JP3289013B2 - Floor forming equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a floor forming apparatus using the link Organization, in particular, the passage there is a step or a gap, when infants and the elderly, handicapped or heavy goods vehicle or the like is passing, The present invention relates to a floor surface forming device capable of eliminating the steps and gaps.

[0002]

2. Description of the Related Art In recent years, so-called barrier-free systems have been used in public facilities and the like to eliminate stairs and steps that obstruct the passage of infants and the elderly. For example,
The curb at the boundary between the road and the sidewalk is sloped, stairs are equipped with elevators and escalators, and sidewalks that move on long slopes are installed.

On the other hand, the platform of a railway station, which is a means of public transportation, must be a robust facility that can withstand a large number of passengers, and is usually made of reinforced concrete with a fixed structure.

[0004] In this case, the structures of the train body and platform are designed in consideration of congestion during the morning and evening rush hours. That is, a shock absorber such as a spring that supports the vehicle body from the wheels has a load amount that is proportional to the amount of expansion and contraction, but is usually designed such that the floor surface and the platform of the train are substantially flush with each other when the train is full. Therefore, there are few passengers,
During times when the elderly, children, and the disabled are easy to use, large steps appear on the train floor and platform.

[0005] Due to the nature of the shock absorber which absorbs dynamic shocks and improves ride comfort, it is impossible to eliminate this step. Further, the fact that the diameter of a train wheel is greatly reduced due to wear due to years of use has been one of the causes of a step between a train floor and a platform.

[0006] On the other hand, in an urban area or a mountainous area, it is often necessary to install a platform even in a curved part of a track due to the necessity of laying a railway in a narrow space. In a train configured by connecting a plurality of straight vehicle bodies, in order to avoid contact between the platform and the center side of the vehicle body where the turning radius of the train is minimum,
The side of the vehicle must be separated from the platform tip.

As described above, the steps and gaps between the floor of the train and the platform are indispensable for the safe operation of the train, but pose a danger to the user when getting on and off the train. This is an obstacle for the elderly, children, and disabled people to use the railway.

Therefore, as a countermeasure for eliminating a step and a gap between the floor surface of the train and the platform, a wheelchair getting on / off device for a railway vehicle shown in FIG.
00-040227). In this wheelchair getting-on / off device, the driving force of the air drive unit 51 is taken out by a gear, and the driving force rotates the driving arm 54 fixed to the floor plate with a pin, thereby inclining the slope plate 52 and the crossing plate 53 from the tip of the slope plate 52. Is to be extended.

[0009]

However, as in the above-described wheelchair getting-on / off device, the drive arm 54 fixed to the floor plate is rotated by an arc to incline the slope plate 52 and extend the crossover plate 53. In this case, the movement distance in the left-right direction of the tip of the drive arm 54 becomes smaller than the movement distance in the up-down direction, and there is a restriction that the gap to be eliminated must be smaller than the step to be eliminated. Further, in the above-described wheelchair getting-on / off device, it is difficult to reduce the size of the air drive unit 51 that generates rotational driving force, and the thickness of the device cannot be reduced below a certain limit.

A device for temporarily eliminating a step or a gap existing in a public facility or the like is usually installed later in a public facility that has already been constructed, and civil engineering work for installing the device is inevitable. Accompanying. In order to minimize the time and cost of this civil engineering work, it is important to reduce the volume, especially the thickness, of the device.

In general, tiles having a thickness of about 40 mm are often provided in passages of public facilities or the like. Therefore, if the thickness of the device can be reduced to the thickness of the tiles, the time and cost for civil engineering work are extremely large. It is reduced.

The size of the step or gap to be eliminated differs depending on the location, and the gap may be larger than the step, or may be larger than the gap. Therefore, the structure of the apparatus must be designed so as to be able to cope with the difference in the size of the step and the gap.

It is an object of the present invention to easily eliminate the steps and gaps so that infants, the elderly, the handicapped, heavy vehicles, and the like can safely pass through a general passage having steps and gaps. It is an object of the present invention to provide a floor surface forming apparatus capable of performing the above and a link mechanism used therefor.

Further, the present invention provides a floor surface forming apparatus which can cope with uneven steps and gaps and can reduce the time and cost of civil engineering work when installing the apparatus in a general passage, and a link mechanism used therefor. Is to do.

[0015]

Means for Solving the Problems In order to achieve the above object, one aspect of the present invention is to provide a bottom plate, a lid plate which rotates about one end of the bottom plate to form a slope, and a bottom plate. A first axis disposed on the bottom plate in parallel with the first end, a second axis disposed on the bottom plate in parallel with the first axis and on the opposite side to the one end, and a first axis; An arm for connecting the second axis, a driving body for applying a driving force perpendicular to the first axis, an inclined table attached to the bottom plate having a slope on which the first axis moves, and an inclined table attached to the bottom plate. And a shaft stopper for restricting the movement of the second shaft. When a driving force is applied to the first shaft, the first shaft moves along the slope to push up the lid plate, After the shaft comes into contact with the shaft stopper, the arm rotates about the second shaft,
The first shaft pushes up the lid plate.

According to the present invention, an inclined table having a height less than the thickness of the apparatus is disposed in a thinly constructed apparatus, and the first axis is moved along the inclined surface of the inclined table.
The inclination of the cover plate can be started by a driving body having a small driving force. Therefore, the driving body can be made smaller and the device can be made thinner, and the time and cost for civil engineering work when installing the device can be reduced.

In a preferred embodiment of the present invention, a pair of frames attached at right angles to the first axis and a pair of frames at the front ends of the pair of frames are provided at both ends of the first axis. It has a slide plate to be connected and a pair of third wheels attached to the rear ends of a pair of frames. When a driving force is applied to the first shaft, the driving device moves with the movement of the first shaft. The third wheel moves in contact with the back surface of the lid plate, and the slide plate projects from the front end of the lid plate in parallel with the lid plate.

According to the present invention, by adjusting the length of the arm and the stroke of the driving body, the inclination of the cover plate and the overhang length of the slide plate can be arbitrarily adjusted.
Even if the steps and the gaps of the passage are different in size, the steps and the gaps can be easily eliminated.

In a preferred embodiment of the present invention,
The second shaft is characterized in that the second shaft comes into contact with the shaft stop when the first shaft passes over the upper part of the inclined base.

According to the present invention, the second shaft comes into contact with the shaft stopper when the first shaft passes through the upper part of the inclined base, so that the rotation start angle of the arm can be reduced, and the second shaft can be reduced. The rotation of the arm can be started by the driving body of the driving force.

In a preferred embodiment of the present invention, the first cam is rotatably attached to the first shaft and is attached to the first cam shorter than the length of the arm and the bottom plate.
A first cam stopper with which the first cam comes in contact with the movement of the first shaft, and when a driving force is applied to the first shaft, the first shaft moves along the slope, and the first cam stops. The first cam stopper contacts the first cam stopper to rotate about the first cam stopper, the second shaft contacts the shaft stopper, and the arm rotates about the second shaft. I do.

According to the present invention, the rotation start angle of the first cam can be made smaller than the angle at which the arm starts rotating. Therefore, the driving force required for the driving body can be reduced, the radius of rotation when the first shaft is raised can be reduced, and the movement of tilting the lid plate can be made smooth. Can be.

In order to achieve the above object, another aspect of the present invention has a bottom plate, a lid plate rotatably attached to one end of the bottom plate, and a first wheel, which is parallel to the one end. A second axis disposed in parallel to the first axis and opposite to one end side, and a first axis disposed in the first axis and the second axis. An arm connecting the first shaft, a driving body for applying a driving force at right angles to the first shaft, and a third wheel attached at both ends of the first shaft at right angles to the first shaft and at a rear end. 1
A pair of frames, and a slide plate connecting the pair of frames at a front end of the pair of frames, wherein when a driving force is applied to the first shaft, the first and second wheels move along the bottom plate. And the third wheel moves along the cover plate, and the slide plate projects from the front end of the cover plate.

According to the present invention, depending on the situation at the installation site, whether or not the step and the gap of the passage are eliminated at the same time or only the clearance of the passage is eliminated by attaching and detaching the inclined base and the front wheel stopper. You can easily choose.

[0025]

Embodiments of the present invention will be described below with reference to the drawings. However, such embodiments do not limit the technical scope of the present invention.

FIG. 1 is a conceptual diagram in the case where the floor forming apparatus according to the embodiment of the present invention is installed at the tip of a platform at a railway station. As shown in FIG. 1, there is a step and a gap between the platform tip and the floor of the train 1.

The floor surface forming apparatus 10 of the present embodiment is shown in FIG.
As shown in the figure, it is embedded at the platform tip. Therefore, in a state where the floor surface forming device 10 is not driven,
The upper surface of the floor forming device 10 is flush with the surrounding floor,
A general passenger or the like gets on the train 1 across a step and a gap.

On the other hand, when a disabled person or the like in a wheelchair rides, as shown in FIG.
Of the floor surface forming device 10
The slide plate 41 is extended from the tip of the slide. Therefore, steps and gaps at the tip of the platform are eliminated, and a disabled person or the like in a wheelchair can safely get on the train 1.

FIG. 2 is a perspective view of the floor surface forming apparatus according to the first embodiment of the present invention at the time of storage. In addition, at the time of storage,
This refers to a state in which the floor surface forming device 10 does not form a slope and houses the slide plate 41 therein.

The floor surface forming apparatus 10 of the present embodiment is a thin plate-like body when stored, and is inclined when used.
And a bottom plate 22 for fixing a shaft 36 serving as an axis when the cover plate 12 is inclined by a shaft receiver 37, and left and right frames 21 projecting forward along the cover plate 12 when the cover plate 12 is inclined.
And a slide plate 41 connected to the left and right frames 21 to form an overhanging floor.

FIG. 3 shows the internal structure of the floor surface forming apparatus of the present embodiment when it is housed, and FIG. 3 (1) is a plan view of the floor surface forming apparatus viewed from above with the lid plate 12 and the slide plate 41 omitted. FIG. 3 (2) is a side view thereof.

As shown in FIG. 3A, the left and right frames 21 are connected to each other by an intermediate shaft 29 (first shaft) at a substantially intermediate portion. The intermediate shaft 29 has a plurality of intermediate large wheels 27 such as bearings.
(The second wheel) are mounted at approximately equal intervals,
An intermediate small wheel 28 (first wheel) having a smaller diameter than 27 is attached near the left and right frames 21.

When the intermediate shaft 29 is driven leftward by the cylinder 31, the intermediate small wheel 28 moves along a slope of a later-described inclined table 30. On the other hand, the intermediate large wheel 27 has a diameter that comes into contact with the lid plate 12, and when the intermediate small wheel 28 moves along the slope of the inclined base 30, the lid plate 12 is pushed up and inclined. The intermediate small wheel 28 has a smaller diameter than the intermediate large wheel 27, and does not contact the cover plate 12.

A plurality of arms 26 are rotatably attached to both ends and the center of the intermediate shaft 29, and a front wheel shaft 25 (second shaft) is fixed to the other end of the arm 26. A plurality of front wheels 24 such as bearings are attached to the front wheel shaft 25 at substantially equal intervals. The front wheel 24 moves left and right on the bottom plate 22 when the intermediate shaft 29 is driven left and right by the cylinder 31. Intermediate shaft 29
And the front wheel axle 25 includes an intermediate large wheel 27, an intermediate small wheel 28, and a front wheel 24.
In order to maintain the mutual distance, a tubular fitting (not shown) is inserted. Note that the intermediate shaft 29, the front wheel shaft 25, the arm 26, the cylinder 31, the inclined base 30, and the like constitute a link mechanism.

The rear ends of the left and right frames 21 have rear wheels 34 (third wheels).
Are mounted by a rear wheel axle 35. Rear wheel 34
When the frame 21 is driven left and right by the cylinder 31,
It moves left and right while being in contact with the back surface of 12, and serves as a guide for the frame 21 to move parallel to the cover plate 12.

A cylinder 31 for driving the intermediate shaft 29 is attached to the bottom plate 22 by a cylinder base 33, and is rotatable in a vertical plane around an axis in the cylinder base 33. The other end of the cylinder 31 is connected to an intermediate shaft 29 by a rotatable joint 32.
Attached to. Therefore, the cylinder 31 can apply a propulsive force perpendicular to the intermediate shaft 29 even if the intermediate shaft 29 moves in the vertical direction. The cylinder 31 is air pressure, hydraulic pressure,
Although driven by water pressure or the like, an electric solenoid or the like can be used instead of the cylinder 31.

A shaft 36 serving as a rotation axis of the cover plate 12 is attached to a rear end of the bottom plate 22 by a shaft receiver 37, and a front stop 23 for defining a stop position of the front wheel shaft 25 is attached to a front end of the bottom plate 22. Is attached.

FIG. 4 is a perspective view of the floor surface forming apparatus according to the first embodiment at the time of initial inclination. At the time of initial tilt, the intermediate axis
29 is pushed up to the top of the inclined table 30 by the cylinder 31,
In this state, the cover plate 12 is inclined to some extent about the shaft 36, and the slide plate 41 is also extended to some extent.

FIG. 5 shows the internal structure of the floor surface forming apparatus of the first embodiment at the time of initial tilt. FIG. 5 (1) is a plan view 5 (2) is a side view thereof.

At the time of the initial tilt, the intermediate shaft 29 is driven leftward by the cylinder 31, and the intermediate small wheel 28 is
Pushed up to the top. Therefore, the lid plate 12 not shown
Is pushed up by the middle large wheel 27 and is inclined to some extent about the shaft 36 at the rear of the bottom plate 22. Also, frame 21
Since the rear wheel 34 moves in contact with the back surface of the cover plate 12, the rear wheel 34 moves parallel to the cover plate 12, and extends the slide plate 41 to some extent parallel to the cover plate 12. The front wheel axle 25 comes into contact with the front wheel stopper 23 when the intermediate shaft 29 is pushed up to the upper part of the inclined base 30, as shown in FIG. 5 (2).

FIG. 6 is an explanatory view showing the force acting on the intermediate small wheel 28 when the intermediate small wheel 28 moves along the slope of the inclined base 30. The load applied to the intermediate small wheel 28 is W,
When the inclination angle of 30 to alpha, horizontal force F _h of the load W is represented by _{F h = Wtanα ...... (1)} . Therefore, the push up the small intermediate wheel 28 along the slope of the ramp 30, it is necessary to apply a driving force exceeding the horizontal force F _h from the cylinder 31 to the intermediate shaft 29.

FIG. 7 is a graph showing the relationship between the inclination angle α and the tan α of the inclination table 30.
It is a graph which shows a relationship. As shown in FIG. 7, the inclination angle α is
The smaller the value, the smaller the value of tanα.
Force F _hIs also smaller. For example, when the inclination angle α is 30 °
Is the horizontal component F_hBecomes W / 2, which is necessary for cylinder 31
As for the propulsive force, a force exceeding W / 2 is sufficient.

As described above, in the floor surface forming apparatus according to the present embodiment, the inclined base 30 having a height less than the thickness of the apparatus is arranged in the thinly configured apparatus, and the intermediate small wheel 28 is attached to the inclined base 30. , The inclination of the cover plate 12 can be started by the cylinder 31 having a small driving force.

FIG. 8 is a perspective view of the floor surface forming apparatus according to the first embodiment at the maximum inclination. The maximum inclination means the front wheel axle
25 is a state in which the arm 26 is substantially vertical by contacting the front wheel stopper 23 and the inclination of the cover plate 12 is maximum. In this case, the extension length of the slide plate 41 also becomes maximum.

FIG. 9 is a view showing the internal structure of the floor surface forming apparatus of the first embodiment at the time of maximum inclination, and FIG. 9 (1) is a plan view showing the floor plate forming apparatus viewed from above without the cover plate 12. FIG. 9 (2) is a side view thereof.

As described above, when the intermediate shaft 29 moves leftward due to the driving force of the cylinder 31, the arm 26
The front axle 25 connected to 29 moves leftward along the bottom plate 22. When the front wheel axle 25 contacts the front wheel stopper 23, the arm 26
The driving force of the cylinder 31 starts the rotation around the front wheel stopper 23 as a fulcrum.

With the rotation of the arm 26, the frame 21 and the cover plate 12
Is further inclined, and the slide plate 41 further projects forward. In this case, the rotation of the arm 26 is adjusted by the stroke of the cylinder 31 so that the arm 26 stops in a state where the arm 26 is substantially perpendicular to the bottom plate 22. However, as described later, an arm stopper that comes into contact with the arm 26 when the arm 26 becomes substantially vertical may be provided near the intermediate shaft 29 inside the frame 21 to set the rotation stop angle of the arm 26. it can.

FIG. 10 is an explanatory view showing the force acting when the front wheel shaft 25 is in contact with the front wheel stopper 23 and the arm 26 is rotating around the front wheel shaft 25. Assuming that the load applied to the intermediate shaft 29 is W and the angle between the arm 26 and the perpendicular is θ, the horizontal component force F _h of the load W is expressed as F _h = W tan θ (2). The relationship between the angle θ and the tan θ of the arm 26 is the same as in the case of FIG. 7. For example, if the angle θ is 75 °, the horizontal component _Fh is about four times the load W.

When the angle θ is close to 90 °, that is, when the arm 26
If close to horizontal, although the value and horizontal force F _h of tanθ is extremely large, floor forming apparatus of this embodiment, when the small intermediate wheel 28 is pushed up to the top of the ramp 30, Since the front wheel axle 25 is set to contact the front wheel stopper 23, the rotation start angle θ of the arm 26 can be set to 75 ° or less.

For this reason, the propulsion force required for the cylinder 31 can be reduced to a small value of about four times or less the load W, and the load on the cylinder 31 can be reduced.
If the combined load W of the cover plate 12 and the intermediate shaft 29 is about 20 kg, the propulsive force required for the cylinder 31 can be reduced to about 80 kg or less.

Referring to equation (2) and FIG. 7, the horizontal component F _h
Becomes smaller as the angle θ of the arm 26 decreases, and becomes 1 times the load W when the angle θ is 45 °, and becomes half the load W when the angle θ is 30 °. However, the horizontal component F _h is the angle θ
Is about 75 °, the rate of decrease sharply decreases around 75 °. Therefore, the rotation start angle of the arm 26 is suitably about 75 °.

Next, a measure for ensuring stability when the arm 26 is substantially vertical will be described with reference to FIG. FIG. 11 is an enlarged view of the arm 26 at the time of the maximum inclination of the floor surface forming device.

In the floor surface forming apparatus, when a person or the like passes over the cover plate 12 when the cover plate 12 is at the maximum inclination, the maximum load is expected to be about 200 kg or more. The maximum rotation angle of the arm 26 is defined by the stroke of the cylinder 31, but when the arm 26 reaches the maximum rotation angle, the arm 26 itself remains stable without relying on the propulsion or traction of the cylinder 31. Preferably it is possible.

For this reason, in the floor surface forming apparatus of the present embodiment, as shown in FIG. 11, when the arm 26 reaches the maximum rotation angle, the angle θ that the arm 26 makes with the perpendicular 52 is minus 5 °.
Degree. Also, the angle θ of the arm 26 is set inside the frame 21 so that the arm 26 stops accurately at an angle of minus 5 °.
Arm stopper 51 that comes into contact when the angle becomes minus 5 degrees
Is provided. The minus angle means that the arm 26 is perpendicular
It means the angle when it is rotated beyond 52.

Further, when the front wheel shaft 25 is in contact with the front wheel stopper 23, the front wheel stopper 23 is provided to prevent the front wheel 24 from moving backward.
Is provided with a notch 38. The notch 38 serves as a step for preventing the front wheel 24 from retreating. In this case, by setting the maximum rotation angle of the arm 26 to minus 5 °, the front wheel 24 can be effectively prevented from retreating even with the front wheel stopper 23 having a small step.

The arm stopper 51 does not limit the rotational movement of the arm 26 at all when the angle θ of the arm 26 is before minus 5 °. Further, when the cylinder 31 pulls the intermediate shaft 29 to return the cover plate 12 to the horizontal position, the angle θ of the arm 26 increases, and the front wheel 24 can easily get over the step of the notch 38.

As described above, according to the floor surface forming apparatus of the present embodiment, the inclined base 30 having a height less than the thickness of the apparatus is disposed in the apparatus configured to be thin, and the intermediate small wheel 28 is inclined. By moving the base plate 30 along the slope, the cylinder 31 having a small driving force can start tilting the cover plate 12. Therefore, the device can be made thinner by reducing the size of the cylinder 31, and the time and cost for civil engineering work when installing the device in a general passage can be reduced.

Further, according to the floor forming apparatus of the present embodiment, by adjusting the length of the arm 26 and the stroke of the cylinder 31, the inclination of the cover plate 12 and the overhang length of the slide plate 41 can be arbitrarily set. It can be adjusted, and even if the steps and the gaps of the general passage are different in size, the steps and the gaps can be easily eliminated.

FIG. 12 is a perspective view in which the cover plate 12 and the slide plate 41 are omitted when the floor surface forming apparatus according to the second embodiment of the present invention is stored. Note that the appearance of the floor surface forming apparatus of the second embodiment is the same as that of the first embodiment shown in FIG.

The floor surface forming apparatus according to the second embodiment has the first
The difference from the third embodiment is that the cam 43 is rotatably inserted into the intermediate shaft 29, so that the cover plate 12 is smoothly inclined, and the driving force required for the cylinder 31 is reduced. By providing the rubber cushion 42 on the bottom plate 22,
The point is that vibration of the lid plate 12 during storage is prevented.

FIG. 13 shows the internal structure of the floor surface forming apparatus according to the second embodiment at the time of storage, and FIG. 13 (1) is a plan view seen from above with the lid plate 12 and the slide plate 41 omitted. FIG. 13 (2) is a side view thereof.

As shown in FIG. 13, the structure of the floor forming apparatus of the second embodiment is almost the same as that of the first embodiment, except that the intermediate shaft 29 has a shorter length than the arm 26. Multiple cams
The bottom plate 22 is provided with cam stoppers 44 and 45 for restricting the movement of the cam 43. Furthermore, the bottom plate 22
A rubber cushion 42 for preventing vibration of the cover plate 12 during storage is provided substantially at the center.

FIGS. 14 and 15 show the lid plate 12 and the slide plate 41 when the floor forming apparatus of the second embodiment is initially inclined.
It is the perspective view and structural drawing which omitted O. In the floor surface forming device of the second embodiment, the intermediate shaft 29 is driven by the cylinder 31 and the intermediate small wheel 28 is pushed up to the upper part of the inclined base 30 at the time of initial inclination, as in the first embodiment. Can be For this reason, the lid plate 12 is pushed up by the middle large wheel 27,
The frame 21 extends the slide 41 plate forward.

However, in the floor surface forming apparatus according to the second embodiment, as shown in FIGS.
The cam 43 comes into contact with the cam stopper 45 when pushed up to the upper part of the 30.

FIG. 16 is an explanatory diagram showing the force acting when the cam 43 comes into contact with the cam stopper 45. FIG. As in the case of FIG. 10, assuming that the load applied to the intermediate shaft 29 is W and the angle between the cam 43 and the perpendicular is φ1, the horizontal component force F _h1 of the load W is
As in the equation (2), F _h1 = W tan φ1 (3) The relationship between the angles φ1 and tanφ1 is the same as in FIG.

As shown in FIG. 16, in the floor surface forming apparatus according to the second embodiment, the length of the cam 43 is shorter than the length of the arm 26, and before the front wheel axle 25 comes into contact with the front wheel stopper 23, The cam 43 is disposed so as to contact the cam stopper 45.

For this reason, the rotation start angle φ1 of the cam 43 is
The angle at which the front wheel axle 25 comes into contact with the front wheel stopper 23 and the arm 26 starts rotating can be made smaller than the angle at which the arm 26 starts rotating, and the horizontal component _Fh1 of the load W can be made smaller by the formula (3).

Therefore, the thrust required for the cylinder 31 can be reduced, and the radius of rotation when the intermediate shaft 29 is raised can be reduced. It can be smooth. Note that the cam 43 rotates to a predetermined angle, and the front wheel shaft 25
After abuts on the front wheel stopper 23, as shown in FIG. 10, the arm 26 rotates about the front wheel shaft 25, and the cover plate 12 further tilts.

Since the cam stopper 44 has a triangular cross section, the cam stopper 44 can easily get over when the cam 43 moves to the left. However, when the inclination of the cover plate 12 is returned to the original, the cam stopper 44 moves to the right. The movement of the cam 43 can be restricted, and the cam 43 can be aligned in the leftward direction during storage.

Next, a case where a plurality of cams having different lengths are provided on the intermediate shaft 29 will be described. FIG. 17 is an explanatory view showing the force acting on the second cam 46 when the first cam 43 and the second cam 46 having different lengths are provided on the intermediate shaft 29.

The length of the second cam 46 is set longer than the length of the first cam 43 and shorter than the length of the arm 26.
When the intermediate shaft 29 is being rotated by the first cam 43, FIG.
FIG. 17 shows a state in which the rotation by the first cam 43 has been completed and the rotation by the second cam 46 has been performed. The second cam stopper 48 is configured such that the front wheel axle 25
Before contacting 23, it is arranged to contact the second cam 46.

As shown in FIG. 17, assuming that the load applied to the intermediate shaft 29 is W and the angle between the second cam 46 and the perpendicular is φ2, the horizontal component _Fh2 of the load W is given by the following equation (3). Similarly, F _h2 = W tan φ ₂ (4) The relationship between the angle φ2 and tanφ2 is the same as in FIG.

In the floor forming apparatus of the present embodiment, the rotation by the second cam 46 can be started before the rotation by the first cam 43 is completed and before the rotation by the arm 26 is started. The rotation start angle φ2 of the first cam 43 can be larger than the rotation start angle φ1 of the first cam 43 and smaller than the rotation start angle θ of the arm 26.

[0074] Since this makes it possible to gradually increase the driving force required of the horizontal force F _h and a cylinder 31 of the load W, thereby reducing the burden of the cylinder 31.
Further, the rotation radius of the intermediate shaft 29 can be gradually increased, and the cover plate 12 can be smoothly inclined.

By operating the first and second cams 43 and 46 continuously, the cover plate 12 can be tilted or the cover plate 12 can be tilted.
Can be reduced when storing the data. In addition,
By forming the first and second cams 43 and 46 or the first and second cam stoppers 44, 45, 47 and 48 with synthetic resin, noise can be further reduced.

FIGS. 18 and 19 show the lid plate 12 and the slide plate 12 when the floor forming apparatus of the second embodiment is at the maximum inclination.
It is the perspective view and structural drawing which omitted 41. As shown in FIGS. 18 and 19, in the floor forming apparatus of the second embodiment, the cam 43 is separated from the bottom plate 22 at the time of the maximum inclination, and the front wheel axle 25 is similar to the first embodiment. Comes into contact with the front wheel stopper 23,
The arm 26 is substantially perpendicular to the bottom plate 22.

As described above, according to the floor surface forming apparatus of the present embodiment, the rotation start angle of the cams 43 and 46 can be made smaller than the rotation start angle of the arm 26. Therefore, the driving force required for the cylinder 31 can be reduced, the turning radius when the intermediate shaft 29 is raised can be reduced, and the movement of tilting the cover plate 12 can be made smooth. .

FIG. 20 is a side view of the floor surface forming apparatus according to the third embodiment of the present invention at the time of maximum inclination. The floor surface forming apparatus according to the third embodiment is substantially the same as the second embodiment, except that the rear portion of the cover plate 12 is extended, so that the floor plate forming apparatus can be embedded in a passage having steps or gaps. A smooth slope can be formed by eliminating steps and gaps. Therefore, the floor surface forming device of the present embodiment can be easily transported to a passage having a step or a gap to eliminate the step or the gap.

FIG. 21 is a side view of the fourth embodiment of the present invention, in which the cover plate 12 is omitted.
21 (1) shows a state at the time of storage, FIG. 21 (2) shows a state at the time of initial inclination, and FIG. 21 (3) shows a state at the time of maximum inclination.

The floor surface forming apparatus of the present embodiment has an intermediate shaft 29
Unlike the first embodiment in which the frame 21 is attached to the front wheel shaft 25, the frame 21 is attached to the front wheel shaft 25. Further, the frame 21 is not provided with a slide plate.

The floor surface forming apparatus of this embodiment is similar to the first embodiment in that the arm 31 is driven by the driving force of the cylinder 31.
26 moves and rotates, and an intermediate large wheel 27 attached to an intermediate shaft 29 pushes up the cover plate 12 to form a slope.

In the floor surface forming apparatus of the present embodiment, the frame 21 is attached to the front wheel axle 25, and does not require a force for driving the frame 21 upward. For this reason, since the load applied to the intermediate shaft 29 can be reduced, the load on the cylinder 31 can be reduced, the cylinder 31 can be reduced in size, and the thickness of the device can be further reduced.

In the floor surface forming apparatus according to the embodiment of the present invention, in the above description, the slope is formed by inclining the lid plate 12,
The case where the step of the passage is eliminated has been described,
By sliding without tilting, it is also possible to eliminate only the gap in the passage.

For example, in the floor surface forming apparatus of the first embodiment, by removing the inclined base 30 and the front wheel stopper 23, the cover plate 12 is not tilted, and the slide plate 41 is extended to form the floor surface. However, it is also possible to eliminate the gap in the passage.

FIG. 22 is an explanatory view of a floor forming apparatus according to a fifth embodiment of the present invention for eliminating a gap in a passage. Fig. 22
(1) In the present embodiment, the lid plate 12 and the slide plate 41
FIG. 4 is a plan view of the storage state when viewed from above with omission. Also,
FIG. 22 (2) is a side view at that time, and FIG. 22 (3) is a side view when the slide plate 41 is extended.

As shown in FIG. 22A, the floor forming apparatus of this embodiment is different from the floor forming apparatus of the first embodiment shown in FIG. The stopper 23 is removed. Therefore, when the intermediate shaft 29 is driven to the left by the cylinder 31, the frame 21 moves to the left while the frame 21 remains horizontal, as shown in FIG. Can be eliminated.

As described above, according to the floor surface forming apparatus of this embodiment, the inclined base 30 and the front wheel stopper
By attaching and detaching 23, it is possible to easily select whether to eliminate the step and the gap in the passage at the same time or to eliminate only the gap in the passage. Since the inclined base 30 and the front wheel stopper 23 are screwed to the bottom plate 22, they can be easily attached and detached.

FIG. 23 is an explanatory view of a floor forming apparatus according to a sixth embodiment of the present invention for eliminating a gap in a passage. Figure 23
(1) is a plan view of the storage state viewed from above with the lid plate 12 and the slide plate 41 omitted. FIG. 23 (2) is a side view at that time, and FIG. 23 (3) is a side view when the slide plate 41 is extended.

As shown in FIG. 23A, the floor forming apparatus of the present embodiment is different from the floor forming apparatus of the fifth embodiment shown in FIG. 24, the arm 26 is removed, and a rear wheel 34 is added to the rear of the frame 21. Also in the present embodiment, when the intermediate shaft 29 is driven to the left by the cylinder 31, the frame 21 moves to the left while the frame 21 remains horizontal, as shown in FIG. Thus, the gap in the passage can be eliminated.

In the present embodiment, since the front wheel axle 25, the front wheel 24, and the arm 26 are removed, the weight of the movable part is reduced, and the driving force required for the cylinder 31 can be reduced. Further, since the rear wheel 34 is added, the load applied to the rear wheel 34 can be dispersed, and the movement can be smoothed. Further, as shown in FIG. 23 (3), since the intermediate wheel 61 can move to the tip of the bottom plate 22, a wide gap in the passage can be eliminated.

FIG. 24 is an explanatory diagram in the case where the frame 21 and the slide plate 41 are horizontally extended in the fifth and sixth embodiments. The frame 21 is movable in a guide (not shown) having a U-shaped cross section fixed to the cover plate 12. Therefore, as shown in FIG. 24 (1), when the intermediate shaft 29 is driven to the left by the cylinder 31, the intermediate wheel 61 contacts the bottom plate 22 and moves due to the weight of the slide plate 41, and the rear wheel 34 Moves in contact with the lid plate 12. Therefore, the movement of the frame 21 and the slide plate 41 becomes smooth, and noise during driving can be reduced.

The length of extension of the frame 21 and the slide plate 41 can be adjusted by the stroke of the cylinder 31 as shown in FIG. 24 (1), but as shown in FIG. A shaft stop 62 may be provided on the bottom plate 22 to limit the movement of the intermediate shaft 29. Therefore, according to the floor surface forming device of the present embodiment, the extension length of the slide plate 41 can be easily adjusted according to the situation of the installation site, and the gap in the passage can be eliminated.

The scope of protection of the present invention is not limited to the above embodiments, but extends to the inventions described in the claims and their equivalents.

[0094]

As described above, according to the present invention, an inclined table having a height less than the thickness of the apparatus is arranged in the thin apparatus, and the intermediate wheel is moved along the slope of the inclined table. Thus, the inclination of the cover plate can be started by a driving body having a small driving force. Therefore, the driving body can be made smaller and the apparatus can be made thinner, and the time and cost of civil engineering work when installing the apparatus in a general passage can be reduced.

Further, by adjusting the length of the arm and the stroke of the driving body, the inclination of the cover plate and the length of the overhang of the slide plate can be adjusted arbitrarily. However, the steps and gaps can be easily eliminated.

Further, since the rotation start angle of the cam can be made smaller than the rotation start angle of the arm, the driving force required for the driving body can be made small, and when the intermediate shaft is raised. Can be reduced, and the movement of inclining the cover plate can be made smooth.

Further, by attaching and detaching the inclined base and the front wheel stopper according to the situation at the site where the floor surface forming device is installed,
It is possible to easily select whether to eliminate the step and the gap in the passage at the same time or to eliminate only the gap in the passage.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of a floor surface forming apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view of the floor surface forming apparatus according to the first embodiment of the present invention at the time of storage.

FIG. 3 is a structural view of the floor surface forming apparatus according to the first embodiment of the present invention when housed.

FIG. 4 is a perspective view of the floor surface forming apparatus according to the first embodiment of the present invention at an initial inclination.

FIG. 5 is a structural diagram of the floor surface forming apparatus according to the first embodiment of the present invention at the time of initial tilt.

FIG. 6 is an explanatory diagram of a force acting when the intermediate small wheel moves on the inclined platform.

FIG. 7 is a graph showing the relationship between the inclination angle α and tan α.

FIG. 8 is a perspective view of the floor surface forming apparatus according to the first embodiment of the present invention at the time of maximum inclination.

FIG. 9 is a structural diagram of the floor surface forming apparatus according to the first embodiment of the present invention at the time of maximum inclination.

FIG. 10 is an explanatory diagram of a force acting when the arm rotates.

FIG. 11 is an enlarged view when the arm is substantially vertical.

FIG. 12 is a perspective view of the floor surface forming device according to a second embodiment of the present invention when the floor surface forming device is housed.

FIG. 13 is a structural view of the floor surface forming device according to the second embodiment of the present invention when housed.

FIG. 14 is a perspective view of a floor forming apparatus according to a second embodiment of the present invention at an initial inclination.

FIG. 15 is a structural diagram of the floor surface forming apparatus according to the second embodiment of the present invention at the time of initial tilt.

FIG. 16 is an explanatory diagram of a force acting when the cam is rotating.

FIG. 17 is an explanatory diagram of forces acting on cams having different lengths.

FIG. 18 is a perspective view of the floor surface forming device according to the second embodiment of the present invention at the time of maximum inclination.

FIG. 19 is a structural diagram of the floor surface forming apparatus according to the second embodiment of the present invention at the time of maximum inclination.

FIG. 20 is a side view of the floor surface forming device according to the third embodiment of the present invention at the time of maximum inclination.

FIG. 21 is a side view of a floor forming apparatus according to a fourth embodiment of the present invention.

FIG. 22 is an explanatory view of a floor forming apparatus according to a fifth embodiment of the present invention.

FIG. 23 is an explanatory view of a floor forming apparatus according to a sixth embodiment of the present invention.

FIG. 24 is an explanatory diagram when the slide plate is extended.

FIG. 25 is a schematic configuration diagram of a conventional wheelchair getting on / off device.

[Explanation of symbols]

 10 Floor forming device 12 Cover plate 21 Frame 22 Bottom plate 23 Front wheel stop 24 Front wheel 25 Front wheel shaft 26 Arm 27 Middle large wheel 28 Middle small wheel 29 Middle shaft 30 Inclined table 31 Cylinder 32 Joint 33 Cylinder base 34 Rear wheel 35 Rear wheel shaft 36 Shaft 37 Shaft receiver 38 Notch 41 Slide plate 42 Rubber cushion 43 Cam 44, 45 Cam stopper 51 Arm stopper 61 Intermediate wheel 62 Shaft stopper

Continuation of the front page (56) References JP-A-2000-125573 (JP, A) JP-A-08-07651 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) F16C 11/04 A61G 3/00 501 B61B 1/02 E04F 11/02

Claims (12)

(57) [Claims] 1. A bottom plate, a lid plate that rotates around one end of the bottom plate to form a slope, a first shaft disposed on the bottom plate in parallel with the one end, and the bottom plate A second axis disposed in parallel with the first axis and opposite the one end side; an arm connecting the first axis and the second axis; A driving body for applying a driving force at right angles to the axis of; a slope table attached to the bottom plate, the slope having a slope on which the first axis moves; and a slope attached to the bottom plate, and When a driving force is applied to the first shaft, the first shaft moves along the slope and pushes up the lid plate, and the second shaft is After contacting the shaft stopper, the arm rotates around the second shaft, and the first shaft pushes up the lid plate. Floor forming apparatus. 2. The device according to claim 1 , wherein the first shaft has a first wheel that moves along a slope of the inclined base, and a second wheel that contacts the lid plate. Floor forming equipment. 3. The method of claim 1, connected to both ends of said first shaft, said first pair being mounted at a right angle to the axis frame, the frame of the pair in the front end of the pair of frame And a pair of third wheels attached to the rear ends of the pair of frames. When a driving force is applied to the first axis, the first axis moves. Accompanying this, the third wheel moves in contact with the back surface of the lid plate, and the slide plate moves from the front end of the lid plate,
A floor surface forming apparatus, wherein the floor surface is extended in parallel with the lid plate. 4. The floor surface forming device according to claim 1 , wherein the driving body has one end rotatably attached to the first shaft and the other end rotatably attached to the bottom plate. apparatus. 5. The floor surface forming apparatus according to claim 1 , wherein the second shaft comes into contact with the shaft stopper when the first shaft passes over the inclined table. 6. The floor surface forming apparatus according to claim 1 , wherein the shaft stopper has a step for restricting retreat of the second shaft when the second shaft is in contact. 7. The device according to claim 3 , further comprising an arm stopper attached to a side surface of the frame, the arm stopper restricting a rotation angle of the arm when the arm rotates around the second axis. Floor forming equipment. 8. The device according to claim 1 , wherein the first cam is rotatably attached to the first shaft and is shorter than the length of the arm, and is attached to the bottom plate, and moves with the movement of the first shaft. ,
A first cam stopper with which the first cam comes into contact, wherein when the driving force is applied to the first shaft, the first shaft moves along the slope, and the first cam Abuts on the first cam stopper, rotates about the first cam stopper as a fulcrum, and the second shaft comes into contact with the shaft stopper,
The floor surface forming device, wherein the arm rotates about the second axis. 9. The second cam according to claim 8 , further comprising: a second cam rotatably attached to the first shaft, the second cam having a shorter length than the arm, and a longer length than the first cam. Attached to the bottom plate, with the movement of the first axis,
A second cam stopper with which the second cam comes in contact, and when a driving force is applied to the first shaft, after the first cam comes into contact with the first cam stopper, The floor surface forming apparatus, wherein before the second shaft comes into contact with the shaft stopper, the second cam comes into contact with the second cam stopper and rotates about the second cam stopper as a fulcrum. . 10. A first plate having a bottom plate, a lid plate rotatably attached to one end of the bottom plate, and a first wheel, the first wheel being arranged in parallel with the one end.
A second shaft having a second wheel and being disposed in parallel with the first shaft and on a side opposite to the one end side; a first shaft and the second shaft An actuator for applying a driving force at right angles to the first axis, and a third wheel attached to both ends of the first axis at right angles to the first axis, and a third wheel at a rear end. A pair of frames, and a slide plate connecting the pair of frames at a front end of the pair of frames, wherein when a driving force is applied to the first shaft, the first and second frames are provided.
Wherein the third wheel moves along the cover plate, and the slide plate projects from the front end of the cover plate. 11. A first plate having a bottom plate, a lid plate rotatably attached to one end of the bottom plate, and a first wheel, the first wheel being arranged parallel to the one end.
A driving body for applying a driving force at right angles to the first axis; and a driver attached to both ends of the first axis at right angles to the first axis and having a second wheel at a rear end. A pair of frames, and a slide plate connecting the pair of frames at a front end of the pair of frames, wherein when the driving force is applied to the first shaft, the first wheel is connected to the bottom plate. , The second wheel moves along the cover plate, and the slide plate projects from a front end of the cover plate. 12. The method according to claim 10 or 11, wherein attached to the bottom plate, the floor forming apparatus characterized by having a shaft stop which limits the movement of the first axis.