EP1694268A2

EP1694268A2 - Wheeled walking frame

Info

Publication number: EP1694268A2
Application number: EP04803847A
Authority: EP
Inventors: Frank Morath
Original assignee: DR MOMO/MORATH MOBIL EK; MOMO MORATH MOBIL E K DR
Current assignee: MOBIEL GARANT BV
Priority date: 2003-12-19
Filing date: 2004-12-14
Publication date: 2006-08-30
Also published as: US20070164528A1; WO2005061027A2; WO2005061027A3

Abstract

The invention relates to a wheeled walking frame (2) comprising a stand (4) provided with front wheels (16, 18), rear wheels (20, 22), and at least two grip parts (8, 10) for pushing the walking frame (2) in the walking direction (6). The invention is characterised in that the grip parts (8, 10) can be pivoted out of a main position (I), in which they are arranged essentially parallel to the walking direction (6), into a pivoting position (II), in which they are arranged essentially transversally to the walking direction (6).

Description

Title: Walking Cart

description

The invention relates to a walker with a frame on which the front and rear wheels and at least two handle parts are arranged for moving the walker in the walking direction.

Walkers are also known as "walkers". They form a movable scaffold on which a person can lean, so that the walking process is made easier. A walker serves as a mobility aid for the elderly or to facilitate the regeneration phase of a patient after an injury, especially in the leg or foot area.

An initially mentioned walker is known for example from EP 0 729 737 B1. The walking cart disclosed there comprises a tubular frame with two push rods, each of which has a handle part at the end spaced from the footprint of the walking cart. A person can be supported on these grip parts, so that part of the body weight can be supported by the person's upper body and the entire weight does not rest on the person's legs or feet.

The walker shown in EP 0 729 737 B1 has the disadvantage that it can only be handled satisfactorily if the walker is used as a walking aid. If the known walker is to be maneuvered into a stowed position or to be used as a transport frame, the handling, ie the maneuvering of the walker, is relatively cumbersome. Proceeding from this, the present invention has for its object to provide a walker, the handling of which is improved.

This object is achieved with a walking direction with the features of claim 1.

If the handle parts are arranged in the main position, a person can lean comfortably on the handle parts, so that the walking process is facilitated. If the handle parts are in their pivoted position, the walker can be pushed forward in the walking direction with improved grip options compared to the prior art. In contrast to the walker known from the prior art, the inventive arrangement of the handle parts also makes it possible to pull the walker behind it, so that the maneuverability of the walker is significantly improved. This means that the walker can be easily stowed in a niche or corner of a room without having to handle the walker in a cumbersome manner, for example by lifting it. In addition, the use of the walker as a transport trolley is considerably facilitated, for example when the walker is to be brought into a suitable position for loading the walker with shopping objects.

According to the invention, it is provided that the handle parts located in the swivel position are slightly spaced apart or touch one another. This has the advantage that, in the area of the handle parts facing each other, a handle is created that is centered on the walker. This means that the walker can also be comfortably moved in the direction of walking or pulled in the opposite direction to the direction of walking, especially with one-handed operation, without the walker moving sideways and a directional correction being necessary. The central grip option is particularly good when the grip parts touch each other. An advantageous embodiment of the invention provides that the handle parts in their main position and their pivoting position can be locked relative to the frame. The locking can take place in particular on the rack. This ensures that the handle parts can remain reliably in one of the layers. A corresponding locking mechanism can be formed, for example, by a latch. By locking the handle parts in the pivoted position, the advantage is achieved that in the area of the handle parts facing one another, a handle possibility is created which is centered on the walker. This means that the walker can also be comfortably moved in the walking direction or pulled in the opposite direction to the walking direction, especially with one-handed operation, without the walking carriage evading laterally and a directional correction being necessary. The central grip option is particularly good when the grip parts touch each other.

It is also advantageous if the handle parts can also be locked in intermediate positions relative to the frame. Thus, the handle parts can not only be locked essentially parallel and perpendicular to the walking direction, but also in any pivot positions. This allows the walker to be ergonomically optimally adapted to a person to be supported. For example, the handle parts can be arranged at a slight angle to the walking direction, so that the position of the handle parts is optimally oriented to a natural posture of the hands and arms of a person to be supported.

It can advantageously be provided according to the invention that the handle parts each have a locking section in the region of their free ends such that the two locking sections are at least partially opposite one another in the pivoting position and can be locked to one another by means of a locking element which engages at least partially in the two locking sections. By providing Locking sections at the free ends of the handle parts and by providing a corresponding locking element can be done in a simple, yet effective manner, a secure locking of the two handle parts in the pivot position. The two handle parts locked together in this way cannot move, or at least only to a very limited extent, relative to one another due to the locking. Overall, this results in a very stable bond between the handle parts. If the handle parts can be locked together in their pivoted position, the locking of the handle parts on the frame can be dispensed with if necessary.

The handle parts can together form a bow-shaped handle in their swivel position. This leads to particularly advantageous ergonomics in a handle area in the middle of the walker. The bow-shaped handle can form an arc or a line.

According to an advantageous embodiment of the invention, the locking sections of the two handle parts touch at least in sections in the pivoted position. Touching or clinging to one another

Locking sections can advantageously take place in a form-fitting manner. In this way, an additional stabilization of the bond between the two handle parts can be achieved by a corresponding design of the locking sections, or of contact surfaces of the locking sections.

Advantageously, the locking sections, at least in sections, have contact surfaces that run essentially at least perpendicular to the pivot axes of the two handle parts. The two swivel axes advantageously run parallel to one another. This ensures that the contact surfaces of the locking sections of the two handle parts by pivoting the handle parts in the pivot position to each other are arranged opposite one another or form a suitable form fit.

According to the invention, contact surfaces are not only understood to mean flat or curved surfaces, but also surfaces with any contour. For example, grooves, grooves, webs or the like can be provided in the contact surfaces.

A particularly preferred embodiment of the invention is characterized in that the locking element is caught on a grip part and is arranged under spring preload such that it engages through the contact surface of this grip part, the locking element being able to be at least largely completely pressed into this grip part against the spring preload. The captive arrangement of the locking element on the handle part prevents the locking element from being lost. Due to the spring preload, the locking element is held in the position in which it is locked. To release the lock, however, the locking element can be pressed against the spring preload into an unlocked position.

An advantageous locking occurs when the grip part, on which the locking element is not arranged, has a locking receptacle for at least partial engagement for the locking element in the locking position. The bolt receptacle is advantageously only slightly larger than the bolt element, whereby a largely play-free locking of the two handle parts can be made possible. The bolt receptacle can be provided, for example, as a recess or bore.

A further advantageous embodiment of the invention is characterized in that the handle part with the latch receptacle provides an actuatable release element with which the latch element counteracts the spring preload from the Locking position can be brought into an unlocking position. The trigger element is advantageously arranged in such a way that it is easily accessible for a person pushing / pulling the walker.

The trigger element can be caught and arranged under spring preload on the handle part in such a way that it is held in an accessible actuation position due to the spring preload, in the locking position by pressing the trigger element against the spring tension acting on the trigger element, the locking element from the locking position in an unlocking position can be brought.

The release element is advantageously so caught on the handle part or on the locking section that it dips at least in sections into the locking receptacle in the unlocking position, as a result of which the locking element in the locking position in the locking receptacle is displaced from the locking receptacle.

In the unlocked position, the locking element is consequently brought out of the locking receptacle by the release element to such an extent that the handle parts can be pivoted from the pivoting position into the main position. The locking element is arranged on the locking section of one handle part and the lock receptacle with the release element on the locking section of the other handle part.

It is advantageous if, in the locking position, the locking element, which engages at least in sections in the locking receptacle, and the triggering element are arranged one behind the other along a line that runs essentially parallel to the pivot axes of the handle parts and / or perpendicular to the contact surfaces of the handle parts. The locking element can be designed as a locking bolt and / or the trigger element can be designed as a trigger bolt. The locking element is then arranged displaceably mounted along its longitudinal axis in the locking section of the one handle part. The trigger element is then also arranged displaceably in the locking section of the other handle part along its longitudinal axis.

A further embodiment of the invention provides that the locking section with the bolt receptacle has an insertion bevel such that when the handle parts are pivoted into the pivoting position, the locking element is pressed into the handle part by the insertion bevel against the spring preload before it is due to the spring preload in the bolt receptacle snaps other handle part. The insertion bevel consequently ensures that pivoting of the handle parts into the pivot position is not hindered by the locking element. The locking element is pressed against its possibly provided spring preload into the locking section on which it is arranged before it can snap into the locking receptacle of the other locking section due to the spring preload.

It is advantageous if the locking section, which has no insertion bevel, has a configuration that is complementary to the insertion bevel such that the two locking sections form an at least largely closed surface in the locked state. This ensures that the two handle parts are easy to grasp in the locked state for the person pulling / pushing the walker. Appropriate maneuvering of the walker can be done in a simple manner.

According to the invention, the locking sections can be formed in one piece with the handle parts. It is also conceivable that the handle parts as such, in particular are metallic material, wherein the locking sections can be made of another, in particular a plastic material. The locking sections can then be foamed onto the metallic handle parts, for example.

The ergonomics of the walker according to the invention can be further improved if the handle parts are arranged such that they can be shifted in height relative to the frame. This means that the walker can be optimally adapted to people of different sizes. The height of the handle parts can be ensured, for example, continuously with the aid of a clamping mechanism or in stages with the aid of a locking mechanism.

For the ergonomics and good manageability of the walker, it can further be advantageous that the front wheels and rear wheels are offset from one another perpendicular to the direction of walking. This means that the rear wheels do not follow the tracks of the front wheels, but form their own tracks. On the one hand, this has the advantage that the footprint of the walker can be increased, which increases the stability of the walker. In addition, it can be avoided that a front wheel and an associated rear wheel are simultaneously threaded into a depression in a footprint of the walker. For example, after threading the front wheel into a tram rail, it can be avoided that the rear wheel also threads into the tram rail, since this is arranged offset to the front wheel.

The frame advantageously comprises two support tubes, on or in which the handle parts are mounted. In this way can be formed for the handle parts by components of the frame. The handle parts can dip into the support tubes with an insertion section and be fixed there to the latter. The carrier tubes are advantageously formed from a lightweight material, in particular from aluminum.

The front wheels can be arranged on front frame parts, wherein the front frame parts can be formed in particular by the support tubes. Thus, the carrier tubes can form receptacles for the handle parts at one end and allow the arrangement of bearings for the front wheels at the other end. The number of parts required for the assembly of the walker can thus be significantly reduced.

It is also very advantageous if the rear wheels are arranged on rear frame parts which can be pivoted from a position of use in a stowed position. In the position of use of the walking cart, as described above, it can be used to support a walking person. If the rear frame parts can be pivoted into their stowed position, the walker takes up a smaller space, so that the storage or transportation of the walker, for example in a trunk of a vehicle, is facilitated. However, pivoting the rear frame parts into a stowage position close to the front wheel also has the advantage that the walker can not only be used as such, but also as a single-axle transport device, also as a "trolley". In this case, the trolley converted into a trolley can roll off, for example, via the rear wheels, the front wheels not having any contact with the ground with the footprint of the trolley.

However, it is also possible for the rear wheels to be spaced from a footprint of the walker in the stowed position of the rear frame parts. With this configuration, the walker can be converted into a trolley be moved by contact of the front wheels with the contact patch.

It is also possible that the front wheels and the rear wheels and / or their axes of rotation can be brought into alignment with one another. This presupposes that the front wheels and rear wheels are arranged offset to one another, the front wheels and the rear wheels forming a uniaxial transport device in their aligned position. This works like a trolley, but rolls over a total of four wheels instead of the usual two provided with rotating axes and the same size front and rear wheels.

If the front wheels have a smaller or larger diameter compared to the rear wheels, it can be achieved with aligned axes of rotation of the front and rear wheels that the walker in the "trolley position" only rolls over two wheels.

The rear frame parts and the front frame parts can be connected to one another via at least one intermediate element. This can improve the stability of the stroller and / or act as a spacer between the frame parts.

At least one seat part is advantageously provided. This provides a resting place for a person to be supported by the walker. Another person, for example a small child, can also sit on the seat. The seat part can also simply be used as a storage space.

The seat part can be supported on the intermediate element in a substantially horizontal position of use. This has the advantage that the seat part is arranged close to the center of gravity, so that the walker is particularly stable against tipping, even if a relatively heavy person is on the seat part. It is also advantageous if the seat part can be moved from the position of use into a stowed position. The space required for stowing the walker can thus be reduced.

Another advantageous embodiment of the invention provides that the walker has a transport container. This is advantageously releasably attachable to the walker. Thus, the loading and unloading of the transport container does not have to be carried out on the walker itself, but can be carried out at a remote location.

Further advantageous refinements and details of the invention can be found in the following description, in which the invention is described and explained in more detail with reference to the exemplary embodiment shown in the drawing.

Show it:

Figure 1 is a side view of a first embodiment of a walker according to the invention;

Figure 2 is a side view of the trolley converted into a trolley according to Figure 1;

FIG. 3 shows a perspective view of a second embodiment of a walking carriage according to the invention;

Figure 4 is a perspective view of the handle parts of the stroller in the main position;

5 shows the handle parts according to FIG. 4 shortly before reaching the swivel position; FIG. 6 shows the handle parts according to FIG. 5 in the swivel position;

Figure 7 shows a cross section through the interlocked handle parts;

Figure 8 shows the handle part 8 in a perspective view; and

9 shows the handle part 10 in a perspective view.

In Figure 1, a walker is designated by the reference number 2. This essentially has a frame 4 which can be moved in the walking direction 6. A left grip part 8 and a right grip part 10 are arranged on the frame 4. A person can be supported on the walker 2 via the handle parts 8 and 10.

The frame 4 has front frame parts 12 and 14 which form a receptacle for the handle parts 8 and 10 at their ends facing the handle parts 8 and 10 and hold bearings for front wheels 16 and 18 at the opposite end from the handle parts 8 and 10. The rear wheels 20 and 22 of the walker 2 are mounted on rear frame parts 24 and 26. The rear frame parts 24 and 26 are pivotally mounted on an intermediate element 28 which is fixedly connected to the front frame parts 12 and 14. The intermediate element 28 is shown in FIG. 2 and covered in FIG. 1 by a seat part 30, which is shown in an essentially horizontal position of use.

The seat part 30 borders at its end pointing forward in walking direction 6 to the rear wall of a transport container 32, which is releasably secured to the frame parts 12 and 14 by means of a bracket 34.

The frame parts 12 and 14 have locking elements 36 and 38 at their upper end facing the handle parts 8 and 10. By releasing these locking elements you can the handle parts 8 and 10 are adjusted in height by 40 designated adjustment directions. The handle parts, which are shown in FIG. 1 in a main position labeled "I", in which they are arranged essentially parallel to the walking direction 6, can be brought into a swivel position "II" shown in FIGS. 2 and 3. In this swivel position, the handle parts 8 and 10 are arranged substantially perpendicular to the walking direction 6 and form an overall bow-shaped handle 42 (see also FIGS. 3 and 6). With the help of the bow-shaped handle 42, the walking carriage can be pushed in the walking direction 6 or pulled against the walking direction 6.

Brake actuating elements 44 and 46 are provided on the handle parts 8 and 10 and can be actuated both in the main position I and in the pivot position II. The walking carriage 2 can thus be held relative to a contact surface 48.

According to Figure 2, the walker 2 is converted into a trolley. For this purpose, the rear frame parts 24 and 26 have been pivoted from the position shown in FIG. 1 to the position shown in FIG. In the position shown in FIG. 2, the rear frame parts 24 and 26 are arranged essentially parallel to the front frame parts 12 and 14.

The rear wheels 20 and 22 have a smaller track width than the front wheels 16 and 18. Thus, the rear wheels 20 and 22 can be accommodated in alignment in the space formed by the front wheels 16 and 18 when the rear frame parts 26 and 28 are in the "trolley position" of the Walker carriage 2 are arranged adjacent to the front frame parts 12 and 14.

The walker 2 'according to Figure 3 is also shown in the "trolley position". The two handle parts 8 and 10 form an ergonomically favorable, bow-shaped handle 42, with which the walker 2 'can be pushed or pulled. The free ends of the two handle parts 8 and 10 touch and are locked together. According to the invention, the free ends of the two handle parts 8 and 10, contrary to the illustration in FIG. 3, can face each other and be slightly spaced apart.

The walking carriage 2 'according to FIG. 3 differs from the walking carriage 2 according to FIGS. 1 and 2 in that the track width of its rear wheels 20 and 22 is larger than the track width of the front wheels 16 and 18. Thus, the front wheels 16 and 18 with the front frame parts 12 and 14 are accommodated in the intermediate space formed by the rear wheels 20 and 22 with the rear frame parts 24 and 26 (covered by the transport container 32).

The rear wheels 20 and 22 rest on a footprint 48. The front wheels 16 and 18 are spaced apart from the footprint 48.

In Figure 4, the two handle parts 8 and 10 are shown in the main position. The handle parts 8 and 10 are advantageously locked in the main position on the frame. For unlocking the handle parts 8 and 10 provide unlocking bracket 50. The bracket-like brake actuation elements 44, 46 can also be clearly seen in FIGS. 4 to 6 and 8 and 9. By actuating the unlocking brackets 50, the handle parts 8 and 10 can be pivoted about their respective pivot axis 52 into the pivot position shown in FIG.

At the free ends of the handle parts 8 and 10, locking sections 54, 56 are provided, with which the free ends of the swivel brackets 8, 10 can be locked together. The two locking sections 54, 56 each provide a contact surface 58, 60. In the locked state, the two contact surfaces 58, 60 face one another and lie opposite one another. The contact surfaces 58, 60 are can be clearly seen in particular in FIG. The contact surfaces 58, 60 can be flat surfaces according to FIG. 7. According to the invention, however, the contact surfaces can also be curved surfaces or have a non-flat contour.

To lock the two locking sections 54, 56, the handle part 8 or the see

Locking section 54 of the grip part 8, a locking element 62 in front, which in the locking position shown in FIG. 7 extends through the two contact surfaces 58, 60 in such a way that pivoting of the two grip parts 8, 10 out of their pivoted position, as shown in FIG. 6, is no longer possible.

Advantageously, the two contact surfaces 58, 60 are designed such that they abut one another in a form-fitting manner in the pivoted position of the handles 8, 10.

The contact surfaces 58, 60 can in particular run such that they are arranged at least largely perpendicular to the pivot axes 52 of the handle parts 8, 10.

As is clear from FIG. 7, the bolt-like locking element 62 is caught in the locking section 54 in a, in particular, cylindrical receptacle 64. The receptacle 64 can be designed, for example, as a blind or through hole. The locking element 62 is pretensioned under a spring preload, which is generated by a spring element 66, in such a way that the free end of the locking element engages through the contact surface 58 of the locking section 54. The locking element 62 is T-shaped in the section shown in FIG. 7 and is held by a ring 68 let into the locking section 54.

In the locked position, the free end of the locking element 62 engages in a locking receptacle 70 Locking section 56. The bolt receptacle 70 has a slightly larger diameter than the free end of the locking element 62, so that the two locking portions 54, 56 can be locked with one another largely without play by the locking element 62.

The locking section 56 comprises an actuatable release element 72, one end 74 of which protrudes from the locking section 56 for actuation and the other end facing the free end of the locking element 62. By pressing the trigger element 72 in the actuation direction 76, the locking element 62 can be brought out of the locking position into an unlocking position against the spring preload of the spring element 66. The locking element 62 is at least largely completely pushed into the receptacle 64 of the locking section 54.

The bolt-like release element 72, as is clear from E'igur 7, is arranged under spring preload on the handle part 10 or on the locking section 56 in such a way that, due to the spring tension generated by the spring element 78, it is in the accessible position shown in FIG , Actuation position is held. For this purpose, the trigger element 72 is arranged in a receptacle 80 in the axial extension of the locking element 62, or the locking receptacle 70. The trigger element 72 provides an annular collar 82 which is acted upon by the spring element 78 on the one hand and is supported on a ring 84 embedded in the locking section 56 on the other hand. The spring element 78 is also supported in the region of the bolt receptacle 70 on a ring 86 embedded in the locking section 56.

As already mentioned, the locking element 62 and the trigger element 72 are arranged along a common axis 88. The axis 88 advantageously runs parallel to the pivot axes 52. To unlock the two handle parts 8 and 10, the trigger element 78 is consequently pressed in the direction of arrow 76 against the spring preload of the two spring elements 66 and 78. As a result, the locking element 62 moves into the receptacle 64. The unlocking position is reached when the locking element 62 is at least largely completely immersed in the receptacle 64. Then the two handle parts 8 and 10 can be pivoted about their pivot axes 52 from the locking position into the main position.

The mutually facing ends of the locking element 62 and the release element 72 can advantageously be curved in the manner of a spherical surface. This makes it easier to pivot the two handle parts 8 and 10 from the pivot position into the main position.

From Figure 7 it is also clear that the

Locking section 54 has an insertion bevel 90, which is designed such that when the handle parts 8 and 10 are pivoted into the pivoting position, the insertion bevel 90, the locking element 62 against the spring preload of the spring element 66 in the receptacle 64 of the

Locking section 54 presses. When the locking position is reached, the locking element 62 snaps into the locking receptacle 70.

The locking section 54 comprises a configuration that is complementary to the insertion slope in such a way that the two locking sections 54, 56 form a largely closed surface in the locked state. The mutually facing sides of the locking sections 54, 56 are consequently designed to be complementary to one another in such a way that, in the locking position, they bear against one another at least largely in a form-fitting manner.

Advantageously, the handle parts 8 and 10 are in the pivot position shown in Figure 6 on the one hand on the free Ends of the handle parts 8 and 10 locked together by the locking element 62 and on the other hand, an additional locking around the pivot axes 52 is provided on the frame, this additional locking can be released by the unlocking bracket 50.

FIGS. 8 and 9 show the free ends of the handles 8 and 10 with the respective locking sections 54, 56. The locking element 62, which rises above the contact surface 58, can be clearly seen in FIG.

In Figure 9, the contact surface 60 with the bolt receptacle 70 can be clearly seen. Furthermore, the insertion bevel 90 is shown, which presses the locking element 62 into the handle part 8, or the locking section 54, when the handle parts are pivoted into the pivot position.

Claims

claims

Walker carriage (2) with a frame (4) on which front wheels (16, 18) and rear wheels (20, 22) as well as at least two handle parts (8, 10) for moving the walker carriage (2) in the walking direction (6) are arranged , characterized in that the handle parts (8, 10) can be pivoted from a main position (I), in which they are arranged essentially parallel to the walking direction (6), into a pivoting position (II), in which they are essentially transverse to the walking direction (6) are slightly spaced from each other or arranged in contact with each other.

Walking trolley (2) according to claim 1, characterized in that the handle parts (8, 10) can be locked in their main position (I), their pivoting position (II) and / or in intermediate positions.

Walking trolley (2) according to at least one of the preceding claims, characterized in that the handle parts (8, 10) each have a locking section (54, 56) in the region of their free ends such that the two locking sections (54, 56) are in the pivoted position (II) at least in sections opposite to each other and can be locked together by means of a locking element (62) which engages at least in sections in the two locking sections (54, 56).

Walking trolley (2) according to claim 3, characterized in that the two locking sections (54, 56) in the swivel position (II) abut each other at least in sections.

Walking trolley (2) according to claim 3 or 4, characterized in that the locking sections (54, 56) at least Sections have contact surfaces (58, 60) which run essentially perpendicular to the pivot axes (52) of the handle parts (8, 10).

Walking trolley (2) according to claim 3, 4 or 5, characterized in that the locking element (62) is caught in a locking section (54) and is arranged under spring tension such that it projects beyond the contact surface (58) of this locking section (54), wherein the locking element (62) can be pressed into this locking section (54) at least partially, and preferably at least largely completely, counter to the spring preload.

Walking trolley (2) according to claim 6, characterized in that the locking section (56), on which the locking element (62) is not arranged, has a locking receptacle (70) for at least partial engagement for the locking element (62) in the locking position.

Walking trolley (2) according to claim 7, characterized in that the locking section (56) with the bolt receptacle (70) provides an actuatable release element (72) with which the locking element (62) can be brought against the spring preload from the locking position into an unlocking position.

Walking trolley (2) according to claim 8, characterized in that the release element (72) is caught and arranged under spring preload on the locking section (56) such that it is held in an accessible actuation position due to the spring preload, the pressure in the locking position Tripping element (72, 74), the locking element (62) can be brought from the locking position into an unlocking position.

10. Walking carriage (2) according to claim 8 or 9, characterized in that in the locking position the locking element (62) and the trigger element (72) are arranged one behind the other along a line (88) which is substantially parallel to the pivot axes (52) the handle parts and / or perpendicular to the contact surfaces (58, 60) of the locking sections (54, 56).

11. Walking carriage (2) according to one of claims 3 to 10, characterized in that the locking element (62) is designed as a locking bolt and / or the trigger element (72) as a trigger bolt.

12. Walker (2) according to one of claims 8 to 11, characterized in that the locking section (56) with the bolt receptacle (70) has an insertion bevel (90) such that when the handle parts (8, 10) are given away into the pivoted position (II) the locking element (62) is pressed by the insertion slope (90) against the spring preload into the locking section (56) before it snaps into the locking receptacle (70) due to the spring preload.

13. Walker (2) according to claim 12, characterized in that the locking section (54), which has no insertion slope, has a complementary configuration to the insertion slope (90) in such a way that the two handle parts (8, 10) one in the locked state at least largely form a closed surface.

14. Walker (2) according to at least one of the preceding claims, characterized in that front wheels (16, 18) and rear wheels (20, 22) are arranged offset to one another perpendicular to the walking direction (6).

15. Walker (2) according to at least one of the preceding claims, characterized in that the front wheels (16, 18) on the front frame parts (12, 14) are arranged and that the rear wheels (20, 22) are arranged on rear frame parts (24, 26), the rear frame parts (24, 26) from a position of use (FIG. 1) to a stowage position close to the front wheel (FIG. 2, FIG. 3 ) are pivotable, with either the rear wheels (20, 22) in the stowed position (FIG. 2) of the rear frame parts (24, 26) being spaced apart from a contact surface (48) of the walking carriage (2) or the front wheels (16 ', 18 ') in the stowed position (FIG. 3) of the rear frame parts (24', 26 ') from a contact surface (48') of the walking carriage (2 ').

16. Walking carriage (2) according to at least one of the preceding claims, characterized in that the front wheels (16, 18) and the rear wheels (20, 22) and / or their axes of rotation can be brought into alignment with one another, the diameter of the front wheels (16 , 18) and the rear wheels (20, 22) can be different.

17. Walking carriage (2) according to at least one of the preceding claims, characterized in that a seat part (30) is provided which is supported in a substantially horizontal position of use on the intermediate element (28) and can be moved from the position of use into a stowed position

18. Walker (2) according to at least one of the preceding claims, characterized in that the walker (2) has a transport container (32).