JPH09202181A - Monitoring camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a monitoring camera which dispenses with the switching operation of the service position with the storage position, prevents the breakage against an obstacle, and fix the view range immediately before the obstacle rearward of a vehicle body. SOLUTION: A base bracket 11 is fixed to a vehicle body, a supporting shaft 12 is rotatably pierced through the base bracket 11, a movable bracket 13 is fixed to the supporting shaft 12 in an inclined manner to the base bracket 11, a camera body 14 is fixed to the movable bracket 13, one end 15a of a spring member 15 is supported by the base bracket 11 through a rotary shaft 16, and the other end 15b of the spring member 15 is supported by the supporting shaft 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surveillance camera, for example, a vehicle-mounted surveillance camera which is mounted on the upper rear portion of a vehicle body such as a truck and monitors an obstacle behind the vehicle body by a monitor provided in the driver's seat. .

[0002]

2. Description of the Related Art Conventionally, particularly for large vehicles such as trucks, a camera body for securing a view behind the vehicle body by monitoring obstacles behind the vehicle body with a monitor provided in a driver's seat is a bracket. A surveillance camera mounted on the upper rear part of the vehicle body is known.

Further, the camera body used for such a surveillance camera projects from the upper wall portion of the vehicle body and also from the rear wall portion of the vehicle body for monitoring the vehicle body leaning with the view direction obliquely downward. It is installed in a protruding state.

It should be noted that the camera body is made to have a variable angle with respect to the bracket in order to switch the visual field direction between the vicinity of the vehicle body and the distant portion of the vehicle body, or the motor or the like is driven by a remote switching operation such as a switch from the driver's seat. It is also known to switch a camera body, a bracket and the like between a use position and a storage position.

On the other hand, when transporting foodstuffs, it is not preferable for hygiene that insects or the like enter between the building and the vehicle body during carry-out / carry-in, so that as shown in FIGS. The dog shelter 2 made of rubber or the like is provided in the housing, and the dog shelter 2 is brought into contact with the container 4 of the truck 3 to keep the space between the building 1 and the truck 3 clean.

In FIG. 7B, 2a is an opening provided in the dog shelter 2 for communicating the inside of the building 1 with the inside of the container 4, and 2b, 2b ... Are the openings 2a.
It is a curtain made of a rubber-like rubber or polyethylene that closes off.

[0007]

By the way, in such a surveillance camera, since it is projected to the rear wall of the vehicle body as described above, for example, only the camera body is variable. However, if the camera body, bracket, or the like hits the dog shelter 2, the surveillance camera may be damaged, and in order to avoid this, there is a gap between the dog shelter 2 and the container 4.

Further, when the camera body, the bracket and the like are switched between the use position and the storage position, if the relative positions of the dog shelter 2 and the container 4 are displaced in the vehicle width direction, a gap is created between them. It is preferable to move the track 1 backward while confirming the relative position by the image sent from the camera body.

However, in order to prevent the camera body, the bracket, etc. from hitting the dog shelter 2, considering the time for switching the camera body, the bracket, etc. from the use position to the storage position, the dog shelter 2 should be stored from a relatively distant position. It has to be started and cannot fully play the role of the surveillance camera. Further, it is necessary to return the storage position to the use position, and the switching operation between them is troublesome.

The present invention has been made in view of the above circumstances, and it is possible to prevent damage to an obstacle while eliminating the need for switching between the use position and the storage position, and yet to prevent damage to the vehicle body. An object of the present invention is to provide a surveillance camera capable of fixing a visual field range up to just before an obstacle behind.

[0011]

In order to achieve the above object, the invention according to claim 1 includes a base bracket fixed to a vehicle body, a support shaft rotatably passing through the base bracket, and the base bracket. In contrast, a movable bracket fixed to the support shaft in an inclined state, a camera body fixed to the movable bracket, and a spring member having one end supported by the base bracket and the other end supported by the support shaft. The point is to have it.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of a surveillance camera of the present invention is applied to a truck as a vehicle body and described with reference to the drawings.

5A and 5B, the surveillance camera 10 includes a base bracket 11, a support shaft 12, a movable bracket 13, a camera body 14, and a spring member 15.
The rotary shaft 16 is provided.

The base bracket 11 is shown in FIG.
As shown in (B), it has a U-shaped cross section that opens upward and is fixed to the upper surface 4 a of the container 4. Further, one of the standing walls 11a of the base bracket 11 is formed with a perfect circular through hole 11b through which the support shaft 12 penetrates, and the other standing wall 11c of the base bracket 11 has a perfect circular shape through which the support shaft 12 penetrates. The through hole 11d and the through hole 11e having a perfect circle through which the rotary shaft 16 penetrates are formed.

The support shaft 12 has a head portion 12a having a diameter larger than that of the through hole 11b, and the through hole 11 protruding from the head portion 12a.
b and 11d, and a substantially cylindrical shaft portion 12b, and FIG.
As shown in (A), a slit 12c opened at the tip of the shaft portion 12b, a fitting groove 12d formed in the peripheral surface near the tip of the shaft portion 12b, and a chamfered portion 12e formed vertically are formed. Has been done.

The movable bracket 13 has a U-shaped cross section that opens downward, and one wall portion 1 facing each other.
A through hole 13b through which the shaft portion 12b penetrates is formed in 3a. Further, the other opposite wall portion 13c of the movable bracket 13 has a through hole 13d (see FIG. 2) through which the tip of the shaft portion 12b penetrates while being engaged with the chamfered portion 12e of the shaft portion 12b.
(See (A)) and an arc-shaped angle adjusting groove 13e are formed.

Both ends of the camera body 14 are attached to the movable bracket 13 via bolts 17, 17.
By engaging one of the bolts 17 with the angle adjusting groove 13e, the angle can be adjusted with respect to the movable bracket 13.

The spring member 15 has both ends 15a, 15
It is formed into a bendable flat bar shape in which the bent portions 15c and 15d are formed in b, and due to its rigidity, the movable bracket 13 is always maintained in a use state in which it is inclined at a predetermined angle,
When a load is applied to the movable bracket 13, the rotary shaft 1
The movable bracket 13 bends in conjunction with the rotation of the movable bracket 13 about the axis 6, and when the load applied to the movable bracket 13 is released, the rigidity causes the movable bracket 13 to return.

The rotary shaft 16 is, as shown in FIG.
A head 16a having a diameter larger than that of the through hole 11e of the standing wall 11c.
A substantially cylindrical shaft portion 16b protruding from the head portion 16a and penetrating the through hole 11e, a slit 16c opening to the tip of the shaft portion 16b, and a fitting formed on the peripheral surface of the shaft portion 16b near the tip. The groove 16d is provided.

In the above structure, the surveillance camera 10 is assembled by temporarily mounting the camera body 14 on the movable bracket 13 via the bolts 17 and 17, and then through holes 11b and 11d.
The through holes 13b and 13d are aligned so as to be coaxial with each other, and in this state, the support shaft 12 is attached to the through holes 11b and 11d.
d, 13b, 13d are penetrated.

At this time, the support shaft 12 has the through holes 11b, 1
It is in a free state for 1d and 13b, and the through hole 1
For 3d, since the through hole 13d is formed in a shape that engages with the chamfered portions 12e, 12e, the support shaft 12
The support bracket 13 is integrally rotated with respect to the rotation.

Next, after the rotary shaft 16 is passed through the through hole 11e, as shown in FIG. 2B, one end 15a of the spring member 15 is inserted into the slit 16c, and in this state, it is inserted into the fitting groove 16d. By fitting the C ring 18, the rotation shaft 16 is prevented from coming off from the standing wall 11c, and the one end 15a is prevented from coming off from the slit 16c of the spring member 15 in the foremost direction. The spring member 15
The stopper for the slit 16c in the longitudinal direction is
The bent portion 15c is formed at the end of 5a.

Further, as shown in FIG. 3B, the other end 15b of the spring member 15 is inserted into the slit 12c,
In this state, by fitting the C ring 19 in the fitting groove 12d, the shaft member 12 is prevented from coming off the standing wall 11c,
And the slit 12c of the spring member 15 in the front direction
The other end 15b is prevented from coming off. The spring member 15 is prevented from coming off from the slit 12c in the longitudinal direction by a bent portion 15d formed at the end of the other end 15b.

At this time, the support bracket 13 is inclined horizontally toward the upper rear part of the vehicle body protruding from the upper surface 4a and the rear surface 4b because the spring member 15 becomes horizontal due to the rigidity of the spring member 15. The camera body 14 is in the use position.

Incidentally, the fine adjustment in the visual field direction of the camera body 14 is performed after this state is brought about by the bolt 17 and the angle adjusting groove 13.
This is performed by adjusting the positional relationship with e, and when the fine adjustment is completed, the camera body 14 is fixed to the support bracket 13.

On the other hand, the truck 3 is retracted to move the container 4
As in the case where the dog shelter 2 and the dog shelter 2 are closely attached,
When there is an obstacle approaching the rear wall 4b of the container 4, as shown in FIG. 4 (A), the support bracket 13 is moved by the approach of the obstacle (the dog shelter 2 in this case) accompanying the backward movement of the truck 3. Upon contact with 2, the shafts 12 and 16 rotate, and at the same time, the spring member 15 bends so as to expand upward against the elasticity, and the support bracket 13 automatically moves upward with respect to the vehicle body with the support shaft 12 as the center of rotation. The support bracket 13 and the camera body 14 are prevented from being damaged.

At this time, the support bracket 13 is installed so that the end face thereof is located flush with the rear wall 4b of the container 4 or at a position retracted from the rear wall 4b when the support bracket 13 is rotated upwardly of the vehicle. . Further, since the support bracket 13 is tilted obliquely rearward of the vehicle body, it is possible to easily and surely rotate the storage bracket upward from the use position when the obstacle approaches.

When the support bracket 13 is separated from the dock shelter 2 by the forward movement of the truck 3, the return force caused by the bending of the spring member 15 automatically returns to the use position shown in FIG. 1 (A).

On the other hand, while the truck 3 is moving forward,
When an obstacle such as a tree branch E exists above the container 4, as shown in FIG. 4B, the support bracket 13 is moved by the approach of the obstacle (the dog shelter 2 in this case) accompanying the forward movement of the truck 3. Upon contact with the branch E, the shafts 12 and 16 rotate, and at the same time, the spring member 15 bends so as to expand downward against elasticity, and the support bracket 13 moves downward with respect to the support shaft 12 as the center of rotation. The support bracket 13 and the camera body 1 are automatically rotated to be in the retracted state.
4 is prevented from being damaged.

At this time, since the inclination of the support bracket 13 is obliquely rearward of the vehicle body, it is possible to easily and surely rotate the storage bracket downward from the use position when the obstacle approaches.

When the support bracket 13 is separated from the branch E by the forward (or backward) movement of the truck 3, the restoring force associated with the bending of the spring member 15 automatically brings it to the use position shown in FIG. 1 (A). Return.

(Second Embodiment) FIG. 6 shows a second embodiment of the surveillance camera according to the present invention. In the first embodiment, the spring member 15 has a flat rod shape and one end 1 thereof.
Although the structure in which 5a is supported by the rotary shaft 16 is disclosed, the rotary shaft 16 is abolished in the second embodiment.

In FIGS. 6A and 6B, the surveillance camera 20 includes a base bracket 21, a support shaft 22, a movable bracket 23, a camera body 24, and a spring member 25.

The base bracket 21 has a U-shaped cross section that opens upward and is fixed to the upper surface 4a of the container 4. One standing wall 21 of the base bracket 21
A perfect circular through hole 21b through which the support shaft 22 penetrates is formed in a, and the other standing wall 21c of the base bracket 21 is formed.
A through-hole 21d having a perfect circular shape through which the support shaft 22 passes is formed therein. Further, a pair of holding projections 21e, 21e which are vertically separated from each other are provided on the inner wall surface of the standing wall 21c.

The support shaft 22 has a head portion 22a having a diameter larger than that of the through hole 21b and a through hole 21 protruding from the head portion 22a.
a substantially cylindrical shaft portion 22b penetrating b and 21d, and the shaft portion 1
Similar to 2, a fitting groove (not shown) formed on the peripheral surface near the tip of the shaft portion 22b, and chamfered portions 22c formed on the upper and lower sides.
And a spring engagement hole 22d formed in the shaft portion 22b.

The movable bracket 23 has a U-shaped cross section that opens downward, and one wall portion 2 facing each other.
A through hole 23b through which the shaft portion 22b penetrates is formed in 3a. Further, the other opposite wall portion 23c of the movable bracket 23 has a through hole 23d (see FIG. 2) through which the tip of the shaft portion 22b penetrates while being engaged with the chamfered portion 22c of the shaft portion 22b.
(A shape similar to that of (A)) and an arc-shaped angle adjusting groove 23e are formed.

Both ends of the camera body 24 are attached to the movable bracket 23 via bolts 27, 27.
The angle of the movable bracket 23 can be adjusted by engaging one of the bolts 27 with the angle adjustment groove 23e.

The spring member 25 has a spiral shape which is wound in a separated state, one end 25a thereof is held by the holding projections 21e, 21e, and the other end 25b thereof is engaged with the spring engaging hole 22d. .

In the above structure, the surveillance camera 20 is assembled by temporarily mounting the camera body 24 on the movable bracket 23 via the bolts 27, 27, and then through holes 21b, 21d.
With respect to the through holes 23b and 23d so as to be coaxial with each other, and in this state, the support shaft 22 is attached to the through holes 21b and 21d.
d, 23b, 23d and the spring member 25 are penetrated.

At this time, the support shaft 22 has the through holes 21b, 2
1d and 23b are in a free state, and the through hole 2
For 3d, since the through hole 23d is formed in a shape that engages with the chamfered portions 22c, 22c, the support shaft 22
The support bracket 23 is integrally rotated with respect to the rotation.

From this state, by fitting the C ring 26 into the fitting groove of the support shaft 22, the support shaft 22 is prevented from coming off from the standing wall 21c.

Further, one end 25a of the spring member 25
Is held by the holding projections 21e, 21e, and the other end 2
5b is engaged with the spring engagement hole 22d.

At this time, the support bracket 23 is inclined toward the rear upper part of the vehicle body protruding from the upper surface 4a and the rear surface 4b along with the rigidity of the spring member 25, and this state corresponds to the use position of the camera body 24. Become.

Incidentally, the fine adjustment in the visual field direction of the camera body 24 is performed after this state is brought about by the bolt 27 and the angle adjusting groove 23.
This is performed by adjusting the positional relationship with e, and the camera body 24 is fixed to the support bracket 23 when the fine adjustment is completed.

When an obstacle comes into contact with the support bracket 23 as the truck moves backward or forward, the support shaft 22
At the same time as the rotation, the spring member 25 is deformed against the elasticity, and the support bracket 23 is automatically rotated upward or downward about the support shaft 22 as the center of rotation to be in the retracted state. Damage to the main body 24 is prevented.

When the support bracket 23 is separated from the obstacle by the forward movement (or backward movement) of the truck 3, the return force associated with the deformation of the spring member 25 automatically returns to the use position.

By the way, the surveillance camera of the present invention can be applied not only to the trucks described above but also to large vehicles such as buses and wagon vehicles.

[0048]

As described above, in the surveillance camera of the present invention, the base bracket fixed to the vehicle body,
A support shaft that rotatably passes through the base bracket, a movable bracket that is fixed to the support shaft in an inclined state with respect to the base bracket, a camera body that is fixed to the movable bracket, and one end of the base bracket. By having the spring member supported and having the other end supported by the support shaft, it is possible to prevent damage to an obstacle while eliminating the need for switching operation between the use position and the storage position. In addition, the field of view can be fixed right up to the obstacle behind the vehicle body.

[Brief description of drawings]

1A and 1B show a surveillance camera according to a first embodiment of the present invention, FIG. 1A is a side view of the surveillance camera in a use position, and FIG. 1B is a sectional view taken along the line AA of FIG.

FIG. 2A is a perspective view of a main part before the support shaft is attached to each bracket, and FIG. 2B is a perspective view of a state where the support shaft is attached to each bracket.

3 (A) is a perspective view of a main part before the rotary shaft is mounted on the base bracket, and FIG. 3 (B) is a perspective view of the rotary shaft mounted on the base bracket.

FIG. 4 is a side view of the surveillance camera showing a state of retreating to a vertical obstacle, and FIG. 4B is a side view of the surveillance camera showing a state of retreating to a horizontal obstacle.

FIG. 5A is a side view of the truck with a surveillance camera installed, and FIG. 5B is a rear view of the truck with a surveillance camera installed.

6A and 6B show a surveillance camera according to Embodiment 2 of the present invention, FIG. 6A is a side view of the surveillance camera in a use position, and FIG. 6B is a sectional view taken along line BB of FIG.

FIG. 7A is an explanatory diagram showing the relationship between a dog shelter and a truck, and FIG. 7B is a front view of the dog shelter.

[Explanation of symbols]

 4 ... Container (vehicle body) 10 ... Surveillance camera 11 ... Base bracket 12 ... Support shaft 13 ... Movable bracket 14 ... Camera body 15 ... Spring member 15a ... One end 15b ... Another end

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[Procedure amendment]

[Submission date] April 18, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of drawings]

1A and 1B show a surveillance camera according to a first embodiment of the present invention, FIG. 1A is a side view of the surveillance camera in a use position, and FIG. 1B is a sectional view taken along the line AA of FIG.

FIG. 2A is a perspective view of a main part before the support shaft is attached to each bracket, and FIG. 2B is a perspective view of a state where the support shaft is attached to each bracket.

3 (A) is a perspective view of a main part before the rotary shaft is mounted on the base bracket, and FIG. 3 (B) is a perspective view of the rotary shaft mounted on the base bracket.

FIG. 4A is a side view of the surveillance camera showing a state of retreating to a vertical obstacle, and FIG. 4B is a side view of the surveillance camera showing a state of retreating to a horizontal obstacle. It is a figure.

FIG. 5A is a side view of the truck with a surveillance camera installed, and FIG. 5B is a rear view of the truck with a surveillance camera installed.

6A and 6B show a surveillance camera according to Embodiment 2 of the present invention, FIG. 6A is a side view of the surveillance camera in a use position, and FIG. 6B is a sectional view taken along line BB of FIG.

FIG. 7A is an explanatory diagram showing the relationship between a dog shelter and a truck, and FIG. 7B is a front view of the dog shelter.

[Explanation of Codes] 4 ... Container (vehicle body) 10 ... Surveillance camera 11 ... Base bracket 12 ... Support shaft 13 ... Movable bracket 14 ... Camera body 15 ... Spring member 15a ... One end 15b ... Another end

Claims (3)

[Claims] 1. A base bracket fixed to a vehicle body, a support shaft rotatably passing through the base bracket, a movable bracket fixed to the support shaft in an inclined state with respect to the base bracket, and the movable bracket. And a spring member whose one end is supported by the base bracket and the other end is supported by the support shaft so that the movable bracket is always kept in the inclined state. And surveillance cameras. 2. The monitor according to claim 1, wherein the spring member has a rod shape that allows bending, and the one end is supported by a shaft member rotatably provided on the base bracket. camera. 3. The surveillance camera according to claim 1, wherein the spring member has a spiral shape.