JPH07215120A - Automatic flapper device of elevator for vehicle - Google Patents

Abstract

PURPOSE:To provide an automatic flapper device, which has the simple and strong structure, for an elevator to be provided in a vehicle. CONSTITUTION:Support shafts 3 projecting outward are provided in a boarding part 1a of an elevating platform 1 in parallel with each other with a required space, and a flap left and a flap right levers 2a are supported by the projection end of the front side support shaft 3, and a left and a right grounding operating levers 5, which are respectively provided with a grounding part in the tip thereof, are supported by the projection end of the rear side support shaft 3 so that the left and the right operating levers 5 are integrally turned inside of the flap left and right levers 2a, and an engaging part 2a1 extended from the support part of the flap left and right levers 2a and the tip of the operating levers 5 cross for overlap with each other at a required width. An engaging hole 4 and an engaging shaft 7 to be engaged with each other are provided so as to be freely turned around the front and the rear support shaft 3, and one end of each torsion bar, of which the other end is fixed to a boarding part 1a, is connected for energizing to the left and the right grounding operating levers respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic flapper device for an elevator installed in a vehicle.

[0002]

2. Description of the Related Art Conventionally, a folding type of a vehicle elevator is manually folded to prevent it from falling down, or when a platform plate comes into contact with the ground, an operating force acts on a lever to deploy or descend. Many automatic flapper devices have been proposed.

[0003]

SUMMARY OF THE INVENTION The present invention has been made for the purpose of simple and robust structure, reliable operation and agility.

[0004]

[Problems to be Solved by the Invention] A support shaft is provided at a boarding portion of a lifting platform, which is separated from the front and rear by a predetermined distance and protrudes outward, and a flap left and right lever is provided at a protruding end of a front support shaft. Is supported, and the protruding end of the rear support shaft is
A left and right grounding operation lever equipped with a grounding part at its tip is pivotally supported, and the left and right are integrally and rotatably arranged inside the flap left and right lever, and the engaging part extended from the pivotal support part of the flap left and right lever and the operation. The lever is provided so that it crosses with the required width so that it overlaps with the required width, and the engaging hole and the engaging shaft which are related to each other are provided, and each is rotatably engaged around the front and rear supporting shafts, and one end is mounted. The other end of the torsion bar fixed to the engaging portion is connected and urged to the left and right grounding operation levers respectively, and when the grounding portion of the left and right grounding operation levers separates from the ground, the left and right grounding operation levers are rotated to engage the engaging parts. An automatic flapper device for an elevator for a vehicle, in which the flap left and right levers that are engaged with each other are made to follow so that the flaps automatically stand upright with respect to the riding portion.

[0005]

Since the present invention is constructed as described above, the elevating platform pushes out of the vehicle and descends to land on the road surface. Before the platform touches the ground, the left and right grounding operation levers projecting downward from the underside of the platform's boarding section are pushed up by the road surface about its support shaft to rotate, and the flap left and right levers associated therewith are rotated. Move it and tilt it to the side, and connect the inclined surface to the tip of the boarding part of the lifting platform and the road surface. Therefore, with a wheelchair, etc., eliminate the step between the lifting platform and the road surface,
It is possible to get on and off smoothly. Then, when getting on and the lifting platform rises and moves away from the road surface, the left and right grounding operation levers rotate by the action of the torsion bar, which moves the engagement shaft and rotates the flapper left and right levers along the engagement holes. Then, the flapper automatically stands up around the spindle. When the left and right grounding operation levers collide with the stopper, the rotation is stopped and the flapper is maintained in the upright state. Therefore, there is no risk of the lifting platform falling from the loading part during the lifting operation.

[0006] When the platform is in space, the grounding operation lever is pivoted about the support shaft at the base end until it hits the stopper by the restoring action of the torsion bar, and the tip is lowered at the required inclination angle. The engagement shaft on the operation lever is formed in a shape in which the engagement hole in the flap left / right lever stands up by rotating the flap left / right lever about the support shaft. The hole edge of the joint hole is formed so as to press the engagement shaft of the grounding operation lever toward the center of the support shaft that supports the base end thereof or pull the engagement shaft in the direction opposite to the center of the support shaft, and become in the locked state.

When the grounding operation lever is grounded and rotated, the engagement shaft of the grounding operation lever is formed so that the direction of rotation of the engagement shaft is in contact with the edge of the engagement hole at a shallow intersection angle. Gradually rotate the lever to bring the engagement shaft of the grounding operation lever closer to the support shaft of the flapper lever to expand the rotation angle of the flap left and right levers, and when the platform descends as close to the ground as possible, the flap To ensure smooth and safe deployment of flaps.

Since the left and right grounding operation levers are fixed to the support shaft, the left and right contact and rotate even if there is unevenness on the road surface, and the flap left and right levers, which are also fixed to the support shaft, are engaged to smoothly. In addition, the undulating operation is performed at a predetermined position.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described with reference to the drawings showing an example of an embodiment. Reference numeral 1 is an elevating platform, of which a support shaft 3 is horizontally supported by left and right side plate portions 1a1 and 1a1 of the loading portion 1a. The left and right ends are the left and right side plate portions 1a
1, 1a1 projecting outwardly, the middle part of the flap left and right levers 2a, 2a is welded to the projecting end of the support shaft 3, and the flap main plate 2b is passed over the upper part of the support lever 3 to center the flap 2 around the support shaft 3. It is pivotally supported.

The grounding portions 5a and 5a, which are provided by being bent laterally, are provided at the outward projecting ends of the support shaft 6 that is supported by being passed over from the outer edge of the boarding portion 1a to the left and right side plate portions 1a1 and 1a1 having the required width inside. The base ends of the left and right grounding operation lever plates 5 and 5 each having a front end are fixed, and the tip ends thereof are arranged inside the flap left and right levers 2a and 2a. The plates 5 and 5 are integrally and rotatably supported.

The engaging left and right levers 2a and 2a are provided below the intermediate shaft supporting portion in engaging portions 2a1 and 2a1, and engaging holes 4 and 4 are formed in the engaging portions 2a1 and 2a1. The engaging shafts 7, 7 attached to the tip ends of the left and right grounding operation levers 5, 5 are inserted through the left and right grounding operation lever plates 5,
The left and right levers 2a and 2a of the flap are pivoted to the spindle 3
It is engaged so as to be rotatable around.

A mounting plate 10 for fixing one end bent portions 8a, 8a of the torsion bars 8, 8 having a required diameter and a required length to the lower surface of the central aggregate 9 at the center of the loading portion 1a with screws 11. And the torsion bars 8, 8 are arranged on both sides along the support shaft 6, and the other end bent portions 8b, 8b bent forward by a required length are respectively grounded on the left and right grounding operation levers 5, 5. The left and right ground operation levers 5 and 5 are connected to the portions 5a and 5a, respectively, and are constantly urged so as to separate the leading end downward from the boarding portion 1a around the support shaft 6, and the left and right grounding operation levers 5 and 5 are rotated to engage the engagement portion 2 with each other.
flap left and right levers 2a, 2a engaged with a1, 2a1
The flap left and right levers 2a and 2a are provided so as to automatically stand up relative to the riding portion 1a.

Although not shown, the left and right grounding operation levers 5 and 5 may be coil springs instead of the torsion bars 8 and 8.

Reference numeral 12 denotes a stopper, which is arranged on the outer surface of the bases of the left and right side plate portions 1a1 and 1a1 of the boarding portion 1a of the lifting platform 1 so as to correspond to the rear ends of the left and right grounding operation levers 5 and 5, and the lifting platform 1 from the ground. When separated, the rear ends of the left and right grounding operation levers 5, 5 which rotate by the action of the torsion bars 8, collide with each other to stop the rotation and hold the automatic flap 2 in the upright state.

Engagement holes 4, 4 in the flap left and right levers 2a, 2a, when the lifting platform is in space,
The left and right grounding operation levers are rotated by the return action of the torsion lever about the support shaft 6 at the base end until they hit the stopper 12, and the tip is lowered at a required inclination angle. Therefore, the flap left and right levers 2a, 2a are supported by the support shafts. The shape which rises by rotating about 3 (as shown in FIG. 5), that is, the lower half shape 4a
Formed so that the rotation direction about the center of the support shaft 6 is pressed or pulled with respect to the center of the support shaft 6, and the upper half shape 4b is formed so as to expand the rotation of the left and right grounding operation levers 5, 5. Is.

[0016]

As described above, according to the present invention, when the platform is in the space, the left and right grounding operation levers are rotated about the support shaft of the base end until they hit the stopper by the return action of the torsion lever, and the required inclination angle is obtained. The tip is lowered downward, and at this time, the engagement shaft on the left and right grounding operation lever is formed in a shape in which the engagement hole in the flap left and right lever is raised by rotating the flap left and right lever about the support shaft. Moreover, when the flap left / right lever is attempted to rotate, the hole edge of the engagement hole pushes or pulls the engagement shaft of the left / right grounding operation lever toward the center of the support shaft supporting the base end of the engagement shaft. The flapper is formed so as to be in a locked state to ensure the safety of the flapper during the lifting and lowering of the platform.

Further, when the left and right ground operation levers are grounded and rotated, the rotation direction of the engagement shaft of the left and right ground operation levers is initially formed so as to come into contact with the hole edge of the engagement hole at a shallow intersection angle. , Gradually rotate the flap left and right levers, and when the platform descends the last few centimeters, bring the engagement shaft of the left and right grounding operation levers closer to the support shaft of the flap left and right levers to expand the rotation angle of the flap left and right levers. The flaps are designed for safe and smooth operation.

The left and right grounding operation levers are fixed to the support shaft,
Further, since the flap left / right lever is also fixed to the support shaft, the left and right communicate with each other and rotate even if there is unevenness on the road surface, so that the flap can be smoothly moved up and down to a predetermined position.

[Brief description of drawings]

FIG. 1 is a side view of the automatic flapper of the present invention in a standing state.

FIG. 2 is a side view of the automatic flapper of the present invention in a prone state when the lifting platform is also grounded.

FIG. 3 is a partial front view of one side portion as seen from the leading end of the boarding portion of the present invention.

FIG. 4 is a bottom view of the lifting platform boarding portion and the automatic flapper of the present invention.

FIG. 5 is an operation explanatory view of a main part mechanism of the automatic flapper of the invention.

[Explanation of symbols]

 1 Lifting platform 1a Riding part 1a1 Left and right side plate part of the riding part 2 Flap 2a Flap left and right lever 2a1 Engaging part 2b Flap main plate 3 Spindle 4 Engagement hole 4a Lower half shape 4b Upper half shape 5 Left and right grounding operation lever 5a Grounding Part 6 Support shaft 7 Engaging shaft 8 Torsion bar 8a One end bent part 8b Other end bent part 9 Central aggregate 10 Mounting plate 11 Screw 12 Stopper

Claims (2)

[Claims] 1. A support shaft, which is spaced forward and backward at a predetermined interval and which projects outward, is provided at a boarding portion of the lifting platform, and a flap left and right lever is pivotally supported at a projecting end of the front support shaft. A left and right grounding operation lever having a grounding portion at its tip is pivotally supported on the protruding end of the rear support shaft, and the left and right levers are integrally rotatable inside the flap left and right lever. The engaging portion extended from the shaft supporting portion and the tip end portion of the operating lever are provided so as to cross-overlap with each other for a required width, and mutually related engaging holes and engaging shafts are provided, each of which is centered on the front and rear supporting shafts. , The other end of the torsion bar, one end of which is fixed to the riding part, is biased to the left and right grounding operation levers respectively, and when the grounding part of the left and right grounding operation levers is separated from the ground, Rotate the grounding operation lever to engage the engagement part. An automatic flapper device for an elevator for a vehicle, which is provided so that the lap left and right levers follow and the flap automatically stands up with respect to the riding section. 2. A support shaft, which is spaced apart in parallel to the front and rear at a predetermined interval and projects outward, is provided on the left and right side plate portions of the boarding portion of the lifting platform, and the front end of the support shaft has a projecting end.
The bases of the flap left and right levers that connect and connect the flap main body are pivotally supported, and are pivotally supported around the front support shaft, and the grounding portion is provided at the protruding end of the rear support shaft. The base end of the left and right grounding operation lever plate provided at the tip is pivotally supported, and the left and right are integrally pivotally supported inside or outside the flap left and right levers, and extended from the pivotal support part of the flap left and right levers. The engaging portion and the tip end portion of the ground operation lever are provided so as to overlap each other with a required width, and an engaging hole is formed in the engaging portion of the flap left and right levers, and the tip end of the ground operation lever is provided in the engaging hole. Insert the engaging shafts attached to the parts, rotatably engage each with the front and rear supporting shafts as the center, and connect the other end bent part of the torsion bar that has one end fixed to the lower surface of the loading part to the left and right ground Connected to the operation levers respectively, and left and right contact from the boarding section centering on the rear support shaft A flap left / right lever that constantly urges the tip of the operation lever to move downwardly and rotates the left / right grounding operation lever when the grounding portion of the left / right grounding operation lever separates from the ground to engage with the engaging portion. An automatic flapper device for an elevator for a vehicle, wherein the flap left and right levers are provided so as to automatically stand up relative to the riding section.