JP2624579B2 - Roll bar hinge device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge device for a roll bar provided on an open car.

[0002]

2. Description of the Related Art Conventionally, in an open car, a roll bar is fixed to a vehicle body, and when a roof member is not used, the roll bar is left standing on the vehicle body in an upright state.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to enable a roll bar to be held in a standing state and a falling state. To provide a roll bar hinge device.

[0004]

In order to achieve the above object, the present invention relates to a hinge device for a roll bar disposed on a vehicle body, comprising: an arm provided on a base side of the roll bar; It is provided with a lock mechanism consisting of an upper part that is provided and axially attached to the vehicle body, a lower tooth that can be disengaged from the upper part, and an operating member that engages with the lower tooth, and operates the operating member. By obtaining the locked state and the unlocked state of the lower tooth with respect to the upper part, each state of the roll bar in the standing state and the falling state is maintained.

[0005]

According to the above construction, by operating the operating member of the lock mechanism, the lock mechanism is locked, and the roll bar can be held in the upright state and the falling state. As a result, when the roof member is removed,
The roll bar can be stored in the vehicle body with the roll bar lying down, and the appearance can be improved.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the drawings.

FIG. 1 is an explanatory front view showing the configuration of a roll bar hinge device, FIG. 2 is an explanatory side view taken along the line II-II of FIG. 1, and FIG. 3 is a schematic explanatory view of an open car provided with a roll bar. 4 is an explanatory view showing a state when the roll bar is standing up, FIG. 5 is an explanatory view showing a state when the roll bar is lying down, and FIG. 6 is an explanatory view showing a state when the lock mechanism is half-locked.

In FIG. 1, reference symbol E denotes a hinge device for the roll bar 20 disposed on the vehicle body.

The present invention particularly relates to the roll bar 20.
Arm 30 provided on the base side of the vehicle, and an upper part 4 provided on the arm 30 and axially mounted on the vehicle body 11 side.
0, a lower tooth 50 that can be disengaged from the upper tooth 40, and an operating member 6 that engages with the lower tooth 50.
The lock bar R is configured to have a lock state R and an unlock state in which the lower member 50 is locked with respect to the upper part 40 by operating the operating member 60. It is characterized in that the state is maintained.

Next, the structure of the present invention will be described in more detail.

Although the lock mechanism R is provided on the left and right sides of the rear portion of the vehicle body 11, the structure thereof is substantially the same, so that only the right lock mechanism R will be described below.

The roll bar 20 is formed in a gate shape, and its base side is fixed to an arm 30 arranged at the rear of the vehicle body 11 of the open car.
The roof member 10 is detachably mounted on each upper surface of the front pillar 12 and the front pillar 12. The rear window 15 is attached to the arm 30 adjacent to the roll bar 20.

The upper part 40 is fixed to a lower part of the arm 30, and an intermediate part thereof is mounted on a base plate 14 fixed to the vehicle body 11 by a first pivot 41. A first pivot 41 is provided on the lower edge of the upper part 40.
An arc-shaped tooth portion 40a centering on the axis of the tooth portion 40a is formed, and an arc portion 40b having an outer diameter larger than the outer diameter of the tooth portion 40a is formed at an intermediate portion of the tooth portion 40a.

The lower tooth 50 has its base portion pivotally attached to the base plate 14 by means of a second pivot 51, and has a tooth portion 50 a meshing with the tooth portion 40 a of the upper part 40 at the free end side upper edge. I have. Also, at the lower edge of the lower end 50 on the free end side, convex portions 50c and 50d are formed on both sides of the concave portion 50b.

The base of the operating member 60 is pivotally attached to the base plate 14 by a third pivot 61, and the concave portion 50b and the convex portions 50c, 50 of the lower tooth 50 are mounted on the upper portion thereof.
The cam part 60a which engages with d is formed. The pin 62 implanted below the operating member 60 has a wire 6
3 is locked and connected to an operation lever provided at an arbitrary position on the vehicle body.

First, second, and third pivots 41, 51, 61
Each end of the first, second, third
The other ends of the pivots 41, 51, 61 of the base plate 14
In particular, the first pivot 41 is wound with a spiral spring 42 for rotating the upper part 40 in a counterclockwise direction. In addition, locking portions 6 formed on the lower portion of the operating member 60 and the lower portion of the holder plate 70, respectively.
Each hook portion of a tension spring 64 is locked to 0b and 70b, and the operating member 60 is biased by the tension spring 64 to rotate clockwise.

Further, a warning mechanism W is provided in the hinge device E of the roll bar. The warning mechanism W includes a microswitch 80 which is an example of an actuator having a contact 81 which can contact the operating member 60. And a buzzer unit 90 connected to the microswitch 80 by a lead wire 91.

Next, the operation of the present invention will be described.

As shown in FIG. 4, when the roll bar 20 is in the upright state, the lower tooth 50 is provided with its convex portion 50.
c is pressed by the cam portion 60 a of the operating member 60, and its tooth portion 50 a meshes with the tooth portion 40 a of the upper part 40. As a result, the lock mechanism R is locked, and the roll bar 20 can be held upright.
The roof member 10 can be mounted on each of the upper part of the front pillar 12 and the front pillar 12.

In order to bring the roll bar 20 in the upright state to the down state as shown in FIG. 5, the operating lever is operated to pull the wire 63 against the spring force of the tension spring 64. Then, the operating member 60 rotates counterclockwise, and the cam portion 60a engages with the concave portion 50b and the convex portion 50d of the lower tooth 50 to rotate the lower tooth 50 clockwise. As a result, the engagement between the teeth 40a and 50a of the upper tooth 40 and the lower tooth 50 is released. At this time, the operating member 60 is connected to the contact 81 of the microswitch 80.
, The buzzer unit 90 operates and the buzzer sounds.

In this state, the arm 30 is rotated clockwise to the position shown in FIG. 5 against the spring force of the spiral spring 42, and when the wire 63 is released, the operating member 60 is rotated clockwise by the spring force of the tension spring 64. The cam portion 60a pushes up the convex portion 50c of the lower tooth 50. Thereby, each tooth part 4 of the upper tooth 40 and the lower tooth 50
0a and 50a are meshed again, and the lock mechanism R is locked, so that the roll bar 20 can be held in the lying state as shown in FIG. At this time, the operating member 60 is separated from the contact 81 of the microswitch 80, so that the buzzer stops sounding.

As shown in FIG. 6, when the roll bar 20 is in an intermediate state between the upright state and the lying state, the tooth portions 50a of the lower tooth 50 are in the arc portions 40b of the upper teeth 40.
, And the lock of the lock mechanism R is in an incomplete state, that is, a so-called unlocked state. In this state, the lower tooth 50 is rotated clockwise by an amount corresponding to the tooth portion 50a of the upper tooth 40 rising on the circular arc portion 40b, and the operating member 60 is rotated counterclockwise by the convex portion 50c of the lower tooth 50. I do. Then, the operating member 60 comes into contact with the contact 81 of the microswitch 80, the buzzer unit 90 is operated, and the buzzer sounds. This makes it possible to accurately determine that the lock mechanism is in the unlocked state.

As described above, according to this embodiment, by operating the operating member 60 of the lock mechanism R, the lock mechanism R is locked, and the roll bar 20 is held in each of the upright state and the falling state. Can be. This allows
When the roof member 10 is removed, the roll bar 20 can be housed in the vehicle body 11 in a state in which the roll bar 20 is laid down, and the appearance can be improved.

Further, when the lock mechanism R is in the unlocked state, the warning mechanism W operates and the buzzer sounds, and when the lock mechanism R is locked, the buzzer stops sounding. Each of the states can be reliably detected.

[0025]

As described above, according to the present invention, by operating the operating member of the lock mechanism, the lock mechanism is locked, and the roll bar can be held in each of the upright state and the falling state. Thus, when the roof member is removed, the roll bar can be stored in the vehicle body in a state in which the roll bar is lying down, so that the appearance can be improved.

[Brief description of the drawings]

FIG. 1 is an explanatory front view showing a configuration of a roll bar hinge device of the present invention.

FIG. 2 is an explanatory side view taken along the line II-II of FIG. 1;

FIG. 3 is a schematic explanatory view of an open car provided with a roll bar.

FIG. 4 is an explanatory view showing a state when the roll bar stands up.

FIG. 5 is an explanatory diagram showing a state when the roll bar is lying down.

FIG. 6 is an explanatory diagram showing a state when the lock mechanism is half-locked.

[Explanation of symbols]

 E Roll bar hinge device R Lock mechanism W Warning mechanism 10 Roof member 11 Vehicle body 12 Front pillar 14 Base plate 20 Roll bar 30 Arm 40 Upper parts 40a Teeth part 40b Arc part 41 First pivot 42 Spiral spring 50 Lower teeth 50a Teeth part 50b Concave part 50c Convex part 50d Convex part 60 Operating member 60a Cam part 61 Third pivot 63 Wire 64 Tension spring 70 Holder plate 80 Actuator (micro switch) 81 Contact 90 Buzzer unit

Claims (1)

(57) [Claims] 1. A hinge device for a roll bar disposed on a vehicle body, comprising: an arm provided on a base side of the roll bar; an upper part provided on the arm and axially mounted on the vehicle body side; A lower tooth that can be disengaged from the tooth,
The roll bar is configured to have a lock mechanism including an operating member that engages with the lower tooth, and by operating the operating member to obtain a locked state and an unlocked state of the lower tooth with respect to the upper part, the upright state of the roll bar And a roll bar hinge device in which each state of the roll bar is maintained.