KR101766779B1 - Safety stick for patients with lower extermities physical disabilities and the elderly and infirm - Google Patents

Abstract

Embodiments of the present invention relate to a safety stick for nether extremities crippled people, and old and infirm people lack of freedom in walking. In the safety stick for the nether extremities crippled people, and the old and infirm people lack of freedom in walking, comprised are: a plurality of sticks extending in the vertical direction; an adjusting device provided between the sticks and rotatably provided; a handle provided at an upper part of the sticks and having a strap; and a support assembly provided at a lower part of the sticks and provided with a spring, wherein the adjusting device includes a fixing socket having a hooked protrusion fixed to one stick of the sticks and having the one stick and the other sticks inserted thereinto; and a fastener coupled to the outside of the fixing socket and moving up and down in a tightening position or an unlocking position in accordance with the rotating operation.

Description

[BACKGROUND OF THE INVENTION] [0001] The present invention relates to a safety stick for a person with a physical disability,

The present invention relates to a safety stick for persons with lower limbs and those with lower limbs.

A walking stick is understood as an assistive device to assist walking for the disabled or for the elderly who are in need of walking.

In the case of a conventional wand, the entire length of the wand can be adjusted in consideration of the user's key, arm length, and the like. However, the structure of the wand is inconvenient and the user's hands can not be protected.

Particularly, the handicapped or elderly people use the cane for a long period of time. When the conventional cane is used, the angle of the user's wrist is abnormally bent and the weight of the user is concentrated on the wrist.

In this case, a continuous load is applied to a user's hand, and a problem arises that the Palmaraponeurosis, which forms a layer under the skin of the palm, grows thick and the fingers are shrunken and can not spread well.

On the other hand, climbing sticks made for mountain climbing can also be used by the disabled or the elderly. The climbing stick is provided with a handle for holding a hand and a strap connected to the handle for supporting a user's hand.

In the case of a strap provided on a climbing stick in the related art, the portion supporting the abductor of the little finger is narrow and the user feels inconvenience, and accordingly, only the handle is used in many cases. When such use lasts for a long time, there is a problem that the arm, the shoulder and the thumb are painful. Here, the supine abductor muscle forms a part of the palm of the hand extending from the little finger toward the wrist part.

With respect to the conventional cane, the following prior art exists.

[Prior Art]

1. Registration number (Registration date): 10-1189149 (October 2, 2012)

2. Title of invention:

In order to solve the above problems, it is an object of the present invention to provide a safety stick which can be easily adjusted in length.

It is another object of the present invention to provide a safety stick capable of alleviating a walking-to-foot impact.

The safety stick for the person with a physical disability and the person with a physical disability according to the present embodiment includes a plurality of sticks extending in the vertical direction; A regulating device provided between the plurality of sticks and rotatably provided; A handle provided on the plurality of sticks and having a strap; And a support bar assembly provided at a lower portion of the plurality of sticks and including a spring, wherein the adjustment device is provided with a locking protrusion fixed to the one of the plurality of sticks, Fixed socket; And a fastener coupled to the outside of the stationary socket, wherein the fastener is moved up and down to a tightening position or a loosening position in accordance with a rotation operation.

The fastener includes a fastener body having an open first upper opening and an open first lower opening; And a first screw thread formed on an inner circumferential surface of the fastening body, and the fastening socket is inserted into the internal space of the fastening body.

The fixed socket includes a socket body having an opened second upper opening and an opened second lower opening; A second screw thread provided on an outer circumferential surface of the socket body and cooperating with the first screw thread; A plurality of cutouts provided in the socket body and having an incised shape; And fixing protrusions provided on the plurality of cutouts and coupled to fixing grooves formed on outer surfaces of the plurality of sticks.

The plurality of sticks include an upper stick, a central stick, and a lower stick, and the adjusting device includes a first adjusting device for adjusting a relative position of the upper stick and the center stick; And a second adjusting device for adjusting a relative position of the center stick and the bottom stick.

The support assembly includes a stick connection portion coupled to a lower side of the lower stick and having a stick insertion portion on which the spring is installed; And a support rod inserted into the support rod insertion portion of the stick connection portion, wherein the stick insertion portion and the support rod insertion portion communicate with each other, and the inner diameter of the stick insertion portion is larger than the inner diameter of the support rod insertion portion .

A pin guide hole formed in the lower stick and extending in a vertical direction; And a fixing pin inserted in the pin guide hole, wherein the spring engages with the pin guide hole when the lower stick is moved downward, And is interfered at the upper end.

The strap includes: a handgrip support portion for supporting a user's handgrip; A strap connected to the handgrip support and supported on an upper portion of the handle; And an assembly bolt detachably coupling the lower portion of the hand holding portion to the handle, wherein the string is adjustable in length.

According to the above-described embodiment, since a plurality of sticks having different widths or diameters are included, and the adjustment device is provided between the plurality of sticks, the effect that the length can be easily adjusted according to the user's key or arm length appear. Particularly, since the operation of the regulating device is easy by a simple rotation operation, there is an advantage that the use of the disabled person or the elderly person is easy.

Further, since the plurality of sticks can be firmly fixed after the operation of the adjusting device, the use of the safety stick by the handicapped person or the elderly person can prevent the plurality of sticks from being inadvertently adjusted in length. Specifically, when the user fastens the fastener, the fixing protrusion of the fixing socket can be inserted into the fixing groove of the stick to maintain a firm fixed state between the plural sticks.

In addition, the fixed socket has a plurality of cutouts formed therein, so that when the fixed socket is coupled to the stick, deformation of the fixed socket can be made and easily coupled to the stick. Therefore, since the outer circumferential surface of the stick can be formed in a circular shape or a polygonal shape, it is possible to realize a circular stick or a polygonal stick.

Further, since the support rod assembly is provided at the lower portion of the safety stick, and the support rod assembly is provided with a device capable of mitigating the impact that may occur, when the disabled or the elderly person is walking using the safety stick It has the advantage that it does not go to hand or arm.

In addition, since the handle of the safety stick is provided with a strap which can wrap around the outer abdominal muscles, the comfort of the user can be achieved. Further, since the strap is detachably coupled with the assembly bolt, it is easy to replace the strap according to the user's taste.

In addition, the handle is provided with an acupressure projection to prevent a slip of a user's hand and to help improve health.

1 is a perspective view showing the construction of a safety stick according to a first embodiment of the present invention.
2 is a side view showing a configuration of a safety stick according to a first embodiment of the present invention.
3 is another side view showing the construction of the safety stick according to the first embodiment of the present invention.
4 is an exploded perspective view showing a configuration of a regulating device according to a first embodiment of the present invention.
5 is a cross-sectional view taken along line V-V 'of FIG.
6 is an enlarged view of a portion A in Fig.
7 is a view showing a combination of a support rod assembly and a lower stick according to the first embodiment of the present invention.
8 is a cross-sectional view taken along line VIII-VIII 'of FIG.
9 is a cross-sectional view showing a compressed state of a spring when a load acts on a support assembly according to the first embodiment of the present invention.
10 is a perspective view showing a configuration of a safety stick according to a second embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. It is to be understood, however, that the spirit of the invention is not limited to the embodiments shown and that those skilled in the art, upon reading and understanding the spirit of the invention, may easily suggest other embodiments within the scope of the same concept.

FIG. 1 is a perspective view showing the construction of a safety stick according to a first embodiment of the present invention, FIG. 2 is a side view showing the construction of a safety stick according to a first embodiment of the present invention, 1 is a side view showing a configuration of a safety stick according to an embodiment.

1 to 3, the safety stick 10 according to the first embodiment of the present invention includes a plurality of sticks 110, 120, and 130, a handle 150 coupled to one side of the plurality of sticks 110, 120, And a support assembly 180 coupled to the other side of the plurality of sticks 110, 120 and 130.

Define the direction. A portion where the handle 150 gripped by the user is provided is referred to as an upper portion of the safety stick 10 and a portion where the support assembly 180 supported on the ground is provided is referred to as a safety stick 10). Therefore, it is understood that the handle 150 is provided on the upper side of the plurality of sticks 110, 120 and 130, and the support frame assembly 180 is provided below the plurality of sticks 110, 120 and 130.

When the plurality of sticks 110, 120, and 130 are erected, the lateral direction may be referred to as a lateral direction.

The plurality of sticks 110, 120 and 130 include an upper stick 110, a central stick 120, and a lower stick 130. The upper stick 110 is coupled to the handle 150 and the lower stick 130 is coupled to the support assembly 180. The central stick 120 may be coupled between the upper stick 110 and the lower stick 130.

The upper stick 110, the central stick 120, and the lower stick 130 may have a polygonal outer surface. For example, the shape of the polygon may include a hexagon. In this case, the upper stick 110, the central stick 120, and the lower stick 130 may be referred to as a "hexagonal stick ".

The left and right width D1 of the upper stick 110 may be greater than the left and right width D2 of the center stick 120. [ The left and right width D2 of the center stick 120 may be greater than the left and right width D3 of the bottom stick 130. [ Therefore, the center stick 120 can be inserted into the upper stick 110, and the lower stick 130 can be inserted into the center stick 120.

A first adjusting device 200a is provided between the upper stick 110 and the central stick 120 to fix the positions of the upper stick 110 and the central stick 120. [ A second adjusting device 200 may be provided between the central stick 120 and the lower stick 130. The first and second regulating devices 200a and 200b are identical to each other and the first regulating device 200a and the second regulating device 200b may be combined to form a regulating device 200 have.

The upper and lower lengths of the safety stick 10 can be adjusted using the adjusting device 200. When the adjusting device 200 is in the tightening position, the safety stick 10 is in a fixed state in which the vertical length can not be adjusted. On the other hand, when the adjusting device 200 is in the unlocking position, the safety stick 10 is in a state capable of adjusting the vertical length.

When the first adjusting device 200a is placed in the unlocking position, the center stick 120 is inserted into the upper stick 110 or the upper stick 110 is inserted into the upper stick 110, And a state capable of being pulled out to the outside. When the second adjusting device 200b is in the unlocking position, the lower stick 130 is inserted into the center stick 120 or the center stick 120 To be drawn out to the outside.

The central stick 120 and the lower stick 130 include fixing grooves 125 and 135 to which the regulating device 200 is coupled. The fixing grooves 125 and 135 may include a first fixing groove 125 formed in the center stick 120 and a second fixing groove 135 formed in the lower stick 130.

A plurality of the first fixing grooves 125 may be formed at corner portions which form the boundary of the outer surface of the polygon of the central stick 120 with respect to the vertical height of the central stick 120. For example, when the center stick 120 forms a hexagon, six first fixing grooves 125 may be formed. The plurality of first fixing grooves 125 may be formed to form a plurality of layers (stages) along the vertical height of the center stick 120.

Depending on the length of the central stick 120 inserted or drawn into the upper stick 110, the first adjustment device 200a may include six first fixed And may be fixed to the groove 125.

The second fixing groove 135 is formed at an edge of the lower stick 130 that forms a boundary of the outer surface of the polygon of the lower stick 130 with respect to the same height of the lower stick 130 in the vertical direction, A plurality of portions may be formed. For example, when the lower stick 130 is hexagonal, six of the second fixing grooves 135 may be formed. The plurality of second fixing grooves 135 may be formed to form a plurality of layers along the vertical height of the lower stick 130.

According to the length of the lower stick 130 inserted or drawn inward of the central stick 120, the second adjusting device 200b may include six second fixed And can be fixed to the groove 135.

The handle 150 is configured to have a cylindrical shape so that a user's hand can be gripped. A plurality of acupressure protrusions 152 protrude from the outer circumferential surface of the handle 150. The above-described acupressure projection 152 prevents the user's hand from slipping, and helps improve health.

A strap 160 for supporting a user's hand may be coupled to the handle 150. The strap 160 is connected to an upper portion of the handle 150 and extends downward. The strap 160 can be fixed to the lower portion of the handle 150 by an assembly bolt 165.

The strap 160 includes a tongue support portion 161 for supporting a part of the user's hand, that is, an abductor of little finger, and a cord 162 connected to the tongue support portion 161.

The hand supporting portion 161 is configured to cover a part of the hand of the user. The lower portion of the hand holding portion 161 may be fixed to the lower portion of the handle 150 by the assembly bolt 165.

The strap 162 may be supported by a strap support 155 provided on the upper portion of the handle 150. In detail, the strap 162 extends upward from the handgrip support 161 and may be arranged to wind at least a part of the strap support 155. The string 162 passing through the string support 155 may again extend downward.

The strap 160 further includes a strap adjuster 163 for adjusting the length of the strap 162. The string 162 extending downward through the string support 155 may be connected to the string adjuster 163. The configuration of the strap 162 and the strap adjuster 163 may be similar to that of a commonly used belt.

The width of the tongue support portion 161 may be larger than the width of the tongue 162. With this configuration, the hand supporting portion 161 can stably support the part of the hand of the user.

FIG. 4 is an exploded perspective view showing a configuration of the adjusting device according to the first embodiment of the present invention, FIG. 5 is a sectional view taken along line V-V 'of FIG. 3, FIG.

4 to 6, the adjustment device 200 according to the first embodiment of the present invention is configured to adjust the relative positions of the upper stick 110 and the center stick 120, So that the relative position of the lower stick 130 can be adjusted. The upper and lower lengths of the entire safety stick 10 can be adjusted by the tightening or loosening action.

The adjusting device 200 includes a rotatable fastener 210 and a fixed socket 230 inserted into the fastener 210 and disposed at a fixed position. By the rotation of the fastener 210, the fastener 210 can be moved upward or downward from the outside of the fixed socket 230.

Specifically, the fastener 210 includes a fastening body 211 having a hollow cylindrical shape. The fastening main body 211 includes an opened first upper opening 212 and an opened first lower opening 213.

The upper and lower portions of the fastening body 211 are configured to pass through the first upper opening 212 and the first lower opening 213. The first upper opening 212 and the first lower opening 213 The inner space of the fastening body 211 is formed. The fixing socket 230 may be inserted into the inner space of the fastening body 211.

A first screw thread 215 is formed on the inner circumferential surface of the fastening body 211 to be threadably engaged with the fastening socket 230.

The fixed socket 230 includes a socket body 231 having a hollow cylindrical shape. The socket body 231 includes an opened second upper opening 232 and an opened second lower opening 233. [

The upper and lower portions of the socket body 231 are configured to pass through the second upper opening 232 and the second lower opening 233 and the second upper opening 232 and the first lower opening 233 The inner space of the socket body 231 is formed.

The plurality of sticks 110, 120, and 130 may be inserted into the inner space of the socket body 231. In detail, the upper stick 110 and the center stick 120 may be inserted into the inner space of the socket body 231 of the first adjusting device 200a. The central stick 120 may be inserted into the upper stick 110.

The central stick 120 and the lower stick 130 may be inserted into the inner space of the socket body 231 of the second adjusting device 200b. The lower stick 130 may be inserted into the center stick 120.

In the lower portion of the socket body 231, a plurality of cutouts 236 are formed. The plurality of cutouts 236 may be configured such that at least a portion of the socket body 231 is cut and extended in the vertical direction.

The plurality of cutouts 236 may be spaced apart from one another and arranged in the circumferential direction of the socket body 231. By the configuration of the plurality of cut-outs 236, the socket body 231 can be deformed such that it is widened outward or wedged inward. Therefore, the plurality of sticks 110, 120, and 130 can be easily inserted into the fixed socket 230.

A second screw thread 235 is formed on the upper portion of the socket body 231. The second thread 235 may be interlocked with the first thread 215 of the fastener 210. By the interlocking of the first and second threads 215 and 235, the fastener 210 can be moved to a release position or a fastening position.

For example, when the fastener 210 is rotated in the clockwise direction, the fastener 210 can move to the tightening position by interlocking the first and second threads 215 and 235. In this process, the fastener 210 can move downward.

On the other hand, when the fastener 210 is rotated in the counterclockwise direction, the fastener 210 can move to the unlocking position by interlocking the first and second threads 215 and 235. In this process, the fastener 210 can be moved upward.

The socket body 231 further includes fixing projections 237 for holding the plurality of sticks 110, 120 and 130 in a fixed position at a lower end thereof. The fixing protrusion 237 may be inserted into the first fixing groove 125 or the second fixing groove 135. The fixing protrusions 237 may be provided in a number corresponding to the number of the plurality of fixing grooves 125, 135 formed in each layer (end) of the sticks 120, 130.

More specifically, in the first adjusting device 200a, when the upper fixing protrusion 237 is inserted into the first fixing groove 125, the upper stick 110 and the central stick 120 are restricted in relative position change . That is, the operation of inserting the center stick 120 into the upper stick 110 or pulling it out may be limited.

When the upper fixing protrusion 237 is inserted into the second fixing groove 135 in the second adjusting device 200b, the center stick 120 and the lower stick 130 are prevented from being shifted relative to each other. . That is, the operation of inserting the lower stick 130 into the central stick 120 or pulling it out may be limited.

The fixing protrusion 237 may be configured to have a rounded outer surface. For example, the fixing protrusions 237 are configured to have a spherical shape. Correspondingly, the first fixing groove 125 or the second fixing groove 135 may be configured to be recessed in an approximately hemispherical shape. According to this configuration, when the fastener 210 is in the unlocking position, when the plurality of sticks 110, 120, and 130 apply a predetermined force to change their relative positions, the fixing protrusions 237 are inserted into the first fixing grooves 125 ) Or the second securing groove 135. [0051] As shown in FIG.

The inner surface of the socket body 231 is provided with a locking protrusion 238 for locking the upper stick 110 or the central stick 120. The locking protrusion 238 may be disposed to support the end of the upper stick 110 or the end of the center stick 120.

More specifically, the locking protrusion 238 of the fixing socket 230 of the first adjusting device 200a is engaged with the end of the upper stick 110. Therefore, the upper stick 110 may be further prevented from being inserted into the lower side of the locking protrusion 238 in the fixing socket 230.

The locking protrusion 238 of the fixing socket 230 provided in the second adjusting device 200b is engaged with the end of the center stick 120. Therefore, the central stick 120 can be further prevented from being inserted into the fixing socket 230 downwardly of the locking protrusion 238.

When the fastener 210 is moved to the tightening position, the lower portion of the fastener 210 can press the fixing protrusion 237. In detail, an inclined portion 213a capable of pressing the fixing protrusion 237 is included in the lower portion of the fastener 210. The inclined portion 213a may be inclined from the lower end of the fastener 210 toward the upper side of the fastener 210. The inclined angle of the inclined portion 213a may be larger than 0 degrees and smaller than 90 degrees with respect to the vertical direction.

The operation of the adjusting device 200 will be briefly described with reference to Figs. 5 and 6. Fig.

First, when the fastener 210 is in the unthreaded position, the first thread 215 of the fastener 210 may be connected to the upper portion of the second thread 235 of the fastener socket 230. The lower portion of the fastener 210, that is, the inclined portion 213a may be positioned in a state of not pressing the fixing protrusion 237, that is, on the upper side of the fixing protrusion 237. [

When the fastener 210 is in the unlocking position, the relative positions of the plurality of sticks 110, 120, and 130 can be changed. For example, the center stick 120 may be inserted inside the upper stick 110 or out of the upper stick 110, inside the fixed socket 230. The lower stick 130 may be inserted to the inside of the fixed socket 230 or to the outside of the central stick 120. The vertical length of the safety stick 10 can be adjusted by the movement of the plurality of sticks 110, 120, and 130.

Meanwhile, since the plurality of cutouts 236 are formed in the fixed socket 230, the fixed socket 230 can be elastically deformed when the plurality of sticks 110, 120, and 130 move. The fixing protrusion 237 of the fixing socket 230 may be slid along the outer circumferential surface of the center stick 120 or the outer circumferential surface of the lower stick 130.

When the user adjusts the positions of the plurality of sticks 110, 120, and 130, multi-step adjustment is possible. The multi-step adjustment means that the length can be adjusted according to a plurality of vertically arranged layers (stages) formed by the first and second fixing grooves 125 and 135. That is, the user can adjust the length while moving the stick by the distance between the first and second fixing grooves 125 and 135 spaced apart from each other in the vertical direction.

After the user performs the relative position adjustment of the plurality of sticks 110, 1201 and 130, that is, the adjustment of the length of the safety stick 10, the fastening 210 is changed from the unlocking position to the tightening position . To this end, the user may rotate the fastener 210 in a clockwise direction, and the first thread 215 of the fastener 210 is interlocked with the second thread 235 of the fastener socket 230.

The fastener 210 is moved downward by the interlocking of the first and second threads 215 and 235 and the lower portion of the fastener 210 is brought close to the fixing protrusion 237 of the fixing socket 230. When the lower portion of the fastener 210 reaches the fixing protrusion 237, the inclined portion 213a presses the fixing protrusion 237 so that the fixing protrusion 237 contacts the first fixing groove 125 Or may be inserted into the second fixing groove 135.

The fixing protrusion 237 may be inserted into the first fixing groove 125 or the second fixing groove 135 by a pressing force transmitted from the fastener 210. In this state, it is limited to adjust the positions of the plurality of sticks 110, 120, and 130 in the vertical direction. Thus, the user can securely walk by using the safety stick 10 firmly fixed.

8 is a cross-sectional view taken along the line VIII-VIII 'of FIG. 3, and FIG. 9 is a cross-sectional view taken along line VIII-VIII' of FIG. 3. FIG. 7 is a view showing a state where the support rod assembly and the lower stick according to the first embodiment of the present invention are combined, Sectional view showing a compressed state of the spring when a load acts on the support assembly according to the embodiment.

7 to 9, the safety stick 10 according to the first embodiment of the present invention includes a support assembly 180 which is coupled to the lower side of the lower stick 130 and can be supported on the ground .

The support assembly 180 includes a stick connection part 181 coupled to a lower portion of the lower stick 130 and provided with a spring 188 and a support part 190 coupled to a lower side of the stick connection part 181 and supported on the ground ). For example, the stick connection 181 may be made of engineering plastic (PEEK), and the support 190 may be made of tungsten.

In detail, the stick connection part 181 includes a connection body 182 coupled to the lower stick 130 and having upper and lower portions penetrated. The connection part body 182 includes an inner space into which the lower stick 130 and the support part 190 are inserted.

The inner space includes a stick inserting portion 183 which forms an upper portion of the inner space and into which the lower stick 130 is inserted. The stick inserting portion 183 is recessed downward from the upper surface of the connecting portion main body 182 and extends in the vertical direction.

The inner space includes a support base insertion portion 184 which forms a lower portion of the inner space and into which the support base 190 is inserted. The supporter insertion portion 184 is recessed upward from the lower surface of the connection portion main body 182 and extends in the vertical direction. In addition, the supporter insertion portion 184 may communicate with the stick insertion portion 183.

The inner diameter of the stick insertion portion 183 may be larger than the inner diameter of the support insertion portion 184. The connecting portion main body 182 is formed with a step portion 183 extending from the stick inserting portion 183 to the supporter inserting portion 184 and defining a step between the stick inserting portion 183 and the supporter inserting portion 184, (184a). The step 184a extends in the transverse direction.

A spring 188 may be provided in the inner space of the connection body 182 to apply an elastic force to the lower stick 130. The spring 188 is seated on the step 184a and may extend upward from the step 184a. In one example, the spring 188 may include a compression spring.

On the upper side of the spring 188, the lower stick 130 can be supported. That is, the spring 188 may be positioned between the lower stick 130 and the step 184a. The spring 188 is compressed when the lower stick 130 presses the spring 188 in a walking process using the safety stick 10 and the spring 188 is tensioned by the restoring force when the pressing force is removed .

The support base 190 is provided with a support base body 191 disposed on the lower side of the stick connection portion 181 and placed on the ground and a support base body 193 extending upward from the support base body 191 and inserted into the support base insertion portion 184 Spring support 193 is included. The spring support 193 may be inserted into the spring 188 to support the spring 188.

The support assembly 180 further includes a fixing pin 186 fixed to the stick connection 181. The connecting portion body 182 is formed with a pin insertion portion 185 into which the fixing pin 186 is inserted. For example, the fixing pin 186 may be coupled through the connecting body 182.

The lower stick 130 is formed with a pin guide hole 132 into which the fixing pin 186 is inserted. The fixing pin 186 is coupled to the pin insertion portion 185 to extend into the connection portion main body 182 and can penetrate the pin guide hole 132.

The pin guide hole 132 may extend in the vertical direction. The fixing pin 186 may perform relative movement within the pin guide hole 132. Actually, the fixing pin 186 is disposed at a fixed position, and the pin guide hole 132 can move up and down together with the lower stick 130.

The upper and lower ends of the pin guide hole 132 may be rounded to correspond to the outer shape of the fixing pin 186. When a downward load is applied to the lower stick 130, the pin guide hole 132 moves downward. At this time, the upper end of the pin guide hole 132 may interfere with the fixing pin 186 (See FIG. 9).

On the other hand, when the downward load is released from the lower stick 130, the pin guide hole 132 is moved upward by the restoring force of the spring 188, May interfere with the fixing pin 186 (see FIG. 8).

That is, the upper and lower ends of the pin guide hole 132 serve as stoppers for restricting further movement of the lower stick 130 in the upward and downward directions.

On the other hand, the spring support 193 can act as a stopper for limiting the maximum movement distance with respect to the lower stick 130. Even if the lower stick 130 or the spring 188 breaks due to an unexpected reason and the lower stick 130 is moved downward beyond a predetermined distance during use of the safety stick 130, Can support the lower stick 130. Therefore, the risk of a safety accident can be prevented.

Hereinafter, a second embodiment of the present invention will be described. Since the present embodiment differs from the first embodiment only in the shape of the stick and the fixing groove, the differences will be mainly described, and the description and the reference numerals of the first embodiment are used for the same portions as those in the first embodiment.

10 is a perspective view showing a configuration of a safety stick according to a second embodiment of the present invention.

Referring to FIG. 10, the safety stick 10a according to the second embodiment of the present invention includes a plurality of sticks 110a, 120a, and 130a having a cylindrical shape.

The plurality of sticks 110a, 120a and 130a include an upper stick 110a, a center stick 120a, and a lower stick 130a. The central stick 120a and the lower stick 130a include a plurality of fixing grooves 125a and 135a which are engaged with the regulating device 200. [

The plurality of fixing grooves 125a and 135a includes a first fixing groove 125a formed in the center stick 120a and a second fixing groove 135a formed in the lower stick 130a.

The first fixing groove 125a has a shape recessed in the circumferential direction of the central stick 120a and the second fixing groove 135a has a shape that is recessed in the circumferential direction of the lower stick 130a have.

With respect to the configuration of the adjusting device 200, the description of the first embodiment is used. That is, the fixing socket 230 of the controller 200 may be provided with a fixing protrusion 237. The fixing protrusion 237 may be inserted into the first fixing groove 125a or the second fixing groove 135a.

That is, since a plurality of fixing protrusions 237 are provided in the lower portion of the fixing socket 230, the fixing protrusions 237 can be inserted into the first and second fixing grooves 125a and 135a, The fixing protrusions 237 may be fixed to the first and second fixing portions 120a and 130a even if the first and second fixing grooves 125a and 135a are arranged in the circumferential direction of the sticks 120a and 130a. It is easily inserted into the grooves 125a and 135a to effectively fix the plurality of sticks 110a, 120a and 130a.

Other embodiments are suggested.

In the above embodiments, it has been described that the fastener is moved downward to the tightening position and the fastener presses the fixing protrusion of the fixing socket. Then, the fastener is moved upward to the unlocking position, and the fastener is released from pressing the fixing protrusion of the fixing socket.

Alternatively, however, the fastener may be moved upwardly into the tightening position and the hammer may be configured to press the locking protrusion of the stationary socket. In this case, the fixing protrusion may be provided on the fixing socket. And, if the fastener descends downward, it can be moved to the unlocking position.

10: safety stick 110: upper stick
120: center stick 130: bottom stick
150: Handle 160: Strap
180: Support assembly 181: Stick connection
186: Fixing pin 188: Spring
190: support 200: regulating device
210: Fastening 215: First thread
230: Fixed socket 235: Second thread
237: Fixing projection 238:

Claims (7)

A plurality of sticks extending in the vertical direction and having an outer peripheral surface on which the fixing grooves are formed;
A regulating device provided between the plurality of sticks and rotatably provided;
A handle provided on the plurality of sticks and having a strap; And
And a support assembly provided under the plurality of sticks and provided with a spring,
Wherein the adjusting device comprises: a fixed socket having a locking protrusion fixed to the one of the plurality of the sticks, and the one stick and the stick being inserted; And a fastener coupled to an outer side of the fixed socket and being vertically moved to a tightening position or a loosening position according to a rotation operation,
The fastener includes a fastener body having an open first upper opening and an open first lower opening; And a first screw thread formed on an inner circumferential surface of the fastening body,
The fixed socket includes a socket body having an opened second upper opening and an opened second lower opening; A second screw thread provided on an outer circumferential surface of the socket body and cooperating with the first screw thread; A plurality of cutouts formed in the socket body; And a fixing protrusion provided on the plurality of cutouts and coupled to the fixing groove.
A safety stick for the disabled and the disabled who are not walking. delete delete The method according to claim 1,
The plurality of sticks include an upper stick, a center stick, and a lower stick,
In the regulating device,
A first adjusting device for adjusting a relative position of the upper stick and the center stick; And
And a second adjusting device for adjusting a relative position of the center stick and the bottom stick,
A safety stick for the disabled and the disabled who are not walking. 5. The method of claim 4,
In the support assembly,
A stick connection part coupled to a lower side of the lower stick and having a stick insertion part on which the spring is installed; And
And a support member coupled to the lower end of the stick connection portion and inserted into the support member insertion portion of the stick connection portion,
Wherein the stick inserting portion and the supporter inserting portion communicate with each other, and the inner diameter of the stick inserting portion is formed to be larger than the inner diameter of the supporter inserting portion,
A safety stick for the disabled and the disabled who are not walking. 6. The method of claim 5,
A pin guide hole formed in the lower stick and extending in a vertical direction; And
Further comprising a fixing pin provided on the stick connection portion and inserted into the pin guide hole,
When the lower stick is moved downward,
Characterized in that the spring performs a compression deformation and the pin is interfered with the upper end of the pin guide hole.
A safety stick for the disabled and the disabled who are not walking. The method according to claim 1,
In the strap,
A palm rest supporting the palm of the user;
A strap connected to the handgrip support and supported on an upper portion of the handle; And
And an assembly bolt for detachably coupling the lower portion of the hand-held support portion to the handle,
Characterized in that the strap is adjustable in length,
A safety stick for the disabled and the disabled who are not walking.

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