JP2008184289A - Drawer lift device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drawer lift device capable of facilitating a drawing operation and a lifting operation by a single driving device. <P>SOLUTION: The drawer lift device is provided with a supporting mechanism for supporting an object having a pair of supporting frames 6 in which at least two arms 5 are bendably connected, a retractable mechanism having a pair of retractable frames 3 for driving the object in a horizontal direction and a lifting mechanism having a pair of lifting frames for driving the object in a vertical direction at a predetermined position. The object is lifted at the predetermined position by rotatably attaching an end of the pair of supporting frames to the object and the other end to the lifting frames 4, connecting an end of the pair of lifting frames to a driving motor 29, contacting an end of the pair of retractable frame with at least one of the arms of the pair of supporting frames and making the object retractable by parallely driving the pair of retractable frames and the pair of lifting frames in a horizontal direction by the driving motor. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a drawer elevating device, which relates to a drawer elevating mechanism that allows a drawer body to be moved up and down and an elevating unit to be raised and lowered by a single driving device.

  Conventionally, when people move down from a house to the ground with a step and move to a vehicle, or when loading or unloading luggage, it is necessary to go over the steps, especially for elderly people It was very inconvenient for wheelchair users.

  In view of this, there has been proposed a step-resolving lift that makes it possible to overlap a support body that can be raised and lowered in a horizontal direction with an indoor floor portion, and that facilitates travel between the support body and the indoor floor portion (see Patent Document 1). ).

  In addition, a stair lift device for wheelchairs has been proposed that allows climbing of stairs while riding on a wheelchair and prevents it from getting in the way when not in use (see Patent Document 2).

Japanese Patent Application No. 2002-114491 Japanese Patent Application No. 2004-35173

  However, in the case of the step eliminating elevator proposed in Patent Document 1, a wheelchair user can be moved from the indoor floor to the outdoors or a car by a linear slide mechanism, a turning mechanism, and a lifting mechanism. In addition, there is a problem that a driving device is required for each of the linear slide, turning, and lifting operation, and incidental facilities are required depending on the installation location.

  Moreover, in the case of the wheelchair stair lifting device proposed in the above-mentioned Patent Document 2, it is built in freely under the floor surface corresponding to the uppermost step of the staircase, and can move up and down a staircase with a step while riding on the wheelchair. In addition to the large equipment required depending on the installation location (the height of the stairs, etc.), there is a problem that the construction takes a lot of time and money.

  The present invention has been made in view of these problems, and further improves and develops Japanese Patent Application No. 2004-26154 “Cantilevered Support Structure of Drawer” previously filed by the present inventor, with a single drive device. It is an object of the present invention to provide a drawer lifting device that can be pulled out and lifted and that is easy to construct.

  For this reason, the drawer lifting apparatus of the present invention has a pair of support frames in which at least two arms are flexibly connected, a support mechanism for supporting the object, and a pair of protrusions and depressions for driving the object in the horizontal direction. A raising / lowering mechanism having a frame and an elevating mechanism having a pair of elevating frames for driving the object in a vertical direction at a predetermined position, and having one end of the pair of support frames as an object and the other end as an elevating frame. One end of the pair of lifting frames is connected to a drive motor, and one end of the pair of intrusion frames is in contact with at least one of the arms of the pair of support frames. And a pair of elevating frames are driven in parallel in the horizontal direction to cause the object to appear and disappear, and the pair of elevating frames are stopped at a predetermined position. Driven in horizontal direction, the abutment of the support frame and the retractable frame, pivoting of the supporting frame, and by bending, the first characterized by raising and lowering the controls.

  In addition, the second feature is that the full load of the pair of in / out frames, the pair of elevating frames and the pair of support frames is supported using a rotary drive device connected to the drive motor as a fulcrum.

  The drawer lifting device having the above-described configuration is installed under the floor of a house or outdoors, and can be pulled out and used by a luggage, an elderly person, or a wheelchair user when necessary.

The drawer lifting device according to the present invention has the following excellent effects.
(1) Since one end of the pair of intruding frames is slidably brought into contact with at least one of the arms of the pair of supporting frames, the supporting frame is separated from the intruding frames by the horizontal drive of the lifting frame by a drive motor. It can be rotated while abutting to allow the wheelchair user to move up and down.
(2) In order to support the full load of the pair of retracting frames, the pair of lifting frames and the pair of support frames with a gear meshing with the drive motor as a fulcrum, the pair of lifting frames are horizontally mounted with a single driving device. By driving the pair of frames, the pair of intrusion frames and the pair of support frames can be horizontally pulled out and driven simultaneously, so that the structure is simple and the time and cost for construction can be reduced.

  Hereinafter, although the drawer raising / lowering apparatus of this invention is demonstrated based on an Example, it cannot be overemphasized that this invention is not limited to a present Example. FIG. 1 is an explanatory diagram showing an example of use of the drawer lifting device of the present invention, FIG. 2 is an explanatory diagram showing a storage state, FIG. 3 is an explanatory diagram showing a pulled-out state, and FIG. 5 is a cross-sectional explanatory view of the main part of FIG. 2, FIG. 6 is an enlarged explanatory view of the main part of FIG. 3, and FIG. 7 is an enlarged explanatory view of the main part of FIG.

  As shown in FIGS. 1 to 5, the drawer lifting apparatus 1 according to the present invention includes a storage unit 2, a pair of in / out frames 3 that horizontally drive the inside of the storage unit 2, and a pair of in-and-out frames 3 that are driven in parallel. The elevating frame 4, the pair of supporting frames 6 having two L-shaped elevating arms 5 that are pivotally connected to the elevating slam 4, the elevating floor 7 supported by the supporting frame 6 and elevating, and the elevating It is composed of a drive mechanism 8 that drives the frame 4 in the horizontal direction, is inserted and installed in the lower part of a house, etc., and the retracting frame 3 and the lifting frame 4 can be retracted by a remote control device (not shown). The support frame 6 is rotated by the horizontal drive of the elevating frame 4 at a predetermined position so that the elevating floor frame 7 can be raised and lowered.

  2 to FIG. 5, FIG. 2 is an explanatory view showing a storage state of the in / out frame 3 and the elevating frame 4, and FIG. 3 is an explanatory view showing a state in which the in / out frame 3 and the elevating frame 4 are pulled out. 2 (a) and 3 (a) are side explanatory views, and FIG. 2 (b) and FIG. 3 (b) are plan explanatory views. 5 is a cross-sectional explanatory view of the main part of FIG. 2, FIG. 5 (a) is a cross-sectional explanatory view of the A part of FIG. 2, FIG. 5 (b) is a cross-sectional explanatory view of the B part of FIG. These are C section cross-sectional explanatory views of FIG.

  As shown in the figure, the storage unit 2 includes a pair of side plates 9, a storage unit joining member 10 that connects the upper and lower ends of the side plate 9, and an upper and lower bracing frame 11 that prevents distortion of the storage unit 2. It is formed in a substantially box-like body whose both end faces are open. Further, two pairs of fixed door pulleys 12 are attached to the upper part of the inner side surface of the side plate 9 so as to engage with the upper surface portion of the intruding frame 3 to assist horizontal driving of the intruding frame 3. And the drive mechanism 8 is provided in the center lower part of the accommodating part 2, and the protrusion frame 3 and the raising / lowering frame 4 are driven to a horizontal direction by the drive of the geared motor 29 mentioned later. Furthermore, a drive speed limiter 13, an in / out frame storage stop limiter 14, an up / down frame stop limiter 15, and an in / out frame control pin 16 are provided at predetermined positions in the storage unit 2, respectively. And restrict the driving position. Examples of the material used for the storage unit 2 include steel, wood, and aluminum alloy.

  The intruding frame 3 is composed of a pair of opposed long plates, and an end connecting member 20 is attached orthogonally to the rear end of the intruding frame 4, and the end connecting member 20 can be expanded and contracted with a lifting frame 4 described later. A pair of attracting members 26 connected to each other are attached at a predetermined interval. Further, two pairs of elevating contact members 36 that rotate by engaging with the support frame 6 are attached to the lower portion on the front end side of the intruding frame 3 so as to face each other and are connected by the elevating contact connecting members 17. . Then, a plurality of fixed door wheels 18 are rotatably attached to predetermined positions of the in / out frame 3 so as to face each other and engage with a lifting frame 4 described later. Further, a sensing bar 30 for operating the drive speed limiter 13 is provided in the lower part on the rear end side of the in / out frame 3, and a detection bar 31 for operating the in / out frame storage stop limiter 14 is provided in the lower part of the center. The drive speed by 8 and the drive position of the appearing frame 3 are regulated. The intruding frame 3 is not limited to a long plate having a fixed length, but may be a square pipe or an extendable member.

  The elevating frame 4 is composed of a pair of long steel bodies having a U-shape that engages with the fixed door wheel 18 of the above-described intrusion frame 3 from above and below, and the end connecting member 20 is orthogonal to the rear end thereof. A pulling member 26 connected to the retracting frame 3 is attached to the rear portion of the elevating frame 4 so as to face each other. In addition, a plurality of connecting members 21 are attached orthogonally at arbitrary positions in the longitudinal direction. And the V-shaped rail 19 is attached to the lower part of the raising / lowering frame 4 in parallel with a longitudinal direction, respectively, and it engages with the drive fixed door wheel 22 of the drive mechanism 8 mentioned later. Further, the pair of support frames 6 are attached to the vicinity of the front end portion in the longitudinal direction via bearings 23, and a sensing bar 32 for operating the elevating frame stop limiter 15 is provided on the upper rear end in the longitudinal direction. A push-up lever 24 for operating the in / out frame control pin 16 is provided at the rear end of the up / down frame 4 and is used when a drawer operation is performed in the storage unit 2 of the in / out frame 3 and the up / down frame 4 described later.

  The support frame 6 is composed of two L-shaped lifting arms 5 having their bent portions rotatably connected by an arm connecting member 25 and one end rotating to the lifting frame 4 via a bearing 23. The other end is rotatably connected to the lift floor 7 via a bearing 23. The raising / lowering contact member 36 of the raising / lowering frame 3 comes into contact with the raising / lowering arm 5, and the driving mechanism 8 drives the L-shaped raising / lowering arm 5 to rotate up and down the raising / lowering floor 7. The in / out frame 3, the lifting frame 4, and the support frame 6 are all made of steel, wood, aluminum alloy, or the like.

  The elevating floor 7 is a rectangular steel plate material having a strength and size that allows wheelchairs and luggage to get on and off, and is sandwiched horizontally by the support frame 6 and attached via bearings 23. The doors 27 to be used are attached upright in the front and rear, and fall prevention fences 28 are attached on the left and right sides thereof. Both the door 27 and the fall prevention fence 28 are made of metal such as wooden or aluminum, and can be folded or removed. Moreover, the material of the elevating floor 7 is not limited to steel but may be wood, aluminum alloy, or the like.

  The drive mechanism 8 includes a geared motor 29 attached to the lower center of the storage unit 2, a drive bevel gear 33 that transmits the rotation of the geared motor 29, a drive rotary shaft 34, a drive fixed door wheel 22, and a drive rotation. A pair of bearing pillows 35 that hold the shaft 34, and the drive fixed door wheel 22 is driven by the rotation of the geared motor 29, and the lift frame 4 is driven via the V-shaped rail 19. The intrusion frame 3 engaged by the fixed door wheel 18 is driven in parallel, and only the elevating frame 4 is driven at a predetermined position to rotate the support frame 6 to elevate the elevating floor 7. Various control devices can be used to control the drive mechanism 8, and the operation can be performed by a remote control such as a remote control. That is, all the loads of the elevating frame 4, the raising / lowering frame 3 and the support frame 6 are supported with the driving fixed door wheel 22, which is a rotary driving device connected to the geared motor 29 of the driving mechanism 8, as the fulcrum, and the raising / lowering frame 4 is driven to move in and out. While raising and lowering the frame 3, the support frame 6 is rotated to raise and lower the elevating floor 7. Here, the drive fixed door wheel 22 which is a rotation drive device may be a gear, and the V-shaped rail 19 may be a toothed rail.

  Next, the operation of the drawer lifting apparatus 1 of the present invention will be described with reference to FIGS. FIG. 2 shows a state in which the drawer lifting device 1 is most stored in the storage portion 2, and the user can open and close the door 27 and get on the lifting floor 7 at this position. Then, a remote device (not shown) such as a remote controller is operated to rotate the geared motor 29 to rotate the drive fixed door wheel 22 via the drive bevel gear 33 to engage the drive fixed door wheel 22. The elevating frame 4 having the rails 19 is driven in the horizontal direction. Here, the elevating frame 4 is engaged with the fixed door wheel 18 of the intruding frame 3 from above and below, and the elevating frame 4 is driven in parallel in the horizontal direction when the elevating frame 4 is driven, as shown in FIG. The appearing frame 3 and the lifting frame 4 move to the end of the storage unit 2.

  6 is an enlarged explanatory view of the vicinity of the storage unit 2 in FIG. 3, FIG. 6 (a) is a side explanatory view, and FIG. 6 (b) is a plan view. FIG. 6A shows a state in which the sensing bar 30 of the frame 3 that has been horizontally driven to the end of the storage unit 2 by the rotation of the geared motor 29 has actuated the driving speed limiter 13. The rotation speed of the geared motor 29 is controlled by the limiter 13. When the elevating frame 4 is further driven, as shown in FIG. 7, the appearance frame control pin 16 provided in the storage portion 2 is disengaged from the elevating frame 4 and is engaged with the rear end portion of the appearance frame 3. Thus, the drive of the in / out frame 3 is restricted, and only the elevating frame 4 can be driven. Then, as shown in FIG. 4, the support frame 6, which is pivotably connected to the elevating frame 4, rotates while being in contact with the two pairs of elevating contact members 36 provided at the lower end of the front and rear frame 3. Then, the elevating floor 7 that is sandwiched and attached horizontally to the support frame 6 is moved up and down. At this time, the lifting frame 4 is pulled by a pair of pulling members 26 that connect the rear portion of the lifting frame 4 and the rear connecting member 20 of the intruding frame 3 to adjust the lifting of the lifting floor 7. Here, the lift position of the lift floor 7 is regulated by the operation of the lift frame stop limiter 15 by the sensing bar 32. In addition, the raising / lowering speed of the raising / lowering floor 7 is previously controlled by the said drive speed limiter 13 and the control apparatus which is not shown in figure so that it may become an optimal speed.

  When the drawer elevating device 1 is stored in the storage unit 2, the operation opposite to the above operation is performed. First, the geared motor 29 is rotated in the opposite direction to drive the elevating frame 4 to move the elevating floor 7 Raise and lower. Next, as shown in FIG. 6A, the raising / lowering frame control pin 16 that engages with the raising / lowering frame 3 is moved upward by the push-up lever 24 provided at the rear end portion of the lifting frame 4 to release the engagement. The in / out frame 3 can be driven and is moved in the direction of the storage unit 2 by being driven in parallel with the elevating frame 4. Further, as shown in FIG. 2, the turning operation of the geared motor 29 is stopped by operating the retracting frame storage stop limiter 14 by the sensing bar 31.

  According to the drawer lifting / lowering device 1 of the present invention having the above-described configuration, the lifting / lowering frame 4 is driven in the horizontal direction by the rotation of the single drive geared motor 29 and is engaged by the lifting / lowering frame 4 and the fixed door wheel 18. 3 can be driven in parallel. Moreover, in the state where the in / out frame 3 is stopped by the in / out frame control bin 16, only the elevating frame 4 is driven to rotate the support frame 6 that is pivotably connected to the elevating frame 4 to move the elevating floor 7 in the vertical direction. Can be moved up and down. As a result, the user can safely and easily enter and exit from the entrance / exit of a house or the like with a step using the elevating floor 7.

  As described above, the drawer lifting device according to the present invention is provided under the floor of the house or outdoors, where it is not used at all times, and the user pulls out the raising / lowering frame to a predetermined position by remote control using a remote controller or the like when necessary. It is easy to move from a doorway with a level difference by swinging up and down and getting on and off. In addition, a side plate and a transfer floor plate are rotatably provided on the elevating floor portion, and the user can be safely moved from a doorway with a step. The drawer lifting device is not only installed and used under the floor of a house, but also can be used effectively for moving from a structure with a step or an inconvenient place to go in and out.

  The drawer lifting apparatus according to the present invention is not only suitable for a wheelchair or a user who needs nursing care as a means of moving from the outdoors or indoors to the outdoors, but can also be effectively used for loading or unloading luggage on a car.

It is usage explanatory drawing which shows the usage example of the drawer raising / lowering apparatus of this invention. It is explanatory drawing which shows the accommodation state of the drawer raising / lowering apparatus of this invention. It is explanatory drawing which shows the state which the drawer raising / lowering apparatus of this invention pulled out. It is explanatory drawing which shows the raising / lowering state of the drawer raising / lowering apparatus of this invention. FIG. 3 is an explanatory cross-sectional view of a main part of FIG. 2. FIG. 4 is an enlarged explanatory view of a main part of FIG. 3. FIG. 5 is an enlarged explanatory view of a main part of FIG. 4.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drawer raising / lowering device 2 Storage part 3 Elevating frame 4 Elevating frame 5 L-shaped raising / lowering arm 6 Support frame 7 Elevating floor 8 Drive mechanism 9 Side plate 10 Storage part joining member 11 Upper and lower bracing frame 12 Extruding frame support fixed door 13 Drive Speed limiter 14 In / out frame storage stop limiter 15 Elevating frame stop limiter 16 In / out frame control pin 17 Elevating contact connecting member 18 Fixed door 19 V-shaped rail 20 End connecting member 21 Connecting member 22 Drive fixed door wheel 23 Bearing 24 Push-up lever 25 Arm connecting member 26 Pulling member 27 Door 28 Fall prevention fence 29 Geared motor 30, 31, 32 Sensing bar 33 Drive bevel gear 34 Drive rotating shaft 35 Bearing pillow 36 Lifting contact member

Claims (2)

  A support mechanism for supporting a target object having at least two arms flexibly connected to each other; a support mechanism for driving the target object in a horizontal direction; A pair of elevating mechanisms that drive a pair of elevating frames in a vertical direction at a predetermined position, one end of the pair of support frames being attached to an object, and the other end being rotatably attached to the elevating frame. One end of the pair of support frames is connected to at least one of the arms of the pair of support frames, and the pair of support frames and the pair of lifting frames are horizontally moved by the drive motor. Drive in parallel to move the object in and out, stop the pair of frames at a predetermined position, and drive only the pair of lifting frames in the horizontal direction to support the frame. Abutment of the frame, pivoting of the supporting frame, and by bending, drawer lifting device, characterized in that for lifting the controls.   2. The drawer lifting device according to claim 1, wherein the full load of the pair of intrusion frames, the pair of lifting frames, and the pair of support frames is supported by a rotation driving device that is connected to the driving motor as a fulcrum.

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