JP4071600B2 - Wheelchair fixing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a wheelchair to transport piled like a vehicle relating to a wheelchair fixation device for fixing the wire.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a wheelchair fixing device has appeared as a load fixing device for fixing a load when the vehicle is loaded with a load and transported (see, for example, Patent Document 1). In this wheelchair fixing device, a fixing mechanism for fixing a user on the floor of a vehicle while being placed on the wheelchair is provided. Four winding mechanisms of the fixing mechanism are arranged in the storage case, and each winding mechanism winds up a support wire having a hook, and arranges the hooks of the support wire so as to correspond to the four corners of the storage case. .
[0003]
[Patent Document 1]
JP 11-47193 A (page 2-4, FIG. 1)
[0004]
[Problems to be solved by the invention]
With this wheelchair fixing device, when fixing the wheelchair to the floor, the four support wires must be pulled out from the take-up mechanism, and the four hooks must be hooked on the wheelchair frame one by one. It takes a long time and is inconvenient. In particular, when it is necessary to repeat the operation of hooking and unhooking the wheelchair, it takes time and the workability tends to be lowered.
[0005]
The present invention has been made in view of the above matters, the wheelchair securing its purpose requires the wheelchair securing work can be fixed to the floor of the vehicle in a short time by a simple operation, in which the workability is on improvement To provide an apparatus.
[0006]
[Means for Solving the Problems]
In the wheelchair fixing device according to the present invention, the pair of left and right first winding mechanisms and the pair of left and right second winding mechanisms are stored in a storage case that is substantially flush with the floor of the vehicle on which the wheelchair is fixed. Yes. The wires are wound around the pair of left and right first winding mechanisms and the pair of left and right second winding mechanisms by the biasing force of the spring, respectively, and are pulled out through the turning pulley while resisting the biasing force of the spring. The mounting portion is formed of a connecting portion and a curved gripping portion, and the connecting portion is the first winding of the wires connected to the pair of left and right first winding mechanisms and the pair of left and right second winding mechanisms. A pair of left and right front and rear hook portions from the left side of the winding mechanism and the second winding mechanism, and a right and left pair of hook portions from the right side of the first winding mechanism and the right side of the second winding mechanism are formed on the left and right. It is hooked and connected to the projected part . The curved gripping portion is formed by branching upward from the connecting portion, and is detachably mounted on the left and right cross frame provided on the wheelchair. The wheelchair is fixed to the floor by attaching the left and right grips to the left and right crosspiece frames, respectively.
[0007]
Operation and effect of the invention
(About claim 1)
Mounting portion is formed from the connecting portion and a curved grip portion, the connecting portion has a hook portion of the wire from the left and right pair of first winding mechanism and the left and right pair of second winding mechanism connected respectively. Therefore, when fixing the wheelchair may be fitted with a grip portion is pulled out at the same time the wire from the left and right pair of first winding mechanism and the left and right pair of second winding mechanism wheelchair rungs frame removed the mounting portion. This makes it possible to quickly fix the wheelchair to the floor with a simple operation, unlike the conventional method where four wires are pulled out from each winding mechanism and hooks are hooked on the wheelchair one by one. Time is sufficient and workability can be greatly improved.
Since the wires from the pair of left and right first winding mechanisms and the pair of left and right second winding mechanisms are connected to the left and right attachment portions, the left and right gripping portions are attached to the left and right crosspiece frames when the wheelchair is fixed. That's fine. For this reason, unlike the conventional case where it is necessary to hook the four hooks four times one by one when the wheelchair is fixed, the wheelchair can be fixed quickly in a short time with only two left and right mounting operations.
[0008]
(About claim 2)
In the mounting portion of the housing case, the grip portion of the connecting portion hooked hook portion via the protrusions wheelchair fixed, doing so worn on the left and right rail frame which is provided in a wheelchair, along rail frame Since the slide adjustment is possible, the wheelchair can be fixed to the wheelchair fixing device at an arbitrary position and with a substantially uniform tension distribution. Thereby, it is not necessary to align the wheelchair by moving and adjusting the wheelchair fixing device when the wheelchair is fixed. Also from this point, the wheelchair can be fixed to the floor quickly and quickly, and good workability can be obtained.
[0009]
(Claim 3)
Hooking the hook portion of the wire to the projections of the consolidated portion of the mounting portion, the mounting plate is attached by screws, securing the hook portion of the wire by a screw. By loosening the screw, the hook part can be removed, so that the hook part can be disassembled so that it can be disassembled, and in the event of an emergency, the wire can be removed from the conjoining part by disassembly and the wheelchair can be released.
[0011]
(About claim 4 )
Turning pulley are enabled to swing vertically by a wobble plate, when turning pulley with use swings upward, the first winding mechanism of the pair the street wire core via diverting pulleys and a left-right pair The core of the wire extending from the second winding mechanism matches. For this reason, even if the diameter dimension of the turning pulley is small, the bending radius of the wire drawn through the turning pulley through the turning pulley does not become smaller than a predetermined value, and the deterioration of the durability of the wire due to repeated use can be prevented. . Since the turning pulley has a small diameter and is accommodated in the storage case when swinging downward, the turning pulley can be kept thin without increasing the thickness of the storage case.
[0012]
(Claim 5 )
When the grip portion from the left and right pair of first winding mechanism and the left and right pair of second winding mechanism pulling the wire and attached to the wheelchair crossbar frame for fixing the wheelchair, the locking means by the ratchet teeth to stop the withdrawal of wire Provided. This eliminates that the wire will be pulled out inadvertently during fixing, it is possible to reliably fix the wheelchair taut without wire loosening.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
1 to 7 show a first embodiment of the present invention, an example of transporting fixed to the floor 2 of the wheelchair 1 (see FIG. 6) (not shown) box wagon as the vehicle. The rectangular storage case 4 of the wheelchair fixing device 3 is fitted on the floor 2 of the box wagon so as to be substantially flush with the floor 2 as shown in FIGS. 1 and 2. The upper surface opening of the storage case 4 is covered with a protective cover 5. The front part of the protective cover 5 is foldable upper and lower lids 5a and 5b, and the rear part is left and right lids 5c and 5d that can be opened and closed left and right.
[0014]
As shown in FIGS. 3A and 3B, a pair of first winding gears 6 are provided on the left and right as a first winding mechanism in the storage case 4. Is provided with a pair of second winding gears 7 on the left and right as a second winding mechanism. A wire 8 as a rope means is wound around the first winding gear 6 by a spring spring S1 (see FIG. 4), and the tip end portion of the wire 8 is connected to the hook portion 10 via a turning pulley 9. Further, a wire 11 as a rope means is wound around the second winding gear 7 by a spring (not shown), and the tip end portion of the wire 11 is connected to the hook portion 13 via a turning pulley 12. . As shown in FIG. 4, the turning pulley 9 is provided so as to be swingable up and down around a pin 15 by a swing plate 14. When the wire 8 is pulled out from the first winding gear 6 during use, the turning pulley 9 swings upward together with the swinging plate 14 as shown by the arrow A, and is moved from the stowed position shown in FIG. ) To the upward swing position.
[0015]
When the turning pulley 9 is displaced to the upward swing position, the outer periphery of the turning pulley 9 is positioned substantially in line with the central portion of the first winding gear 6, and the core of the wire 8 through the turning pulley 9 and the first core The core of the wire 8 from the winding gear 6 matches. For this reason, even if the diameter dimension of the turning pulley 9 is small, the bending radius of the wire 8 drawn through the turning pulley 9 through the turning pulley 9 does not become smaller than a predetermined value, and the durability of the wire 8 is reduced with repeated use. Can be prevented. The turning pulley 9 can be kept small in thickness without increasing the thickness T of the storage case 4 because the diameter of the turning pulley 9 can be kept small and is stored in the storage case 4 when swinging downward. The turning pulley 12 can swing up and down between the storage position and the upward swinging position by the pin 16 and the swinging plate 17 and operates in the same manner as the turning pulley 9.
[0016]
The hook portions 10 and 13 of the wires 8 and 11 are coated with resin on their surfaces, and are hooked on protrusions 18 a and 18 b formed on the connecting portion 18. The connecting portion 18 integrally forms a curved gripping portion 19 branched to the left and right, and constitutes an attachment portion 20 housed in the housing case 4. As shown in FIG. 5, the attachment plate 21 is attached to the protrusions 18 a and 18 b of the connecting portion 18 by screws 21 a and 21 b, and the hook portions 10 and 13 are fixed to the connecting portion 18. On the other hand, when the screws 21a and 21b are loosened with a dedicated tool or the like, the hook portions 10 and 13 can be detached from the projection portions 18a and 18b, whereby the hook portions 10 and 13 which are the tip portions of the wires 8 and 11 are connected to the connecting portion 18. It is structured to be connected to each other in a releasable manner. The grip portion 19 of the mounting portion 20 is detachably attached to the crosspiece frames 1c and 1d (see FIG. 6) of the wheelchair 1. When attached, the gripper 19 slides along the crosspiece frames 1c and 1d. It is adjustable.
[0017]
A swing arm 23 having ratchet teeth 22 as locking means is attached to the first winding gear 6 of FIG. 3, and the ratchet teeth 22 are engaged with the first winding gear 6 by a spring (not shown). Energized. The ratchet teeth 22 prevent the rotation of the first winding gear 6 in the drawing direction of the wire 8 and the rotation of the first winding gear 6 in the winding direction when engaged with the first winding gear 6. Rotation is allowed. A swing arm 25 having a ratchet tooth 24 as a locking means is also attached to the second winding gear 7, and urged in a direction to engage the ratchet tooth 24 with the second winding gear 7 by a spring (not shown). ing. The ratchet teeth 24 prevent rotation of the second winding gear 7 in the drawing direction of the wire 11 when meshed with the second winding gear 7, and the second winding gear 7 in the winding direction. Rotation is allowed.
[0018]
The swing arms 23, 25 having the ratchet teeth 22, 24 are connected to a longitudinally reciprocating slider 28 via pins 26, 27 located at a substantially central portion of the storage case 4. As the reciprocating slider 28 moves, the ratchet teeth 22 and 24 are engaged with and disengaged from the first winding gear 6 and the second winding gear 7 via the swing arms 23 and 25. The reciprocating slider 28 is connected to a drive motor 33 via a crank arm 29, a drive gear 30, a pinion 31 and a worm gear 32.
[0019]
In the above configuration, for example, when a disabled person is transported by a box wagon as a user, the left and right wheels 1a and 1b straddle the wheelchair fixing device 3 on the wheelchair 1 on which the disabled person is placed as shown in FIG. Line up on floor 2. Next, as shown in FIG. 6A, the upper and lower lids 5a and 5b are folded by an attendant, the attachment portion 20 is taken out from the storage case 4, and the wires 8 and 11 are connected to the first winding gear 6 and the second winding gear. 7 (see FIG. 3). At this time, the left and right lid 5c by a wire 8, 11 drawn, while tilted inwardly rejected bouncing 5d, horizontal wood frame 1c of the wheelchair 1 the grip portion 19 of the mounting portion 20 as shown in (b) of FIG. 6 1d is attached to each.
[0020]
By operating a start switch (not shown), as shown in FIG. 3, the drive motor 33 is rotated forward by energization to rotate the drive gear 30 in the direction indicated by the arrow F via the worm gear 32 and the pinion 31. . As a result, the reciprocating slider 28 is moved in the direction indicated by the arrow E via the crank arm 29, and the swing arms 23, 25 are rotated from the front drawing position to the rear winding position, so that the ratchet teeth 22, 24 are moved. Then, the first winding gear 6 and the second winding gear 7 are rotated in the winding direction. For this reason, the 1st winding gear 6 and the 2nd winding gear 7 wind up the excess part of the wires 8 and 11, and securely fix the wheelchair 1 to the floor 2 in a state where the wires 8 and 11 are tensioned without loosening. To do.
[0021]
When the swing arms 23 and 25 are rotated to the winding position, a micro switch (not shown) is operated to stop the drive motor 33 by de-energization. At this position, since the worm gear 32 is engaged with the drive gear 30 via the pinion 31, the swing arms 23 and 25 and the drive gear 30 are prevented from rotating, and the first winding gear 6 and The second winding gear 7 is locked in a stopped state.
[0022]
In order to remove the mounting portion 20 from the wheelchair 1 and release the fixing by the wires 8 and 11, the start switch is operated again to reversely rotate the drive motor 33, and the drive gear 30 is moved to the arrow via the worm gear 32 and the pinion 31. Rotate in the opposite direction to F. Accordingly, the swing arms 23 and 25 are returned to the front drawing position via the crank arm 29, and the drive motor 33 is stopped without energization. In this state, the wires 8 and 11 are pulled out from the first winding gear 6 and the second winding gear 7 at the same time, and when the wires 8 and 11 are loosened, the gripping portion 19 is removed from the cross frames 1c and 1d of the wheelchair 1 and stored as it is. Housed in case 4.
[0023]
(Effects of the first embodiment)
As described above, when the wheelchair 1 is fixed, the mounting portion 20 is taken out from the storage case 4 and the gripping portion 19 is attached to the wheelchair 1, but the left and right mounting portions 20 are connected to the first winding gear 6 and the second winding gear 7. The wires 8 and 11 are connected. Therefore, when the wheelchair 1 is fixed, the left and right grips 19 may be attached to the left and right cross frame frames 1c and 1d. As a result, the wheelchair 1 can be quickly and quickly fixed in a short time, unlike the conventional case where the four hooks need to be hooked four times one by one when the wheelchair is fixed.
[0024]
Further, when mounting the mounting portion 20, crosspiece frame 1c of the grip portion 19 the wheelchair 1, because it becomes slide adjustable to 1d, by sliding the gripping section 19 when pulling out the wire 8 and 11, FIG. 7 (b) and 7 (b), the wheelchair 1 can be fixed to the wheelchair fixing device 3 at an arbitrary position and with a substantially uniform tension distribution. For this reason, it is not necessary to move and align the wheelchair 1 with respect to the wheelchair fixing device 3 when the wheelchair 1 is fixed. Also from this point, the wheelchair 1 can be fixed to the floor 2 quickly and quickly, and good workability can be obtained.
[0025]
FIG. 8 shows a second embodiment of the present invention. In the second embodiment, the mounting plate 21 of the mounting portion 20 of the first embodiment is omitted, and the holes 34 and 35 are provided instead of the protrusions 18a and 18b, and the hook portions 10 and 13 are formed in the holes 34 and 35. It is hooked to be detachable.
In this case, since the hook portions 10 and 13 can be easily engaged and disengaged only by the connecting portion 18, it can be used not only for the wheelchair 1 of the present invention but also for other types of wheelchairs as attachment parts for the fixing device. .
FIG. 9 shows a third embodiment of the present invention. In the third embodiment, the mounting portion 20 is formed by bending a single metal round bar into a rectangular shape, and the hook portions 10 and 13 are hooked detachably on the left and right corner portions 36 and 37 of the connecting portion 18. .
[0026]
(Modification of Embodiment)
In the above embodiment, the wires 8 and 11 are used as the rope means, but not limited to the wires 8 and 11, but may be a cable, a belt, a belt, a string, or the like. Anything is acceptable.
When the mounting portion 20 is mounted on the wheelchair 1, the wires 8 and 11 are automatically wound around the first winding gear 6 and the second winding gear 7 by using the drive motor 33. Winding may be performed by manual operation of the winding handle.
The grip portion 19 of the mounting portion 20 is attached to the cross frames 1c and 1d of the wheelchair 1. However, the grip portion 19 may be attached to the longitudinal beam portion or the stringer portion of the wheelchair 1, and in short, it may be attached to a part of the wheelchair 1. .
[0027]
The first winding gear 6 and the second winding gear 7 are arranged on the left and right in pairs, but may be arranged in pairs on the front and rear. In this case, the attachment portion 20 is attached to the cross frame before and after the wheelchair 1.
Fixed object to the vehicle is not limited to the wheelchair 1, the beginning bike bicycles as cargo, packing box containing the chemicals, machinery products, tombstones, furniture, may also be in such as furniture. Gripping portion 19 of the mounting portion 20 may be a three branched not only one tsuzuic one split bifurcated shape in the left and right, or the like may be integrated without branching, book when specific implementation Various changes can be made without departing from the scope of the invention.
[Brief description of the drawings]
FIGS. 1A and 1B are perspective views of a wheelchair fixing device installed on a floor (first embodiment).
FIG. 2 is a top view of the wheelchair fixing device.
3A is a top view of the wheelchair fixing device when the protective cover is removed, and FIG. 3B is a longitudinal sectional view taken along line YY of FIG.
FIGS. 4A and 4B are partial longitudinal sectional views of a wheelchair fixing device shown for explanation of operation. FIGS.
FIG. 5 is an exploded perspective view of a mounting portion and a mounting plate.
6 (a) is a perspective view of a wheelchair fixation device is a perspective view of a wheelchair placed (b) The wheelchair securing device.
FIGS. 7A and 7B are side views of a wheelchair shown for explanation of operation. FIGS.
FIG. 8 is an enlarged perspective view of a mounting portion on which a hook portion is hooked (second embodiment).
FIG. 9 is an enlarged perspective view of a mounting portion on which a hook portion is hooked (third embodiment).
[Explanation of symbols]
1 wheelchairs <br/> 2 bed 3 Roll holder 4 housing case 6 first winding gear (first winding mechanism)
7 Second winding gear (second winding mechanism)
8,11 wire over <br/> 9, 12 turning pulley 10, 13 hook portion 14, 17 rocking plate 18 coupling portion 19 gripping portion 20 attachment portion 21 mounting plate
21a, 21b Screws 22, 24 Ratchet teeth (locking means)
23 and 25 swing arm 28 reciprocally slider 1c, 1d crosspiece frame S1 spiral spring (spring)

Claims (5)

A pair of left and right first winding mechanisms (6) housed in a storage case (4) installed substantially flush with the floor (2) of the vehicle to which the wheelchair (1) is fixed, and the pair of left and right first A pair of left and right second winding mechanisms (7) disposed behind the winding mechanism (6);
The pair of left and right first winding mechanisms (6) and the pair of left and right second winding mechanisms (7) are respectively wound by a biasing force of a spring (S1), and the pair of left and right first winding mechanisms (6 ) And the pair of left and right second winding mechanisms (7), respectively, wires (8, 11) drawn through turning pulleys (9, 12) against the urging force of the spring (S1),
Of the wires (8, 11) connected to the pair of left and right first winding mechanisms (6) and the pair of left and right second winding mechanisms (7), the first winding mechanism (6) A pair of left and right hook parts (10, 13) from the left side and the left side of the second winding mechanism (7), and the right side of the first winding mechanism (6) and the second winding mechanism (7). A pair of hook parts (10, 13) on the right and left sides from the right side are hooked and connected to protrusions (18a, 18b) formed on the left and right sides, and above the connection part (18). A mounting portion (20) provided with a curved gripping portion (19) which is formed by branching in a direction and is detachably attached to the left and right cross frame frames (1c, 1d) provided in the wheelchair (1); equipped with a,
The bed is the time fixed wheelchair (1) with respect to (2), the grip of the left and right (19) lateral crosspieces frame (1c, 1d) the wheelchair securing device (3) shall be the wherein the mounting respectively. In the mounting part (20) housed in the housing case (4), the grip part (19 ) of the connecting part (18) hooking the hook part (10, 13) on the protrusion part (18a, 18b). ), the time of fixation of the wheelchair (1), when the instrumentation wear the right and left rail frames provided on the wheelchair (1) (1c, 1d), a slide adjustable along said rail frame (1c, 1d) The wheelchair fixing device (3) according to claim 1, characterized in that Wherein the protrusions (18a, 18b) wherein the hook portion of the wire (8, 11) to the connecting portion of the mounting portion (20) (18) hooked (10, 13), the mounting plate (21) screws ( 21a, 21b), the hooks (10, 13) are fixed, and the screws (21a, 21b) are loosened to allow the hooks (10, 13) to be removed. 13) The wheelchair fixing device (3) according to claim 1 or 2, wherein the wheelchair fixing device (3) is releasably connected.   The turning pulleys (9, 12) are provided in the storage case (4) so as to be swingable up and down by swinging plates (14, 17), and the turning pulleys (9, 12) are moved upward with use. When swinging, the wire cores (8, 11) through the turning pulleys (9, 12), the pair of left and right first winding mechanisms (6), and the pair of left and right second winding mechanisms (7 The wheelchair fixing device (3) according to any one of claims 1 to 3, characterized in that a core of the wire (8, 11) extending from the wire (8, 11) matches.   The wires (8, 11) are pulled out of the pair of left and right first winding mechanisms (6) and the pair of left and right second winding mechanisms (7), and the gripping portion (19) of the mounting portion (20) is Locking means by ratchet teeth (22, 24) for preventing the wire (8, 11) from being pulled out when mounted on the cross frame (1c, 1d) of the wheelchair (1) is provided. The wheelchair fixing device (3) according to any one of claims 1 to 4.

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