CN2889260Y

CN2889260Y - Combined under-armpit crutch

Info

Publication number: CN2889260Y
Application number: CN 200620006686
Authority: CN
Inventors: 翁宽仁
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-31
Filing date: 2006-03-31
Publication date: 2007-04-18
Anticipated expiration: 2016-03-31

Abstract

The utility model relates to a combined type axillary crutch, which comprises two oppositely-arranged pipe supporters, a shoulder holder disposed at the top of each pipe supporter to provide axillary support, a stretchable foot pipe part disposed at the bottom of each pipe supporter and used to regulate the height, a handle bar disposed between these two pipe supporters and adapted to be gripped by hands of a user, embedded slide chutes provided in the opposite interior sides of these two pipe supporters, and a plurality of tapered positioning holes disposed at the bottom of the chutes. The handle bar mainly includes a handle whose two ends are provided with end plugs adapted to slide inside the embedded slide chutes in these two pipe supporters, protrusions disposed in the extension portion from the end plug and engaged with the positioning holes, and a shaft passed inside the handle and having recesses at its two ends. The shaft end passes through the end plug and enters into the positioning hole. When the handle slides downward, the recess of the shaft moves to be locked in the narrower part of the positioning hole and the protrusion of the end plug is locked in the below-adjacent positioning hole, so that the handle bar is restricted to move and simultaneously these two pipe supporters are restricted to extend outward by the recessed of the shaft.

Description

Turn the combination type oxter

Technical field

This utility model is the handle locate mode that can adjust the position according to arm length set on the crutch, make on the pipe support and needn't be provided with the locating hole that runs through, make the structure of crutch more strong, and because of the combination of each assembly of crutch non-for spiral shell solid or rivet clasp mode, but finish combination between each assembly in more easy mode.

Background technology

Past, turned as US4 early stage oxter, 865,065, US4,852,597, RE32,815, US4,733,682, US4,509,741 etc., its structure roughly all includes two parallel relatively pipe supports, and this upper end to pipe support is the shoulder of holding up that is equiped with the oxter bracketing, and the centre is provided with handle, the lower end then is inwardly to contract to move and press from both sides establishes a middle pipe that offers a plurality of locating holes, and in middle pipe, wear the foot pipe that callosity is equipped with in a lower end, and in the foot pipe, be equiped with snap-on and in can being positioned on arbitrary locating hole of pipe, to reach the purpose of the scalable adjustment of length, be positioned at the locating hole that offers a plurality of correspondences on handle portion place's both sides pipe support simultaneously, and after penetrating and passed through lever again from the pipe support of a side by a screw rod, after passing from the pipe support of opposite side, lock with the butterfly winged nut, so, can adjust the gripping that handle portion is suitable for the different users as long as lever is worn on the locating hole that is fixed in the differing heights position.

But; in order to allow lever that the position can be adjusted two pipe support sides are offered a plurality of perforation that run through (locating hole); a little less than the structural strength at this place of pipe support being become be highly brittle; and handbar also bears the place of application of force maximum just; so regular meeting is because of the offering of perforation during crutch, causes to bear too big bracketing strength and bend even rupture.

In addition, above-mentioned this between pipe support lower end and the middle pipe, all be to wear rivet in conjunction with the three, so the combination between each assembly of crutch not only must expend outside more manpower makes up, and also will have more hardware (as rivet, blind rivet or screw) to come in conjunction with each assembly, simultaneously at each preceding assembly of forming crutch, as two pipe supports, middle pipe, foot pipe etc., all must be earlier through anodising (plating), make its surface aesthetic and wear-resisting and can prevent corrosion; But when carrying out anodising, each assembly that desire must be handled separately distinctly carries out just electroplating after the pickling, could answer so its step process is comparatively tired after electroplated is finished with each combination of components together, and is not only consuming time, also will waste more manpower.

In addition, also just like US6,314,977, US5,381,813, US5,299,589, US5,291, patents such as 910, made the change of different structure for the adjustment of handbar,, and improved the structural strength of pipe support though it allows the both sides pipe support of crutch that the perforation that runs through pipe support needn't be set, but complicated, fragile, the difficult increase that reaches on the cost of combination that the structure of this handbar becomes on the contrary, and when being damaged, handbar also is difficult to it is disassembled maintenance.

The utility model content

The purpose of this utility model provides a kind of combination type oxter and turns.

For achieving the above object, turn the combination type oxter that this utility model provides, comprise on the two relative pipe supports, the shoulder of holding up that the lower end respectively is equiped with the oxter bracketing reaches flexible foot tube part, and at the middle handle of locating to be equiped with the hand bracketing of two pipe supports, two pipe support opposed inside faces are provided with the embedding chute of outer narrow inner width, and the bottom land in both sides embedding chute offers corresponding locating hole wide at the top and narrow at the bottom, and the two ends of establishing a lever are arranged with the lever end plug that can embed and slide against the embedding chute, and this lever end plug is provided with extension, at the protuberance that is provided with on the extension corresponding to locating hole below adjacent, in lever, wear simultaneously the axostylus axostyle that two ends have groove, the two ends of axostylus axostyle are stretched in the locating hole after being passed by both sides lever end plug, lever moves down the groove that makes axostylus axostyle and buckles into the narrower place of locating hole width, and the protuberance of lever end plug extension also just in time embeds in the locating hole of adjacent below simultaneously.

Turn described combination type oxter, flexible foot tube part comprise between the relative pipe support folder establish one can for a foot pipe wear and localized in pipe, and middle pipe both sides are provided with the fitting portion that can cooperate with the embedding chute of pipe support, the lower end lateral surface of middle pipe embedded and slide part is provided with the outstanding catch that can supply the both sides pipe support to prop up, the end limit of the both sides, upper end of middle pipe is punched into the both sides pipe support and is embedded in, the integrated positioning in finishing between pipe and the both sides pipe support.

The design of the location structure of the handle of above-mentioned utility model is located on the crutch handle and outside can upper and lowerly not moving, and the both sides pipe support is also fastened by the groove of axostylus axostyle and can't expand outwardly and come.

Description of drawings

Fig. 1 is this novel schematic perspective view.

Fig. 2 is the decomposing schematic representation at this novel telescopic foot tube part place.

Fig. 3 is that this combines sketch map between pipe upper end and the pipe support in novel.

Fig. 4 is that this combines cutaway view between pipe and the both sides pipe support in novel.

Fig. 5 is the decomposing schematic representation of this novel grasp portion.

Fig. 6 is the cutaway view of this novel grasp portion.

Fig. 7 is snapped into the preceding sketch map of pipe support for this novel grasp portion.

Fig. 8 is the sketch map after this novel grasp portion is snapped into pipe support.

Fig. 9 is the adjustment sketch map of this novel grasp portion.

The sketch map that Figure 10 moves up and down for this novel grasp portion.

The specific embodiment

This utility model can be by the following example and conjunction with figs., obtain to understand fully, and implemented: please consult shown in Figure 1, this novel crutch comprises two relative pipe supports 1, and be equiped with in the upper end of pipe support 1 be available for users to that the oxter supports hold up shoulder 2, the lower end of pipe support 1 then is equiped with the flexible foot tube part 3 that is supported in ground, and place, the centre position between two pipe supports 1 is provided with the handle 4 that is available for users to hand grasping and support more simultaneously, wherein:

Two its opposed inside face places of relative pipe support 1---are provided with the embedding chute 11 of outer narrow inner width, and offer a plurality of locating holes wide at the top and narrow at the bottom 12 on embedding chute 11 bottom lands corresponding to handle 4 places.

Hold up shoulder 2---to comprise and be fixed in this bracket 21, and the sheathed oxter cushion 22 that is coated on the bracket 21, and this upper end side edema over the face to pipe support 1 is provided with raised face to pipe support 1 upper end, and can be by counter catching on when bracket 21 is packed into and fixing (not shown).

Flexible foot tube part 3---please cooperate Fig. 2,3 and shown in Figure 4, comprise that both sides can embed the middle pipe 31 in the embedding chute 11 of both sides pipe support 1, and pipe 31 both sides are provided with fitting portion 313 in the embedding chute 11 that can embed pipe support in the order, make can be firm two pipe supports 1 and middle pipe 31 threes, and on middle pipe 31, offer a plurality of locating holes 310, after the foot pipe 32 that can supply an end to be provided with callosity 34 is managed in 31 in penetrating, buckle in this locating hole 310 by snap-on set on the foot pipe 32 33, and reach the location of foot pipe 32 telescopic movings; The floating outstanding catch 311 that is provided with in the outside, the lower end of the fitting portion 313 of pipe simultaneously, make and to prop up for the end of both sides pipe support 1, the end limit 312 of the both sides, upper end of middle pipe 31 then is punched into the wall of both sides pipe support 1, after enabling to embed in the embedding chute 11 of pipe support 1 by middle pipe 31 both sides, again because of the location of catch 311 and end limit 312 pairs of pipe supports 1, and then pipe 31 can't be moved fully and is fixed between two pipe supports 1 in the order, modifies end face in two pipe supports 1 and the sheathed combined cover 35 in lower end and upper end plug one pipe close of middle pipe 31 more at last.

Handle 4---please cooperate Fig. 5, shown in 6, the two ends that comprise a lever 41 can be worn for the portion that fills in 420 of a pair of lever end plug 42 and be filled in, and sheathed proficiency is held cushion 44 outside lever 41, and order wears the axostylus axostyle 43 that two ends are provided with groove 431 in lever 41, make the two ends of axostylus axostyle 43 pass afterwards and stretch in the locating hole 12 of both sides pipe support 1 then by both sides lever end plug 42, simultaneously above-mentioned this is provided with inside and outside the embedding chute 11 that extension 421 can be arranged in pipe support 1 lever end plug 42, establish a protuberance 422 in the lower end side of extension 421 again, and then after the two ends of axostylus axostyle 43 are stretched in the locating hole 12 of both sides pipe support 1 (as shown in Figure 7), whole handle portion 4 is pushed downwards to be moved, and allowing the groove 431 at axostylus axostyle 43 two ends can embed the narrower place of width of locating hole 12 lower ends, the protuberance 422 of both sides lever end plug 42 also just in time buckles in the locating hole 12 of adjacent below (as shown in Figure 8) simultaneously.

Therefore, when desire is adjusted the position of handle portion, as shown in Figure 9, elder generation is inwardly cocked with the extension 421 of the lever end plug 42 at handle portion 4 two ends, make protuberance 422 detach locating hole 12, then whole handle portion 4 is upwards pushed away, allow axostylus axostyle 43 recess out the narrower place of locating hole 12, and move into locating of broad, and then make both sides pipe support 1 be able to outwards be opened (as shown in figure 10) a little, axostylus axostyle 43 two ends are withdrawed from allow on the locating hole 12 handle portion 4 can be arbitrarily on, move down, when handle portion 4 moves to preposition, 1 of both sides pipe support recovers original flat, axostylus axostyle 43 two ends are stretched in the locating hole 12 of book office once again, and then again handle portion is passed downwards, the groove 431 at axostylus axostyle 43 two ends is embedded the narrower place of width of these locating hole 12 lower ends, and the protuberance 422 of both sides lever end plug 42 equally also just in time buckles in the locating hole 12 of adjacent below, handle portion 4 is fixed and can not moves up and down, outside the rotation, and by the groove 431 at axostylus axostyle 43 two ends both sides pipe support 1 is fastened, in case pipe support 1 outwards opens.

So marriage relation between handle portion 4 and the both sides pipe support 1, only only offer locating hole in the inboard of pipe support 1, and the lateral surface of pipe support 1 is kept perfectly, its structure is not subjected to destroy, so not only keep the intact of crutch outward appearance, can also guarantee that crutch structure intensity is more strong and difficult by bending, fracture.

Secondly, pipe support 1 combines with the embedding ditch of middle pipe 31 relatively, takes the non-combination that runs through rivet, and it is minimum that the suffered destruction of pipe support 1 structure is dropped to, and improves outside the intensity of crutch; Also because of in after pipe 31 embeds between two pipe supports 1, by end limit, middle pipe 31 upper end 321 be pressed into lower end catch 311 prop up both sides pipe support 1, after two pipe supports 1 can be combined in advance with middle pipe 31 (combined cover 35 is not inserted in preceding as yet), just can carry out the operation of anodising, and will not reach middle pipe 31 separate processes by two pipe supports 1, so the pre-process operation that crutch is made can be saved very many time and cost; The trouble of hardware such as screw, rivet and operation has more been saved in the combination of a whole simultaneously crutch, and then allows crutch production, manufacturing process simplify and significantly reduce cost.

Although the above embodiments novelly have preferable exposure and a detailed description of specializing to this, be all and be familiar with this technology personage person and can know understanding, and its various types made and the partial change of method should all be not break away from this novel spirit and category.

Claims

1. turn a combination type oxter, comprise on the two relative pipe supports, the shoulder of holding up that the lower end respectively is equiped with the oxter bracketing reaches flexible foot tube part, and at the middle handle of locating to be equiped with the hand bracketing of two pipe supports, it is characterized in that: two pipe support opposed inside faces are provided with the embedding chute of outer narrow inner width, and the bottom land in both sides embedding chute offers corresponding locating hole wide at the top and narrow at the bottom, and the two ends of establishing a lever are arranged with the lever end plug that embeds and slide against the embedding chute, and this lever end plug is provided with extension, at the protuberance that is provided with on the extension corresponding to locating hole below adjacent, in lever, wear simultaneously the axostylus axostyle that two ends have groove, the two ends of axostylus axostyle are stretched in the locating hole after being passed by both sides lever end plug, and moved down and buckled into the narrower place of width of locating hole by to be allowed the groove of axostylus axostyle by lever, the protuberance of lever end plug extension also just in time embeds in the locating hole of adjacent below simultaneously.

2. turn combination type according to claim 1 oxter, it is characterized in that: flexible foot tube part comprise between the relative pipe support folder establish one can for a foot pipe wear and localized in pipe, and middle pipe both sides are provided with the fitting portion that cooperates with the embedding chute of pipe support, the lower end lateral surface of middle pipe embedded and slide part is provided with the outstanding catch that props up for the both sides pipe support, the end limit of the both sides, upper end of middle pipe is punched into the both sides pipe support and is embedded in, the integrated positioning in finishing between pipe and the both sides pipe support.