JPH08127287A - Outside mirror device - Google Patents

Abstract

PURPOSE: To provide the vibrationproof structure of the turning movement mechanism of the outside mirror device of a large-sized vehicle. CONSTITUTION: An outside mirror device 10 provided on the side portion of the windshield 2 of a large-sized vehicle 1 possesses a main stay 40 fitted to a roof panel 3 and a front panel 5 through support members 20, 30. Mirrors 51, 52, 53 are fitted to the main stay 40. A motor 80 to be provided in the roof inside conducts the turning drive of an arm 84, and the arm 84 operates a first link 86. The first link 86 operates a second link 65 through a joint 70A, and the second link 65 turns the main stay 40 in an arrow R direction, and the mirrors are housed. The joint 70A is a rubber joint, and restrains the vibration of the main stay 40 and the link mechanism.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mirror device for vehicles, especially for cab-over type vehicles.

[0002]

2. Description of the Related Art In a relatively large cab-over type truck or the like, a mirror stay made of a normal steel pipe is provided on the side of the windshield of the cab, the mirror stay having an arcuate shape or a U-shape protruding outward from the vehicle body. The stay is equipped with a rearview mirror for obtaining a rear view and an undermirror for obtaining a lower view around the vehicle body. In order to arrange the above-mentioned mirrors in front of and at the side of the front end of the vehicle body, the mirror stay has its upper end portion supported by the roof portion above the end portion of the windshield in the vehicle width direction at the rear end of the leg portion.
The other end of the letter-shaped support link is supported by a tightening member such as a bolt at the other end, and the lower end is also tightened by a bolt or the like on a mounting member attached to a vehicle body member near the lower edge of the windshield, such as the front panel. It is typically supported by a member. When the mirrors generate slight vibrations due to vibrations transmitted from the engine or the like, the mirrors lose their visibility and become useless as mirrors. Therefore, the upper and lower ends of the mirror stay serve as the V-shaped support link and the mounting bracket. On the other hand, the mirror is tightened with a sufficient tightening force that does not cause slight vibration.

On the other hand, in the case of a truck or the like, it is often necessary to drive on a narrow road or a work site where there is a risk that the mirror may come into contact with a house or an electric pole along the road. And its supporting structure,
Furthermore, in order to prevent damage to the house, etc., in the past, loosening tightening members such as bolts that connect the upper and lower ends of the mirror stay to the support link and the mounting bracket, rotate the mirror stay inward and make contact. Therefore, the troublesome work of returning the mirror stay to the normal position after traveling and tightening the tightening member with a preset torque has been performed. Therefore, recently, in order to save the troublesome work of rotating and resetting the mirror stay, an electric reciprocating drive device that is remotely operated by a switch operation from the driver's seat is used to move the mirror stay to its upper and lower end supporting axis lines. Various mirror devices that can be rotated around have been proposed. For example, Japanese Utility Model Publication No. 4-74147 and Japanese Utility Model Publication 5-5585.
The publication discloses this type of electric outside mirror device.

[0004]

However, in the conventional outside mirror device, the ball joint is used as the movable joint of the link. The device using the ball joint is apt to vibrate due to the vibration of the vehicle to which the outside mirror is attached and the vibration of the mirror, and there is a problem particularly when the mirror becomes large and heavy. The present invention provides an outside mirror device that solves the above-described conventional inconvenience.

[0005]

A side mirror device of the present invention includes a main stay for supporting a mirror, a support member for rotatably supporting upper and lower end portions of the main stay and being fixed to a vehicle body, and a vehicle. Of the motor disposed inside the roof of the vehicle, a swing arm attached to the motor shaft, a first link member having one end attached to the tip of the arm via a joint, and the other end of the first link member And a second link member that is connected via a joint. Then, the main stay is pivotally driven by the second link member, and the first link member and the second link member are connected by a rubber joint.

[0006]

The rubber joint is provided at the connecting portion of the two links, so that the vibration of the main stay supporting the mirror and the vibration of the vehicle are absorbed, and the vibration of the mirror can be prevented.

[0007]

1 is a perspective view showing a state in which a front body of a large vehicle 1 is equipped with an outside mirror device 10 of the present invention. The outside mirror device 10 has a roof stay 20 fixed to a roof panel 3 above the front windshield 2 and a bracket 30 fixed to a panel 5 below the windshield 2.
A main stay 40 that supports the mirror is attached to the bracket 30 so as to be rotatable in the direction of arrow R.

The main stay 40 supports, for example, three mirrors 51, 52, 53. Main stay 40
Has a U shape in which the upper and lower parts thereof are bent, and the end of the upper side 40a is connected to the roof stay 20 by a joint part indicated by reference numeral 60 as a whole.
The tip of the lower side portion 40b is rotatably supported by the bracket 30 via a ball joint 42. The boot 44 is covered around the ball joint 42 to be protected from dust.

A motor 80 disposed inside the roof panel 3 has an arm 84 attached to a motor shaft 82.
Rotate. The first end 8 of the first link 86 is attached to the tip of the arm 84 via the first ball joint 85.
6a are connected. Second end 86 of first link 86
b is connected to the second link 65.

FIG. 2 shows details of the joint portion 60 to which the upper portion of the main stay 40 is connected. First link 86
A joint 70 is attached to the second end 86b of the joint 70, and the stud 72 of the joint 70 is attached to the second link 6
5 through the first hole 65a and is fixed by a cap nut 74.

In FIG. 4, a conventional ball joint 70 is used as this joint 70, and a first link 86 and a second link 86 are provided.
2 shows a structure in which the links 65 are connected. The ball joint 70 engages with the member 71 connected to the first link 86 via a ball provided on the head of the stud 71, and has a structure that easily transmits vibration.

The present invention uses a rubber joint 70A as the joint 70. As shown in FIG. 3, the rubber joint 70 </ b> A has a structure in which a rubber 176 is filled in a hole through which the stud 172 of the eyebolt 10 screwed into the first link 86 penetrates and is tightened with a cap nut 174. This structure prevents transmission of vibration between the eyebolt 170 and the stud 72. The second link 65 is an L-shaped link and has a hole 65 at the other end.
In b, the pin 26 is inserted together with the hole 40d of the main stay 40. The pin 26 penetrates the mounting hole 22 at the tip of the roof stay 20 via the bush 24, and is fixed to the roof stay 20 with a nut 25. By adjusting the tightening force of the nut 25, the torque for retracting the main stay 40 is adjusted.

The outside mirror device of the present invention is configured as described above. Therefore, when the motor 80 is driven, the arm 84 rotates, and the second link 65 rotates via the first link 86. The main stay 40 that supports the mirrors 51, 52, and 53 by the rotation of the link 65 is swung in the direction of arrow R and is stored.

When the main stay 40 is turned to the use position, the second link 65 hits the stopper 90 and the position is regulated. Even if the main stay 40 is in this use position, if an external force more than the specified value acts on the main stay 40,
0 rotates at the joint and retracts. Although the vibration of the vehicle 1 and the vibration of the roof stay 20 are about to be transmitted to the main stay 40, the first link 86 and the second link 65 are used.
Since they are connected via the rubber joint 70A,
The vibration of the main stay 40 is absorbed and the mirror shake can be suppressed.

[0015]

As described above, according to the present invention, in a large-sized vehicle, the size of the mirror, which is arranged outside the vehicle and visually recognizes the rear and the lower part of the vehicle body, increases, and the number of mirrors increases. Focusing on the fact that the weight of the members that support these mirrors also increases and that they are susceptible to vibration, a rubber joint is provided at the joint portion of the link mechanism that pivotally moves the stay that supports the mirrors. With this configuration, vibration of the mirror is also prevented, and a good field of view can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view of a front portion of a vehicle that controls the present invention.

FIG. 2 is a detailed view of a support portion of a main stay of a mirror.

FIG. 3 is an explanatory view of a rubber joint of the present invention.

FIG. 4 is an explanatory view of a conventional ball joint.

[Explanation of symbols]

 1 Vehicle 2 Windshield 3 Roof panel 5 Front panel 10 Outside mirror device 20 Half stay 30 Bracket 40 Main stay 51, 52, 53 Mirror 60 Joint part 65 Second link member 70 Ball joint 70A Rubber joint 80 Motor 84 Arm 86 First link member

Claims (1)

[Claims] 1. An outside mirror device arranged on a side portion of a windshield of a vehicle in a vehicle width direction, wherein a main stay supporting the mirror and upper and lower end portions of the main stay are rotatably supported. A support member fixed to the vehicle body, a motor arranged inside the roof of the vehicle, a turning arm attached to the motor shaft, and a first link member whose one end is attached to the tip of the arm via a joint. , A second link member connected to the other end of the first link member via a joint, the main link is pivotally driven by the second link member, and the first link member and the second link member are provided. An outside mirror device characterized in that the link members of are connected by a rubber joint.