JPS6116704A - Perfect water-proof footwear upper material and quantitativeemitting apparatus of adhesive used therein - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (1) Industrial Application Field The present invention is applicable to footwear, particularly athletic shoes, golf shoes, marathon shoes, mountain climbing shoes, casual shoes, business shoes, etc., and is a material constituting these footwear. This invention relates to a completely waterproof upper member and a device for dispensing a fixed amount of adhesive used therein.

(2) Conventional technology and its problems Footwear generally consists of a sole and an upper.

The upper member is obtained by sewing various members such as a decorative member, a collar member, a tongue member, and a waist member.

If left as is, the sewn upper members have the disadvantage that water can enter the interior through the sewn portions, no matter how waterproof the fabric used for each member is. In order to prevent this drawback, it is naturally necessary to waterproof the sewn parts.

This is especially true when it comes to footwear used even in the rain, such as golf shoes, athletic shoes, and mountain climbing shoes.

Until now, in order to waterproof the sewn portion of the upper member, an operator had to manually apply a waterproof layer or waterproof adhesive from the back side of the sewn portion. Therefore, not only is this work very time consuming, but the differences in the work of individual workers have a great effect on the waterproofing.

(4) Means for solving the problem The inventor of the present invention has taken the above points into account and has made it easy to attach the sewn part of the upper member for complete waterproofing.
This invention was developed as a result of studies to implement the process without causing variations in the finished state.

That is, the present invention applies adhesive quickly and evenly from the back side to the sewn part of the upper member, which is one of the materials constituting the footwear, and also applies the adhesive to the holes in the seams of this sewn part. To provide an adhesive glue metering dispensing device that allows the glue to penetrate at a fixed rate, and an upper member made completely waterproof by the device.

(5) Embodiment and its operation Hereinafter, an embodiment and operation of the apparatus of the present invention will be described with reference to the drawings.

In the drawings, reference numeral 1 denotes an arm having the same shape as the one on the sewing machine. Therefore, one end 2 of this arm 1 is fixed to the table 4, and the other end 3 has a space from the table 4.

Reference numeral 5 denotes a support plate attached to the other end 3 of the arm 1, and an adhesive paste dispenser 6 with a nozzle 7 removably attached to the tip is screwed onto the rear side of the other end 3 of the arm 1 through the support plate 5. It is fixed.

The tip of the tip nozzle 7 of this adhesive paste dispenser 6 has a second tip.
#i in table 1 as shown in the partially enlarged view in the figure.
T! The feed dog mechanism 8 is located on the feed dog mechanism 8, and the feed dog mechanism 8
A presser foot 17 is disposed above the arm 1 and the lower part of @3 with a slight gap therebetween.

Reference numeral 9 denotes an adhesive storage tank fixed on a tank stand 10 on the table 1, and the tank and the adhesive dispenser 6 are connected by a hose 11, so that the adhesive in the tank 9 is discharged from the tank stand 10. Now it is sent to vessel 6 J＞su, again 1
Reference numeral 2 denotes a pressure-feeding hose, which is pressurized and fed by a command from the roller 13 when sending the glue in contact with the storage tank 9 to the discharger 6. . Similarly, the small spout 14 is a pressure-feeding hose that connects the controller 13 and the dispensing device 6, and the valve inside the dispensing device 6 opens and closes in response to a pressure command from the controller 13/J, and the adhesive is sent to the nozzle 7.
sent to.

In this way, the controller 13 is used to adjust the pressure to open and close the valve in the discharger when the adhesive is forced to be fed from the adhesive storage tank 9 to the discharger 6, and when the adhesive is discharged from the nozzle 7. In addition, the amount of glue discharged from the apex of the nozzle 7 and the feed speed by the feed teeth 8 of the upper member to which the discharged glue is applied can be adjusted.

Next, we will explain how to apply glue to the back of the sewn part of the upper member using the adhesive dispenser having the above-described structure. Place it so that it is in front of you, and position the tip of the nozzle 7 at the end of the sewn part. Then push button 16. After that, when the treadle 15 is pressed, the sewing part begins to move forward by the feed dog 4M8 and the presser foot 17 by an operating mechanism similar to that of a sewing machine (not shown), and at the same time, the adhesive paste discharger 6 The glue inside is expelled and rubbed over the sewn part as it moves forward at a constant speed, spreading the glue evenly over the part. At this time, the sewing part moves with moderate vibration due to the driven feed dog mechanism, so the glue from the nozzle is not only applied to the sewing part, but also penetrates into the holes in the seam and hardens. The resulting adhesive film provides a more complete waterproof layer.

At this time, the amount of glue discharged from the nozzle tip relative to the feeding speed of the upper member can be determined by storing the nozzle diameter, feeding speed, glue viscosity, etc. in advance in the controller 13, so that the appropriate amount can be determined under appropriate pressure conditions. It can be applied onto the sewn parts.

However, the work of applying adhesive to the sewn parts of the upper member using this device is an intermittent work using the above-mentioned tread.
Although not shown, it is also possible to operate the motor automatically (1), and even in that case, the forward speed on the feed dog mechanism of the instep member and each time the glue is discharged, Adjustments such as the degree of pressurization can be made in the same manner as in the intermittent type by storing the information in the controller.

Furthermore, it is also possible to change the diameter of the nozzle itself.

It is also necessary that the tip of the nozzle be rounded so as not to damage the middle member when it comes into contact with the running upper member.

Therefore, the adhesive used in the present invention is suitably a quick-drying adhesive such as urethane-based, silicone-based, or fluorine-based synthetic resin or synthetic rubber.

When using a moisture-curing type of adhesive, it is necessary to apply the adhesive inside the tank, the discharge device, and even the hose to prevent it from curing inside the tank or at the tip of the nozzle due to moisture. It is sufficient if the container is kept full or an inert gas that does not react with the glue, such as nitrogen gas, is introduced. In addition, the nozzle tip may be covered with a lid immediately after use to prevent it from coming into contact with air, or it may be immersed in a solvent.

In addition, in this invention, the feed dog mechanism built into the table that advances the instep member when applying adhesive to the back side of the sewn portion of the instep member is a known feed dog mechanism that functions similarly to the feed dog mechanism in a sewing machine. .

(6) Effects As described above, if the device of the present invention is used to glue the sewn portion of the upper member, the forward speed of the upper member and the amount of glue discharged from the nozzle tip are adjusted by the controller to achieve an appropriate level. Since the same amount is applied to the sewing area, there are no defects such as uneven application or unevenness in the applied glue that was previously applied by hand, and as a result of improving work efficiency, production costs can be reduced. It also greatly contributes to the decline.

In addition, this adhesive glue dispensing device can be used to apply adhesive glue to the sewn parts of the above-mentioned footwear upper members for complete waterproofing.
Its use is not limited to raincoats and outdoor wear (for example, ski wear, mountain climbing/sharing, golf wear, etc.) that were previously attached with waterproof tape.
It can also be applied to sewing parts such as a),
This eliminates the drawback of waterproof tape, which tends to peel off easily, and makes it possible to create a completely waterproof product.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the failure of the adhesive glue dispensing device of the present invention, and FIG. 2 is a partially enlarged view of the main parts. 1... Arm 2... One end of arm 3...
Other end of arm 4...Table 5...Support plate
6... Adhesive glue dispenser 7... Nozzle 8... Feed dog mechanism 9... Tank 10... Tank stand 11... Hose 12... Pressure feed bow 13...
Controller 14...Pressure hose 15...Tread plate 16...Push button 17...Presser foot Fig. 1 Fig. 2

Claims (2)

[Claims] (1) In an upper member for footwear having a sewn portion, a fixed amount of adhesive is uniformly applied to the sewn portion from the back side using an adhesive metering device, and the adhesive is applied evenly to the holes in the seams of the sewn portion. An instep member for footwear characterized by being completely waterproof by impregnating the same. (2) Attach a support plate to the other end of the arm with one end fixed on the table, and use the support plate to attach the adhesive glue dispenser to the feed dog mechanism where the tip nozzle of the dispenser is built into the table. At the same time, the adhesive paste dispensing device and the adhesive glue storage tank mounted on the table are connected by a tube, and the controller mounted on the table, the adhesive glue storage tank, the adhesive glue dispensing device and 1. A fixed-quantity discharge device for adhesive glue, characterized in that the discharge amount of adhesive glue and the operation of the feed dogs can be adjusted by interlocking the feed dogs.