KR101733420B1

KR101733420B1 - crutches

Info

Publication number: KR101733420B1
Application number: KR1020150137359A
Authority: KR
Inventors: 김학수
Original assignee: 주식회사 삼부메디칼
Priority date: 2015-09-30
Filing date: 2015-09-30
Publication date: 2017-05-08
Also published as: CN206443884U; KR20170038257A

Abstract

A length adjusting rod 3 is inserted between both body rods 1 and a lower rod 7 is inserted into the hollow length adjusting rod 5 so as to be adjustable in length by a length adjusting means 6, A coupling means for coupling the body rod 1 and the length adjusting rod 3 and a shock absorbing means for coupling to the lower portion of the lower rod 7, And a joint lower body (30), and the shock absorbing means is a resin material shock absorbing tip (40); The coupling spherical body 10 is formed between two body rod insertion ports 11a into which the lower ends of the body rods 1 formed on both sides are inserted and between the body rod insertion ports 11a, A lower end of which is connected to the control rod insertion port 11b and which is formed at a lower portion of the coupling body body portion 11 to form a length control rod insertion hole 11b into which the lower end is inserted and supported, And a hollow upper body coupling portion (15) forming an insertion hole and having a first spiral portion (15a) formed on the outer peripheral surface thereof; A pressing means 20 having a first inclined portion 21 formed downward at a uniform interval with an incision 20a interposed therebetween along the outer peripheral surface of the lower end portion of the upper body engaging portion 15 and tapering downward, Are integrally formed; The lower hollow member 30 has a second spiral portion 31 corresponding to the first spiral portion 15a on the inner circumferential surface thereof and a second spiral portion 31 corresponding to the first slope portion 21 A second pressing portion 35 for pressing the second pressing portion 35 is formed; The second pressing portion 35 of the lower half body 30 of the coupling member 30 is rotated in the process of coupling the second helical portion 31 of the lower half body 30 to the upper body coupling portion 15 and the first helical portion 15a, ) Presses the first inclined portion 21 of the pressing means 20 so that the inner surface of the first inclined portion 21 presses the outer peripheral surface of the lower end bar 7 against the contact surface, The bottom rod 7 is integrally coupled to the coupling member 1 and the length adjusting rod 3 and the vibration of the bottom rod 7 is attenuated by the pressing means 20; And a resin material impact absorbing tip (40) of a plastic resin material is coupled to the lower end of the lower rod (7).

Description

Crutches with shock absorbing function.

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to crutches equipped with a shock absorbing function.

Japanese Patent Application No. 10-1198247 discloses a shock absorbing crutch tip having an upper member detachably provided at the lower portion of the foot; A connecting member extending from the lower end of the upper member and having a cross section narrower than that of the upper member; A lower member extending from the lower end of the connecting member and having a larger cross section than that of the connecting member and protruding forwardly; And a ring-shaped insertion member inserted into the outer circumferential surface of the connecting member.

A crutch is a crutch which has a fastening portion coupled to an upper portion of a main shock absorbing crutch and a lower portion of a main pipe and a supporting body contacting the ground. The crutch includes an impact transmitted to the armpit when the crutch is struck A fixing pipe formed with a socket fixedly coupled to a lower portion of the fixing portion for buffering the fixing portion, a fixing member formed with an insertion portion fixedly coupled to the inside of the socket, a fixing pipe fixed to the insertion portion of the fixing member so as to be vertically movable, A pin inserted into a pin hole of an insertion portion which is coincident with a notch of a fixing pipe in order to prevent the inserted portion of the fixed body coupled with the fixing pipe from being rotated, A main tube to be fixedly coupled to the outer circumferential surface of the fixing tube, and a coupling portion between the fixing tube and the insertion portion In order to conceal from exposure portion and the shock absorption post crutch, it characterized in that it includes an extension portion, and the insert ring being fixedly coupled to the extended portion formed at the lower outer periphery of the socket.

The present invention can strengthen the coupling between the length control rod and the lower rod of crutches and reduce the impact noise by absorbing the vibration of the length adjusting rod and the lower rod coupling occurring at the time of straddling, The present invention is to provide crutches equipped with a shock absorbing function capable of reducing the occurrence of vibration of rods constituting crutches in advance in advance.

The crutches provided with the shock absorbing function of the present invention are characterized in that the length control rods 3 are coupled between the body rods 1 and the lower rods 7 are connected to the length control rods 5 6, a coupling means for coupling the body rod 1 and the length adjusting rod 3, and a shock absorbing means for coupling to the lower portion of the lower rod 7, As a result,
The coupling means is composed of a coupling spherical body (10) and a coupling lower body (30), and the shock absorbing means is a resin material shock absorbing tip (40);
The coupling spheres (10)
A body bar insertion port 11a formed at both sides of the body bar 1 for receiving the lower end of the body bar 1 and a length adjusting rod 12 formed between the body bar insertion port 11a and the lower end of the length adjusting rod 3 being inserted and supported A coupling spherical body portion 11 forming an insertion hole 11b,

And a hollow upper body coupling portion 15 formed at a lower portion of the coupling body 11 and forming an insertion hole communicating with the control rod insertion hole 11b and having a first spiral portion 15a formed on the outer peripheral surface thereof ;

The first to-be-urged portion 20 is formed along the outer peripheral surface of the lower end of the upper body engaging portion 15, and the to-be-urged portion 20 is downwardly disposed at a uniform interval with the axial cut- And a plurality of first inclined separating pieces 21 that are tapered toward the bottom,

The second spiral portion 31 corresponding to the first spiral portion 15a is formed on the inner peripheral surface of the hollow lower coupling member 30,
A second pressing means 35 is formed below the second spiral portion 31 and the second pressing means 35 is formed on the inner circumferential surface of the coupling lower body 30 in such a manner that the first inclined separating piece 21, And the second pressing slope 35-1 is constituted by the second pressing slope 35-1 so as to continuously form a closed cylindrical slope without the axial slitting grooves ;

The second threaded portion 31 of the lower joint body 30 and the upper threaded portion 15 and the first threaded portion 15a are engaged with each other, The second pressing means 35 having the inclined surface 35-1 presses the inclined outer surfaces of the first inclined separating pieces 21 of the first to-be-pressed means 20,

The inner surface 21b of the first oblique incised separating pieces 21 presses the outer circumferential surface of the lower end bar 7 against the contact surface so that the lower end bar 7 are integrally joined and the vibration of the lower end bar 7 is attenuated by the first oblique incision pieces 21 and the inner surface 21b of the first oblique incision piece 21 is joined to the lower end bar 7 So as to be in contact with the lower bar 7 and to become thicker as it goes to the upper part, a step 21c is formed on the upper part,
And a resin material shock absorbing tip 40 made of a plastic resin material is coupled to the lower end of the lower rod 7.

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According to the present invention, it is possible to strengthen the coupling between the length-adjusting rods and the lower rods of the crutches and reduce the impact noise by absorbing the vibrations of the length-adjusting rods and the lower rods combined at the time of stitching. A crutch provided with a shock absorbing function capable of reducing the occurrence of vibration of the rods constituting the crutches in advance in advance.

Brief Description of the Drawings Fig. 1 is an overall view of a crutch having a shock absorbing function according to an embodiment of the present invention; Fig.
2 is a detailed view of a length adjusting rod and a lower rod connecting part according to an embodiment of the present invention;
FIG. 3 is an exploded perspective view of a length adjusting rod and a lower rod fitting according to an embodiment of the present invention; FIG.
FIG. 4 is a cross-sectional view of a length adjusting rod and a lower rod connecting portion according to an embodiment of the present invention; FIG.
FIGS. 5 (a), (b) and (c) are external views, sectional views, and use state views of a tip of a resin material shock absorbing tip in a lower rod according to an embodiment of the present invention.

Hereinafter, a crutch provided with a shock absorbing function according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. 2 is a detailed view of a length adjusting rod and a lower rod connecting portion according to an embodiment of the present invention, and FIG. 3 is a cross- FIG. 4 is a sectional view of a length adjusting rod and a lower rod connecting part according to an embodiment of the present invention, and FIGS. 5 (a), (b) and (c) Sectional view and a state of use of the resin material shock-absorbing tip in the lower rod according to one embodiment of the present invention.

1 to 5, a crutch having a shock absorbing function according to an embodiment of the present invention includes a length control rod 3 coupled between both body rods 1, A lower rod 7 is inserted into the adjusting rod 5 so as to be adjustable in length by means of the length adjusting means 6 and a coupling means for coupling the body rod 1 and the length adjusting rod 3, And a shock absorbing means for engaging with a lower portion of the crankshaft (7).

1 to 5, in the crutches provided with the shock absorbing function according to the embodiment of the present invention, the engaging means is composed of the joint spherical body 10 and the joint lower body 30, The shock absorbing means is a resin material shock absorbing tip (40).

As shown in FIGS. 1 to 5, the coupling spherical body 10 includes two body rod insertion ports 11a formed at both sides of the lower end of the body rod 1, And a length adjusting rod insertion hole 11b formed in the lower end of the length adjusting rod 3 and inserted into and supported by the lower end of the length adjusting rod 3, And a hollow upper body coupling portion 15 which forms an insertion hole communicating with the control rod insertion port 11b and has a first helical portion 15a formed on the outer circumferential surface thereof.

1 to 5, a first pressure-applying means 20 is formed along the outer peripheral surface of the lower end of the upper body engaging portion 15, and the pressure-applying means 20 includes an axial incision 20a And a plurality of first inclined separating pieces 21 formed downward at uniform intervals and tapering downward at the bottom.

A second spiral portion 31 corresponding to the first spiral portion 15a is formed on the inner circumferential surface of the lower hollow coupling member 30 and a second pressing means portion The second pressing means 35 is formed on the inner circumferential surface of the lower fitting body 30 so as to press the inclined outer surfaces of the first inclined separating pieces 21 downward, 2 pressurized slant surface 35-1 and the second pressurized slant surface 35-1 forms a continuously closed circumferential slant surface without axial incision grooves.

In the course of the engagement of the second helical part 31 of the lower half body 30 and the upper half 15 and the first helical part 15a of the lower half body 30, The second pressing means 35 having the first inclined separating pieces 35-1 presses the inclined outer surfaces of the first inclined separating pieces 21 of the first pressed portion 20. The inner surface 21b of the first oblique interdigital piece 21 presses the outer peripheral surface of the lower end bar 7 against the contact surface so that the lower end bar 7 is attached to the coupling means, the body rod 1, And the inner surface 21b of the first inclined separating piece 21 is joined to the lower end of the lower end of the lower end bar 7 by the first inclined separating pieces 21, So that it is in a planar shape parallel to the outer surface so as to be in contact with the lower bar 7 and thicker toward the upper part, and a step 21c is formed on the upper part. A resin material impact absorbing tip 40 made of a plastic resin material is bonded to the lower end of the lower rod 7.

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5 (a) and 5 (b), the impact absorbing tip 40 includes an upper hollow rod insertion portion 41, an intermediate connection portion 43 integrally formed at the lower portion of the rod insertion portion 41, And a flexible shock absorbing part 45 integrally joined to the lower part of the intermediate connecting part 43 and partially folded. The bottom end step surface 41a is formed at the lower part of the rod insertion part 41 to support the end of the lower end bar 7. The intermediate connecting portion 43 is formed on its outer surface with a concave portion 43b and a convex portion 43a alternately.

5A and 5B, the flexible shock absorbing portion 45 includes an inclined inner surface portion 45a-2 that forms the inner hollow portion 45a-2 so that a part of the flexible shock absorbing portion 45 is folded and folded when the tilted- -1), a deep projection 45b protruding from the bottom of the deep portion of the intermediate connection 43, and a protruding portion 45b protruding from the deep projection 45b in such a manner as to surround the flexible projecting portion 45a, And an intermediate support ring portion 45c that is not exposed to the lower end of the flexible skirt portion 45a and protrudes further downward than the deep portion 45b.

As shown in Figs. 5 (a) and 5 (b), the intermediate connecting portion 43 between the bottom end guiding surface 41a and the flexible impact absorbing portion 45 is hollow and the metal reinforcing ring 47 is inserted into the hollow- So that the shock absorbing tip 40 is protected from being torn by the load.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but on the contrary, &Lt; RTI ID = 0.0 > and / or < / RTI >

It should be noted that the reference numerals in the following claims for utility model registration are merely intended to assist the understanding of the invention and do not affect the interpretation of the scope of rights, and the scope of the right should not be construed narrowly by the reference numerals described.

1: Both body rods 3: Adjustable rods
5: length adjusting rod 7: bottom rod
10: joint spherical body 11a: body rod insertion hole
11b: adjusting rod insertion port 15: upper body coupling portion
15a: first spiral part 20: pressing part
20a: incision part 21: first inclined part
30: coupling member lower body 35: second pressing portion
40: Shock Absorber Tip

Claims

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A length adjusting rod 3 is coupled between both body rods 1 and a lower rod 7 is inserted into the hollow length adjusting rod 5 so as to be adjustable in length by the length adjusting means 6,
A coupling means for coupling the body rod 1 and the length adjusting rod 3 and a shock absorbing means for coupling to the lower portion of the lower rod 7,
The coupling means is composed of a coupling spherical body (10) and a coupling lower body (30), and the shock absorbing means is a resin material shock absorbing tip (40);
The coupling spheres (10)
A body bar insertion port 11a formed at both sides of the body bar 1 for receiving the lower end of the body bar 1 and a length adjusting rod 12 formed between the body bar insertion port 11a and the lower end of the length adjusting rod 3 being inserted and supported A coupling spherical body portion 11 forming an insertion hole 11b,

And a hollow upper body coupling portion 15 formed at a lower portion of the coupling body 11 and forming an insertion hole communicating with the control rod insertion hole 11b and having a first spiral portion 15a formed on the outer peripheral surface thereof ;

The first to-be-urged portion 20 is formed below the first spiral portion 15a along the outer peripheral surface of the lower end portion of the upper body coupling portion 15. The to-be-urged portion 20 includes an axial cut- A plurality of first inclined separating pieces 21 formed downward at uniform intervals with a space therebetween and being tapered downward at the bottom,

The second spiral portion 31 corresponding to the first spiral portion 15a is formed on the inner peripheral surface of the hollow lower coupling member 30,
A second pressing means 35 is formed below the second spiral portion 31 and the second pressing means 35 is formed on the inner circumferential surface of the coupling lower body 30 in such a manner that the first inclined separating piece 21, And the second pressing slope 35-1 is constituted by the second pressing slope 35-1 so as to continuously form a closed cylindrical slope without the axial slitting grooves ;

The second threaded portion 31 of the lower joint body 30 and the upper threaded portion 15 and the first threaded portion 15a are engaged with each other, The second pressing means 35 having the inclined surface 35-1 presses the inclined outer surfaces of the first inclined separating pieces 21 of the first to-be-pressed means 20,

The inner surface 21b of the first oblique incised separating pieces 21 presses the outer circumferential surface of the lower end bar 7 against the contact surface so that the lower end bar 7 are integrally joined and the vibration of the lower end bar 7 is attenuated by the first oblique incision pieces 21 and the inner surface 21b of the first oblique incision piece 21 is joined to the lower end bar 7 So as to be in contact with the lower bar 7 and to become thicker as it goes to the upper part, a step 21c is formed on the upper part,

A resin material shock absorbing tip 40 of a plastic resin material is coupled to the lower end of the lower rod 7,

The shock absorbing tip 40 includes an upper hollow rod insertion portion 41, an intermediate connection portion 43 integrally formed at the lower portion of the rod insertion portion 41, And a flexible shock absorbing portion 45 which is joined and partially folded,

The bottom end stepped surface 41a is formed at the lower portion of the rod insertion part 41 to support the end of the lower end rod 7;
The intermediate connection portion 43 is formed with a recess 43b and a protrusion 43a alternately on the outer surface thereof,
The flexible shock absorbing part (45)
An outer flexible skirt portion 45a having an inclined inner surface portion 45a-1 forming an inner hollow portion 45a-2 so as to be partially folded and folded when being grounded obliquely to the ground,
A deep protrusion 45b protruding from the bottom of the deep portion of the intermediate connection part 43,
An intermediate support ring portion 45c protruding from the deep protruding portion 45b and protruding from the lower end of the flexible skirt portion 45a and projecting further below the deep protruding portion 45b,
And,

The intermediate connecting portion 43 between the bottom end guiding surface 41a and the flexible impact absorbing portion 45 is hollow and the metal reinforcing ring 47 is inserted into the hollow core portion so that the impact absorbing tip 40 is torn Wherein the crutches have a shock-absorbing function.