JP5881563B2 - Bracket assembly structure - Google Patents

Description

  The present invention relates to an electronic device in which a device unit is assembled through a bracket, and more particularly to an improvement in a bracket assembly structure.

  Many in-vehicle electronic devices are configured to include a device main body and a device unit that operates by being connected to the device main body. For example, the mechanical bracket described in Patent Document 1 is a bracket that is attached to a device unit such as a DVD drive. This bracket has a double structure constituted by assembling two bracket members.

JP 2007-308006 A

The bracket described in Patent Document 1 includes a plurality of lower end surfaces that are lower than the bottom surface formed by cutting and bending a plurality of portions at an end portion serving as a connection portion of one bracket member (referred to as a first bracket). A tongue-like claw portion is provided, and a hole is formed in the surface of each claw portion.
In addition, dowels are formed at locations facing the hole portion of the claw portion in the state where the two bracket members are assembled in the end side portion which becomes the connecting portion of the other bracket member (referred to as the second bracket). .
The dowel is inserted into the hole by inserting the end side of the second bracket between the upper surface of the claw of the first bracket and the lower surface of the end that is flush with the bottom surface adjacent to the claw. Then, the second bracket is assembled to the first bracket.

However, the conventional technique represented by Patent Document 1 can insert only the length of the claw portion of the first bracket into the end side portion serving as the connection portion of the second bracket.
For this reason, in the assembled state, an area where the first bracket and the second bracket are in contact with each other cannot be sufficiently obtained, and an external force is not generated until the first bracket and the second bracket are screwed to the device unit. When applied, there was a problem that the assembly could be easily removed.

  Moreover, in patent document 1, in order to eliminate the backlash of the assembly | attachment of a 1st bracket and a 2nd bracket, the lower surface of the edge part which exists in the same plane as the upper surface part of the nail | claw part of a 1st bracket, and the bottom face adjacent to a nail | claw part. However, in this case, it is difficult to insert the end side portion of the second bracket, and the assembling property may be deteriorated.

  When the two bracket members are assembled, a bottom surface portion located on the bottom surface of the device unit is integrally provided on one of the two bracket members, or a portion obtained by dividing the bottom surface portion is integrally provided on the bracket member. Thus, the number of parts can be reduced as compared with the case where the bottom surface portion is a separate member. This configuration is effective, for example, in a case where the bracket is also used as a shield function in an equipment unit that requires electromagnetic shielding around the periphery.

  The present invention has been made to solve the above-described problems, and in a bracket constructed by assembling two bracket members, the assembly of the bracket that can be easily assembled and can be accurately assembled. The purpose is to obtain a structure.

In the bracket assembly structure according to the present invention, in the bracket formed by assembling the first bracket member and the second bracket member, the first bracket member has a box shape in which one of the top surface and the side surface is opened, A band-shaped member extends from the edge of the bottom surface on the opened side surface, and the second bracket member has a box shape in which one of the top surface and the side surface is opened, and is formed on the edge of the bottom surface on the opened side surface. An insertion hole for horizontally inserting the belt-shaped member is formed, a hole is formed in one of the edge of the belt-shaped member and the bottom surface, a protrusion is formed in the other, and the first bracket member and The second bracket member inserts the band-shaped member into the insertion hole, and the protrusion fits into the hole and presses one opening of the hole so that the band-shaped member is inserted into the second bracket in the insertion hole. Pressed member Characterized in that it is assembled.

  According to this invention, in the bracket constituted by assembling two bracket members, there is an effect that the assemblability is good and the bracket member can be assembled accurately.

It is a figure which shows the electronic device to which the assembly | attachment structure of the bracket which concerns on Embodiment 1 of this invention is applied. It is a figure which shows the problem in an integrated bracket. It is a figure which shows the structure of the conventional bracket. It is a figure which shows the assembly | attachment structure of the bracket which concerns on Embodiment 1. FIG. It is a figure which shows the bracket member which concerns on Embodiment 1. FIG. It is a figure which shows the assembly location between bracket members. It is a figure which shows schematically the cross section cut by CC line of FIG. It is a figure which shows another aspect of the assembly | attachment structure of the bracket which concerns on Embodiment 1. FIG. It is a figure which shows another aspect of the assembly | attachment structure of the bracket which concerns on Embodiment 1. FIG.

Embodiment 1 FIG.
FIG. 1 is a diagram showing an electronic device to which a bracket assembly structure according to Embodiment 1 of the present invention is applied, and a media playback device such as a car audio device is taken as an example of the electronic device. As shown in FIG. 1A, the device unit of the electronic device 1 is housed in a structure composed of bracket members 2 and 3 and a top plate member 4. By combining the metal bracket members 2 and 3 and attaching the metal top plate member 4, the front, side, rear, bottom and top surfaces of the equipment unit are shielded from the outside by the metal plate material. An electromagnetic shield is formed by electrically connecting the bracket members 2 and 3 and the top plate member 4 to the casing body of the device unit by screwing or the like.

As shown in FIG. 1B, the device unit is attached to a chassis 6 attached to the device body 5 of the electronic device 1 via a bracket made up of bracket members 2 and 3.
Furthermore, the electromagnetic shielding effect can be improved by electrically connecting the bracket members 2 and 3 to the chassis 6 by screwing or the like.
Although the configuration using the top plate member 4 is shown in the example of FIG. 1, a top plate member attached to the chassis 6 may be used instead of the top plate member 4.

FIG. 2 is a diagram showing a problem in the integrated bracket, and shows a cross section cut by a line drawn from the front surface to the rear surface. When the bracket 100 is attached to the device unit 7, the bracket 100 is temporarily fixed to the device unit 7 and then fixed by screwing or the like.
Therefore, it is necessary to accurately position the screwing portion of the device unit 7 and the bracket 100 during temporary fixing. For example, when screwing the front and rear surfaces of the device unit 7, positioning portions are provided on the front and rear surfaces. As a positioning part of metal members, the structure which fits the dowel provided in one member in the hole provided in the other member is common.

  However, as shown in FIG. 2, when the bracket 100 attached to the device unit 7 is integrally formed without being divided into a plurality of members, there is a problem that it is difficult to assemble the device unit 7 to the bracket 100. That is, since the dowel is formed so as to fit into the hole, when the device unit 7 is assembled to the bracket 100, the dowel 101a formed on the front surface 100a of the bracket 100 and the dowel 101b formed on the rear surface 100b are used as the device unit. 7 interferes (collides) with the outer shape. In this case, if the front surface 100a and the rear surface 100b of the bracket 100 can be bent outward, the dowels 101a and 101b can be fitted into the holes 102a and 102b provided in the device unit 7, but the bracket 100 is rigid. If it is made of a high material, it cannot be assembled.

On the other hand, if the bracket is divided into a plurality of members and the individual members are combined while being positioned, the above problem can be avoided.
FIG. 3 is a diagram illustrating a configuration of a conventional bracket, and the bracket is divided into front, rear, top, and bottom members. In the example shown in FIG. 3, the front member 200 and the rear member 201 of the bracket are assembled to the equipment unit 7, and then the top member 202 and the bottom member 203 are assembled.

  Further, as shown in FIG. 3, screw holes 7 a are respectively formed on the front surface and the rear surface of the device unit 7, the front member 200 is positioned with respect to the front surface of the device unit 7, and the rear member 201 is Positioned relative to the rear surface. For example, positioning is performed by fitting dowels respectively formed on the front member 200 and the rear member 201 into holes provided on the front and rear surfaces of the device unit 7. When the front member 200 and the rear member 201 are screwed to the device unit 7 with the screws 8, the top member 202 and the bottom member 203 are attached from above and below. In this way, the front, side, rear, bottom, and top surfaces of the device unit 7 are shielded from the outside by the metal plate material to form an electromagnetic shield.

Thus, if the bracket is divided into front, rear, top and bottom members, the problem of assembly as shown in FIG. 2 does not occur, but the number of parts that need to be handled individually increases. For this reason, the operation | work which assembles the member which comprises a bracket increases, and an operation | work becomes complicated.
Therefore, in the present invention, the bracket is divided into the front and rear (or left and right) together with the bottom surface, and the bottom surface is formed by combining the divided members.
By comprising in this way, positioning at the time of attaching to the apparatus unit 7 can be performed exactly, and a number of parts can be reduced.

  FIG. 4 is a diagram showing a bracket assembly structure according to Embodiment 1, and shows a structure in which the bracket is divided into two front and rear members. FIG. 5 is a diagram showing a bracket member according to the first embodiment. Fig.5 (a) is a top view of the bracket members 2 and 3 before an assembly | attachment, FIG.5 (b) is a top view of the bracket members 2 and 3 after an assembly | attachment.

  As shown in FIGS. 4 (a) and 5 (a), the bracket member 2 is a member on the front surface side and has a box shape with one of the top surface and the side surface (rear surface) opened. The strip-shaped member 9 is extended from the edge of the bottom surface 2c on the side surface. The band-shaped member 9 is formed wider than the portion where the base 9 a connected to the end of the bottom surface 2 c of the bracket member 2 is inserted into the insertion hole 11.

  On the other hand, the bracket member 3 is a member on the rear surface side and has a box shape in which one of the top surface and the side surface (front surface) is opened, and the band-shaped member 9 is formed on the end side portion 3d of the bottom surface 3c on the opened side surface. Is inserted horizontally. In addition, positioning protrusions 13 are formed at intervals corresponding to the width of the belt-like member 9 at the end side 3 d of the bottom surface 3 c of the bracket member 3. In addition, the positioning protrusion 13 may be a dowel formed by punching out the back surface side of the end side 3d.

  4 and 5, the hole 10 is formed in the belt-like member 9, and the dowel 12 is formed in the end 3d of the bottom surface 3c. When the belt-like member 9 is inserted into the insertion hole 11, the dowel 12 fits into the hole 10 and presses the opening. As will be described later with reference to FIG. 7, the bracket members 2 and 3 are assembled by the pressure contact force in a state where the belt-like member 9 inserted into the insertion hole 11 presses the bottom surface 3 c of the bracket member 3.

As shown in FIG. 4A, screw holes 7a are formed in the front and rear surfaces of the device unit 7, respectively, the bracket member 2 is positioned with respect to the front surface of the device unit 7, and the bracket member 3 is the device unit. 7 is positioned relative to the rear surface. This positioning is performed, for example, by fitting dowels (or holes) formed in the bracket members 2 and 3 to holes (or dowels) provided on the front and rear surfaces of the device unit 7, respectively.
As described above, after the bracket members 2 and 3 are assembled via the device unit 7, the bracket members 2 and 3 are screwed (fixed) to the device unit 7 with the screws 8.

  The bottom surface of the bracket is formed by a combination of the bottom surface 2c of the bracket member 2 and the bottom surface 3c of the bracket member 3 as shown in FIGS. 4 (b) and 5 (b). Therefore, it is possible to reduce the bottom surface member 203 in the conventional configuration shown in FIG.

Since the band-like member 9 of the bracket member 2 and the corresponding insertion hole 11 of the bracket member 3 are portions that electrically connect the two members, the high frequency circuit characteristics of the device unit 7 are taken into consideration. In such a number, an appropriate electromagnetic shielding effect can be obtained.
4 and 5 show a case where there are three sets of the band-like member 9 and the insertion hole 11, but for example, when the frequency of the signal handled by the device unit 7 is high, the leakage of radio waves even in a slight gap Therefore, it is conceivable to increase the number of sets of the band-shaped member 9 and the corresponding insertion hole 11.

6A and 6B are diagrams showing an assembly location between bracket members, FIG. 6A is an enlarged view of a portion A in FIG. 5B, and FIG. 6B is an arrow B in FIG. 6A. FIG. Moreover, FIG. 7 is a figure which shows roughly the cross section cut by CC line of FIG.
As shown in FIG. 6A, two positioning protrusions 13 are formed for one insertion hole 11, and they are arranged in the vicinity of the insertion hole 11 at an interval corresponding to the width of the belt-like member 9. Is done. Thereby, the strip | belt-shaped member 9 is guided by the insertion hole 11 by passing between the protrusions 13 for positioning, and can be inserted easily.

  Further, the base 9a of the belt-like member 9 connected to the end of the bottom surface 2c is formed wider than the portion inserted into the insertion hole 11, and the dowel 12 is fitted into the hole 10 in the positioning projection 13. It arrange | positions so that it may contact | abut to the base 9a of the strip | belt-shaped member 9 in the position to do. By comprising in this way, it can prevent that the strip | belt-shaped member 9 is inserted in the insertion hole 11, so that the dowel 12 remove | deviates from the hole part 10. FIG.

  As shown in FIG. 6B, the belt-like member 9 is bent from the end of the bottom surface 2c so as to be lower than the bottom surface 2c by the thickness d. Further, the end side 3d of the bracket member 3 is also bent at the boundary with the bottom surface 3c so as to be lower than the bottom surface 3c, and the insertion hole 11 is formed in the step surface facing the end surface of the belt-like member 9. ing. With this configuration, the belt-like member 9 faces the back surface of the bottom surface 3 c in the insertion hole 11.

  When the dowel 12 is fitted into the hole 10 with the band-like member 9 facing the back surface of the bottom surface 3c in the insertion hole 11, the dowel 12 presses the opening of the hole 10 as shown in FIG. The belt-like member 9 is urged upward by the pressing force. Thereby, the front-end | tip part D of the strip | belt-shaped member 9 will be in the state which pressed the bottom face 3c from the back surface side. As described above, since the belt-like member 9 inserted into the insertion hole 11 presses the bottom surface 3c of the bracket member 3 and is prevented from coming off, the present invention is remarkably compared with the configuration described in Patent Document 1. Stable assembly is possible.

  Further, a chamfered portion 9b in which the lower corner of the front end portion of the belt-like member 9 is dropped is provided, and a chamfered portion 3e in which the upper corner of the front end portion of the end side portion 3d is dropped and the upper corner of the opening edge portion of the insertion hole 11 are provided. The dropped beveled portion 11a may be provided. By comprising in this way, the strip | belt-shaped member 9 can be easily inserted in the insertion hole 11, and it is possible to improve the workability | operativity of an assembly | attachment.

In addition, as shown in FIG. 8, the same effect can be acquired even if it forms the dowel 12A in the strip | belt-shaped member 9, and provided the hole 10A in the edge part 3d. That is, when the dowel 12A is fitted into the hole 10A with the band-shaped member 9 facing the back surface of the bottom surface 3c in the insertion hole 11, the dowel 12A presses the opening of the hole 10A as shown in FIG. The belt-like member 9 is biased upward by this pressure contact force. Thereby, the front-end | tip part E of the strip | belt-shaped member 9 will be in the state which pressed the bottom face 3c from the back surface side.
Also in the configuration of FIG. 8, the chamfered portion 9 c is formed by dropping the upper corner of the front end portion of the band-shaped member 9, and the chamfered portion 3 e and the insertion hole 11 of the upper end corner of the end side portion 3 d are dropped. By providing the chamfered portion 11a in which the upper corner of the opening edge is dropped, the assembling workability can be improved.

In the above description, the configuration in which the positioning projection 13 is provided on the end side 3d of the bracket member 3 is shown, but the present invention is not limited to this configuration.
For example, as shown in FIG. 9, the base portion 9 a ′ is formed in a vertically long shape so as to abut the opening edge portion of the insertion hole 11 at a position where the dowel 12 is fitted into the hole portion 10. By comprising in this way, an insertion direction can be positioned, without providing the positioning protrusion 13. FIG.

As described above, according to the first embodiment, the bracket member 2 has a box shape in which one of the top surface and the side surface is opened, and the belt-like member 9 extends from the edge of the bottom surface 2c on the opened side surface. The bracket member 3 has a box shape in which one of the top surface and the side surface is opened, and an insertion hole 11 for horizontally inserting the belt-like member 9 is formed in the end side portion 3d of the bottom surface 3c on the opened side surface. A hole 10 is formed in the band-shaped member 9, and a dowel 12 is formed in an end 3 d of the bottom surface 3 c, and the bracket member 2 and the bracket member 3 insert the band-shaped member 9 into the insertion hole 11. Then, when the dowel 12 is fitted into the hole 10 and the opening is pressed, the band-like member 9 is assembled in a state where the bracket member 3 is pressed in the insertion hole 11.
With this configuration, the two bracket members 2 and 3 can be assembled while being positioned with respect to the device unit 7 respectively, so that the assembling property can be improved. Furthermore, since the belt-shaped member 9 is assembled in a state where the bracket member 3 is pressed in the insertion hole 11, the bracket members 2 and 3 can be assembled with sufficient strength.

  Further, according to the first embodiment, since the positioning projections 13 formed at intervals corresponding to the width of the band-shaped member 9 are provided on the end side part 3d of the bottom surface 3c of the bracket member 3, the band-shaped member 9 is provided. Can be easily inserted into the insertion hole 11, and the assemblability of the bracket members 2 and 3 can be improved.

  Furthermore, according to the first embodiment, the belt-like member 9 is formed so that the base portion 9a connected to the end side of the bottom surface 2c of the bracket member 2 is wider than the portion inserted into the insertion hole 11, and the positioning protrusion 9 The portion 13 abuts against the base portion 9 a of the belt-like member 9 at a position where the dowel 12 is fitted into the hole portion 10. By comprising in this way, it can prevent that the strip | belt-shaped member 9 is inserted in the insertion hole 11, so that the dowel 12 remove | deviates from the hole part 10. FIG.

  In the first embodiment, the members to be assembled from the front and rear of the device unit 7 are shown as the bracket members 2 and 3, but the bracket members 2 and 3 may be configured as members to be assembled from the left and right of the device unit 7. Even if comprised in this way, the effect similar to the above can be acquired.

  In the present invention, any component of the embodiment can be modified or any component of the embodiment can be omitted within the scope of the invention.

  DESCRIPTION OF SYMBOLS 1 Electronic device, 2, 3 Bracket member, 2a Front surface, 2b, 3b Side surface, 2c, 3c Bottom surface, 3a Rear surface, 3d End side part, 3e, 9b, 11a Chamfered part, 4 Top plate member, 5 Apparatus main body, 6 Chassis, 7 Equipment unit, 7a Screw hole, 8 Screw, 9 Strip member, 9a, 9a ′ Base, 10 hole, 11 Insertion hole, 12 Dowel, 13 Protrusion for positioning.

Claims (3)

In the bracket formed by assembling the first bracket member and the second bracket member,
The first bracket member is
The top surface and one of the side surfaces have an open box shape, and a band-shaped member extends from the edge of the bottom surface of the opened side surface,
The second bracket member is
The top surface and one of the side surfaces have an open box shape, and an insertion hole for horizontally inserting the belt-like member is formed at the edge of the bottom surface of the opened side surface,
A hole is formed on one of the band-shaped member and the end side of the bottom surface, and a protrusion is formed on the other.
The first bracket member and the second bracket member are:
The band-shaped member is inserted into the insertion hole, the protrusion is fitted into the hole, and one opening of the hole is pressed to contact the band-shaped member in the insertion hole. A bracket assembly structure characterized by being assembled in a state in which the bracket member is pressed.   The bracket assembling structure according to claim 1, further comprising positioning protrusions formed at intervals corresponding to the width of the belt-like member at end portions of the bottom surface of the second bracket member. The band-shaped member is formed wider than a portion where the base connected to the edge of the bottom surface of the first bracket member is inserted into the insertion hole,
3. The bracket assembling structure according to claim 2, wherein the positioning protrusion comes into contact with the base of the belt-like member at a position where the protrusion is fitted into the hole.

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