JPH0751969Y2 - Cover opener - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover opening / closing device for closing an opening of a housing, and more particularly, a cover for moving the cover when it is opened / closed along a movement path inside the housing. Regarding switchgear.

[0002]

2. Description of the Related Art A coupler for a railroad vehicle is installed in an end portion of a leading car. When used, a cover of an opening provided at a tip of the leading car is opened to project the coupler so that the coupler is connected to another vehicle. However, when not in use, the connector is retracted inside the vehicle to close the cover of the opening.

[0003]

[Problems to be Solved by the Invention] However, in a cover using a normal hinge, the supporting structure of the cover is weak because the end portion of the cover is pivotally supported by the hinge, and the cover is torn off due to the influence of wind pressure at high speeds. It may be damaged or damaged. Further, when the cover is opened, the cover opens outward with the hinge serving as a fulcrum, so a space corresponding to the turning radius of the cover is required on the outside of the cover, but it is often difficult to secure this space.

The present invention is intended to solve the above-mentioned problems, and when the cover is opened, the cover does not project to the outside of the housing, so that there is no need for a space for opening the cover outside the housing. Moreover, the cover opening / closing device has a large support strength of the cover and firmly holds the cover even when an external force such as wind pressure is applied during high-speed traveling.

[0005]

In order to achieve the above object, the present invention provides a cover that opens and closes a cover that closes an opening of a housing and moves the opened cover to a storage position inside the housing. In the opening / closing device, the cover is provided with a first follower and a second follower, and the first follower is provided inside the housing along a movement path of the cover from the opening to the storage position. A first guide member for guiding and a second guide member for guiding the second follower are provided, one end of which is pivotally supported by the first follower, and the other end of the link. And a bearing that is rotatably supported at both ends by a bearing provided inside the housing, and a drive unit that rotates the lever around the bearing, and the cover moves on the movement locus. Open and close,
When the cover is opened, almost the entire cover is housed in the housing.

When the cover is closed, the connecting portion between the lever and the link is aligned on a straight line connecting the first follower and the bearing supporting the end portion of the lever, so that the external force applied to the cover is prevented. It is desirable that a mechanism for firmly supporting the cover be formed. Alternatively, when the cover is closed, the follower and the lever are slightly closed rather than the straight line connecting the first follower and the bearing supporting the end of the lever. By using a link mechanism that comes to a position pivoted in the direction, when the pressing force is applied to the closed cover, the lever is rotated in the closing direction of the cover to keep the cover in the closed state. It may be configured to.

[0007]

In order to open the cover by the cover opening / closing device constructed as described above, the lever is rotated in the cover opening direction by the driving means. 1st through the link by the rotation of the lever
Of the follower is pulled and moves along the first guide member. Since the cover moves with the first follower, the second
The follower moves along the second guide member. The moving cover moves while being restricted by the positions of the first follower and the second follower in a posture that does not interfere with other objects installed in the housing.

The action of closing the opened cover is the opposite of the action of opening the cover, and when the cover reaches the position of closing the opening, the joint between the lever and the link is moved to the above-mentioned first position. Since they are aligned on a straight line connecting the follower of No. 1 and the bearing that supports the end of the lever, no leverage is applied to the lever and the link, no matter what a large external force is applied to the cover. That is, the link of the toggle mechanism corresponds to the link angle that exerts the maximum force against the external force, and the cover is securely held in the closed state.

When the cover is closed, the joint between the lever and the link is in a pivotal position slightly above the straight line connecting the first follower and the bearing supporting the end of the lever. When the link mechanism is configured, the pressing force applied to the cover causes the lever to rotate in the closing direction of the cover, so that the cover is securely held in the closed state.

[0010]

1 is a front view of a cover opening / closing device, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is a sectional view taken along line BB of FIG. It is a figure.
As shown in FIG. 2, reference numeral 1 is a streamlined vehicle body that is an example of a housing, and is provided with a cover portion 2 that closes an opening formed at the tip of the vehicle body 1. . Inside the tip of the vehicle body 1, a coupler 3 including an electric coupler 3a and a close contact automatic coupler 3b is installed. Coupler 3
Can move forward and backward in the direction of the arrow in FIG. 2, and is in the solid line position when stored, but protrudes to the chain line position when used.

The upper half of the cover 2 has a curved surface shape following the outer surface shape of the front portion of the vehicle body 1, and the lower half has a flat surface shape following the skirt portion 4 of the vehicle body 1, and is bent in the middle to form an inverted dogleg shape. It has a shape. The relay shaft 5 is provided above the back surface of the cover 2.
Both end portions of a are supported, and the first follower 5 in the form of a cylindrical roller is provided at the left end and the right end of the relay shaft 5a (see FIG. 3), and a pair of left and right cylindrical rollers are provided at the center of the back surface of the cover 2. A second follower 6 in the form of a circle is provided.

On the left and right inner walls 1a inside the vehicle body 1, there are formed a gentle S-shaped groove, a first guide member 7 for guiding the first follower 5, and a gentle "K" shape. A second guide member 8 which is formed in a groove having a groove shape and which guides the second follower 6 is provided (see FIG. 2). One end of a pair of left and right links 9 is rotatably connected to the relay shaft 5a (see FIGS. 3 and 4).
reference).

The other ends of the pair of left and right links 9 are connected to the tips of the pair of left and right levers 10 by pins.
The rotating shaft 11 is supported by a pair of bearings 12 fixed to a bearing spring 12 a provided inside the vehicle body 1, and the base end of the lever 10 is fixed to the rotating shaft 11. A base end portion of a lever 13 is fixed to the center of the rotary shaft 11, and a tip end portion of the lever 13 is a piston rod 1 of a driving means 14 including a cylinder.
4a is rotatably connected (see FIGS. 2 and 3).

With the above construction, when the driving means 14 is operated, the rotary shaft 11 is rotated together with the rotary shaft 11, and the cover 2 is moved together with the first follower 5 driven via the link 9. The moving cover 2 includes a first follower 5 and a second follower 5.
The movement posture is restricted by the follower 6. The car body 1
Support portion 15 fixed to the elastic member 15a provided inside
Is a support member that pivotally supports the drive means 14 (see FIG. 1).

When the cover 2 closes the opening, the lever 10 and the link 9 are aligned in a straight line as shown by a solid line in FIGS. 2 and 5, and a stopper 9a provided at the tip of the link 9 is provided. , Is set to abut on a stopper receiver 16 provided at the tip of the lever 10 (see FIG. 6). When the lever 10 is rotated in the clockwise direction in FIG. 2 by the driving means 14, the cover 2 causes the first follower 5 and the second follower 5 to rotate.
While the movement posture is regulated by the follower 6 of
It moves to the storage position indicated by the chain line along a movement locus that does not interfere with.

Next, the operation of the cover opening / closing device configured as described above will be described. When the cover 2 closes the opening of the vehicle body 1, the cover 2, the link 9, and the lever 10
Is at the position indicated by the solid line in FIG. In this state,
When the driving means 14 is operated to drive the piston rod 14a in the retracted direction, the lever 13 rotates clockwise in FIG. 2, and the lever 10 rotates in the same direction.

The rotation of the lever 10 causes the link 9 to move to the lever 1.
It moves in a bent state with respect to 0 while being pulled by the lever 10, and the first follower 5 pulled by the link 9 moves along the first guide member 7. Due to the cover 2 moving with the first follower 5, the second follower 6
Also moves along the second guide member 8.

The moving posture of the cover 2 is restricted by the first follower 5 and the second follower 6, and the cover 2 moves in the direction indicated by the arrow b while rotating slightly clockwise, and the first follower 5
When is moved at the end of the first guide member, the cover 2 stops at the storage position shown by the chain line in FIG. The movement trajectory of the cover 2 can be determined by the shapes of the first and second guide members 7 and 8.

If the shapes of the first and second guide members 7 and 8 are appropriately set as shown in the embodiment (see FIG. 2), the turning angle of the cover 2 can be reduced.
When the cover 2 moves to the storage position, the opening of the vehicle body 1 is almost fully opened, and the coupler 3 can be projected. Therefore, the vehicle body 1
No special space for opening and closing the cover 2 is required outside.

The closing of the cover 2 is the reverse operation of the opening operation of the cover 2 described above, and when the cover 2 is at the completely closed position, the connecting portion between the link 9 and the lever 10 causes the first follower 5 to move. And the bearing 12 are aligned on a straight line, the cover 5
No matter what a large external force is applied to the link 9, the link 9 and the lever 10 do not generate any turning force. That is, the link 9 and the lever 10 are a kind of toggle mechanism, and when they are aligned in a straight line, the cover 2 is reliably held in the closed state even if a pressing force is applied to the cover 2.

FIG. 6 shows another embodiment of the present invention in which when the cover 2 is closed, the connecting portion between the link 9 and the lever 10 pivots slightly beyond the aligned position. It is in a position (a position slightly rotated in the closing direction of the cover rather than on a straight line). In this case, when a pressing force is applied to the closed cover 2, a slight turning force in the cover closing direction is generated in the lever 10, so that the cover 2 is surely held in the closed state in this case as well.

[0022]

Since the present invention is constructed as described above, it has the following effects. (1) When the cover is opened, since the cover is housed inside the box (body), the problem that a large space must be secured for opening and closing the cover outside the box (body) is solved. did. (2) Since the cover is supported by the first and second followers, the support structure is strong, and the cover may be torn off even if it receives an external force such as wind pressure during high-speed traveling,
There is no risk of damage. Further, when the cover is closed, the link connected to the first follower and the lever connected to the link are arranged in a straight line, so that the cover is surely closed even when the cover receives an external force. Retained.

[Brief description of drawings]

FIG. 1 is a front view of a cover opening / closing device.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is an enlarged view showing details of section C in FIG.

FIG. 5 is an enlarged view showing a main part of FIG.

FIG. 6 is a view corresponding to FIG. 5 in another embodiment of the present invention.

[Explanation of symbols]

 1 Box Body (Car Body) 1a Inner Wall 2 Cover 5 First Follower 6 Second Follower 7 First Guide Member 8 Second Guide Member 9 Link 10 Lever 14 Drive Means

Claims (3)

[Scope of utility model registration request] 1. A cover for closing an opening of a housing is opened and closed.
And, the open cover a mosquito <br/> bar opening and closing device for moving the retracted position in the housing, and the first following element the second following element provided on the cover, of the housing
Movement of the cover from the opening to the storage position
A first guide member for guiding the first follower along the locus.
When the second guide member for guiding the second follower element provided, and links one end to said first follow-up element is rotatably supported, provided inside the other end and the housing of the link a lever having both ends in a bearing which is is rotatably supported, consists of a driving means for rotating the該梃Ko around the bearing, cover the
A cover opening / closing device characterized in that the cover is opened and closed by moving on a movement locus, and when the cover is opened, almost the entire cover is housed in a housing. 2. When the cover is closed, the joint portion between the lever and the link is aligned on a straight line connecting the first follower and the bearing supporting the end portion of the lever , whereby the cover is attached to the cover.
Formed a mechanism to firmly support the cover against external force applied
Cover opening and closing device according to claim 1, characterized in that it is. 3. When the cover is closed, the follower and the lever are slightly smaller than the straight line where the joint between the lever and the link connects the first follower and the bearing supporting the end of the lever.
The link mechanism that comes to the position where it rotates in the closing direction of the cover.
Force is applied to the closed cover.
The cover opening / closing device according to claim 1 , wherein when the lever is opened, a turning force is generated in the closing direction of the cover.