JP5022628B2 - Leveling lift device - Google Patents

Description

  The present invention relates to a level difference eliminating lift device that is used to eliminate a staircase difference and is effective particularly when moving on a wheelchair.

As this type of prior art, there is known a pantograph type lifting mechanism, a table supported on an upper part of the lifting mechanism, that is, a platform, and a sub-platform that is installed under the platform and can be moved back and forth. (See Patent Document 1).
JP-A-6-40698

  The above-mentioned conventional technology is configured to move the sub-platform forward and backward in conjunction with the raising and lowering of the platform. Although only the platform drive device is required, the mechanism for interlocking is not only complicated, but is always normal. Maintaining it to work is also a hassle.

  An object of the present invention is to provide a step eliminating lift device capable of realizing simplification of the device and ensuring excellent safety and operability.

In order to achieve this object, the present invention includes a pantograph that moves up and down several steps, and a step elimination lift device having a table at the upper end of a cross column that constitutes the pantograph, the table being mounted A tread plate on which an object is mounted, and a lower plate having a side plate that contacts the pantograph and is joined to the tread plate, is disposed between the tread plate and the lower plate, and can be stored in the table, A movable slope that can be moved in and out of the table, a fixed bracket provided on the upper surface of the movable slope, a stopper fixing bracket provided on the upper surface of the movable slope, and a swingable rotation attached to the fixed bracket. When the moving slope is pulled out to the maximum, its tip is above the stopper fixing bracket. Provided with a abutting the stopper to the end, is characterized in that the formation of the continuously provided capable inclined portions to each other on each of the upper surfaces of the upper surface and the fixed bracket of the stopper.

  The present invention configured as described above operates the pantograph's crossing strut to raise the table tread to the top of the staircase, and in this state, laterally moves the moving slope stored in the table. By pulling it out, it is possible to transport a load, such as a wheelchair, mounted on the tread board to the top of the staircase via the moving slope, and to move the wheelchair etc. on the top of the staircase to the top of the table via the moving slope. It can be transported to the tread board. After the conveyance, the moving slope is stored in the table, and for example, the cross column is operated to lower the tread of the table.

  In this way, the present invention capable of eliminating the steps of the stairs and transporting wheelchairs and the like can make the up-and-down movement of the cross column and the moving-in / out movement of the moving slope with respect to the table independent. It is not necessary to provide a device, and the device can be simplified. In addition, when a load such as a wheelchair is placed on the tread of the table, only a vertical load is applied via the tread, so that the load on the tread can be stably held, and When the load is transported between the uppermost stage, the moving slope is supported at both ends between the tread board and the uppermost stage of the stairs, so that stable transportation can be performed. As a result, excellent safety can be ensured. Furthermore, as described above, after the lifting / lowering operation of the cross column, it is only necessary to move the moving slope laterally to perform the entering / exiting operation with respect to the table. Therefore, it is not necessary to consider the combined operation, and excellent operability can be ensured.

  The present invention can realize simplification of the apparatus, thereby reducing the manufacturing cost. Further, excellent safety and operability can be ensured, and a highly reliable apparatus can be obtained as compared with the conventional one.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The best mode for carrying out a step elimination lift device according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a plan view showing an embodiment of a step elimination lift device according to the present invention, FIGS. 2 to 4 are diagrams showing a schematic operation of this embodiment, and FIG. 2 is a side view showing a state in a lowered state. FIG. 3 is a side view showing the lifted state, and FIG. 4 is a side view showing the lifted state with the moving slope being pulled out. 5 is a side view taken along line AA in FIG. 1, and FIG. 6 is a side view taken along line BB in FIG.

  7 to 9 are diagrams showing details of the operation of the present embodiment. FIG. 7 is a side sectional view corresponding to the line AA in FIG. 1 and showing a state in which the moving slope is drawn. FIG. 9 is a side sectional view showing a state in which the moving slope is drawn out, and FIG. 9 is a state corresponding to the line BB in FIG. 1, in which the moving slope is drawn out and the stopper is set. FIG.

  10 is a cross-sectional view taken along line CC in FIG. 1, FIG. 11 is a cross-sectional view taken along line DD in FIG. 1, and FIG. 12 is a cross-sectional view taken along line EE in FIG. FIGS. 13 and 14 are diagrams showing details of the operation of the present embodiment. FIG. 13 corresponds to the line BB in FIG. 1, and is a side sectional view showing a state in which the moving slope is drawn and the stopper is not set. 14 is a plan view showing a state in which the moving slope is pulled out and the stopper is set.

  As shown in FIGS. 1, 5, etc., the step elimination lift device 1 according to the present embodiment has a tread 4 on the upper surface of the table, a lower plate 25 on the lower surface of the table, and the tread 4 and the lower plate. 25 is joined by a joining bracket 50 shown in FIG. When the step lifter 1 is in a lowered state, the end surface is located near the bottom-up kick surface of the stairs 2 and a wheelchair or the like is placed on the other end surface on the opposite side, as shown in FIG. An inclined slope 3 is arranged for easy mounting on the tread surface 4.

  At the time of ascent, as shown in FIG. 3, the rollers provided on each of the outer cross column 5 and the inner cross column 6 fixed with a rotatable pin by a hydraulic jack or the like are installed on the lower plate 25. The rolling surface of the rail 7 and the lower rail 8 installed on the building floor is rolled, and an X-shape is formed by the outer cross column 5 and the inner cross column 6 to raise the tread plate 4 and mount it on the tread plate 4. Raise the wheelchair.

  Further, as shown in FIG. 3 and the like, a front side pinch prevention switch 9 and a rear side pinch prevention switch 10 constituted by a tape switch or the like are provided on the staircase 2 side and the slope 3 side of the lower plate 25, respectively. When the level difference lifting device 1 is lowered, the lower level of the stairs 2 and the foreign object on the slope 3 are detected, and the descent is stopped urgently. To prevent.

  In the present embodiment, in particular, a movement slope that can be pulled out and moved laterally, for example, two movement slopes of a right movement slope 11 and a left movement slope 12 as shown in FIG. is there. As shown in FIG. 4, in a state where the right side moving slope 11 and the left side moving slope 12 are pulled out, these ends are arranged at the uppermost stage of the stairs 2, and a load such as a wheelchair loaded on the tread 4 is It is possible to move to the uppermost stage of the stairs 2 by moving through the right moving slope 11 and the left moving slope 12.

  In this embodiment, the moving slope is composed of two sheets, the right moving slope 11 and the left moving slope 12, but the moving slope can be composed of one sheet or a plurality of three or more sheets. The pantograph structure that is located below the lower plate 25 of the level difference lifting device 1 and moves up and down the tread plate 4 and the lower plate 25 with a hydraulic jack or the like is a known technique, and thus description thereof is omitted.

  Next, the part including the moving slope constituting the main part of the present embodiment will be described in detail with reference to FIGS. 1, 5, 6, 10, 11, 12, and the like.

  As described above, the step board 4 on the upper surface of the step eliminating lift device 1 is joined to the rising portion on the side surface of the lower plate 25 by the plurality of joint brackets 50 shown in FIG. 10, and the step plate 4 and the lower plate 25 have an integrated structure. A predetermined space is formed in the interior. In the predetermined space, a right moving slope 11 and a left moving slope 12 which are two right and left moving slopes are arranged. The left and right moving slopes 11 and 12 have a symmetrical structure with respect to the center of the tread plate 4.

  In the position where the two right-hand movement slopes 11 and the left-hand movement slope 12 are connected to each other by a screw or welding on the side to be drawn, and the two movement slopes 11 and 12 are housed inside, The upper surface of the drawer bracket 13 is exposed, and the tread plate 4 has a notch shape so as to avoid the upper surface of the drawer bracket 13 as shown in FIG. Further, as shown in FIG. 1, the upper surface of the drawer bracket 13 is provided with a hole portion into which a hook-like portion at the end of a later-described drawer bar 14 can be inserted. This hole may be replaced with a notch into which the above hook-like portion can be inserted.

  Since the right side moving slope 11 part and the left side moving slope 12 part described above have a target structure, the right side moving slope part will be mainly described below.

  At the entrance / exit side of the lower plate 25, an entrance / exit side guide roller 32 is inserted into an entrance / exit side guide roller fixing shaft 35 fixed to the lower plate 25, and the entrance / exit side guide roller 32 is connected to the right side moving slope 11. It abuts on the side. The entrance / exit-side guide roller 33 located on the opposite side is also installed in the same structure, and the entrance / exit-side guide roller 32 and the entrance / exit-side guide roller 33 guide the pull-out side and storage travel of the right side moving slope 11. The left side moving slope 12 has the same structure, and an entrance / exit side guide roller 34 and the like are arranged.

  A travel guide roller 40 is inserted into a travel guide roller fixed shaft 42 shown in FIG. 11 fixed to the right travel slope 11 at the back side of the right travel slope 11, and the travel guide roller 40 is placed on the inner surface of the lower plate 25. Abutted. The travel guide roller 39 located on the opposite side is also installed with the same structure, and the travel guide roller 39 and the travel guide roller 40 support the travel on the far side of the right side moving slope 11. The left side moving slope 12 has the same structure, and an entrance / exit side guide roller 41 inserted into the travel guide roller fixed shaft 43 is disposed to support the travel.

  Further, the back side guide roller fixing bracket 47 and the back side guide roller fixing bracket 47 shown in FIG. 1 disposed on the back side of the right side moving slope 11 and fixed to the right side moving slope 11 are respectively shown in FIG. The back side guide roller fixed shaft 48 and the back side guide roller fixed shaft 49 are fixed, and the back side guide roller 44 and the back side guide roller 45 are inserted. The back side guide roller 44 abuts on the inner surface of the lower plate 25, and the back side guide roller 45 abuts on a rail 51 fixed to the lower plate 25, so that the back side guide roller 44 and the back side guide roller 45, traveling on the back side of the right moving slope 11 is guided. The left side moving slope 12 has the same structure and travel is guided.

  Further, the lower plate 25 is provided with a hole as shown in FIGS. 1 and 10, and a lower support roller fixing box 31 is fixed to the hole by a screw or a welded structure. A lower support roller fixing bracket 28 is provided in the lower support roller fixing box 31, and a lower support roller fixing shaft 29 and a lower support roller fixing shaft 30 are attached to the lower support roller fixing bracket 28. The lower support roller 26 and the lower support roller 27 are respectively inserted. The lower support roller 26 and the lower support roller 27 are in contact with the lower surface of the right moving slope 11.

  The lower support roller 26 and the lower support roller 27 support the running of the right side moving slope 11 on the drawer side. The left side moving slope 12 has the same structure and supports running.

  As shown in FIG. 1, a storage stopper fixing bracket 24 is fixed to the right moving slope 11, a storage stopper 23 is fixed to the storage stopper fixing bracket 24, and a storage bracket 22 is attached to the lower plate 25. Is fixed, and the right side moving slope 11 is in the correct storage position at the position where the tip of the storage stopper 23 contacts the storage bracket 22.

  The right moving slope 11 is provided with a storage and fixing bracket 21 made of a magnetic material, the lower plate 25 is fixed with a switch 20, the switch is provided with a magnet 19, and the storage and fixing bracket 21 is fixed. The right moving slope 11 is in the correct storage position at a position where it is contacted by the magnetic force of the magnet 19 provided in the switch 20. Further, the switch 20 operates when the storage fixing bracket 21 contacts the magnet 19 provided on the switch 20. Alternatively, when the operation is reversed, the signal is transmitted to a control device (not shown), and the storage and fixing bracket 21 provided on the right movement slope 11 correctly contacts the magnet 19 provided on the switch 20 so that the right movement slope is provided. It is determined whether 11 is stored in the correct position.

  Further, the above-described storage stopper 23 is brought into contact with the storage stopper fixing bracket 24 at a position where the right side moving slope 11 is correctly stored, and by restricting the lateral movement amount of the right side moving slope 11 in the storage direction, the storage stopper 23 is stored. The switch 20 and the magnet 19 are prevented from being damaged by the contact of the fixing bracket 21. The left moving slope 12 is also configured with the same structure.

  Further, as shown in FIG. 1, a stopper fixing bracket 15 and a fixing bracket 17 are fixed to the right moving slope 11 with screws or a welded structure, and the fixing bracket 17 has a cross-sectional shape via a hinge 18. An L-shaped stopper 16 is attached, and the stopper 16 can be pivoted and rotated by a hinge 18. The left moving slope 12 is also configured with the same structure.

  Next, the operation in the case of moving a wheelchair or the like to the uppermost stage of the stairs 2 according to the present embodiment will be described in detail mainly using FIGS. 6, 7, 8, 9, 13, and 14.

  When a wheelchair or the like is mounted on the step board 4 of the step eliminating lift device 1 and raised to a certain position, the two moving slopes 11 and 12, for example, the right moving slope 11 inside the step eliminating lift device 1 are shown in FIG. As shown in the drawing, the hook-like portion of the drawer bar 14 having a hook-like portion at the tip is inserted and set in the hole on the upper surface of the drawer bracket 13, and the drawer rod 14 is used. Then, the right side moving slope 11 is pulled out in the pulling direction, and the tip of the right side moving slope 11 is pulled out to a position where it wraps to the uppermost stage of the stairs 2 as shown in FIGS. In this way, at the position where the right side moving slope 11 is pulled out, the expansion stopper 36 and the expansion stopper 37 fixed to the inner surface of the lower plate 25 are laterally moved in synchronism with the right moving slope 11 and are moved to the inner surface of the lower plate 25. When the travel guide roller 39 and the travel guide roller 40 that are in contact with each other and roll are in contact with each other, as shown in FIG. 7, further lateral movement of the right movement slope 11 is restricted. The same applies to the left movement slope 12.

As shown in FIG. 8, with the two moving slopes 11 and 12 fully pulled out, the leading end of the drawer bar 14 is pulled out from the hole of the drawer bracket 13, and as shown in FIG. the dynamic rotatable stopper 16 is rotated, the rising tip of the stopper 16 is set to be in contact with the upper surface end portion of the stopper fixing bracket 15. By setting it as such a state, the wheelchair etc. on the tread 4 etc. via the inclination part of the upper surface of the fixing bracket 17 and the inclination part continuously provided in this inclination part and formed in the upper surface of the fixing bracket 17 It is possible to move smoothly to the two moving slopes 11 and 12.

  If the two moving slopes 11 and 12 are not pulled out to the correct position, the rising cross section of the stopper 16 does not contact the top surface of the stopper fixing bracket 15 but contacts the tread surface 4 as shown in FIG. However, the stopper 16 is prevented from standing up, and it is impossible to pass a wheelchair or the like. As a result, it is possible to prevent an erroneous operation of an operator who pulls out the two moving slopes 11 and 12.

  Further, unless the work of rotating and setting the stopper 16 is performed, the state as shown in FIG. 8 is obtained, and the rising portion of the stopper 16 does not smoothly pass the wheelchair. The moving slopes 11 and 12 or the two moving slopes 11 and 12 cannot be moved onto the tread 4. That is, if the two extension stoppers 11 and 12 are in the correct position, that is, the top end of the staircase 2 is set at the tip, the stopper 16 is set, and if it is not set in the correct position, the wheelchair can be safely entered. The configuration is not possible.

  When transporting a wheelchair or the like to the uppermost stage of the stairs 2 and storing the two moving slopes 11 and 12 inside and lowering the step elimination lift device 1, the two moving slopes 11 and 12 are in the correct positions. If not, the two moving slopes 11 and 12 that have protruded at the descending end contact with the lowermost step of the staircase 2 and may cause a failure.

  Therefore, in order to confirm that the right side moving slope 11 is in the correct storage position, the storage fixing bracket 21 made of a magnetic material on the right side moving slope 11 is contact-fixed by the magnetic force of the magnet 19 provided in the switch. When the switch 20 is activated or deactivated, the signal is transmitted to a control device (not shown), and it is determined whether or not the two moving slopes 11 and 12 are stored in the correct positions. The When the two moving slopes 11 and 12 are not stored in the correct storage position due to a signal from the switch 20, the step elimination lift device 1 cannot be lowered in accordance with a control signal output from a control device (not shown). It has become.

  According to the present embodiment configured as described above, the up-and-down operation of the cross columns 5 and 6 and the in-and-out operation of the right side moving slope 11 and the left side moving slope 12 with respect to the table including the step board 4 and the lower side plate can be made independent. Therefore, it is not necessary to provide a complicated interlocking structure, and the apparatus can be simplified. This can reduce production costs.

  In addition, when a load such as a wheelchair is placed on the step board 4 of the table, only a vertical load is applied via the step board 4, so that the load on the step board 4 can be stably held. When the load is transported between 4 and the uppermost stage of the stairs 2, the right moving slope 11 and the left moving slope 12 are both supported between the step board 4 and the uppermost stage of the stairs 2, so that smoothness is achieved. Can carry. As a result, excellent safety can be ensured. Furthermore, as described above, after the up-and-down movement of the cross columns 5 and 6, the right-side moving slope 11 and the left-side moving slope 12 may be moved laterally to perform the entering / exiting operation with respect to the table. Excellent operability can be secured. As a result, a highly reliable device can be obtained.

It is a top view which shows one Embodiment of the level | step difference elimination lift apparatus which concerns on this invention. It is a figure which shows schematic operation | movement of this embodiment, and is a side view which shows the time of being in a descent | fall state. It is a figure which shows schematic operation | movement of this embodiment, and is a side view which shows the time of being in a raise state. It is a figure which shows the schematic operation | movement of this embodiment, and is a side view which shows when it exists in a raise state and is in the state where the movement slope was pulled out. It is a side view which follows the AA line of FIG. It is a side view which follows the BB line of FIG. It is a figure which shows the detail of operation | movement of this embodiment, and is a sectional side view corresponding to the AA line of FIG. 1, and showing the state by which the movement slope was pulled out. It is a figure which shows the detail of operation | movement of this embodiment, and is a sectional side view corresponding to the BB line of FIG. 1, and showing the state by which the movement slope was pulled out. It is a figure which shows the detail of operation | movement of this embodiment, and is a sectional side view which shows the state which corresponded to the BB line of FIG. 1, the movement slope was pulled out, and the stopper was set. It is sectional drawing which follows the CC line of FIG. It is sectional drawing which follows the DD line | wire of FIG. It is sectional drawing which follows the EE line | wire of FIG. It is a figure which shows the detail of operation | movement of this embodiment, and is a sectional side view which shows the state which respond | corresponds to the BB line of FIG. 1, and a movement slope is pulled out and a stopper is not set. It is a figure which shows the detail of operation | movement of this embodiment, and is a top view which shows the state by which the movement slope was pulled out and the stopper was set.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Level | step elimination lift apparatus 2 Stairs 3 Slope 4 Tread board 5 Outer cross strut 6 Inner cross strut 7 Upper rail 8 Lower rail 9 Front side pinch prevention switch 10 Rear side pinch prevention switch 11 Right side movement slope 12 Left side movement slope 13 Drawer bracket 14 Pull-out bar 15 Stopper fixing bracket 16 Stopper 17 Fixing bracket 18 Hinge 19 Magnet 20 Switch 21 Storage fixing bracket 22 Storage bracket 23 Storage stopper 24 Storage stopper fixing bracket 25 Lower plate 26 Lower support roller 28 Lower support roller fixing bracket 31 Lower Side support roller fixing box 32 Entrance / exit side guide roller 36 Expansion stopper 39 Travel guide roller 44 Back side guide roller 51 Rail

Claims (7)

In a level difference cancellation lift device that includes a pantograph that raises and lowers steps corresponding to several steps, and that has a table at the upper end of the cross column that constitutes this pantograph,
The table includes a tread plate on which a load is mounted, and a lower plate having a side plate that contacts the pantograph and joins the tread plate,
A moving slope that is disposed between the tread plate and the lower plate, can be stored in the table, and can move laterally to and from the table ;
A fixing bracket provided on the upper surface of the moving slope;
A stopper fixing bracket provided on the upper surface of the moving slope;
The fixed bracket is attached to the fixed bracket so as to be able to swing and rotate, and when the moving slope is pulled out to the maximum extent, the front end thereof includes a stopper that comes into contact with the upper end of the stopper fixed bracket, and
A step eliminating lift device , wherein an inclined portion that can be connected to each other is formed on each of an upper surface of the stopper and an upper surface of the fixed bracket . In the invention of claim 1,
Provided on the entrance / exit side of the moving slope, provided with a drawer bracket having a hole or notch,
The step eliminating lift device, wherein a notch having a shape that avoids the surface of the drawer bracket is formed in the tread plate at a position where the moving slope is stored in the table. In the invention of claim 1,
A guide roller provided on a side of the moving slope;
A step provided on the inner surface of the lower plate, and an extension stopper that contacts the guide roller when the moving slope is pulled out from the table and regulates the amount of lateral movement of the moving slope. Dissolving lift device. In the invention of claim 1,
A storage bracket provided on the inner surface of the lower plate;
And a storage stopper provided on the moving slope, which contacts the storage bracket when the moving slope is stored in the table, and regulates a storage position of the moving slope in the table. Leveling lift device. In the invention of claim 1,
A storage fixing bracket provided on the moving slope and made of a magnetic material;
A magnet provided on the lower plate and capable of contacting the storage fixing bracket;
The step eliminating lift device, wherein the storage fixing bracket and the magnet are arranged so that the moving slope is stored in the table at a position where the storage fixing bracket contacts the magnet. In the invention of claim 5,
A step eliminating lift device, wherein the lower plate is provided with a switch that operates when the storage fixing bracket comes into contact with the magnet. In the invention of claim 2,
A drawer bar having a hook-like portion that can be inserted into the hole portion or the notch portion of the drawer bracket provided on the entrance / exit side of the movable slope, which is used for drawing or storing the movable slope. A step-lifting lift device.

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