CZ742U1 - Collapsible chair for transporting invalid person on traveling staircase, too - Google Patents

Abstract

Collapsible wheelchair has a drive wheel (26), transmission (28) to the driven wheels (30), left frame (1) and right frame (2), joined together by both sides of the horizontal collapsible element (3), by both sides of the front vertical collapsible element (6) and both sides of the rear vertical collapsible element (8). When collapsed the wheelchair is secured by the front lock (7) of the front stabilising fasteners (4) and rear lock (9) of the rear stabilising fasteners (5). Fixed on the left frame (1) and right frame (2) are collapsing supporting elements (10) with end sections (13) secured in the non-collapsed position by fasteners (12), then collapsible back brackets (20) with seat back (21), whose position on the arresting elements (23) is secured by an arresting fastener (24), then brake levers (32) and manipulation member (33). By collapsing the supporting elements (10), secured in the end positions by the upper channels (34) and lower channels (35) of the holders (22), slipped on the pins (11) with end sections (13), is an independently collapsible back bracket (20) with seat back (21), by which the centre of gravity of the filled wheelchair is shifted rearward and the loading force, carried by swivel levers (15) and contact elements (14) on pins of the brake mechanism, ensures through the brake lines (18) automatic application of the brakes (31) of the chair even on the escalator stairs.<IMAGE>

Description

Folding trolley for transport of disabled person also on escalator.

Technical field

This is a field of medical technology, specifically medical aids for disabled people.

BACKGROUND OF THE INVENTION

There are a large number of similar types of folding trucks, fixed with manual and electric drive. However, large diameter bicycle wheels are generally used for manual drive, which are both unsuitable and dangerous for the transport of disabled persons on escalators. The trolley with electric drive is not usable here due to its excessive weight, which is unmanageable in the construction. A similar type of trolley as this solution is not known in the professional circles and has not appeared anywhere in practice.

The essence of the technical solution

The folding wheelchair for transporting the disabled person also on the escalator has two frames, left and right frame, which are connected together by a horizontal folding member equipped with a front stabilizing lock and a rear stabilizing lock, as well as a vertical folding member vertical with a front lock of a front stabilizing lock a vertical stabilizing member with a rear anti-roll bar, with support members with pins, with fuses, with end portions, with contact members, with pivoting shoes, with brake handles, with brake linkage pins, on the left frame and right frame, with brake lines, with guide handles, backrest carriers, with one backrest, brackets with upper notches and lower

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- 2 notches, locking members with locking catches, front wheels, drive wheels on which large gear wheels are mounted, coupled gears with small gear wheels mounted on driven wheels, brakes, brake levers and handling member. The novelty of this solution consists in the use of smaller diameter driven wheels in the trolley, which stands safely on the escalator step with sufficient reserve. In addition, support members are used to provide stability to the occupied truck on the escalator by crossing one step. Finally, after the end members have been straightened and the support members have been folded back, the back of the person to be transported is also depressed by means of a locking device. The magnitude of this backward center of gravity displacement is pre-set and permanently fixed in the desired position by locking catches according to the weight and height of the user so as to exert the necessary pressure on the pivoting feet of the contact members disposed on the end portions of the support members; this pressure is then transmitted by the contact members to the braking mechanism, and each time the pivoting feet touch the rigid base, the stability of the truck and its proper braking are automatically ensured. Also on the escalator stairs. The distance between the contact point of the support wheels and the pivoting feet of the contact members is selected so that both contacts are approximately in the middle of the escalator step depth. For folding and folding the wheelchair is used horizontal folding member, which also serves as a seat, as well as the front folding member vertical and rear folding member vertical, and the lever levers can be operated independently by a disabled person and a guide. The manipulation member is t

^: operated trolley when entering and leaving the escalator.

Overview of the drawings

The drawing is on oor. 1 shows detail A in a schematic cross-section with the arrangement of the pivoting feet

- 3, on the contact members and connecting the contact members to the pins of the brake mechanism · Fig. 2 shows the front view of the truck in two planes:

In level A on sidewalk (solid lines), in level B with straight end sections and support members folded down to the base while simultaneously folding backrests with backrest (dashed lines) and the same as in plane B but on the escalator C. FIG. 3 shows an axonometric diagram of the decomposition, respectively. folding the truck, with the horizontal folding member and a more pronounced front vertical folding member. FIG. 4 shows the same but with the more pronounced rear hinge member vertical.

Technical solution

The folding trolley or the transport of a disabled person also on the escalator is designed so that two frames, the left frame 1 and the right frame 2 in the driving direction are connected on both sides by a horizontal folding member J, also serving as a seat. After attaching one side of the folding member horizontal one side of the front folding member vertical 6 and one side of the rear folding member vertical 8 to the left frame 1 and the other side of the folding member horizontal 1 ·, the other side of the front folding member vertical 6 and the other the tilting member vertical 8 to the right frame 2. the carriage is spatially rigid in; disassembled and collapsed. The hinged horizontal member J is provided with a front anti-roll bar 6 and a rear anti-roll bar 2, to which, after unfolding the carriage, the front lock 7 and rear lock 9 are attached to the two left-hand frame 1 and right-hand frame 2. in particular, backrest carriers 20 with one backrest 21, supporting members 10),

4 on which are the pins 11 on which the upper notches 34 are slid after the holders 22 have been tilted, thereby keeping the support members 10) with the folded end portions 13 in the up position. Upon folding back the holders 22 and sliding their lower notches 35 onto the pins 11, on the contrary, the support members 10 with straightened end portions 13 secured in this position by the fuses 12 are held in the lower position. A handling member 33 is mounted between the two support members 10. When the support members 10 are lowered to the lower position, they are locked on the left frame 1 and on the right frame 2, and on the backrest carriers 20) and the support members; 10, the backrests 20 with backrest 21 are also folded down and are locked in position in the pre-set position by locking catches 24 '. By lowering the backrests 20 with backrest 21, the center of gravity of the occupied trolley is moved backwards. and thus a pre-set load of the swinging feet 15 is obtained. The boom parts 13 have contact members 14 and the swinging feet 15, which in each case engage the fixed base! by means of contact members 14 'on the pins of the brake mechanisms 17 of the brake handles 16 and brake lines 18 for the brakes 31. This brakes the truck. The brakes 31 can be controlled by the brake handles 16 and the brake levers 32. By means of the gears 28 between the large gear wheels 27 mounted on the drive wheels 26 and between the small gear wheels 29 «mounted on the driven wheels 30, the same speed can be achieved. where large bicycle wheels are used.

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PROTECTION REQUIREMENTS

Claims (1)

PROTECTION REQUIREMENTS Folding trolley for transporting a disabled person also on an escalator, characterized by having a left frame (1) and a right frame (2), which are joined together by a horizontal folding member (3) provided with a front stabilizing lock (4) and a rear the stabilizer lock (5), the front hinged member vertical (6), provided with the front lock (7), the front stabilizer fuse (4), and the rear hinge member vertical (8), provided with the rear lock (9), the rear stabilizer fuse (5); on the left frame (1) and the right frame (2) are supported support members (10) with pins (11), with fuses (12), with end parts (13), with contact members (14), with pivoting feet / 15 ^ with brake handles (16), brake linkage pins (17), brake lines (18), guide handles (19), backrest carriers (20) with one backrest (21), brackets (22) with upper notches (34) and lower notches (35), locking members (23) with locking catches (24), front wheels (25), drive wheels (26) on which are mounted large gear wheels (27), coupled gears (28) with small gear wheels (29) mounted on driven wheels (30), brakes (31) »brake levers (32) and a manipulation member (33).