Auxiliary device for drawing center line of heel

Abstract

The utility model discloses an auxiliary device for drawing a center line of a heel, which comprises a mounting seat, one side of the mounting seat is provided with a reference seat used for being attached to a sole, the other side of the mounting seat is provided with a graduated scale used for drawing the center line of the heel, the surface of the graduated scale is provided with scales along the length direction, and the graduated scale is provided with a groove. One side edge of the graduated scale is aligned with the center line of the mounting seat, and the graduated scale is perpendicular to the reference seat. The shoe heel center line drawing device facilitates drawing of the shoe heel center line and improves the qualification rate of shoe manufacturing.

Description

Technical Field

[0001] The utility model relates to the technical field of shoemaking, in particular to a heel centerline drawing auxiliary device. Background Art

[0002] In the prior art, the production of handmade leather shoes typically involves using a shoe last, which serves as the shoe's base. As the mold that forms the shoe, the shoe last not only determines the shoe's shape and style, but also its fit and foot protection. Therefore, the shoe last design must be based on the foot's shape, but it cannot be identical to the foot's shape. This is because the foot's shape, size, and stresses vary when it's at rest or in motion. Furthermore, shoe types, styles, processing techniques, raw material properties, and wearing environments and conditions vary. Therefore, the shape and dimensions of each part of the shoe last cannot be completely identical to the foot's shape. Therefore, modern shoe last design involves multiple disciplines and requires a high level of craftsmanship and experience. While there are numerous methods for making shoe lasts in the prior art, most are developed through the maker's long-term experience and lack standardized specifications. Drawing the heel centerline is crucial, and traditional methods rely primarily on visual estimation or the use of a measuring tape. This often results in positional and dimensional deviations, resulting in dimensional defects in the finished leather shoes, resulting in poor fit and waste of raw materials. Utility Model Content

[0003] The purpose of the utility model is to provide a heel centerline drawing auxiliary device, which facilitates the drawing of the heel centerline and improves the qualification rate of shoe production.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a heel centerline drawing auxiliary device, comprising a mounting seat, one side of the mounting seat is provided with a reference seat for fitting with the sole, and the other side of the mounting seat is provided with a ruler for drawing the heel centerline, the surface of the ruler is provided with scales along the length direction, one side of the ruler is aligned with the center line of the mounting seat, and the ruler and the reference seat are arranged perpendicular to each other.

[0005] By adopting the above technical solution, when in use, the reference seat is attached to the bottom surface of the sole, the scale is aligned with the center of the heel, and then the center line is drawn on the heel along the scale to ensure that there is no deviation when making the heel, and the heel height is also accurately made. Therefore, the use of this device greatly facilitates the drawing of the heel center line and can improve the pass rate of shoe production.

[0006] The utility model is further configured such that the scale is made of elastic metal material.

[0007] By adopting the above technical solution, the ruler adopts an elastic structure, which can effectively fit the heel surfaces of different lasts through deformation and bending, thereby facilitating the drawing of the center line.

[0008] The utility model is further configured such that the scale is detachably mounted on the mounting base via connecting screws.

[0009] By adopting the above technical solution, the detachable structure of the scale is not only convenient for early assembly operations, but also convenient for later replacement operations of the scale.

[0010] The utility model is further configured as follows: a positioning groove is provided on the mounting seat, a screw hole is provided at the inner end of the positioning groove, one end of the scale is embedded in the positioning groove, and a circular hole corresponding to the screw hole is provided on the scale, the screw portion of the connecting screw passes through the circular hole and is screwed into the screw hole, and the screw head of the connecting screw abuts against the surface of the scale.

[0011] By adopting the above technical solution, the scale is positioned through the positioning groove, which not only improves the stability of the scale installation structure, but also enables the circular holes on the scale and the screw holes on the mounting base to be quickly aligned, so as to facilitate the installation of the connecting screws and be more conducive to the assembly operation of the product.

[0012] The present invention is further configured such that the screw head of the connecting screw is completely embedded in the positioning groove.

[0013] By adopting the above technical solution, the screw head is prevented from being exposed to the outside, forming an angular protrusion, which may scratch the user or damage the user's clothes during use.

[0014] The present invention is further configured such that the end portion of the scale disposed in the positioning groove is semicircular in shape, and the shape of the inner end of the positioning groove matches the shape of the end portion of the scale.

[0015] By adopting the above technical solution, not only is the fit good and installation more convenient, but also stress concentration can be reduced and the service life of the scale can be increased.

[0016] The present invention is further configured such that a hand-holding protrusion is provided at one end of the mounting base away from the scale.

[0017] By adopting the above technical solution, the user can hold the mounting base with one hand to align and draw, which makes it more convenient to use.

[0018] The present invention is further configured such that the top corners on both sides of the hand-held protrusion, the junction between the hand-held protrusion and the mounting seat, and the top corners on both sides of the mounting seat are all provided with rounded corners.

[0019] By adopting the above technical solution, it is not only more beautiful, but also does not scratch or scrape the user during use, and is safer. In addition, after the rounded corners are processed, stress concentration can be reduced, the compressive and tensile properties of the device can be increased, and the stress concentration of the tough corners and the occurrence of fatigue cracks can be reduced.

[0020] The utility model is further configured such that the reference seat and the mounting seat are an integrated structure, or the reference seat and the mounting seat are welded together, and the reference seat includes a connecting base plate connected to the mounting seat and support plates vertically arranged at both ends of the connecting base plate, and the two support plates are arranged parallel to each other.

[0021] By adopting the above technical solution, the structure is simple and reliable, and the processing is very convenient.

[0022] The present invention is further configured such that a protective paint layer is provided on the surfaces of the reference seat and the mounting seat.

[0023] By adopting the above technical solution, it is not only more beautiful, but also can protect the reference seat and the mounting seat surface from oxidation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A first-perspective stereoscopic view of the entire utility model;

[0025] Figure 2 A second perspective stereoscopic view of the entire utility model;

[0026] Figure 3 A top view of the entire utility model;

[0027] Figure 4 For this utility model Figure 3 AA section view of the structure;

[0028] Figure 5 An exploded view of the entire utility model;

[0029] Figure 6 This is a schematic structural diagram of different heels of the shoe last in the present invention.

[0030] In the figure: 1. Mounting base; 2. Reference base; 3. Scale; 4. Scale; 5. Connecting screw; 6. Positioning groove; 7. Screw hole; 8. Round hole; 9. Hand-held protrusion; 10. Rounded corner; 11. Connecting base plate; 12. Support plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example: As shown in the attached Figures 1 to 5 The heel centerline drawing auxiliary device shown includes a mounting base 1, one side of the mounting base 1 is provided with a reference base 2 for fitting with the sole, and the other side of the mounting base 1 is provided with a scale 3 for drawing the heel centerline. The surface of the scale 3 is provided with scales 4 along the length direction, and the scale 4 can be laser engraved. One side of the scale 3 is aligned with the center line of the mounting base 1, and the scale 3 and the reference base 2 are arranged perpendicular to each other. When in use, the reference base 2 is fitted to the bottom surface of the sole so that the scale 3 is aligned with the center of the heel, and then the center line is drawn on the heel along the scale 3 to ensure that there is no deviation when making the heel, and at the same time, the heel height is accurately made. Therefore, the use of this device greatly facilitates the drawing of the heel centerline and can improve the pass rate of shoe production.

[0033] The scale 3 is made of elastic metal material, such as stainless steel. The scale 3 adopts an elastic structure, which can effectively fit the surface of different shoe lasts by deformation and bending, thereby facilitating the drawing of the center line. Figure 6 There are two shoe lasts, a and b.

[0034] As attached Figure 1 As shown, the scale 3 is detachably mounted on the mounting base 1 by connecting screws 5. The connecting screws 5 can be cross-slot screws, flat-slot screws, hexagon socket screws, etc. The detachable structure of the scale 3 not only facilitates the early assembly operation, but also facilitates the operation of replacing the scale 3 later.

[0035] As attached Figure 4 and attached Figure 5 As shown, the mounting base 1 is provided with a positioning groove 6, the inner end of which is provided with a screw hole 7. One end of the scale 3 is embedded in the positioning groove 6, and a circular hole 8 corresponding to the screw hole 7 is provided on the scale 3. The screw portion of the connecting screw 5 passes through the circular hole 8 and is screwed into the screw hole 7, with the screw head of the connecting screw 5 abutting against the surface of the scale 3. Positioning the scale 3 through the positioning groove 6 not only improves the stability of the mounting structure of the scale 3, but also allows for quick alignment of the circular hole 8 on the scale 3 and the screw hole 7 on the mounting base 1, facilitating the installation of the connecting screw 5 and further facilitating the assembly operation of the product.

[0036] Among them, the screw head of the connecting screw 5 is completely embedded in the positioning groove 6. This design can prevent the screw head from protruding externally to form an angular protrusion, which may scratch the user or damage the user's clothing during use.

[0037] As shown in the Figure 5 attachment, the end of the scale 3 disposed in the positioning groove 6 is in a semi-circular shape, and the shape of the inner end of the positioning groove 6 is adapted to the shape of the end of the scale 3. This design not only has a good fit and is more conducive to installation, but also can reduce stress concentration and extend the service life of the scale 3.

[0038] As shown in the Figure 5 attachment, a hand-held convex part 9 is provided at one end of the mounting base 1 away from the scale 3, and the hand-held convex part 9 and the mounting base 1 are of an integral structure. The design of the hand-held convex part 9 facilitates the user to hold the mounting base 1 with one hand for alignment and drawing, making it more convenient to use.

[0039] As shown in the Figure 5 attachment, rounded corners 10 are provided at the top corner parts on both sides of the hand-held convex part 9, at the junction between the hand-held convex part 9 and the mounting base 1, and at the top corner parts on both sides of the mounting base 1. This design is not only more beautiful, but also does not scratch or hurt the user during use, with better safety. In addition, after rounding, stress concentration can be reduced, the compressive and tensile properties of the device can be increased, and the stress concentration of the toughness angle and the occurrence of fatigue cracks can be reduced.

[0040] As shown in the Figure 5 attachment, the reference base 2 and the mounting base 1 are of an integral structure, or the reference base 2 and the mounting base 1 are welded together. The reference base 2 includes a connecting substrate 11 connected to the mounting base 1 and support plates 12 vertically provided at both ends of the connecting substrate 11. The two support plates 12 are arranged in parallel with each other, and the two support plates 12 and the connecting substrate 11 form a U-shaped structure. This design has a simple and reliable structure and is very convenient for processing.

[0041] In addition, a protective paint layer is provided on the surfaces of the reference base 2 and the mounting base 1. That is, the reference group and the mounting base 1 are spray-painted, which is not only more beautiful, but also can protect the surfaces of the reference base 2 and the mounting base 1 from oxidation.

Claims

1. A device for drawing the center line of a heel, characterized by: The invention comprises a mounting seat (1), one side of the mounting seat (1) is provided with a reference seat (2) for fitting with the sole, the other side of the mounting seat (1) is provided with a scale (3) for drawing the center line of the heel, the surface of the scale (3) is provided with scales (4) along the length direction, one side of the scale (3) is aligned with the center line of the mounting seat (1), and the scale (3) and the reference seat (2) are arranged perpendicular to each other.

2. The heel centerline drawing auxiliary device according to claim 1, characterized in that: The scale (3) is made of elastic metal material.

3. The heel centerline drawing auxiliary device according to claim 1, characterized in that: The scale (3) is detachably mounted on the mounting seat (1) via connecting screws (5).

4. The heel centerline drawing auxiliary device according to claim 3, characterized in that: The mounting seat (1) is provided with a positioning groove (6), the inner end of the positioning groove (6) is provided with a screw hole (7), one end of the scale (3) is embedded in the positioning groove (6), and the scale (3) is provided with a circular hole (8) corresponding to the screw hole (7), the screw portion of the connecting screw (5) passes through the circular hole (8) and is screwed into the screw hole (7), and the screw head of the connecting screw (5) abuts against the surface of the scale (3).

5. The heel centerline drawing auxiliary device according to claim 4, characterized in that: The screw head of the connecting screw (5) is completely embedded in the positioning groove (6).

6. The heel centerline drawing auxiliary device according to claim 4, characterized in that: The end of the scale (3) disposed in the positioning groove (6) is semicircular in shape, and the shape of the inner end of the positioning groove (6) is compatible with the shape of the end of the scale (3).

7. The heel centerline drawing auxiliary device according to claim 1, characterized in that: A hand-held protrusion (9) is provided at one end of the mounting seat (1) away from the scale (3).

8. The heel centerline drawing auxiliary device according to claim 7, characterized in that: The top corners on both sides of the hand-held protrusion (9), the boundary between the hand-held protrusion (9) and the mounting seat (1), and the top corners on both sides of the mounting seat (1) are all provided with rounded corners (10).

9. The heel centerline drawing auxiliary device according to claim 1, characterized in that: The reference seat (2) and the mounting seat (1) are an integrated structure, or the reference seat (2) and the mounting seat (1) are welded together. The reference seat (2) comprises a connecting substrate (11) connected to the mounting seat (1) and support plates (12) arranged perpendicularly at both ends of the connecting substrate (11). The two support plates (12) are arranged parallel to each other.

10. The heel centerline drawing auxiliary device according to claim 1, characterized in that: The surfaces of the reference seat (2) and the mounting seat (1) are provided with a protective paint layer.

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