JP2018067616A - Housing mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and firmly fix housings of various electronic/electric appliances, mechanical components and the like, including an acoustic device such as a speaker box, a lighting fixture and the like, on a support body such as a wall and ceiling.SOLUTION: A mounting fitting 20 to be fixed to a support body is provided with a fixing part 21 having a fixing surface 21a and mounting pieces 22 arranged parallel with the mounting surface 21a. A housing 10 has an accommodating part 40 formed on a back surface thereof, for accommodating the mounting fitting 20 slidably in a direction parallel with the mounting surface 21a. The accommodating part 40 is formed such that a receiving accommodating part for accommodating the mounting fitting 20 in a freely drawn and inserted manner, is connected to a holding accommodating part for accommodating the mounting fitting 20 in a state of regulating movement of mounting pieces in a direction orthogonal to the mounting surface 21a. Further, the housing 10 is formed with, from the front surface thereof, penetration holes 12 that reach the accommodating part 40, and the mounting fitting 20 is formed with screw holes to be coupled with screws that have penetrated through the penetration holes 12.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a housing mounting structure for mounting and fixing a housing such as various electronic / electrical devices and mechanical parts such as an acoustic device and a lighting fixture on a surface of a support such as a wall or a ceiling.

  When mounting and fixing a housing such as various electronic / electrical devices and mechanical parts such as an acoustic device and a lighting device to the surface of a support such as a wall or a ceiling, in Patent Document 1, for example, a structure for fixing a speaker box to a wall surface The structure which hooks and fixes the bracket of a speaker box with the mounting bracket fixed to the wall surface is disclosed. In this case, the mounting bracket is formed with two rails on both sides thereof, and a spring member having a hook portion is fixed on the inside thereof, while the speaker box has a convex portion that is engaged with the hook portion. The speaker box is fixed to the wall surface by hooking and sliding the bracket of the speaker box on the rail and locking the hook portion and the convex portion.

Japanese Utility Model Publication No. 7-1681

  However, since both sides of the bracket of the speaker box are positioned and slid to the two rails on both sides of the mounting bracket, it is necessary to match both the left and right sides to the rail when attaching and detaching the speaker box. Yes, it takes time. In addition, the hook part of the spring member of the mounting bracket and the convex part of the speaker box are locked, but the elastic force of the spring member is limited, the fixing strength is small, and the spring member resonates with the output from the speaker. There is also a risk of generating vibration noise.

  The present invention has been made in view of such circumstances, and a housing such as various electronic / electrical devices and mechanical parts such as an audio device such as a speaker box and a lighting device can be easily mounted on a support such as a wall or a ceiling. The purpose is to fix firmly and firmly.

  The housing mounting structure of the present invention has a mounting bracket fixed to the support and a housing fixed to the surface of the support by the mounting bracket, and the mounting bracket has a mounting surface to the support. And a mounting piece extending parallel to the mounting surface at a distance from each other, and the mounting bracket is slidably accommodated in a direction parallel to the mounting surface on the back surface of the housing. A receiving portion is formed, and the receiving portion receives the mounting bracket at one end in the sliding direction so as to be retractable in a direction perpendicular to the mounting surface, and the mounting bracket at the other end in the sliding direction. A holding housing portion that accommodates the mounting piece in a state in which movement of the mounting piece in a direction orthogonal to the mounting surface is restricted when arranged is provided in a communication state. Through holes reaching the accommodating portion from the side is formed on the mounting bracket, screw holes to couple the screws inserted through from the through-hole is formed.

After the mounting bracket fixed to the support body is received in the receiving housing portion of the housing, the housing is slid to the holding housing portion so that the movement in the direction orthogonal to the mounting surface is restricted, thereby making the housing a support body. Can be temporarily fixed. For this reason, even when the support is a wall or a ceiling, it does not fall off even if the hand is released from the housing in the temporarily fixed state, and the screwing operation from the front side can be easily performed. In this case, since it is finally fixed by screwing, the receiving accommodating portion and the holding accommodating portion can be formed with a sufficient margin with respect to the mounting bracket, and the housing to the mounting bracket The positioning operation can be facilitated.
In addition, since it is screwed without using a spring member, the casing can be firmly fixed to the support, and even when the casing is a casing for an audio device such as a speaker box, Generation | occurrence | production can be prevented and the outstanding acoustic characteristic can be maintained.

  In the housing mounting structure of the present invention, the holding housing portion includes a protruding portion protruding from a side surface with a gap between the holding housing portion, an end surface of the protruding portion, and a bottom surface of the holding housing portion. A groove portion that is communicated with the receiving housing portion and is capable of moving the mounting piece in the sliding direction, and an end surface of the projecting portion that faces the bottom surface of the holding housing portion within the groove portion. In part, a stopper portion that narrows the interval with the bottom surface of the holding housing portion within a range that allows sliding of the mounting piece is formed to protrude, and when the mounting bracket is disposed in the holding housing portion, The attachment piece may be opposed to the end surface of the projection portion while avoiding the stopper portion in the groove portion.

  When the support is a ceiling or a wall along the vertical direction, when the housing is temporarily fixed to the surface of the support, the weight causes the housing to be at least partially separated from the bottom surface of the storage portion. The attachment piece comes into contact with the end surface of the protrusion. A stopper part is formed to protrude from a part of the end surface of the projection part, and the attachment piece of the mounting bracket receives the attachment piece by avoiding the stopper part in the holding accommodation part and facing the end surface of the projection part. When the housing and the mounting bracket are moved relative to each other so as to move to the side, the mounting piece comes into contact with the stopper portion. For this reason, it is in a state in which further movement is restricted. Therefore, even if an external force is inadvertently applied to the housing, it does not fall off the mounting bracket and is safe.

In the housing mounting structure of the present invention, a plurality of leg portions that contact the surface of the support when attached to the mounting bracket are provided on the rear surface of the housing, and the center position of the region surrounded by these leg portions It is preferable that the holding housing portion is provided in the housing.
Since the fastening force of the screw at the time of attachment acts on the legs evenly, the attachment posture is stabilized.

  In the housing mounting structure of the present invention, it is preferable that an elastic body is provided on the ground contact surface of the leg portion. Generation of vibration can be effectively suppressed when the case is a case such as an audio device.

  ADVANTAGE OF THE INVENTION According to this invention, housings, such as various electronic / electrical equipments and mechanical parts, such as audio equipment, such as a speaker box, and a lighting fixture, can be easily and firmly fixed to support bodies, such as a wall and a ceiling.

It is the perspective view which looked at the housing | casing and attachment metal fitting of the speaker of embodiment of this invention from the back side. It is the perspective view which looked at the speaker and attachment bracket of FIG. 1 from the front side. FIG. 1A is a side view and FIG. 2B is a front view showing a mounting bracket used in FIG. It is a rear view of a housing | casing. It is sectional drawing which follows the AA line of FIG. (A) is a front view of a housing | casing, (b) is a side view. It is an enlarged view of the accommodating part which shows the state which has arrange | positioned the attachment metal fitting (it shows with a dashed-two dotted line) in the receiving accommodating part. It is an enlarged view of the accommodating part which shows the state which has arrange | positioned the attachment bracket (it shows with a dashed-two dotted line) in the holding | maintenance accommodating part. It is sectional drawing which follows the CC line of FIG. 8, and has shown the attachment metal fitting with the continuous line. It is sectional drawing which shows the state in the middle of fixing a housing | casing to a wall, and is equivalent to the cross section in alignment with the BB line of FIG.

  Hereinafter, an embodiment applied to a case mounting structure of the present invention when the case is a speaker case will be described with reference to the drawings.

Since the speaker 1 is not particularly limited, the casing 10 is illustrated and detailed illustration of the internal structure and the like is omitted, but in this embodiment, as shown in FIGS. The inside of the case 10 formed into a shape is partitioned into two sub chambers (not shown), and a speaker unit (not shown) is attached to the partition wall, The structure is provided with diaphragms 2 and 2 and is a speaker used as a subwoofer.
The speaker 1 is fixed to the surface of the wall (supporting body) 30 by the mounting bracket 20.

  In FIG. 2, when reference numeral 30 indicates a wall and indicates the direction of the housing 10 and the mounting bracket 20, the horizontal direction along the surface of the wall 30 is the X direction with reference to the posture attached to the wall 30. The vertical direction is the Y direction, and the direction perpendicular to the surface of the wall 30 is the Z direction. Further, in the housing 10, when attached to the wall 30, a surface facing the front is a front surface or a front surface, and a surface facing the wall 30 is a back surface.

  As shown in FIGS. 1 to 3, the mounting bracket 20 is formed by bending both ends of a strip-shaped metal plate having a constant width, and is fixed to the surface of the wall 30 at the center in the length direction. The fixed portion 21 is formed, both end portions thereof are bent in a crank shape, and the attachment piece 22 is formed at the tip end portion thereof. These attachment pieces 22 are formed in parallel with the attachment surface 21 a to the wall 30 of the fixing portion 21, and are provided so as to project in the both end directions of the attachment fitting 20. A plurality of holes 23 are formed in the fixing portion 21, and the fixing portion 21 has the mounting surface 21 a in contact with the surface of the wall 30 in a state where the length direction is arranged in the vertical direction (Y direction). It is fixed to the wall 30 by screws (not shown) inserted from 23. In this fixed state, the attachment pieces 22 at both ends are arranged in opposite directions (upward or downward) at positions spaced from the surface of the wall 30 by the same distance. It is arrange | positioned in the plane parallel to the surface of.

On the other hand, as shown in FIGS. 1 and 4 and the like, leg portions 11 are provided on the back surface of the housing 10 of the speaker 1 so as to be arranged at the four corners, and these four leg portions are provided. A housing portion 40 capable of housing the mounting bracket 20 is formed inside the region surrounded by 11.
The housing portion 40 is in a direction perpendicular to the surface of the wall 30 with respect to the mounting bracket 20 fixed to the wall 30 (a direction orthogonal to the mounting surface 21a of the fixing portion 21 of the mounting bracket 20; Z direction). It is formed in a concave shape that can receive the mounting bracket 20 when it is moved to the position and brought into contact with the wall 30 so as to cover the mounting bracket 20.

  In this case, as shown in FIGS. 7 to 9, the accommodating portion 40 has a rectangular concave shape in plan view, and the bottom surface 40 e is formed into a flat surface, and its depth (Z-direction dimension) D is the height of the mounting bracket 20. It is formed slightly smaller than H (see FIG. 3), and the length of the accommodating portion 40 (dimension in the direction along the length direction of the fitting 20 to be accommodated; dimension in the Y direction) L1 is both attachment pieces of the fitting 20 22 is formed slightly larger than the dimension L2 between the tips, and the width of the accommodating portion 40 (the dimension along the width direction of the mounting bracket 20 to be accommodated; the dimension in the X direction) W1 is sufficiently larger than the width W2 of the mounting bracket 20 It is formed in a large size with a sufficient margin, for example, a margin of about 1/4 of the width W2 of the mounting bracket 20 to be accommodated.

Of the side surfaces 40a to 40d that surround the four sides of the accommodating portion 40, the other three side surfaces 40b to 40d, except for one side surface in the width direction (the left side surface in FIGS. 7 and 8) 40a, include the accommodating portion. A protrusion 41 projecting inwardly of 40 is integrally formed. One of these protrusions 41 is provided on two side surfaces (upper side surface and lower side surface in FIG. 7) 40b and 40c that are arranged to face each other in the vertical direction so as to constitute both ends of the accommodating portion 40 in the length direction. In total, four are formed on the side surface 40d along the other vertical direction (Y direction) (right side surface in FIG. 7).
Hereinafter, with reference to FIG. 7, the left side surface may be referred to as the left side surface 40a, the upper side surface may be referred to as the upper side surface 40b, the lower side surface may be referred to as the lower side surface 40c, and the right side surface may be referred to as the right side surface 40d.

In this case, the protrusions 41 formed on the upper side surface 40b and the lower side surface 40c of the housing part 40 are provided at positions where the mounting pieces 22 are arranged when the mounting bracket 20 is housed in the housing part 40. ing. Further, the two projecting portions 41 formed on the right side surface 40d of the accommodating portion 40 are arranged one by one on the side of each mounting piece 22 when the mounting bracket 20 is accommodated in the accommodating portion 40. Is provided.
These protrusions 41 are formed in the shape of prismatic ribs having a square cross section, and are provided along the depth direction of the accommodating portion 40. However, the end surfaces 41a do not reach the bottom surface 40e of the accommodating portion 40, respectively. Instead, a groove portion 42 having a gap g1 larger than the thickness t of the attachment piece 22 is formed between the bottom surface 40e of the housing portion 40.

  In addition, the both protrusions 41 arranged on the upper side surface 40b and the lower side surface 40c in a state of being vertically opposed at both ends in the length direction (vertical direction; Y direction) of the accommodating portion 40 are the left side surface 40a that does not have the protrusion portion 41. To a predetermined distance smaller than the width dimension W2 of the mounting bracket 20 (for example, an interval of about 1/3 of the width dimension of the mounting bracket). For this reason, the mounting piece 22 of the mounting bracket 20 has a distance corresponding to the distance from the left side surface 40a without the projection 41 to the projection 41 on the upper side surface 40b and the lower side surface 40c (1 of the width dimension of the mounting bracket 20). The protrusions 41 on the upper side surface 40b and the lower side surface 40c when being accommodated in the accommodating portion 40 at a position shifted inward from the side edge (the left side edge in FIG. 7) 20a. The notch part 24 for avoiding is formed.

Further, when the notch 24 is engaged with the protrusion 41, one side edge (the left side edge in FIG. 7) 20a of both side edges of the mounting bracket is formed on the left side surface (protrusion) of the housing 40. Dimension that does not reach the protruding portion 41 of the right side surface 40d of the housing portion 40, although the other side edge (right side edge in FIG. 7) 20b is disposed at a position close to the side 40a). Set to relationship. Therefore, the mounting bracket 20 and the housing 10 are connected to the depth of the housing portion 40 in a state in which the notches 24 of the both mounting pieces 22 are engaged with the projections 41 on the upper side surface 40b and the lower side surface 40c of the housing portion 40. By relatively moving in the vertical direction (Z direction), the mounting bracket 20 can be housed in the housing portion 40 until the mounting piece 22 contacts the bottom surface 40e of the housing portion 40.
As for the side edge of the mounting bracket 20, the left side edge is referred to as the left side edge 20a and the right side edge is referred to as the right side edge 20b with reference to FIG. However, since FIG. 7 shows the back side of the housing 10, as shown in FIG. 2, when the direction is shown with the wall 30 facing the front when attached to the wall 30, the directions are opposite to each other.

Then, in a state where the mounting bracket 20 is housed in the housing portion 40, the mounting bracket 20 is connected to the width W1 of the housing portion 40 via the groove portion 42 between the end surface 41a of the protrusion 41 and the bottom surface 40e of the housing portion 40. It is possible to slide in the width direction within the entire area.
In this case, the mounting bracket 20 is accommodated in the accommodating portion 40 in a state where there is a slight gap in the length direction (vertical direction; Y direction), but as described above in the width direction (X direction). In this way, the width W1 of the accommodating portion 40 is formed in a large dimension with a margin of about 1/4 of the width W2 of the mounting bracket 20, so that the distance (distance about 1/4 of the width W2) is within the range. It can slide along the bottom surface 40e of the accommodating portion 40.

  On the other hand, the gap g1 of the groove portion 42 between the end surface 41a of the protrusion 41 and the bottom surface 40e of the accommodating portion 40 is sufficiently larger than the thickness t of the attachment piece 22 of the attachment fitting 20, and the attachment piece of the attachment fitting 20 therebetween. The gap is such that the mounting bracket 20 can be moved in the depth direction (Z direction) of the housing portion 40 when the mounting bracket 22 is disposed. Even when the mounting bracket 20 is inclined with respect to the housing 10 so that the end of the other mounting piece 22 is lifted from the bottom surface 40e in a state where the portion is in contact with the bottom surface 40e of the housing unit 40, the other side When the end of the mounting piece 22 abuts on the end surface 41a of the protrusion 41, the dimension is set such that the mounting bracket 20 does not fall off.

  Each notch 24 is formed in a square shape like the protrusion 41 having a square cross section, but is formed in a slightly larger planar shape than the protrusion 41 and has a slight gap. It is engaged with the protrusion 41 in a state.

Further, the end surface (end surface opposite to the bottom surface 40e of the housing portion 40) 41a of the projection 41 formed on the upper side surface 40b and the lower side surface 40c at both ends in the length direction of the housing portion 40 is provided on the bottom surface of the housing portion 40. A stopper portion 43 that narrows the distance from 40e (the gap between the groove portions 42) is formed to protrude. As shown in FIG. 9, the stopper portion 43 has a size that occupies almost half of the end surface 41 a of the projecting portion 41, and the thickness t of the mounting piece 22 of the mounting bracket 20 between the stopper portion 43 and the bottom surface 40 e of the housing portion 40. It is formed with a protruding amount that leaves a slightly larger gap g2 (where g2 <g1), and is provided close to the left side surface 40a side that does not have the protruding portion 41 of the end surface 41a of the protruding portion 41.
In this case, from the right side surface 40d having the two projecting portions 41 to the outer side surface (the left side surface in FIGS. 7 and 8) of the projecting portion 41 formed on the upper side surface 40b and the lower side surface 40c of the accommodating portion 40. The distance is set to a dimension slightly larger than the width W2 of the mounting bracket 20.

  Further, the mounting piece 22 of the mounting bracket 20 is cut out at a corner (left corner in FIG. 7) that is disposed at a position close to the left side surface 40 a that does not have the protrusion 41 when stored in the storage portion 40. The relief part 25 is formed separately from the notch part 24. The relief portion 25 is formed in the same length as the cutout portion 24 (dimension along the length direction of the mounting bracket 20; Y-direction dimension) and about half the width of the cutout portion 24 (X-direction dimension). . Further, since the relief portion 25 and the notch portion 24 are formed in the front end portion of the attachment piece 22 in the width direction, the portion between the relief portion 25 and the notch portion 24 is a small piece. The protrusion 26 is left as it is.

  Then, the right side edge 20b of the mounting bracket 20 opposite to the left side edge 20a where the relief part 25 is provided is brought into contact with the right side surface 40d where the two protrusions 41 of the accommodating part 40 are provided. Sometimes, the relief part 25 is arranged directly below the stopper part 43 (the relief part 25 and the stopper part 43 are arranged opposite to each other in the Z direction), and the small projection 26 is formed on the side of the projection part 41 of the stopper part 43. It is arranged to face the end surface 41a in the Z direction. For this reason, when the escape portion 25 is arranged directly below the stopper portion 43, if the mounting bracket 20 is moved so as to float from the bottom surface 40 e of the storage portion 40, the stopper portion 43 is small in a state where it is placed in the escape portion 25. The piece-like projection 26 comes into contact with the end surface 41a of the projection portion 41, and the mounting piece 22 is in a state in which sliding in the left-right direction is restricted between the stopper portion 43 and the right side surface 40d.

  The housing portion 40 and the mounting bracket 20 having such a shape are formed by forming the notch portion 24 formed in the mounting piece 22 of the mounting bracket 20 on the side surfaces 40b and 40c at both ends in the length direction of the housing portion 40. By moving the mounting bracket 20 and the housing 10 relative to each other so that the mounting bracket 20 is inserted in the depth direction (Z direction) of the housing portion 40 in a state of being engaged with the protrusion 41 that is present, 7, the mounting bracket 20 is accommodated in the accommodating portion 40. In this state, the mounting bracket 20 is disposed at a position close to the left side surface 40 a that does not have the protruding portion 41, of the side surfaces 40 a and 40 d at both ends in the width direction of the housing portion 40. At this position, the notch 24 of the mounting piece 22 of the mounting bracket 20 is disposed directly below the protrusion 41 of the storage section 40 (position facing the Z direction). If it moves relative to the housing 10 so as to be pulled up along the vertical direction (Z direction), the mounting bracket 20 can be detached from the housing portion 40. As described above, a portion of the accommodating portion 40 that can be taken in and out while engaging the mounting bracket 20 with the protruding portion 41 is referred to as a receiving accommodating portion 40A.

The mounting bracket 20 and the housing 10 are slid relative to each other in the width direction (X direction) from the receiving housing portion 40A, and the mounting bracket is attached to the other side surface (right side surface) 40d in the width direction of the housing portion 40. When the right edge 20b of 20 is brought into contact, as shown by a chain line in FIG. 8, a groove portion between the end surface 41a of the two projections 41 provided on the right side surface 40d and the bottom surface 40e of the accommodating portion 40 is provided. 42, the mounting piece 22 of the mounting bracket 20 is arranged in an inserted state, and the notch 24 of the mounting piece 22 is provided from directly below both protrusions 41 provided on the upper side surface 40b and the lower side surface 40c of the accommodating portion 40. , And the small piece-like projections 26 and the relief portions 25 are arranged directly below the projection portions 41, and the end surfaces 41a of the projection portions 41, the small piece-like projections 26, and the relief portions 25 are arranged to face each other.
At this position, the mounting bracket 20 cannot be moved away from each other so that the mounting bracket 20 is pulled up along the depth direction (Z direction) of the storage portion 40, and the mounting bracket 20 is stored in the storage portion 40. It becomes. A portion of the housing portion 40 in which the mounting bracket 20 is housed in a state where movement along the depth direction (Z direction) of the housing portion 40 is restricted is referred to as a holding housing portion 40B.

  The holding housing portion 40B is attached to the mounting bracket 20 at the center position of the quadrangular figure formed by the four leg portions 11 of the housing 10 (intersection position of the two diagonal lines of the leg portion 11 shown by a one-dot chain line in FIG. 4). The center C2 of the planar shape is arranged. And in this holding | maintenance accommodating part 40B, although the attachment metal fitting 20 cannot be detached from the accommodation part 40, it is between the surface of the attachment piece 22 of the attachment metal fitting 20, and the end surface 41a of the projection part 41 of the accommodating part 40. Since a slight gap (g1-t) is formed, the mounting bracket 20 and the accommodating portion 40 are in a state of being relatively movable in the depth direction (Z direction) within the range of the gap.

Moreover, in this holding | maintenance accommodating part 40B, the escape part 25 of the attachment piece 22 is arrange | positioned directly under the stopper part 43 of the projection part 41, and is facing the depth direction (Z direction). Therefore, when the surface of the attachment piece 22 is brought into contact with the end surface 41a of the protrusion 41, the stopper portion 43 is disposed in the escape portion 25, and interference with the attachment piece 22 is avoided.
In addition, in this embodiment, the receiving housing portion 40A and the holding housing portion 40B are arranged in a state in which a part in the width direction is overlapped (overlapping state), but the mounting bracket 20 is a mutual housing portion 40A, 40B. If the receiving housing portion 40A is formed at one end portion in the sliding direction and the holding housing portion 40B is formed at the other end portion, the housing portions 40A and 40B do not overlap each other. It may be provided in a separated state.

Further, in the housing 10, two through holes 12 that penetrate in the front-rear direction of the housing 10 are formed in the partition wall 44 that constitutes the bottom wall of the housing portion 40. These through holes 12 are provided on the back surface of the housing 10 so as to open to portions where both the mounting pieces 22 of the mounting bracket 20 disposed in the holding housing portion 40B are disposed. Further, screw holes 27 are formed in both mounting pieces 22 of the mounting bracket 20, and when the mounting bracket 20 is arranged in the holding housing portion 40 </ b> B, as shown in FIG. The screw hole 27 of the mounting bracket 20 is arranged on the same axis.
On the other hand, on the front side of the partition wall 44 of the housing 10, as shown by a chain line in FIG. 5, the cylindrical portion 16 is integrally provided on the same axis as the through hole 12. The cylindrical portion 16 has an inner diameter larger than that of the through hole 12, and the cylindrical portion is viewed from the front side of the casing 10 with the through hole 12 of the casing 10 and the screw hole 27 of the mounting bracket 20 being matched. A screw is inserted into the screw 16, and the tip of the screw is screwed into the screw hole 27 of the mounting bracket 20 through the through-hole 12, so that the head of the screw comes into contact with the partition wall 44 and the housing 10 is fixed to the mounting bracket 20. can do.

  In FIG. 5 and the like, reference numeral 17 denotes a cover member that closes a portion between the two diaphragms 2 on the front surface of the housing 10, and the cover member 17 has a cover member as shown in FIG. An opening 18 that communicates with the cylindrical portion 16 is formed. The front surface of the housing 10 is covered with a grill net (not shown).

An elastic body 15 such as rubber is provided on the ground contact surface of each leg portion 11. A coating layer 28 made of an elastic material such as rubber is also formed on the mounting surface 21 a of the fixing portion 21 of the mounting bracket 20.
2 and 3, reference numeral 51 </ b> A is a mark provided on the mounting bracket 20 to instruct that the mounting bracket 20 is directed upward when the mounting bracket 20 is attached to the wall 30. It is a sign provided on the mounting bracket 20 to indicate the sliding direction. 2 and 6, reference numeral 52 is a sign provided on the housing 10 for instructing to turn upward when the housing 10 is attached. Further, in FIG. 1 and the like, reference numeral 55 denotes a terminal for external wiring provided on the back surface of the housing 10.

When fixing the housing 10 of the speaker 1 configured as described above to the surface of the wall 30 using the mounting bracket 20, first, the length direction of the mounting bracket 20 is arranged in the vertical direction (Y direction). The fixing portion 21 is screwed to the wall 30. Next, one end side (left side in FIG. 1, right side when viewed from the front in FIG. 2) of the housing part 40 in the width direction (X direction) of the housing 10 is covered with the mounting bracket 20. The mounting bracket 20 is accommodated in the receiving accommodating portion 40 </ b> A and is brought close to the surface of the wall 30. At this time, the notch 24 provided on the mounting piece 22 of the mounting bracket 20 engages with the protrusions 41 on the upper side surface 40b and the lower side surface 40c of the accommodating portion 40, and the protrusion 41 is formed in a prismatic shape. Therefore, the housing 10 can be brought close to the surface of the wall 30 so as to be guided by the protrusions 41.
Next, the housing 10 is moved along the surface of the wall 30 in the X direction (rightward in FIG. 2) with respect to the mounting bracket 20 so that the mounting bracket 20 accommodated in the receiving housing section 40A is moved to the holding housing section 40B. The right side edge (side edge arranged on the left side in FIG. 2) 20b of the mounting bracket 20 is brought into contact with the right side surface 40d of the housing portion 40 by sliding.

  Next, a screwing operation is performed. At this time, it may be necessary to release the hand from the housing 10 once. As described above, in the state in which the mounting bracket 20 is accommodated in the holding accommodation portion 40B, the side portion of the attachment piece 22 is formed in the groove portion 42 between the end surface 41a of the projection 41 of the accommodation portion 40 and the bottom surface 40e of the accommodation portion 40. Therefore, even when the hand is released from the housing 10, the housing 10 is slightly tilted forward due to its own weight as indicated by the arrow in FIG. Will not fall off. Further, in this posture described above, since the stopper portion 43 of the protruding portion 41 of the accommodating portion 40 is disposed in the escape portion 25 of the mounting piece 22, the mounting bracket 20 and the housing 10 do not slide carelessly. . For this reason, the screwing operation from the front side can be easily performed in a state where the hand is released from the housing 10.

  When the casing 10 is fixed to the mounting bracket 20 in a screwed state, the mounting bracket 20 and the casing 10 are pressed against each other by fastening the screws in the fixed state. 22 is fixed in a pressed state against the bottom surface 40e of the housing portion 40 of the housing 10, and the mounting piece 22 is provided in parallel with the mounting surface 21a of the fixing portion 21, so that the housing 10 Held parallel to the surface.

  In the state where the casing 10 is fixed to the surface of the wall 30 in this way, the center C2 of the mounting bracket 20 accommodated in the holding accommodating portion 40B is formed by the four leg portions 11 in contact with the surface of the wall 30. Since it is arranged at the center C1 of the region to be applied, the fastening force of the screws at the time of attachment acts evenly on the four leg portions 11, and the fixed state can be stabilized. In addition, the leg portion 11 is provided with an elastic body 15, and the covering layer 28 made of an elastic material is also provided on the mounting surface 21 a of the fixing portion 21 of the mounting bracket 20. 11 and the fixing part 21 of the mounting bracket 20 are in close contact with the surface of the wall 30, the fixing state can be further stabilized, and transmission of vibration sound due to resonance from the surface of the wall 30 can also be prevented. Excellent acoustic characteristics can be maintained.

In addition, this invention is not limited to the said embodiment, A various change can be added in the range which does not deviate from the meaning of this invention.
For example, the stopper portion 43 is formed on the left side surface 40a side of the accommodating portion 40 on the end surface 41a of the projection portion 41, and the relief portion 25 is formed on the corner portion of the mounting piece 22. The portion 43 may be formed, the positions of the escape portion and the small piece projection may be reversed, the relief portion may be formed at a position inside the side edge, and the small piece projection may be formed at the corner. Moreover, you may make the width | variety of an attachment metal fitting small so that the side part of the part in which the relief part is formed may be cut off, without forming an escape part. In short, when the mounting piece is disposed in the groove between the projection and the bottom surface of the holding housing in the holding housing, the mounting piece can be opposed to the end surface of the projection, avoiding the stopper. Just do it.
Moreover, although demonstrated as an example attached to the surface of the wall 30 in embodiment, this invention is applicable also when attaching to a ceiling. Moreover, it is good also as a structure which forms a recess in the surface of a wall or a ceiling, and attaches to the bottom face etc. of the recess. The support of the present invention is constituted by these walls, ceilings, and the like, and the surface of the support includes not only the surfaces of the walls and ceiling but also the inner surfaces of the recesses formed on these surfaces.

  DESCRIPTION OF SYMBOLS 1 ... Speaker, 2 ... Diaphragm, 10 ... Housing | casing, 11 ... Leg part, 12 ... Through-hole, 15 ... Elastic body, 16 ... Cylindrical part, 17 ... Cover member, 18 ... Opening part, 20 ... Mounting bracket, 20a , 20b ... side edge, 21 ... fixed part, 21a ... attachment surface, 22 ... attachment piece, 23 ... hole, 24 ... notch part, 25 ... relief part, 26 ... small protrusion, 27 ... screw hole, 28 ... Covering layer, 30 ... wall, 40 ... accommodating portion, 40A ... receiving accommodating portion, 40B ... holding accommodating portion, 40a to 40d ... side surface, 40e ... bottom surface, 41 ... projection portion, 41a ... end surface, 42 ... groove, 43 ... stopper Part 44, partition wall, C1, central position of the region surrounded by the leg part, C2, center of the mounting bracket, g1, g2, gap.

Claims (4)

  A mounting bracket that is fixed to the support; a housing that is fixed to the surface of the support by the mounting bracket; and a fixing portion that has a mounting surface for the support, and the mounting surface. And an attachment piece extending in parallel with an interval to the housing, and a housing portion is formed on the rear surface of the housing for slidably housing the mounting bracket in a direction parallel to the mounting surface. Is a receiving housing portion that accommodates the mounting bracket in a direction perpendicular to the mounting surface at one end portion in the sliding direction, and is orthogonal to the mounting surface when the mounting bracket is disposed at the other end portion in the sliding direction. And a holding housing portion that accommodates the mounting piece in a state in which movement of the mounting piece is restricted in a communicating state, and reaches the housing portion from the front side of the housing. Through holes are formed, the on mounting bracket, housing mounting structure, wherein a screw hole for coupling a screw inserted from the through hole is formed.   The holding accommodating portion includes a protrusion protruding from a side surface with a gap between the holding accommodating portion and the receiving accommodating portion between an end surface of the protruding portion and the bottom surface of the holding accommodating portion. A groove portion that communicates and allows the mounting piece to move in the sliding direction is formed, and a part of the end surface of the projection portion that faces the bottom surface of the holding housing portion in the groove portion is formed on the holding housing portion. A stopper portion that narrows the distance from the bottom surface within a range that allows the mounting piece to slide is formed to project, and when the mounting bracket is disposed in the holding housing portion, the mounting piece is the stopper in the groove portion. The housing mounting structure according to claim 1, wherein the housing mounting structure is opposed to the end surface of the protruding portion while avoiding the portion.   A plurality of legs that come into contact with the surface of the support when attached to the mounting bracket are provided on the rear surface of the housing, and the holding housing is provided at a central position of an area surrounded by the legs. The housing mounting structure according to claim 1, wherein the housing mounting structure is provided.   The case mounting structure according to claim 3, wherein an elastic body is provided on a ground contact surface of the leg portion.

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