JP2010177857A - Embedding fixture for board embedded device, board embedded device, and dome camera - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a board embedding fixture (50) for a board embedded device capable of executing an embedding operation for burying embedding fixture in a board easily and successfully, and ensuring high operation efficiency regardless of thickness of the board. <P>SOLUTION: The embedding fixture for a board embedded device has a base (51) having a mounting means (51a) formed by a plate material and loaded with a board embedded device, a plurality of legs (52) coupled to an end part of the base (51) and elongated on one side to the base (51), a plurality of flanges (53) coupled to each front end of the plurality of legs (52) and extended outward, and a plurality of arms (54) coupled to one side end part (52a) in each of the plurality of legs (52), and elongated inward to an elongating surface of the leg (52) from the coupling part (54b), and provided with an elongating part (55) at a front end thereof, which elongates in a direction away from the base (51). <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an embedding tool for a board embedding device, a board embedding device, and a dome camera.

2. Description of the Related Art There is known an electric device or an electronic device that is used by being embedded in a ceiling board or a side wall board such as a room or a hall.
Examples of such devices include lighting fixtures, speakers, air conditioners, and dome cameras.
These devices are attached so as to be embedded in a hole provided in advance in the board via a dedicated implanter or an embedding member provided in the device.
A specific example of the ceiling embedding device and the embedding structure is described in Patent Document 1.

JP 2000-244782 A

  According to the conventional ceiling embedding device (dome camera) and the embedding structure as shown in Patent Document 1, the lower side for sandwiching the ceiling board from the indoor side when inserted into the hole provided in the ceiling board By tightening an embedding tool body having a pair of sandwiching plates and an upper clamping plate formed as a separate member from the embedding tool body to sandwich the ceiling board from the back side of the ceiling so as to sandwich the ceiling board with fastening screws. Fix the embedded body to the ceiling board. The embedding tool body is formed with female screws at multiple locations. By using these female screws, the ceiling embedding device is fixed to the ceiling board via the embedding unit main body. It is supposed to be.

  However, this embedded structure requires a screw tightening operation. If the board is a ceiling board, this is a work to screw the screw from the indoor side toward the upper ceiling, and since it is performed at a high place, the work is difficult and the posture of the operator becomes unstable, which is good There is a problem that it is difficult to perform proper screwing.

  Even if the board is a wall board, the work is not always easy because it is a screwing work in the horizontal direction, and the work may be a work at a high place, so the same problem as in the case of the ceiling board may occur.

  In addition, it is necessary to use a long mounting screw for mounting the board embedding device in consideration of mounting when the board is thick. Problems arise.

Therefore, the problem to be solved by the present invention is that the embedding work for embedding the embedding tool into the board is easy, the embedding work can be performed well, and the embedding work is performed with high work efficiency regardless of the thickness of the board. Provided is a board embedding device for a board embedding device.
Further, in the board embedding device and the dome camera provided with the embedding member, the embedding operation to the board through the embedding member is easy, and the embedding operation can be performed well. A board embedding device and a dome camera that can be performed with high work efficiency.

In order to solve the above problems, the present invention has the following configurations 1) to 7) as means.
1) An embedding tool for a board embedding device for embedding a board embedding device (60) in a hole (302) provided in the board (301),
A base part (51) having a mounting means (51a) formed of a plate material for mounting the board embedding device;
A plurality of legs (52) connected to an end of the base (51) and extending to one side with respect to the base (51);
A plurality of flanges (53) connected to the respective ends of the plurality of legs (52) and projecting outward;
The plurality of legs (52) are connected to one side end (52a) of each of the plurality of legs (52) and extend inward from the connecting portion (54b) to the extending surface of the legs (52) and to the distal end. A plurality of arms (54) having extending portions (55) extending in a direction away from the base (51);
An embedding tool (50) for a board embedding device, comprising:
2) The board embedding according to 1), wherein the connecting portion (54b) includes a bendable portion (54c) that facilitates bending of the arm portion (54) with respect to the leg portion (52). Device implant (50).
3) The extending portion (55) is formed with a bending guide portion (601 to 604) having a partially small cross-sectional area, and the embedder (2) of the board embedding device according to (2), 50).
4) A base portion (600a) on which an electrical component or an electronic component is mounted, and an embedding tool (500) attached to the base portion (600a), and a hole (302 provided in the board (301)). In the board embedding device embedded in
The implant (500) is
A base part (51) formed of a plate material and attached to the base part;
A plurality of legs (52) connected to the (51) end of the base and extending to one side relative to the base (51);
A plurality of flanges (53) connected to the respective ends of the plurality of legs (52) and projecting outward;
The plurality of legs (52) are connected to one side end (52a) of each of the plurality of legs (52) and extend inward from the connecting portion (54b) to the extending surface of the legs (52) and to the distal end. A plurality of arms (54) having extending portions (55) extending in a direction away from the base (51);
A board embedding device (600) characterized by comprising:
5) A space forming portion at a portion of the base portion (600a) facing the inner surface so as to form a predetermined space (S) between the inner surface of the arm portion (54) and the base portion (600a). The board embedding device (600) according to 4), wherein (600a1) is provided.
6) A base part (600a) on which a camera (600c) is mounted, a dome part (600b) that has light transmission and is detachable from the base part (600a), and is attached to the base part (600b). A dome camera that is used by being embedded in a hole (302) provided in the board (301).
The implant (500) is
A base part (51) formed of a plate material and attached to the base part;
A plurality of legs (52) connected to the (51) end of the base and extending to one side relative to the base (51);
A plurality of flanges (53) connected to the respective ends of the plurality of legs (52) and projecting outward;
The plurality of legs (52) are connected to one side end (52a) of each of the plurality of legs (52) and extend inward from the connecting portion (54b) to the extending surface of the legs (52) and to the distal end. A plurality of arms (54) having extending portions (55) extending in a direction away from the base (51);
A dome camera (600) characterized by comprising:
7) A space forming portion at a portion of the base portion (600a) facing the inner surface so as to form a predetermined space (S) between the inner surface of the arm portion (54) and the base portion (600a). (600a1) is provided, and the dome camera (600) according to 6).

According to the present invention, an embedding operation for embedding a board embedding tool in a board is easy, can be performed well, and can be performed with high work efficiency regardless of the thickness of the board.
In addition, in a board embedding device and a dome camera equipped with a board embedding member, the embedding operation to the board via the board embedding member is easy and can be performed well, and the work is high regardless of the board thickness. There is an effect that it can be done efficiently.

It is a three-view figure which shows the Example of the embedding tool of the board embedding apparatus of this invention. It is a perspective view which shows the Example of the embedding tool of the board embedding apparatus of this invention. It is a 1st figure for demonstrating the operation | work which embeds the Example of the embedding tool of the board embedding apparatus of this invention on a board. It is the 2nd figure for demonstrating the operation | work which embeds the Example of the embedding tool of the board embedding apparatus of this invention on a board. It is sectional drawing for demonstrating the state which embedded the Example of the embedding tool of the board embedding apparatus of this invention in the board. It is a perspective view which shows the Example of the board | substrate embedding apparatus of this invention. It is a partial expansion perspective view for demonstrating the Example of the embedding tool of the board embedding apparatus of this invention. It is a figure for demonstrating the modification of the Example in the embedding tool of the board embedding apparatus of this invention. It is a perspective view for demonstrating the other modification of the Example in the embedding tool of the board embedding apparatus of this invention. It is a fragmentary perspective view for demonstrating another modification of the Example in the embedding tool of the board embedding apparatus of this invention.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to FIGS.

FIG. 1 is a three-plane view showing an embodiment of an embedding tool of a board embedding device according to the present invention. FIG. 1 (a) is a plan view, FIG. 1 (b) is a side view, and FIG. FIG.
FIG. 2 is a perspective view showing an embodiment of the embedding tool of the board embedding device of the present invention.

  The embedding tool 50 of this embodiment is formed by pressing a metal plate material. An example of the material is an iron plate, and the thickness thereof is, for example, 0.8 mm. It should be plated for rust prevention.

The embedment 50 includes a flat base 51, a pair of leg portions 52, 52 bent substantially at right angles from one end to the other side of the base 51, and the tips of the leg portions 52 on the same plane. And a flange portion 53 that is bent outward so as to extend.
In this example, each flange 53 is substantially parallel to the base 51.
The outermost end portion 53a of the flange portion 53 is formed in an arc shape whose center protrudes most outward.

  In addition, an arm portion 54 that is bent inward at an angle θ1 with respect to the outer surface of each leg portion 52 is formed on one side end portion 52a of the side end portions of each leg portion 52. Yes. In this example, it is bent toward the other leg 52.

The arm portion 54 will be described in detail. The arm portion 54 has a predetermined width W1 and a predetermined extension length L1 on the base 51 side, and is provided so as to be connected to the leg portion 52 by the connecting portion 54b.
Moreover, the arm part 54 has the extension part 55 extended toward the collar part 53 in the front end side, and as shown to FIG. 1 and FIG. .

  The base 51 is formed with a pair of female screws 51 a as mounting means for a board embedding device attached to the embedding tool 50.

  As shown in FIG. 1A, the angle θ1 formed between the leg 52 and the arm 54 is a diameter of a line segment Dm1 connecting the pair of corners P1 and P2 on the side of the base 51 where the legs 52 are connected. Is set so that the entire arm portion 54 is included in the range surrounded by the circle CR1.

  On the other hand, the shape of the outermost end 53a of each flange 53 is an arc of a circle CR2 having a diameter Dm2 concentric with the diameter Dm1.

Further, the distance T1 shown in FIG. 1B, that is, the distance T1 between the distal end portion 55a of the extending portion 55 of the arm portion 54 and the contact surface 53b that is the surface on the base portion 51 side of the collar portion 53 is the embedded portion. The thickness is set to be smaller than the minimum thickness among various board thicknesses assumed to be embedded.
Further, the distance T2 shown in FIG. 1B, that is, the distance T2 between the end portion 54a opposite to the base portion 51 and the contact surface 53b in the width W1 portion where the arm portion 54 is connected to the leg portion 52, The thickness is set to be larger than the maximum thickness among various board thicknesses assumed to be embedded.

  Next, an operation procedure for embedding the embedding tool 50 in the board 301 will be described with reference to FIGS.

As shown in FIG. 3, a circular embedding hole 302 is previously formed in the board 301 as a mounting hole.
The embedding hole 302 for embedding the embedding tool 50 does not need to be circular, but is preferably a circular hole in terms of work efficiency. It is sufficient that at least the base 51 passes and the flange 53b cannot pass therethrough.

The diameter φa of the embedding hole 302 is larger than a line segment Dm1 connecting the pair of corners P1 and P2 in the base 51 of the embedding tool 50, and the shape of the outer end 53a of each flange 53 is an arc. It is set smaller than the diameter Dm2 of the circle CR2.
That is, Dm1 <φa <Dm2.
Thereby, the base 51 of the embedding tool 50 can be inserted into the embedding hole 302.

Further, when the base 51 is inserted into the embedding hole 302, the contact surface 53b of each flange 53 abuts against the surface 301b of the board 301, so that the insertion limit position of the embedding tool 50 relative to the board 301 in the arrow D1 direction is set. It is prescribed.
Further, the extension length L1 of the arm portion 54 is set to satisfy φa <Dm1 + 2 × L1.
Thereby, as will be described in detail later, when the arm portion 54 is deformed, the extended portion 54 of the arm portion 54 can be brought into contact with the back surface 301 a side of the board 301.

  In the procedure of the embedding work, first, an inserting work for inserting the embedding tool 50 into the embedding hole 302 is performed.

  FIG. 3 is a perspective view seen from the back of the ceiling when the board 301 is a ceiling board. Hereinafter, for convenience, the surface on the back side of the ceiling is referred to as a back surface 301a, and the surface on the opposite side is referred to as a front surface 301b.

As shown in FIG. 3, the embedding tool 50 is inserted into the embedding hole 302 from the surface 301b side in the arrow D1 direction. This insertion is performed until the abutting surface 53b of the flange 53 comes into contact with the surface 301b of the board 301.
This state is referred to as an insertion completion state.
FIG. 3 is a perspective view showing the insertion completion state.

  In the insertion completed state, the position in the insertion direction (D1 direction) of the distal end portion 55a of the extension portion 55 in the arm portion 54 is that the distance T1 has various board thicknesses assuming that the implanter 50 is embedded. Therefore, it does not reach the back surface 301 of the board 301 and is in the middle of the end surface of the embedded hole 302 that is separated from the back surface 301a by a distance T11.

  Further, the position in the insertion direction (D1 direction) of the end portion 54a in the arm portion 54 is set such that the distance T2 is larger than the maximum thickness among the thicknesses of various boards assumed to embed the embedding tool 50. Therefore, it is located at a distance T22 from the back surface 301a beyond the back surface 301a of the board 301.

Next, the fixing work to the board 301 of the embedding tool 50 inserted in the embedding hole 302 is performed.
That is, as shown in FIG. 4, the arms 54 are bent in a direction that opens outward (in the direction of arrow B) with a finger or a tool (driver's handle) or the like.
In other words, the arm portion 54 is formed so as to be bent in the direction of opening outward by the force of a human hand.

This bending work will be described in detail.
When the arm portion 54 is bent at a certain angle in the initial stage of bending, the distal end side of the extending portion 55 comes into contact with the end surface of the embedded hole 302.
If further force is applied from there to attempt to bend the arm portion 54, the extension portion 55 starts to bend in the direction of arrow C in FIG. 4.
That is, the extension part 55 is formed so as to bend and deform to a drag force applied to the extension part 55 so as to prevent the leg part 52 from being bent by a human hand.

When this bending progresses and the position of the tip 55b of the extended portion 55 passes through the embedded hole 302 and falls to the back surface 301a side of the board 301, the contact resistance between the tip 55b and the embedded hole 302 is released, and more Bending proceeds with little bending resistance.
Then, as shown in FIG. 4, when the entire end portion 55 b is bent to the point where it rides on the back surface 301 a of the board 301, the bending operation is finished.
By this bending, the vicinity of the connecting portion 54b with the leg portion 52 which is the base of the arm portion 54 is plastically deformed.

Regarding the bending of the extending portion 55, plastic deformation occurs when the distance T11 is greater than a predetermined value, and elastic deformation occurs when the distance T11 is smaller.
In the case of elastic deformation, the bent extended portion 55 urges the back surface 301b of the board 301 by an elastic repulsive force.
Even in the case of plastic deformation, the bent extended portion 55 can bias the back surface 301b of the board 301 by its spring back.

  In any case, after the bending operation is finished, the embedment tool 50 has the distal end portion 55a of the extension portion 55 in contact with the back surface 301a of the board 301, and the extension portion 55 and the contact surface 53b of the flange portion 53. Then, the board 301 is attached to the board 301 by sandwiching it.

  This state is shown in FIG. FIG. 5 is an S1-S1 cross-sectional view showing a state where the implanter 50 and the board 301 in FIG. 4 are cut along a straight line passing through the corners P1, P2 of the implanter 50.

Furthermore, a desired board embedding device can be attached to the embedding tool 50 that has been embedded in the board 301. The board embedding device has an electrical component or electronic component mounted therein, and examples thereof include a lighting fixture, a speaker, an air conditioner, a wireless device, and a camera.
Hereinafter, an example of mounting the dome camera 60 as a board embedding device will be described.

  As shown in FIG. 5, the dome camera 60 includes a base portion 60a having a camera portion 60c, and a dome cover 60b that is light transmissive and detachable from the base portion 60a.

First, a power cord or signal cable (not shown) routed behind the ceiling is connected to the base portion 60a. Then, only the base portion 60a is inserted in the direction of the arrow D2 from the surface 301b side of the board 301 toward the base portion 51 of the implanter 50.
The base portion 60a is provided with a hole corresponding to the female screw 51a which is a mounting means provided in the base portion 51, and the base portion 60a is embedded by screwing the male screw 61 into the female screw 51a through this hole. Screwed to the tool 50.
Next, the dome cover 60 b is attached to the base portion 60 a fixed to the implanter 50. As a result, the dome camera 60 is mounted on the board 301.

  Although the above-described embedding tool 50 is an independent member, an embedding tool corresponding to this embedding tool may be provided in advance in the board embedding device. This will be described with reference to FIG.

FIG. 6 shows an embodiment of the board embedding device of the present invention. A dome camera 600 will be described as an example of this board embedding device.

  The dome camera 600 includes a base portion 600a provided with a camera portion 600c, a transparent dome cover 600b attached to the base portion 600b, and an embedding device according to an embodiment fixed to the base portion 600a by fixing means (for example, screws) 610. 50. The base portion 600a includes a terminal portion 600a2 for connecting a power cord and a signal cable.

As described above, at least the base portion 600a has the finger F in the direction of the arrow D3 so that the arm portion 54 can be bent with a finger or the like in the bending operation after the insertion operation into the embedding hole 302. A space forming portion 600a1 is formed corresponding to the position of each arm portion 54 to obtain a space S that can be inserted into the inner surface side of the arm portion 54 so that the arm portion 54 can be bent outward. Specifically, in this embodiment, the space forming portion 600a1 is a recess (600a1) provided on the outer peripheral surface of the base portion 600a.
FIG. 6 shows a state in which the dome cover 600b is attached, but since the dome cover 600b is not yet attached at the time of bending work, a finger can be inserted into the space S.

  With such a configuration, the dome camera 600 can be attached to the embedding hole 302 by the same operation as the embedding operation of the embedding tool 50 described above.

The embedding tool 50 of the embodiment is formed of a metal plate that is thin or soft enough to be plastically deformed by a finger.
On the other hand, when the board embedding apparatuses 60 and 600 are large or heavy, the embedding tool 50 that supports the apparatus needs to have a certain degree of rigidity.
For this reason, a thick plate thickness sufficient to obtain sufficient rigidity may be selected, and the portion that is plastically deformed may be devised so that it can be easily deformed.
The device will be specifically described.

An example of a device for facilitating the bending work of the arm portion 54 will be described with reference to FIG. Specifically, an easy-to-bend portion is provided in the connecting portion 54b.
FIG. 7A shows an example in which a slit 54 c is provided as an easily bendable portion in the connecting portion 54 b of the arm portion 54. As a result, the cross-sectional area of the portion to be bent is reduced, so that the force required for plastic deformation can be reduced.
FIG. 7B shows an example in which a recess 54d is provided as an easy-to-bend portion inside the connecting portion 54b of the arm portion 54 (on the opposite side to the paper surface).
By providing the recess 54d on the inner side, it is possible to reduce the force for performing the outward bending by plastic deformation.

As described above, the embedding tool 50 and the board embedding device 600 according to the embodiment only perform the insertion operation and the bending operation with respect to the embedding hole 302 and do not involve the screwing operation. 301 can be attached.
In addition, the work itself is simple, and the work can be completed with just a hand without using a tool. Therefore, even if the work is at a high place, the work can be easily performed in an easy posture.
Moreover, since the extension part 55 deform | transforms according to the thickness of the board 301, an embedding operation | work can be performed with high working efficiency irrespective of the thickness of a board.
The extending portion 55 of each arm portion 54 is bent independently.
Therefore, the board 301 can attach the embedding tool 50 to the embedding hole 302 even if the front surface 301b and the back surface 301a are not parallel. In addition, the front surface 301b is desired to be a flat surface, while the back surface 301a does not have to be a flat surface, and has an unevenness within the range of the thickness of the board 301 that is assumed as a range in which the extending portion 55 can be bent. May be.

  The embodiment of the present invention is not limited to the configuration and procedure described above, and it goes without saying that modifications may be made without departing from the scope of the present invention.

  As a first modification of the embedding tool 50 of the embodiment, a plurality of examples for facilitating the bending of the extending portion 55 are shown in FIG. FIG. 8 is a view showing only the arm portion 54.

FIG. 8A is an example in which a U-shaped slit 601 is provided along the extending direction of the extending portion 55.
FIG. 8B is an example in which a plurality of slits 602 are provided along the extending direction of the extending portion 55.
FIG. 8C is an example in which a plurality of openings 603 are provided in the extending direction of the extending portion 55.
FIG. 8D shows an example in which a narrow width portion 604 in which the width of the extension portion 55 is narrowed in a predetermined range in the extending direction is provided.

The slits 601 and 602 and the narrow width portion 604 make the cross-sectional area of the extending portion 55 smaller than the cross-sectional area of other portions in the predetermined range L8 in the extending direction of the extending portion 55, and in the range L8 It becomes a bending induction part for inducing bending.
In addition, the opening 603 has a cross-sectional area that is smaller than that of the other part, and serves as a bending guiding part that induces bending at the opening 603.
FIG. 8E shows an example in which the extending portion 55 is formed so that the width gradually decreases from the root toward the tip.
In the case of this example, it is easy to bend the portion that contacts the back surface 301 a of the board 301.

  In the embodiment described above, the pair of leg portions 52 has been described, but there may be three or more leg portions 52. This will be described as a second modification with reference to FIG.

FIG. 9A shows an implanter 50 </ b> A having three legs 52. The three legs 52 are preferably formed at intervals of 120 ° in the circumferential direction.
FIG. 9B shows an implanter 50 </ b> B having four leg portions 52. The four legs 52 are preferably formed at intervals of 90 ° in the circumferential direction.
Since the embedding strength with respect to the embedding hole 302 is improved as the number of the leg portions 52 is increased, the board embedding device attached to the embedding tool is preferably used when the mass is large or the size is large.

FIG. 10 shows an example in which the center of the embedding hole 302 and the center of the embedding tool 50 are more easily matched as a third modification of the embedding tool 50 of the embodiment.
FIG. 10 is a partial perspective view showing one of the leg portions 52 of the implanter 50. Each leg portion 52 has the same shape.

Each leg 52 is formed with a tongue piece 605 that protrudes outward and elastically deforms inward and outward.
The distance L10 between the maximum protruding portions of each tongue piece 605 is set to be larger than the assumed maximum inner diameter of the embedding hole 302.
Therefore, when inserting the implant 50 into the embedding hole 302, the insertion is started by bending the tongue piece 605 inward, and each tongue piece 605 further expands the inner wall of the embedding hole 302. Since the insertion proceeds while being urged, the center of the implant 50 is guided so as to coincide with the center of the embedding hole 302.

By providing the tongue piece 605, the center of the board embedding device attached to the embedding tool 50 and the center of the embedding hole 302 are well matched, and an embedding operation with high positional accuracy with respect to the board 301 is performed. Can do.
Thereby, for example, when arranging a plurality of board embedding devices on the board 301, each device can be installed with high quality without being displaced.

Of course, the tongue piece 605 described here may be provided in an implanter having three or more leg portions 52 (for example, the above-described implanters 50A and 50B).
In that case, the diameter of the circle connecting the maximum protrusions of the tongue pieces 605 may be set larger than the assumed maximum inner diameter of the embedding hole 302 instead of the maximum distance L10 between the protrusions.

In the embodiment and the modification, the example in which the base 51, the leg 52, and the flange 53 are formed of one member has been described. There may be.
At least the leg portion 52 and the arm portion 54 may be the same member.
The above-described embodiments and modifications can be freely combined and applied.

Although the iron plate has been described as the material of the embedding tool 50, it is not limited to the iron plate. Moreover, it is not restricted to a metal.
The material of the embedding tool 50 should just be a material which plastically deforms, without the arm part 54 and the extension part 55 being bent or broken at the time of the bending or bending.

50,500 Implanting tool 51 Base 52 Leg portion 52a Side end portion 53 Gutter portion 53a Outermost end portion 53b Abutting surface 54 Arm portion 54a End portion 54b Connection portion 54c Slit 54c Slit 54d Depression 55 Extension portion 55a Tip portion 60, 600 Board embedding device (dome camera)
60a, 600a Base portion 60b, 600b Dome cover 301 Board 301a Back surface 301b Front surface 302 Embedded hole 600a1 Recessed portion 600a2 Terminal portion 601, 602 Slit 603 Opening portion 604 Narrow width portion

Claims (7)

An embedding tool for a board embedding device for embedding the board embedding device in a hole provided in the board,
A base having a mounting means formed of a plate material for mounting the board embedding device;
A plurality of legs connected to an end of the base and extending to one side relative to the base;
A plurality of flanges connected to the tips of the plurality of legs and projecting outward;
An extension portion that is connected to one side end portion of each of the plurality of leg portions, extends inward from the connection portion with respect to the extending surface of the leg portion, and extends in a direction away from the base portion to the distal end portion. A plurality of arms having
An embedment device for a board embedding device, comprising:   2. The embedment device for a board embedding apparatus according to claim 1, wherein the connecting portion includes a foldable portion that facilitates bending of the arm portion with respect to the leg portion.   The embedment tool for a board embedding apparatus according to claim 2, wherein the extension portion is formed with a bending guiding portion having a partially small cross-sectional area. In a board embedding device comprising a base portion on which an electrical component or an electronic component is mounted, and an embedment tool attached to the base portion, and embedded in a hole provided in the board,
The implant is
A base formed of a plate material and attached to the base portion;
A plurality of legs connected to an end of the base and extending to one side relative to the base;
A plurality of flanges connected to the tips of the plurality of legs and projecting outward;
An extension portion that is connected to one side end portion of each of the plurality of leg portions, extends inward from the connection portion with respect to the extending surface of the leg portion, and extends in a direction away from the base portion to the distal end portion. A plurality of arms having
A board embedding device comprising:   The space forming part is provided in the site | part which opposes the said inner surface in the said base part so that predetermined | prescribed space may be formed between the inner surface of the said arm part and the said base part. Board embedding device. A base portion on which a camera is mounted; a dome portion that is light transmissive and detachable from the base portion; and an embedding tool attached to the base portion. In the dome camera used embedded,
The implant is
A base formed of a plate material and attached to the main body,
A plurality of legs connected to an end of the base and extending to one side relative to the base;
A plurality of flanges connected to the tips of the plurality of legs and projecting outward;
An extension portion that is connected to one side end portion of each of the plurality of leg portions, extends inward from the connection portion with respect to the extending surface of the leg portion, and extends in a direction away from the base portion to the distal end portion. A plurality of arms having
A dome camera characterized by comprising:   The space forming portion is provided in a portion of the base portion facing the inner surface so as to form a predetermined space between the inner surface of the arm portion and the base portion. Dome camera.

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