Design Of Tongue Back Shoe With Elastic Opening

The shoe is a kind of shoe that covers the shoe with a cover, and the amount of hem is added to the shoe. Due to the disconnection of the surround strip and the shoe cover, the method of designing the circumference and the shoe cover respectively by using the respective back midline can solve the problem of taking off simultaneously. By using the positioning and picking line, the design of the surround strip is designed, and the shoe cover is designed by using the opposite position take off line.

L. finished product graph analysis
The finished product is shown in figure 2-1-11.

(1) the structure is a transected tongue type shoe structure, and the dark door is about OO'=25mm. The design pattern is: the loose tongue mouth helps the tongue type shoe structure design ten must cover the design.

(2) male tongue last type for last type.

(3) the components include six kinds of six pieces, such as round strip, shoe cover, shoe tongue, cross arm, rear heel and rubber band.

(4) the inlaid foundation structure is inserted with the back tongue shoe with the elastic opening, and the cover is inlaid with a shoe cover.

(5) the special request must first confirm the J'point position on the last surface through the J point, then prepare the duplicate board inside and outside with the J' point as the front end point.
The problem of the design of the cover is also solved at the same time, which is a relatively simple method to design the shoe. The specific steps are as follows:
The first step: on the basis of the half panel contour line, first make the back line of the shoe cover. Because the tongue and shoe cover are broken, the back center line of the shoe cover is designed on the counterpart picking line, as shown in Fig. 2-1-12.

Find the O'point and make the vertical line of the midline to determine the tongue position V "point." Then the 0 point is the center of the circle, the radius of OJ'is circular arc, the V point is the center of the circle, the radius of J'v is circular arc, and the two arc intersects the J1 point, which is the front point of the shoe cover design. Connect the J1V "line to the back of the shoe cover."

The second step is to design the outline of the shoe cover, use the copy board to draw the outline of the shoe cover, and use the hand drawn method to connect to the O'point. O point is just a reference point, not necessarily to go through, to take the shape of shoes, straighten, stretch, good-looking prevail.

After designing the outer side, use the same method to design the contour line of the shoe cover with the duplicating board.

The third step is to design the contour design of the surround strip. Use the back middle curve J'V of the half panel to draw the front contour line of the duplicate panel first, and the back section should draw the outline line of the shoe cover template to reach the 0'point. After the outer contour is determined, the contour line of the girth is painted, and the difference between the inside and outside of the fence is different from that of the shoe cover.

After these three steps, the design of the enclosure is finished, and the other part is designed behind. So do you take the corner? Do you take the craft? The two contents were completed on both lines.

When you join the gang, you can pull the surrounding bar down and insert it into the shoe cover. At this time, the surrounding bar is lifted up, indicating that there has been a pick up corner. If the flat is compared with the shoe cover, there will be a crescent shaped notch angle between the shoe cover and the surround strip, which indicates that the shoe cover is short and the length of the fence is long, and the lower mouth of the shoe cover can ensure the normal operation of the sedan insertion when inserting. Note that the size of the notch is determined by the bending of the last surface. The replica board is made two times for the accuracy of the notch angle. The size of the notch determines the degree of curvature when the saddle surface is restored. At present, there is no need for us to carry out quantitative discussions, as long as the model is pasted last.

2. structure design drawing
 
As shown in Figure 2 -1-13, take the 00'=25mm, and make the front and back dividing line V "Of". Make a pair of take off line J'V ", design the outline of the shoe cover inside and outside, and connect it to 0'point.

On the J'V curve, we design the contour line of the Wai Wai Wai and connect it to 0'point. Pay attention to the difference between the shoe cover and the inside and outside of the fence.
The design of other parts is the same as that of the original elastic tongue.

3. sample preparation
The method of making templates is also the same. The segmentation of the cover will not affect the change of the shoe in general.
The drawing board is shown in figure 2-1-14.

The inside and outside Wai Wai bar in the structural chart coincided with the shoe cover line and can be represented by a notch. When the online bar changes are large, it can be represented by tie points.
The basic template is shown in figure 2-1-15.

The amount of processing added to the dashed pattern in the diagram. Put the hem on the surround and press the stubble on the shoe cover.

The shoe model is the same as the front.
 
In this case, men's shoes are designed. If women's shoes are designed to change the shoe last and master the style of women's shoes, the design method and design process are the same. Note that the replica board and the half panel are all targeted. A shoe last for a board, if you change the shoe last, you must reattach the last pick. Under the condition that the last shape is the same, the replica board and the half panel can be used.

In the book "design principle of leather shoes like structure". Once introduced a method of "inside and outside Huai with scissors dug", at that time, take the positioning seating and take the craft sedan separately. After years of practice, it is more simple and accurate to use the double line pick up.