TWM497019U - Wheelchair capable of folding stepping plates - Google Patents

Description

Wheelchair with folding pedal (4)

This creation is about a wheelchair, especially a wheelchair (4) that is easier and faster to fold off the pedal.

With the advent of the ageing society, people have to pay more attention to the care of the elderly and the sick at home. In the case of short-distance transport means, "wheelchairs", it is common. One of the transport chairs, so various types of wheelchairs have been developed on the market to meet the needs of different users.

Among them, based on the convenience of carrying and space storage considerations, it is accepted by the most common consumers of foldable wheelchairs. The foldable lightweight wheelchair is roughly between two symmetrical skeletons. An X-shaped folding frame, and each main frame has a main wheel at the bottom of the rear, and a small wheeled driven wheel is arranged at the bottom of the front of the frame, and a seat cushion is horizontally disposed between the two frames. And the back of the skeleton corresponding to the main wheel is erected with a backrest bar, the top of the backrest bar is provided with a push handle, and a backrest pad can be placed between the two backrest bars, and, on each skeleton Further, a handrail is arranged, and a front leg of each frame is integrally bent and extended, and a footrest is pivotally connected to the end of the footrest. The foot pedal can be rotated and swinged into a horizontal and vertical state. When the old man or the patient is seated on the seat cushion, the back can be rested on the back cushion, the hands are placed on the handrail, and the feet are placed on the pedals, so that the caregiver can hold Push the handle to move the wheelchair.

When the wheelchair has to be transported or stored for a long distance, the folding frame of the wheelchair can be used. The folding structure reduces the spacing between the two skeletons to reduce the volume of the entire wheelchair and facilitate transportation.

Although the conventional foldable wheelchair has the function of horizontally retracting the skeleton, there are still some problems, that is, although the person can fold the foot pedal and stand up to form a foot space for easy riding. The seat of the seat is seated or left, but the raised foot pedal and the foot stick that extends to the front of the skeleton still form a barrier protruding from the front of the frame, which will not be advantageous for riding or leaving the seat. The moving line and, more importantly, the protruding footrests and pedals cannot be folded into the skeleton, which may cause too much space to be placed in the trunk of the car. .

Therefore, at present, this type of wheelchair can only remove the footrest and the foot pedal from the skeleton, so as not to cause obstacles in packaging and handling, but the footrest and the pedal are removed after the removal. Putting it, not only troublesome, but also the possibility of loss, it will also cause troubles in collection and transportation. On the other hand, for the elderly or patients, it is bound to be able to stand on the skeleton by themselves, and still have to rely entirely on others. On behalf of the work.

The wheelchair (4) of the created folding pedal folds the pedal group above the seat cushion, and is covered by the seat cushion, the back pad and the armrest, so that the folded wheelchair volume is reduced to a smaller size and appearance. It is more solid and easy to move and transport.

In the wheelchair (four) of the presently-created folding pedal, the first clamping member and the second holding member respectively maintain the pedal group in the use and storage state, so that the pedal group is not shaken by the external force in the folded state.

The wheelchair (4) of the presently-created folding pedal has a nut that is limited to the hexagonal hole of the pivoting member due to the locking assembly for pivoting the pedal group to the pivoting member, so the main body of the pedal group When the rod is pivotally moved, the locked screw and nut are not loosened by the pivoting movement, so that Make sure that the main body rod is firmly positioned on the pivoting piece, so that there is no accident of looseness.

Therefore, the wheelchair (four) of the foldable pedal proposed by the present invention comprises a second chair frame, a folding unit, a pad, two armrests, a back pad, two main wheels, two linked wheels, and two pedal sets. Two pivot positioning units. The chair frame has a main chair bar, a seat back bar located above the rear side of the main chair bar, a front vertical bar located in front of the main seat bar, and a lower cross bar located below the front vertical bar. The folding unit is pivotally connected to the chair frame. The folding unit has a plurality of struts that are pivotally connected to each other, so that the chair frame can be stably deployed and folded. The seat cushion is coupled between the aforementioned seat frames to provide a seat on which the seat is seated. The armrests are respectively arranged above the aforementioned chair frame and have a handrail frame. The back pad is mounted on the seat back bar of the aforementioned chair frame. The aforementioned main wheels are respectively pivoted to the outside of the aforementioned seat frame. The interlocking wheels are respectively pivotally connected under the front end of the crossbar below the chair frame, and are located in front of the main wheel, and can be rotated by an angle of three hundred and sixty degrees under the control of an external force. The pedal groups are respectively connected to the front side of the front vertical rod of the chair frame, and the pedal groups respectively comprise a main body rod, a pedal disposed at the front end of the main body rod, and a pivot portion disposed at the rear end of the main body rod . The pivot positioning unit is respectively disposed at a front side of the vertical rod before the front frame and a front end of the arm frame, and each of the pivot positioning units has a pivoting member, a first clamping member, a second clamping member and a plurality of a locking assembly, the pivoting member is locked at a middle portion of the front vertical rod, the first clamping member is locked and fixed at a bottom portion of the front vertical rod, and the second clamping member is fixed to the front vertical portion a front end of the rod, the main body rod of the pedal group is fixed to the pivoting member by a locking assembly, and the main body rod is clamped by the first clamping member, so that the pedal group is in use, When the pedal set is rotated and placed above the seat cushion, the body rod is restrained by the second clamp member, and the pedal group is placed in a folded state.

According to the above-mentioned wheelchair (4) for folding the pedal, the locking assembly of the pivot positioning unit comprises a screw and a nut, and the pivoting member and the first clamping member utilize a plurality of screws and The nuts are respectively locked to the front vertical rod.

a wheelchair (four) according to the above-mentioned foldable pedal, wherein the pivot positioning unit The locking assembly includes a screw and a nut, the pivoting member has a base wall, a first side wall, a second side wall, a through hole extending through the first side wall and the second side wall, and a base wall An open slot defined by the first sidewall and the second sidewall, and the first sidewall is provided with a circular slot communicating with the through hole, and the second sidewall is provided with a hexagonal hole connected to the through hole The nut is disposed in the hexagonal hole groove of the second side wall, and the screw penetrates into the circular hole groove, the through hole, penetrates into the hexagonal hole groove, and is interlocked with the nut.

The wheelchair (four) according to the above-mentioned foldable pedal, wherein the first clamping member of the pivot positioning unit comprises a base portion locked to the front vertical rod by the locking assembly, and two base portions from the base portion a claw-shaped side wall extending outwardly from the side, and a circular arc groove between the two claw-shaped side walls, the main body rod of the pedal group being squeezed into the circular arc groove and being sandwiched by the two claw-shaped side walls.

The wheelchair (four) according to the above-mentioned foldable pedal, wherein the second clamping member is a plug fixed to the front end of the armrest frame and has a circular groove for enclosing the main body shaft.

The wheelchair (four) according to the above-mentioned foldable pedal, wherein the armrest further comprises a guard band, wherein the guard band is detachably mounted by using at least one male adhesive tape and at least one female adhesive tape On the armrest.

According to the above-mentioned wheelchair (four) which can be folded off, the middle section of the back of the chair frame is further provided with a movable joint and an operating handle.

The wheelchair (four) according to the above-mentioned foldable pedal, further comprising a second-hand brake unit, respectively having a handle and a brake portion, the hand brake unit being mounted on the lower crossbar of the main frame, the lower cross The lever has a main lever section and a sub-rod section above the main pole section, the handcart unit is mounted on the sub-rod section, and the brake section is adjacent to each of the main wheels.

10‧‧‧ Chair frame

11‧‧‧ main chair pole

12‧‧‧Backrest

13‧‧‧ front pole

14‧‧‧lower crossbar

141‧‧‧ main section

142‧‧‧Subsection

15‧‧‧Active joints

16‧‧‧Operation handle

20‧‧‧Folding unit

21‧‧‧ pole

30‧‧‧Cushion

40‧‧‧Handrails

41‧‧‧Handrail

42‧‧‧ Guard belt

43‧‧‧Male adhesive tape

44‧‧‧Female Velcro

50‧‧‧Back pad

60‧‧‧ main round

61‧‧‧ linkage wheel

70‧‧‧Hand brake unit

71‧‧‧handle

72‧‧‧ brakes

80‧‧‧ pedal group

81‧‧‧ body rod

82‧‧‧ pedal

83‧‧‧ pivoting department

90‧‧‧ pivot positioning unit

91‧‧‧ pivoting parts

911‧‧‧ base wall

912‧‧‧ first side wall

913‧‧‧second side wall

914‧‧‧Perforation

915‧‧‧ open slot

916‧‧‧Circular slot

917‧‧‧ hexagonal slot

92‧‧‧First clamping part

921‧‧‧Basic Department

922‧‧‧ claw-shaped sidewall

923‧‧‧Arc groove

93‧‧‧Second grip

931‧‧‧round groove

94‧‧‧Lock assembly

941‧‧‧ screw

942‧‧‧ Nuts

Fig. 1 is an external perspective view of a preferred embodiment of a wheelchair (four) for creating a foldable pedal.

Figure 2 is a partial cross-sectional view of the main body rod assembled to the pivoting member by means of a locking assembly.

Figure 3 is a combined side view of the body rod of the pedal set, the pivoting member and the front vertical rod.

Figure 4 is a partial front elevational view of the wheelchair (4) of the foldable pedal, showing the pedal set in a collapsed state.

Fig. 5 is another perspective view of the wheelchair (four) of the foldable pedal, showing that the pedal set is in a folded state.

Referring to FIG. 1 , a preferred embodiment of the wheelchair (four) capable of folding the pedal includes a second chair frame 10 , a folding unit 20 , a pad 30 , two armrests 40 , and a back pad 50 . The second main wheel 60, the second interlocking wheel 61, the second-hand brake unit 70, the two-step group 80 and a pivot positioning unit 90.

The chair frame 10 has a main chair bar 11, a seat back bar 12 located above the rear side, a front vertical bar 13 on the front side of the main chair bar 11, and a lower crossbar below the front vertical bar 13. 14. Each of the chair frame 10 further has a movable joint 15 located at a middle portion of the seat back bar 12 and an operating handle 16 . By pivoting the movable joint 15 and operating the operating handle 16 , the seat back bar 12 can be The upper section is bent toward the rear side of the armrest 40 to facilitate folding.

The folding unit 20 is pivotally connected to the chair frame 10, and the folding unit 20 has a plurality of struts 21 which are pivotally connected to each other. The struts 21 of the folding unit 20 can be deployed and closed to form a stable position. The front frame 10 is opened and folded.

The seat cushion 30 is made of a soft material and is coupled between the aforementioned seat frames 10 to provide a seat on which the occupant seat is placed.

The armrests 40 are respectively disposed above the seat frame 10. Each of the armrests 40 has a handrail frame 41 and a retaining band 42. The retaining band 42 is provided with a male adhesive strip 43 at both ends, and a female adhesive strip 44 is disposed on the inner side. The retaining band 42 is fixed to the female fastening tape 44 by a male adhesive tape 43 at both ends, and is detachably mounted on the handrail frame 41.

The back pad 50 is made of a soft material and is attached to the seat back bar 12 on the rear side of the aforementioned seat frame 10.

The main wheel 60 is pivoted to the outside of the seat frame 10, respectively.

The interlocking wheels 61 are respectively pivotally connected under the front end of the crossbar 14 below the seat frame 10, and are located in front of the main wheel 60, and can be rotated by an angle of three hundred and sixty degrees under the control of an external force.

The handlebar unit 70 has a handle 71 and a brake portion 72. The handlebar unit 70 is mounted on the lower crossbar 14 of the main frame 10. The lower rail 14 has a main pole segment 141 and a The auxiliary lever section 142 above the main pole section 141 is mounted on the auxiliary lever section 142, and the braking section 72 is brought close to each of the main wheels 60. When the braking action needs to be performed, the handle 71 is operated to make the braking portion 72 contact and abut against the main wheel 60, so that the wheelchair can be maintained at a fixed position to avoid slipping; otherwise, the handle 71 is operated again to When the brake portion 72 leaves the main wheel 60, the wheelchair can be released from the brake state for normal use.

The pedal group 80 is respectively disposed on the front side of the front vertical rod 13 of the chair frame 10, and the pedal groups 80 respectively include a main body rod 81, a pedal 82 disposed at the front end of the main body rod 81, and a pedal 86 disposed thereon. A pivoting portion 83 at the rear end of the main body rod 81.

As shown in FIG. 2, the pivot positioning unit 90 is respectively disposed at the front side of the vertical rod 13 and the front end of the armrest frame 41 before the front frame 10, and each of the pivot positioning units 90 has a pivoting member 91 and a The first clamping member 92, a second clamping member 93 and a plurality of locking assemblies 94. Each of the locking assemblies 94 includes a screw 941 and a nut 942.

Referring to Figures 2 and 3, the pivoting member 91 has a base wall 911, a first sidewall 912, a second sidewall 913, a through hole 914 extending through the first sidewall 912 and the second sidewall 913, and an opening defined by the base wall 911, the first sidewall 912, and the second sidewall 913 The first side wall 912 is provided with a circular hole 916 communicating with the through hole 914. The second side wall 913 is provided with a hexagonal hole 917 connected to the through hole 914. When assembled, the nut 942 is disposed in the hexagonal hole 917 of the second side wall 913, and the screw 941 penetrates into the circular hole 916, the through hole 914, and penetrates into the hexagonal hole 917, and The nut 942 is interlocked with the nut 942 to lock the pivoting member 91 at the middle portion of the front vertical rod 13 by the locking assembly 94. When the pivoting portion 83 of the pedal group 80 is pivotally mounted on the pivoting member 91 by the locking assembly 94, the main body rod 81 is pivotally connected to the pivoting member 91, and the nut 942 has been The position is limited to the inside of the hexagonal hole slot 917. Therefore, when the pedal group 80 is rotated, the pivoting main body rod 81 does not interlock with the screw 941 and the nut 942, that is, by the The hexagonal hole slot 917 allows the nut 942 to be securely positioned to prevent the pivoting activity from affecting the connection relationship between the pedal set 80 and the pivoting member 91. Therefore, the nut 942 is not loosened by the external force, thereby ensuring the The body rod 81 is firmly positioned on the pivoting member 91 without causing an accident of loosening.

As shown in FIGS. 4 and 5, the first clamping member 92 includes a base portion 921, two claw-shaped side walls 922 extending outward from both sides of the base portion 921, and a claw-shaped side wall 922. An arc groove 923 between. The first clamping member 92 is locked and fixed to the bottom portion of the front vertical rod 13 by the cooperation of the screw 941 and the nut 942. In the state of use, the main body rod 81 of the pedal group 80 is squeezed into the circular arc groove 923, and is clamped by the two claw-shaped side walls 922, so that the pedal group 80 can be maintained positioned on the front vertical rod 13 Front to carry the user's foot.

The second clamping member 93 is a plug fixed to the front end of the front vertical rod 13 and has a circular groove 931 for clamping the shaft of the body rod 81 of the pedal group 80.

Therefore, after the folding frame 10 of the wheelchair has been folded by the folding unit 20 and the movable joint 15, respectively, as shown in FIGS. 4 and 5, the folding manner of each of the pedal sets 80 is directly to the main body rod. After the 81 is pulled away from the circular arc groove 923 of the first clamping member 92, the pedal group 80 is directed to Upward pivoting, at this time, the pedal group 80 is rotated and received above the seat cushion 30, and is positioned by the circular groove 931 of the second clamping member 93 against the rod of the body rod 81. That is, the pedal group 80 is in a folded state, and the wheelchair volume after the folding is reduced to a smaller size, and does not occupy a space. Further, since the pedal group 80 is housed above the seat cushion 30, the hidden type is The folding method makes the wheelchair after the folding more solid, and it will be more convenient and convenient to carry.

When the pedal set 80 is returned to the use state again, only the pedal set 80 is rotated outwardly from above the seat cushion 30, and the body rod 81 of the pedal set 80 is again squeezed into the circle of the first clamp 92. The arc groove 923 is sandwiched by the two claw-shaped side walls 922, so that the pedal 82 can be returned to the use position for the user's foot to step on.

As mentioned above, the advantages and functions that can be achieved by the creation of the wheelchair (four wheelchairs) can be listed as follows:

1. Since the pedal group 80 is folded over the seat cushion 30, so that the pedal group is covered (clamped) by the seat cushion 30, the back cushion 50 and each of the armrests 40, and the folded wheelchair is allowed. The appearance is more solid and the volume is reduced to a smaller size. In addition to being convenient for storage, it is more conducive to moving and transporting.

2. The present invention uses the first clamping member 92 and the second clamping member 93 to position the pedal group 80 at the use position and the folding position, respectively, so that the pedal group 80 is not subjected to external force and then swayed in the folded state. When the vehicle is installed in the vehicle, it can avoid the dislocation of the positioned pedal group 80 and cause the damage.

3. Since the lock assembly 94 for pivoting the pedal set 80 to the pivoting member 91 has its nut 942 confined within the hexagonal slot 917 of the pivoting member 91, the body of the pedal set 80 When the lever 81 is pivotally moved, the locked screw 941 and the nut 942 are not loosened by the pivoting movement, so that the main body rod 81 can be securely positioned on the pivoting member 91 without being generated. Loose accident.

Fourth, also because the pedal set 80 can be directly and conveniently from the chair frame 10 more conveniently and quickly The pivoting and unfolding is performed so that the main body rod 81 and the pedal 82 of the pedal group 80 no longer protrude from the front of the seat frame 10, and therefore, the occupant is not hindered when leaving the seat or riding the seat, and The entire pedal set 80 does not have to be detached from the seat frame 10, so there is no loss or carry.

The above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited by this, that is, the simple equivalent changes and modifications made by the applicant according to the scope of the patent application and the new description of the creation are all It should remain within the scope of this creation patent.

10‧‧‧ Chair frame

11‧‧‧ main chair pole

12‧‧‧Backrest

13‧‧‧ front pole

14‧‧‧lower crossbar

141‧‧‧ main section

142‧‧‧Subsection

15‧‧‧Active joints

16‧‧‧Operation handle

20‧‧‧Folding unit

21‧‧‧ pole

30‧‧‧Cushion

40‧‧‧Handrails

41‧‧‧Handrail

42‧‧‧ Guard belt

43‧‧‧Male adhesive tape

44‧‧‧Female Velcro

50‧‧‧Back pad

60‧‧‧ main round

61‧‧‧ linkage wheel

70‧‧‧Hand brake unit

71‧‧‧handle

72‧‧‧ brakes

80‧‧‧ pedal group

81‧‧‧ body rod

82‧‧‧ pedal

83‧‧‧ pivoting department

90‧‧‧ pivot positioning unit

91‧‧‧ pivoting parts

911‧‧‧ base wall

912‧‧‧ first side wall

913‧‧‧second side wall

92‧‧‧First clamping part

93‧‧‧Second grip

931‧‧‧round groove

94‧‧‧Lock assembly

Claims (8)

A wheelchair capable of folding a pedal, comprising: two chair frames, respectively having a main chair bar, a seat back bar located above the rear side of the main chair bar, a front vertical bar located in front of the main chair bar, and a a lower crossbar located below the front vertical pole; a folding unit pivotally connected to the chair frame, the folding unit has a plurality of pivoting poles, so that the chair frame can be stably positioned and received a pad, connected between the aforementioned chair frames to provide a seat on which the seat is placed; two armrests respectively connected above the chair frame and having a handrail; a back pad, The second main wheel is respectively disposed on the outer side of the chair frame; the second connecting wheel is respectively pivotally connected under the front end of the cross bar below the chair frame, and is located at the front wheel The front side is controlled by an external force and can be rotated at an angle of three hundred and sixty degrees; the two pedal groups are respectively connected to the front side of the front vertical rod of the aforementioned chair frame, and the pedal groups respectively comprise a main body rod and a set a pedal at the front end of the main body rod, and a pivot disposed at the rear end of the main body rod And two pivoting positioning units respectively disposed on the front side of the vertical rod and the front end of the armrest frame before the chair frame, each of the pivot positioning units having a pivoting member, a first clamping member and a second clamping member And a plurality of locking assemblies, the pivoting member is locked at a middle portion of the front vertical rod, the first clamping member is locked and fixed at a bottom portion of the front vertical rod, and the second clamping member is fixed at the a front end of the armrest frame, the main body rod of the pedal group is fixed to the pivoting member by a locking assembly, and the main body rod is clamped by the first clamping member, so that the pedal group is in use, When the pedal set is rotated and placed above the seat cushion to restrain the main body rod by the second clamping member, the pedal group is in a folded state. The wheelchair for folding the pedal according to claim 1, wherein the locking assembly of the pivot positioning unit comprises a screw and a nut, and the pivoting member and the first clamping member are utilized. A plurality of screws and nuts are respectively locked to the front vertical rod. The wheelchair for folding the pedal according to the first aspect of the invention, wherein the locking assembly of the pivot positioning unit comprises a screw and a nut, the pivoting member has a base wall and a first side wall. a second side wall, a through hole penetrating the first side wall and the second side wall, and an open groove defined by the base wall, the first side wall and the second side wall, and the first side wall is provided with a perforation a communicating circular hole, the second side wall is provided with a hexagonal hole slot connected to the through hole, the nut is disposed in the hexagonal hole groove of the second side wall, and the screw penetrates the circular hole The groove and the perforation are inserted into the hexagonal hole and locked with the nut. The wheelchair for folding the pedal according to claim 1, wherein the first clamping member of the pivot positioning unit comprises a base portion locked by the locking assembly on the front vertical rod, and two a claw-shaped side wall extending outwardly from both sides of the base portion, and a circular arc groove between the two claw-shaped side walls, wherein the main body rod of the pedal group is squeezed into the circular arc groove and is sandwiched by the two claw-shaped side walls solid. The wheelchair for folding the pedal according to claim 1, wherein the second clamping member is a plug fixed to the front end of the armrest frame and has a circle for enclosing the main body shaft Groove. The wheelchair for folding the pedal according to claim 1, wherein the armrest further comprises a guard band, wherein the guard band is detachable with at least one male adhesive tape and at least one female adhesive tape. Installed on the armrest. The wheelchair for folding the pedal according to claim 1, wherein the middle portion of the backrest of each of the seat frames is further provided with a movable joint and an operating handle. The wheelchair for folding the pedal according to the first aspect of the patent application, further comprising a second-hand brake unit, respectively having a handle and a brake portion, the handle unit being mounted on the lower crossbar of the main frame The lower crossbar has a main pole section and a secondary pole section above the main pole section. The handcart unit is mounted on the auxiliary pole section and the braking section is adjacent to each of the main wheels.