CN1146422A

CN1146422A - Travelling staircase capable of carrying wheelchair

Info

Publication number: CN1146422A
Application number: CN96111478A
Authority: CN
Inventors: 三村一美; 关秀明
Original assignee: Hitachi Ltd; Hitachi Mito Engineering Co Ltd
Current assignee: Hitachi Ltd; Hitachi Mito Engineering Co Ltd
Priority date: 1995-08-02
Filing date: 1996-08-02
Publication date: 1997-04-02
Also published as: GB9615136D0; JPH0940346A; GB2303835B; GB2303835A; HK1005907A1; KR970010625A

Abstract

In order to load a wheelchair capable of preventing a car stop from lowering without complicating constitution. An escalator device in this invention comprises a car stop protruding on the wheelchair-loading face and a turning link for driving the car stop, wherein the protruded dimension of the car stop at the dead point of the turning link is maximized.

Description

The escalator of energy carrying wheelchair

The present invention relates to a kind of escalator of energy carrying wheelchair.The invention particularly relates to a kind of escalator of energy carrying wheelchair, this escalator has a wheel retainer that can put in or stretch out the plane of placing wheelchair.

Energy escalator carrying wheelchair, that have a wheel retainer in the past, a wheel retainer that can put in or stretch out the plane of placing wheelchair is arranged, so that carrying wheelchair safely, this escalator discloses in the 5-No. 201683 Japanese Patent Application to some extent.

In above-mentioned prior art, if the wheel retainer that stretches out the plane of placing wheelchair is applied a downward load, if the wheel retainer does not have a special lockout mechanism to descend possibly, consequently, the wheel retainer has lost its function, therefore needs to install a kind of special lockout mechanism.Yet, this special lockout mechanism has been arranged, will produce the complicated problem of assistive drive mechanism that makes the wheel retainer.

In order to solve the aforementioned problems in the prior, an object of the present invention is to provide a kind of escalator of energy carrying wheelchair, this escalator also can stop the wheel retainer to descend under the situation that does not have complicated structure.

Say that simply the escalator of the carrying wheelchair of design can achieve the above object according to the present invention, this escalator comprises: a plane of placing wheelchair, and there are a plurality of horizontal stepped plates on this plane; A wheel retainer that stretches out the plane of placing wheelchair; Bull stick with a wheels retainer.Wherein the wheel retainer length of stretching out when bull stick forwards first dead center to is for the longest.

Adopt said structure, by bull stick wheels retainer, when bull stick arrived the dead point, the extension elongation of wheel retainer was the longest.Even the wheel retainer is applied a downward load, the wheel retainer is being supported at first dead center.Stop the wheel retainer to descend thus.This means does not need to use and stretching out of wheel retainer mechanism synchronous, locking wheel retainer.

Fig. 1 is the longitudinal sectional view of first embodiment of the invention, and step shown in the figure has a wheel retainer that can load the escalator of a wheelchair in this step.

Fig. 2 is a partial elevation view, and it shows the situation of drive configuration before operation of the wheel retainer among Fig. 1.

Fig. 3 is a partial elevation view, and it shows the situation of drive configuration after operation of the wheel retainer among Fig. 1.

Fig. 4 is a lateral plan, and it shows the total of the escalator of the present invention of energy carrying wheelchair.

Fig. 5 is an enlarged drawing, and it shows the wheelchair on the step of being placed among Fig. 4.

Fig. 6 is the partial elevation view of second embodiment of the invention, and its corresponding diagram 3 shows the wheel retainer of the escalator that can load a wheelchair.

Fig. 7 is the partial elevation view of third embodiment of the invention, and its corresponding diagram 3 shows the wheel retainer of the escalator that can load a wheelchair.

Fig. 1 to Fig. 5 describes the first embodiment of the present invention below in conjunction with accompanying drawing.

One main frame 1 is arranged on upstairs and downstairs up and down between the floor.In main frame 1, a plurality of step chain steps 3 of circulating motion again and again that pass through have been installed, guardrail or retaining wall 4 place on two edges of step 3 along the sense of motion of step 3, and both sides handrail 5 is along guardrail or retaining wall 4 and step 3 same moved further.

The one special step group 6 that can load a wheelchair is thereon arranged in a plurality of steps 3.Special step group 6 is made up of the second step 8 of a first step 7, contiguous first step 7 downsides and the 3rd step 9 of contiguous second step 8 downsides.The stepped plate 8F and the 9F of second step 8 and the 3rd step 9 can move up.

In service at common not carrying wheelchair has the poor of height between the adjacent step 7,8,9 in escalator, the same with the step 3 of common stair.And in service at carrying wheelchair, the stepped plate 8F of second step 8 in the ladder and the 3rd step 9 and 9F are that the stepped plate 7F of benchmark and step 7 keeps flushing with the stepped plate 7F of the 7th step always.

In other words, be mounted with the in service of wheelchair, three steps 7 to 9 are at U.L upstairs and downstairs flush during D.L.Certainly, stepped plate 7F, 8F and 9F also flush.If three steps 7 to 9 move by the stepped plate 7F, the 8F that flush and 9F level are connected into row, then the second and the 3rd step 8 and 9 stepped plate 8F and 9F rise on the back of the stepped plate 7F of first step 7, flush with maintenance.Step of stepped plate 8F rising of second step 8, and three steps of the stepped plate 9F of the 3rd step 9 rising.Along with the rising of the stepped plate 9F of the 3rd step 9, between stepped plate 9F and stepped plate 3D thereafter, form the neutral of a broad.In this neutral, be provided with three riser R1, R2 and R3.

Wheelchair, for example electro-tricycle 19, and upstairs this wheelchair is loaded on the plane of U.L or the carrying wheelchair that just formed by stepped plate 7F, 8F and 9F during D.L downstairs.A higher side on the plane of carrying wheelchair is facing to top step 3U, and electro-tricycle 19 just can not move forward like this.Yet therefore the downside on the plane of carrying wheelchair, just can not avoid moving of electro-tricycle 19 fully on the 3D that gets out of a predicament or an embarrassing situation.Passenger's unsettled motion might cause that electro-tricycle 19 jeopardously falls among the 3D that gets out of a predicament or an embarrassing situation in the wheelchair.

Be landing or the overturning of avoiding electro-tricycle 19, in the stepped plate 9F of the 3rd step 9, be provided with a wheel retainer 10.Shown in Fig. 1,2 and 3, wheel retainer 10 is made up of a base portion 11 and a plurality of parallel fulcrum lever 12 that is bearing on the base portion 11.A plurality of parallel fulcrum levers 12 stretch out from the lip-deep a plurality of tread plate 9C of stepped plate 9F.

The wheel retainer 10 of Xing Chenging as mentioned above is directed into the rear side of stepped plate 9F in the direction of stretching out by a guide (figure does not show).

In addition, the base portion 11 of wheel retainer 10 has superincumbent lobe plate 13A of a pair of horizontal installation and 13B.This is to being equipped with the diameter roller 14 more smaller than the spacing of

lobe plate

13A and 13B among lobe plate 13A and the 13B.This roller 14 is installed in rotation on an end of bull stick 15.Fix one 16 on the other end of bull stick 15.Axle 16 by support 17 rotatably supports that are arranged on stepped plate 9F rear side.

For axle drive shaft 16, one driving motors 18 are attached thereto.When the end of the pole 12 of wheel retainer 10 was under the surface of stepped plate 9F, bull stick 15 was around the S. A. of axle 16 lateral inclination farthest.

The operation of the escalator that has loaded wheelchair as mentioned above is described below.

At first, wheelchair 19 will be carried on that on even keel is arranged on U.L upstairs or downstairs on three steps 7,8 and 9 stepped plate 7F, 8F and 9F of D.L.If the starting switch of carrying wheelchair (figure does not show) forwards conduction position to, then power supply is to driving motor 18 supply electric power.Driving motor 18 axle drive shafts 16, axle 16 make the bull stick of fixing on it 15 rotate at the pivot center of the described direction of arrow of Fig. 2 around axle 16.

Bull stick 15 makes the roller 14 that is contained in its end rotationally upwards be pressed onto lobe plate 13A the position of using long and two-short dash line 13A ' expression among Fig. 2.Lobe plate 13A upwards promotes to form with it the wheel retainer 10 of one.If roller 14 just in time arrives on the axle 16, or arrive first dead center, then bull stick 15 stops operating.The pole 12 of wheel retainer 10 reaches the length of the maximum of representing with long and two-short dash line 12 ' Fig. 1 and 2 from the surface of stepped plate 9F.At this moment, be supplied to the electric power of driving motor 18 just to be cut off, escalator starts subsequently.

Under the sort of state, even apply a downward load to the pole 12 ' of stretching out, this pole 12 ' is being supported by axle 16, so pole 12 ' can not move down.Reached the locking function of the wheel of electro-tricycle thus.

If make the pole 12 ' of stretching out stepped plate 9F get back to original position again, step 7 to 9 upstairs U.L or downstairs the D.L place stop, or electro-tricycle 19 should leave step 7 to 9.This moment, power supply provided electric power to driving motor 18 again.Driving motor 18 rotates bull stick 15 with the direction of arrow among Fig. 3.Bull stick 15 makes the roller 14 downward belling wheel plate 13B that are contained in its end rotationally.Lobe plate 13B shifts the wheel retainer 10 that forms one with it onto represent with long and two-short dash line among Fig. 3 position.So just stretching out the stretching out below pole 12 ' pulls to of stepped plate 9F surface.Operation when after this, escalator just returns to usually carrying wheelchair not.

Aforesaid, the first embodiment of the present invention is set up with a kind of simple structure, promptly rotates bull stick 15, stops at first dead center then.This structure can stop pole 12 to descend.This means the decline that does not need just can stop pole 12 with special lockout mechanism.

Fig. 6 illustrates the second embodiment of the present invention.Second embodiment is except when wheel retainer 10 when rising, the end of bull stick 15 forwards to above a bit of position apart from δ of first dead center, and be provided with locating part 20, with restriction bull stick 15 move to till this position outside, basic structure is identical with first embodiment.

In this state, if the pole 12 ' of stretching out stepped plate 9F is applied a downward load, load is by the effect of lobe plate 13A and roller 14, makes the end of bull stick 15 originally should be than rotating in the longer scope of distance δ.But locating part 20 has limited bull stick 15, makes it and can not rotate again, so bull stick 15 can not rotate.Therefore, wheel retainer 10 can not descend.It should be noted that because bull stick 15 is contacting with locating part 20 above a bit of position apart from δ of first dead center, bull stick 15 can not reverse, so very safe.

In a second embodiment, need not the decline that special lockout mechanism just can stop bull stick 15, this point is the same with first embodiment.

The first and second above-mentioned embodiment are configured to have double-

type lobe plate

13A and 13B in a side of wheel retainer 10, in a side of support 17 bull stick 15 are arranged.But also can be conversely, are bull sticks 15 and be double-

type lobe plate

13A and 13B in wheel retainer 10 1 sides in support 17 1 sides, the effect that is provided is identical.

If bull stick 15 is arranged on a side of wheel retainer 10, as shown in Figure 7, bull stick 15 can have a miniature gears 21 that is installed in rotation on its end, support 17 can have one can with these miniature gears 21 ingear tooth bars 22.

Adopt aforesaid drive configuration, a driving motor (figure does not show) should drive bull stick 15 or miniature gears 21, makes miniature gears 21 turn to the position of long and two-short dash line on tooth bar 22.Bull stick 15 rises to plumbness at lower dead point from heeling condition.At this moment, the pole 12 ' of wheel retainer 10 is stretched out the length of stepped plate 9F for the longest.In this state, even pole 12 ' is applied a downward load, pole 12 ' is being supported by tooth bar 22 by miniature gears 21, descends to stop wheel retainer 10.

As mentioned above, the present invention need not the escalator that complicated mechanism just can realize stoping the wheel retainer decline of carrying wheelchair.

Claims

1. the escalator of a carrying wheelchair comprises: one places the plane of wheelchair, and there are a plurality of horizontally disposed stepped plates on this plane; One stretches out the wheel retainer on the plane of placing wheelchair, and described escalator also comprises:

The bull stick of one wheels retainer,

It is characterized in that at the dead point of described bull stick, the extension elongation of wheel retainer is for the longest.

2. the escalator of a carrying wheelchair comprises: one places the plane of wheelchair, and there are a plurality of horizontally disposed stepped plates on this plane; One stretches out the wheel retainer on the plane of placing wheelchair, and described escalator also comprises:

The bull stick of one wheels retainer,

It is characterized in that at the dead point of described bull stick, the extension elongation of wheel retainer is for the longest, and

A locating part that makes bull stick stop is arranged in the position of crossing the dead point.

3. the escalator of carrying wheelchair as claimed in claim 1 or 2 is characterized in that,

Bull stick by being fixed on the support rotatably support that constitutes one rear side in some stepped plates of placing the wheelchair plane.

4. as the escalator of the carrying wheelchair of claim 1 or 2, it is characterized in that,

Bull stick by wheel retainer rotatably support.

5. as the escalator of the carrying wheelchair of claim 1 or 2, it is characterized in that,

Bull stick has the roller that is rotatably supported in the one end, and this roller is contained between the pair of cams plate that is horizontally installed on the wheel retainer.