Cross Tongue Shoe Design -- Straight Tongue Rear Tongue Shoe.

1. finished product graph analysis

The male tongue shoe with pverse structure is the simplest type of shoe with straight mouth and tongue type, as shown in figure 1-5-3.

 

(1) structural tongue shoes are used to facilitate the wearing of the straight back. Therefore, the location of the mouth should not be too far behind, but it can not pass the metatarsophalangeal. OO'is generally 15mm.

The shoe tongue of the man's shoes is broken off from the front part, and belongs to the pverse tongue type shoe structure.

Since the straight tongue type tongue shoe is relatively simple, it is convenient to use the positioning and picking method.

In the past design, the introduction of counterpart pick up, each has its strong points.

(2) the last type is designed for the use of the tongue shoe special for the male tongue shoe.

As the ability of the tongue shoe to hold the foot is to rely on the entrance of the shoe, the tongue shoe last is thin and half shape (3. 5mm), and the body shape on both sides of the shoe mouth is thin.

(3) the main parts of the components are front, tongue and back, and cross arm and safety leather parts.

There are five kinds and six pieces altogether.

The tongue of the shoe belongs to the bright tongue, though it is in the rear position, but it is closely connected with the front gang and belongs to the front part.

The cross arm has the function of connection and reinforcement, as well as important decorative function.

(4) the main parts of the splicing are the front press, the front shoe and the front shoe, and the cross arm is pressed on the break position, and the safety leather is pressed on the middle seam of the back arc.

Design the former Gang to start the workforce.

(5) the special requirement of the tongue type shoe is the change of the tongue and the change of the cross arm.

The cross arm of this shoe is of upper, narrow and lower width.

The width is 18 to 20mm, and the width is 28 to 30mm.

The shoe tongue of this shoe is round and matched with the simple shoes.

The insurance cover is a general rectangular leather.

2. structure design drawing

Draw the outline of the half panel, connect 4 basic control lines, and use the compasses to cut off the corners.

On the OQ line, move from O to 15mm, the gate width O'.

O'is not only the width of the mouth, but also the center of the picking center, as shown in figure 1-5-4.

 

(1) the front team has designed the 0'point as the vertical line of the midline VE, and got the front line V "H1".

Take the O'point as the center of the circle and V "long as the radius to make a large arc, and connect the angle VO'V to get the same quantity instead of the angle.

The equivalent size instead of the angle is cut on the big arc after V, and the V2 point is determined. The "V" O'V2 is the AoV2 connecting the J point and the V2 point to make the midline AoV2 of the front line, and the perpendicular line of the AoV2 line through V2 point. Then it goes straight to the O'point, that is, using the arc to control the contour of the door.

The front contour is obtained in the range of Ao to V2-0'to H1 to Ao.

(2) design of the back and tongue.

After helping: the design of the back frame is simple when the hand is stretched, the OQ line is the height line of the back, the rear arc and the bottom line are not changed, and the O and Hi line is the front end line.

When using the machine, you need to make the difference between the inside and outside of the shoe. You can connect the shoe outline from the 2mm point on the P'point.

The structure of this treatment is that the tongue must have the difference between the inside and outside.

Tongue: the length of the tongue is usually located in the 2/3 position of VE length, locating the E'point, passing the E' point as the vertical line of the back midline, and then passing through the 0'point as the vertical line of the vertical line.

The outline of the round tongue is designed in the rectangle.

Pay attention to the difference between the inside and outside of the tongue.

Also notice that the front end line of the shoe tongue is controlled by the V "o'line", which is different from the front shoe V201 shoe line.

The length of the tongue is not absolute, and the design must be coordinated and beautiful.

The length of some shoe tongue is 1 / 2, 1 / 3 of V'E and even alignment with the cross arm.

The ratio of tongue length should be handled flexibly.

(3) design of cross arm and safety skin.

Insurance cover: it is designed to be a rectangular insurance leather.

It is about 25mm long and about 18mm wide.

Cross arm: as the cross arm is a part above the component, the width allowance of 3mm should be set aside.

The upper end takes the WHi line as the center line, and the VE line 3mm as the parallel line, and the two sides are intercepted with a width of 9 to lOmm on the cross arm.

The lower end should be based on the 0Q line and parallel lines at 12mm at 0 points, with 14 to 15mm width on both sides.

Under the difference between the inside and outside of the tongue, the cross arm should also make the difference between the inside and outside.

The key to the design of the cross arm is to find four vertices. The contour of the cross arm is preferably straight line. After taking off the template, it will be processed into the required arc shape. See figure 1-5-5.

 

When designing the height of the cross arm, pay attention to the distance between the upper end and the -VE line about 3mm, otherwise the tension will be resisted when it is stretched, so it is not easy to stretch the back of the foot flat.

The lower end of the cross arm is about 12mm below the OQ line, and is parallel to the OQ line, so that the cross arm can be upright.

(4) the bottom port is also treated according to the requirements of 14mm, 15mm, 16mm and 17mn-.

Then distinguish the outline of the mouth.

(5) prepare the template and prepare the scribing board first. See figure l-5-6.

 

 

The solid line in the picture is the basic template contour line, and the dashed line is the amount of processing needed to produce the opening template.

If you try to find out that the tongue is not sticking to the last surface, it is a "praxis". The front and the lower ends of the tongue should be shortened by 1 to 2mm. This problem often occurs when designing synthetic leather shoes.

Pay attention to the back, the tongue and the cross arm of the opening die.

If the leather is made, the front part needs no hem, and the lower arm does not need to fold.

The design of the shoe is made of two segment structure, and the edge of the tongue and the back of the shoe should be left to the edge. See Figure 1 - 5-8.

 

The tongue type shoe lining is the first one to be produced. The design method and technical parameter requirement are the same as those of the ear type shoes, and are also designed on the basic template contour.

In front of the Gang: Ao point drop 2mm, connected to the gate into 6 to 7mm.

If you use a machine to stretch, there must be a difference between the inside and outside.

Inside the shoe tongue: the front end is loaded with 8mm and the remaining three sides are punching 3mm.

In the back part: the front end is loaded with 8mm stubble quantity, the top is added and 3mm punching edge quantity, the rear arc is in accordance with - 2mm, - 3mm, - 5mm volume, bottom mouth receives 6 ~ 7mm.

Cross arm: cross arm without shoe lining should be distinguished according to material.

When leather materials with better strength are used, they can be used without lining.

If you use the lining, the upper and lower ends of the cross section of the finished product will have traces of the car line, and now it is less used. Then the punching edge of the 3mm should be added to the edge.

The amount of 8mm stubble is added to the front of the tongue, and the amount of 3mm punching is added to the rest.

After designing the straight tongue, the female tongue shoe should be selected with a female prime last.

The design method and steps are the same as the design of men's shoes.

Because the lines of women's shoes are different from men's shoes, the shoe can be designed as convex arcs, thereby eliminating the difference between the inside and outside of the shoe tongue.

One

Finished product drawing

As shown in figure 1-5-9, the cross arm design of women's shoes is of the same wide type. The lower foot is round and needs hem.

The tongue is sharp and looks beautiful.

 

2. structure design drawing

The main points of the design are as follows:

(1) find the O'point on the OQ line and take about OO'=10mm.

Go through the O'point to make the vertical line of the VE line, hand it to V "point", and hand it to H1 at the bottom.

(2) over V, "point for positioning, pick up angle, so that" V "O'V2= VO'V.

Connect the front middle line AoV2, and connect the exit door contour to get the front part.

(3) take the VE length 2/3 to design the outline of shoe tongue.

(4) find the P'point, design the arc shoe line in the OO line range, and make the Huai line higher than the outer line, forming the difference between the inside and outside.

At this time, a O'point is shared.

(5) design the upper end of the cross arm to be parallel to the VE line 3mm, and the lower end from the OO line 12mm as the parallel line. The upper and lower sides take 16 to 18mm, and the lower foot is circular.

(6) the rear reinforcement bar takes the rectangle, 20mmX16mm.

Finally, make the difference between the stretch and the inside and outside, see 1-5-10.

 

Other methods of preparing scribing boards and making three patterns are the same.

The model behind shoes is special, see Figure 1 - 5-11.

 

Through the above two shoes design, we can understand the general rule of designing tongue type shoes.

When designing the straight back support, the width of the door is taken from the OQ line, 00'=10 to 15mm.