KR200362271Y1 - One bolt-type adjustable Crutches - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs.

The present invention is to adjust the height of the handle and the height of the center leg at the same time by using one bolt and the butterfly nut to adjust the height of the crutches.

I. The technical problem the invention is trying to solve

Conventional crutches should use one or two bolts to adjust the height of the leg stand [Figure 3] for height adjustment, and use a separate bolt to adjust the height of the handle [Figure 3]. So there is an uncomfortable problem.

All. Summary of solution of design

To solve this problem, the middle leg stand for crutch height adjustment penetrates the bottom cap and moves along a straight side stand, and the handle between the middle leg stand and the side bent side of the other side [Figure 1, Figure 1. 6] or the handle holder [Figure 1, Figure 2. 12] using the handle [Fig. 1, Fig. 2. 6], unlike the conventional crutches [Fig. 3], the length of the center leg [Fig. 8] for height adjustment is limited by the handle. No longer needed, while using a single bolt and a butterfly nut to lengthen the height adjustable distance at the same time to adjust the height of the handle and the height of the middle leg at the same time to speed up the height adjustment time.

Important uses of the design

Description

One bolt-type adjustable Crutches}

The design of the present invention is that the middle leg for adjusting the height of the crutches penetrates the bottom cap [Fig. 9] and moves along a straight side stand, and the handle between the middle leg stand and the other side stand [Fig. 1, Fig. 1. 6] or the handle holder [Fig. 1, Fig. 2. 12] using the handle [Fig. 1, Fig. 2. 6] by using one bolt and the butterfly nut to adjust the height of the handle and the height of the center leg at the same time.

Conventional crutches [Fig. 3] have two (two bolt-type height-adjustable crutches) or three (three bolts) to adjust the height of the middle leg [three degrees] and the handle [three degrees]. Type height adjustment crutches) and bolts have a problem using

As devised to solve the above conventional problems of the present invention,

The purpose of the present invention is to limit the height of the crutch height [mid Fig. 2] by the handle [FIG. 3] to eliminate the need for a separate handle and the height adjustment bolt and butterfly nut 1 By using two bolts and a butterfly nut [Fig. 7], it is possible to adjust the height of the handle [Fig. 3] and the height of the middle leg [Fig. 2] at the same time.

1 is a perspective view of the one-bolt type height adjustment crutches of the present invention

Figure 2 is a front perspective view of the one-bolt type height adjustment crutches of the present invention

Figure 3 is a perspective view of the present crutches (three bolt type height adjustable crutches, two bolt type height adjustable crutches)

<Explanation of symbols for the main parts of the drawings>

1.shoulder 2.side stand 3.bolt 4.side stand bolt hole 5.butter nut 6.handle

7.Leg stand bolt hole 8.Leg stand 9.Bottom stopper 10.Rivet 11.Rubber tip 12.Handle holder

Hereinafter, with reference to the accompanying drawings will be described in detail the most preferred embodiment of the present invention.

As shown in Fig. 1, the center leg for adjusting the height of the crutch with the rubber tip [Fig. 11] attached to the lower part of the crutch passes through the bottom cap [Fig. 9] and moves along the straight side stand and moves the middle leg. A handle between the stand and the side bent at the other side of the letter S [Figure 1, Figure 1. 6] or a handle holder [Figure 1, Figure 2. 12] using the handle [Fig. 1, Fig. 2. 6]. In the lower part, the side stand in line with the bottom plug and the side stand curved with an S-shaped rivet [Fig. 1, Fig. 1. 9] or rivet the side stand in line with the bottom plug [Figure 1, Figure 2. 9] by the combination of the handle and the middle leg [Fig. 8] and both sides using a single bolt to adjust the height of the handle and the middle leg at the same time.

As described above, the present invention is to adjust the height of the handle and the height of the middle leg at the same time by using one bolt and the butterfly nut to adjust the height of the crutches.

Claims (3)

The height adjustable middle leg stand [FIG. 8] penetrates the bottom cap [FIG. 9] with the rubber tip [FIG. 11] attached to the lower part of the crutch and moves along the straight side stand. Install the handle [Fig. 1, Fig. 1, 6] between the side bars bent by the S letter on the other side, so that the handle, the center leg stand [Fig. 8] and the side stand are assembled using one bolt and a butterfly nut. One-bolt crutches that adjust the height of the handle and the height of the middle leg at the same time. In the above (claim 1), the straight side stand and the curved side bezel [Fig. 1, Fig. 1, 2] are combined with rivets [Fig. 10], and the height-adjusted dressing legs [Fig. 8] ] One bolt type crutches installed with the bottom bolt type height adjustment crutches [Fig. 1, Fig. 1, 9], [Fig. 1, Fig. 2, 9] to allow the] to move through. Remove the side bar curved by the letter S in the above (Claim 1) and use the handle holder [Fig. 1, Fig. 2, 12] on the straight side stand [Fig. 1, Fig. 2, 2]. By installing 1 degree, Fig. 2, 6], the handle and the center leg [1 Fig. 8] and the side stand are assembled by using one bolt and the butterfly nut. Bolted crutches.