KR200148502Y1 - An easily adjustable clutch - Google Patents

Abstract

The present invention relates to a crutch used by a person with a disability of the leg part in an individual or a medical institution, so that the user can easily operate the crutch when the user's height or a step, a ramp, or a vehicle gets on or off. To provide a more convenient and practical crutches for the physically handicapped person, the shoulder rest 40 and the handle 42 is firmly fixed by the support rods 41 on both sides of the crutches so that the user relies on the crutches. , When the user needs to adjust the height of the crutches, the center portion of the crutches is a height adjustment lever 60 is located so that it can be adjusted immediately, when the height of the inner body 44, pull the height adjustment lever (60) An actuating spring 53 is present on the bottom surface of the upper lid 51, and a fixing pin 55 to be fixed at an appropriate position of the body when the height adjusting lever 60 is operated. The lower lid 54 is embedded at the bottom of the inner body 44, the inner body of the outer body 70 has a spring 71 is built, so that the user presses the crutches slightly with the body while pulling the height adjustment lever (60) The fixing pin 55 is removed from the outer body 70 is adjustable to the height required by the spring 71, and by providing an appropriate position is to provide a crutch easy to operate and convenient to carry.

Description

Adjustable crutches

The present invention relates to the neck used by the physically handicapped part of the leg in an individual or a medical institution, and can be easily manipulated when the user needs to adjust the length of the crutches when the user's height is different or when the stairs and the vehicle are getting on or off. The purpose is to provide crutches more convenient and practical to the physically handicapped.

As a conventional design related to the present invention, the apparatus for adjusting the length of crutches of Utility Model Publication No. 89-4443 ('89 .7.5) is fixed to the lower end support 16 of the crutches, as shown in FIG. The ruler hole 15 is drilled in the adjustment pipe 13 at regular intervals, and the ruler protrusion 14 is installed above the strut 16, and the other side of the ruler protrusion 14 is pressed inward with one hand. The length is adjusted by increasing or decreasing the strut 16 by hand. Such crutches take some time because the user must adjust the length by stopping for a while to walk, and in particular, it is inconvenient with existing products because it is impossible to operate immediately when getting on or off the stairs or vehicles.

On the other hand, Figure 2 shows the flexible wood carving of Utility Model Publication No. 87-3047 (May 15, '89), which springs the spring 26 to the two support angles 27 at the lower end of the wood carving. Spring 26 is formed on the top of the flow rod 30 to absorb the external impact caused by the user's weight when the flow rod 30 is in contact with the ground, the elasticity of the spring (B6) to fit the user's weight Elastic adjustment nut 32 for adjusting is fastened. However, such a conventional design also has only the function of the shock absorber, there was no function to adjust the length of the crutches as needed. As can be seen from the two conventional designs cited above, the user has no group to use on a flat road, but when he goes out of the house to go to school or work, the stairs or underpasses of the building that easily collide with each other, If the length of the crutches was not adjusted when climbing up and down the ramps, the crutches used on the plain were difficult to walk, uncomfortable, and absolutely needed the help of others.

In view of the inconvenience of using the traditional crutches as described above, especially in the case of the physically handicapped people in Korea lacks consideration for various facilities, the assistance of others when climbing up and down stairs or ramps, or getting on and off vehicles such as buses In order to solve the inconveniences that had to be received, the present invention is to install a lever-type height adjustment device in the lower part of the handle to provide a crutch so that it can be adjusted anywhere and when the height adjustment is necessary, and to reduce the length of the crutches for convenient carrying Its purpose is to.

In order to achieve the above object, in the present invention, the body of the crutches is made of light metal, the weight of the crutches, the shoulder support is firmly fixed by the support rods on both sides so that the user can rely on the crutches, the shoulder rest In the proper position below, a hand-held handle is bolted to the top of the height adjustment lever. The middle part is composed of the height adjusting lever and the inner body to adjust the height of the crutches, and the upper side of the inner body has a spring acting when the height adjusting lever is pulled on the bottom of the upper lid, and when the height adjusting lever operates Fixing pin and fixing pin to be fixed to the proper position of the outer body and the wedge to be fixed and separated is provided at the bottom of the height adjustment rod. In addition, the inner body of the lower end of the crutch is built with a spring so that the user can be adjusted to the required position by the elasticity of the spring while pressing the body slightly while pulling the lever. Hereinafter, the details of the present invention will be described with reference to the accompanying drawings.

1 and 2 are perspective views of crutches according to the conventional design.

Figure 3 is an exploded perspective view of the crutches according to the present invention.

Figure 4 is a perspective view of the crutches according to the present invention.

5 is a cross-sectional view taken along the line A-A of FIG.

Figure 6a shows the operating state of the present invention is a state pulled the lever.

Figure 6b is a diagram showing the operating state of the present invention with a lever.

* Explanation of symbols for main parts of the drawings

40: shoulder rest 41: support rod

42: handle 43: handle fixing screw

44: inner body 45: release prevention bolt

51: upper lid 52: insertion hole

53: spring 54: lower lid

55: fixing pin 56: release bolt insertion groove

57: fixing pin mounting hole 58: spring

59: fixing bolt 60: height adjustment lever

61: fixing screw 62: height adjustment rod insertion hole

63: height adjustment bar 64: spring support

65: wedge 70: outer body

71: spring 72: fixing pin fixing hole

73: rubber packing 80: handle fixing hole

90: Information Hall

As shown in FIGS. 3 to 5, the structure of the present invention is welded from the shoulder rest 40, the handle 42, and the lower straight portions of both support rods 41 supported by the support rods 41. Body 44 is formed at the bottom of the crutches, the height adjusting rod 63 is inserted into the upper lid 51 and the insertion hole 52 of the upper lid 51, the inner body 44 is fitted, the height, The adjustment bar 63 is inserted into the height adjusting lever 60 fixed to the upper lid 51, the inner body 44 is fitted to the outer body 70 and the height adjustment bar (60) by operating the height adjustment lever ( The spring 71 is embedded in the outer body 70 so that the inner body 44 can move up and down by operating 63.

The left and right sides of the outer body 70 has a fixing pin fixing hole 72 is fixed to the fixing pin 55 is fitted, the body of the crutches were manufactured using a hollow tube of light light metal. The upper lid 51 is inserted into the upper end of the inner body 44, and an insertion hole 52 into which the height adjusting rod 63 is fitted is formed at the center of the upper lid 57. Spring 53 is inserted into the upper end of the spring support 64 of the height adjustment rod 63 is inserted into the upper lid 51.

The height adjustment lever 60 is provided with a height adjustment rod insertion hole 62 so that the height adjustment rod 63 is inserted into the hollow shaft, the height adjustment lever 60 and the height adjustment rod 63 is fixed. It is fixed to each other by screws 61.

The lower end of the height adjustment rod 63 is formed with a wedge 65, which is inserted into the center of the divided lower lid 54 fitted to the lower end of the inner body 44 to push both fixing pins 55. On both sides of the divided lower lid 54, the fixing pin mounting hole 57 is formed on both sides of the center to match the fixing pin fixing hole 72 formed in the outer body 70, and the fixing pin mounting hole ( On the 57, a spring 5a is inserted into which the fixing pin 55 operates inward and outward by the wedge 65.

The inner body 44 is fitted and the fixing pin fixing hole 72 is drilled on the left and right sides of the outer body 70 having the spring 71 therein, and the inner body 44 is fitted to the outer body 70. A separation prevention bolt 45 is fixed to the lower end of the inner body 44 so as not to fall off when adjusting the height along the guide hole 70.

The present invention configured as described above, when the user of the crutches need to adjust the height, while pressing the crutches slightly with the body pulling the height adjustment lever 60 installed at the bottom of the handle 42, as shown in Figure 6a, lower lid 54 The fixing pin 55 is pulled out of the outer body 70 by the action of the spring 58 fitted to the fixing pins 55 on both sides, and at this time, the crutches are lifted up and down by the spring 71 embedded in the outer body 70. You can move. When the height adjusting lever 60 is placed at the height required for the up and down movement, as shown in FIG. 6B, the lower end wedges 75 of the height adjusting rod 63 are formed at both sides of the lower lid 54. When the 55 is pushed outward, the fixing pin 57 is fitted into the fixing pin fixing hole 72 of the outer body 70 to fix the crutches.

As described above, the present invention is made of light light metal, and the height adjustment lever is mounted on the lower part of the handle and the lever is pulled slightly by pressing the body while pulling the lever into the outer body. The wedge provided in the fixing pin is fixed to the hole machined on the left and right sides of the outer body, so that the height can be easily adjusted, so that the body can be freely used not only on flat ground, but also on ramps, stairs and vehicles. There is no inconvenience.

Claims (1)

In the crutches made of a hollow shape of aluminum or other light metal, which is composed of a handle and a predetermined lower position of the shoulder rest, the body portion is formed at the bottom by the support bars on both sides, the handle 42 The height adjustment bar 60 is configured to adjust the height of the crutches, the height adjustment rod 63 is fixed by the fastening screw 61 is fastened to the height adjustment lever 60, the upper lid of the inner body 44 (51) penetrates the center, and the lower end of the height adjustment rod (63) is formed with wedges (65) to fix the fixed pin (55) fitted with the spring (58) in the lower lid (54) to the outer body (70). The inner body 44 is configured to be fixed to the pin fixing hole 77, the inner body 44 is fitted and the spring 71 to support the inner body 44 when height adjustment and to move up and down and The fixing pin 55 in the lower lid 54 of the inner body 44 is fitted Crutches that can be height-adjustable, characterized in that consisting of the outer body 70 is formed with a fixing pin fixing hole 72 to be built.