JP2013186278A - Camera unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a camera unit capable of fixing a camera more suitably.SOLUTION: In a camera unit 12, a first projection portion 30 of a camera main body 16 is engaged with a first wedge-shaped portion 96 formed in a first hook-shaped portion 50 of a bracket 18. The first hook-shaped portion 50 is engaged with a second wedge-shaped portion 118 formed between a left side surface 26 or right side surface 24 of the camera main body 16 and a first large diameter part 110 of the first projection portion 30.

Description

  The present invention relates to a camera unit having a camera body and a bracket that detachably supports the camera body and fixes the camera body to an object to be attached (for example, a windshield of a vehicle).

  Patent Document 1 shows that a camera case 3 in which an omnidirectional camera 1 is arranged is suspended and fixed inside a vehicle windshield 4 ([0016], FIG. 1). In the fixing here, the camera case 3 is directly fixed to the windshield 4 itself, or the camera case 3 is fixed so as to be hooked on a hook portion (button) fixed to the windshield 4 (see FIG. [0016]).

JP 2003-285687 A

  As described above, Patent Document 1 shows that the camera case 3 is directly fixed to the windshield 4 itself, or that the camera case 3 is fixed to be hooked on a hook portion (button) fixed to the windshield 4. However, there is room for improvement in the camera fixing method.

  The present invention has been made in consideration of such a problem, and an object thereof is to provide a camera unit capable of fixing the camera more suitably.

  The camera unit according to the present invention includes a camera body and a bracket that detachably supports the camera body and fixes the camera body to an attachment object, and the bracket is in contact with the attachment object. A base portion having a mounting surface; and first and second hook-like portions erected from the base portion corresponding to the positions of the left and right side surfaces of the camera body, and at least the first and second hook-like portions The first hook-shaped portion includes a first portion extending in a direction away from the base portion, and a second portion extending in a direction approaching the base portion from a tip of the first portion, and the first portion and the first portion A first opening is formed by two portions in a direction parallel to the base, and a first wedge-shaped portion is formed by the inner wall of the first portion and the inner wall of the second portion on the first opening side, and the camera The body is on the left of the camera body The first and second protrusions are formed to protrude in the left-right direction on the side surface and engage with the first and second hook-shaped parts, and the first protrusion is formed at the tip of the first protrusion. The first large diameter portion, the first small diameter portion having a length shorter than the thickness of the first flange-shaped portion, and the first large diameter portion disposed between the first large diameter portion and the first small diameter portion. At least one of a first tapered portion that gradually increases in diameter toward the first portion or a second tapered portion that is disposed between the first small diameter portion and the base portion and that gradually decreases in diameter toward the first small diameter portion; Thereby, a second wedge-shaped portion is formed between the left or right side surface of the camera body and the first large diameter portion.

  According to the present invention, since the camera body is detachable from the bracket, the camera body can be easily attached in a short time.

  Further, according to the present invention, it is easy to manufacture the bracket and manage the dimensional tolerance while suppressing the rattling of the camera body. That is, in the first hook-shaped portion of the bracket, a first wedge-shaped portion is formed by the inner wall of the first portion and the inner wall of the second portion on the first opening side. The first protrusion of the camera body enters the first wedge-shaped portion. For this reason, for example, even if there are variations in the dimensions of the first small diameter portion, the first taper portion, or the second taper portion of the first protrusion, the first protrusion is supported by the first wedge-shaped portion. A second wedge-shaped portion is formed between the left or right side surface of the camera body and the first large diameter portion. The first wedge-shaped portion enters the second wedge-shaped portion. For this reason, for example, even if the thickness of the first hook-shaped portion varies, it is supported by the second wedge-shaped portion. Therefore, the camera body is not swayed in the direction in which the first hook-like portion and the first protrusion are engaged (for example, when the housing surface of the bracket is in contact with the upper surface of the camera body). Does not occur.

  The second protrusion may include a second small diameter portion having the same diameter as the first small diameter portion. In this case, the second hook-like portion engages with the small-diameter portion of the second protrusion of the camera body, but the second protrusion includes the first large-diameter portion and the first taper portion such as the first protrusion. I don't have it. For this reason, the camera body is restricted from moving in the left-right direction by the engagement of the first protrusion and the first hook-like part, but depending on the engagement of the second protrusion and the second hook-like part, Movement is not regulated. For this reason, it is possible to give a margin to the dimensional tolerance of the first protrusion, and the manufacture of the bracket becomes easy.

  The bracket further includes third and fourth hook-like parts standing from the base corresponding to the positions of the left and right side surfaces of the camera body, and the third and fourth hook-like parts are separated from the base. A third portion extending in a direction to be extended, and a fourth portion extending from the tip of the third portion along the base, and the second opening in a direction parallel to the base by the third portion and the fourth portion. The camera body includes third and fourth protrusions that are formed to protrude in the left-right direction on the left and right side surfaces of the camera body, and that engage with the third and fourth hook-shaped parts, The projecting portion includes a second large diameter portion formed at a tip of the third projecting portion, a third small diameter portion having a length shorter than the thickness of the third hook-shaped portion, the second large diameter portion, and the A third taper part or a front part disposed between the third small diameter parts and gradually increasing in diameter toward the second large diameter part At least one of a third small diameter portion and a fourth taper portion disposed between the base portion and gradually decreasing in diameter toward the third small diameter portion, whereby the left side surface or the right side surface of the camera body A third wedge-shaped portion is formed between the second large-diameter portions, and the fourth projecting portion includes a fourth small-diameter portion that engages with the fourth flange-shaped portion and has the same diameter as the three small-diameter portions. May be.

  Thereby, manufacture of a bracket and management of a dimensional tolerance become easy, further suppressing shakiness of a camera body. That is, unlike the first opening of the first hook-shaped portion, the first wedge-shaped portion is not formed in the second opening of the third hook-shaped portion of the bracket. Similarly to the second wedge-shaped portion of the first protruding portion, the third wedge-shaped portion is formed in the third protruding portion of the camera body. For this reason, the movement of the third protrusion along the base of the bracket (the movement of the camera body in the front-rear direction) is restricted although the movement in the left-right direction and the vertical direction is restricted by engaging with the third hook-shaped part. It becomes possible. For this reason, it is possible to relatively loosen the dimensional tolerance of the distance between the first protrusion and the third protrusion, for example, while suppressing the rattling of the camera body.

  Further, unlike the first opening of the second hook-shaped portion, the first wedge-shaped portion is not formed in the second opening of the fourth hook-shaped portion of the bracket. Furthermore, unlike the third protrusion, the third wedge-shaped part is not formed in the fourth protrusion. For this reason, the fourth protrusion is engaged with the fourth hook-shaped portion to restrict the vertical movement, but the movement along the base of the bracket (the movement of the camera body in the front-rear direction) and the horizontal movement Movement is possible. For this reason, it is possible to relatively loosen the dimensional tolerance of the distance between the second protrusion and the fourth protrusion while suppressing the rattling of the camera body.

  Further, the fourth hook-like portion is engaged with the fourth small diameter portion of the fourth projecting portion of the camera body. The fourth protruding portion does not have the second large diameter portion and the third tapered portion like the third protruding portion. For this reason, the camera body is restricted from moving in the left-right direction by the engagement of the third protrusion and the third hook-shaped part, while depending on the engagement of the fourth protrusion and the fourth hook-shaped part, Movement is not regulated. Therefore, for example, it is possible to give a margin to the dimensional tolerance of the third protrusion, and the manufacture of the bracket becomes easy.

  The base includes an accommodation surface provided on the opposite side of the mounting surface and in contact with an upper surface or a lower surface of the camera body, and the accommodation surface is an elastic member that urges the camera body in a direction away from the accommodation surface. May be provided. Accordingly, for example, the first protrusion of the camera body and the first wedge-shaped portion can be brought into strong contact with the elastic member, and the first hook-shaped portion and the second wedge-shaped portion can be brought into strong contact with each other. Therefore, it is possible to further prevent the camera body from rattling.

  When a leaf spring extending in the front-rear direction of the camera body is used as the elastic member, the center portion of the leaf spring is fixed to the housing surface of the bracket, and both end portions of the leaf spring are disposed on the housing surface. It may be arranged away from. As a result, both end portions of the leaf spring urge the camera body in the direction away from the accommodation surface in both the front and rear directions. Therefore, for example, the contact between the first protrusion of the camera body and the first wedge-shaped portion and the contact between the first hook-shaped portion and the second wedge-shaped portion can be further strengthened. Therefore, it is possible to further prevent the camera body from rattling.

  The central portion of the base portion in the left-right direction of the camera body protrudes in a direction away from the camera body, contacts the attachment object at the center portion, and the left and right side portions of the base portion in the left-right direction of the camera body May be arranged closer to the camera body than the central portion. Thereby, when the lens of the camera body is provided corresponding to the central portion of the base, it is easy to secure the field of view of the camera body. In addition, when a fixing means such as a rivet is used to fix the leaf spring to the left and right sides of the base, it is possible to avoid the fixing means from hitting an attachment object. Therefore, the attachment object can be protected.

  The camera body may include a camera lens disposed corresponding to a central portion of the base, and a recess formed so as to secure a field of view range of the camera body. Thereby, it is possible to secure the strength of the camera body while securing the field of view of the camera body.

  The central portion of the base portion may be shorter in the imaging direction than the left and right side portions. This makes it possible to secure the field of view of the camera body even when the camera lens is arranged rearward in the camera body.

  According to the present invention, since the camera body is detachable from the bracket, the camera body can be easily attached in a short time. In addition, it is easy to manufacture the bracket and manage the dimensional tolerance while suppressing the rattling of the camera body.

It is a side view which shows simply the attachment state of the camera unit which concerns on one Embodiment of this invention. It is the perspective view of the said camera unit seen from the back-right side-plane direction. It is a figure which shows a mode that the camera main body of the said camera unit is attached to a bracket. It is the perspective view of the said camera main body seen from the back-left side-bottom direction. It is a top view of the said camera main body. It is the perspective view of the said bracket seen from the back-left side-bottom direction. It is a bottom view of the bracket. It is a left view of the camera unit. It is the elements on larger scale of FIG. It is a front view of the camera unit. It is the elements on larger scale of FIG. It is an enlarged front view of the engaging part of the 3rd protrusion part and the 3rd hook-shaped part of the said camera unit.

A. Embodiment 1 FIG. Explanation of overall configuration [1-1. Usage state]
FIG. 1 is a side view schematically showing a mounting state of a camera unit 12 according to an embodiment of the present invention. As shown in FIG. 1, the camera unit 12 is attached to the windshield 14 of the vehicle 10. Alternatively, the camera unit 12 may be attached to the roof 15. The camera unit 12 is fixed beside a rear-view mirror (not shown).

  Note that the camera unit 12 of the present embodiment can be used, for example, for lane detection to prevent protrusion from the lane and distance measurement with a preceding vehicle, but the purpose is not limited to this (details will be described later). ).

[1-2. Overall configuration]
FIG. 2 is a perspective view of the camera unit 12 as seen from the back surface-right surface-plane direction (X2-Y2-Z2 direction). FIG. 3 is a diagram illustrating a state in which the camera body 16 of the camera unit 12 is attached to the bracket 18. FIG. 4 is a perspective view of the camera body 16 as viewed from the back surface-left surface-bottom surface direction (X2-Y1-Z1 direction). FIG. 5 is a plan view (Z2 direction) of the camera body 16.

  FIG. 6 is a perspective view of the bracket 18 as viewed from the back surface-left surface-bottom surface direction (X2-Y1-Z1 direction). FIG. 7 is a bottom view of the bracket 18 (Z1 direction). FIG. 8 is a left side view (Y1 direction) of the camera unit 12, and FIG. 9 is a partially enlarged view (Y1 direction) of FIG. FIG. 10 is a front view (X1 direction) of the camera unit 12, and FIG. 11 is a partially enlarged view (X1 direction) of FIG. FIG. 12 is an enlarged front view (X1 direction) of the engaging portion of the third protrusion 34 and the third flange 54 of the camera unit 12.

  As shown in FIGS. 1 to 3, the camera unit 12 includes a camera body 16 (camera case) and a bracket 18. The bracket 18 removably supports the camera body 16 and fixes the camera body 16 to the vehicle 10 (windshield 14).

  The camera body 16 is based on a rectangular parallelepiped shape that becomes thinner toward the front (X1 direction in FIGS. 1 and 2, etc.) (see FIG. 1), and a camera lens 22 is disposed on the upper surface 20 thereof. A first protrusion 30 and a third protrusion 34 are formed on the right side 24 of the camera body 16, and a second protrusion 32 and a fourth protrusion 36 are formed on the left side 26 of the camera body 16. Has been.

  As shown in FIGS. 3 and 6, the bracket 18 includes an upper (Z1 direction) central base 40, a right side (Y1 direction) right side 42, and a left side (Y2 direction) left side 44. A first hook-like portion 50 and a third hook-like portion 54 are formed on the right side surface 42, and a second hook-like portion 52 and a fourth hook-like portion 56 are formed on the left side surface 44.

  As shown in FIGS. 2 and 3, the camera body 16 is inserted inside the bracket 18, and the first to fourth protrusions 30, 32, 34, 36 of the camera body 16 are connected to the first to fourth of the bracket 18. The camera body 16 is fixed to the bracket 18 by engaging with the hooks 50, 52, 54, 56.

[1-3. Bracket 18]
As described above, the bracket 18 has the upper central base 40, the right side surface 42 protruding from the right end of the central base 40, and the left side surface 44 protruding from the left end of the central base 40. The bracket 18 is manufactured, for example, by pressing a metal such as iron. The outer surface 66 of the central base 40 is used as an attachment surface attached to the vehicle 10 (windshield 14) (see FIG. 1). The inner surface 68 of the central base 40 functions as a receiving surface that contacts the upper surface 20 of the camera body 16.

(1-3-1. Central base 40)
The central base 40 includes a central portion 60 located at the center in the left-right direction (Y1, Y2 direction) of the central base 40, a right side portion 62 located on the right side of the central portion 60, and a left side located on the left side of the central portion 60. Part 64. The right side portion 62 and the left side portion 64 are line symmetrical with respect to the central portion 60 and are longer than the central portion 60 in the front-rear direction (X1, X2 direction) (particularly in the forward direction). This is because the length of the central portion 60 is shortened in order to secure the visual field area of the camera body 16.

  As shown in FIG. 6 and the like, leaf springs 70 a and 70 b are fixed to the right side portion 62 and the left side portion 64 via rivets 72. The leaf springs 70a and 70b urge the camera body 16 downward (Z2 direction) as indicated by an arrow S in FIG.

  The leaf springs 70a and 70b extend in the front-rear direction (X1 and X2 directions), and a central portion 74 of the leaf springs 70a and 70b is fixed to the right side portion 62 and the left side portion 64 of the camera body 16, and the leaf springs 70a, 70b Both end portions 76 a and 76 b of 70 b are arranged apart from the right side portion 62 and the left side portion 64.

(1-3-2. Right side surface 42 and left side surface 44)
(1-3-2-1. Overall configuration of the right side surface 42 and the left side surface 44)
As shown in FIG. 3 and the like, the right side surface 42 of the bracket 18 has a right base portion 80 in addition to the first hook-shaped portion 50 and the third hook-shaped portion 54. The right base portion 80 is disposed between the first hook-like portion 50 and the third hook-like portion 54 and the central base portion 40. In other words, the first hook-like portion 50 and the third hook-like portion 54 of the present embodiment protrude directly from the right base portion 80.

  Similarly, the left side surface 44 has a left base portion 82 in addition to the second hook-shaped portion 52 and the fourth hook-shaped portion 56. The left base 82 is disposed between the central base 40 and the second hook-like part 52 and the fourth hook-like part 56. In other words, the second hook-like part 52 and the fourth hook-like part 56 of the present embodiment directly protrude from the left base part 82.

  As shown in FIG. 6 and the like, in the present embodiment, the first hook-like portion 50 of the right side surface 42 and the second hook-like portion 52 of the left side surface 44 have a line-symmetric shape, and the third hook-like shape of the right side surface 42. The portion 54 and the fourth hook-like portion 56 of the left side surface 44 have a line-symmetric shape.

  As apparent from the state in which the camera body 16 and the bracket 18 are combined in FIG. 2 and the like, the distance D1 (FIG. 7) between the inner wall of the right side portion 62 and the inner wall of the left side portion 64 is the right side surface of the camera body 16. It is longer than the distance D2 (FIG. 5) between 42 and the left side surface 44.

(1-3-2-2. First hook-like part 50 and second hook-like part 52)
As shown in FIGS. 6, 8, 9, and the like, the first hook-like portion 50 and the second hook-like portion 52 of the bracket 18 are formed of a first portion 90 extending in a direction away from the central base portion 40, and a first portion. And a second portion 92 extending in a direction approaching the central base 40 from the tip of 90. A first opening 94 is formed by the first part 90 and the second part 92 in a direction parallel to the central base 40.

  A first wedge portion 96 in a side view is formed by the inner wall of the first portion 90 and the inner wall of the second portion 92 on the first opening 94 side. The “wedge shape” here means a shape that tapers as it goes deeper. As shown in FIGS. 2 and 9, the first projecting portion 30 and the second projecting portion 32 of the camera body 16 are engaged with the first wedge-shaped portion 96 of the first and second hook-shaped portions 50 and 52. Match.

(1-3-2-2-3. Third hook-like part 54 and fourth hook-like part 56)
As shown in FIG. 6, FIG. 8, etc., the third hook-like part 54 and the fourth hook-like part 56 are composed of a third part 100 extending in a direction away from the central base 40, and a central base from the tip of the third part 100. 40 and a fourth portion 102 extending along (in parallel with the central base 40). A second opening 104 is formed by the third part 100 and the fourth part 102 in a direction parallel to the central base 40. Unlike the first hook-like part 50 and the second hook-like part 52, the first wedge-like part 96 is not formed in the third hook-like part 54 and the fourth hook-like part 56. As shown in FIGS. 2 and 8, the third protrusion 34 and the fourth protrusion 36 of the camera body 16 are disposed in the second opening 104 of the third hook-like part 54 and the fourth hook-like part 56. Is done.

[1-4. Camera body 16]
(1-4-1. Overall configuration)
As described above, the camera body 16 is based on a rectangular parallelepiped shape that becomes thinner toward the front (X1 direction) (see FIG. 1 and the like), and the camera lens 22 is disposed in the recess 23 on the upper surface 20 thereof. Yes. A first protrusion 30 and a third protrusion 34 are formed on the right side 24 of the camera body 16, and a second protrusion 32 and a fourth protrusion 36 are formed on the left side 26 of the camera body 16. Has been.

(1-4-2. First protrusion 30)
As shown in FIG. 11 etc., the 1st protrusion part 30 is the 1st large diameter part 110 formed in the front-end | tip of the 1st protrusion part 30, and the 1st small diameter of length shorter than the thickness of the 1st hook-shaped part 50. As shown in FIG. Portion 112, a first tapered portion 114 having a truncated cone shape that is disposed between the first large diameter portion 110 and the first small diameter portion 112 and gradually increases in diameter toward the first large diameter portion 110, and the first small diameter And a truncated cone-shaped second tapered portion 116 that is disposed between the portion 112 and the right side surface 24 (central base portion 40) and gradually decreases in diameter toward the first small-diameter portion 112. A second wedge-shaped portion 118 in a front view is formed by the first small diameter portion 112, the first tapered portion 114, and the second tapered portion 116.

(1-4-3. Second protrusion 32)
As shown in FIG. 5 and the like, the second projecting portion 32 includes a second small diameter portion 120 that engages with the second hook-shaped portion 52 and has the same diameter as the first small diameter portion 112. The 2nd protrusion part 32 does not have parts like the 1st large diameter part 110 in the 1st protrusion part 30, the 1st taper part 114, and the 2nd taper part 116, but is a column shape.

(1-4-4. Third protrusion 34)
The third protrusion 34 has the same configuration as the first protrusion 30. That is, as shown in FIG. 12 and the like, the third projecting portion 34 has a length shorter than the thickness of the second large diameter portion 130 formed at the tip of the third projecting portion 34 and the third hook-shaped portion 54. A third small-diameter portion 132, a third tapered portion 134 having a truncated cone shape that is disposed between the second large-diameter portion 130 and the third small-diameter portion 132 and gradually increases in diameter toward the second large-diameter portion 130; It has a frustoconical fourth taper part 136 which is disposed between the third small diameter part 132 and the right side surface 24 (center base part 40) and gradually decreases in diameter toward the third small diameter part 132. A third wedge-shaped portion 138 in the front view is formed by the third small diameter portion 132, the third tapered portion 134, and the fourth tapered portion 136.

(1-4-5. Fourth protrusion 36)
The fourth protrusion 36 has the same configuration as the second protrusion 32. That is, as shown in FIG. 5 and the like, the fourth projecting portion 36 includes a fourth small diameter portion 140 that is engaged with the fourth hook-shaped portion 56 and has the same diameter as the third small diameter portion 132. The fourth projecting portion 36 does not have such portions as the second large diameter portion 130, the third tapered portion 134, and the fourth tapered portion 136 in the third projecting portion 34, and has a columnar shape.

(1-4-6. Camera lens 22 and recess 23)
The camera lens 22 is disposed in a recess 23 formed on the upper surface 20 of the camera body 16 based on a triangular pyramid shape. The concave portion 23 is formed so as to ensure the visual field range of the camera body 16. Thereby, it is possible to secure the strength of the camera body 16 while securing the field of view of the camera body 16.

2. Next, the operation and effect of each part will be described.

[2-1. First projecting portion 30 and first hook-shaped portion 50]
In the first hook-shaped portion 50 of the bracket 18, a first wedge-shaped portion 96 is formed by the inner wall of the first portion 90 and the inner wall of the second portion 92 on the first opening 94 side. And the 1st protrusion part 30 of the camera main body 16 enters into this 1st wedge-shaped part 96 (refer FIG.2, FIG.8, FIG.9 etc.). For this reason, for example, even if there is some variation in the dimensions of the first small-diameter portion 112, the first taper portion 114, or the second taper portion 116 of the first protrusion 30, the first protrusion 30 has the first wedge shape. Supported by part 96.

  Further, as shown in FIG. 11 and the like, a second wedge-shaped portion 118 is formed between the right side surface 24 of the camera body 16 and the first large diameter portion 110. The first wedge-shaped portion 50 enters the second wedge-shaped portion 118. For this reason, for example, even if the thickness of the first hook-shaped portion 50 and the length of the first small-diameter portion 112 vary, the first hook-shaped portion 50 is supported by the second wedge-shaped portion 118.

  Therefore, rattling of the camera body 16 does not occur in the direction (X1, X2, and Z2 directions) in which the first hook-shaped portion 50 and the first protrusion 30 are engaged.

[2-2. Second protrusion 32 and second hook-like portion 52]
The second hook-like portion 52 engages with the second small diameter portion 120 of the second protrusion 32 of the camera body 16. The second protruding portion 32 does not have the first large diameter portion 110 and the first tapered portion 114 like the first protruding portion 30. For this reason, the movement of the left-right direction (Y1, Y2 direction) is not controlled by engagement of the 2nd protrusion part 32 and the 2nd hook-shaped part 52. FIG. Therefore, it is possible to provide a margin for the dimensional tolerance of the first protrusion 30 and the bracket 18 can be easily manufactured.

[2-3. Third protrusion 34 and third hook 54]
Unlike the first opening 94 of the first hook 50, the first wedge 96 is not formed in the second opening 104 of the third hook 54 of the bracket 18. Similarly to the second wedge portion 118 of the first protrusion 30, the third wedge portion 138 is formed in the third protrusion 34 of the camera body 16 (FIG. 12). For this reason, although the 3rd protrusion 34 engages with the 3rd bowl-shaped part 54, although the motion of the left-right direction (Y1, Y2 direction) and a downward direction (Z2 direction) is controlled, the center base part of the bracket 18 Movement along 40 (movement of X1, X2) is possible. Therefore, for example, the dimensional tolerance of the distance between the first protrusion 30 and the third protrusion 34 can be relatively relaxed while suppressing the rattling of the camera body 16.

[2-4. Fourth protrusion 36 and fourth hook 56]
Unlike the first opening 94 of the second hook 52, the first wedge 96 is not formed in the second opening 104 of the fourth hook 56 of the bracket 18. Further, unlike the third projecting portion 34, the third wedge-shaped portion 138 is not formed in the fourth projecting portion 36 of the camera body 16. Therefore, although the fourth protrusion 36 is engaged with the fourth hook-like portion 56 to restrict the movement in the vertical direction (Z1 and Z2 directions), the movement along the central base 40 of the bracket 18 (X1) , Movement in the X2 direction) and movement in the left-right direction (Y1, Y2 direction) are possible. For this reason, for example, it is possible to relatively loosen the dimensional tolerance of the distance between the second projecting portion 32 and the fourth projecting portion 36 while suppressing the rattling of the camera body 16.

  Further, the fourth hook-like portion 56 engages with the fourth small diameter portion 140 of the fourth protrusion 36 of the camera body 16. The fourth protruding portion 36 does not have the second large diameter portion 130 and the third tapered portion 134 like the third protruding portion 34. For this reason, the movement of the left-right direction (Y1, Y2 direction) is not controlled by engagement of the 4th protrusion part 36 and the 4th hook-shaped part 56. FIG. Therefore, for example, it is possible to provide a margin for the dimensional tolerance of the third protrusion 34, and the manufacture of the bracket 18 is facilitated.

[2-5. Leaf springs 70a, 70b]
The leaf springs 70a and 70b urge the camera body 16 in the direction away from the central base 40 (Z2 direction) at the right side portion 62 and the left side portion 64 of the bracket 18 (see FIG. 10). The leaf springs 70a and 70b extend in the front-rear direction (X1 and X2 directions), and the central portion 74 of the leaf springs 70a and 70b is fixed to the right side portion 62 and the left side portion 64 of the camera body 16, and the leaf springs. Both end portions 76a and 76b of 70a and 70b are spaced apart from the right side portion 62 and the left side portion 64. Thereby, both end portions 76a and 76b of the leaf springs 70a and 70b urge the camera body 16 in the direction away from the right side portion 62 and the left side portion 64 (Z2 direction) both in the front and rear direction.

  Thus, for example, the first protrusion 30 and the first wedge-shaped portion 96 of the camera body 16 can be brought into strong contact, and the first hook-shaped portion 50 and the second wedge-shaped portion 118 can be brought into strong contact. Similarly, the second protrusion 32 of the camera body 16 and the first wedge-shaped portion 96 can be brought into strong contact. Furthermore, the third hook-like portion 54 and the third wedge-like portion 138 can be brought into strong contact. Therefore, it is possible to further prevent the camera body 16 from rattling.

[2-6. Central base 40 of bracket 18]
A central portion 60 of the central base 40 in the left-right direction (Y1, Y2 direction) of the camera body 16 protrudes in a direction away from the camera body 16 (Z1 direction), and contacts the vehicle 10 (the windshield 14) at the central portion 60. The right side portion 62 and the left side portion 64 of the central base 40 in the left-right direction (Y1, Y2 direction) of the camera body 16 are disposed closer to the camera body 16 than the center portion 60 (see FIG. 10).

  In the present embodiment, since the camera lens 22 of the camera body 16 is provided corresponding to the center portion 60 of the center base 40, according to the above configuration, it is easy to secure the field of view of the camera body 16. In the present embodiment, the rivets 72 are used to fix the leaf springs 70a and 70b to the right side 62 and the left side 64 of the central base 40. However, the rivet 72 hits the vehicle 10 (the windshield 14). It can be avoided. Therefore, it becomes easy to protect the vehicle 10 (windshield 14).

B. Modifications It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that various configurations can be adopted based on the contents described in this specification. For example, the following configuration can be adopted.

1. Application Target In the above-described embodiment, the configuration in which the camera unit 12 is applied to the vehicle 10 has been described. However, the configuration may be applied to another target as long as the camera body 16 is attached. For example, the present invention may be applied to a manufacturing apparatus that uses a camera as an image sensor for defective product determination, dimension measurement, and the like. Alternatively, the present invention can be applied to an apparatus or system such as a surveillance camera system for the purpose of status confirmation and crime prevention.

  Alternatively, the present invention can be applied not only to the camera unit 12 but also to other devices that are detachably attached to the bracket 18 in consideration of prevention of rattling at the time of attachment, dimensional tolerances, and the like.

2. Camera body In the above embodiment, the shape of the camera body 16 is based on a rectangular parallelepiped shape that becomes thinner toward the front (X1 direction), but the first to fourth protrusions 30, 32, 34, 36 and the first From the viewpoint of being detachable with the first to fourth hook-shaped portions 50, 52, 54, and 56, the present invention is not limited to this. For example, a cylindrical shape can be used as a base tone.

3. Bracket 18
In the said embodiment, although the bracket 18 was fixed to the windshield 14 with the adhesive agent, if the bracket 18 can be attached to an attachment target object, it will not restrict to this. For example, you may fix to the roof 15 of the vehicle 10 with a volt | bolt.

  In the above embodiment, the bracket 18 supports the camera body 16 from the upper surface 20, the right side surface 24, and the left side surface 26 side of the camera body 16. In other words, the camera body 16 is supported from above the camera body 16, but the posture in which the bracket 18 supports the camera body 16 can be changed as appropriate according to the application. For example, a configuration in which the bracket 18 is positioned below the camera body 16 is also possible.

4). 1st-4th protrusion part 30,32,34,36 and 1st-4th bowl-shaped part 50,52,54,56
[4-1. Common subject matter]
In the said embodiment, the 1st protrusion part 30, the 2nd protrusion part 32, the 1st collar part 50, and the 2nd collar part 52 are made into the back side (X2 direction), the 3rd protrusion part 34, the 4th protrusion part 36, Although the third hook-like part 54 and the fourth hook-like part 56 are arranged on the front side (X1 direction), the front and rear may be reversed.

  In the above embodiment, the first protrusion 30, the third protrusion 34, the first flange 50, and the third flange 54 are on the right (Y1 direction), the second protrusion 32, the fourth protrusion 36, Although the second hook-like part 52 and the fourth hook-like part 56 are arranged on the left side (Y2 direction), the left and right sides may be reversed.

  In the said embodiment, the 1st protrusion part 30 and the 2nd protrusion part 32 are arrange | positioned symmetrically in the left-right direction (Y1, Y2 direction), and the 1st hook-shaped part 50 and the 2nd hook-shaped part 52 are also arrange | positioned according to this. However, it is also possible to dispose one of them in the front-rear direction (X1, X2 direction). The same applies to the third protrusion 34, the fourth protrusion 36, the third hook-like part 54, and the fourth hook-like part 56.

  In the above embodiment, four protrusions (first to fourth protrusions 30, 32, 34, 36) and four hook-shaped parts (first to fourth hook-shaped parts 50, 52, 54, 56) are combined. However, if attention is paid to individual actions and effects, the use is not necessarily limited to this combination. For example, the structure using only the 1st protrusion part 30, the 2nd protrusion part 32, the 1st collar part 50, and the 2nd collar part 52 is also possible. In this case, for example, the camera body 16 can be prevented from rotating with respect to the bracket 18 by forming the first protrusion 30 and the second protrusion 32 long in the front-rear direction (X1, X2 direction). . Alternatively, the first projecting portion 30 can be provided on both the right side portion 62 and the left side portion 64.

[4-2. First to fourth protrusions 30, 32, 34, 36]
In the above-described embodiment, the two taper portions (the first taper portion 114 and the second taper portion 116) are provided on the first projecting portion 30, but only one of them may be provided. For example, when only the first tapered portion 114 is provided, the second wedge-shaped portion 118 can be formed by the first tapered portion 114 and the right side surface 24. Alternatively, when only the second tapered portion 116 is provided, the second wedge-shaped portion 118 can be formed by the second tapered portion 116 and the first large diameter portion 110.

  Similarly, although the two taper portions (the third taper portion 134 and the fourth taper portion 136) are provided on the third projecting portion 34, it is possible to provide only one of them. For example, when only the third tapered portion 134 is provided, the third wedge-shaped portion 138 can be formed by the third tapered portion 134 and the right side surface 24. Alternatively, when only the fourth taper portion 136 is provided, the third wedge-shaped portion 138 can be formed by the fourth taper portion 136 and the second large diameter portion 130. Alternatively, when attention is paid to the action and effect of the first protrusion 30, a configuration in which the third taper part 134 and the fourth taper part 136 are not provided in the third protrusion 34 and the third wedge-shaped part 138 is not formed is also possible. .

  In the said embodiment, although all the 1st-4th taper parts 114, 116, 134, 136 were made into the truncated cone shape, if it can form a wedge-shaped site | part, it will not restrict to this. For example, it may be a pyramid shape.

[4-3. First to fourth bowl-shaped parts 50, 52, 54, 56]
In the above embodiment, the right base 80 is provided in addition to the first hook-shaped portion 50 and the third hook-shaped portion 54, but the first hook-shaped portion 50 and the third hook-shaped portion 54 are directly projected from the central base 40. Configuration is also possible. Similarly, the left base portion 82 is provided in addition to the second hook-like portion 52 and the fourth hook-like portion 56, but a configuration in which the second hook-like portion 52 and the fourth hook-like portion 56 protrude directly from the central base portion 40 is also possible. Is possible.

  In the above-described embodiment, the first wedge-shaped portion 96 is formed on both the first hook-shaped portion 50 and the second hook-shaped portion 52. However, the first wedge-shaped portion 96 is formed on only one of the two, and the other is formed on the other. A configuration in which the first wedge-shaped portion 96 is not formed (for example, a configuration in which the other wedge-shaped portion 54 or the fourth hook-shaped portion 56 has the same shape) is also possible.

5. Leaf springs 70a, 70b
In the above embodiment, the camera body 16 is biased downward (Z2 direction) using the leaf springs 70a and 70b. However, from the viewpoint of biasing the camera body 16 downward, other elastic members ( For example, a coil spring) may be used. Alternatively, if attention is paid to actions and effects other than the leaf springs 70a and 70b, a configuration in which the leaf springs 70a and 70b are not provided is also possible.

DESCRIPTION OF SYMBOLS 10 ... Vehicle 12 ... Camera unit 14 ... Windshield (attachment object) 16 ... Camera body 18 ... Bracket 22 ... Camera lens 23 ... Recessed part of camera body 24 ... Right side surface 26 of camera body ... Left side surface of camera body 30 ... First 1 protrusion 32 ... 2nd protrusion 34 ... 3rd protrusion 36 ... 4th protrusion 40 ... Central base part (base part) of a bracket
42 ... right side surface of bracket 44 ... left side surface 50 of bracket ... first flange-shaped portion 52 ... second flange-shaped portion 54 ... third flange-shaped portion 56 ... fourth flange-shaped portion 60 ... central portion of central base 62 ... center Right side portion 64 of the base portion ... Left side portion of the central base portion 66 ... Outer surface (mounting surface) of the central base portion
68 ... inner surface (accommodating surface) of central base 70a, 70b ... leaf spring (elastic member)
72 ... Rivet 74 ... Central part 76a, 76b of leaf spring ... End of leaf spring 90 ... First part 92 ... Second part 94 ... First opening 96 ... First wedge-shaped part 100 ... Third part 102 ... First 4 part 104 ... 2nd opening part 110 ... 1st large diameter part 112 ... 1st small diameter part 114 ... 1st taper part 116 ... 2nd taper part 118 ... 2nd wedge-shaped part 120 ... 2nd small diameter part 130 ... 2nd Large diameter part 132 ... 3rd small diameter part 134 ... 3rd taper part 136 ... 4th taper part 138 ... 3rd wedge-shaped part 140 ... 4th small diameter part

Claims (8)

A camera unit having a camera body and a bracket for detachably supporting the camera body and fixing the camera body to an attachment object;
The bracket is
A base having a mounting surface in contact with the mounting object;
A first and a second hook-like portion standing from the base corresponding to the positions of the left and right side surfaces of the camera body,
At least the first hook-shaped portion of the first and second hook-shaped portions is
A first portion extending in a direction away from the base,
A second part extending from the tip of the first part in a direction approaching the base, and
A first opening is formed in a direction parallel to the base by the first part and the second part,
A first wedge-shaped part is formed by the inner wall of the first part and the inner wall of the second part on the first opening side,
The camera body includes first and second protrusions that are formed to protrude in the left-right direction on the left and right side surfaces of the camera body, and engage with the first and second hook-shaped parts,
The first protrusion is
A first large diameter portion formed at a tip of the first protrusion,
A first small diameter portion having a length shorter than the thickness of the first hook-shaped portion;
Arranged between the first large-diameter portion and the first small-diameter portion and disposed between the first tapered portion or the first small-diameter portion and the base portion, which gradually increases in diameter toward the first large-diameter portion. At least one of a second taper portion that gradually decreases in diameter toward the first small diameter portion, and thereby a second gap between the left side surface or the right side surface of the camera body and the first large diameter portion. A camera unit characterized in that a wedge-shaped part is formed. The camera unit according to claim 1,
The second projecting portion includes a second small diameter portion that engages with the second flange-shaped portion and has the same diameter as the first small diameter portion. The camera unit according to claim 1 or 2,
The bracket further includes third and fourth hook-shaped portions standing from the base corresponding to the positions of the left and right side surfaces of the camera body,
The third and fourth hook-shaped portions are
A third part extending in a direction away from the base,
A fourth part extending along the base from the tip of the third part,
A second opening is formed in the direction parallel to the base by the third part and the fourth part,
The camera body includes third and fourth protrusions that are formed to protrude in the left-right direction on the left and right side surfaces of the camera body, and engage with the third and fourth hook-shaped parts,
The third protrusion is
A second large diameter portion formed at the tip of the third protrusion,
A third small diameter portion having a length shorter than the thickness of the third bowl-shaped portion;
A third taper portion disposed between the second large diameter portion and the third small diameter portion and gradually increasing in diameter toward the second large diameter portion, or disposed between the third small diameter portion and the base portion. And at least one of a fourth taper portion that gradually decreases in diameter toward the small diameter portion, thereby forming a third wedge shape between the left or right side surface of the camera body and the second large diameter portion. Part is formed,
The fourth projecting portion includes a fourth small diameter portion that engages with the fourth flange-shaped portion and has the same diameter as the three small diameter portions. The camera unit according to any one of claims 1 to 3,
The base includes a receiving surface that is provided on the opposite side of the mounting surface and contacts an upper surface or a lower surface of the camera body,
An elastic member that urges the camera body in a direction away from the accommodation surface is provided on the accommodation surface. The camera unit according to claim 4, wherein
The elastic member is a leaf spring extending in the front-rear direction of the camera body,
The central portion of the leaf spring is fixed to the housing surface of the bracket,
The camera unit, wherein both ends of the leaf spring are spaced apart from the receiving surface. The camera unit according to any one of claims 1 to 5,
The central part of the base part in the left-right direction of the camera body protrudes in a direction away from the camera body, and comes into contact with the attachment object at the center part,
The left and right sides of the base in the left-right direction of the camera body are arranged closer to the camera body than the center part. In the camera unit according to any one of claims 1 to 6,
The camera body is
A camera lens disposed corresponding to the center of the base;
A camera unit, comprising: a recess formed so as to ensure a visual field range of the camera body. The camera unit according to claim 7, which is dependent on claim 6 or claim 6.
The camera unit, wherein a central portion of the base portion is shorter in an imaging direction than the left and right side portions.

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