JP2020131826A - Rear monitoring device and assembly method of the same - Google Patents

Abstract

To provide a rear monitoring device which enables a spherical body of a support member to be press-fitted easily in a bearing part provided at a body part having a rear monitoring function part, and to provide an assembly method of the rear monitoring device.SOLUTION: A bearing part 11 is mounted on a body case 3a of a body part 3 on which a rear monitoring function part is mounted, and an elastic holding piece 11a is fastened by a fastening ring 16 at the bearing part 11. A spherical body 12 is formed at a support member 2 and a tool hole part 13 is formed on a bending outer surface 2c. A pressing protrusion part 15a of a pressing tool 15 is inserted into the tool hole part 13 and the spherical body 12 is pressed along a pressing action line L to press-fit the spherical body 12 into the bearing part 11.SELECTED DRAWING: Figure 6

Description

The present invention relates to a rear monitoring device in which a support member attached to a vehicle and a main body portion equipped with a rear monitoring function unit are connected via a universally connecting portion, and an assembly method thereof.

Patent Document 1 describes an invention relating to a mirror assembly in which a mirror case is supported on a stay fixed in a vehicle interior.
As described in paragraphs [0030] and [0031], this mirror assembly has a stay body in which the stay is bent, and a pivot is integrally formed at one end of the stay body. A mirror is attached to the surface of the mirror case, and a stay-side socket is formed on the back surface. By press-fitting the pivot integrated with the stay into the stay-side socket, the mirror case is tiltably supported with respect to the stay.

JP-A-2007-269182

The conventional mirror assembly described in Patent Document 1 and the like has a problem that it is difficult to press-fit the spherical pivot formed on the stay into the stay-side socket of the mirror case. Recently, a rear monitoring device is used in which the display cell and the reflector are switched and used. However, in this rear monitoring device, the internal mass of the mirror case becomes large, so that the stay side socket is tightened to the pivot. You need to increase your power. As a result, the resistance when the pivot is press-fitted into the stay-side socket is large, and the press-fitting operation becomes difficult.

Therefore, it is necessary to use a tool to push the pivot into the stay-side socket, but if the stay is held by the tool or the stay is pressed by the tool, there is a problem that the surface of the stay is damaged. In particular, if a stay whose surface is painted or plated is used, the paint or plating will be peeled off by the use of a tool, and the appearance will be spoiled. Further, when the stay has a bent portion, it is difficult to effectively apply a force for pushing the pivot toward the stay-side socket to the stay.

The present invention solves the above-mentioned conventional problems, facilitates the work of press-fitting a sphere formed on a support member into a bearing portion of a main body portion, and further prevents the surface of the support member from being noticeably scratched. It is an object of the present invention to provide a rear monitoring device and an assembly method thereof that can be prevented.

The present invention relates to a rear monitoring device provided with a support member attached to a vehicle, a main body portion equipped with a rear monitoring function unit, and a universally connecting portion for connecting the support member and the main body portion.
The universally connected portion is composed of a sphere formed on the support member and a bearing portion provided on the main body portion.
A tool hole or a tool recess into which a pressing tool is inserted is formed in the support member, and a pressing force for press-fitting the sphere into the bearing portion is applied to the inside of the tool hole or the tool recess. It is characterized in that a pressing receiving portion that receives from the pressing tool is provided.

In the rear monitoring device of the present invention, the pressing force received by the pressing receiving portion is directed to the sphere.

In the rear monitoring device of the present invention, the pressing receiving portion is a pressing receiving surface, and the pressing action line passing through the center of the pressing receiving surface and perpendicular to the pressing receiving surface is directed to the center of the sphere. preferable.

In the rear monitoring device of the present invention, the support member is formed with a bent portion that bends near the sphere, and the bent outer surface of the bent portion is formed with a hole for a tool or a recess for a tool. Can be configured as.

Further, the present invention is an assembly of a rear monitoring device provided with a support member attached to a vehicle, a main body portion equipped with a rear monitoring function unit, and a universally connecting portion for connecting the support member and the main body portion. In the method
A sphere and a hole for a tool or a recess for a tool into which a pressing tool is inserted are formed in the support member.
The pressing tool is pressed against the pressing hole provided inside the tool hole or the tool recess, and the sphere is press-fitted into the bearing provided in the main body.
The sphere and the bearing portion form the freely connecting portion.

In the method of assembling the rear monitoring device of the present invention, the pressing force received by the pressing receiving portion is directed to the sphere.

In the method of assembling the rear monitoring device of the present invention, the pressing receiving portion is a pressing receiving surface, and a pressing action line passing through the center of the pressing receiving surface and perpendicular to the pressing receiving surface is directed to the center of the sphere. Is preferable.

In the method of assembling the rear monitoring device of the present invention, the support member is formed with a bent portion that bends near the sphere, and the bent outer surface of the bent portion is formed with the tool hole or the tool recess. Can be configured as a thing.

In the present invention, a pressing tool can be inserted into a hole for a tool or a recess for a tool formed in a support member, and the pressing receiving portion can be pushed by the pressing tool to press-fit the sphere into the bearing portion. Therefore, even if the holding force of the sphere by the bearing portion is large and the press-fitting resistance force to the bearing portion is large, the sphere can be easily inserted into the bearing portion. Moreover, since the pressing receiving portion is formed inside the tool hole or the tool recess and is not exposed on the outer surface of the support member, the pressing receiving portion pressed by the pressing tool is scratched, or the paint or plating is peeled off. Even if this occurs, the appearance of the support member is not significantly impaired.

A perspective view showing the rear monitoring device according to the embodiment of the present invention from the rear. The rear monitoring device shown in FIG. 1 is shown from the front, and is a perspective view showing an operation of press-fitting a sphere of a support member into a bearing portion of a main body portion. A perspective view showing a state in which a sphere of a support member is press-fitted into the bearing portion of the main body of the rear monitoring device from the front. A perspective view showing from the front a universally connected portion in which a sphere of a support member is press-fitted into a bearing portion of the main body portion. A vertical cross-sectional view showing the main body and the support member in the state of FIG. A vertical sectional view showing the main body and the support member in the state of FIG.

The appearance of the rear monitoring device 1 is shown in FIGS. 1 and 2. The rear monitoring device 1 is for in-vehicle use, and is attached to a ceiling or the like in the vehicle interior above the front windshield. The rear monitoring device 1 is the front in which the F direction is the traveling direction of the vehicle. The B direction is the rear side opposite to the traveling direction of the vehicle, and is the direction toward the vehicle interior and the rear window of the vehicle.

As shown in FIGS. 1 and 3, the rear monitoring device 1 has an arm-shaped support member (stay) 2 and a main body portion 3 supported by the support member 2, and the support member 2 and the main body portion 3 Are connected by the free connecting portion 10.
A fixing portion 2a is formed at the upper end portion of the support member 2 so as to be directly fixed to the ceiling portion or the like in the vehicle interior or fixed via another fixing member. The support member 2 is formed by a die-casting method using a light metal material such as aluminum or an aluminum alloy, and its surface is coated. The surface of the support member 2 may be plated with a metal other than aluminum, or may be made of a synthetic resin material.

The main body 3 has a main body case 3a. The main body case 3a is formed by a die-casting method using a metal material such as zinc, and its surface is painted. The surface of the support member 2 and the surface of the main body case 3a are preferably painted with a similar color such as black.

As shown in FIGS. 2 and 5, an opening 3b is formed in a front plate portion facing the front (F direction) of the main body case 3a, and a bearing portion 11 is provided inside the opening 3b. .. The support member 2 has a bent portion 2b that bends at an angle of approximately 90 degrees, and a sphere 12 is integrally formed at a tip portion bent by the bent portion 2b. The freely connecting portion 10 is composed of a bearing portion 11 and a sphere 12. The freely connecting portion 10 is a ball joint.

As shown in FIGS. 4 and 5, a plurality of elastic holding pieces 11a are formed in the bearing portion 11, and the holding space 11b surrounded by the plurality of elastic holding pieces 11a has an inner surface along a concave spherical surface. It has become. The bearing portion 11 is made of a synthetic resin material, and a plurality of elastic holding pieces 11a can be elastically deformed. A tightening ring 16 is attached to the outer circumference of the elastic holding piece 11a. The tightening ring 16 is an O-ring formed of a steel wire having a spring property. The elastic force of the tightening ring 16 causes the plurality of elastic holding pieces 11a to be tightened in a direction approaching each other.

As shown in FIGS. 2, 4 and 5, the surface of the support member 2 facing in the direction opposite to the bending direction in the bent portion 2b is a bent outer surface 2c. The bent outer surface 2c is directed forward (F direction). A tool hole 13 is formed on the bent outer surface 2c. As shown in FIG. 5, the tool hole portion 13 is a cylindrical surface having a uniform radius or a tapered surface whose diameter gradually narrows toward the sphere 12. The inner peripheral surface 13a functions as a guide surface for guiding the pressing protrusion (pressing shaft portion) 15a of the pressing tool 15 shown in FIG. A pressing receiving surface 13b, which is a pressing receiving portion that receives pressing force from the tip of the pressing protrusion 15a, is formed at the inner end of the tool hole portion 13. The pressing receiving surface 13b is a circular flat surface.

The pressing action line L is shown in FIGS. 5 and 6. The pressing action line L is defined as a center line passing through the center of gravity of the cross section of the inner peripheral surface 13a. In this case, as shown in FIG. 5, the pressing receiving surface 13b is preferably formed in parallel with the plane H perpendicular to the pressing action line L. However, the pressing receiving surface 13b may be formed so as to be inclined with respect to the pressing action line, or the pressing receiving surface 13b may be a convex curved surface toward the front (F direction) or a concave curved surface. You may. Further, the pressing action line L can be defined as a line that passes through the center (center of gravity) of the pressing receiving surface 13b, which is the pressing receiving portion, and is perpendicular to the pressing receiving surface 13b.

As shown in FIGS. 5 and 6, the pressing action line L defined as described above preferably passes in the vicinity of the center O or the center O of the sphere 12. The center O of the sphere 12 is the center of curvature of the sphere surface of the sphere 12. It is most preferable that the pressing action line L passes through the center O, but it is sufficient that the pressing action line L passes near the center O, and even if the pressing action line L deviates to the maximum from the center O, the pressing action line L is the sphere 12. It is preferable to pass through the inside.

In the present invention, the support member 2 may be provided with a recess for tools instead of the hole for tools 13. The recess for the tool lacks a part of the inner peripheral surface 13a of the hole portion 13 for the tool. For example, in FIG. 5, a part 13c of the inner peripheral surface 13a is missing, and the internal space of the hole portion is a bent outer surface. It is a shape that is open toward 2c. Also in this case, it is preferable that the remaining inner peripheral surface 13a is a part of the cylindrical surface or a part of the tapered surface and has a shape capable of guiding the pressing protrusion 15a of the pressing tool 15 to the pressing receiving surface 13b. ..

As shown in FIG. 4, the bearing portion 11 is provided with a rotation support shaft 18 extending in a direction orthogonal to the front-rear direction (FB direction). The rotation support shaft 18 is rotatably supported by the main body case 3a, and the bearing portion 11 can rotate around the rotation center line R orthogonal to the front-rear direction inside the main body case 3a. It has become. That is, the main body case 3a can change the inclination angle toward the rear with reference to the bearing portion 11 constituting the freely connecting portion 10. As shown in FIGS. 4 and 5, the operating lever 4 is provided on the main body case 3a. The operation lever 4 is rotatably supported by the main body case 3a by the operation fulcrum shaft 4a. The operating lever 4 projects downward from the main body case 3a. As shown in FIGS. 4 and 5, a slider 5 is provided inside the main body case 3a, and a cam mechanism is configured between the slider 5 and the bearing portion 11. When the slider 5 moves in the main body case 3a by the action of this cam mechanism, the main body case 3a is rotated about the bearing portion 11 and the rotation center line R as a reference.

As shown in FIG. 1, in the main body 3, the rear monitoring function unit 6 is housed in the rear portion (B direction side) of the internal space of the main body case 3a. The cross-sectional views of FIGS. 5 and 6 show a state in which the rear monitoring function unit 6 is removed. The rear monitoring function unit 6 has a display cell whose display screen is directed to the rear (B direction) and a half mirror superimposed on the surface of the display cell on the rear (B direction) side. The display cell is a color liquid crystal display cell having a backlight device, an electroluminescence display cell, or the like. When the display cell is turned on, the rear monitoring function unit 6 displays an image of the rear of the vehicle taken by a camera provided on the vehicle body on the screen, and the image is visible through the half mirror. When the display cell is turned off, the half mirror functions as a reflecting mirror, and the window behind the vehicle and the rear view of the vehicle passing through the window can be visually recognized as a reflection image. The rear monitoring function unit 6 may be composed only of a reflector without having a display cell.

Next, a method of assembling the rear monitoring device 1 will be described.
After incorporating the bearing portion 11, the operating lever 4, the slider 5, and other mechanical members into the main body case 3a, the sphere 12 is press-fitted into the bearing portion 11 to form the universally connecting portion 10. Alternatively, after incorporating the bearing portion 11, the operating lever 4, the slider 5, and other mechanical members into the main body case 3a, and further incorporating the rear monitoring function portion 6, the sphere 12 is press-fitted into the bearing portion 11 to be freely connected. It constitutes a part 10.

In the assembly work for configuring the freely connecting portion 10, as shown in FIG. 2, the sphere 12 of the support member 2 is inserted into the opening 3b facing the front of the main body case 3a, and the sphere 12 is inserted into the bearing portion 11 in the main body case 3a. Press into. At this time, as shown in FIG. 6, the pressing protrusion 15a of the pressing tool 15 is inserted into the tool hole 13 or the tool recess formed in the support member 2. The pressing protrusion 15a is guided to the inner peripheral surface 13a of the tool hole portion 13, and when the pressing tool is pushed as it is, the pressing receiving surface 13b is pushed by the tip of the pressing protrusion 15a, and the sphere 12 of the support member 2 is pressed. It is pushed into the bearing portion 11.

The pressing action line L, which is defined as the center line of the inner peripheral surface 13a of the tool hole portion 13 or as the vertical line of the pressing receiving surface 13b, passes through the inside of the sphere 12, preferably the center O of the sphere 12. Or it is passing in the vicinity. Therefore, the sphere 12 can be relatively easily press-fitted into the holding space 11b of the bearing portion 11 by the pressing force of the pressing tool 15. The main body 3 of the embodiment is equipped with a rear monitoring function 6 including a display cell, and has a large mass. Therefore, in the freely connecting portion 10, it is necessary to increase the tightening force of the tightening ring 16 and increase the holding force of the sphere 12 by the bearing portion 11 so that the main body portion 3 cannot be freely tilted in the freely connecting portion 10. There is. As a result, the resistance force when the sphere 12 is press-fitted into the bearing portion 11 is excessive, but the pressing action line L of the tool hole portion 13 is directed to the inside of the sphere 12, so that the pressing tool 15 The work of press-fitting the sphere 12 into the bearing portion 11 can be easily performed by the pressing force of.

Since the pressing force of the pressing protrusion 15a of the pressing tool 15 acts mainly on the pressing receiving surface 13b, the pressing receiving surface 13b may be scratched during the press-fitting operation, and the coating may be peeled off or the plating may be peeled off. .. However, since the pressing receiving surface 13b is inside the tool hole 13 or the tool recess, the damaged portion is difficult to see from the outside. Further, since the tool hole portion 13 is opened to the bent outer surface 2c of the bent portion 2b of the support member 2 and the bent outer surface 2c is directed to the front (F direction) of the vehicle, the pressing receiving surface 13b is directed from the vehicle interior. Is rarely seen, and even if the pressing receiving surface 13b is scratched, the appearance of the rear monitoring device 1 is not substantially impaired.

Next, the operation of the rear monitoring device 1 that has been assembled will be described.
The rear monitoring device 1 has a bearing portion when the operating lever 4 is downward and when the operating lever 4 is tilted forward (F direction) due to the operation of the slider 5 and the cam mechanism shown in FIGS. 4 and 5. The rotation angle of the main body 3 with reference to 11 changes, and the direction of the rear monitoring function 6 mounted on the main body 3 toward the vehicle interior changes. A detection switch for detecting a change in the posture of the operation lever 4 is provided inside the main body case 3a, and the display cell lights up either when the operation lever 4 is downward or when it is tilted forward. , The image of the rear view of the vehicle captured by the camera is displayed on the rear view function unit 6, and in the other posture, the display cell is turned off, the half mirror becomes a reflector, and the rear view mirror function unit 6 is a rearview mirror. Functions as.

When the driver holds and moves the main body 3 by hand while the rear-viewing function unit 6 is functioning as a rear-view mirror, the main body 3 tilts in the three-dimensional direction at the universal connection 10 and has a rear-view monitoring function. The unit 6 is set at an angle that is easy for the driver or the like to see. When the operation lever 4 is operated from that state to change the angular posture of the main body 3, the mode is switched to the mode in which the image is displayed in the display cell at the same time. Since the angular posture of the main body 3 has been changed from the time of the rear-view mirror, it is possible to prevent the image displayed in the display cell from being visually observed by overlapping the rear reflection image projected by the half mirror.

1 Rear monitoring device 2 Support member 2b Bending part 2c Bending outer surface 3 Main body part 3a Main body case 6 Rear monitoring function part 10 Flexible connecting part 11 Bearing part 11a Elastic holding piece 11b Holding space 12 Sphere 13 Tool hole 13a Inner peripheral surface 13b Pressing receiving surface 15 Pressing tool 15a Pressing protrusion L Pressing action line O Center of sphere

Claims (8)

In a rear monitoring device provided with a support member attached to a vehicle, a main body portion equipped with a rear monitoring function portion, and a universally connecting portion for connecting the support member and the main body portion.
The universally connected portion is composed of a sphere formed on the support member and a bearing portion provided on the main body portion.
A tool hole or a tool recess into which a pressing tool is inserted is formed in the support member, and a pressing force for press-fitting the sphere into the bearing portion is applied to the inside of the tool hole or the tool recess. A rear monitoring device characterized in that a pressure receiving portion that receives from a pressing tool is provided. The rear monitoring device according to claim 1, wherein the pressing force received by the pressing receiving portion is directed to the sphere. The rear monitoring device according to claim 2, wherein the pressing receiving portion is a pressing receiving surface, and a pressing action line passing through the center of the pressing receiving surface and perpendicular to the pressing receiving surface is directed to the center of the sphere. Any one of claims 1 to 3, wherein a bent portion that bends near the sphere is formed in the support member, and a tool hole portion or a tool recess is formed on the bent outer surface of the bent portion. The rear monitoring device described in. In a method of assembling a rear monitoring device provided with a support member attached to a vehicle, a main body portion equipped with a rear monitoring function portion, and a universally connecting portion for connecting the support member and the main body portion.
A sphere and a hole for a tool or a recess for a tool into which a pressing tool is inserted are formed in the support member.
The pressing tool is pressed against the pressing hole provided inside the tool hole or the tool recess, and the sphere is press-fitted into the bearing provided in the main body.
A method for assembling a rear monitoring device, characterized in that the sphere and the bearing portion form the universally connected portion. The method for assembling a rear monitoring device according to claim 5, wherein the pressing force received by the pressing receiving portion is directed to the sphere. The method for assembling a rear monitoring device according to claim 6, wherein the pressing receiving portion is a pressing receiving surface, and a pressing action line passing through the center of the pressing receiving surface and perpendicular to the pressing receiving surface is directed to the center of the sphere. .. The method according to any one of claims 5 to 7, wherein a bent portion that bends near the sphere is formed in the support member, and a tool hole portion or a tool recess is formed on the bent outer surface of the bent portion. How to assemble the rear monitoring device.

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