JP6490393B2 - Wheelchair lifting device - Google Patents

Description

The present invention relates to a lifting device for the car chair.

  In the lifting device for a wheelchair disclosed in Patent Document 1, the base unit includes a base frame, a lifting frame, and a table portion, and the lifting unit includes a lifting drive mechanism in the housing. The base unit and the lifting unit And the above-mentioned fitting is not released by screwing that is configured so that it can be screwed from the same direction.

  However, it becomes heavy because the base unit has a configuration including a base frame, an elevating frame, and a table portion, and becomes heavy because the elevating unit has a configuration including an elevating drive mechanism in the housing, It cannot be easily assembled on site. Moreover, since a tool is used for screwing, the lifting device for a wheelchair cannot be easily assembled on site.

Japanese Patent No. 4644867

  This invention is made | formed in view of the said background art, and it aims at enabling it to assemble a lifting apparatus for wheelchairs easily on the spot.

The present invention relates to a wheelchair for a lifting device comprising a base frame portion and the table portion and the X-shaped frame section as a component for assembling on site, the table portion is a plate-like shape having a wide loading the wheelchair, the A pair of X-shaped frame portions are provided on the left and right sides, and an intersection driving portion is rotatably connected by a shaft member. The first and second fitting portions are provided on the portion, the third to sixth fitting portions are provided on the four ends of the X-shaped frame portion, and the seventh and eighth fitting portions are provided on the base frame portion. A fitting part is provided, and the fifth fitting part of the X-shaped frame part and the seventh fitting part of the base frame part are fitted together, and the sixth fitting part of the X-shaped frame part and the base frame Part 8 fitting And the third fitting portion of the X-shaped frame portion and the first fitting portion of the table portion are fitted to each other, and the first fitting portion and the third fitting portion are fitted. The table portion is rotated to the X-shaped frame portion side with the portion as a rotation center, and the fourth fitting portion of the X-shaped frame portion and the second fitting portion of the table portion are fitted to each other. The table part is assembled on the X-shaped frame part placed on the base frame part .

  The present invention can be easily assembled at a site where a lifting device for a wheelchair is installed without using a tool.

The schematic diagram which decomposed | disassembled and showed the base frame part, the table part, the raising / lowering frame part, the drive force generation | occurrence | production part, and connection component as an assembly part in the field of the lifting apparatus for wheelchairs concerning the form for inventing. The schematic diagram which shows the assembly structure of the base frame part which concerns on the form for inventing, and a drive force generation | occurrence | production part. The schematic diagram which shows the assembly structure of the base frame part and raising / lowering frame part which concerns on the form for inventing. The schematic diagram which shows the assembly structure of the table part which concerns on the form for inventing, and a raising / lowering frame part. The schematic diagram which shows the assembly structure of the table part which concerns on the form for inventing, and a raising / lowering frame part.

  With reference to FIG. 1, the lifting apparatus 1 for wheelchairs concerning the form for inventing is demonstrated. The wheelchair lifting device 1 shown in FIG. 1 includes a base frame part 2, a table part 3, a lifting frame part 4, a driving force generating part 5, and a connecting part 6 as parts separately assembled as parts to be assembled on site. . The base frame portion 2, the table portion 3, the elevating frame portion 4 and the driving force generating portion 5 are constructed so that they can be assembled with each other by an artificial operation that does not require tools. The elevator apparatus 1 can be easily assembled on site.

  The base frame portion 2 has a rectangular frame shape in plan view placed on the site, and includes a storage portion 7, a guide rail portion 8, and an installation positioning portion 9. The installation positioning unit 9 may not be provided, but since the installation positioning unit 9 is provided in the base frame unit 2, the installation positioning unit 9 can appropriately determine the installation position of the base frame unit 2. It is not necessary to correct the position of the lifting device, and the wheelchair lifting device 1 is appropriately installed at the installation position.

  The table portion 3 has a plate shape having a size on which a wheelchair is placed, and includes a catch portion 11 and a receiving portion 12. The catch portion 11 includes a catch base portion 13 attached to the table portion 3, a catch arm portion 14 provided on the catch base portion 13 so as to be opened and closed, and an operation portion 15 that controls opening and closing of the catch arm portion 14. The catch portion 11 can be opened and closed by a human operation. Further, since the operation unit 15 is configured to be operable on the end side of the table unit 3, the operation unit 15 is easily operated. The receiving part 12 is a guide rail part.

The elevating frame unit 4 includes an X-shaped frame unit 16 that supports the table unit 3 and an elevating drive unit 17. A pair of X-shaped frame portions 16 are provided on the left and right sides, and an intersection portion of two rod members is connected by a shaft member 18 so as to be rotatable. An upper end portion of the X-shaped frame portion 16 includes a catched portion 19 and a received portion 20. The catched portion 19 is a horizontal member that joins the left and right X-shaped frame portions 16. The receiving part 20 is a roller part . At the lower end portion of the X-shaped frame portion 16, a protruding portion 21 and a roller portion 22 are provided. Since the fixture 23 is attached to the X-shaped frame portion 16 by the connecting member 24, the fixture 23 is prevented from being lost. As the fixture 23, a snap ring is provided at one end of a rod-like or cylindrical member, a through-hole is provided at one end of the rod-like or cylindrical member, and a snap pin is detachably provided in the through-hole. A configuration is used.

  The elevating drive unit 17 uses a hydraulic cylinder unit that converts the hydraulic pressure supplied from the driving force generation unit 5 via the hydraulic circuit into a linear motion and drives expansion and contraction. The bottom part of the container part 25 is arranged so that the height of the X-shaped frame part 16 from the base frame part 2 is increased or decreased by the expansion and contraction of the output part 26 which is a piston rod part with respect to the container part 25 of the elevating drive part 17. A distal end portion of the output portion 26 is rotatably connected to the X-shaped frame portion 16.

  The connecting component 6 constitutes a hydraulic circuit that connects the output unit 30 of the driving force generator 5 and the input unit 27 of the elevating drive unit 17, and is removed from one or both of the output unit 30 and the input unit 27. It is a configuration.

  In the case where the connecting component 6 is detached from one of the driving force generating unit 5 and the lifting / lowering driving unit 17, a joint portion 35 that can be attached and detached with one touch is provided at the end of the detached connecting component 6. The end of the connection component 6 is assembled to the output unit 30 or the input unit 27. In the case where the connecting component 6 is removed from both the driving force generation unit 5 and the lifting drive unit 17, both ends of the connecting component 6 are provided with joint portions 35 that can be attached and detached by a tool-free artificial operation. By fitting the joint part 35 into the output part 30 or the input part 27, the lock part supported elastically inside the container part of the joint part 35 is coupled to the output part 30 or the input part 27. When a person operates an operation unit provided outside the unit, the coupling is released and the joint unit 35 can be extracted from the output unit 30 or the input unit 27.

  As the driving force generator 5, a hydraulic pump that moves manually and sends hydraulic oil to a hydraulic circuit without using power such as electricity is used. The container portion 29 of the driving force generating portion 5 includes an artificial pedal portion 31 and an attachment portion 32. When the pedal part 31 is artificially operated, the hydraulic pump part built in the container part 25 sends out the hydraulic oil from the oil outlet part. The attachment portion 32 is provided with a fitting portion 33 and a fixture 34.

  With reference to FIG. 2 thru | or FIG. 5, the assembly method of the lifting apparatus 1 for wheelchairs is demonstrated. As shown in FIG. 2, the fixture 34 of the driving force generator 5 has a configuration in which a male screw part 36 is provided with a knob 37. The base frame portion 2 is provided with a fixture 38. The to-be-fixed tool 38 includes a collar portion 40 at the upper end portion of the cylindrical portion 39. And the cylinder part 39 is mounted | worn from the upper part in the hole 41 provided in the upper wall part of the base frame part 2, and the collar part 40 was received around the hole part 41 of the upper wall part of the base frame part 2. It is. As the fixture 38, a blind nut, a screw hole portion having a female screw in the base frame portion 2, a structure in which a female screw is formed in a cylindrical portion formed by burring in the base frame portion 2, and the like are applicable.

The method of assembling the driving force generating unit 5 and the base frame unit 2 is placed on the site where the base frame unit 2 is to install the wheelchair lifting device 1. A concave fitting that is recessed upward from the bottom provided on the mounting portion 32 of the driving force generating portion 5 so that the fixing member 34 of the driving force generating portion 5 and the fixed member 38 of the base frame portion 2 are aligned. The portion 33 is fitted into the base frame portion 2. When the knob 37 of the fixture 34 is rotated by a person, the male screw portion 36 of the fixture 34 is fastened to the female screw portion provided on the inner surface portion of the cylindrical portion 39 of the fixture 38. As a result, the assembly of the driving force generator 5 and the base frame 2 is completed.

  As shown in FIG. 3, the base frame portion 2 and the lifting frame portion 4 are assembled by placing the protrusion 21 on the lower end side of the lifting frame portion 4 on the site where the wheelchair lifting device 1 is to be installed. The base frame portion 2 is accommodated in the accommodating portion 7. Thereafter, the fixing tool 23 from which the snap pin has been removed is mounted in a hole (not shown) provided in the housing portion 7, so that the fixing device 23 prevents the protrusion 21 from coming off from the housing portion 7. Then, by attaching the snap pin to the fixture 23, the fixture 23 is prevented from falling off from the accommodating portion 7. A roller portion 22 on the lower end side of the elevating frame portion 4 is fitted into the guide rail portion 8 of the base frame portion 2 so as to be linearly movable in the direction of one end and the other end. Thereby, the assembly of the base frame portion 2 and the lift frame portion 4 is completed.

  As shown in FIG. 4, the table portion 3 and the lifting frame portion 4 are assembled by the receiving portion 20 as a roller portion on the upper end side of the lifting frame portion 4 being a receiving portion as a guide rail portion of the table portion 3. 12 is fitted so as to be linearly movable in the direction of one end and the other end. In this case, the opening of the catch arm portion 14 of the catch portion 11 of the table portion 3 faces obliquely downward. When the catch portion 11 side of the table portion 3 is pushed downward by a person, the catch arm portion 14 of the catch portion 11 of the table portion 3 moves from the opening portion to the catch arm portion 14 on the upper end side of the lifting frame portion 4. The catch part 19 is captured. Thereby, as shown in FIG. 5, the assembly of the table unit 3 and the lifting frame unit 4 is completed. In this state where the table unit 3 is attached to the elevating frame unit 4, when the operation unit 15 is operated by a person, the catch arm unit 14 is detached from the catched unit 19, and the receiving unit 12 is received by the received unit 20. When the table unit 3 is operated by a person so as to be removed from the table, the table unit 3 and the lifting frame unit 4 can be disassembled.

  That is, the receiving portion 12 and the received portion 20 are fitted to each other, and the table portion 3 is rotated to the lifting frame portion 4 side with the fitting portion composed of the receiving portion 12 and the received portion 20 as a rotation center. As a result, the catch part 11 captures the catched part 19 and the table part 3 is assembled to the lifting frame part 4, while the catch part 11 is opened in a state where the table part 3 is assembled to the lifting frame part 4. When operated, the fitting with the catched portion 19 is released, and the table portion 3 is rotated to the side away from the lifting frame portion 4 with the fitting portion composed of the receiving portion 12 and the received portion 20 as the rotation center. Thus, the table unit 3 is detached from the lifting frame unit 4, so that the table unit 3 can be assembled to the lifting frame unit 4 or removed from the lifting frame unit 4 without using a tool. Ridekiru.

  As described above, the lifting device 1 for a wheelchair according to the embodiment for carrying out the invention is assembled by the fixture 34 having the base frame part 2 and the driving force generating part 5 as the parts to be assembled on the site and having the knob 37. In addition, the table portion 3 and the elevating frame portion 4 as parts to be assembled in the field are not required to be assembled by fitting including the receiving portion 12 and the receiving portion 20 and fitting including the catch portion 11 and the caught portion 19. The structure is detachable with one touch, and the output unit 30 as the output unit of the driving force generating unit 5 and the input unit 27 as the input unit of the elevating frame unit 4 can be connected by a human-free operation without tools. Since it is connected by the connecting component 6 having the joint portion 35, the wheelchair lifting device 1 can be easily assembled on site.

  As shown in FIG. 1, the receiving portion 12 and the catch portion 11 are provided on the table portion 3, and the received portion 20 and the caught portion 19 are provided on the elevating frame portion 4. 11 is provided in the elevating frame part 4, and the receiving part 20 and the caught part 19 are provided in the table part 3.

  As the driving force generation unit 5, an electric pump may be used in addition to the hydraulic pump unit that moves manually. However, if the hydraulic pump unit moves manually, power is saved. Moreover, although the thing using a hydraulic pressure was illustrated as what raises / lowers the raising / lowering frame part 4, it may drive with the electric power which does not use a hydraulic pressure, but if it uses a hydraulic pressure, it will save power. Become. In the case of driving with electric power that does not use hydraulic pressure, the driving force generation unit 5 becomes a control unit that controls the elevating drive unit 17, the elevating drive unit 17 becomes an electric actuator unit such as an electric cylinder unit, and the connecting component 6 is Become an electric wire.

1 is a lifting device for a wheelchair, 2 is a base frame portion, 3 is a table portion, 4 is a lifting frame portion, 5 is a driving force generating portion, 6 is a connecting part, 7 is a housing portion, 8 is a guide rail portion, and 9 is installed Positioning part, 10 is a missing number, 11 is a catch part, 12 is a receiving part, 13 is a catch base part, 14 is a catch arm part, 15 is an operation part, 16 is an X-shaped frame part, 17 is an elevating drive part, 18 is a shaft Member, 19 is a catched part, 20 is a received part, 21 is a projection part, 22 is a roller part, 23 is a fixture, 24 is a connecting member, 25 is a container part, 26 is an output part, 27 is an input part, 28 Is a missing part, 29 is a container part, 30 is an output part, 31 is a pedal part, 32 is an attachment part, 33 is a fitting part, 34 is a fixture, 35 is a joint part, 36 is a male thread part, 37 is a knob part, 38 Is a fixture, 39 is a cylinder part, 40 is a collar part.

Claims (4)

A wheelchair for a lifting device comprising a base frame portion and the table portion and the X-shaped frame section as a set viewing stand parts,
The table portion is plate-shaped having a size for mounting a wheelchair;
The X-shaped frame part is provided with a pair of right and left and an elevator driving part that is connected to the intersection part so as to be rotatable by a shaft member and that moves the table part up and down with respect to the base frame part,
The table portion is provided with first and second fitting portions,
Third to sixth fitting portions are provided at four ends of the X-shaped frame portion,
The base frame portion is provided with seventh and eighth fitting portions,
A fifth fitting portion of the X-shaped frame portion and a seventh fitting portion of the base frame portion are fitted to each other;
The sixth fitting part of the X-shaped frame part and the eighth fitting part of the base frame part are fitted together,
The third fitting part of the X-shaped frame part and the first fitting part of the table part are fitted together,
The table portion is rotated to the X-shaped frame portion side with the fitting portion of the first fitting portion and the third fitting portion as a rotation center, whereby the fourth fitting of the X-shaped frame portion is performed. said second fitting portion of the table portion is fitted together with the parts, wheelchair the table portion you characterized in that it is assembled on the X-shaped frame portion placed on the base frame part Lifting device. After the sixth fitting portion and the eighth fitting portion are fitted to each other, a fixture is mounted in a hole provided in the eighth fitting portion, and the sixth fitting portion and the eighth fitting are mounted. The wheelchair lifting device according to claim 1, wherein the lifting device for the wheelchair can be easily assembled. It said fastener lifting apparatus for wheelchair according to claim 2, characterized in that mounted in the connecting member to the X-shaped frame. A driving force generator for applying a driving force to the elevating driving unit is detachably attached to the base frame unit, and an output unit of the driving force generating unit and an input unit of the elevating driving unit are connected by a connecting component. wheelchairs for lifting device according to claim 1, wherein.

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