KR20200137158A - Apparatus for Fixing a Wheelchair of Vehicle - Google Patents

Abstract

According to the present invention, an automotive wheelchair fixing apparatus is provided. In order to efficiently lock and fix a wheelchair during the driving of a vehicle and enable a user to conveniently use the wheelchair by gripping and fixing a wheelchair bar in a vertical rotation direction depending on whether the wheelchair has entered the vehicle, the automotive wheelchair fixing apparatus includes: a body case having an operation space therein, and forming an inlet in front of an upper part to receive the wheelchair bar of the wheelchair; and a locking grip part installed in the operation space of the body case, and operating to enable the wheelchair bar to be locked and fixed onto the inlet. The locking grip part includes: a first locking grip part fixing the wheelchair bar by rotating in a forward and upward direction around the wheelchair bar; and second locking grip parts located on both sides of the first locking grip part and fixing the wheelchair bar by rotating in a forward and downward direction around the wheelchair bar.

Description

{Apparatus for Fixing a Wheelchair of Vehicle}

The present invention relates to a device for fixing a wheelchair for a vehicle, and more particularly, for a vehicle that can be used by a wheelchair user by gripping a wheelchair bar in an up-down rotation direction depending on whether or not a wheelchair is entered, and to efficiently lock and fix the wheelchair while driving the vehicle. It relates to a wheelchair fixing device.

In general, welfare vehicles, which are means of mobility for people with disabilities, are specialized vehicles that can carry wheelchairs or electric wheelchairs, and are basically configured to carry a wheelchair or electric wheelchair without a person on board. As the welfare of the disabled is improved, wheelchairs or electric wheelchairs are used not only for welfare vehicles, but also for public transportation such as general buses and subways, so that people with disabilities can use public transportation with safety facilities.

As a safety facility equipped in a vehicle such as a bus or a welfare vehicle, a wheelchair fixing device capable of holding the wheelchair in a locked and fixed state is installed so that the wheelchair or electric wheelchair does not move while the vehicle is running.

As a prior art disclosed in connection with the wheelchair fixing device as described above, Korean Patent Publication No. 434018 (2004.05.21.) includes a base panel having a support shaft protruding upwardly; An inner lever rotatably supported on the support shaft; An inner plate mounted on an end of the inner lever to generate a braking force by contacting a wheel when the inner lever rotates; An outer lever rotatably supported on the support shaft and mounted in a state that provides a wheel entry area while facing the inner lever; An outer plate mounted on an end of the outer lever to generate a braking force by contacting a wheel when the outer lever rotates; And a gear lever that is rotatably mounted on the support shaft and has a second gear meshed with a first gear of a motor assembly mounted on an upper surface of the inner lever, and the other end contacts the outer lever to transmit a driving force, and the inner side The inner and outer plates are connected to the inner and outer levers by rotating the inner and outer levers with the driving force transmitted through the first gear of the motor assembly mounted on the upper end of the lever and the second gear engaged therewith. There is known a fixing device for a wheelchair capable of reducing manufacturing cost and reducing malfunction by configuring to contact a wheel.

In addition, Patent Publication No. 974245 (2010.07.30.) is attached to the bottom surface of a means of transportation including buses, trains, and ships, and a wheel accommodation space for mounting device parts on the upper surface and accommodating wheels of wheelchairs. A base plate provided in the center thereof; Left and right support bars mounted on the base plate to face each other around the wheel accommodation space, and one end of which is coupled to the base plate so as to be rotatable by left and right hinges fixed on the base plate; A driving plate hinged perpendicularly to the other end of the left support bar; A rack gear hinged to be perpendicular to the other end of the right support bar and installed under the driving plate; A driving motor mounted on an upper surface of the driving plate to generate a rotational driving force so that the left and right support bars are gathered or spread apart; In a wheelchair fixing device comprising a pinion gear that is exposed to a lower portion of the driving plate and is fastened to the rack gear and rotates by receiving a driving force of the driving motor, the driving motor has a reduction gear condensed on its shaft, and the reduction gear A rotary drive type wheelchair fixing device is known which is fastened to a bevel gear, and the lower surface of the bevel gear is configured to be coupled with the pinion gear, so that it is economical and is provided in a moving means capable of generating a large driving force.

However, all of the above-described conventional techniques hold and fix the wheels of a wheelchair or electric wheelchair, so the efficiency of fixing the wheelchair or electric wheelchair decreases, and the load is intensively applied only to the wheels while directly applying pressure to the wheels, causing damage to surrounding accessories including the wheels. And there is a problem that it causes damage.

In addition, conventionally, since power is transmitted according to an external operation to automatically control locking or unlocking, there is a problem that emergency response in case of a safety accident is difficult because it is difficult to separate in an emergency situation where a problem occurs in the operation function.

KR Registered Patent Publication No. 10-0434018 (2004.05.21.) KR Patent Publication No. 10-0974245 (2010.07.30.)

The present invention is to solve the above problems, and the wheelchair bar at the rear of the wheelchair is configured to be evenly gripped by rotation in the vertical rotation direction, thereby enhancing the convenience and safety of wheelchair users in the vehicle, and improving the locking efficiency of the wheelchair. It is to provide a vehicle wheelchair fixing device that can prevent the detachment of the wheelchair while raising it, and has its purpose.

In addition, the present invention is to provide a wheelchair fixing device for a vehicle capable of resilient separation of the wheelchair in response to an emergency situation, since it is configured to be unlocked manually in a locked state of the wheelchair.

A wheelchair fixing device for a vehicle proposed by the present invention includes a main body case having a driving space inside and forming an entrance for accommodating the wheelchair bar of the wheelchair in front of the upper end; Includes; a locking grip part installed in the driving space of the main body case and driving to lock and fix the wheelchair bar on the entrance, wherein the locking grip part is rotated in a forward upward direction relative to the wheelchair bar to fix the wheelchair bar It comprises a first locking grip and a second locking grip that is positioned on both sides of the first locking grip and rotates forward and downward based on the wheelchair bar to fix the wheelchair bar.

The locking grip unit includes a grip means rotatably installed in correspondence with an entrance of the main body case, a driving means installed in the main body case and applying power for rotational driving of the grip means, and a drive space of the main body case And a grip link means that connects the grip means and the drive means to each other, and separates and transmits the power of the drive means for upward or downward rotational drive of the grip means.

The locking grip unit is configured to collectively drive the first locking grip unit and the second locking grip unit by driving the driving means.

The driving means includes a link drive shaft disposed on the main body case at a vertical interval and extending in a transverse direction to connect the grip link means, a drive motor rotating to drive the grip means, and the link drive shaft And a gear module connected to each other between the driving motor and transmitting power of the driving motor to the link driving shaft, wherein the link driving shaft includes only the grip link means corresponding to the first locking grip part among the locking grip parts. And a second link driving shaft that connects to transmit the power of the driving motor only to the grip link means corresponding to the second locking grip of the locking grip part.

The gear module includes a driving gear that rotates by receiving power from the driving motor, and a driven gear installed at one end of the link driving shaft and meshed with the driving gear so as to be rotatable, and the gear module includes It is installed at one end of the link drive shaft, and elastically supports the driven gear, but constitutes a gear separating means for separatingly supporting the driven gear engaged with the driving gear from the driving gear.

The grip link means includes a rotation connection link connected to the driving means and flowing in a rotation direction, and an elevation connection link that vertically extends so as to interconnect the rotation connection link and the grip means to move up and down in a linear direction. Configure.

In addition, a balance sensing unit configured to be installed on the inner side of the main body case by dividing it into left and right, and to recognize the left and right twist angle when the wheelchair enters.

According to the vehicle wheelchair fixing device according to the present invention, since the wheelchair bar is locked and fixed with a multi-grip structure corresponding to the rear wheelchair bar among wheelchairs, the wheelchair bar is separated in case of emergency while improving the safety in use by preventing the deformation of the wheelchair and promoting excellent fixing efficiency of the wheelchair It has an effect that can prevent the fear of becoming.

In addition, the wheelchair fixing device for a vehicle according to the present invention is configured to form a gear separation structure capable of manually unlocking the fixed state of the grip for locking the wheelchair bar, so that the locking state of the wheelchair can be flexibly adjusted by manual operation in an emergency situation. Separation has the effect of protecting the user from safety accidents.

In addition, since the vehicle wheelchair fixing device according to the present invention recognizes the right and left twist angle according to the entry of the wheelchair, there is an effect of increasing the allowable range of the twist angle of the wheelchair entry while guiding the desired entry of the wheelchair.

1 is a perspective view showing an embodiment according to the present invention.
Figure 2 is a front cross-sectional view showing an embodiment according to the present invention.
Figure 3 is a perspective view showing a locking grip in an embodiment according to the present invention.
Figure 4 is a rear perspective view showing a locking grip portion in an embodiment according to the present invention.
Figure 5 is an enlarged view showing the gear module in an embodiment according to the present invention.
Figure 6 is a side view showing the gear module in an embodiment according to the present invention.
Figure 7 is a side view showing a first locking grip portion of the locking grip portion in an embodiment according to the present invention.
Figure 8 is a side view showing a second locking grip portion of the locking grip portion in an embodiment according to the present invention.

The present invention includes a main body case having a driving space inside and forming an entrance opening for accommodating a wheelchair bar of a wheelchair in front of the upper end; Includes; a locking grip part installed in the driving space of the main body case and driving to lock and fix the wheelchair bar on the entrance, wherein the locking grip part is rotated in a forward upward direction relative to the wheelchair bar to fix the wheelchair bar A wheelchair fixing device for a vehicle including a first locking grip part and a second locking grip part that is located on both sides of the first locking grip part and rotates forward and downward based on the wheelchair bar to fix the wheelchair bar is characterized by a technical configuration.

Next, a preferred embodiment of a vehicle wheelchair fixing device according to the present invention will be described in detail with reference to the drawings.

First, an embodiment of a vehicle wheelchair fixing device according to the present invention includes a body case 100 and a locking grip part 200 as shown in FIGS. 1 and 2.

As shown in FIG. 1, the main body case 100 has an overall appearance, and the lower part is fixedly installed on the floor surface of the vehicle.

The main case 100 includes a main case 110 having a driving space sealed from the outside for driving the locking grip part 200 inside while supporting the locking grip part 200, and the main case 110 ) Is connected to both sides of the locking grip part 200 and divided into an auxiliary case 120 for accommodating additional components of the locking grip part 200.

The main body case 100 has a structure that is open in front of the upper end, and forms an entrance 111 for accommodating the wheelchair bar 7 of the wheelchair.

The body case 100 includes a balance sensing unit 150 for recognizing the entry state of the wheelchair when the wheelchair enters backward.

The balance sensing unit 150 is configured to be provided with a plurality of recognition sensors 151 by dividing each of them into left and right sides of the body case 100.

Since the balance sensing unit 150 detects signals separated from the left and right based on the locking grip unit 200, the left and right twist angles are recognized when the wheelchair enters.

In the balance sensing unit 150, the left and right twist angle of wheelchair entry is allowed only in an angle range of 1 to 15° left and right, and is locked and fixed by the driving of the locking grip unit 200, and the left and right twist angle according to the wheelchair entry is When it exceeds 15°, a voice output device (not shown in the drawing) is provided to transmit a notification signal notifying the re-entry of the wheelchair.

When the balance sensing unit 150 is configured as described above, since the left and right twist angle according to the entry of the wheelchair is recognized, it is possible to guide the desired entry of the wheelchair and increase the allowable range of the twist angle of the wheelchair entry.

The locking grip unit 200 performs a function of locking and fixing the wheelchair in the vehicle to maintain the floating state.

As shown in FIG. 2, the locking grip part 200 is installed in a driveable structure within the driving space of the main body case 100, but approaches the periphery of the main body case 100 and enters the entrance 111. The wheelchair bar 7 is driven to be locked and fixed.

The locking grip part 200 has a multi-grip structure and is divided into a first locking grip part 200a and a second locking grip part 200b.

The first locking grip portion 200a rotates in a forward upward direction based on the wheelchair bar 7 that has entered toward the entrance 111 to lock and fix the wheelchair bar 7.

The second locking grip part 200b locks and fixes the wheelchair bar 7 together with the first locking grip part 200a, but is positioned at intervals on both sides of the first locking grip part 200a. Lock another point.

The second locking grip portion 200b rotates in a direction opposite to the first locking grip portion 200a to lock and restrain the wheelchair bar 7. That is, the second locking grip portion 200b rotates forward and downward relative to the wheelchair bar 7 to fix the wheelchair bar 7.

The locking grip part 200 is a configuration having a drive structure for locking or unlocking the wheelchair bar 7, as shown in FIGS. 2 and 3, a grip means 210, a driving means 220 and a grip It constitutes the link means 230.

The grip means 210 is positioned to correspond to the entrance opening 111 of the body case 100 and is rotatably installed on the body case 100.

The grip means 210 has an approximately circular shape, but forms a support 211 with an open one side so that the wheelchair bar 7 can be introduced in the front.

The support tool 211 forms an inclined surface whose area becomes narrower inward, so that a wheelchair in the support tool 211 with smooth entry of the wheelchair bar 7 toward the support tool 211 of the grip means 210 It is formed so that the bar 7 can be contacted and supported.

The grip means 210 includes a restoring spring 213 that is rotatably coupled to the main body case 100 and resiliently restores its position when driven for unlocking from the driving means 220.

As shown in FIGS. 2 and 3, the driving means 220 is installed in the auxiliary case 120 of the main body case 100 and applies power for rotational driving of the grip means 210.

The locking grip part 200 is configured to collectively drive the first locking grip part 200a and the second locking grip part 200b by driving of the driving means 220. That is, the first locking grip portion 200a and the second locking grip portion 200b are all configured to be driven collectively by the power transmitted from the driving means 220.

The driving means 220 is a grip link means 230 of the locking grip portion 200, that is, a grip link means 230 of the first locking grip portion 200a and a grip link means of the second locking grip portion 200b ( A link drive shaft 221 that connects 230, a drive motor 223 that rotates to drive the grip means 210, and the link drive shaft 221 and the drive motor 223 It constitutes a gear module 225 to be connected.

The link driving shaft 221 is all the grip link means 230 of the locking grip part 200, that is, the grip link means 230 of the first locking grip part 200a and the grip link means of the second locking grip part 200b All 230 are formed extending in the transverse direction to connect.

The link driving shaft 221 is rotatably installed on the main body case 100 and disposed on the main body case 100 with a vertical interval. That is, the link driving shaft 221 is composed of a first link driving shaft 221a disposed at a relatively upper side, and a second link driving shaft 221b disposed at a lower side with an interval from the first link driving shaft 221a. .

The first link driving shaft 221a is connected so that the power of the driving motor 223 is transmitted only to the grip link means 230 corresponding to the first locking grip part 200a among the locking grip parts 200. That is, the first link driving shaft 221a connects all the grip link means 230 of the locking grip part 200 in the transverse direction, but the grip link means 230 corresponding to the first locking grip part 200a It is configured to be connected only to the rotational driving force.

The second link driving shaft 221b is connected so that the power of the driving motor 223 is transmitted only to the grip link means 230 corresponding to the second locking grip part 200b of the locking grip part 200. That is, the second link driving shaft 221b connects all the grip link means 230 of the locking grip part 200 in the horizontal direction, similar to the first link driving shaft 221a, but the second locking grip part 200b It is configured to be bound and connected only to the grip link means 230 corresponding to the rotational driving force to be transmitted.

The gear module 225 is connected to each other between the link driving shaft 221 and the driving motor 223, as shown in Figs. 5 and 6 to transfer the power of the driving motor 223 to the link driving shaft 221. Deliver.

The gear module 225 is installed at one end of the drive gear 226 that rotates by receiving the power of the drive motor 223 and the link drive shaft 221, and rotates by being engaged with the drive gear 226 It constitutes a driven gear 227 formed to be possible.

The driven gear 227 includes a first driven gear 227a installed at one end of the first link driving shaft 221a from the link driving shaft 221, and a first driven gear 227a installed at one end of the second link driving shaft 221b. Equipped with a two-driven gear (227b).

The first driven gear 227a directly engages with the drive gear 226 and rotates, and a reverse gear 228 is provided between the second driven gear 227b and the drive gear 226. The two-driven gear 227b is configured to rotate by indirectly engaging the driving gear 226 by the reverse gear 228.

Looking at the operation relationship of the gear module 225 as described above, when the driving gear 226 of the gear module 225 rotates counterclockwise by rotational driving of the driving motor 223, the first driven gear (227a) is rotated in a clockwise direction to rotate the first link driving shaft (221a) in a clockwise direction, and the second driven gear (227b) is in the same direction as the driving gear (226) by the reverse gear (228) In contrast to the first link driving shaft 221a, the second link driving shaft 221b rotates in a counterclockwise direction by rotating in a counterclockwise direction.

As shown in FIG. 5, the gear module 225 includes the driven gear 227 in a state of engagement with the driving gear 226, that is, the first driven gear 227a and the second driven gear 227b, respectively. It constitutes a gear separating means 229 that is separably supported from the drive gear 226.

The gear separation means 229 is installed at one end of the link driving shaft 221 and configured to elastically support the driven gear 227. That is, the gear separating means 229 couples the driven gear 227 to one end of the link driving shaft 221 in a position variable manner, and moves the driving gear 226 side in response to the driven gear 227. It is provided with a rebound spring (229a) that is elastically supported toward the body, and the main body case 100 penetrates from the outside toward the driven gear 227 and is driven by a separate pressing means (for example, a driver or a rod). A push hole 229b capable of pressing the gear 227 is formed.

When the gear separation means 229 is configured as described above, a gear separation structure capable of manually unlocking the fixed state of the grip for locking the wheelchair bar 7 is formed, so that the locked state of the wheelchair in an emergency situation It is possible to protect users from safety accidents by elastically separating them by manual operation.

The grip link means 230 transmits power to enable rotation of the grip means 210 by the power of the driving means 220.

The grip link means 230 is installed in the driving space of the main body case 100.

The grip link means 230, as shown in Figs. 7 and 8, are coupled to the driving means 220 to flow in the rotational direction, the rotation connection link 231, and the rotation connection link 231 It constitutes a lifting connection link 233 interconnecting the grip means 210.

The rotation connection link 231 is coupled to and coupled to the link driving shaft 221 among the driving means 220, and is formed to extend in a rear upward and downward inclined direction based on a connection point with the link driving shaft 221 A link bar 232 hingedly formed on the lifting connection link 233 is formed.

Among the link drive shafts 221, only the rotation connection link 231 of the grip link means 230 corresponding to the first locking grip part 200a is bound and connected to the first link drive shaft 221a to rotate and flow. The rotation connection link 231 of the grip link means 230 corresponding to the second locking grip 200b has a structure in which the power of the first link driving shaft 221a is not transmitted and is simply connected.

On the other hand, only the rotation connection link 231 of the grip link means 230 corresponding to the second locking grip portion 200b is bound and connected to the second link driving shaft 221b among the link driving shafts 221 to rotate and flow. , To the rotation connection link 231 of the grip link means 230 corresponding to the first locking grip portion 200a, the power of the second link driving shaft 221b is simply connected in a state where it is not transmitted.

The elevating connection link 233 is formed to extend vertically to connect the rotation connection link 231 and the grip means 210.

The elevating connection link 233 moves upward and downward in a linear direction according to whether the rotation connection link 231 flows in the rotational direction.

Three of the lifting connection links 233 form a pair, and it is possible to achieve stable driving performance by being connected to each of the grip means 210.

The grip link means 230 connects the grip means 210 and the driving means 220 to each other, but separates and transmits the power of the driving means 220 for upward or downward rotational drive of the grip means 210 To connect. That is, the grip link means 230 transmits power so that the grip means 210 of the first locking grip portion 200a rotates upward from the bottom by the driving of the driving means 220, as shown in FIG. As shown in FIG. 8, the grip link means 230 transmits power so that the grip means 210 of the second locking grip portion 200b rotates downward from top to bottom by driving of the driving means 220.

That is, according to the vehicle wheelchair fixing device according to the present invention configured as described above, since it is locked and fixed with a multi-grip structure corresponding to the rear wheelchair bar among wheelchairs, deformation of the wheelchair is prevented, and safety in use by promoting excellent fixing efficiency of the wheelchair It is possible to prevent the fear of the wheelchair bar being separated in case of an emergency while improving the value.

In the above, a preferred embodiment of the vehicle wheelchair fixing device according to the present invention has been described, but the present invention is not limited thereto, and various modifications may be made within the scope of the claims, the specification of the invention, and the accompanying drawings. And, this also belongs to the scope of the present invention.

100: main case 110: main case 111: entrance
120: auxiliary case 150: balance sensing unit 151: recognition sensor
200: locking grip portion 200a: first locking grip portion 200b: second locking grip portion
210: grip means 211: support tool 213: restoration spring
220: drive means 221: link drive shaft 221a: first link drive shaft
221b: second link drive shaft 223: drive motor 225: gear module
226: drive gear 227: driven gear 227a: first driven gear
227b: second driven gear 228: reverse gear 229: gear separation means
229a: rebound spring 229b: push ball 230: grip link means
231: rotating connection link 232: link bar 233: lifting connection link

Claims (7)

A main body case having a driving space inside and forming an entrance opening for accommodating the wheelchair bar of the wheelchair in front of the upper end;
Includes; a locking grip installed in the driving space of the main body case and driving to lock and fix the wheelchair bar on the entrance,
The locking grip part includes a first locking grip part for fixing the wheelchair bar by rotating in an upward direction forward with respect to the wheelchair bar, and fixing the wheelchair bar by rotating in a forward downward direction based on the wheelchair bar located on both sides of the first locking grip part A vehicle wheelchair fixing device comprising a second locking grip.
The method according to claim 1,
The locking grip unit includes a grip means rotatably installed in correspondence with an entrance of the main body case, a driving means installed in the main body case and applying power for rotational driving of the grip means, and a drive space of the main body case A wheelchair fixing device for a vehicle comprising a grip link unit that is installed inside and connects the grip unit and the driving unit to each other, and separates and transmits the power of the driving unit for driving the grip unit upward or downward.
The method according to claim 2,
In the locking grip unit, a vehicle wheelchair fixing device configured to collectively drive the first locking grip unit and the second locking grip unit by driving of the driving means.
The method according to claim 2,
The driving means includes a link drive shaft disposed on the main body case at a vertical interval and extending in a transverse direction to connect the grip link means, a drive motor rotating to drive the grip means, and the link drive shaft And a gear module connected to each other between the driving motor and transmitting power of the driving motor to the link driving shaft,
The link drive shaft includes a first link drive shaft connected to transmit power of the driving motor only to the grip link means corresponding to the first lock grip part among the lock grip parts, and the second link drive shaft corresponding to the second lock grip part among the lock grip parts. A vehicle wheelchair fixing device comprising a second link driving shaft that connects only to the grip link means so that the power of the driving motor is transmitted.
The method of claim 4,
The gear module includes a driving gear that rotates by receiving power from the driving motor, and a driven gear installed at one end of the link driving shaft and meshed with the driving gear to be rotatable,
The gear module is installed at one end of the link drive shaft, and elastically supports the driven gear, but secures a wheelchair for a vehicle comprising a gear separating means for separatingly supporting the driven gear engaged with the driving gear from the driving gear Device.
The method according to claim 2,
The grip link means includes a rotation connection link connected to the driving means and flowing in a rotation direction, and an elevation connection link that vertically extends so as to interconnect the rotation connection link and the grip means to move up and down in a linear direction. Vehicle wheelchair fixing device comprising a.
The method according to any one of claims 1 to 6,
A wheelchair fixing device for a vehicle comprising a balance sensing unit that is divided into left and right sides of the main body case and installed respectively and recognizes a right and left twist angle when the wheelchair enters.

Images