KR20040000098A - Crutch handle and its manufacturing method - Google Patents

Abstract

PURPOSE: A grip of crutch and a method of making the grip are provided to make the grip durable for a longer time and to prevent the grip from being slipped by manufacturing the grip with a dual injection method using hard PVC and soft PVC. CONSTITUTION: The grip of crutch includes a body of an injection molding using hard PVC comprising a through hole(3) for inserting a bolt widthwise; a protruding part(4) to be inserted into the holes of the supporting pole at the ends of the right and left sides widthwise; a convexo-concave part on the part where the fingers of a user touch; and a cushion layer(1) of an injection molding using soft PVC with a predetermined thickness to give a cushiony or elastic feeling to the palm of the user. A method of making the grip comprises the steps of: forming through hole(3) for inserting a bolt widthwise; forming a protruding part(4) to be inserted into the holes of the supporting pole at the ends of the right and left sides widthwise; forming a convexo-concave part on the part where the fingers of a user touch; and forming a cushion layer(1) of an injection molding using soft PVC with a predetermined thickness to give a cushiony or elastic feeling to the palm of the user.

Description

CRUTCH HANDLE AND ITS MANUFACTURING METHOD}

The present invention relates to a handle for crutches and a method of manufacturing the same, and more particularly, when using the crutches for a long time to reduce the pain applied to each part of the body such as the armpits and hands while at the same time holding the crutches during use The present invention relates to a crutch handle and a method of manufacturing the same having improved materials and structures to prevent slippage.

In general, crutches are used to assist the walk of the handicapped or injured patients. Crutches used in the past have been mainly used for wood products, but synthetic resins or metal material products have been widely used in recent years. The characteristics of the synthetic resin or metal material is light, less deformation and durable than wood.

1 is a perspective view showing the configuration of a general crutch.

1, the components of the crutch consists of a shoulderrest 10, the support 20 (20 '), the handle 30 and the height adjustment rod (40). At this time, the shoulder support part 1 is injection molded with a synthetic resin material and the inner side than the outside so that the user can feel comfort without being detached from the body to take the arm when the body is attached while contacting the human body. It is produced in a fine round shape.

In addition, the support (20, 20 ') can adjust the height according to the user's physical condition by drilling the tightening holes at regular intervals so that the height of the handle 30 and the height adjustment rod 40 can be adjusted. To be.

The height adjustment rod 40 positioned below the support 20, 20 ′ uses a joint 50, which is a coupling member made of synthetic resin, to facilitate coupling with the support 20, 20 ′. In order to be in close contact with the inner surface of the support 20, 20 ′, the screws are coupled to each other, and the screw is adjusted and fixed when the height is adjusted.

In the case of using the crutches configured as described above, as the user grips the handle 30, the gait using the crutches becomes possible.

However, the crutches are provided with a hard material such as wood or aluminum, and when the crutches are used for a long time, the user's armpits and hands are impaired, and the inconvenience of the crutches for a long time was considerable. In particular, there are many users complaining of hand pain due to the considerable pressure applied to the user's hand.

In order to solve the problem as described above, the user has used a wound bandage or sponge on the handle 30, but the bandages of the user holding the handle 30 of the crutches are overlapped with each other due to the winding. The hand may slip due to the friction of the overlapping bandages, and even when the handle 30 itself is rotated, the user may be injured because of slippage.

In addition, when the bandage is released from the handle 30, a problem arises that the bandage is rolled up again, and the bandage is easily polluted, which causes a problem of replacing the bandage.

In addition, the use of the sponge is easily broken when exposed to sunlight, so the life is short, the problem of cost is generated, the inconvenience that must be replaced at regular intervals occurred.

The present invention has been made in order to solve the problems of the prior art as described above, the object is to produce a double injection method using a rigid PVC and soft PVC to extend the life, the handle for crutches can be prevented during use And a method for producing the same.

In addition, another object of the present invention is to form a concave-convex portion to be in contact with the user's finger, and the portion in contact with the palm of the user is formed in a streamlined handle for crutches that can improve the ease of use by giving a cushion. And a method for producing the same.

In addition, another object of the present invention is to form a groove in the support of the crutches, and the handle for the crutches so as to fundamentally solve the slip caused by the rotation of the handle by forming a protrusion inserted into the groove made of a material of rigid PVC and It is to provide a method for producing the same.

1 is a perspective view showing the configuration of a common crutch.

Figure 2 is a plan view showing the configuration of the handle for crutches according to the present invention.

Figure 3 is a front sectional view of the handle for crutches according to the present invention.

Figure 4 is a right side view of the handle for crutches according to the present invention.

Figure 5 is a left side view of the handle for crutches according to the present invention.

<Description of Symbols for Main Parts of Drawings>

1: cushion layer 2: body

3: through hole 4: protrusion

According to the first feature of the present invention for achieving the above object, made of injection molding using a rigid PVC material, a transverse hole is formed in the transverse direction, the crutches at the ends of the left and right in the horizontal direction The protrusion is inserted into the groove of the support is formed, and the part in contact with the user's finger is formed by injection molding using the body and the concave-convex portion and soft PVC as a material, to a predetermined thickness on the outside of the body It is formed to have, the contact portion of the user's palm provides a handle for a crutch comprising a cushion layer formed in a streamline to give a cushion.

At this time, according to an additional feature of the present invention, the rigid PVC and the soft PVC uses a transparent material, the color is preferably used different.

According to a second aspect of the present invention for achieving the above object, by using a rigid PVC as a material, to form a through-hole for the bolt insertion in the horizontal direction, the left and right sides to form a protrusion inserted into the groove of the crutch support At the same time the portion that is in contact with the user's finger is the first injection molding process for forming the uneven portion to fit thereto; And forming a cushion layer to have a predetermined thickness by using a soft PVC as a material on the outside of the resultant of the first injection molding process, and forming a portion in contact with the user's palm in a streamline to give a cushion. Provided is a method for manufacturing a handle for crutches, including a second injection molding process.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings by those skilled in the art.

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

Figure 2 is a plan view showing the configuration of the handle for crutches according to the present invention, Figure 3 is a front cross-sectional view of the handle for crutches according to the present invention, Figure 4 is a right side view of the handle for crutches according to the present invention, Figure 5 is a left side view of the handle for crutches according to the present invention.

2 to 5, the reference numeral 1 is a cushion layer formed by double injection, made of soft PVC as a material and is formed to have a predetermined thickness. At this time, the portion of the cushion layer (1) in contact with the user's palm is formed in a streamline to give a cushion.

In addition, reference numeral 2 is a body that is formed inside the cushion layer (1) and is coupled to the support of the crutches as a whole, it is made of injection molding using a rigid PVC material, in the horizontal direction through holes for bolt insertion (3) is formed, and the protrusions 4 inserted into the grooves of the crutch support are formed at the ends of the horizontal left and right sides. At this time, the portion in contact with the user's finger is formed with an uneven portion to match it.

In the above configuration, the soft PVC and the rigid PVC, which are the materials of the cushion layer 1 and the body 2, use a transparent material, and the colors thereof are preferably different from each other.

Referring to the manufacturing process of the handle for crutches according to the present invention configured as described above are as follows.

First, using the rigid PVC as a material, to form a through-hole (3) for the bolt insertion in the horizontal direction, the left and right sides to form a protrusion (4) to be inserted into the groove of the crutch support, while at the same time contact with the user's finger Is to manufacture the body (2) through the first injection molding process to form the uneven portion accordingly.

Thereafter, the cushion layer 1 is formed to have a predetermined thickness by using a soft PVC as a material on the outside of the resultant of the first injection molding process, and the part in contact with the user's palm is formed in a streamlined form to cushion the cushion. A second injection molding process is performed.

At this time, it is preferable to insert the logo of the manufacturing country and the manufacturing company in a predetermined position of the body 2 using a different color in the second injection molding process.

While the invention has been shown and described with respect to particular embodiments, it will be appreciated by those skilled in the art that various modifications and changes can be made without departing from the spirit and scope of the invention as set forth in the appended claims. Anyone can grow up easily.

When applying the handle for the crutch of the present invention and the manufacturing method as described above, by producing a double injection method using a rigid PVC and soft PVC has an effect that can extend the life, and prevent slipping during use.

In addition, the portion in contact with the user's finger is formed in the concave-convex portion to match it, the portion in contact with the user's palm is formed in a streamlined form has the effect of improving the convenience of use by giving a cushion.

In addition, by forming a groove in the support of the crutch, and by forming a protrusion inserted into the groove of the handle in a rigid PVC material, there is an effect that can fundamentally solve the slip caused by the rotation of the handle.

Claims (3)

It is made of injection molding using a rigid PVC material, but the through-hole for the bolt insertion is formed in the horizontal direction, the protrusions inserted into the groove of the crutch support is formed at the left and right ends of the horizontal direction, the contact with the user's finger The body is formed with a concave-convex portion to fit it, It is made of injection molding using a soft PVC as a material, and is formed to have a predetermined thickness on the outside of the body, the portion in contact with the user's palm is characterized by including a cushion layer formed in a streamline to give a cushion. Handle for crutches. The method of claim 1, The rigid PVC and soft PVC uses a transparent material, the handle for the crutches, characterized in that the color is different. Using a rigid PVC as a material, to form a through-hole for the bolt insertion in the horizontal direction, and to form a protrusion to be inserted into the groove of the crutch support on the left and right side, while forming a concave-convex portion to contact the user's finger. First injection molding process; And 2 to form a cushion layer to have a predetermined thickness by using a soft PVC as a material on the outside of the result of the first injection molding process, the part in contact with the palm of the user to give a cushion to give a cushion Method of manufacturing a handle for crutches, characterized in that comprises a secondary injection molding process.