JPH0417042Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to an improvement of the heel part of a shoe for connecting the heel and the lift, and is particularly suitable for inserting a synthetic resin shaft lift. The invention relates to improvements to the heels of shoes.

[Prior art and its problems]

Conventionally, methods for joining the heel and lift include nailing, adhesive, or drilling a vertical hole in the heel and inserting a metal core tube into the hole. Various types of lifts have been proposed, including ones in which a lift with a synthetic resin shaft is inserted. In the case of nails or glue, there is a problem that the bonding force is weak and it is easy to come off, and in the case of inserting a metal core tube, it is necessary to provide a bullet piece to attach the core tube, which makes the structure complicated and The problem was that the shoes were heavy because they were made of metal. For this reason, the most commonly used method is to use a lift with a shaft made of synthetic resin, which is easy to install and can be supplied at a relatively low cost. Therefore, efforts have been made to reduce the gap between the shaft part and the heel, or to lengthen the shaft part, but the problem of easy falling out remains unsolved. is the current situation.

[Purpose of invention]

The present invention solves these problems and provides a shoe heel in which the heel and lift can be easily and reliably joined, and the joint is strong.

[Means for solving problems]

In order to achieve the above object, the heel of the shoe of the present invention has an insertion hole 2 into which the shaft 5 of the lift 4 is fitted, which is bored at the bottom of the heel 1 made of synthetic resin, as shown in the drawings corresponding to the embodiment. , spline-like vertical grooves 3 are provided.

[Effect]

If you insert the shaft rods 5, 5 of the lift 4 into the spline-shaped vertical grooves 3, 3, the spline-shaped vertical grooves 3, 3 will act as guides for the vertical grooves 6 of the shaft rods 5, 5, and the movement will be smooth. In addition to being able to be inserted, the shaft rods 5, 5 of the lift 4 are made softer than the heel 1, so when press-fitted, the vertical grooves 3 of the heel will cause the shaft rods 5, 5 to
The outer periphery of the material is crushed, the contact area increases, and the material is integrally bonded to the material so that it will not come off.

〔Example〕

Hereinafter, an embodiment of the present invention will be described. 1 is a heel body made of hard synthetic resin into a desired shape, and holes 2 and 2 are formed by inserting two vertically long lifts at the front and back of the bottom. . This insertion hole 2,2
is a spline-shaped vertical groove 3 in the vertical direction of the inner peripheral wall surface,
3 is formed. 4 is a lift, which has shaft rods 5, 5 made of synthetic resin softer than the heel 1 that fit into the insertion holes 2, 2 and are vertically installed in the front and back;
A large number of vertical grooves 6 are provided in the vertical direction of the outer circumferential surface to form an uneven portion 6a. The number of vertical grooves 6 does not necessarily have to match the number of spline-shaped vertical grooves 3.

To explain how the present invention configured in this way is used, when the shaft rod 5 of the lift 4 is press-fitted into the insertion hole 2, since the shaft rod 5 is made of a softer material than the insertion hole 2, Vertical groove 6 on the outer peripheral surface of the shaft rod portion 5
are crushed by the vertical grooves 3 made of hard resin to ensure a firm bond.

In the above embodiment, two shaft rods 5,
Although the explanation has been made using the lift 4 having five shafts, the present invention is not limited to this, and it goes without saying that a lift with a larger number of shafts may be used.

〔effect〕

The present invention is characterized in that a spline-shaped vertical groove 3 is provided in the insertion hole 2 into which the shaft rod 5 of the lift 4 is fitted, which is bored in the bottom of the heel 1 made of synthetic resin. It serves as a guide when inserting the shaft rod portion 5, making it easy to insert, and when inserted, the vertical groove 6 on the outer peripheral surface of the shaft rod portion 5 is crushed by the spline-shaped vertical groove 3, so that it is press-fitted. Since the contact area increases, the parts can be firmly connected together without rotating or coming off. In addition, since the entire cover is made of synthetic resin, it is lightweight and comfortable to cover.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is an exploded side view of the device in use, FIG. 2 is an enlarged vertical sectional view of the heel portion, and FIG. 3 is a cross-sectional plan view thereof. 1... Heel, 2... Insertion hole, 3... Spline-like vertical groove, 4... Lift, 5... Axis rod.

Claims (1)

[Scope of utility model registration request] A shoe heel characterized in that a spline-like vertical groove 3 is provided in an insertion hole 2 into which a shaft 5 of a lift 4 is fitted, which is bored in the bottom of a heel 1 made of synthetic resin.