JP3937390B2 - Leveling slope - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a slope for eliminating a step provided with a function of adjusting the length of a slope that is used across a step when a wheelchair or the like passes through a portion having a step.
[0002]
[Prior art]
Conventionally, in order to pass a stepped portion of a building or the like with a wheelchair or the like, a means for eliminating the step using a slope extending over the step is known. Various stretchable slopes using members have been developed.
[0003]
This type of slope is a slidable combination of a large rail member located on the outside and a small rail member located on the inside as a length adjusting means, and the length is changed by sliding each other. These are fixed to each other by fixing means such as bolts and screws at the changed length positions.
[0004]
On the other hand, in the utility model registration No. 3057346, the inner small rail member is provided with a trapezoidal stopper on the tip end side to be inserted into the outer large rail member at the end of the side wall, and the stopper is a large rail. The slope length is fixed by making it difficult for the large rail member and the small rail member to move relative to each other by the frictional resistance generated by contact with the inner wall of the insertion portion of the member.
[0005]
[Problems to be solved by the invention]
In the conventional technology as described above, if the length of the sliding slope is changed, it may be firmly fixed with screws, bolts, nuts, etc. When using it in various places, adjust the length by removing the screw etc. one by one, and when it reaches the appropriate length, tighten the screw and bolt again to fix it, which is very troublesome and inconvenient. It is.
[0006]
On the other hand, the conventional fixing technology that uses frictional resistance has the advantage that the slope can be adjusted to an arbitrary length, but it depends only on the frictional force of the stopper, so that the fixed state tends to become unstable. is there. That is, there is a possibility that the length may be changed without being kept in a fixed state, and if such a length change occurs, a serious accident may occur.
[0007]
In addition, rubber with a large frictional force may be used in consideration of the frictional properties of the stopper, but conversely there is a disadvantage that the rubber material is deteriorated and cheap, or the rubber part is damaged during use and the frictional force is reduced. It is also expected to decrease compared to the initial production (design intention). In such a case, the stable fixed state of the slope cannot be maintained over a long period of time, and the safety and reliability for the user may be significantly lowered, which is very dangerous. In addition, for example, when rain or the like enters the contact portion when used outdoors, there is a risk that the frictional force is reduced and the rail is easily displaced.
[0008]
In view of such circumstances, it is an object of the present invention to provide an apparatus that can easily perform a length adjustment operation. Furthermore, an object of the present invention is to provide a device that can quickly adjust the length and can securely hold a fixed state. In addition, an object of the present invention is to provide an apparatus that can be easily carried and can be changed in length.
[0009]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, according to the invention described in claim 1, at least two kinds of large and small rail members having a substantially U-shaped cross section opened upward are provided, and the small rail is provided inside the large rail member on the outside. A member is slidably inserted, and any one of a plurality of adjustment holes provided at a predetermined interval in the sliding direction of any one of the rail members, and an insertion hole provided in the other rail member; At the same time, a fixing pin is inserted to fix the large rail member and the small rail member, and the small rail member is relatively slid to change the adjustment hole for inserting the fixing pin into a different adjustment hole. Configures rail-like slopes with different overall lengths And The fixing pin comprises an urging means for urging the fixing pin from the insertion hole side to the adjustment hole side, and an open holding means capable of holding the fixing pin in a state of being pulled out from the adjustment hole; On the outer surface of the side wall portion of the large rail member, there are provided an operating portion of the holding means for holding the fixing pin and a handle member. In the slope for level difference cancellation, The rail member is of a substantially lip groove steel shape having a flange portion projecting inwardly from the upper portion of the side wall portion, and has a shape with rounded corners covering the end portions of the side wall portions located at both ends of the slope. Protective member It has a configuration with.
[0010]
The rail member of the present invention has a substantially U-shaped structure with an open top, and its inner bottom surface is a running part such as a wheel. It becomes a guide structure at the time of wheel running and can prevent the wheel from dropping off.
[0011]
This rail member is combined with at least two types of large and small, a small member is inserted into a large member, and each is connected so as to be relatively slidable in the longitudinal direction. The connection structure is not particularly limited, and any connection structure may be used as long as it has a necessary strength to maintain the state when a wheelchair or the like is placed on the upper part.
[0012]
The rail member itself is not limited to two types, and three or more types may be configured to be relatively slidable. As a result, it is possible to make the overall length in the reduced state compact or to increase the adjustable length (changeable range), but the number of stages and the length are arbitrarily determined. That's fine.
[0013]
The total length is changed by relatively sliding the rail members. However, when the lengths to be used are determined and the mutual rail members are fixed, insertion holes and adjustment holes provided in the respective rail members are used. Are aligned, and a fixing pin is simultaneously inserted therein and engaged, thereby preventing relative movement of the rail members and fixing the overall length.
[0014]
This fixing pin has a structure that is fitted into the adjustment hole and the insertion hole at the same time, and fixes the rail member, and has a strength that can maintain the fixing structure even when a wheelchair or the like is placed. Is.
[0015]
The insertion hole and the adjustment hole are provided at positions where the rail members face each other and can be aligned with each other when they are slid. For example, a side wall portion or a bottom surface portion of a substantially U-shaped cross section may be used, but a place where the fixing pin and its holding means do not get in the way when the wheel runs on the inner bottom surface is preferable. This is to prevent the passage of the wheels from being hindered, the wheels from colliding with each other, the fixing pins and the holding means being broken, or the fixing means being released to slide.
[0016]
Since the fixing pin is always held in a state of being biased from the insertion hole side to the adjustment hole side by the biasing means, the fixed state (the state fitted in the adjustment hole and the insertion hole) is securely held. The fixed state is held in a very stable state.
[0017]
In addition, since the holding means is provided, when the length is changed, the rail members are slid relative to each other while the engagement state with the mutual holes of the fixing pins is released. For example, the rails can slide easily.
[0018]
For example, when the fixing pin is pulled out from at least the adjustment hole and slid against each other against the biasing means without the opening holding means, and the fixing pin moves to the next adjustment hole adjacent in the sliding direction, the fixing pin is attached at that location. It is fitted by force means. For this reason, when it is desired to change the length significantly, the pulling out of the fixing pin from the adjustment hole and the movement to the next adjustment hole must be repeated.
[0019]
However, according to the present invention, since the engagement state with the adjustment hole of the fixing pin can be released by the open holding means, the adjustment hole can be located at any desired position regardless of the adjacent adjustment hole. It is also possible to slide the length of a plurality of steps at a stretch.
[0020]
As described above, according to the present invention, the fixed state of the length is reliably maintained by the fixing means using the fixing pin, and the safety of the user is high. Furthermore, since the holding means of the fixing pin includes the urging means, the position fixing after the length adjustment can be easily fixed by easily fitting the fixing pin into the adjustment hole by the urging means. In addition, the rail members can be easily slid relative to each other without being affected by the location of the adjacent adjustment holes, even when the length is greatly changed (when a plurality of adjustment holes are skipped) by the holding means of the fixing pins. be able to.
[0021]
Also, in order to further facilitate the handling and storage of the slope for removing the step, the fixing pin is located at the position where the entire length of the slope is the shortest (the position where the mutual rail members are interpolated to the shortest position). It is desirable to open an adjustment hole at the fitting position. Further, it is preferable that the mutual rail members are slid in the lengthwise direction so that at least one position is provided at a position corresponding to the maximum length position and at a plurality of locations between them at appropriate intervals.
[0022]
As a result, slopes having different lengths corresponding to steps having different heights can be provided by changing the length easily and in a timely manner. For example, the inclination of the slope suitable for wheelchair traffic is about 10 degrees. Therefore, depending on the height of the step, slopes with different lengths are required to cope with this inclination. However, according to the present invention, even if the steps are different, the length can be changed easily and quickly. Therefore, there is an advantage that a slope having an appropriate angle can be provided according to various places.
[0024]
In the present invention, since the fixing pin opening and holding means is provided at least on the outer surface (outside) of the side wall portion of the rail member, when the length of the slope is adjusted, the operating portion is visually recognized from the outside. Is easy. For this reason, even when the length is changed after installation, the user can easily recognize the operation unit, and the slope length adjustment operation can be performed easily and quickly.
[0025]
In addition, when the handle is provided on the outer surface of the side wall portion, if the operating portion of the open holding means is provided on the same side as the handle, the operation can be performed while holding the handle with one hand, so that the operation for changing the length can be further performed. Improves. Furthermore, since it is provided on the outer surface of the side wall, it does not interfere with the traveling of the wheel passing through the slope (the inner bottom surface of the U-shaped member).
[0026]
Book According to the invention , A handle member is further provided on the outer surface of the side wall portion of the large rail member. In the present invention, since the handle member is provided, the slope for eliminating the step is easily transported and excellent in portability, and by providing it on the outer surface of the side wall portion of the large rail member, the transport holding state can be further stabilized. It is.
[0027]
One handle member or two or more handle members may be provided at a substantially central portion of the slope, and an appropriate interval may be provided. In any case, it is preferable to have a structure that allows the entire slope to be easily held.
[0028]
further , The fixing pin open holding means has an operation portion disposed in the vicinity of the handle member. If It can be operated with the finger of the hand holding the handle. R Since the user can operate with the finger of the hand holding the handle member, the user can release the lock while holding the handle member with one hand, and at the same time, the user can easily adjust the length of the slope by pulling out the rail with the other hand.
[0029]
Book According to the invention , The rail member has a substantially lip channel steel shape having a flange portion projecting inward from the upper portion of the side wall portion. Ru .
[0030]
In the case of using a substantially U-shaped rail, it is advantageous to use a substantially lip channel steel having flange portions projecting inward from the upper portions of the left and right side wall portions of the rail member in order to improve the strength of the rail. . Here, the substantially lip channel steel generally has a substantially U-shaped cross section with the upper part opened, and has a folded portion that protrudes inward from the upper part of both side wall portions. The folded portion is not limited to the structure of the lip groove steel itself protruding at a right angle from the upper portion of the side wall portion.
[0031]
For example, even if it has a structure that is bent in a cross-sectional curved shape from the side wall to the inside, if it has an inward projecting portion, it corresponds to the substantially lip channel steel shape of the present invention, and inward If the overhanging part has a further folding part toward the inner bottom surface, or the tip part bent in a curved shape faces the inner bottom surface, if there is an overhanging part from the side wall part, It corresponds to the lip channel steel of the present invention. That is, all the structures in which a space is formed on the side wall portion side from the front end portion of the inward projecting portion due to the inward projecting portion from the side wall portion are applicable. It should be noted that, even if the outer space is formed outside the side wall portion and outside the side wall portion and inside the front end portion of the overhanging portion, it conceptually matches the gist of the present invention. Is.
[0032]
In any case, the presence of the folded portion provides a strength holding structure in the slide structure and also provides a storage space such as a holding structure for the fixing pin. This prevents the wheelchair wheels passing on the slopes from interfering with each other, and they collide with each other to break the fixing pin holding structure, or the fixing pins come off and the slope is unfixed. This is because it can be prevented.
[0033]
More specifically, if a rail member having a substantially lip groove steel shape is used, the space outside the tip of the flange portion projecting inward is a space through which a wheel such as a wheelchair does not pass.
[0034]
For this reason, since there is no structure part such as a protrusion on the inner bottom surface inside the rail through which the wheel passes, there is no fear of colliding with an external member or the like. Moreover, since it is stored in the internal space of the flange, there is no hindrance to the passage of the wheel.
[0035]
In the present invention, not only the outer large rail member and the inner small rail member can be used in combination with a substantially lip groove steel shape, but only the outer large rail member can be used in a substantially lip groove shape. It can be made of steel and can be used in combination with a small rail member having a substantially U-shaped cross section inside.
[0036]
Book According to the invention , The rail member is a protective member at least at the end of the side wall located at both ends of the slope. The It has a configuration with.
[0037]
Both ends of the slope are easily hit by wheels when passing by a wheelchair, etc., but if the protective member is attached to the end of the side wall located at both ends of the slope of the present invention, the wheel will collide with the end. Can also protect the wheels. This protective member is preferably configured so as not to adversely affect the wheel when it hits the wheel, such as a shape with rounded corners, a member formed of an elastic member such as rubber, etc. However, it is not limited to these. In addition, what is necessary is just to cover at least the edge part of a both-sides wall part, and you may provide in the whole side wall part.
[0038]
In addition, when the reflection member is provided at the end portion, the position of the end portion of the rail becomes easy to understand when passing by a wheelchair or the like, and the passage on the slope can be performed safely. In particular, when the outside is dark, such as in a dark room or at dusk, a particularly excellent effect can be obtained. The reflecting member is not particularly limited as long as it is a member having excellent visibility such as a member having better reflectivity than other members and a fluorescent member. Further, as long as the reflecting member is provided at least at the end portion, there is an advantage that it is easy to understand when the wheel is placed. However, the reflecting member may be provided over the entire length to make it easy to see the location of the slope itself.
[0039]
Claim 4 According to the invention described in claim 1, 3 The slope for level difference elimination according to any one of the above, wherein an abutment plate projecting outward is provided at one end of the rail member, and the mounting angle of the contact plate is the passage surface of the slope ( The rail member is fixed in a range of 10 degrees to 15 degrees downward with respect to an inner bottom surface on which the rail member slides.
[0040]
In general, when installing a slope in a place with a step, it is known that the inclination angle of the slope is preferably about 10 degrees in consideration of the ease of passage of a wheelchair and the safety. For this reason, if the contact plate is fixed at an inclination of 10 degrees with respect to the slope and the slope is installed so that the contact plate just contacts the upper edge of the step, the slope itself forms an inclination of 10 degrees. Will be. In other words, if the slope is fixed by adjusting the overall length of the slope so that the abutment plate can be accurately installed on the top of the slope, the slope with the most preferable angle of 10 degrees as the slope angle is the same as the installation angle. Can be installed.
[0041]
In this case, since the back surface of the contact plate is a grounding portion, the slope of the contact plate is inclined so that the slope has an inclination of 10 degrees with the back surface portion of the contact plate in contact with the upper portion of the slope. The contact angle with respect to is determined.
[0042]
By the way, it is difficult to accurately position the contact plate at the end of the step, and it becomes difficult to ride on the wheelchair if a situation occurs in which the tip is lifted. That is, the slope itself may be slightly bent when a wheelchair or the like gets on the weight of the slope itself, and it is preferable to consider such a deflection in advance.
[0043]
In view of the above-described problems, the present invention provides play with the contact angle of the contact plate, so that the contact can be easily made at an appropriate angle, and safety is taken into consideration. Specifically, since the contact plate itself is a member smaller than the slope body, there may be some deformation and the like, so that the contact angle of the contact plate is provided with play.
[0044]
In this invention, the contact angle of the contact plate is 10 degrees or more and within 15 degrees, that is, about 5 degrees of play is provided. In this case, even when the contact plate is accurately grounded, the angle of the slope is an angle that does not change significantly from the appropriate angle.
[0045]
In the contact plate configured to be 10 degrees or more, the mounting angle is larger than 10 degrees of the appropriate angle of the slope, but when actually installing the slope, for example, it is shown by a solid line in FIG. Thus, the slope may be installed so that at least the tip of the contact plate is installed in the vicinity of the upper edge of the step. In this case, the inclination angle of the slope is smaller than the attachment angle (10 degrees or more) of the contact plate, so that the inclination angle of the slope is an appropriate angle in the vicinity of 10 degrees.
[0046]
Further, in the state where only the tip of the contact plate is grounded in this way, when the slope or the contact plate itself is bent, the grounding portion is wide from the tip to the base as shown by the broken line in FIG. Since the grounding is performed, it is possible to maintain a good grounding state, and it is difficult to cause a state in which only the tip portion is lifted from the grounding surface.
[0047]
In practice, it is preferable to fix the contact plate with a margin of about 2 degrees (an inclination of about 12 degrees with respect to the slope). This is because the positioning when the slope is actually grounded is easy, and the slope angle of the slope itself is likely to be about 10 degrees. Furthermore, about 15 degrees at the maximum is preferable. This is because the grounding state and the actual angle are easy to adjust.
[0048]
According to the present invention, if the length of the slope itself is changed so that the lower end is grounded by changing the length of the slope itself in a state where the contact plate is substantially accurately grounded to the upper edge of the step, in that state The slope is installed at an appropriate angle. For this reason, even if it does not bother to measure an installation angle, there exists an advantage which can install the slope of an appropriate angle easily.
[0049]
Furthermore, in the present invention, the length can be finely changed in multiple stages, so that the slope can be slid at an appropriate time and fixed at an appropriate length so that it can be applied at an appropriate angle even if it is a step with various heights. It has become. For this reason, the rising of the slope when a wheelchair or the like passes through the contact plate can be prevented, and safety is high.
[0050]
In addition, a single slope can handle various height differences, so there is no need to have multiple slopes, which is very convenient. In addition, if it is excellent in portability with a handle member, it can be carried when going out and an appropriate slope can be easily formed at a stepped portion in a timely manner, so that the range of action of a person using a wheelchair can be widened. There are also advantages.
[0051]
In the present invention, the mounting angle of the contact plate is fixed at about 12 degrees in consideration of the slope being bent due to its own weight when the wheelchair travels on the slope. This is because the contact plate bends with the load when it is about to come into contact with the entire back surface of the contact plate to increase the frictional force and prevent the dropout.
[0052]
Furthermore, depending on the length, strength, etc. of the slope, the mounting angle of the contact plate may be changed as appropriate within the range of the slope angle of 10 degrees to 15 degrees.
[0053]
Moreover, you may provide a slip prevention material in the inner bottom face of a rail member, the upper surface of a contact board, and a back surface. Thereby, a wheelchair etc. can drive | work a slope more safely.
[0058]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an outline of a slope for eliminating a level difference according to one embodiment of the present invention. In this figure, an outer rail 1 that is a large rail member has a substantially lip groove steel shape, and an inner rail 2 that is a slightly small rail member having a rib with a low height on the outer surface with substantially the same cross-sectional shape. It is configured to be slidable relative to each other by being inserted.
[0059]
In the side wall portion of the outer rail 1, an insertion hole 4 into which the fixing pin 5 is inserted is provided in the vicinity of the end portion on the insertion side of the inner rail 2. On the other hand, a plurality of adjustment holes 3a to 3n (the number is arbitrary) are opened in the side wall portion of the inner rail 2 along the longitudinal direction (sliding direction). Then, the inner and outer rails are fixed by inserting the fixing pin 5 in a state where the inner and outer rails are slid to each other and the insertion hole 4 and the adjustment hole 3 (any one) are aligned. A handle 9 having a shape that can be easily held by the user is provided on the outer surface of the side wall portion of the outer rail 1, and a holding structure for the fixing pin 5 is provided in the vicinity thereof.
[0060]
As shown in FIG. 6, the holding structure includes an arm 7 having a fixing pin 5 at the tip, a mounting shaft 16 that rotatably holds the arm 7 on the outer surface of the side wall of the outer rail 2, and the arm 7. On the other hand, a spring 6 that constitutes an urging means that urges the fixing pin 5 in a direction in which the fixing pin 5 is fitted into the insertion hole 4, and the arm 7 is rotated about the mounting shaft 16 against the urging force of the spring 6. The operation button 8 or the like for moving the fixing pin 5 to at least a position where it is pulled out from the adjustment hole.
[0061]
In addition, although the structure which pulls out the fixing pin 5 by the operation button 8 or its push-down comprises the open holding means of this invention, it is not limited to this structure, The fixing pin 5 was pulled out at least from the adjustment hole. Any other configuration may be adopted as long as it has an action that can be maintained in a state.
[0062]
FIG. 2 shows a plan view of a slope for eliminating a level difference according to one embodiment of the present invention, and FIG. 3 is a front view thereof. As shown in FIG. 2, the handle 9 is attached to a position slightly shifted from the center of the outer surface of the side wall portion of the outer rail 1 in the direction in which the inner rail 2 is inserted. This takes into account the overall balance and is the position of the center of gravity in the shortest state. This is for the convenience of carrying.
[0063]
Further, in the vicinity of the handle 9, a fixing pin opening holding means is provided on the outer surface of the side wall portion of the outer rail 1 on the side through which the inner rail 2 is inserted, and is covered with a rectangular cover 15 having rounded corners. Yes. This cover 15 has a notch in a part thereof, and the operation button 8 protrudes and protrudes from the notch, and a finger (generally a thumb) that holds the handle 9 when adjusting the length of the slope. It can be operated.
[0064]
Furthermore, an upper contact plate 10 and a lower contact plate 10 'are provided outwardly projecting from both ends of the slope. Anti-slip material 17 in which silica or the like is bonded to the upper surface of waterproof paper is affixed to the inner bottom surfaces of outer rail 1 and inner rail 2, the surface of upper contact plate 10 and the surface of lower contact plate 10 '. It forms a roadway for wheelchairs. As the slip prevention means, the inner bottom surface of the rail member and the surfaces of the contact plates 10 and 10 'may be uneven, and any other general prevention means may be used.
[0065]
Further, as shown in FIG. 3, the upper contact plate 10 is fixed at an attachment angle θ of about 12 degrees downward relative to the slope passage surface. The upper contact plate 10 is placed on the upper part of the step and is provided to prevent the slope from falling off. Further, it is preferable to attach an anti-slip material to the back surface of the upper contact plate 10 in order to prevent the slope from falling off.
[0066]
On the other hand, the lower contact plate 10 ′ shown in FIG. 3 is mounted so that the mounting angle can be changed upward with respect to the slope passage surface. This lower side contact plate 10 'is placed on the lower step of the step, and is preferably provided so that the wheelchair can smoothly enter the slope. By allowing the mounting angle θ ′ to be changed according to the length of the slope, the wheelchair can smoothly enter the slope regardless of the level difference. Therefore, it is preferable that the lower contact plate 10 ′ is fixed with, for example, a hinge or the like. Further, when the lower contact plate 10 ′ is provided, it is preferable to attach an anti-slip material to the back surface, but it is not always necessary to apply it. Alternatively, the lower contact plate 10 ′ may be an elastic member that can be deformed in its mounting state, and the mounting angle can be changed as appropriate.
[0067]
Further, as shown in FIG. 3, a reflective tape 12d as a reflective member is provided on the upper surface of the side wall of the slope, a reflective tape 12b is provided on the side of the side wall, and reflective tapes 12a and 12c are provided on both ends of the side wall. In addition, plastics 13a and 13b as protective members are fixed to both ends of the side wall portion with set screws 11 and 11 '. Note that rubber or the like may be used instead of plastic as the protective member.
[0068]
When installing the slope configured in this way at the step, first, the upper contact plate 10 of the slope is hooked on the upper surface of the step. The upper contact plate 10 is grounded in a state in which the tip portion is grounded and the grounding surface between the base portion and the step is slightly formed, and the length is adjusted by sliding the entire slope. At this time, the length can be easily adjusted by pressing the operation button 8 with a finger while holding the handle 9 with one hand and sliding the rail with the other hand. When it is desired to change the length at a stretch, the rail may be slid while the operation button 8 is kept pressed. When the slope has an appropriate slope length according to the level difference, the rail is fixed with a fixing pin, and the lower stage side contact plate 10 'of the slope is placed on the lower level surface of the level difference.
[0069]
FIG. 7 is a diagram for explaining the state of the mounted slope. As already described, it is difficult to accurately position and contact the upper contact plate 710 at the upper edge of the step without uniform gaps. Accordingly, the slope length is adjusted so that at least the tip of the upper contact plate 710 substantially contacts the step, and the slope is installed at the step. In this state, the slope inclination angle is smaller than the mounting angle of the upper contact plate 710 (generally 10 degrees). That is, as shown by the solid line in FIG. 7, the slope itself is installed at a preferred angle of about 10 degrees. Since the tip of the upper contact plate 710 is in close contact with the upper part of the step, there is no fear that the slope will rise even if a wheelchair or the like passes through the upper contact plate 710. Moreover, it is possible to smoothly ride on the upper contact plate 710 of a wheel such as a wheelchair, and the wheelchair can travel safely.
[0070]
When the wheelchair or the like actually travels on the slope, the slope slightly bends downward due to the weight of the wheelchair or the like and the weight of the slope itself, and the state of the broken line in FIG. That is, when the slope is slightly bent, the upper contact plate 710 further adheres to the upper part of the step. This increases the safety when a wheelchair or the like passes through the slope. Even in this state, it is needless to say that the inclination angle of the slope is maintained at a preferable angle, that is, approximately 10 degrees.
[0071]
As described above, in the present invention, the slope length is adjusted by providing play in the attachment angle of the upper contact plate 710 in the range of 10 to 15 degrees, more preferably in the range of 12 to 13 degrees. Even if it is installed at any level difference, at least the tip of the upper side contact plate 710 can be reliably grounded to the upper part of the level difference, and the slope inclination angle can be maintained at a preferable angle of about 10 degrees. The slope can be safely passed.
[0072]
In addition, even if the attachment angle of the upper contact plate 710 is inclined by 10 degrees, the slope is inclined by 10 degrees or less, and there is no problem in traveling the wheelchair. Even if the mounting angle of the upper contact plate 710 is slightly less than 10 degrees, the slope inclination angle is further gradual and there is no problem in running the wheelchair. It must be secured. Moreover, when the total length of the slope becomes long, there is a possibility that a problem with the strength of the slope may occur. For these reasons, it is preferable that the mounting angle of the upper contact plate 710 be 10 degrees or more.
[0073]
On the other hand, even when the attachment angle of the upper contact plate 710 is 15 degrees, the slope inclination angle is smaller than the attachment angle of the upper contact plate 710 and can be maintained at around 10 degrees. There is no problem in running. Even if the upper contact plate 710 is attached to the slope slightly exceeding 15 degrees, there is no problem in using the slope, but it is desirable that the attachment angle of the upper contact plate 710 is 15 degrees or less as much as possible. This is because it is a practical limit.
[0074]
As described above, the attachment angle of the upper contact plate 710 may be appropriately selected and determined in the range of 10 degrees to 15 degrees in consideration of the material characteristics (strength and the like) of the slope to be used. In the slope material (stainless steel, aluminum, etc.) generally used, the attachment angle of the upper contact plate 710 is preferably in the range of 12 degrees to 13 degrees. Considering the strength characteristics of the material, the deflection during use of the slope, etc., if the mounting angle of the upper contact plate 710 is set to 12 degrees to 13 degrees, the slope inclination angle is preferably around 10 degrees. .
[0075]
FIG. 4 shows a second embodiment according to the present invention. In FIG. 4, the inner rail 102 is inserted into the outer rail 101, and a lower contact plate 110 ′ is provided outwardly projecting at the end of the outer rail 101, and the upper contact is provided at the end of the inner rail 102. A plate 110 is provided so as to project outward, and is a slope in which an anti-slip agent 117 is attached to the wheelchair traffic surface. The other basic structure of this slope is the same as that of FIG.
[0076]
In this embodiment, the operation button 108 may be provided inside the handle 109.
[0077]
FIG. 5 is a longitudinal sectional view of a slope showing a third embodiment according to the present invention. In the present embodiment, the outer rail 201 and the inner rail 202 with the anti-slip material 217 attached to the inner bottom surface are bent inwardly from the upper surface of the side wall to the inner rail 202, and the flange portion 218 is bent inwardly from the curved tip. A substantially lip channel steel shape having a tongue-like portion 214 extending in the direction is used.
[0078]
Ribs 219 are provided on the outer surface of the inner rail 202 facing the outer rail 201 to facilitate sliding. The anti-slip material 217 is attached to the rib 219 and the inner bottom surface of the outer rail 201. It is formed so as to slide while being in slidable contact with the part that is not. Since the rib 219 is provided to reduce the frictional resistance between the outer rail 201 and the inner rail 202 generated when the slope is slid to facilitate sliding, the area where the rib 219 contacts the outer rail 201 is as follows. Smaller is better.
[0079]
In addition, in a space formed by the side wall portion of the rail and the portion extending inward from the side wall portion (the flange portion 218 and the tongue-like portion 214), a holding structure (spring) covered with a rectangular cover 215 is provided. 206, arm 207, and operation button 208), and the holding operation of the fixing pin 205 can be performed in the space (the two-dot chain line in FIG. 5 indicates the position where the fixing pin is held open). ing). The holding structure of the fixing pin may be as shown in FIG. 6, or the holding structure shown in FIG. 5 is applicable.
[0080]
The fixing pin holding structure in this embodiment is provided with a fixing pin 205 at one end of a rod-like arm 207, and this fixing pin 205 is always urged in a direction to be fitted into the insertion hole 204 side by an urging force of a spring 206. An operation button 208 is provided at the other end of the arm 207, and the operation button 208 is pulled in a direction against the urging force in the axial direction of the arm 207 to perform an operation of holding the fixing pin 205 open.
[0081]
As described above, since the holding structure (spring, arm, operation button) of the fixing pin 205 is accommodated in the space formed by the side wall portion of the rail and the portion extending inward from the side wall portion, the adjustment hole 203 is provided. Must be opened in the outer rail 201 and the insertion hole 204 must be opened in the inner rail. The tongue 214 serves as a guide for the direction orthogonal to the sliding direction when the outer rail 201 and the inner rail 202 slide relative to each other. There is also an effect to protect against collisions.
[0082]
This embodiment is particularly advantageous when it is desired to ensure strength or when it is not desired to provide a fixing pin holding means on the outer surface of the rail side wall. Moreover, since the rail upper surface is curved, it is excellent in terms of safety.
[0083]
【The invention's effect】
As described above, according to the step elimination slope according to the present invention, since the fixing pin urging means and the open holding means are provided, the slope length can be adjusted easily and quickly, and the safety is ensured. And can have an excellent effect of high reliability. It is also possible to adjust the length of the slope at once by the opening holding means of the fixing pin. Furthermore, since the length can be adjusted in stages, it can be used for any level difference, and the range of use can be greatly expanded with a single slope. In addition, since there is a handle member, it is easy to carry and convenient to carry in various places. Further, since the length can be adjusted, it is not necessary to have a plurality of slopes, which is economically advantageous.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a schematic configuration of a first embodiment according to the present invention.
FIG. 2 is a plan view showing details of the first embodiment according to the present invention.
FIG. 3 is a front view showing details of the first embodiment according to the present invention.
FIG. 4 is a plan view showing details of a second embodiment of the present invention.
FIG. 5 is a longitudinal sectional view showing details of a third embodiment of the present invention.
FIG. 6 is a diagram showing details of the structure of the fixing pin.
FIG. 7 is a diagram for explaining an installation state of a slope.
[Explanation of symbols]
1, 101, 201: Outer rail
2,102,202: Inner rail
3, 3a, 3b, 3c, 203: adjustment hole
4,204: Insertion hole
5,205: Fixing pin
6,206: Spring
7,207: Arm
8, 108, 208: Operation buttons
9, 109: Handle
10, 110, 710: Upper side contact plate
10 ', 110': Lower contact plate
12a, 12b, 12c, 12d: reflective tape
13a, 13b: Plastic
17, 117, 217: Anti-slip material
19,219: Rib
218: Flange part

Claims (4)

It has at least two types of large and small rail members having a substantially U-shaped cross section opened upward, and a small rail member is slidably inserted inside an outer large rail member. The large rail member and the small rail member are inserted by simultaneously inserting a fixing pin into any one of a plurality of adjustment holes provided at a predetermined interval in the sliding direction and an insertion hole provided in the other rail member. While fixing, by changing the adjustment hole into which the small pin member is slid relatively and inserting the fixing pin into a different adjustment hole, a rail-shaped slope having a different overall length is configured ,
The fixing pin comprises an urging means for urging the fixing pin from the insertion hole side to the adjustment hole side, and an open holding means capable of holding the fixing pin in a state of being pulled out from the adjustment hole;
On the outer surface of the side wall portion of the large rail member, in the slope for eliminating the step , the operating portion of the holding means for the fixing pin and the handle member are provided .
The rail member is of a substantially lip groove steel shape having a flange portion projecting inward from the upper side wall portion,
A slope for eliminating a level difference, comprising a protective member having a rounded corner covering the end of the side wall located at both ends of the slope. The slope for eliminating a level difference according to claim 1, wherein a reflecting member is provided at an end portion of the side wall portion located at both ends of the slope. The slope for level difference elimination according to claim 1 or 2 , wherein the protection member is formed of an elastic member of plastic or rubber . An abutment plate projecting outward is provided at one end of the rail member, and the attachment angle of the contact plate is fixed in the range of 10 to 15 degrees downward with respect to the passage surface of the slope. The slope for eliminating a level difference according to any one of claims 1 to 3 , wherein the slope is provided.

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