Crutch leaving a hand free

Abstract

The invention relates to a crutch that leaves a user's hand free when in use, the crutch comprising a shaft (2) and at least one frame (4) secured to an upper portion of the shaft, the frame comprising at least one first support (10) intended to accommodate the user's elbow, the first support comprising at least one base (11) and at least two longitudinal flanks (14a, 14b) extending from the base on either side thereof, the first support further comprising a pad (15) extending from the base, behind the flanks, the first support being fitted with at least one strap (16).

Description

[0001] Crutch leaving the hand free

[0002] The present invention relates to a crutch that leaves the associated hand of a user free even when the user is walking.

[0003] BACKGROUND OF THE INVENTION

[0004] A pair of crutches allows a user to move around while relieving their lower limbs or even without putting weight on one of their lower limbs.

[0005] Traditionally, a crutch, or walking stick, consists of a shaft extended by an arm support, the crutch being equipped with a handle to be gripped by the user's hand.

[0006] Traditional crutches thus require the user's hand to be used. In addition to the hand or wrist pain that this can cause, the user is limited in their movements since they cannot move while holding an object.

[0007] Crutches were then devised that could free a user's hand. For example, crutches worn at knee level are known, such as the one illustrated in US document 9,408,443.

[0008] Unfortunately, this type of crutch is not suitable for all pathologies, particularly those affecting the hips.

[0009] SUBJECT OF THE INVENTION

[0010] The invention aims, in particular, to provide a crutch that leaves the user's hand free and is usable by a larger number of people. SUMMARY OF THE INVENTION

[0011] For this purpose, the invention provides a crutch leaving one hand of the user free in use, the crutch comprising a shaft and at least one frame attached to an upper part of the shaft, the frame comprising at least one first support intended to receive the user's elbow, the first support comprising at least one base and at least two longitudinal sides extending from the base on either side thereof, the first support further comprising a wedge extending from the base, behind the sides, the first support being equipped with at least one attachment.

[0012] In this way, the user's elbow rests in the first support and is held in place by the attachment. The user then puts pressure on their forearm to move and / or stabilize themselves, freeing their hand. The user can thus walk with the aid of their crutch while carrying an object.

[0013] It will be understood that if the user wishes to relieve pressure on their lower limbs and / or stabilize themselves, they may optionally use the invention on only one side (the aforementioned free hand then being the forearm resting on the first support). If they prefer not to place one of their lower limbs on the ground, they may optionally walk with two crutches, at least one of which is a crutch according to the invention (the aforementioned free hand then being the forearm resting on the first support).

[0014] For the purposes of this application, the terms "lower", "upper", "rear", "front", ... should be understood according to the position in service of the crutch when the user's elbow rests in the first support and the crutch is resting on the ground by the end of the shaft opposite to that extended by the frame.

[0015] Optionally, the first support is attached to the stem via its wedge and / or via the base.

[0016] Optionally, at least one of the longitudinal sides extends over only part of the length of the base. Optionally, a raised area may be present on the upper surface of the base, intended to be in contact with a user's forearm.

[0017] Optionally, the attachment is linked to the base by being secured to the base behind the top of the raised area.

[0018] Optionally, at least one furrow is made longitudinally in the raised area.

[0019] Optionally, a second support includes at least one attachment intended to surround at least part of the user's forearm.

[0020] Optionally, the second support extends the stem.

[0021] Optionally, an additional support includes at least one attachment intended to encircle the user's forearm.

[0022] Optionally, the additional support extends into the continuation of the base of the first support.

[0023] Optionally, an upper surface of the base, intended to be in contact with a forearm of the user, forearm extended by the aforementioned hand, has an area raised relative to the rest of the upper surface, said raised area being arranged so as to be further from a proximal end of the base, connected to the stem, than a distal end of said base.

[0024] Other features and advantages of the invention will become apparent from the following description of particular and non-limiting embodiments of the invention.

[0025] BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Reference will be made to the attached drawings, including:

[0027] [Fig. 1] is a perspective view of a crutch according to a first embodiment of the invention;

[0028] [Fig. 2] is a side view of a user using the crutch as illustrated in figure 1 in different situations;

[0029] [Fig. 3] is a top view of the user using the crutch as illustrated in figure 1 in another situation;

[0030] [Fig. 4] is a side view of a user using the crutch as illustrated in figure 1 when he places his arm vertically downwards;

[0031] [Fig. 5] is a side view of the user using the crutch as illustrated in figure 1 while walking;

[0032] [Fig. 6] is a side view of a crutch according to a second embodiment of the invention;

[0033] [Fig. 7] is a side view of a user using the crutch as illustrated in figure 6 in walking phase;

[0034] [Fig. 8] is a side view of a crutch according to a third embodiment of the invention; [Fig. 9] is a side view of a user using the crutch as illustrated in Figure 8 in the walking phase;

[0035] [Fig. 10] is a side view of a crutch according to a fourth embodiment of the invention;

[0036] [Fig. 11] is a side view of a user using a crutch according to a fifth embodiment of the invention.

[0037] DETAILED DESCRIPTION OF THE INVENTION

[0038] With reference to figures 1 to 5, a crutch 1 according to a first embodiment will be described.

[0039] The crutch 1 includes a shaft 2. The shaft 2 is extended at its lower end by a tip 3. At its upper end, the shaft 2 is extended by a frame 4 with which a user will cooperate in order to use the crutch 1.

[0040] Preferably, the height of rod 2 is adjustable. Rod 2 is, for example, telescopic.

[0041] Optionally, the rod 2 includes at least one hollow tube and, for example, at least two hollow tubes sliding one inside the other.

[0042] Optionally, the shaft 2 extends straight along at least one section. For example, at least the upper section of the shaft 2 extends along a given axis A. For example, the entire shaft 2 extends straight along axis A. When the crutch 1 is carried by a user with the tip 3 on the ground, axis A extends at an angle relative to the vertical. Preferably, axis A extends from the lower end of the shaft 2 to the upper end of the shaft 2 in the direction away from the user.

[0043] For example, rod 2 is at least partly made of metal.

[0044] Rod 2 is preferably rigid.

[0045] The frame 4 includes at least one first support 10 intended to receive the user's elbow. In the first embodiment, the frame 4 includes only the first support 10.

[0046] The first support 10 comprises a base 11 having a lower surface facing the ground and an upper surface opposite the lower surface. One or more side walls connect the lower surface to the upper surface.

[0047] Base 11 has a length extending longitudinally along an X-axis and a width extending laterally along a Y-axis. Preferably, the X-axis is orthogonal to the Y-axis.

[0048] The lower surface extends orthogonally or inclinedly with respect to the rod 2. For example, the lower surface extends orthogonally or inclinedly with respect to the axis A.

[0049] When the crutch 1 is carried by the user with the tip 3 on the ground, the lower surface can extend at an angle towards the ground or, on the contrary, be parallel to the ground.

[0050] The lower surface can be flat or non-flat.

[0051] Preferably, the upper surface is not flat. The upper surface includes, for example, at least one non-planar area and, for example, a raised area 12 relative to the rest of the upper surface. Preferably, said area 12 is at least partially raised upwards, i.e., in the opposite direction to the lower surface. The raised area 12 can take various forms. The raised area 12 can, for example, be at least partially convex, be at least partially shaped into a portion of a dome, cylinder, hourglass, hyperboloid, etc. In the present case, the raised area 12 is shaped substantially into a portion of a one-sheet hyperboloid. Along a transverse section plane (i.e., normal to the X-axis), the raised area 12 therefore has a cross-section (along a section plane normal to the X-axis) that is concave in its upper part. This concavity facilitates the placement of the user's forearm on the base 11.

[0052] According to a cross-sectional plane (i.e. normal to the X axis), the raised area 12 traces a sinusoid in its upper part and / or is globally shaped into a U.

[0053] Preferably, the concavity of this section is centered on the base 11 and / or on the upper surface along at least the Y axis. The raised area 12 thus has a groove 13 linked to this concavity, which runs from the rear to the front of the base 11. The groove 13 is centered on the raised area along at least the Y axis. The groove 13 extends longitudinally along the X axis.

[0054] Preferably, the raised area 12 is not centered on the base 11 and / or the upper surface along the X-axis. The raised area 12 is arranged so as to be further from a proximal end of the base 11 connected to the stem 2 than from a distal end of said base 11 (opposite the proximal end). The raised area 12 is thus arranged at the front (here along the X-axis) of the base 11 and therefore of the support leg 1.

[0055] The raised area 12 is preferably free of sharp edges. The raised area 12 preferably has only curved junctions with the rest of the base 11.

[0056] Similarly, groove 13 is preferably devoid of sharp edges. Groove 13 preferably presents only curved junction zones with the rest of the base 11, and in particular the raised zone 12.

[0057] Preferably, even outside the raised area 12, the upper surface is not flat. The upper surface includes, for example, at least one additional non-planar area and, for example, a hollow area. Preferably, this area is at least partially hollowed downwards, i.e., towards the lower surface, so as to define a basin 23.

[0058] The bowl 23 extends in a direction that is normal or inclined to the plane comprising the X and Y axes. Preferably, the bowl 23 is centered on the base 11 and / or on the upper surface along at least the Y axis.

[0059] Preferably, the cup 23 is not centered on the base 11 and / or the upper surface along the X axis. The cup 23 is thus arranged so as to be further from the distal end of the base 11 than from the distal end of said base 11. The cup 23 is thus arranged at the rear of the base 11.

[0060] In the present case, the raised area 12 extends in line with the basin 23.

[0061] The basin 23 is preferably free of sharp edges. The basin 23 preferably has only curved junction zones with the rest of the base 11 and in particular with the raised zone 12. Preferably, the base 11 is free of sharp edges.

[0062] Preferably, the base 11 has at least one pad covering at least part of its upper surface and, for example, at least its raised area 12 and, for example, at least its groove 13. The pad includes, for example, a layer of fabric and / or foam.

[0063] The first support 10 also comprises a first longitudinal flank 14a and a second longitudinal flank 14b. The two flanks 14a and 14b may be identical. Thus, the following description of the first flank 14a is also applicable to the second flank 14b.

[0064] The first side 14a is one piece with the base 11, or is fixed to the base 11 by one or more external means so that the first side 14a is fixed in movement to the base 11.

[0065] The first flank 14a extends here from base 11 towards the sky. Its lower end is attached to base 11, its upper end is free.

[0066] The first flank 14a extends either curvedly or straight from the base 11 upwards. The first flank 14a extends either inclinedly or orthogonally to the base 11 and, for example, extends inclinedly or orthogonally to a plane defined by the X and Y axes. For example, the first flank 14a extends parallel to a given plane, a plane that is orthogonal to the plane containing the X and Y axes.

[0067] The first side 14a may be straight or may curve in at least one given plane. Optionally, the first side 14a curves in the plane defined by the X and Y axes (for example, the first side 14a extends from the base 11 in the opposite direction to the stem 2) and / or curves in a plane defined by the Y and Z axes (the Z axis being orthogonal to the Y and Z axes). The first side 14a is, for example, shaped into a tongue. The upper end of the first side 14a is rounded. The first side 14a is taller than it is wide (width considered along the x-axis). The first side 14a is preferably without a sharp edge. The first side 14a preferably has only curved junctions with the rest of the base 11.

[0068] The first flank 14a is arranged here to form a lateral border of the base 11. The first flank 14a thus extends against and / or in the continuation and / or directly forms one of the lateral walls of the base 11 connecting the upper surface to the lower surface of the base 11. The first flank 14a thus presents at least one external surface and at least one internal surface (opposite the corresponding internal surface of the second flank 14b).

[0069] The first side 14a optionally has at least one pad arranged at least partially on its inner surface. The pad includes, for example, a layer of fabric and / or foam.

[0070] Preferably, the first side 14a is arranged at the free end of the base 11. The first side 14a thus forms a front lateral border of the base 11 and here a front lateral border of the stand 1.

[0071] The first flank 14a extends over only part of the length of the base 11.

[0072] It is therefore understood that the two longitudinal sides 14a, 14b are arranged opposite each other, on either side of the base 11. In this way, each side 14a, 14b forms here a front lateral border of the base 11 and therefore of the support 1.

[0073] Preferably, the two longitudinal sides 14a, 14b are arranged opposite each other.

[0074] Preferably, the two longitudinal flanks 14a, 14b are arranged in the upper part of the raised area 12.

[0075] The longitudinal flanks 14a, 14b are thus devoid of sharp edges.

[0076] The first support 10 also includes a wedge 15.

[0077] The wedge 15 is one piece with the base 11, or is fixed to the base 11 by one or more external means (screws, glue, ...) so that the wedge 15 is fixed in movement to the base 11.

[0078] Wedge 15 extends here from base 11 towards the sky. Its lower end is fixed to base 11, its upper end is free.

[0079] The wedge 15 extends either curvedly or straight from the base 11 upwards. The wedge 15 extends at an angle or perpendicularly to the base 11, for example, at an angle or perpendicularly to a plane defined by the X and Y axes. For example, the wedge 15 extends longitudinally from the base 11 at an angle relative to the plane defined by the X and Y axes. The wedge 15 is thus inclined towards the rear of the support 1 in the opposite direction to the free end of the base 11.

[0080] The wedge 15 extends, for example, in a straight line in a given plane (which is here inclined with respect to the plane defined by the X and Y axes). The wedge 15 is then, for example, shaped into a flat plate. Alternatively, the wedge 15 is rounded, at least on the surface intended to be in contact with the user's forearm. This surface is then rounded towards the rear of the support 1.

[0081] The upper end of wedge 15 is also rounded here. Optionally, wedge 15 has a width that narrows between its upper and lower ends. Wedge 15 is preferably free of sharp edges. Wedge 15 preferably has only curved junction areas with the rest of the base 11.

[0082] The wedge 15 has at least one external surface and at least one internal surface (i.e., the surface intended to be against the user's forearm). The wedge 15 optionally has at least one pad, at least partially attached to its internal surface. The pad may, for example, have a layer of fabric and / or foam.

[0083] Preferably, the junction zone between the inner surface of the wedge 15 and the upper surface of the base 11 is free of sharp edges. In this case, the recess 23 forms the junction zone between the wedge 15 and the rest of the upper surface of the base 11. The recess 23 specifically forms a junction zone between the raised area and the wedge 15.

[0084] Preferably, the wedge 15 is arranged at the rear end of the base 11, i.e., at the rod 2. The wedge 15 thus forms a rear edge of the base 11 and, in this case, of the support 1. The wedge 15 extends against and / or in line with and / or forms one of the lateral walls of the base 11, connecting the upper surface to the lower surface of the base 11. For example, the first support 10 is arranged so that the wedge 15 extends in height beyond the upper end of the rod 2.

[0085] Since the longitudinal sides 14a, 14b do not extend over the entire length of the base 11, the longitudinal sides 14a, 14b and the wedge 15 are not in contact.

[0086] Base 11, wedge 15 and longitudinal sides 14a, 14b are for example at least partly made of plastic.

[0087] The first support 10 is fixed to the rod 2 at at least one point on the first support 10. Optionally, the first support 10, and optionally the frame 4, is fixed to the rod 2 via the wedge 15 and / or via the base 11. If the first support 10 is fixed to the rod 2 via the base, this fixing can be made via the rear end of the base 11 and / or via the lower surface of the base 11. Optionally, the first support 10 and / or the rod 2 may include one or more reinforcing elements at their joint and / or fixing point, such as a bracket, a reinforcing bar, a spacer, etc.

[0088] For example, a reinforcing element (such as a bracket 24) is fixed on one side to the lower surface of the base 11 and on the other side to the rod 2. This reinforcing element allows both the base 11 to be fixed to the rod 2 and the overall structure of the stand 1 to be reinforced. Optionally, the first support 10 is also fixed here to the rod 2 via the wedge 15.

[0089] The first support 10 includes at least one attachment 16. The attachment 16 includes, for example, a strap and / or an elastic band.

[0090] Preferably, the length of attachment 16 is adjustable so that it can be adjusted to the user.

[0091] The attachment 16 may, for example, include one or more pads covering at least part of the strap. The pad may, for example, have a layer of fabric and / or foam. Preferably, both ends of the attachment 16 are connected to the base 11.

[0092] For example, the fastener 16 is arranged so as to extend across the base 11 and in particular so as to extend across the upper surface of the base 11. One end of the fastener 16 is thus connected to one side of the base 11 and a second end is connected to an opposite side of the base 11. The fastener 16 thus extends on both sides of the raised area 12 and in the present case on both sides of the groove 13.

[0093] For example, at least one end of the attachment 16 is connected to the base 11. Alternatively, the attachment 16 may have one end connected to the base 11 and a second end connected to the base 11 in a removable manner. This makes it easy to open and / or close the attachment 16 on the user's forearm when it is in the crutch 1.

[0094] Preferably, each end of the fastener 16 is hinged to the base 11. In this way, the fastener 16 can pivot relative to the base 11 around a hinge axis a that passes through both ends of the fastener 16. The hinge axis a is inclined or parallel to the Y-axis and / or is inclined or orthogonal to the X-axis. In this case, the hinge axis a is parallel to the Y-axis.

[0095] Preferably, the fastener 16 is secured to the base 11 at the level of the raised area 12. Preferably, the fastener 16 is secured to the base 11 behind the top of the raised area 12. Preferably, the fastener 16 is secured to the base 11 at the level of the rear ends of the two longitudinal sides 14a, 14b.

[0096] The attachment 16 thus remains closer to the longitudinal flanks 14a, 14b than to the wedge 15 and / or the rod 2. The attachment 16 is thus surrounded externally by the two longitudinal flanks 14a, 14b.

[0097] It should be noted that the crutch 1 described is completely devoid of a handle for the user to grasp. Preferably, the crutch 1 described in this way is shaped so that its center of gravity is located behind the attachment 16 (here along the X-axis). Preferably, the crutch 1 described in this way is shaped so that its center of gravity is located behind the center of a contact area between the attachment 16 and the user's forearm when the crutch 1 is worn by the user.

[0098] When the user wishes to use the crutch 1, he places his forearm on the upper surface of the base 11 and adjusts the length of the attachment 16 on the base 11. Furthermore, he adjusts the length of the attachment 16 so that, preferably, when the forearm is substantially horizontal while resting on the base 11, the attachment 16 is in contact with the forearm.

[0099] The user can then use only the crutch 1, or use crutch 1 on one side and another crutch according to the invention on the other, or a crutch according to the prior art. The user can use crutch 1 while placing both feet on the ground, or while placing only one foot on the ground. Figure 5 illustrates a particular use in which the user walks using only crutch 1 while also placing both feet on the ground.

[0100] In all the aforementioned configurations, one constant remains: the user's hand remains free whether the vehicle is stationary or in motion. The user does not need to grip the kickstand 1 with their hand.

[0101] The proposed crutch 1 therefore leaves the user with a great deal of freedom even when walking.

[0102] With crutch 1 described, an upward movement of the elbow lifts crutch 1 off the ground.

[0103] After the user takes a step forward, the contact area between the attachment 16 and the user's forearm is positioned in front (here along the X-axis) of a contact area between the tip 3 and the ground on which the user is walking. Thus, when the user raises their elbow while walking, a natural forward rotation of the crutch 1 is generated around the center of the contact area between the attachment 16 and the user's forearm. This facilitates the user's foot placement for the next step and thus makes walking easier.

[0104] When not walking, a neutral user position, visible in Figure 2, can be defined. In this position, the user is stationary, with their elbow bent at approximately a right angle to their forearm, which is approximately parallel to the ground, and the user is supported by the crutch 1, which rests on the ground via its stem 2.

[0105] In the user's neutral position, the back of their arm is opposite the wedge 15. Their forearm may or may not touch the wedge 15.

[0106] His forearm rests on base 11 and, in particular, on the raised area 12. More precisely, his forearm rests in groove 13 of base 11. It is therefore clear that groove 13, advantageously shaped into a hollow, allows it to conform best to the shape of a forearm. His forearm is framed laterally by the two sides 14a, 14b. Preferably, his forearm is not in contact with the two sides 14a, 14b. The attachment 16 is in contact with his forearm.

[0107] The most prominent area of ​​his elbow is therefore not in contact with crutch 1.

[0108] In the neutral position, only the user's forearm is in contact with the crutch 1 (and only here with the raised area 12 of the crutch 1).

[0109] For example, the forearm can flex. In particular, the forearm can flex towards the forearm: over a first interval this does not cause any movement of the rod 2, and, over a second interval, the attachment 16 and / or the wedge 15 then causes a movement of the rod 2. Alternatively, the attachment 16 can be adjusted to allow full flexion-extension of the forearm without causing any movement of the rod 2.

[0110] It is noted that the raised area 12 facilitates the flexion of the user's forearm.

[0111] For example, the forearm can be extended. In particular, the forearm can be extended until it tightens the attachment 16. The extension of the forearm then does not cause any movement of the rod 2. If the user wishes to extend their forearm even further, this is possible, the attachment 16 then causing a movement of the rod 2. In particular, the attachment 16 will brace itself between the user's arm and the base 11, forcing the rod 2 to rise. The rod 2 will therefore rise, but without fully following the movement of the forearm and / or the back arm, as seen in Figure 4. Extending the forearm does not cause a significant movement of the crutch 1, and in particular of the rod 2. This limits the bulk of the crutch 1. The user can thus fully extend their arm vertically and downwards.The crutch 1 does not slip on the user's arm thanks to the bracing of the attachment 16. Note that the raised area 12 facilitates the extension of the user's forearm. For example, the user can also bend their arm downwards. Here again, the crutch 1 does not slip along the user's arm thanks to the bracing of the attachment 16. Again, the rod 2 will rise, but without fully following the movement of the forearm and / or upper arm. Bending does not result in significant movement of the crutch 1, and in particular of the rod 2. This limits the overall size of the crutch 1.

[0112] For example, the user can also raise their arm upwards without difficulty. The crutch 1 remains in place on their arm via the attachment 16.

[0113] It is noted that the partial rotation of the forearm in "lateral rotation" (around the axis along which the forearm extends) without moving the rod 2 is minimal. Indeed, if the user rotates their forearm laterally relative to their forearm, they almost immediately come to rest against one or the other of the sides 14a, 14b. Consequently, the attachment 16 and / or at least one of the sides 14a, 14b causes a movement of the rod 2. Thus, even large lateral movements of the forearm can be transmitted to the crutch 1. This allows for increased control of the crutch 1. During walking, this also allows for more precise adjustment of the relative position of the crutch 1 with respect to the user and the ground between each step.

[0114] The crutch 1 described above is carried at the elbow. The crutch 1 described above does not have a handle.

[0115] The crutch 1 described above allows freedom of movement of the hand and, to a lesser extent, of the forearm during walking or other movements (i.e., that the hand and / or forearm 1 does not cause movement from the rod 2).

[0116] In particular, crutch 1 as described leaves the hand free even when walking.

[0117] The crutch 1 described above remains in place primarily through bracing. For example, when it is necessary to lower the arm to grasp an object at least below the user's elbow, the bracing phenomenon prevents the crutch 1 from slipping and, in particular, allows the first support 10 to remain in place at elbow level. The same phenomenon occurs when the user takes a step backward or lowers their arm to a vertical position.

[0118] Note that at the most prominent part of the elbow, the first support 10 is open (indeed, the sides 14a, 14b do not extend to the wedge 15). This allows the user to raise their arm and / or move their elbow laterally while keeping the support 1 vertical. It is therefore possible to raise the elbow, for example, to climb stairs or to reach objects overhead.

[0119] It is therefore clear that crutch 1 supports the user while offering a wide range of movement, whether stationary or walking. In particular, the user's hand remains free at all times. Crutch 1 thus provides the user with considerable freedom of movement, even while walking.

[0120] With reference to figures 6 to 7, a crutch 1 according to a second embodiment of the invention will now be described.

[0121] The crutch 1 according to the second embodiment comprises all the elements that have been described for the first embodiment. In particular, the crutch 1 according to the second embodiment comprises the same rod 2, the same end piece 3 and the same first support 10 (including wedge 15, flanks 14a, 14b, lower surface, upper surface and attachment 16) as the first embodiment.

[0122] The frame 4 of the crutch 1 according to the second embodiment includes, however, an additional support, called the second support 20.

[0123] In the case of the second embodiment, frame 4 only includes the first support 10 and the second support 20.

[0124] This second support 20 will now be described.

[0125] The second support 20 has a base 21. The base 21 has at least one tube (hollow) or one rod (solid). The base 21 is, for example, at least partly made of metal.

[0126] The base 21 extends here following the stem 2.

[0127] According to a first option, the base 21 is one piece with the rod 2 and therefore forms an upper extension of the rod 2.

[0128] According to a second option, the base 21 is fixed with an indelible material to the rod 2.

[0129] According to a third option, the base 21 is removably attached to the rod 2. The base 21 can, for example, be temporarily attached to the rod 2 by means of temporary fastening (screws, clamps, etc.). The base 21 can, for example, be temporarily attached to the rod 2 by clipping. For example, the base 21 is inserted into the open, hollow upper end of the rod 2 and held in place there, or conversely, the upper end of the rod 2 is inserted into the open, hollow lower end of the base 21.

[0130] With the third option, the second support 20 described is fully integrable into the support 1 of the first embodiment. The third option is therefore preferable, as it allows the user to modify the support 1 according to their intended use by removing the second support 20 from the rest of the support 1 or, conversely, by attaching the second support 20 to the rest of the support 1.

[0131] The second support 20 thus extends above the first support 10.

[0132] The base 21 extends straight along a given axis on at least one segment. In this case, at least the upper segment of the base 21 extends along a given axis B. For example, the base 21 has a first segment extending along axis B between the upper end of the base 21 and a second segment extending along axis C between the first segment and the lower end of the base 21. The first segment is, for example, longer than the second segment. The axis B and the axis C are, for example, inclined relative to each other. For example, the base 21 forms a bend facing the rear of the support leg 1.

[0133] Axis B is, for example, inclined with respect to axis A. Optionally, axis C coincides with axis A. Axis B is, for example, vertical when the crutch 1 rests on the ground.

[0134] Preferably, the base 21 has an adjustable length. This allows the length of the base 21 to be adjusted to suit the user's body type.

[0135] Base 21 is preferably free of sharp edges.

[0136] The second support 20 includes at least one attachment 22. The attachment 22 includes, for example, a strap.

[0137] Preferably, the length of attachment 22 is adjustable so that it can be adjusted to the user.

[0138] The attachment 22 may, for example, include one or more pads covering at least part of the strap. The pad may, for example, have a layer of fabric and / or foam. Preferably, both ends of the attachment 22 are connected to the base 21.

[0139] For example, the fastener 22 is arranged so as to extend across the base 21. One end of the fastener 22 is thus attached to one side of the base 21 and a second end is attached to an opposite side of the base 21. For example, at least one end of the fastener 22 is attached to the base 21. Preferably, at least one end of the fastener 22 is attached removably to the base 21.

[0140] Optionally, the attachment 22 has a first end connected to the base 21 and a second end removably connected to the base 21. In this way, it is easy to open the attachment 22 and / or close it on the user's arm when the latter is in place in the crutch 1.

[0141] Preferably, each end of the bracket 22 is hinged to the base 21. In this way, the bracket 22 can pivot relative to the base 21 about a hinge axis p that passes through both ends of the bracket 22. The hinge axis p is inclined or parallel to the Y-axis and / or inclined or orthogonal to the X-axis and / or inclined or parallel to the hinge axis a. In this case, the hinge axis p is parallel to the Y-axis.

[0142] Preferably, the fastener 22 is attached to the base 21 at its upper part, for example at its first section. Preferably, the fastener 22 is attached to the upper end of the base 21.

[0143] It should be noted that the crutch 1 described is completely devoid of a handle for the user's hand to grasp. Preferably, the crutch 1 described in this way is shaped so that its center of gravity is located behind the attachment 22. Preferably, the crutch 1 described in this way is shaped so that its center of gravity is located behind the center of a contact area between the attachment 22 and the user's forearm when the crutch 1 is worn by the user.

[0144] When the user wishes to use the crutch 1, they place their forearm on the upper surface of the base 11 and adjust the length of the strap 22 on the base 11. For example, they adjust the length of the strap 22 so that, preferably, when the forearm is approximately horizontal while resting on the base 11, the strap 22 is in contact with the forearm. Furthermore, they wrap the strap 22 around their forearm and adjust its length so that it is in contact with the forearm. Here, they also adjust the length of the base 21 so that the strap 22 is positioned on the upper part of the forearm, approximately at the level of the user's armpit.

[0145] The user can then use only the crutch 1, or use crutch 1 on one side and another crutch according to the invention on the other, or a crutch according to the prior art. The user can use crutch 1 while placing both feet on the ground, or while placing only one foot on the ground. Figure 8 illustrates a particular use in which the user walks using only crutch 1 while also placing both feet on the ground.

[0146] In all the aforementioned configurations, one constant remains: the user's hand remains free whether the user is stationary or moving. The user does not need to grip the crutch 1 with their hand. Furthermore, the contact of the forearm with the attachment 22 strengthens the connection between the user and the crutch 1. This can reassure users. In particular, the crutch 1 remains more extended than in the first embodiment. This can make the use of the crutch 1 easier to grasp, especially for users unfamiliar with crutches.

[0147] The proposed crutch 1 therefore leaves the user with a great deal of freedom even when walking.

[0148] The neutral position is the same in the second embodiment as in the first embodiment.

[0149] For example, the forearm can flex towards the forearm: in a first interval this does not cause any movement of the rod 2, and, in a second interval, the attachment 16 and / or the wedge 15 then causes a movement of the rod 2. Alternatively, the attachment 16 can be adjusted so as to allow a full flexion-extension of the forearm without causing the rod 2 to move.

[0150] It is noted that the raised area 12 facilitates the flexion of the front of the user.

[0151] For example, the forearm can be extended. In particular, the attachment 16 will brace itself between the user's arm and the base 11. The rod 2 will therefore rise, following the movement of the forearm and / or upper arm more closely than in the first embodiment. The user can thus fully extend their arm vertically and downwards. The crutch 1 does not slip on the user's arm thanks to the bracing of the attachment 16 and / or the attachment 22. Note that the raised area 12 facilitates the extension of the user's forearm.

[0152] For example, the user can also bend their arm downwards. Here again, the crutch 1 does not slip along the user's arm thanks to the bracing of the attachment 16 and / or the attachment 22. Again, the stem 2 will rise, following the movement of the forearm and / or upper arm more closely than in the first embodiment. For example, the user can also raise their arm upwards without difficulty. The crutch 1 remains in place on their arm via the attachment 16 and / or the attachment 22.

[0153] Preferably, the crutch 1 allows at least partial lateral rotation of the forearm around the axis along which the forearm extends. This ensures that even large lateral movements of the forearm can be transmitted to the crutch 1, resulting in increased control of it. During walking, this also allows for more precise adjustment of the crutch 1's relative position to the user and the ground between each step.

[0154] It is understood that the control of crutch 1 is precise and / or intuitive in this second embodiment. Indeed, crutch 1 remains aligned with the axis of the forearm for almost all of its movements.

[0155] The crutch 1 described above is carried at the elbow and the forearm. The crutch 1 described above does not have a handle for the user to hold.

[0156] The crutch 1 described above allows freedom of movement of the hand and, to a lesser extent, of the forearm during walking or other movements (i.e., the hand and / or forearm) 1 does not cause movement from the rod 2).

[0157] In particular, crutch 1 as described leaves the hand free even when walking.

[0158] The crutch 1 thus described is held in place mainly by bracing and / or via the attachment 22. It is noted that at the most salient part of the elbow the first support 10 is open (indeed the sides 14a, 14b do not extend to the wedge 15).

[0159] It is therefore clear that crutch 1 supports the user while offering a wide range of movement, whether stationary or walking. In particular, the user's hand remains free at all times. Crutch 1 thus provides the user with considerable freedom of movement, even while walking.

[0160] The crutch 1 is also modular since the second support 20 can be detached from the rest of the crutch 1 and / or the second support 20 can remain in place on the first support 10 with the user not connecting their forearm to the second support 20. It is thus possible for the user to use the crutch 1 according to the first embodiment or according to the second embodiment by attaching or not their forearm to the base 21 and / or by removing the second support 20 from the rest of the crutch 1.

[0161] With reference to figures 8 to 9, a crutch 1 according to a third embodiment of the invention will now be described.

[0162] The crutch 1 according to the third embodiment comprises all the elements that have been described for the second embodiment. In particular, the crutch 1 according to the second embodiment comprises the same rod 2, the same end piece 3 and the same first support 10 (including wedge 15, sides 14a, 14b, lower surface, upper surface and attachment 16) as the first embodiment and the same second support 20 (base 21 and attachment 22) as in the second embodiment.

[0163] The frame 4 of the crutch 1 according to the third embodiment includes, however, an additional support, called the third support 30.

[0164] In the case of the third embodiment, frame 4 only includes the first support 10, the second support 20, and the third support 30.

[0165] This third support 30 will now be described.

[0166] The third support 30 extends here in line with the first support 10 and for example in line with the base 11.

[0167] The third support 30 has a base 31. The base 31 is, for example, at least partly made of metal. The base 31 can be flexible or rigid. The base 31 has a rod and / or a ruler.

[0168] The base 31 is, for example, attached to the free end of the base 11.

[0169] According to a first option, the base 31 is one piece with the base 11 and therefore forms a longitudinal extension of the base 11.

[0170] According to a second option, the base 31 is fixed in a non-removable manner to the base 11.

[0171] According to a third option, the base 31 is removably mounted to the base 11. The base 31 can, for example, be temporarily mounted on the base 11 using temporary fastening means (screws, clamps, etc.). The base 31 can also be temporarily mounted on the base 11 by clipping it into place. For example, the base 31 is inserted into the free end of the base 11 and held in place there, or conversely, the free end of the base 11 is inserted into one end of the base 31.

[0172] With the third option, the third support 30 described is fully integrable into the support 1 of the first embodiment and / or the second embodiment. The third option is therefore preferable, as it allows the user to modify the support 1 according to their intended use, either by removing the third support 30 from the rest of the support 1 or, conversely, by attaching the third support 30 to the rest of the support 1.

[0173] The base 31 extends here straight ahead, over at least one section, along a given axis D. The axis D is for example inclined or parallel to the axis X. For example, the base 31 extends towards the front of the support 1 (in the opposite direction to the attachment of the base 11 to the rod 2) while being inclined towards the ground.

[0174] For example, the base 31 is fixed to the base 11 by being centered on the base 11 (with respect to the Y-axis). The base 31 is, for example, fixed to the base 11 by being mounted movably on said base 11. For example, the base 31 is mounted in a hinged manner on the base 11 around a hinge axis y-. The hinge axis is, for example, parallel to the a-axis and / or the p-axis.

[0175] Preferably, the base 31 has an adjustable length. This allows the length of the base 31 to be adjusted to suit the user's body type. For example, the base 31 is telescopic.

[0176] The base 31 is preferably free of sharp edges. The third support 30 has at least one attachment 32. The attachment 32 has, for example, a strap.

[0177] Preferably, the length of attachment 32 is adjustable so that it can be adjusted to the user.

[0178] The attachment 32 may, for example, include one or more pads covering at least part of the strap. The pad may, for example, have a layer of fabric and / or foam. Preferably, both ends of the attachment 32 are connected to the base 31.

[0179] For example, the fastener 32 is arranged so as to extend over the base 31 and in particular so as to extend over the upper surface of the base 31. A first end of the fastener 32 is thus connected to one side of the base 31 and a second end is connected to an opposite side of the base 31.

[0180] For example, at least one end of the attachment 32 is connected to the base 31. Alternatively, the attachment 32 may have one end connected to the base 31 and a second end removably connected to the base 31. This makes it easy to open and / or close the attachment 32 on the user's forearm when it is in the crutch 1.

[0181] Preferably, each end of the fastener 32 is hinged to the base 31. In this way, the fastener 32 can pivot relative to the base 31 about a pivot axis 5 that passes through both ends of the fastener. The pivot axis 5 is inclined or parallel to axis a and / or inclined or parallel to axis p and / or inclined or parallel to axis y-

[0182] It should be noted that the crutch 1 described is completely devoid of a handle for the user to grasp. Preferably, the crutch 1 described in this way is shaped so that its center of gravity is located behind the attachment 16. Preferably, the crutch 1 described in this way is shaped so that its center of gravity is located behind the center of a contact area between the attachment 16 and the user's forearm when the crutch 1 is worn by the user.

[0183] When the user wishes to use the crutch 1, they place their forearm on the upper surface of the base 11. They then adjust the length of the strap 16 on the base 11. Furthermore, they adjust the length of the strap 16 so that, preferably, when the forearm is approximately horizontal while resting on the base 11, the strap 16 is in contact with the forearm. They then wrap the strap 22 around their forearm and adjust its length so that it is in contact with the forearm. Finally, they also adjust the length of the base 21 so that the strap 22 is positioned on the upper part of the arm, approximately at the level of the user's armpit. Furthermore, he wraps this strap 32 around his forearm. He also adjusts the length of the strap 32 so that it is in contact with his forearm. Here, he also adjusts the length of the base 31 so that the strap 32 is at the level of the user's wrist.

[0184] The user can then use only the crutch 1, or use crutch 1 on one side and another crutch according to the invention on the other, or a crutch according to the prior art. The user can use crutch 1 while placing both feet on the ground, or while placing only one foot on the ground. Figure 9 illustrates a particular use in which the user walks using only crutch 1 while also placing both feet on the ground.

[0185] In all the aforementioned configurations, one constant remains: the user's hand remains free whether the vehicle is stationary or in motion. The user does not need to grip the kickstand 1 with their hand.

[0186] Furthermore, the contact of the forearm with the attachment 22 on the one hand and between the forearm and the attachment 32 on the other hand, helps to strengthen the connection between the user and the crutch 1. This can help to reassure users.

[0187] The proposed crutch 1 thus proves to be very ergonomic for the user.

[0188] The neutral position is the same in the third embodiment as in the first embodiment.

[0189] For example, the forearm can flex towards the forearm: in a first interval this does not cause any movement of the rod 2, and, in a second interval, the attachment 16 and / or the wedge 15 then causes a movement of the rod 2. Alternatively, the attachment 16 can be adjusted so as to allow a full flexion-extension of the forearm without causing the rod 2 to move.

[0190] It is noted that the raised area 12 facilitates the flexion of the front of the user.

[0191] For example, the forearm can be extended. In particular, the forearm can be extended until it tightens the attachment 16. The extension of the forearm then does not cause any movement of the rod 2. If the user wishes to extend their forearm even further, this is possible, the attachment 16 then causing a movement of the rod 2. In particular, the attachment 16 will brace itself between the user's arm and the base 11, forcing the rod 2 to rise. The rod 2 will therefore rise, but without fully following the movement of the forearm and / or the back arm, as seen in Figure 9. Extending the forearm does not cause a significant movement of the crutch 1, and in particular of the rod 2. This limits the bulk of the crutch 1. The user can thus fully extend their arm vertically and downwards.The crutch 1 does not slip on the user's arm thanks to the bracing of the attachment 16. Note that the raised area 12 facilitates the extension of the user's forearm. For example, the user can also bend their arm downwards. Here again, the crutch 1 does not slip along the user's arm thanks to the bracing of the attachment 16. Again, the rod 2 will rise, but without fully following the movement of the forearm and / or upper arm. Bending does not result in significant movement of the crutch 1, and in particular of the rod 2. This limits the overall size of the crutch 1.

[0192] For example, the user can also raise their arm upwards without difficulty. The crutch 1 remains in place on their arm via the attachment 16.

[0193] Preferably, the crutch 1 allows at least partial lateral rotation of the forearm around the axis along which the forearm extends. This ensures that even large lateral movements of the forearm can be transmitted to the crutch 1, resulting in increased control of it. During walking, this also allows for more precise adjustment of the crutch 1's relative position to the user and the ground between each step.

[0194] The crutch 1 described above is carried at elbow level. The crutch 1 described above does not have a handle for the user to hold.

[0195] The crutch 1 described above allows freedom of movement of the hand and, to a lesser extent, of the forearm during walking or other movements (i.e., the hand and / or forearm) 1 does not cause any movement on the part of the rod).

[0196] In particular, crutch 1 as described leaves the hand free even when walking.

[0197] The crutch 1 described above is held in place primarily by bracing and / or via the attachment 22. For example, when it is necessary to lower the arm to grasp an object, the bracing and / or the attachment 22 prevent the crutch 1 from slipping and, in particular, allow the first support 10 to remain in place at the elbow. The same phenomenon occurs when the user takes a step backward or lowers their arm to a vertical position.

[0198] Note that at the most prominent part of the elbow, the first support 10 is open (indeed, the sides 14a, 14b do not extend to the wedge 15). This allows the user to raise their arm while keeping the crutch 1 vertical. It is therefore possible to raise the elbow, for example, to climb stairs or to reach objects overhead. Thus, the crutch 1 supports the user while offering a wide range of movement, whether stationary or walking. In particular, the user's hand remains free at all times. The crutch 1 is therefore very ergonomic.

[0199] It is understood that the third support 30 allows for a better distribution of the forces felt by the user than in the first embodiment, in order to limit the tightening phenomenon at the attachment 16 (during cases of flexing, for example, when the user bends over). Indeed, for example, with the third support 30, when the arm is vertical, part of the weight of the crutch 1 rests on the wrist, which helps to limit the tightening around the forearm due to the flexing of the attachment 16.

[0200] This therefore increases the user's comfort of use, without restricting the freedom of movement of their hand or, to a lesser extent, their forearm.

[0201] With reference to figure 9, a crutch 1 according to a fourth embodiment of the invention will now be described.

[0202] The kickstand 1 according to the fourth embodiment includes all the elements described for the first embodiment. In particular, the kickstand 1 according to the fourth embodiment includes the same stem 2, the same end piece 3, and the same first support 10 (including the wedge 15, flanks 14a and 14b, lower surface, upper surface, and attachment 16) as in the first embodiment. However, the frame 4 of the kickstand 1 according to the fourth embodiment includes an additional support, which is the third support 30 described previously.

[0203] In the case of the fourth embodiment, the frame 4 only includes the first support 10 and the third support 30. In particular, the crutch 1 according to the fourth embodiment does not include a second support as in the second or third embodiment.

[0204] It is therefore understood that if the second support 20 and the third support 30 are removable from the rest of the stand 1, it is possible to use the stand 1 according to any of the illustrated embodiments. The stand 1 thus proves to be particularly modular for the user.

[0205] Of course, the invention is not limited to the embodiments described but encompasses any variant falling within the scope of the invention as defined by the claims.

[0206] Although the various rods shown here are entirely straight along their entire length, at least one of the rods may be straight for only part of its length or be at least partially curved. This rod may also be straight in sections, each section forming an angle or a curve with the adjacent section(s). For example, the rod may be curved between its lower and upper ends. For example, the rod may be curved by bending towards the rear of the crutch when the crutch is carried by the user. Generally, for the purposes of this application, the term "rod" should be understood in the general sense of an elongated piece, which is not necessarily straight and may thus be curved as described above. Although the base is angled between its two sections, the base may be entirely straight along its entire length.The base may be straight along only part of its length or be at least partially curved. The base may also be straight in sections, with each section forming an angle or curve with the adjacent section(s). For example, the base may be curved between its lower and upper ends. For example, the base may be curved so that it curves towards the rear of the user when the crutch is being carried.

[0207] Although the base is perfectly straight along its entire length, it could be straight for only part of its length or be at least partially curved. The base could also be straight in sections, with each section forming an angle or curve with the adjacent section(s). For example, the base could be curved between its two ends. For instance, the base could be curved towards the user's base when the crutch is being carried.

[0208] The wedge and / or at least one of the longitudinal sides of the first support can be removably mounted on the base. This allows, for example, the user to modify the dimensions of the first support by inserting a new wedge and / or at least one new side with different dimensions.

[0209] Preferably, the kickstand pad(s) should be mounted on a removable part of the kickstand. This will allow for easy replacement or cleaning of the pads.

[0210] The base may include an adjustable length to adapt to the morphology of the user's forearm.

[0211] The base and / or stand may include at least one pad. The pad may, for example, consist of a layer of fabric and / or foam.

[0212] It may be envisaged that the crutch be shaped so that its center of gravity is at or in front of the center of a contact area between the attachment of the base and the user's forearm when the crutch is carried by the user.

[0213] At least one of the described sides may have a different shape and / or dimensions than what has been described. At least one of the described sides may be made of a different or the same material as the support. At least one of the described sides may be made of a material such that the side is at least partially or entirely rigid and / or at least partially or entirely flexible.

[0214] At least one of the described supports may differ from what has been indicated. For example, Figure 11 illustrates a variant of the second embodiment. In this variant, the crutch 1 is identical to that of the second embodiment except for the shape of the attachment 22. This attachment includes a strap 25 (for example, a rigid strap) that will partially encircle the user's forearm. For example, the strap 25 is shaped as an open loop and, for example, as a half-loop. For example, the strap 25 is shaped as an arc of a circle and, for example, as a half-circle. The strap 25 is, for example, intended to be positioned on the upper part of the user's forearm and, for example, at the level of the user's armpit. The strap 25 is, for example, intended to encircle the outside of the user's forearm.

[0215] The attachment 22 also includes a harness 26 to which at least one end of the link 25 is attached (for example the one arranged in front of the user), the harness 26 being of course worn by the user.

[0216] Attaching it to the harness 26 allows part of the weight of the crutch 1 to be transferred to the user's shoulders, thus increasing long-term comfort for the user.

[0217] Advantageously, the link 25 is temporarily attached to the harness. For example, the link 25 has one or more attachment lines to one or more attachment points of the harness 26 (of the loop / carabiner type).

[0218] Thus it is easy to detach the link 25 from the harness 26. The user can therefore easily decide to use the kickstand 1 with or without his harness, without having to remove his harness.

[0219] This variant of attachment 22 is of course also applicable to other embodiments.

Claims

DEMANDS 1. A crutch (1) leaving one hand of the user free when in use, the crutch comprising a shaft (2) and at least one frame (4) attached to an upper part of the shaft, the frame comprising at least one first support (10) intended to receive the user's elbow, the first support comprising at least one base (11) and at least two longitudinal flanks (14a, 14b) extending from the base on either side thereof, the first support further comprising a wedge (15) extending from the base, behind the flanks, the first support being equipped with at least one fastener (16).

2. Kickstand according to claim 1, wherein the first support (10) is secured to the rod (2) via its wedge (15) and / or via the base (11).

3. A crutch according to any one of the preceding claims, wherein at least one of the longitudinal sides extends over only a portion of the length of the base (11) • 4. Crutch according to any one of the preceding claims, wherein an upper surface of the base (11), intended to be in contact with a forearm of the user, has a raised area (12).

5. Kickstand according to claim 4, wherein the attachment (16) is linked to the base (11) by being secured to the base behind the top of the raised area (12).

6. A crutch according to claim 4 or claim 5, wherein at least one groove (13) is formed longitudinally in the raised area (12).

7. A crutch according to any one of the preceding claims, comprising a second support (20) including at least one attachment (22) intended to surround at least partially one of the user's forearms.

8. A crutch according to claim 7, wherein the second support (20) extends the shaft (2).

9. Crutch according to any one of the preceding claims, comprising an additional support (30) including at least one attachment (32) intended to surround the forearm of the user.

10. Kickstand according to claim 9, wherein the additional support (30) extends in line with the base (11) of the first support (10).

Images