JPH04215702A - Pump type air pack inserted into shoe - Google Patents

Abstract

PURPOSE:To obtain a compact air pack to be inserted into a shoe integral with an air pump. CONSTITUTION:An air injection hole 3 and an air pump fitting leg lever 4 are provided on a manual air pump 1. A bottomed cylindrical joint member 5 is coupled with the opening of a bag-shaped air pack 13, a valve body 7 with many air vent holes 6 on the periphery section is freely intertable and coupled with the inner space of the joint member 5, and an air inflow hole 9 communicated to the air injection hole 3 provided on the air pump 1, a through-hole 8 to be inserted with the air pump fitting leg lever 4, and an air discharge hole 5d communicated to the air injection hole 3, the air inflow hole 9 and the air vent holes 6 are provided on the joint member 5. The air pack 13 is convenient to carry, it can be simply expanded when the air pump 1 is compressed, the integral feeling between a shoe and a leg can be simply obtained, and operability is excellent.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a pump-type air pack inserted into the space between the back of the upper of a shoe and the instep of the foot.

[
0002

[Prior Art] On page 1 of Japanese Patent Application Laid-open No. 64-68202, it is stated that in the past, an air pack was inserted into an outer shell made of synthetic resin as an air-fit type ski shoe, and air was pumped into the air pack using a manual pump. There is a description that there is an air pack that is inflated by injection, thereby tightening the skier's legs, and that inflating the air pack with a manual pump is time consuming and troublesome.

0003

[Problems to be Solved by the Invention] This description does not mention the specific structure of the air pack and manual pump, but simply uses a balloon-shaped air pack to inject air into a bicycle tire tube. It is thought that it was inflated using a manual pump. Therefore, it is necessary to carry an air pack and a manual pump, and the manual pump is particularly bulky and inconvenient to carry.

0004

[Means for Solving the Problems] A hard base plate is integrally provided on the bottom of a sealed and elastic hemispherical shell-shaped manual air pump, and an air injection hole is bored in the center of the base plate. Additionally, a leg rod for installing the air pump will be provided. A tangible cylindrical joint member is fitted into the opening of an air pack made of a strong and flexible bag, and a valve body with air circulation holes perforated in the periphery is fitted into the inner cavity of the joint member so as to be able to move forward and backward. An air inflow hole communicating with the air injection hole of the base plate is bored in the bottom wall of one side of the joint member, and a through hole is bored through which the leg rod of the base plate can be freely advanced and retracted. An air discharge hole communicating with the air circulation hole of the valve body is bored in the other bottom wall, and an air injection hole is formed in one bottom wall by pressing the valve body between the other bottom wall and the valve body. The purpose of the present invention is to provide an air pack that is integrated with an air pump inserted into shoes by elastically loading a closing spring.

[0005]

[Operation] When the air pump is compressed, air is injected into the air pack through the air injection hole provided on the air pump, the air inflow hole provided on the joint member, the air circulation hole provided on the valve body, and the air discharge hole provided on the joint member. The air pack expands and fits tightly between the back of the upper of the shoe and the top of the foot.

[0006]

[Embodiment] An embodiment of the present invention will be described with reference to the drawings. As shown in Fig. 1, a hard substrate portion 2 is integrally attached to the bottom surface 1a of an air pump 1 in the form of a hemispherical shell that is sealed and has elasticity. An air injection hole 3 is formed in the center of the base plate part 2, and a plurality of short leg rods 4 for attaching an air pump are provided protrudingly. A joint member 5 is formed in which two short cylindrical portions 5a5b with a bottom are maintained at a narrow interval and the opposing bottom walls are connected by a reduced diameter portion 5c, and a plurality of air circulation holes 6 are formed in the peripheral edge of the disc. The perforated valve body 7 is attached to one bottomed cylindrical portion 5a of the joint member 5.
A plurality of through holes 8 are formed on the outer bottom wall surface of the bottomed cylindrical portion 5a, through which the leg rods 4 formed on the base plate 2 are inserted so as to be freely retractable. An air inflow hole 9 communicating with the valve body 3 is bored, and a return spring 10 is elastically mounted between the inner wall surface of the bottomed cylindrical portion 5a and the valve body 7. A valve shaft 7a is integrally protruded from the center of the valve body 7, and is inserted gently into the reduced diameter portion 5c, so that the space formed between the two is an air discharge hole 5d.
Then, the valve shaft 7a is made to protrude into the other bottomed cylindrical part 5b, and the check valve 11 is fixed thereto, and further, the tube 12 is passed through and fixed to the outer bottom wall of the bottomed cylindrical part 5b. As shown in FIG. 2, the opening of an air pack 13 made of a strong and flexible bag is placed over the joint member 5 thus formed. As shown in FIG. 3, the air pack 13 with the air pump 1 attached is inserted between the back of the upper part of the shoe 14 and the instep of the foot, and the air pack 13 is inflated by compressing the air pump 1.
Step 3 presses the top of the foot appropriately to ensure a good fit. In the figure, reference numeral 15 is a release tube that releases the air in the air pack 13 when taking off the shoes.

[0007]

Effects of the Invention Since the present invention is constructed as described above, the leg rod 4 provided on the base plate 2 of the air pump 1 is inserted into the through hole 8 provided in the joint member 5, and the valve body 7 is pressed by the leg rod 4. While compressing the air pump 1, the air flows through the air inflow hole 9 communicating with the air injection hole 3, the air circulation hole 6, the air discharge hole 5d formed between the inner wall of the reduced diameter portion 5c and the valve shaft 7a, and the tube 12. The air pack 13 is then pumped into the air pack 13.
The feet and shoes 14 because it swells and fits closely to the instep of the foot.
A sense of unity can be easily obtained, and since the degree of expansion of the air pack 13 can be adjusted, a suitable fit can be obtained. When the air injection is finished, the air pressure inside the air pack 13 presses the check valve 11 to close the air discharge hole 5b, and at the same time, the check valve 11 and the valve shaft 7a are integrated into the central part of the valve body 7 to open the air inflow hole. Air pack 13 to block 9
This prevents the air from flowing back inside. In addition, the air pump 1 is securely attached to the through hole 8 of the joint member 5 with its leg rod 4, so there is no risk of the air pump 1 coming off and getting lost.Furthermore, the air pump 1 and the air pack 1 are compact and easy to carry. In addition, there is no discomfort when the air pack 13 is attached, and when the air pack 13 is damaged, a new one can be easily attached to the joint member 5 and can be easily replaced. As described above, the present invention is a useful invention that has a robust structure, can be used repeatedly, has an extremely simple air injection operation, can reliably provide a comfortable fit, and is easy to manufacture.

[Brief explanation of the drawing]

FIG. 1 is a partially broken enlarged cross-sectional view showing essential parts of the present invention.

FIG. 2 is a perspective view showing the appearance of the present invention.

FIG. 3 is a perspective view showing an implementation state of the present invention.

[Explanation of symbols]

1 Air pump 2　　　　Base part 3 Air injection hole 4 Leg rod 5 Joint parts 5a Air discharge hole 6 Air circulation holes 7 Valve body 8 Through hole 9 Air inflow hole 10 Return spring 13 Air pack 14 Shoes

Claims (1)

[Claims] Claims: 1. A hard base plate is integrally provided on the bottom of a manual air pump, an air injection hole is bored in the base plate, and a plurality of leg rods are provided protrudingly. A bottomed cylindrical joint member is fitted into the opening of the bag-like air pack, and a valve body having an air circulation hole bored in its peripheral portion is fitted into the inner cavity of the joint member so as to be able to move forward and backward. An air inflow hole communicating with the air injection hole is bored in one bottom wall of the joint member, and a through hole is bored through which the leg rod is inserted so as to be freely movable forward and backward. A pump-type air pack inserted into a shoe, which has an air discharge hole in the other bottom wall of the joint member, and a return spring that presses the valve body in the inner cavity of the joint member.