WO2009101509A1

WO2009101509A1 - Moveable chair

Info

Publication number: WO2009101509A1
Application number: PCT/IB2009/000243
Authority: WO
Inventors: Hans-Peter Enderli
Original assignee: Globetrotter Swiss Ag
Priority date: 2008-02-12
Filing date: 2009-02-12
Publication date: 2009-08-20

Abstract

The moveable chair (10) comprises a frame (12, 14) comprising two halves, wherein each respective frame half comprises a lower, substantially A-shaped section and an upper beam-type section (3) which represents the extension of one of the sides of the A-shape. The moveable chair further comprises wheels (24, 26) attached to the lower ends of the A sides of the frame. Attached to the free end of each of the beams (20) is a handle (32). A seat surface (34) extends between the frame halves. The handles (32) are designed so that they can be rotated about a perpendicular axis by 180 degrees and are always horizontal in each rotational position.

Description

SLIDE CHAIR

Background of the present invention:

The present invention relates to a pushchair or a walkable walker (also known as a walker) for supporting a pedestrian using the walker, with a frame on the underside of at least three, one plane defining wheels (mounted, and mounted on the top of a handle device is where the pedestrian can hold and / or rest on the back of the walking aid while pushing the walker in front of him, as well as with a seat device attached to the frame to which the pedestrian can sit if necessary; the wheels is associated with a braking device by means of which the at least one wheel can be braked by the pedestrian.

Sliding chairs of this type are already known. Most of these prior art push chairs have a frame made of rigidly connected tubes, so that the shape and dimensions of such a sliding chair are given and fixed. However, one has to keep in mind that a pushchair is an apparatus that should help the affected person for longer periods of time. The use of an ergonomically unadjusted pushchair is quite tiresome.

The object of the present invention is to provide a sliding chair, which eliminates the above and other disadvantages of the prior art. Summary of the present invention:

This object is achieved in the sliding chair of the aforementioned type as defined in the characterizing part of patent claim 1.

Hereinafter, embodiments of the present invention will be explained in more detail with reference to the accompanying drawings.

Brief description of the drawings:

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings, in which:

FIG. 1 shows a sliding chair according to the invention in perspective in the completely extended state;

FIG. 2 shows the inventive sliding chair in perspective with retracted handles;

FIG. 3 the inventive sliding chair in perspective with 180

Degree of rotated handles shows; FIG. FIG. 4 shows in perspective the sliding chair according to the invention in the completely folded state and with the handles taken away; FIG.

FIG. Figure 5 shows in perspective the sliding chair according to the invention with the seat board folded up;

FIG. FIG. 6 is a perspective view of a portion of the sliding chair according to the invention having the seat board; FIG.

FIG. Figure 7 shows in perspective a portion of the sliding chair according to the invention having a latching device of the seat board;

FIG. 8 shows the locking device of the seat board having enlarged section; FIG. 9 is a side view of an adjustment of the inventive Sliding chair is;

FIG. Figure 9a is a front view of a portion of the recliner assembly in the locked state;

FIG. 9b is a front view of the portion of the adjustment assembly in the released state;

FIG. Figure 10 is a side view of the handle and associated therewith

Joint is;

FIG. 11 is a side view of the handle and associated therewith

Joint is where a part has been removed to show internal parts; FIG. Figure 12 shows in perspective the mechanics of the handle;

Fig. 13 is a side view of the handle in the retracted state;

Fig. 14 is a side view of the handle in the extended state;

FIG. Fig. 15 shows in perspective a portion of the handle mechanism; and

FIG. Figure 16 shows in perspective the portion of the handle mechanism with parts removed to show internal parts.

Detailed description of the invention

The sliding chair 10 has a frame 12, which comprises two halves 14, 16. The respective frame half 14, 16 is composed of a lower and substantially A-shaped portion and an upper portion. This upper frame portion 14 is designed as a rod 20 and a spar and this spar is an extension of one of the legs 22 of the respective lower A-shaped frame half. The components of the frame are designed as hollow profiles. Wheels 24, 26 are provided which are attached to the lower ends of the A-legs 22 and 30 of the frame halves. The free end portion of the respective spar 20 is provided with a handle 32 each. Between the frame halves extends a seat 34. Between the handle 32 and the spar 20, a device 36 is arranged, which allows a movable connection between the handle and handle. This device 36, which may also be referred to as a handle fitting 40, is designed to allow adjustment of the handle in a vertical plane by practically 180 degrees, allowing it to exhibit the handles in a horizontal plane up to 40 degrees this device 36 allows a change in the distance between the handle and the spar, and that this device also makes it possible to determine the respectively set position of the handles 32. The handles 32 are detectable in a parallel arrangement or in an approximately 20-30 ° issued position. This type of adjustment of the handles is controlled by means of the knob 40. The handles 32 can thus be rotated by 180 ° and pulled out, so that there is a user-friendly grip position even when the handle is rotated. The handles 32 have palm rest 42 to improve the ergonomics.

On the housing 44 of the rotary fitting 46 is a tubular projection 50, in which a rotary rod 52 is mounted. In addition to the rotary rod 52 is fixedly connected to the brake lever 54 connected to a rack 36. This rack 36 is designed with a toothing, which has very steep tooth flank angles, which are connected by the lock 48 and firmly connected to the knob 56 to pull out. The brake lever 54 is arranged freely displaceable on the handle extension tube 50 as soon as the knob 56 is pulled out to grip, whereby an adjustment of the position of the handle to the needs of the operator can be done and in particular a user-friendly position in Schiebesesselbetrieb can be selected. The buttons 40 and 56 are pressed by a spring, such as a leaf spring 60 outwardly into the housing handle rotating fitting 36, whereby the buttons back after releasing move back to the rest positions and both locks are fixed, so that the grip position for the operation is.

At the spar 20, by using an end piece, e.g. made of plastic or cast an axle 60 which is in a vertical position. The housing of the handle fitting 36 is designed in the region of the contact point to it as a ball, whereby a rotation about this axis is made possible, without forming gaps between them. Since the rotation takes place about exactly one vertical axis, the handle is always "automatically" horizontal at each rotational position The housing of the handle fitting 36 has openings 35 on the large sides, in which buttons 40, 56 are mounted a tubular lug 50 is mounted which supports the parts of the handle 7, 60, 8, 31, etc., which are displaceably mounted on this lug 50. The shaft 60 has grooves 62 in which engage one or more brake actuations 64, which engage with the When the button is depressed, they release the connection to the axle so that the handle becomes rotatable The locking 66 of the handle 32 against rotation engages in the detent cam 70 at 30 ° position and in the push button position at 180 °.

The sliding chair is provided with brakes, which are actuated by the handles 32 by means of Bowden cables. The Bowden cables are inside the

Components 22, 20 and 30 of the frame laid. So the Bowden cables are not visible from the outside. In addition, this is a catching the

Bowden cables is avoided when driving the pushchair on other objects. This is also achieved by a special and described below articulation of the brake.

How to do that. FIG. 15-16, stored for braking force transmission of the brake lever 54 by means of a rotation axis or a bolt 72 in one

Brake lever holder 74, which is attached to the handle. When adjusting the brake lever 54 upwards, this presses on a lever-like approach a cam 76, whereby it rotates about the longitudinal axis of the brake handle. A rotary rod 52 rotates with it. This rotary rod 52 is designed as a non-circular shaft, for example as a hexagon. It transmits the said rotary motion through a handle extension tube 50, namely within the housing 36 of the handle swivel fitting, with a shoulder carrying the end of the brake actuator 80. As a result, the brake cable is pulled upon actuation of the brake lever 54 and the brake shoes are actuated accordingly. The cam 76 is mounted longitudinally displaceable on the rotary rod 52, so that the braking force transmission is completely independent of a withdrawal of the handle.

The spar 20 is telescopically disposed in the relevant A-leg of the respective frame half, wherein a device is provided, with the aid of which the position of the spar in the A-leg can be determined.

How to show the FIG. 5-8, the seat, which extends between the frame halves, a seat board 34, on which one can take place. This board 34 is designed to fold up, and under this seat board 34, a pocket 82 is arranged. The seat board 34 can be opened by means of another button 84, whereby the shopping bag 82 optionally inserted into a small frame 86 becomes accessible. The sliding chair function is similar to a wheelchair function. Especially with long distances to be overcome, which the user of the pushchair can not handle, e.g. in case of tiredness or at airports etc. etc., it is possible that the user is sitting on the pushchair and a caregiver pushes it.

The seat board 34 is designed hinged, so that a shopping bag can be attached underneath. When closing the seat board 34 shopping is covered and protected from rain or snow. It is further a protection too easy access for thieves. In the case of a rest, access is always protected. The position of the shopping bag is very user friendly mounted directly in front of the operator within its reach. The folding or folding of the pushchair is also possible when the shopping bag is filled.

The seat board 34 is provided with a frame 90 which is mounted on a hinge axis 92 of a hinge 94. The locking is done by means of snap hook 96 on the knob 84 to the seat board. This button 84 to open the seat board is connected via a leaf spring 100 of the seat board head with the seat board frame 90. The hinge 102 is designed to allow an opening angle greater than 90 °, allowing the seat board 34 to remain automatically in the open position during shopping.

In that area of the frame hoses, where the A-legs meet, a device 104 is arranged, which makes it possible to adjust the position of the A-legs of the respective frame half to each other and to lock the set position thereof. The carrying of the pushchair is made possible by a conveniently located in the handle height carrying handle 106.

The wheels 24, 26 are associated with the lower ends of the A-legs of the frame in pairs, wherein a pair of these wheels with a pair of A-legs rigid and the other pair of wheels on the other pair of A-legs is mounted. One of the pairs of these wheels 24 is mounted on the frame by means of a turntable 110. An offset of the fifth wheel axle always causes the wheels to be dragged. The wheels are arranged and held in such a way that no protruding parts can damage furniture or other objects during pushing operation. The peripheral part of the wheels is provided with tires 24,26 and the outside of the wheels is provided with plastic covers 112 on one side. After the adjustment of the Handles 32 by 180 degrees, the front axles with the front wheels to the rear axles with the rear wheels. Subsequently, the wheels rotate 180 ° in a horizontal plane. This has the consequence that the only one-sided covers 112 of the wheels are now outside and prevent the aforementioned damage such as furniture. The covers 112 are in Rollatorbetrieb thus inside and in Schiebesesselbetrieb outside. On the other hand, there is now sufficient foot space between the wheels for the person pushing the pushchair.

In the area of the wheel hub 114 there is a brake acting on the rim 116 of the wheels 24. It may be, for example, an inner shoe brake, a disc brake or outer shoe brake, which are actuated via the conventional Bowden cable 118. The Bowden cables are laid in the frame parts. The special laying of the trains could be protected in a separate font. However, it should at least be mentioned here that the Bowden cables do not hinder the function of folding the A-legs of the lower parts of the frame halves, thereby not being damaged and allowing height adjustment of the bars 20. This is achieved by the Bowden cables forming suitable loops.

The central fitting has a control knob 120, which allows the adjustment of the spar 20 and the A-leg of the frame halves. The button 120 is pressed or rotated and thereby the extension of the spar 20 from the relevant A-leg is possible.

The function of folding the folding chair is shown in FIG. 9, 9a, 9b can be seen. Directly at the handle 106 and below it is a lever 122 for folding the sliding chair. This lever 122 is mounted on the axis of the housing 124 of the central fitting 104. When lifting this lever 122, a rocker 126 for locking operated folding, which is mounted about an axis 130 of the rocker 126 on the housing 124. As a result, the attached to the rocker 126 pawl which engages in a tubular extension 132 on the front frame, released. The pipe socket 50 is fixedly connected to the spar 3 and mounted about the axis of the housing 2 of the central fitting. With a loose latch of the rocker 126 thus the tubular extension 132 can be moved about the axis of the housing 124 of the central fitting 104, whereby the folding of the sliding chair is possible.

In the folded state, see FIG. 4, the wheels of the rear axle are slightly longer than the wheels of the front axle, whereby the braking function is given on these two wheels. Optionally, the brake with

Be provided locking mechanism, then parking the sliding chair on a wall is possible without the sliding chair falls over. The use of the shopping bag 82 is still possible. Also, the operation of serving as a lid seat board 34 through the knob 84 to open the seat board is easily possible.

The function of the handles 32 is shown in FIGS. 12, 13, 14, 15, 16 can be seen. The FIG. 10,11, 13,14 show the different positions of the handles.

Claims

claims

1. Sliding chair or mobile walker (10) or walker to support a pedestrian using the walker, with a frame (12), at least three, one plane defining wheels (24, 26) are mounted on the underside, and at its top a handle device (32) is mounted, on which the pedestrian can hold and / or support on the rear side of the walking aid (10) while pushing the walking aid in front of him; and with a seat device (34) attached to the frame (12), to which the pedestrian can sit if necessary; wherein at least one of the wheels (24) is associated with a braking device (54), by means of which the at least one wheel (24) can be braked by the pedestrian, characterized in that the handle device (32) with respect to the frame (12) is adjustable between a first position, in which it faces the rear of the walker, and a second position, in which it faces the front of the walker.

2. Sliding chair (10) according to claim 1, with a two halves (14, 16) having frame (12), wherein the respective frame half a lower and substantially A-shaped portion and an upper and the extension of the legs of the A Form, comprising bar-like portion (20), with wheels (24, 26) which are attached to the lower ends of the A-legs of the frame (12), each with a handle (32) at the free end of the spar and a seat surface (34) extending between the frame halves (14, 16), characterized in that the handles (32) are designed so that they can be adjusted in a vertical plane by almost 180 degrees.

3. Sliding chair (10) according to claim 2, characterized in that a device (36) between the handle (32) and the spar (20) on which the handle is mounted, provided and designed so that this device (36) makes it possible to adjust the handle in a vertical plane by practically 180 degrees, allowing this device to exhibit the handles in a horizontal plane up to 40 degrees Device allows a change in the distance between the handle and the spar, and that this device also makes it possible to determine the set position of the handles.

4. Sliding chair (10) according to claim 3, with actuated by means of Bowden cable (54) brakes, characterized in that the components of the frame

(12) are designed as hollow profiles and that the Bowden cables are laid inside such components of the frame.

5. sliding chair (10) according to claim 4, characterized in that the spar (20) is arranged telescopically in the relevant A-leg, and that a device is provided, with the aid of which the position of the spar (20) in the A-leg lockable is.

6. sliding chair (10) according to claim 2, characterized in that the seat surface (34) comprises a seat board on which one can take place that this board between the frame halves (14, 16) is arranged folded up and that a pocket under the seat is located between the frame halves.

7. sliding chair (10) according to claim 2, characterized in that in that region of the frame half, where the A-leg meet a device is arranged, which makes it possible to adjust the position of the A-leg of this frame half to each other and the set To lock the same position.

8. Sliding chair (10) according to claim 2, characterized in that the wheels (24, 26) are associated with the lower ends of the A-legs of the frame in pairs, that a pair of rigid with the A-legs and the other pair of the A-thighs mounted on a rocker.

9. Mobile walker or sliding chair, as described in this application.