JPH086583Y2 - Opening / closing device for opening / closing body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an opening / closing device for an opening / closing body, and more particularly to an opening / closing device for an opening / closing body provided on a roof of a vehicle for ventilation.

[Prior Art] Conventionally, as an opening / closing device for such an opening / closing body, an actual opening / closing unit 61-20
The one described in Japanese Patent No. 1474 is known.

This includes a handle pivotally attached to one of a sunroof in a vehicle and a roof panel supporting the sunroof, and two pairs of links pivotally attached to the other and rotatably connected to a free end side of the handle, The sunroof is opened by unfolding the link to the handle, and the sunroof is closed by folding the link to the handle.

In order to ensure that the sunroof is held in the open position, both links are supported so that they can move toward and away from each other, and a spring that biases them so that they can move away from each other is provided, while the first protrusion is provided on the handle. When the link is provided, the first
A second protrusion is provided that abuts the protrusion and urges these links in a direction in which they come close to each other, while overcoming the first protrusion.

[Problems to be Solved by the Invention] However, in such a conventional opening / closing device, both the first projection and the second projection are provided on a handle and a link which are movable members, and the movement process In the above, since the second protrusion is configured to ride over the first protrusion, it has been difficult to reliably hold the opening / closing body at the open position due to displacement or wear.

An object of the present invention is to solve the conventional problem and to provide an opening / closing device for an opening / closing body that can reliably hold the opening / closing body even in the open position and the closed position of the opening / closing body.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention has one end pivotally attached to either one of an opening / closing body and a support body to which the opening / closing body is attached by a first shaft. A movable member, a fixed member fixed to the other, and a connection in which one end is pivotally attached to the other end of the movable member with a second shaft and the other end is pivotally attached to the fixed member with a third shaft. An opening / closing device for an opening / closing body, wherein the movable member, the connecting member, and the fixing member form a toggle mechanism, the opening / closing device being in pressure contact with the bearing portion of the first shaft at the closing position of the opening / closing body. The fixing member is provided with an elastic member that comes into pressure contact with the bearing portion of the second shaft at the open position of the body.

[Operation] According to the present invention, the elastic member provided on the fixed member is in pressure contact with the bearing portion of the second shaft pivotally connecting the movable member and the connecting member in the open position of the opening / closing body, and in the closed position. Is in pressure contact with the bearing portion of the first shaft that pivotally attaches the movable member to the opening / closing body or the support body.

Therefore, in the open position of the opening / closing body, the second shaft pivotally connecting the connecting member and the movable member is biased directly in the direction away from the dead point and is securely held.

Further, even when the opening / closing body is in the closed position, the second shaft is indirectly biased via the first shaft and the movable member in a direction away from the dead point and reliably held.

[Embodiment] An embodiment of the present invention will be described below with reference to the accompanying drawings.

 1 to 7 show one embodiment of the present invention.

First, referring to FIGS. 1 to 3, an outline of a vehicle ventilation device to which the present invention is applied will be described. 10 is a vehicle such as a truck, 12 is a roof panel on the cabin, 20
Is an opening / closing body provided on the roof 12 so as to be openable and closable, and 30 is an opening / closing device. The opening / closing body 20 has a tray-shaped lid 21 and an auxiliary lid 22 fixed to the inside thereof. The opening / closing body 20 has a hinge fixed to the auxiliary lid 22 on the front end side.
Through 23, is rotatably supported by the roof panel 12 as a support, and by providing the opening / closing device 30 on the rear end side,
The opening 14 formed in the roof panel 12 is opened and closed.

Next, details of the opening / closing device 30 will be described with reference to FIGS. 4 to 7.

Reference numeral 31 is a mounting member fixed to the auxiliary lid 22 of the opening / closing body 20 with bolts. The mounting member 31 has a bearing portion at its end.
31A is formed, and the first shaft is inserted into the bearing portion 31A.
With 32, one end of a handle member 33 as a movable member is pivotally attached via a through hole 33A.

Reference numeral 34 is a fixing member fixed to the roof panel 12 as a support body with a bolt through a through hole 34A. Fixing member
34 has a bearing hole 34B on the side opposite to the through hole 34A for pivotally mounting a yoke-shaped connecting member described later, and a bearing block 34C in which the bearing hole 34B is formed is formed in a narrow width. Further, a stopper 34D is integrally formed at the center of the upper surface of the bearing block 34C. A spring 35 as an elastic member having spring portions 35A formed in a curved shape on both sides of the stopper 34D is also fixedly mounted on the upper surface of the bearing block 34C.

36 has one end pivotally attached by a second shaft 37 via a through hole 33B formed at the other end of the handle member 33 and the other end has a third shaft 38 by which a bearing hole 34B of the fixing member 34 is provided. It is a yoke-shaped connecting member pivotally attached to.

The connecting member 36 has a bearing portion 36B formed in the bridge portion thereof with a bearing hole 36A through which the above-mentioned second shaft 37 is inserted, and the bearing portion 36B is also shown in FIGS. 4 and 7. As is apparent, the surface on which the spring 35 contacts at the open position of the opening / closing body 20 is the inclined surface 36C, and the notch 36D is formed to contact and engage the stopper 34D. In addition, through holes 36E, 36E into which the third shaft 38 is inserted are formed at the tip of the yoke portion.

Then, the distance between the through holes 33A and 33B of the handle member 33,
The distance between the through holes 36A and 36E of the connecting member 36 and the positional relationship with the first to third shafts 32, 37, 38 are set so that they constitute a toggle mechanism.

In the present embodiment having the above-mentioned configuration, when it is not necessary to ventilate the cabin, as shown in FIG.
The 20 is in the closed position, and when ventilation is required the second
As shown in the figure, the handle member 33 is operated to extend the opening / closing device, and the opening / closing body 20 is rotated by the hinge 23 to the open position.

At this time, the opening / closing device 30 is in the state shown in FIGS. 5 and 6 at the closed position of the opening / closing body 20, and the mounting member 31
The bearing portion 31A of the
35 is in pressure contact with the bearing portion 31A. The urging force of the spring 35 acts on the connecting member 36 via the first shaft 32, the handle member 33, and the second shaft 37 in the direction to rotate the connecting member 36 clockwise about the third shaft 38 in the drawing. To do. In other words,
The second shaft 37 acts in a direction away from the dead center existing on the extension of the straight line connecting the first and third shafts 32 and 38.

Therefore, the opening / closing body 20 is securely held in the closed position.

At the open position of the opening / closing body 20, the opening / closing device 30 is in the state shown in FIG. 7, and the spring 35 is in pressure contact with the bearing portion 36B of the connecting member 36. At this time, as described above, the notch 36D of the connecting member 36 contacts the stopper 34D to prevent further rotation, and the spring 35 is pressed against the inclined surface 36C. Thus, the urging force of the spring 35 acts in the direction of rotating the connecting member 36 counterclockwise about the third shaft 38. In other words, the second shaft 37 acts in a direction away from the dead center existing on the straight line connecting the first and third shafts 32 and 38.

Therefore, the opening / closing body 20 is reliably held even in this open position.

In the above-mentioned opening / closing operation of the opening / closing body 20, the maximum deflection of the spring 35 is obtained at the time of passing through the dead center where the locked state is released, so the spring force of the spring 35 also acts as a check force for the operation.

 Next, another embodiment of the present invention is shown in FIG.

In this embodiment, a spring as an elastic member is prepared as a separate member in the previous embodiment and is screwed to the fixing member 34, whereas the fixing member 34 is integrally formed with a resin elastic member. It is a thing. That is, on the upper surface of the bearing block 34C, on both sides of the stopper 34D, ribs 34 having a semi-arcuate shape are formed.
E is formed.

It should be noted that the other configurations are the same as those in the previous embodiment and have the same effects, but in this embodiment, the number of parts can be reduced and the number of assembling steps can be reduced.

In the embodiment described above, the stopper 34D that acts when the opening / closing body 20 is opened and closed is formed on the fixed member 34 on the rotation locus of the toggle mechanism. There is no deviation.

[Effects of the Invention] As is apparent from the above description, according to the present invention, since the same elastic member provided on the fixing member urges each of the open and close positions of the opening and closing body, A constant holding force can be obtained and the open / close body can be held securely.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a ventilation device for a vehicle to which the present invention is applied, and FIGS. 2 and 3 are side sectional views showing an embodiment of the present invention, showing an open state and a closed state, respectively. Fig. 4, Fig. 4 is an exploded perspective view of a switchgear according to an embodiment of the present invention, Fig. 5 is a plan view of the same, and Fig. 6 is a sectional view taken along the line AA of Fig. 5 when closed. FIG. 7 is a view showing the same state when it is opened, and FIG. 8 is a perspective view showing another embodiment of the present invention. 20 …… Opening / closing body, 30 …… Opening / closing device, 31 …… Mounting member, 31A
...... Bearing section, 32 ...... First shaft, 33 ...... Handle member (movable member), 34 ...... Fixed member, 35 ...... Spring (elastic member), 36 ...... Coupling member, 36B ...... Bearing section, 37 ... second axis, 38 ... third axis.

Claims (1)

[Scope of utility model registration request] 1. A movable member, one end of which is pivotally attached to one of an opening / closing member and a support member to which the opening / closing member is attached by a first shaft, a fixed member fixed to the other end, and one end of which is a first member. It is pivotally attached to the other end of the movable member by a shaft of 2 and the other end is the third
And a connecting member pivotally attached to the fixing member by a shaft of the movable member, the connecting member and the fixing member constitute a toggle mechanism, the opening and closing device of the opening and closing body at the closing position of the opening and closing body. An opening / closing device for an opening / closing body, comprising: an elastic member that is in pressure contact with the bearing portion of the first shaft and is in pressure contact with the bearing portion of the second shaft at the open position of the opening / closing body.