JPS6232402Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a slush shoe with an anti-slip device in which an anti-slip mechanism can be made to appear or be buried at will.

Traditionally, shoes made using the slush method were mainly made of heat-softening synthetic resins such as vinyl chloride resin, so they were essentially affected by temperature; Since it is advantageous in terms of manufacturing to manufacture the sole part as one piece, the sole part is also integrally molded from synthetic resin. For this reason, the soles of shoes manufactured by the slush method have the drawback of being easy to slip on snow, especially in areas where it is snowy and cold in winter.
Japanese Patent Publication No. 47-28221 discloses a method for manufacturing non-slip slush shoes, but since the tip of the non-slip metal fitting is always protruding from the ground surface of the sole, the anti-slip effect is sufficiently exerted on snowy roads. However, on normal road surfaces, the tips of the anti-slip fittings hit the road surface, not only damaging the road surface, but also making the wearer extremely uncomfortable.

The slush shoes with anti-slip devices of the present invention eliminate the above drawbacks, and when walking on frozen or snowy roads, the claws of the anti-slip devices attached to the heel of the sole protrude from the ground surface of the heel. This relates to slush shoes with anti-slip devices that have a structure in which the claws of the anti-slip device can be stored in the front recess of the heel part of the sole when the anti-slip effect is not required. It is.

The present invention will be explained in detail with reference to the drawings.

The drawings show an embodiment of the present invention.
The figures relate to the anti-slip device used in the present invention, A is a plan view and B is a side view. Figure 2 is a fixing plate for mounting the anti-slip device, A is a side view and B is a side view. A plan view is shown. Figure 3 is a side cross-sectional view of the anti-slip device attached with the claw protruding from the heel contact surface of the shoe when anti-slip is required, and Figure 4 is the anti-slip part when anti-slip is not required. Fig. 5 is a side cross-sectional view of the heel of the shoe in a state where it is accommodated in the front side of the heel part, and Fig. 5 shows the heel of the shoe when anti-slip is required in another embodiment in which a connecting part with a U-shaped cross section is used instead of the curved connecting part. Figure 6 is a side cross-sectional view showing the anti-slip device attached with its claws protruding from the ground surface, and shows the process of manufacturing the invented product; A shows the fixing plate installed in the shoe mold. B is a sectional view of the heel portion of the slush shoe after the shoe has been molded.

In the figure, 1 is a non-slip device, 2 is a non-slip portion, 3 is a holding plate of the non-slip device 1, 4 is a fixing hole, 5 is a spring plate, and the flat base at one end of the non-slip portion 2 is The holding plate 3 is sandwiched between a flat holding part at the center and a flat spring plate 5, and is held so that the anti-slip part 2 can be turned over approximately 180 degrees as required. Reference numeral 6 denotes a fixing plate, which has one to three holes 7 on each end side for fixing the anti-slip tool 1, and a connecting portion 8 bent into a curved shape. 9 is passed through the fixing hole 4 of the anti-slip tool 1 and inserted into the hole 7 of the fixing plate 6.
This fixture is inserted into the heel part 10 to fix the anti-slip fixture 1 to the concave part 12 of the heel part 10. 10 is a heel portion of the shoe, 11 is a contact surface of the heel portion 10, 12 is a concave portion of the heel portion 11 to which the anti-slip device 1 is to be fixed;
13 is the upper part of the shoe, and 14 is the sole part of the shoe. The heel part 10, the upper part 13, and the sole part 14 are integrally molded from a slush shoe material. 15 is a heel core of the heel portion 10. Reference numeral 16 denotes a mold for manufacturing slush shoes, including a protrusion 17 for installing the fixing plate 6 in the heel of the mold, and a mold protrusion corresponding to the recess 12 to which the anti-slip device is to be fixed. 1
It has 8.

The anti-slip tool 1 used in the present invention has no registered design.
Like the anti-slip device disclosed in No. 476297 (Figure 1) or Design Registration No. 548307 (not shown), the anti-slip part 2 has a claw 2a that can be reversed (approximately 180 degrees). As shown in FIG. 3, FIG. 4, FIG. 5, and FIG. 9 is inserted to fix the anti-slip tool 1 to the fixing plate 6. As for the fixing method, either a completely fixing type caulking rivet is used or a removable type screw or bolt is used.

The tip of the claw 2a of the anti-slip device 1 of the slush shoe with anti-slip device of the present invention does not always protrude from the ground surface 11 of the heel portion 10, but when anti-slip is required, the tip is shown in FIGS. 3 and 5. As shown in the figure, the claw 2a of the anti-slip part 2 is made to protrude from the ground contact surface 11 of the heel part 10, so that when walking on a slippery road surface such as a frozen road surface or a snow-covered road surface, the tip of the claw 2a digs into the road surface. to prevent slipping. In addition, when walking on a normal road surface, that is, when no anti-slip is required, the anti-slip part 2 is almost completely closed as shown in Figure 4.
By turning the claw 2a 180 degrees and moving it to the concave part 12 on the front side of the heel part 10, the tip of the claw 2a will not protrude from the ground surface 11, so it will not come into contact with the road surface. It has the advantage that it can be used without damaging the surface.

The fixed plate 6 has a curved connecting portion 8 as shown in the figure.
However, it has a structure with one or more fixing holes 7 on each end side, and the other parts are buried leaving both ends as shown in Fig. 3, or the entire heel part is buried as shown in Fig. 5. Since the connecting portion 8 is completely and firmly buried within the heel portion 10, the anti-slip device 1 of the slush shoes with anti-slip device of the present invention is embedded in the heel portion 10 through the fixing plate 6. Since the anti-slip device 1 is attached directly to the heel portion of a normal shoe made of slush shoe material, it will not fall off during use.

The shape of the bent connecting portion 8 of the fixed plate 6 may be a curved shape as shown in FIG. 2, a bent shape as shown in FIG. That's fine. Note that holes 1 to 5 other than the fixing hole 7 in the connecting part 8
By providing holes of appropriate shapes passing through the front and back surfaces, these holes are also filled with shoe material, which is more effective in preventing the fixing plate 6 from falling off from the heel portion 10.

Furthermore, by making the distance between the holes 7 provided at both ends of the fixing plate 6 slightly wider or narrower than the distance between the protrusions 17 provided in the heel of the mold 16, the fixing plate 6 When disposed on the protrusion 17 in the heel of the mold 16, it will not fall off from the protrusion 17, and even when the shoe material is injected into the mold 16, it will not move due to the pressure of the injection liquid.

In addition, as shown in FIG. Since it has a structure in which it is sandwiched between the two parts, the anti-slip part 2 can be reversed and is held very firmly.

Note that when the shoe is molded using the slush method, the heel portion 10 is molded to have an inner bulge, so the inner bulge portion must be filled with the same material as the shoe material, or filled with a shoe body material such as foamed polyurethane material. are different materials (heel core 1 in Fig. 5).
5) may be filled.

To manufacture the slush shoes with anti-slip devices according to the present invention, as shown in FIG. Protrusion 17 of mold 16
As shown in FIG. 6, the fixing device 6 is arranged so as to fit into the hole 7, and a sol solution containing vinyl chloride resin paste is injected into the inside S of the mold 16, and the fixing device 6 is also covered with the sol solution. A heel portion 10, a body portion 13, and a body portion 13 having a predetermined thickness are embedded, and then the mold 16 is heated to undergo a gelling treatment, and then a gelled resin layer is formed on the inner surface of the mold 16 by a so-called slush method. A gelled resin layer of the bottom part 14 is created.

Next, after discharging the ungelled sol liquid in the mold 16, the mold 1 in which the gelled resin layer and the fixture 6 are embedded
6 is heated to melt the gelled resin layers of the heel part 10, body part 13, and bottom part 14 in the mold 16, and then the heel core 1 is placed in the inner hollow part of the heel part 10.
After injecting and filling a predetermined amount of material No. 5 and reheating or discharging the ungelled sol liquid, the heel core material No. 15 is injected and filled into the inner hollow part of the heel portion 10, and then heated to melt the gel inside the mold. After the gelled resin layer is melted, it is cooled to solidify the gelled resin layer (including the heel core) in the mold 16 in which the fixing device 6 is embedded in the heel portion 10, thereby forming an anti-slip device. A heel portion 1 having a concave portion 12 and a ground surface 11 to which the heel portion 1 can be fixed.
0. The slush shoe (FIG. 6B) on which the torso 13 and sole 14 have been formed is removed from the mold 16. At this time, since the fixture 6 is buried in the heel part 10, when the slush shoe is pulled out from the mold 16, the fixture 6 is pulled out simultaneously with the shoe while being fixed to the heel part 10 of the shoe, as shown in FIG. Desired shoes like B can be obtained.

Next, as shown in FIGS. 3 and 5, a hole 7 for fixing the fixture 6 provided in the concave portion 12 of the heel portion 10 and a hole 7 for fixing the anti-slip device 1 are inserted into the recess 19 provided by the protrusion 17. After assembling the retaining plate 3 and the spring plate 5 so that the non-slip part 2 can be reversed through the fixing hole 4, the fixing tool 9 is inserted into the fixing plate 6 through the fixing hole 4.
and the anti-slip device 1 is attached to the concave portion 12 of the heel portion 10. Thereafter, the shoe is finished by conventional methods such as attaching an insole, attaching a lining cloth, and sewing a shoe opening to the shoe to produce a product.

Furthermore, the concave part 12 of the heel part 10 is inclined, and the fixture 6 is also buried in the heel part 10 correspondingly, thereby obtaining a slush shoe with a rotary anti-slip device disclosed in Japanese Utility Model Publication No. 54-8910. I can do it.

As described in detail above, in the slush shoe with an anti-slip device according to the present invention, the anti-slip device 1 is completely and firmly attached to the concave portion 12 of the heel portion 10 by the fixing plate 6 embedded in the heel portion 10. Moreover, in this anti-slip tool 1, the flat base provided at one end of the anti-slip part 2 is sandwiched between the flat pressing part at the center of the holding plate 3 and the flat spring plate 5, making it strong. By inverting the anti-slip portion 2, the claw 2a is held on the ground surface 11 of the heel portion 10.
The front concave part 1 of the heel part 10
It can be accommodated in 2.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention.
The figure shows a non-slip device used in the present invention, and A shows a plan view and B shows a side view. Figure 2 shows a fixing plate for mounting the non-slip device, A shows a side view and B shows a plan view. . Figure 3 is a side sectional view of the anti-slip device attached with the claw protruding from the ground surface of the heel of the shoe when anti-slip is required, and Figure 4 is a side sectional view of the anti-slip device attached to the heel when anti-slip is required. FIG. 5 is a side cross-sectional view of the state in which the anti-slip device is housed in the front recess, and FIG. 5 shows the side where the anti-slip device is attached in a state where the claw of the anti-slip device protrudes from the ground surface of the heel of the shoe when anti-slip is required in another embodiment. 6 shows the process of manufacturing the product of the present invention, and A is a sectional view with the fixing plate installed in the shoe mold before resin injection;
B is a sectional view of the heel portion of the slush shoe after the shoe has been molded. 1... Anti-slip tool, 2... Anti-slip part, 2a...
...Claw, 3... Holding plate, 4... Fixing hole, 5... Spring plate, 6... Fixing plate, 7... Hole, 8... Connecting part, 9... Fixing tool, 10... Heel part , 11...
Ground contact surface, 12... Concave portion, 13... Body, 14...
...Bottom, 15...Heel core, 16...Mold, 17
... Protrusion, 18 ... Convex part of the mold.

Claims (1)

[Claims for Utility Model Registration] 1. A fixing plate 6 having 1 to 3 fixing holes 7 on each end side is fixed to a curved connecting portion 8, and a shoe upper part 13 and a shoe sole part 14 are made by the slushing method.
The anti-slip part 2 is embedded in the heel part 10 by integral molding, and is provided between the flat spring plate 5 and the flat pressing part at the center of the pressing plate 3 superimposed on the spring plate 5. The anti-slip tool 1, whose flat plate base is reversibly clamped, aligns the fixing holes 4 at both ends of the overlapping portion with the fixing holes 7 of the fixing plate 6, and the fixing tool 9 is inserted and fitted. The claws 2a of the non-slip part 2 are fitted into the concave part 12 of the heel part 10 by reversing the non-slip part 2.
A slush shoe with an anti-slip device that can be protruded from a heel part 10 or housed in a recessed part 12 on the front side of a heel part 10. 2. A slush shoe with an anti-slip device according to claim 1, wherein the connecting portion 8 has a bent shape. 3. A slush shoe with an anti-slip device according to claim 1, wherein the connecting portion 8 has a meandering shape. 4. A slush shoe with an anti-slip device as set forth in claim 1 of the registered utility model claim, wherein the connecting portion 8 has a square shape. 5. The slush shoe with an anti-slip device according to any one of claims 1 to 4 of the claims 1 to 4, wherein the connecting part 8 is a connecting part having 1 to 5 front and back through holes. .