JP2011033086A - Joining structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joining structure capable of fitting one object to the other object in a short time. <P>SOLUTION: In this structure, a projecting part 34 is engaged with a recessed part 54 prior to other projecting parts 31-33, and thereby, the projecting parts 31-33 other than the engaged projecting part 34 and recessed parts 51-53 corresponding to the projecting parts 31-33 are aligned, and the one object can be fitted to the other object in a short time without simultaneously aligning the plurality of projecting parts 31-34 and the plurality of recessed parts 51-54 corresponding to the projecting parts 31-34. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a connection structure that connects two opposing objects, and more particularly to a connection structure that connects a fixed object such as a wall and a display device.

  Liquid crystal display devices that occupy a small indoor area compared to the size of the display screen are generally widely used because they can effectively use a limited indoor space. The liquid crystal display device is often installed on the floor, but it is installed on the wall in order to make more effective use of the indoor space.

  In Patent Document 1, a plurality of protrusions projecting from the rear part of the display device and an inclined surface inclined laterally with respect to the vertical direction are provided, and a plurality of notches extending downward are provided on the inclined surface. A wall hanging device comprising a tool is disclosed. The jig is attached to the wall, and when the display device is installed on the wall, the protrusion is slid on the inclined surface and engaged with the notch.

  Even when the protrusion is engaged with the notch, when a force is applied to the display device from below due to an earthquake or the like, the protrusion may come out of the notch and the display device may come off the jig. Patent Document 2 discloses a fixing device in which a plurality of protrusions are engaged with a jig formed with a plurality of crank-shaped notches. In the fixing device described in Patent Document 2, even if a force is applied from the lower side and the protrusion engaged with the notch moves upward, the display device is in contact with the corner of the crank. There will be no departure.

JP 2008-69937 A JP-A-11-2013386

  However, since the wall-hanging device and the fixing device described in Patent Documents 1 and 2 need to align the positions of the plurality of notches and the plurality of protrusions at the same time, the work burden on the operator is large, and it is difficult to attach the display device. There is a problem that it takes time.

  The present invention has been made in view of such circumstances, and one object can be locked to another object in a short time without simultaneously aligning the positions of the plurality of notches and the plurality of protrusions. The object is to provide a bonded structure.

  The coupling structure according to the present invention has a plurality of protrusions disposed on a side surface extending up and down of one object, and an inclined portion provided on a side surface extending up and down of another object and inclined with respect to the vertical direction. And a locking structure for locking the plurality of protrusions, wherein the one object and the other object are coupled by locking the protrusions to the locking part. The locking portion is located at the inclined portion, and the first recess that engages one of the protrusions and the remaining protrusion engages and is positioned above the first recess. And a distance between the openings of the first recess and the second recess is shorter than a distance between the protrusions engaging with the first recess and the second recess.

  In the present invention, for example, by engaging one projection located on the lower side with the first recess before the other projection, the other projection and the other recess (for example, the second recess) The position is aligned.

  In the coupling structure according to the present invention, the first recess and the second recess have a first groove extending downward, and a second groove that intersects the first groove with one end connected to a lower end of the first groove. And a third groove portion that is continuous with the other end portion of the second groove portion and extends downward.

  In the present invention, the protrusion engaged with the third groove via the first groove and the second groove is an angle at which the second groove and the third groove are joined even if a force is applied from below. The protrusion is in contact with the portion, and the protrusion does not come off from the first recess and the second recess.

  The coupling structure according to the present invention is characterized in that the other end portion of the second groove portion protrudes upward and has a latching portion for latching the projecting portion.

  In the present invention, when the protrusion engaged with the third groove is in contact with the corner where the second groove and the third groove are joined, the protrusion protrudes above the other end of the second groove. Since it is hooked to the portion, even if a force in a direction parallel to the second groove portion is applied, it does not move toward the first groove portion.

  The coupling structure according to the present invention is characterized in that an attachment portion is provided on a side surface extending vertically of one object, and the projection is attached to the one object via the attachment portion.

  In this invention, the connection part of a projection part and one object is reinforced by attaching a projection part to one object via an attachment part.

  In the coupling structure according to the present invention, the one object is a display device.

  In the present invention, the display device is attached to another object, for example, a wall, and the limited indoor space is effectively used.

  In the coupling structure according to the present invention, for example, a plurality of other protrusions and a second recess corresponding to the other protrusions by engaging one protrusion located on the lower side with the first recess. It is possible to lock one object to another object in a short time without matching the positions of the other recesses and the like, and simultaneously aligning the plurality of protrusions and the plurality of recesses corresponding to the protrusions. .

It is a longitudinal cross-sectional view which shows schematically the projection part provided in the display apparatus and the display apparatus. It is a perspective view which shows schematically the projection part fixed to the rear cabinet. FIG. 5 is a perspective view schematically showing a locking plate fixed to a wall. FIG. 4 is a schematic enlarged vertical sectional view taken along line IV-IV in FIG. 3. It is an enlarged front view which briefly shows a recessed part. It is explanatory drawing explaining the engagement to the recessed part of a projection part. FIG. 7 is a schematic vertical side sectional view taken along line VII-VII in FIG. It is explanatory drawing explaining the engagement to the recessed part of the projection part in a modification.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating a coupling structure according to an embodiment. FIG. 1 is a longitudinal sectional view schematically showing the display device 100 and a protrusion provided on the display device 100, and FIG. 2 is a perspective view schematically showing the protrusion fixed to the rear cabinet.

  In the figure, a display device 100 includes a rectangular display panel 1 having liquid crystal. The display panel 1 is configured to display an image by controlling the voltage applied to the liquid crystal to adjust the light transmittance. The display panel 1 is sandwiched between a front holding frame body 2 and a rear holding frame body 3, and is accommodated in a rectangular frame-shaped front cabinet 4. The front cabinet 4 is disposed around the front holding frame 2 and the rear holding frame 3. The front cabinet 4 has a rectangular opening, and the dimension of the opening corresponds to the display panel 1. On the rear side of the display panel 1, there are provided a plurality of optical sheets 5 that condense light of LEDs 9 (light emitting elements) described later toward the display panel 1.

  A diffusing plate 6 for uniformly diffusing the light of the LED 9 is provided on the rear side of the optical sheet 5. The diffusion plate 6 is supported by the edge portion of the deep dish-shaped support plate 7. A plurality of substrates 8 are arranged in parallel on the front surface of the support plate 7, and a film-like heat radiation pattern (not shown) made of a heat conductive material such as metal is formed on the rear surface of the substrate 8. .

  A plurality of LEDs 9, 9,... 9 are mounted on the front surface of the substrate 8, and lenses 10, 10,. 10 are arranged. Three projections 10 a, 10 a, 10 a projecting toward the substrate 8 side are juxtaposed in the circumferential direction on the periphery of the lens 10, and the tip of the projection 10 a is fixed to the front surface of the substrate 8 with an adhesive. .

  Support tables (not shown) are separately provided on the left and right sides of the front surface of the support plate 7, and the left and right edges of the deep dish type reflection sheet 11 are supported by the support table. On the bottom surface of the reflection sheet 11, a plurality of insertion holes 11a, 11a,..., 11a through which the lenses 10, 10,. Each lens 10 protrudes forward through the insertion hole 11a.

  A deep dish-shaped rear cabinet 12 is provided on the rear side of the support plate 7. The vertical and horizontal dimensions of the rear cabinet 12 and the vertical and horizontal dimensions of the front cabinet 4 are substantially the same, and the edge portion of the rear cabinet 12 and the edge portion of the front cabinet 4 face each other. Engagement convex portions and engagement concave portions (not shown) are provided at the edge portions of the front cabinet 4 and the rear cabinet 12, respectively, and the front cabinet 4 is connected to the rear cabinet by engaging the engagement convex portions and the engagement concave portions. 12 is fixed. The rear cabinet 12 accommodates a control board (not shown), and the LED 9 and the display panel 1 are driven based on an output signal from the control board.

  As shown in FIG. 2, two horizontally long mounting plates 20 and 21 (mounting portions) are arranged in parallel on the rear surface of the rear cabinet 12. Each mounting plate 20, 21 is fixed to the rear cabinet 12 with screws, and the lateral dimension of the upper mounting plate 20 is shorter than that of the lower mounting plate 21. The mounting plates 20 and 21 are arranged symmetrically with respect to a vertical line 60 passing through the center in the horizontal direction of the display device. At the center of the upper mounting plate 20, two projecting portions 31 and 32 are juxtaposed in a lateral direction at a substantially equal distance from the vertical line 60, while both ends of the lower mounting plate 21 are arranged. Two protrusions 33 and 34 are provided on the part. As shown in FIG. 2, the distance between the protrusions 31 and 32 and the protrusions 33 and 34 is d1.

  The protrusions 31 to 34 include a shaft portion extending in the front-rear direction and two disk portions that are provided at both ends of the shaft portion and face each other. One disk portion is thicker and smaller in diameter than the other disk portions, and is fixed to the mounting plates 20 and 21 (see FIG. 1).

  3 is a perspective view schematically showing a locking plate fixed to a wall, and FIG. 4 is a schematic enlarged vertical sectional view taken along line IV-IV in FIG.

  A trapezoidal locking plate 40 (locking portion) is screwed to the wall 70 so that the short side is located on the upper side. Of the edges of the locking plate 40, the short side portion 41 and the inclined portions 42, 43 are bent away from the wall 70, and an appropriate gap is provided between the walls 70. The short side portion 41 is formed with two crank-shaped recesses 51 and 52 (second recesses), and the recesses 51 and 52 are substantially even from the center line in the vertical direction of the trapezoidal locking plate 40. They are lined up at a distance. The corners of the openings of the recesses 51 and 52 are at substantially the same position in the vertical direction, and the inner portions of the recesses 51 and 52 are also at the same position in the vertical direction.

  A crank-shaped recess 53 is formed at the lower end of one of the inclined portions 42. A concave portion 54 (first concave portion) for positioning with respect to the protruding portion 34 is formed at the lower end portion of the other inclined portion 43. The recess 54 has a crank shape, and the position of the corner portion in the opening is located above the recess 53. The innermost surface of the innermost portion of the recess 53 and the innermost surface of the innermost portion of the recess 54 are substantially at the same position in the vertical direction. Therefore, as shown in FIG. 3, the distance d <b> 2 between the corner portion in the opening portion of the concave portion 51 of the short side portion 41 and the corner portion in the opening portion of the concave portion 54 of the other inclined portion 43 is Is shorter than the distance d3 between the innermost surface and the innermost surface of the recess 54. Note that the distance d1 between the protrusions 31 and 32 and the protrusions 33 and 34 described above is substantially the same as the distance d3 so that the relationship d1 = d3> d2 is established. Each of the crank-shaped recesses 51 to 54 is bent in the same direction.

FIG. 5 is an enlarged front view schematically showing the recess.
As shown in FIG. 5, the concave portions 51 to 54 are connected to the first groove portions 51 a to 54 a extending downward from the short side portion 41 and the inclined portions 42 and 43, and one end portion is connected to the lower ends of the first groove portions 51 a to 54 a. The second groove portions 51b to 54b are perpendicular to the first groove portions 51a to 54a, and the third groove portions 51c to 54c are connected to the other end portions of the second groove portions 51b to 54b and extend downward. The first groove portions 51a to 54a are reduced in width toward the lower side. On the upper side of the other end portions of the second groove portions 51b to 54b, hooking portions 51d to 54d protruding upward in an arc shape are formed.

  FIG. 6 is an explanatory view for explaining the engagement of the protruding portion with the concave portion, and FIG. 7 is a schematic vertical side sectional view taken along line VII-VII in FIG. In FIG. 6, the display device 100 is indicated by a two-dot chain line, and the mounting plates 20 and 21 and the protrusions 31 to 34 are indicated by a chain line.

  When the operator attaches the display device 100 to the wall 70, the protrusions 31 to 34 are positioned above the recesses 51 to 54, and the lower attachment plate described above is used as shown in FIG. 21 is brought into contact with the middle portion of the other inclined portion 43. Then, as indicated by the arrow in FIG. 6A, the projection 34 is slid downward to engage the first groove 54a. At this time, as shown in FIG. 6B, the positions of the other protrusions 31 to 33 and the corresponding recesses 51 to 53 are aligned, and the other protrusions 31 to 33 and the first groove portions 51a to 54a are aligned. Engage. Next, as shown by the arrow in FIG. 6B, the operator shifts the display device 100 to the side, and the protrusions 31 to 34 are moved to the upper ends of the third groove portions 51c to 54c by the second groove portions 51b to 54b. Slide. And as shown in FIG.6 (c), the projection parts 31-34 are made to slide below by the 3rd groove parts 51c-54c. Finally, as shown in FIG. 7, the display devices 100 are attached to the wall 70 by engaging the protrusions 31 to 34 with the lower ends of the third grooves 51 c to 54 c.

  In the coupling structure according to the embodiment, the protrusion 34 is engaged with the recess 54 (first recess) prior to the other protrusions 31 to 33, so that other than the engaged protrusion 34. The positions of the protrusions 31 to 33 and the recesses 51 to 53 are aligned, and the positions of the plurality of protrusions 31 to 34 and the plurality of recesses 51 to 54 corresponding to the protrusions 31 to 34 are simultaneously aligned. The display device 100 can be locked to the wall 70 in a short time.

  Further, the protrusions 31 to 34 engaged with the third groove portions 51c to 54c via the first groove portions 51a to 54a and the second groove portions 51b to 54b are not affected by the second groove portion 51b even if a force acts from below. To 54b and the third groove portions 51c to 54c are in contact with the corners where the projections 31 to 34 are not detached from the recesses 51 to 54, and the display device 100 provided with the projections 31 to 34 is subjected to the wall 70 by an earthquake or the like. There will be no departure.

  Further, the protrusions 31 to 34 engaged with the third groove portions 51c to 54c are latched upward when the second groove portions 51b to 54b and the third groove portions 51c to 54c come into contact with the corner portions. Since it is hooked on the portions 51d to 54d, even if a force in a direction parallel to the second groove portions 51b to 54b is applied, the object does not move toward the first groove portions 51a to 54a, and the protrusions 31 to 34 are provided. For example, even if the display device 100 swings up and down and left and right, it does not come off the wall 70.

  Moreover, since the connection part of the projection parts 31-34 and the display apparatus 100 is reinforced by attaching the projection parts 31-34 to the rear cabinet 12 via the attachment plates 20 and 21, even if the display apparatus 100 shakes, it is protrusion. The parts 31 to 34 are not detached from the rear cabinet 12.

  Further, by attaching the display device 100 to the wall 70, a limited indoor space can be used effectively.

  In the coupling structure according to the embodiment, the second groove portions 51b to 54b are perpendicular to the first groove portions 51a to 54a, but may be inclined with respect to the first groove portions 51a to 54a. In the coupling structure according to the embodiment, the recesses 51 to 54 are crank-shaped, but the second grooves 51b to 54b only need to intersect the first grooves 51a to 54a. It is not limited to the crank shape. Further, in the coupling structure according to the embodiment, the two concave portions 51 and 52 (second concave portions) are formed in the short side portion 41, but only one of the concave portion 51 or the concave portion 52 is the short side portion. 41 may be formed. Further, the concave portions 51 and 52 may be formed in the inclined portions 42 and 43. Further, in the coupling structure according to the embodiment, the recessed portions 53 and 54 are formed in the inclined portions 42 and 43, respectively, but the recessed portion 54 is not formed in the inclined portion 42 and the recessed portion 54 is formed in the inclined portion 43. Only the (first recess) may be formed.

  Next, a modified example of the coupling structure according to the embodiment will be described. FIG. 8 is an explanatory diagram for explaining the engagement of the protrusions with the recesses in the modified example.

  As shown in FIG. 8, the short side portion 41 is formed with two crank-shaped recesses 51 'and 52' (second recesses), and the recesses 51 'and 52' are trapezoidal locking plates. 40 are arranged at a substantially equal distance from the center line in the vertical direction. The corners of the openings of the recesses 51 ′ and 52 ′ are at substantially the same position in the vertical direction, and the inner portions of the recesses 51 ′ and 52 ′ are also at the same position in the vertical direction.

  Crank-shaped recesses 53 'and 54' (first recesses) are formed at the lower ends of the inclined portions 42 and 43, respectively. The position of the corner portion in the opening of the recess 54 'is located above the corner portion in the opening of the recess 53' in the vertical direction. Further, the innermost surface of the innermost portion of the concave portion 53 'and the innermost surface of the innermost portion of the concave portion 54' are substantially at the same position in the vertical direction.

  The recesses 51 'to 54' are provided with the first to third groove portions and the latching portions described above, and in FIG. 5, the portions 51 to 54 are replaced with 51 'to 54' and applied accordingly.

  The first groove portions 51'a and 52'a of the concave portions 51 'and 52' are shorter than the first groove portions 53'a and 54'a of the concave portions 53 'and 54'. Further, the third groove portions 51'c and 52'c of the concave portions 51 'and 52' are substantially the same as the third groove portions 53'c and 54'c of the concave portions 53 'and 54', or the third groove portions 53'c and 54 '. It is longer than 'c. Further, the second groove portions 51'b and 52'b of the concave portions 51 'and 52' are substantially the same as the second groove portions 53'b and 54'b of the concave portions 53 'and 54'.

  Therefore, the distance d2 between the corner portion in the opening of the recesses 51 'and 52' of the short side portion 41 and the corner portion in the opening of the recesses 53 'and 54' is the maximum distance in the back of the recesses 51 'and 52'. The distance d3 ′ between the inner surface and the innermost surface of the recesses 53 ′ and 54 ′ is substantially equal to or longer than the distance d3 ′. The distance d1 between the protrusions 31 and 32 and the protrusions 33 and 34 is longer than the distance d2, and the relationship d1> d2 = d3 ′ or d1> d2> d3 ′ is established. Each of the crank-shaped recesses is bent in the same direction.

  When the operator attaches the display device 100 to the wall 70, the protrusions 31 to 34 are positioned above the recesses 51 'to 54', and the lower attachment plate is placed as shown in FIG. 21 is brought into contact with the middle portion of the inclined portion 43. And as shown by the arrow of Fig.8 (a), it slides below and the projection part 34 is engaged with 1st groove part 54'a. At this time, when the protrusion 33 is engaged with the first groove 53'a and the display device 100 is further moved downward, the other protrusions 31-33 and the corresponding recesses 51'-53 ' As shown in FIG. 8B, the protrusions 31 to 34 and the first groove portions 51 'to 54'a are engaged with each other.

  Next, as shown by the arrow in FIG. 8B, the operator shifts the display device 100 to the side, and the protrusions 31 to 34 are moved to the third groove 51'c by the second grooves 51'b to 54'b. Slide to the upper end of ~ 54'c. And as shown in FIG.8 (c), the projection parts 31-34 are slid below by 3rd groove part 51'c, 52'c, 53'c, 54'c. Finally, the protrusions 33 and 34 are engaged with the lower ends of the third grooves 53 ′ c and 54 ′ c to attach the display device 100 to the wall 70. At this time, when the relationship of d1> d2> d3 ′ is established, the protrusions 31 and 32 are positioned in the middle of the third groove portions 51′c and 52′c, and the relationship of d1> d2 = d3 ′ is established. In this case, it is located at the lower end of the third groove portions 51'c and 52'c.

  In the modification of the coupling structure according to the embodiment, the protrusion 34 is engaged with the recess 54 'before the other protrusions, so that the protrusions and the recesses other than the engaged protrusions are engaged. The positions of the plurality of protrusions 31 to 34 and the positions of the plurality of recesses 51 ′ to 54 ′ corresponding to the protrusions 31 to 34 can be aligned in a short time without causing the display device 100 to be 70 can be locked.

  Note that the relationship between the distances d1 to d3 (including d3 ′) in the coupling structure according to the embodiment and the modification thereof only needs to satisfy the relationship of d1> d2, and the distance d1 and the distance d2 and the distance d3 (d3 ′). ) Can be selected as appropriate, and is not limited to the aforementioned relationship (d1 = d3> d2, d1> d2 = d3 ′ or d1> d2> d3 ′). Further, in the coupling structure according to the embodiment and the modified example thereof, the first groove portion to the third groove portion are arranged so that each protrusion portion engages with each recess according to the relationship between the distances d1 to d3 (including d3 ′). Needless to say, it is designed. For example, in the modification of the coupling structure according to the embodiment, the corner portion in the opening of the recess 54 ′ and the corner portion in the opening of the recess 53 ′ may be designed to be substantially the same in the vertical direction. .

  The above embodiment and its modifications are examples of the present invention, and it goes without saying that the present invention can be implemented in variously modified forms within the scope of the matters described in the claims.

20, 21 Mounting plate (mounting part)
31-34 Protrusion 40 Locking plate (locking portion)
41 Short side portion 42, 43 Inclined portion 51-54 Recessed portion 51a-54a, 51'a-54'a First groove 51b-54b, 51'b-54'b Second groove 51c-54c, 51'c-54 'C 3rd groove part 51d-54d, 51'd-54'd latching | locking part 100 Display apparatus

Claims (5)

A plurality of protrusions disposed on a side surface extending vertically of one object and a side surface extending vertically of another object and having an inclined portion inclined with respect to the vertical direction, the plurality of protrusions being A coupling structure for coupling the one object and the other object by latching the protrusion to the latching part,
The locking portion is
A first recess located in the inclined portion and engaged with one of the protrusions;
The remaining protrusions engage, and a second recess located above the first recess,
The coupling structure, wherein a distance between the opening portions of the first recess and the second recess is shorter than a distance between the protrusions engaged with the first recess and the second recess. The first recess and the second recess are
A first groove extending downward,
A second groove part that is connected to a lower end part of the first groove part and intersects the first groove part;
The coupling structure according to claim 1, further comprising: a third groove portion that is continuous with the other end portion of the second groove portion and extends downward.   3. The coupling structure according to claim 2, wherein the other end portion of the second groove portion protrudes upward, and has a latching portion that latches the projection. There is a mounting part on the side of the object that extends up and down,
The coupling structure according to any one of claims 1 to 3, wherein the protrusion is attached to one object via the attachment portion.   The coupling structure according to claim 1, wherein the one object is a display device.

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