mounting portions 21 and 27 may be locked at the hole edge portion at the sliding position, and the shape of the hole 11 is not particularly limited.

  In the embodiment described above, the mode in which the shock absorber A is applied to the light source device included in the display device has been described. However, the shock absorber A may be applied to other than the light source device. Any configuration may be used as long as it is attached to one of the two opposing members and the buffer body 3 contacts the other to suppress vibration.

  Further, the shock absorber A according to the present invention may be used for a device other than the display device in addition to being used for a display device including a light source device.

  The display device according to the present invention may be a liquid crystal display device such as a liquid crystal television, or a display device such as a plasma display device or an EL display.

A Buffer B Light source device 1 Power circuit board (circuit board)
11 hole 2 holding body 21 mounting part 22, 24, 25 holding part 22a insertion hole
23 Restriction piece 26 Holding part 26e Hinge 26f Movable part 26g Locking claw (swing stop part)
26h engagement hole (rocking stop)
26k retaining portion 27 mounting portion 27a base portion 27b claw portion 28 gripped portion 3, 3a shock absorber 32 fitting shaft portion 33 flexible portion 34 retaining portion 4 display panel (display portion)
6 Light emitting element (light source)
7 Support 8 Cover

Claims (14)

  A shock absorber attached by fitting into a hole, comprising: a holding body having a mounting portion to be inserted into the hole and a holding portion connected to the mounting portion; and a shock absorber held by fitting in the holding portion. A shock absorber characterized by comprising.   The shock absorber according to claim 1, wherein the holding portion has a cylindrical shape.   The shock absorber according to claim 1, wherein the holding portion has a column shape, and the shock absorber has a fitting hole into which the holding portion is fitted.   The said holding | maintenance part has a connection part which connects two holding pieces and each holding piece which are spaced apart and opposed to the direction which cross | intersects the direction in which the said attachment part is inserted in the said hole, and the said attachment part. Shock absorber.   The holding portion has a cylindrical shape having a central axis in a direction intersecting with an insertion direction in which the attachment portion is inserted, and the buffer body is fitted in the holding portion and the fitting shaft. The shock absorber according to claim 1, further comprising a flexible portion that extends outwardly from an outer surface of the holding portion from at least one end of the portion.   The holding part has a thinner hinge at one place in the circumferential direction and is divided at a place spaced apart from the hinge in the circumferential direction to form a movable part that can swing around the hinge as a fulcrum. The shock absorber according to claim 5, further comprising a rocking stop portion that prevents the movable portion from rocking.   The shock absorber according to any one of claims 1 to 6, wherein at least one of the holding portion and the shock absorber has a retaining portion that prevents the shock absorber from being displaced in the removal direction.   The holding portion is partially removed in the circumferential direction, and is engaged with the fitting shaft portion at the edge of the removed portion, and the fitting shaft portion is positioned in a direction opposite to the fitting direction. The shock absorber according to claim 5, further comprising a retaining portion that prevents the displacement.   The holding body includes a restricting piece that extends between the attachment portion and the holding portion in a direction intersecting with an insertion direction in which the attachment portion is inserted, and restricts an insertion position of the attachment portion. The shock absorber according to any one of 8.   The shock absorber according to claim 9, wherein the restriction piece has flexibility, and a tip end portion is biased toward the attachment portion.   The mounting portion includes a base portion where the holding portion continues and a claw portion that extends from the tip of the base portion to the holding portion side and is to be locked to an edge portion of the hole, from the claw portion to the holding portion. The shock absorber according to any one of claims 1 to 8, further comprising a to-be-picked portion that is extended to a position facing the outer surface of the claw and biases the claw portion by a pinching operation.   The shock absorber according to claim 3, wherein an edge of the insertion hole is biased toward the mounting portion.   A plate-shaped support that supports the light source on one side, a cover that conceals the other side of the support, and the cover and the support are arranged between the cover and the support. The circuit board that is mounted and supplies power to the light source, and the attachment portion is inserted into the hole provided in the other of the cover and the support body or the circuit board. A light source device comprising the shock absorber described above.   A display device comprising: a display unit having a display surface on one side; and the light source device according to claim 13 disposed on the other side of the display unit.

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