CN208770312U

CN208770312U - Walk helper

Info

Publication number: CN208770312U
Application number: CN201720854975.XU
Authority: CN
Inventors: 佩奇·马斯; 尼加·沙阿; 瓦苏达拉·阿格拉沃尔; 轩·童; 一轩·童
Original assignee: Medline Industries LP
Current assignee: Medline Industries LP
Priority date: 2017-05-19
Filing date: 2017-07-11
Publication date: 2019-04-23
Anticipated expiration: 2027-07-11
Also published as: CN108938339A; CN108938339B

Abstract

A kind of walk helper is provided, can be moved between compact, foldable structure and deployed configuration.Walk helper includes a pair of of side frame, and each side frame has foreleg and back leg.Leg is connected at their top by upper support member.Cross member extends between the foreleg of each of a pair of of side frame.Cross member has the hinge being placed between foreleg.Cross member can be rotated with around hinge folding and relative to foreleg, so that walk helper is moved between structure unfolding and folding, this allows frame to be placed in direction that is adjacent and being generally aligned when folding.Hinge has locking mechanism to lock hinge in deployed configuration.

Description

Walk helper

Technical field

The disclosure belongs to field of medical device, more particularly to mobility-aid apparatus.There has been described a kind of walk helper, tools Body, describe the folding walk helper being configured in deployed configuration between more compact contraction structure.

Background technique

Walk helper is the mobility-aid apparatus for needing the people supported to use in standing or walking.Conventional walk helper has one To side frame, each side frame has a pair of of foot, upper support member and lower support member.This can surround upper and lower support portion to frame Part pivots so that walk helper moves between deployed configuration and compact contraction structure.In contraction structure, frame can be each other Offset, and therefore may not as good as transport and store it is desired it is compact.Disclosed in U.S. Patent number 3,516,425 Walk helper has a pair of folding support member, and permission frame is adjacent, alignment is placed, as shown in Fig. 3 of the patent.So And the pivotable member of foldable support member is not locked out, this, which may cause, unintentionally folds, and causes to cause user seriously Injury.

Desirably, walk helper should be able to prevent from unintentionally folding.The walk helper so constructed is disclosed now.

Detailed description of the invention

Fig. 1 and 1A is the front perspective view of prior art walk helper and the prior art walk helper in folding position respectively Perspective view；

Fig. 2 is the side view of the walk helper of the utility model in foldable structure, and shows adjacent, alignment Frame；

Fig. 3 is the rear perspective view of the walk helper of Fig. 2, but in partially expanded configuration, is shown by hinged transverse part The frame that part separates, and the leg assembly in storage position；

Fig. 4 is the front perspective view of the walk helper of Fig. 2, but in complete package assembly, is shown by hinged transverse part The frame that part separates, and in the leg assembly for using position；

Fig. 5 is the perspective view of the hinge component of the hinged cross member of the walk helper of Fig. 2；

Fig. 6 A-6D collectively illustrates the component after the dismantling of the hinge component of Fig. 5.

Fig. 7 is the plan view from above of the hinge component of Fig. 5；

Fig. 8 is the sectional view along the hinge component of the line VIII-VIII of Fig. 7 Fig. 5 intercepted；

Fig. 9 A-9E is the schematic side elevation of walk helper shown in Fig. 2, is moved to compact, folding from deployed configuration Structure；

Figure 10 is the side view of the walk helper of Fig. 2, shows the placement that leg assembly enters storage position；And

Figure 11 is the perspective view of walk helper shown in Fig. 4, but depicts a leg group of walk helper in an exploded view Part.

Utility model content

A kind of walk helper is provided, can be moved between compact, foldable structure and deployed configuration, deployed configuration is walk helper For typically used as position, and foldable structure is commonly used in transport or storage.Walk helper is in expanded position and folding position Between a series of middle positions it is mobile.For walk helper, usual walk helper includes a pair of of side frame, before each side frame has Leg and back leg.Leg is connected at their top by upper support member, and optionally in the case where their lower part or middle part pass through Support member connection.Cross member extends between the foreleg of each of a pair of of side frame.Cross member is under upper support member Side is rotatably attached relative to foreleg.Cross member has the hinge being placed between foreleg.Cross member can be rolled over around hinge Folded and rotate relative to foreleg, so that walk helper is moved between structure unfolding and folding, this can advantageously allow for frame to exist Direction that is compact, adjacent and being generally aligned is placed in when folding.Hinge have locking mechanism in deployed configuration by hinge Locking.Locking mechanism can drive via unlocking mechanism, and unlocking mechanism can be placed with respect to one in side frame, such as a side One foreleg of frame, to allow user easily to unlock while limitation unintentionally folds.

There is provided locking mechanism also to prevent cross member relative to the rotation to each of frame.When combination and hinge When associated locking mechanism, three stage unlocking processes are optionally provided to limit folding unintentionally for walk helper.More specifically, The first stage of unlocking process includes relative to first unlock cross member in side frame so that cross member is relative to side frame In first rotation.The second stage of unlocking process includes driving unlocking mechanism associated with the hinge of cross member to permit Perhaps cross member around hinge folds.Optionally, the first side frame can drive associated with hinge relative to the rotation of cross member Unlocking mechanism.The phase III of unlocking process is similar to first stage, but second be related in side frame.That is, Relative to second unlock cross member in side frame so that cross member is relative to second rotation in side frame.Walk helper can With setting as shown there are four leg assembly, or with a pair of of leg assembly and the one wheel pairs that can be removed from walk helper or Wheel assembly (not shown).Leg assembly is telescopic structure, allows the height for adjusting walk helper and is shrunk to compact Form is to store.

In an aspect, cross member includes the first assembly being connected by a hinge and the second component.First assembly exists One in a pair of of side frame extends between hinge, and another in a pair of of side frame of the second component extends between hinge. First assembly is installed relative to first sleeve, and one foreleg that first sleeve surrounds in a pair of of side frame is rotatably arranged, and And second component installed relative to second sleeve, another the foreleg that second sleeve surrounds in a pair of of side frame is rotatably set It sets.

Preferably, although not necessarily, single cross member is only provided.In some respects, cross member includes a pair Oblique bracket, wherein first in bracket extends to first assembly from first sleeve, and second in bracket is from second Sleeve extends to the second component.Bracket makes cross member with the appearance of substantially K shape.

In some respects, actuator can be pivotally mounted on relative to one in a pair of of side frame.Actuator can be handle, The handle is pivoted to unlock cross member, makes it relative to a rotation in a pair of of side frame.More specifically, actuator has lock Positioning is set, and prevents one in a pair of of side frame to rotate relative to cross member herein, and also have unlocked position, a pair of herein One in side frame can rotate relative to cross member.

In some respects, locking mechanism can also include locking pin associated with hinge.Pin has latched position, prevents Around hinge rotation and unlocked position, allow to rotate around hinge.Pin can be optionally inclined towards latched position by spring It sets.

In some respects, pivot shell be arranged at least partly above locking pin and via flexible cable relative to Locking pin is operably connected.Pivoting shell has a pivotal axis relative to hinge, and can first position and the second position it Between pivot, locking pin is in the locked position at first position, and second place locking pin is in the unlocked position, with pivot shell from First position moves to the second position, draws flexible cable to unlocked position, to allow transverse direction locking pin from latched position Component surrounds hinge folding.

In some respects, locking mechanism includes pivoting the actuator line extended between one in shell and a pair of of side frame Cable, cable have the length rotated from expansion towards foldable structure relative to cross member so that in a pair of of side frame, should Rotation causes pivot shell to be moved to the second position from first position, and locking pin is then made to be moved to solution lock-bit from latched position It sets.

Walk helper described herein is included the following steps: from the method that deployed configuration is moved to foldable structure by making One in a pair of of side frame rotates another in simultaneously separate a pair of of side frame relative to cross member to unlock hinge, surrounds hinge Fold cross member, and make in a pair of of side frame another rotated relative to cross member and towards one in a pair of of side frame It is a.Each of side frame can have the locking mechanism of their own, for selectively limiting them relative to cross member Rotation.

For example, during transportation or at point of sale, it can be with folding, cramped construction offer walk helper described herein. In this configuration, a pair of of side frame is in the arrangement of substantially adjacent alignment, rather than deviate.Cross member is rolled over around hinge It is folded, so that hinge is located between a pair of of side frame and between its foreleg and back leg.This compact structure is also applied for walk helper Storage.

Specific embodiment

Referring now to the drawings, the walk helper 6 of the prior art shown in Fig. 1 and 1A is shown as in normal operating in Fig. 1 Structure and in figure 1A be in relatively more compact storage configuration.With reference to Fig. 2-4, the walk helper 10 of the utility model can also be It is moved between compact, foldable structure as shown in Figure 2 and normal operating deployed configuration as shown in Figure 4.For walk helper Speech, and with specific reference to Fig. 3, usual walk helper 10 includes a pair of of side frame 12,14 and upper support member 24,26 and lower support Component 28,30, wherein each side frame 12,14 has foreleg 16,20 and back leg 18,22.Upper support member 24,26 can include making The comfortable handle 25 of user, such as the covering of rubber or polymer material.

Side frame is connected by cross member structure 32.As indicated, cross member structure 32 includes the central part in walk helper The first and second truss structures 33,35 being connected to each other at hinge 34 at point, function will be described in greater detail below, with Generally form K shape structure.Truss structure includes primary clustering 36,38 and oblique bracket 40,42.The hinge 34 of setting allow by Walk helper 10, which is placed in, to be unfolded and folded between structure, advantageouslys allow for frame 12,14 to be placed in compacted location when folding, such as Shown in Fig. 2.Compared with the walk helper 6 of the prior art shown in FIG. 1, this can produce more compact foldable structure, transverse direction in Fig. 1 Component 8 is rigid and frame 2,4 deviates opposite to each other when folding.

With specific reference to Fig. 4, truss structure 33,35 is typically connected to a pair of of tubular sleeve 44,46, the foreleg of side frame 12,14 16, it 20 is placed in tubular sleeve.Side frame 12,14 is rotatable relative to tubular sleeve 44,46.During normal use, side frame It is rotatably locked relative to tubular sleeve to prevent unintentionally to rotate.Each sleeve be equipped with locking mechanism, including paddle handle 47, It 48 and is operably connected to each paddle handle and cooperates the spring-loaded pipe of the socket (not shown) in foreleg 16,20 Shape sleeve locking pin (not shown).In order to fold walk helper, paddle handle is depressed, and causes each handle 47,48 around pivot Axis pivots.The movement by tubular sleeve locking pin from the opening of foreleg 16,20 retract so that side frame relative to tubular sleeve 44, 46 rotations, to be rotated relative to cross member structure 32.

Similarly, hinge 34 generally remains in lock state to limit the unintentionally contraction of walk helper 10.As Fig. 5-8 institute Show, hinge 34 includes first axle side 60 and second hinge side 62.Each side 60,62 has relative to each other around public pivotal axis A pair of of plate of rotation.More specifically, first axle side 60 includes the plate with centre bore 64, and second hinge side 62 further includes Plate with centre bore 66, as best seen in Fig. 6 A.Joint pin (not shown) may extend through hole 64,66 to limit hinge The pivotal axis of chain 34.First axle side 60 is connected to the first primary clustering 36, and second hinge side 62 is connected to second main group Part 38.

Each plate of first and second hinge sides 60,62 further includes the offset apertures 70,68 separated with pivotal axis.It is shown specific The locking mechanism of embodiment includes locking pin 82 (Fig. 6 C), is slidably received in the offset apertures 70,68 of hinge 34. When locking pin 82 is in retracted position, it is detached from the offset apertures 68 of second hinge side 62, so that the first and second hinge sides 60, 62 are pivoted relative to each other around pivotal axis.However, extending through first axle side 60 when locking pin 82 is in extended position Offset apertures 70 and partially across the offset apertures of second hinge side 62 68, to prevent the first and second hinge sides 60,62 Between surround pivot relative rotation.

As shown in figure 8, locking pin 82 extends towards location bias by spring 94.More specifically, as shown in Fig. 6 C, Locking pin 82 has the widened head 86 that relatively narrow 84 one end of axis is arranged in.Also as shown in Figure 6 C, widened head 86 and compared with The intersection of narrow axis 84 is formed with step 88.Spring 94 is arranged around relatively narrow axis 84, and one end of spring 94 is against step 88.Bullet The other end of spring 94 is biased against the surface of first axle side 60, by locking pin 82 towards extended position.

Movement of the locking pin 82 from extended position to retracted position is the controlled operation of leaning device, wherein in extended position Locate the first and second hinge sides 60,62 to be prevented from around the rotation of pivotal axis, the rotation at retracted position around pivotal axis is It is allowed to.Leaning device includes pivoting shell 76, has inner chamber 80 forward and the curved pivot surface towards after 78, as shown in Figure 8.The plate of first axle side 60 includes the pivot shell installation part 72 with socket 74, has and pivots shell 76 Curved pivot surface 78 cooperate surface.Hole 90 He of the pivotal pin cable 81 (Fig. 8) in the relatively narrow axis 84 of locking pin 82 It pivots and extends between the inner surface of shell installation part 72.Upon assembly, locking pin 82 is partially disposed at the inner chamber for pivoting shell 76 In 80.When pivot shell 76 is tilted backwards around curved pivot surface 78, pivotal pin cable 81 cuts with scissors locking pin 82 from second It is pulled out in the offset apertures 68 of chain side 62, to allow the first and second hinge sides 60,62 around the rotation of pivotal axis.Instead of pivoting Cordon cable, cross bar can extend through the hole 90 of locking pin 82 and extend in a pair of holes for pivoting shell installation part 72, and Specifically, the side wall for pivoting shell installation part surrounds to form its inner chamber 80.Locking pin 82 can be rotated around cross bar, and/or be pivoted Shell 76 is rotated around cross bar.

It is tilted backwards to make to pivot shell 76, as shown in Figure 3 and Figure 4, actuator cables 58 are pivoting shell 76 and side frame 12 Or one of 14 foreleg between extend.One end of actuator cables 58 extends through the angled hole 92 (Fig. 7) for pivoting shell 76, It has the amplifier element (not shown) for the free end for being attached at actuator cables 58, to prevent it from angled hole 92 It is drawn out.The other end of actuator cables 58 is fixed to the foreleg of a side frame, such as by extend through its opening or by anchor It is fixed.The length of selection actuator cables 58 is biased to enough degree backward will pivot shell 76 to overcome the biasing of spring 94 Power, so that pivotal pin 82 is pulled out of second hinge side 62 offset apertures 68, thus the first and second hinge sides 60 of permission, 62 rotate around pivotal axis.This is realized and partly winding actuator cables 58 around the foreleg of the first side frame, It is by the first side frame in associated tubular sleeve (being 6 in shown specific embodiment) (in shown specific implementation It is the rotation of foreleg 14) in mode to realize.Actuator cables 58 can be attached to appointing in the first and second frames 12,14 What one, as long as it is configured to pivot the inclination of shell 76.

In order to which walk helper is folded into compact, contraction structure from deployed configuration, as schematically illustrated in fig. 9, a system is performed The pivoting action of column.Since deployed configuration, after using the unlock of associated paddle handle, (the figure of actuator cables 58 9A-9E is not shown) side frame 14 that is connected rotates outward around its foreleg, far from the second side frame 12.With continued reference to previous description Locking mechanism, the movement of the side frame 14 pivots shell 76 so that actuator cable 58 biases backward, and then by pivotal pin 82 It pulls out that the first and second hinge sides 60,62 is allowed to rotate around pivotal axis out of second hinge side 62 offset apertures 68.This Cross member structure 32 is allowed to fold around hinge 34.After unlocking associated paddle handle, walk helper be folded and The position for entering the alignment of the first and second side frames 12,14, as shown in Fig. 9 E and Fig. 2.The step can be in reverse order It repeats, walk helper is moved to non-collapsible, deployed configuration from contraction structure.Expansion does not need to release various locking machines Structure because they have been released at this point, but can cooperate again automatically in deployed configuration.

In order to further provide for more compact structure, the leg 16/18,20/22 of each frame 12,14 optionally includes list The leg assembly part of only lower part.With reference to Figure 10 and 11, leg assembly 52 includes telescopic inside and outside leg assembly Part 54,56 can be folded into compact form and is fixed to the other assemblies of walk helper via clip 58.Inner leg portion assembly portion Dividing 54 includes the narrow upper end 60 for being sized for insert into the respective leg portions parts (being in this instance 18) of corresponding side frame (12).It is internal Part 54 is provided with spring loaded pin 62, the mounting hole 64 being inserted into Leg portion 16.Outer leg portion components 56 include Series installation hole 66 (is shown with the second spring load pin 68 being equipped in inner leg portion components 54 in Figure 10 Second pin 68), allow to adjust the height of walk helper.Outer leg portion components are provided with the elastic foot 70 for foreleg part Or optionally take turns (not shown).It can be used conventional spring loaded pin or other suitable structures, such as bolt and wing Nut (not shown).Other leg assemblies can be configured substantially similarly.

By above-mentioned, it can be seen that provide a kind of walk helper resisted and be not intended to fold and can be folded into cramped construction.

Unless otherwise indicated herein, or clearly with contradicted by context, otherwise singular references such as " one (a) ", " one (an) " use is intended to cover odd number and plural number.Term " includes ", " having ", "comprising" and " containing " will be considered as open Term.Any description and specific embodiment of certain specific embodiments as " preferably " specific embodiment, feature or Range is that preferred other explanations are not to be considered as being restrictive as preferred or suggestion.The utility model should be regarded as including mesh Before be considered not preferred specific embodiment and specific embodiment as described herein.All methods described here can To execute in any suitable order, unless otherwise indicated herein or it is apparently contradicted in the context.Use provided herein is any It is intended to illustrate the utility model with all examples or exemplary language (for example, " such as "), not to the scope of the utility model It is construed as limiting.Any statement herein in relation to the essence or benefit of the utility model or preferred embodiment does not constitute limit System.The utility model includes all modifications and equivalent for the theme recorded herein that applicable law allows.In addition, unless herein Be otherwise noted or with the clear contradiction of context, otherwise the utility model cover said elements with all possible variant appoint What is combined.Herein to the description of any document or patent, even if being identified as " existing ", it is not construed as composition and recognizes these citation texts It offers or patent constitutes the prior art for fighting the utility model.Unstated language should not be considered as to limitation utility model range. Any statement or suggestion of the component part of utility model claimed are constituted herein in relation to certain features, do not constitute limit System, unless reflecting in the following claims.The mark of the patent No. on any product and patent relevant to any service Number mark should not be construed as representing all specific embodiments described herein be incorporated to the product or service.

Claims

1. a kind of walk helper, which is characterized in that the walk helper includes:

A pair of of side frame, each side frame have foreleg and back leg, and leg is connected and at it at their top by upper support member Middle part connected by lower support member；And

Cross member extends between the foreleg of each of a pair of of side frame, and the cross member, which has, to be arranged in foreleg Between hinge, and the lower section of upper support member and in the top of lower support member it is rotatably attached relative to the foreleg Connect, the cross member be folding around the hinge and relative to the foreleg be it is rotatable so that the walk help Device is moved between structure unfolding and folding, and thus in foldable structure, compared with deployed configuration, side frame is close together simultaneously And the hinge, between the foreleg and the back leg, the hinge has the activatable lock of user for unlocking hinge Mechanism is determined, to allow the cross member around the hinge folding.

2. walk helper according to claim 1, wherein the cross member includes passing through described hinged first group Part and the second component, the first assembly extend between the hinge in one in a pair of of side frame, and described second group Part extends between the hinge in another in a pair of of side frame, and wherein the first assembly is attached relative to first sleeve It connects, one foreleg that first sleeve surrounds in a pair of of side frame is rotatably arranged, and the second component is relative to second sleeve Attachment, another the foreleg that second sleeve surrounds in a pair of of side frame are rotatably arranged.

3. walk helper according to claim 2, wherein the cross member includes a pair of brackets, first in bracket from The first sleeve extends to the first assembly, and second in bracket extends to described second group from the second sleeve Part.

4. walk helper according to any one of claim 1-3, wherein each of foreleg and back leg have extensible Leg, has foot at one end and the other end is slidably engaged with the leg, every in foldable structure compared with deployed configuration The foot of a extensible leg is closer to the lower support member.

5. walk helper according to any one of claim 1-3, wherein being provided with handle in each upper support member.

6. walk helper according to claim 4, wherein being provided with handle in each upper support member.

7. walk helper according to any one of claim 1-3, wherein the locking mechanism includes relative to a pair of of side frame In a pivotable actuator.

8. walk helper according to claim 4, wherein the locking mechanism includes can relative to one in a pair of of side frame The actuator of pivot.

9. walk helper according to claim 5, wherein the locking mechanism includes can relative to one in a pair of of side frame The actuator of pivot.

10. walk helper according to claim 6, wherein the locking mechanism includes can relative to one in a pair of of side frame The actuator of pivot.

11. walk helper according to claim 7, wherein locking pin is associated with the hinge, and has and prevent from surrounding The latched position of the hinge rotation, and allow the unlocked position around hinge rotation.

12. walk helper according to claim 11 is arranged to be at least partially disposed on the locking wherein pivoting shell It is operably connected above pin and via flexible cable relative to the locking pin, the pivot shell has relative to the hinge The pivotal axis of chain, and can pivot between the first position and the second position, wherein locking pin is in locking bit at first position Set, second place locking pin is in the unlocked position, the pivot shell from first position be moved to the second position cause it is described soft Property cable pull the locking pin from latched position to unlocked position, to allow the cross member around hinge folding It is folded.

13. walk helper according to claim 12, wherein actuator cables are in the pivot shell and one in a pair of of side frame Extend between a, cable has so that one in a pair of of side frame revolves relative to the cross member from expansion towards foldable structure The length turned, causes the pivot shell to be moved to the second position from first position, and moves the locking pin from latched position Move unlocked position.

14. walk helper according to claim 13, wherein the locking pin is biased by spring towards its latched position.