TWI474812B - A wheelchair that can be moved laterally - Google Patents

Description

Wheelchair that can be moved laterally

The present invention relates to a wheelchair that can be moved laterally, and more particularly to a wheelchair construction that can directly move laterally without requiring any radius of gyration in a small space.

At present, the general elderly, patients, people with reduced mobility or those with obstacles in the foot need to use wheelchairs as a means of transportation, and the common structure of the chair, such as the Republic of China on March 21, 101. A new type of M424929 "retractable wheelchair" patent is disclosed, which discloses a body, a first support rod, a second support rod, a backrest frame, and a connecting unit. The backrest frame has a first branch pipe and a second branch pipe. The first branch pipe is swingably disposed on the first support bar, and the second branch pipe is swingably disposed on the second support bar. The first branch pipe and the second branch pipe are connected and connected by the connecting unit, so that the wheelchair can be folded, the volume of the wheelchair is reduced, the carrying is convenient and space is not occupied, and the collection and transportation cost is low.

There is also a new type of M401440 "Wheelchairs for Retractable Pedal (2)" patent announced on April 11, 100, the Republic of China, which discloses that there is a pivoting unit on each of the lower crossbars of the second frame. a pivoting rod for pivoting a pedal group, and an armrest is disposed horizontally above the seat frame, the first end of the rotating rod is provided with a first blocking portion, and a second blocking portion is disposed on a spindle of the pivoting unit. The pivoting rod end is pivoted on the mandrel, whereby the pedal group can be centered on the pivoting unit, and between an extended position away from the seat cushion and a folded position close to the seat cushion Rotate and use the first The alignment relationship of the second stop portion achieves the limit action of the forward and counterclockwise rotation directions, and the rotating rod is located on the inner side surface of the main seat rod of the seat frame to urge the two pedal spacings at the front end of the two rotation rods Reduce to avoid the phenomenon of emptying.

However, although the above-mentioned patents have the effect of facilitating the collection and implementation, the facilities for the barrier-free space are relatively few, especially in the home, it is difficult to meet the demand for barrier-free space, due to the radius of gyration of the wheelchair during cornering. Larger, it requires a considerable amount of space for rotation, so wheelchairs are prone to collision or obstruction when turning, so it is not ideal for use.

Therefore, in view of the current wheelchair construction, the above-mentioned shortcomings are used in the present invention. Therefore, the present invention provides a wheelchair that can be moved laterally, and is provided with a frame body, which is provided with a pad portion, and two sides of the frame body are provided with one An armrest, a backrest portion is disposed on a rear side of the frame body, a handle is disposed on two sides of the backrest portion, and a front wheel is respectively disposed on two sides of the bottom of the frame body, and a rotating shaft is respectively disposed on two sides of the bottom of the frame body; The main wheel frame is respectively connected to a rotating shaft of the frame body, and the main wheel frame is provided with a plurality of fixed portions radially arranged, the fixing portion is fixedly fixed with a fixing cover, and the fixing cover is combined with the fixing portion to form a fixing a shaft hole, and the fixing portion or the fixing cover is provided with a recessed hole corresponding to the inner wall of the shaft hole, wherein the recessed hole is provided with a spring and a latching block, and the outer side edge of the main wheel frame is A plurality of rolling wheels are disposed, and the plurality of rolling wheels are pivotally disposed between the two corresponding fixing portions. The two sides of the rolling wheel are respectively provided with a pivot shaft, and the two pivoting shafts are respectively disposed on the main wheel frame and are two phases. Corresponding to the shaft hole, and the pivot is received by the clamping block Of engaging.

The above front wheel train can rotate 360 degrees.

A second screw hole is disposed on each of the two sides of the fixing portion, and the second screw hole is disposed in the first screw hole and the second screw hole. There is a bolt.

The pivot is provided with a groove which is elastically latched by the latching block.

The latching block is formed in a bead shape, and the recess is formed in a matching circular shape.

The invention has the following advantages:

1. The present invention utilizes a plurality of scroll wheels on the main wheel frame of the main wheel frame, so that the direction of the adjustment is not required to be repeated several times before and after, and the horizontal direction can be directly moved to facilitate the user's operation.

2. The invention is particularly suitable for use in a small space or a place with a small radius of gyration, so that it can be easily moved in a narrow place.

3. The structure of the invention is quite simple. If any one of the rolling wheels is faulty, it can be easily disassembled and repaired, and only the faulty rolling wheel can be replaced, and no whole group is replaced, so the manufacturing and The cost of repair is low.

(1) ‧‧‧ frame

(11) ‧‧‧Cushion Department

(12) ‧‧‧Handrails

(13) ‧ ‧ backrest

(14)‧‧‧Hands

(15) ‧‧‧ Front wheel

(16) ‧‧‧ shaft

(2) ‧‧‧ main wheel frame

(21) ‧‧‧Fixed Department

(22)‧‧‧First screw hole

(23) ‧ ‧ fixed cover

(24)‧‧‧Second screw hole

(25)‧‧‧ bolts

(26)‧‧‧Axis hole

(27)‧‧‧ recessed holes

(271) ‧ ‧ spring

(272) ‧‧‧卡掣块

(28)‧‧‧Hand circle

(3) ‧‧‧ rolling wheel

(31) ‧‧‧ pivot

(32) ‧‧‧ Groove

The first figure is a perspective view of the present invention.

The second figure is an exploded perspective view of the main wheel frame of the present invention.

The third figure is a combined sectional view of the main wheel frame fixing portion of the present invention.

The fourth figure is a schematic diagram of the forward movement of the present invention.

The fifth figure is a schematic diagram of the lateral movement of the present invention.

The sixth figure is a schematic view of the rotation of the rolling wheel of the present invention.

First, referring to the first and second figures, the present invention includes a frame body (1), a main wheel frame (2) and a rolling wheel (3), wherein: the frame body (1) is provided with a frame a seat cushion portion (11), an armrest (12) is disposed on two sides of the frame body (1), and a backrest portion (13) is disposed on a rear side of the frame body (1), and the top edge of the backrest portion (13) is provided A handle (14) and a front side of the bottom edge of the frame body (1) are respectively provided with a 360-degree rotating front wheel (15), and the bottom side of the bottom edge of the frame body (1) is respectively provided with a rotating shaft (16).

The main wheel carrier (2) is provided with two sets and is respectively coupled to the rotating shaft (16) of the frame body (1), and the main wheel frame (2) is provided with a plurality of fixing portions arranged in a radial arrangement. (21) A first screw hole (22) is respectively disposed on two sides of each fixing portion (21), and a fixing cover (23) is integrally provided with respect to the fixing portion (21), the fixing cover (23) A second screw hole (24) is disposed at a position corresponding to the first screw hole (22), and a bolt (25) is screwed into the first screw hole (22) and the second screw hole (24). Therefore, the fixing cover (23) is relatively fixed to the fixing portion (21), and the fixing cover (23) is combined with the fixing portion (21) to form a shaft hole (26), and the fixing portion is further formed. (21) a recessed hole (27) is disposed on the inner wall of the shaft hole (26), and a spring (271) and a ball-shaped card are sequentially disposed in the recessed hole (27). The block (272), the recessed hole (27), the spring (271) and the latching block (272) may also be disposed on the inner wall of the fixing cover (23) corresponding to the shaft hole (26), and A retaining ring (28) is disposed on the outer side edge of the main wheel carrier (2).

a plurality of rolling wheels (3) pivotally disposed between each of the two corresponding fixing portions (21), The two sides of the rolling wheel (3) are respectively provided with a pivot shaft (31), and the two pivot shafts (31) are respectively disposed in the corresponding shaft holes (26) of the main wheel carrier (2), and the The pivot (31) is provided with a circular recess (32) which is just received by the elastic latch of the latching block (272) (as shown in the third figure).

When it is necessary to push the wheelchair forward, as shown in the first and fourth figures, the handle (14) of the frame (1) can be pushed by others, or the occupant pushes the main wheel frame (2) by itself. The hand support ring (28) can rotate the main wheel carrier (2) on the rotating shaft (16) of the frame body (1), and the main wheel frame (2) can drive each fixing portion (21) The upper rolling wheel (3) is sequentially advanced along the axial direction of the rolling wheel (3) pivot (31), since the groove (32) of the rolling wheel (3) is subjected to the fixing portion (21) The spring (271) in the recessed hole (27) and the elastic latch of the latching block (272) (as shown in the third figure), such that the rolling wheel (3) rotates when the main wheel carrier (2) rotates forward It does not arbitrarily rotate and causes the main wheel carrier (2) to shift in the forward direction. Therefore, the main wheel carrier (2) can be used to move the frame body (1) forward.

When encountering a space with a small space and unable to make a turn with a large radius of gyration, and need to control the lateral movement of the wheelchair, as shown in the first and fifth figures, it is only necessary to laterally push the main wheel carrier (2), so that The groove (32) of the rolling wheel (3) on each fixing portion (21) of the main wheel frame (2) can overcome the spring (271) and the card in the recess (27) of the fixing portion (21). The elastic clamping force of the block (272) is as shown in the sixth figure, and the pivot (31) is formed by combining the fixing cover (23) of the fixing portion (21) with the fixing portion (21). The shaft hole (26) pivots, and the front wheel (15) of the frame body (1) is also rotated by 90 degrees, and can be guided by the rotation direction of the rolling wheel (3). The body (1) moves all the way laterally, and does not have to use an excessive radius of gyration to make a turn, so that it can be adapted to advance or laterally move in a narrow space.

However, the above description is only one of the embodiments of the present invention. When the scope of the patent application of the present invention is not limited thereto, the simple equivalent changes and substitutions made by the scope of the patent application and the contents of the specification of the present invention are It is still within the scope of the protection covered by the scope of the invention.

(1) ‧‧‧ frame

(11) ‧‧‧Cushion Department

(12) ‧‧‧Handrails

(13) ‧ ‧ backrest

(14)‧‧‧Hands

(15) ‧‧‧ Front wheel

(16) ‧‧‧ shaft

(2) ‧‧‧ main wheel frame

(21) ‧‧‧Fixed Department

(23) ‧ ‧ fixed cover

(25)‧‧‧ bolts

(28)‧‧‧Hand circle

(3) ‧‧‧ rolling wheel

Claims (4)

A wheelchair that can be moved laterally includes: a frame body having a pad portion, an armrest on one side of the frame body, a backrest portion on the rear side of the frame body, and a handle on the two sides of the backrest portion Further, a front wheel is respectively disposed on two sides of the bottom of the frame body, and a rotating shaft is respectively disposed on two sides of the bottom of the frame body; and two main wheel frames are respectively coupled to the rotating shaft of the frame body, and the main wheel frame is provided with a plurality of a fixed portion of the fixing portion, the fixing portion is fixedly coupled with the fixing portion to form a shaft hole, and the fixing portion or the fixing cover is corresponding to the inner wall of the shaft hole The utility model is provided with a recessed hole, a spring and a latching block are arranged in the recessed hole, and the outer side edge of the main wheel carrier is provided with a hand-holding ring; the plurality of rolling wheels are pivotally disposed on the corresponding fixing portion. Each of the two sides of the scroll wheel is respectively provided with a pivot shaft, and the two pivot shafts are respectively disposed in the corresponding shaft holes of the two main wheel brackets, and the pivot shaft is provided with a groove, and the groove is provided with a groove Subject to the elastic snap of the card block. A wheelchair that is laterally movable as described in claim 1 wherein the front wheel train is capable of 360 degree rotation. The wheelchair can be moved laterally as described in claim 1, wherein the two sides of the fixing portion are respectively provided with a first screw hole, and the fixing cover is provided with a second screw corresponding to the first screw hole position. a hole, the first screw hole and the second screw hole are screwed with a bolt. The wheelchair can be moved laterally as described in claim 1, wherein the latching block is formed in a bead shape, and the recess is formed in a matching circular shape.