JP2012509704A - Footwear with elastic means - Google Patents

Abstract

The present invention relates to footwear with elastic means, and provides footwear with elastic means that is easy to manufacture and has excellent elastic performance. In order to achieve this object, the elastic cap formed of a material having higher elasticity than the peripheral portion to be installed, the conical mounting groove formed in the elastic cap, and the elastic cap are separately provided. There is provided a footwear comprising: a spring formed and formed in the same conical shape as the conical shape of the placement groove, and provided in the placement groove. As a result, the present invention has an effect that it is possible to more easily manufacture footwear in which a spring and an elastic block are installed at the same time, and it is possible to manufacture footwear of excellent quality without defects.
[Selection] Figure 3

Description

  The present invention relates to footwear with elastic means, and more particularly to footwear in which a conical spring is provided in a conical mounting groove at the bottom of the footwear.

  Recently, a footwear that has improved cushioning performance by absorbing a shock applied to the footwear to protect the wearer's joints and to provide a spring at the bottom of the footwear so as not to feel much fatigue when walking It has been developed in various ways.

  As a typical example of this type of footwear, FIG. 1 shows a footwear provided with a spring near the heel of the footwear. The footwear is provided with only a spring as a device capable of absorbing an impact. In order to provide the spring 113, an upper plate 111 and a lower plate 114 that support both ends of the spring are provided, and both ends of the spring are The upper plate 111 and the lower plate 114 are locked to the protrusions 112. Such a spring structure requires the use of a spring with a large wire diameter to support the impact of walking and the load of the wearer, or the provision of a large number of springs. In order for the plate 111 and the lower plate 114 to move up and down, it is necessary to have a structure for guiding the movement, and in order to provide the spring, it is necessary to have parts that support both ends of the spring, and thus it becomes complicated overall. When footwear ages, noise due to the movement of the upper plate becomes a problem. In addition, by using a cylindrical spring, the spring has a predetermined height even when it is compressed to the maximum and the rotating parts (turns) are in close contact with each other. It is necessary to ensure a predetermined height for the embedded portion of the spring in the footwear so that a space for moving the spring can be secured when the foot is embedded in the footwear.

  The footwear shown in FIG. 2 is obtained by partially eliminating the above-described problems. The footwear shown in FIG. 2 has an elastic block 210 embedded in the lower portion of the footwear and a spring 212 embedded in the elastic block. Installed at. Such a spring installation structure eliminates the need for a separate configuration for supporting the spring, and the spring is embedded in the elastic block, thereby supporting a large impact and preventing the spring from swinging. Since the characteristics of a spring excellent in restoring speed and restoring force appear at the same time, an elastic body excellent in buffering action can be configured without using a large spring. In addition, since the spring is formed in a conical shape, the upper and lower rotating parts (turns) do not collide with each other even during compression, and the rotating parts (turns) do not come into contact with each other. Does not require height. For this reason, it can be said that the elastic block in which the conical spring of FIG. 2 is embedded is more suitable than the cylindrical spring in footwear having a thin lower portion such as an insole or midsole of footwear.

  However, when this type of elastic body is molded with the spring embedded in the elastic block, an elastic imbalance occurs when the spring is shifted to one side due to problems such as injection pressure or poor support during manufacturing. In order to prevent such problems, it is necessary to accurately adjust the position so that the spring is positioned in the middle when the elastic block is manufactured by injection or the like, but there are considerable difficulties in the manufacturing process. The spring is embedded in the elastic body, and since the elastic body is formed of a normal porous material, it is difficult to form the transparent body, and the spring can be configured to be seen through from the outside. There are difficulties.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide footwear with elastic means that is easy to manufacture and has excellent elastic performance.

  Another object of the present invention is to provide footwear having a structure in which a spring can be observed from the outside.

  In order to achieve the above object, the footwear according to the present invention comprises footwear provided with elastic means in a lower part, wherein the elastic means is formed of an elastic cap made of a material having higher elasticity than a peripheral portion where the footwear is installed, A conical mounting groove formed in the elastic cap and the elastic cap are separately formed and formed in the same conical shape as the conical shape of the mounting groove, and are installed in the mounting groove of the elastic cap. And a spring.

  The footwear according to the present invention is a footwear having a heel, and a space is formed in the heel, and an auxiliary heel that appears outside the bottom surface of the heel is inserted into the space, and the upper heel of the auxiliary heel is inserted. It is also possible to configure the elastic means to be compressed by the auxiliary rod.

  In another aspect, the footwear according to the present invention is a footwear comprising elastic means in a lower portion, wherein the elastic means includes a conical mounting groove formed on any of an insole, a midsole and an outsole of the footwear, And a spring that is formed in the same conical shape as the conical shape of the mounting groove so as to be placed in the mounting groove, and is provided in the mounting groove.

  In the footwear according to the present invention, it is preferable that an air passage that connects the interior of the footwear where the foot is located or the outside of the footwear and the placement groove described above is formed in the lower portion of the footwear.

  Further, the footwear of the present invention is preferably provided with a transparent window through which the spring in the placement groove can be seen from the outside of the footwear.

  According to the present invention, the following effects can be obtained.

  First, since the elastic cap and the spring are separately manufactured and assembled, the relative positions of the elastic cap and the spring can be automatically adjusted only by assembling the elastic cap and the spring. That is, as in the prior art shown in FIG. 2, there is no imbalance of elastic force in the elastic body due to the relative displacement of the spring in the elastic block, and accurate and uniform quality. Footwear can be manufactured.

  Secondly, the present invention does not interfere with each other when the spring rotating part (turn) is compressed, and since the elastic block body is not interposed between the rotating parts (turns), the elastic deformation is free. The amount of deformation and the amount of shock absorption can be increased. For these reasons, even if the height of the spring is lowered, the amount of deformation and the amount of shock absorption can be increased, so that the lower part of the footwear can also be installed on a relatively thin footwear.

  Thirdly, since the elastic spring and the elastic cap are simultaneously compressed and restored when a load or impact is applied, the restoring force and the restoring speed are better than when only the elastic block is provided, and the elastic cap However, it is possible to prevent the elastic spring from swinging and enhance the feeling of wearing the footwear.

  Fourth, since the spring is not installed inside the elastic cap, a state where the spring is embedded is confirmed by forming a transparent portion at a position where the spring can be seen through, such as a lower part of footwear. It is easier for the producer to find manufacturing defects and for the buyer to check the elastic performance of the footwear.

Sectional drawing which shows the conventional footwear with a spring. Sectional drawing of the footwear provided with the conventional elastic block with a spring. The exploded view of the footwear by which the elastic means which concerns on this invention was provided in the mid sole. The exploded view of the footwear by which the mounting groove | channel of the spring was formed in the insole or the midsole by other embodiment of this invention. 1 is a cross-sectional view of footwear provided with an air flow path according to the present invention. Sectional drawing of the footwear which provided the elastic means in the footwear which has a heel by other embodiment of this invention. Sectional drawing of the footwear which provided the elastic means in the footwear which has a heel by other embodiment of this invention.

  Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 3 shows an footwear according to an embodiment of the present invention, and shows an exploded view in which the elastic means 40 is provided on the midsole of the footwear. A space 31 into which the elastic cap 41 is inserted is formed in the midsole 30 of the footwear, and the elastic cap 41 is inserted. The elastic cap 41 is formed of a material having higher elasticity than its peripheral portion, that is, a midsole into which the elastic cap 41 is inserted, and serves as an elastic means. The elastic cap 41 is formed with a mounting groove 42 having the same shape as the conical elastic spring 43, and is assembled in such a manner that the elastic spring 43 is mounted in the mounting groove 42 described above. When the elastic spring 43 is formed in the same shape as the placement groove 42 and the elastic spring 43 is pushed into the placement groove 42, the size and shape of the elastic spring 43 are configured so that the outer surface of the spring fits the placement groove. It is also possible to insert the elastic spring 43 into the placement groove 42 in a state where the elastic spring 43 is slightly smaller than the placement groove 42 and is loosened. Further, when the elastic spring 43 is formed slightly larger than the mounting groove 42 as a whole and the elastic spring is forcibly pushed into the mounting groove 42, the elastic spring 43 is locked in the mounting groove 42. The connection with the elastic cap 41 can be maintained without a separate connection means. In order to hold the elastic spring more firmly in the mounting groove, a separate fixing means such as an adhesive can be considered.

  The elastic spring is formed in a conical shape, but may have any shape such as a cone, a quadrangular pyramid, or a polygonal pyramid, and is most preferably formed in a conical shape. The reason why the spring is formed into a conical shape is that in the case of a cylindrical spring, the compression distance must be limited by the upper and lower spring rotating parts (turns) contacting or colliding with each other during compression, but as described above. When the spring is wound in a conical shape, even if it is compressed to the maximum, the lower and upper spring rotating parts (turns) do not interfere with each other. Yes, the spring can be installed even when the height of the space where the spring is located is low. The spring rotating portion (turn) means one winding shape that is generated every time when the spring is manufactured in a cylindrical or conical winding shape, and is wound 10 times. In the case of the cylindrical spring manufactured in this manner, there are ten rotating parts (turns). The elastic cap 41 can be formed from a known material having elasticity into a hexahedron, a cylindrical shape, or the like, and the elastic spring is mounted by forming a mounting groove 42 in which the elastic spring 43 is mounted.

  The midsole is illustrated in FIG. 3 as the position where the elastic cap is inserted. However, the elastic cap 41 is not necessarily installed only on the midsole, and the elastic cap 41 is also provided on the insole 20 or the outsole 50 in some cases. Can be inserted, and the space 31 can be formed and installed. The space 31 and the elastic cap 41 are formed downward, but the elastic cap 41 can be turned over to form a space that can be inserted from above, and the space 31 is provided. An insole, a midsole, or an outsole that is formed may be perforated so that the upper and lower surfaces of the elastic cap 41 are exposed. Further, it is possible to form a large number of spaces 31 and to install a large number of elastic caps 41 with elastic springs 43 under the footwear.

  On the other hand, by attaching a receiving plate slightly wider than the elastic cap 41 to the upper and lower surfaces of the elastic cap 41, the load can be configured to be evenly distributed over a wide area. Further, when a conical spring covered with an elastic cap is embedded in the lower part of the footwear, it is preferable to partially install a transparent window 51 made of a transparent material so that the spring can be seen from the outside.

  As described above, in the footwear in which the conical elastic spring 43 covered with the elastic cap 41 is embedded, the elastic spring 43 and the elastic cap 41 are simultaneously compressed when a foot load or an impact is applied, and the restoring action is performed. It occurs at the same time. For this reason, it is excellent in a restoring force and a restoring speed compared with the case which consists only of a block-shaped elastic body, and the elastic cap 41 can prevent the elastic spring 43 from shaking, and can enhance the wearing feeling of footwear. Further, even when a strong impact or load is applied, the elastic cap 41 and the elastic spring 43 receive the load at the same time and are deformed by the same expansion / contraction amount to receive the load. can do.

  FIG. 4 shows footwear according to another embodiment of the present invention. In the footwear according to FIG. 4, the insole 20, the midsole 30, or the outsole 50 is configured to directly play the role of an elastic cap without installing a separate elastic cap 41. In such footwear, conical mounting portions 22 and 32 are formed so that the conical spring 43 can be inserted into the insole, midsole or outsole serving as the elastic cap 41, and the elastic springs are formed on the mounting portions. 43 can be inserted. In addition, the position where the placement parts 22 and 32 are installed can be selected from insole, midsole or outsole, and the elastic springs 43 can be installed on a number of placement parts 22 and 32. It is also possible to partially install the transparent window 51 made of a transparent material so that the spring can be observed from the outside. Further, by mounting a receiving plate slightly wider than the mounting portions 22 and 32 on the upper and lower surface where the elastic spring 43 is installed, the load acting on the spring is configured to be evenly distributed over a wide area. It is also possible. Also in the above-described embodiment, the elastic spring 43 and the peripheral portions of the elastic spring mounting portions 22 and 32 are compressed together and restored together, so that in the case of an insole or midsole made of only an elastic body. In addition, the restoring force and the restoring speed are excellent, and the surrounding elastic body prevents the elastic spring from swinging, and the wearing feeling of the footwear can be enhanced.

  In the above-described embodiment, when an elastic body is formed by inserting an elastic spring into the mounting portions 22 and 32 of the insole, midsole or outsole that plays the role of the elastic cap 41 or the elastic cap, However, since the elastic cap and elastic spring are simultaneously loaded and deformed with the same amount of expansion and contraction, even if the spring has a small capacity than the case where only the elastic spring is installed, it acts as a buffer against the same impact as the large spring. Compared with the case where only the elastic body is installed, a smooth buffering action is performed by the action of the spring having excellent restoring force and restoring speed. In addition, there is no need for a separate means for fixing the spring, and it is only necessary to assemble and configure each part without the need for a separate operation for accurately adjusting the position of the spring during manufacture. There is also an advantage that the configuration is simple.

  On the other hand, when the elastic springs 43 are embedded in the mounting grooves 22, 32, and 42 as described above, the interior spaces of the mounting grooves 22, 32, and 42 are filled with air, and the four sides are sealed during compression. Since there is a possibility that the case of acting as an air cushion may occur, a component that can discharge compressed air inside to the outside at the time of compression is required for a smoother elastic action. FIG. 5 shows such a configuration, and an air flow path 34 through which the internal air of the placement grooves 22, 32, 42 can be discharged is formed to discharge the air into and out of the footwear. When the elastic cap 41 is installed on the elastic spring 43, a separate air flow path connected to the air flow path 34 can be formed in the elastic cap 41, but an air flow path is provided in the elastic cap 41. In order to prevent the deterioration of the elastic performance, air passages connected to the lower surfaces of the mounting grooves 22, 32, 42 are separately provided so that air is discharged through the lower surface of the mounting groove 42. .

  FIG. 5B shows a shape in which a connecting groove 52 is provided in the outsole so that the mounting grooves 22, 32, and 42 provided in the midsole and the air flow path 34 can be connected. A connecting passage that connects the air flow path 34 provided in the midsole and the space in the mounting grooves 22, 32, 42 by forming the connecting groove 52 in the outsole 50 and being coupled to the lower part of the midsole. In the configuration in which the elastic cap 41 is provided, it is not necessary to pierce the elastic cap 41 with a separate connection hole, so that the internal air can flow without a decrease in the elastic performance of the elastic cap 41.

  Such an air flow path 34 also serves as an air discharge path. However, when the mounting groove 42 is restored after being compressed, the air flow path 34 functions as a path through which air flows. The effect of removing moisture and odor can be expected by linking the inside of the footwear where the sole is located and the air hole 36 to promote the air flow inside the footwear. Further, a check valve is provided in each air flow path after separately installing an air flow path for connecting the outside of the footwear and the mounting grooves 22, 32, 42 together with an air flow path connected to the inside of the footwear. Due to this, when the pumping action of air due to the expansion and contraction action of the mounting groove occurs, air can be supplied or discharged in only one direction inside the footwear, and fresh external air is continuously supplied to the inside of the footwear. can do.

  Another embodiment of the footwear with elastic means according to the present invention is shown in FIGS. These embodiments are applied to footwear having heels, such as men's shoes and high heel shoes.

  According to FIG. 6, the footwear with elastic means according to the present invention forms a communication space 61 that communicates vertically with the heel of the men's shoes, and the communication space 61 communicates from the lower part to the upper part of the heel. The insole 20 ′ is covered at the upper part of the communication space 61. In this embodiment, the elastic means of the present invention is located at the upper part of the communication space 61, and the elastic means and the insole are in direct contact with each other in order to make the sole of the wearer feel the tactile sensation of the elastic means. It is configured. On the other hand, the upper portion of the communication space 61 may be closed with the elastic means inserted so that the elastic means and the insole 20 'can be structurally blocked.

  A step is formed in the communication space 61 so that a receiving plate 63 of an auxiliary rod 62, which will be described later, can be locked, and an auxiliary rod 62 is inserted in the lower portion of the communication space 61 so as to be able to appear and retract on the lower surface of the footwear heel. . At the upper end of the auxiliary rod 62, a receiving plate 63 is formed wider than the auxiliary rod and is locked to a step. The elastic means according to the present invention is located above the receiving plate 63 of the auxiliary rod 62.

  The elastic means includes an elastic cap 41 formed of a material having higher elasticity than the heel 60, and a conical spring 43 provided in a conical mounting groove 42 formed in the elastic cap 41. It is to be prepared.

  On the other hand, the insole 20 'is preferably provided with an air hole so that air in the communication space 61 can flow. Further, since the insole 20 'needs to be fixed to such an extent that it can receive the elastic force of the elastic means, an adhesive or the like is applied to the upper part of the outsole 50' and the heel 60 'of the footwear while covering the elastic means. It is preferable to use and fix firmly.

  When the wearer wears the footwear according to the embodiment and walks, the auxiliary scissors 62 come into contact with the ground and are depressed inside, and when the auxiliary scissors 62 are depressed inside, the auxiliary scissors 62 and the soles of the wearers In the meantime, the elastic means of the present invention is compressed. When the auxiliary rod 62 is separated from the ground, the compressed elastic means pushes out the auxiliary rod 62, and the auxiliary rod 62 is further protruded to the outside. When walking, the impact of walking can be absorbed by the elastic action of the elastic means together with the appearance of the auxiliary rod 62 as described above.

  On the other hand, FIG. 7 shows a structure in which the elastic means according to the present invention is inserted into a high heel shoe. The high heel shoe shown in FIG. 7 differs from the men's shoe of FIG. 6 only in the type of footwear, and the structure and operation thereof are substantially the same as the structure and operation of FIG. 6 described above.

  The above-described embodiment is merely one embodiment of the technical idea of the present invention, and it is possible for a normal engineer in the industry to perform other modified embodiments within the technical idea of the present invention. Needless to say.

  As described above, the present invention is provided with an elastic means in which a block-shaped elastic body and a conical spring are coupled to the lower part of the footwear, thereby improving the elastic performance and facilitating the production of the footwear. Therefore, it can be used widely in the production of footwear.

10: crust,
20, 20 ': insole,
22, 32, 42: mounting groove,
30: Midsole,
31: Space part,
34: Air flow path,
36: air hole,
40: elastic means,
41: elastic cap,
43: elastic spring,
50, 50 ': outsole,
51: Transparent window,
52: Connecting groove,
60: Heels
61: Communication space,
62: auxiliary rod
63: backing plate,

Claims (5)

In footwear with elastic means at the bottom,
The elastic means is
An elastic cap (41) formed of a material having higher elasticity than the peripheral portion to be installed;
A conical mounting groove (42) formed in the elastic cap (41);
It is formed separately from the elastic cap (41), is formed in the same conical shape as the conical shape of the mounting groove (42), and is installed in the mounting groove (42) of the elastic cap (41). A spring (43);
Footwear characterized by comprising. The footwear is footwear having a heel (60);
A space (61) is formed in the heel (60), and an auxiliary rod (62) that protrudes and appears outside the bottom surface of the heel is inserted into the space (61).
The footwear according to claim 1, wherein the elastic means to be compressed by the auxiliary rod (62) is located on the upper portion of the auxiliary rod (62). In footwear with elastic means at the bottom,
The elastic means is
A conical mounting groove (22, 32) formed in one of the insole, midsole and outsole of the footwear;
A spring (43) formed in the same conical shape as the conical shape of the above-described placement groove so as to be placed in the placement groove (22, 32);
Footwear characterized by comprising.   4. The air passage (34) connecting the interior of the footwear where the foot is located or the outside of the footwear and the placement groove is formed in the lower part of the footwear. Footwear described in.   The footwear according to any one of claims 1 to 3, further comprising a transparent window (51) through which a spring in the placement groove can be observed from the outside of the footwear.

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