A shoe last for protecting ancient shoes and boots relics

Abstract

The utility model discloses a kind of shoe trees for ancient shoes and boots cultural relics protection, including front upper part last body and rear upper part last body, the front upper part last body with the rear upper part last body are mutually inserted into one body, wherein: the rear surface of the front upper part last body towards the rear upper part last body is inclined plane and the rear surface and the top surface of the front upper part last body are jointly concave with a wedge-shaped embedding groove;The front surface of the rear upper part last body towards the front upper part last body is inclined plane compatible with the rear surface and the front surface is equipped with wedge-shaped block compatible with the wedge-shaped embedding groove;The rear upper part last body is inserted in the wedge-shaped embedding groove by the wedge-shaped block and realizes the insertion of the front upper part last body with fixed.Further, bootleg last body can also be included.The utility model can play good temporary supporting and fixing role in shaping, display and other links for shoes and boots cultural relics unearthed by archaeology, and will not damage shoes and boots cultural relics.

Description

Technical Field

[0001] This utility model relates to a shoe last, and more particularly to a shoe last used for the preservation of ancient footwear artifacts. Background Technology

[0002] Currently, most archaeological finds of shoes and boots use soft padding for temporary support and fixation during shaping and display. For example, smooth silk pouches filled with absorbent cotton are used to fill the inner cavity of the shoes and boots; alternatively, acid-free white cardboard is rolled into "paper tubes" and used to fill the inner cavity in sections. However, these methods have several drawbacks in terms of artifact preservation: First, the shape of the soft padding often differs significantly from the shape of the inner cavity, leading to undesirable deformation. Second, the insertion and removal of soft padding can create concentrated tension at the bends in the inner cavity, causing damage or tearing. Utility Model Content

[0003] The purpose of this utility model is to provide a shoe last for the protection of ancient footwear artifacts, which can provide good temporary support and fixation for archaeological unearthed footwear artifacts during shaping, display and other processes, without damaging the footwear artifacts.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A shoe last for the preservation of ancient footwear artifacts includes a front last and a back last, wherein the front last and the back last are interlocked together, wherein: the rear surface of the front last facing the back last is an inclined plane, and the rear surface and the top surface of the front last are both recessed with a wedge-shaped groove; the front surface of the back last facing the front last is an inclined plane adapted to the rear surface, and the front surface is provided with a wedge-shaped block adapted to the wedge-shaped groove; the back last is fixed to the front last by the wedge-shaped block being inserted into the wedge-shaped groove.

[0005] Furthermore, the shoe last also includes a boot shaft last body, which is integrally connected with the front last body and the back last body. The bottom of the boot shaft last body has a cylindrical boot shaft insertion hole and a cylindrical boot shaft insertion rod. The boot shaft insertion hole is adapted to the cylindrical back last insertion rod provided on the top surface of the back last body, and the boot shaft insertion rod is adapted to the cylindrical front last insertion hole provided on the top surface of the front last body. The boot shaft last body is fixed to the front last body and the back last body by inserting the boot shaft insertion rod into the front last insertion hole and the back last insertion rod into the boot shaft insertion hole.

[0006] The advantages of this utility model are: This utility model utilizes shoe lasts used in shoe manufacturing to provide good temporary support and fixation for archaeological shoe artifacts during shaping and display. The process of filling and removing the shoe lasts is convenient and will not cause deformation, damage or tearing of the shoe artifacts during filling, removing and fixing. This is beneficial to the protection of cultural relics and is suitable for widespread application. Attached Figure Description

[0007] Figure 1 This is a structural schematic diagram of the shoe last of this utility model.

[0008] Figure 2 This is a front view schematic diagram of the front last.

[0009] Figure 3 This is a top view of the front last.

[0010] Figure 4 This is a three-dimensional schematic diagram of the front last.

[0011] Figure 5 This is a front view schematic diagram of the rear last.

[0012] Figure 6 This is a top view of the rear last.

[0013] Figure 7 This is a three-dimensional schematic diagram of the back last.

[0014] Figure 8 This is a front view schematic diagram of the boot last.

[0015] Figure 9 This is a three-dimensional schematic diagram of the boot last.

[0016] Figure 10 This is an illustrative diagram illustrating the process of filling a shoe last into a boot artifact according to this utility model. Detailed Implementation

[0017] like Figures 1 to 9 As shown, this utility model proposes a shoe last for the preservation of ancient footwear artifacts, comprising a front last 10 and a back last 20, which are interlocked to form a single unit. The rear surface 11 of the front last 10 facing the back last 20 is an inclined plane, and a wedge-shaped groove 13 is recessed on both the rear surface 11 and the top surface 12 of the front last 10. The wedge-shaped groove 13 is located at the connection between the rear surface 11 and the top surface 12 of the front last 10; the front surface 21 of the rear last 20 facing the front last 10 is an inclined plane adapted to the rear surface 11, and the front surface 21 is provided with a wedge-shaped block 23 adapted to the wedge-shaped groove 13; the rear last 20 is fixed to the front last 10 by inserting the wedge-shaped block 23 into the wedge-shaped groove 13.

[0018] In practical applications, the shoe last formed by the insertion of the front last 10 and the back last 20 can be directly used for temporary support and fixation of shoe artifacts without boot shafts.

[0019] like Figure 1 The rear surface 11 of the front last 10 is an inclined plane sloping towards the front of the shoe last. This design prevents the back last 20 from being smoothly inserted into the front last 10 already placed on the shoe artifact, avoiding unnecessary damage (deformation, breakage, or tearing) to the shoe artifact during the insertion process. In other words, it minimizes contact with the inner surface of the shoe artifact during the insertion process. Correspondingly, the front surface 21 of the back last 20 is also an inclined plane sloping towards the front of the shoe last, and the inclination angle of the rear surface 11 is the same as that of the front surface 21.

[0020] like Figures 2 to 4 The wedge-shaped groove 13 has a trapezoidal cross-section, preferably an isosceles trapezoid, and its structure is smaller on the outside and larger on the inside relative to the back surface 11 in the front-to-back direction of the shoe last. This structural design allows the back last 20 to be inserted into the front last 10 from top to bottom, as... Figure 10 The rear last 20 and the front last 10 can be completely locked together in the horizontal direction, making it more secure, and the rear last 20 will not come out of the front last 10.

[0021] like Figure 1 The shoe last for the protection of ancient footwear artifacts of this utility model also includes a boot shaft last body 30, which is inserted into the front last body 10 and the back last body 20 to form a whole. The bottom of the boot shaft last body 30 has a cylindrical boot shaft insertion hole 33 and a cylindrical boot shaft insertion rod 34. The boot shaft insertion hole 33 is adapted to the cylindrical back last insertion rod 24 provided on the top surface 22 of the back last body 20, and the boot shaft insertion rod 34 is adapted to the cylindrical front last insertion hole 14 provided on the top surface 12 of the front last body 10. The boot shaft last body 30 is fixed to the front last body 10 and the back last body 20 by inserting the boot shaft insertion rod 34 into the front last insertion hole 14 and the back last insertion rod 24 into the boot shaft insertion hole 33.

[0022] Furthermore, such as Figure 8 and Figure 9 The bottom of the boot last 30 has a first bottom surface 31 and a second bottom surface 32. Both the first bottom surface 31 and the second bottom surface 32 are inclined planes, and the first bottom surface 31 and the second bottom surface 32 form downwardly protruding points. Preferably, the angle between the first bottom surface 31 and the second bottom surface 32 is an obtuse angle. The top surface 12 of the front last 10 is an inclined plane adapted to the second bottom surface 32. The top surface 22 of the rear last 20 is an inclined plane adapted to the first bottom surface 31. (Reference) Figure 1 The top surface 12 of the front last 10 and the top surface 22 of the rear last 20 form a concave tip, and the included angle between them matches the included angle between the first bottom surface 31 and the second bottom surface 32.

[0023] In the actual design, the boot shaft insert rod 34 and the rear vamp insert rod 24 are finger-shaped. Specifically, as the height of the protrusion increases, the thickness of the rod decreases. The purpose of this design is to facilitate insertion.

[0024] In this utility model, the boot insertion hole 33 and the boot insertion rod 34 on the bottom of the boot last 30 are in a straight line when viewed along the front and back direction of the shoe last, that is, the boot insertion hole 33 is at the rear and the boot insertion rod 34 is at the front.

[0025] The structural design of the boot barrel insertion hole 33 and the boot barrel insertion rod 34, as well as the inclined design of the first bottom surface 31 and the second bottom surface 32 of the boot barrel last 30, are conducive to increasing the force-bearing area of ​​the boot barrel insertion rod 34 and the rear insert rod 24 in the vertical direction, thereby enhancing the insertion firmness and stability of the boot barrel last 30.

[0026] In practical applications, the shoe last formed by inserting the front last 10, the back last 20, and the boot last 30 can be used for temporary support and fixation of boot artifacts with boot shafts.

[0027] In this invention, the outer contour of the entire shoe last is adapted to the inner cavity size of the shoe and boot. In actual production, the inner cavity size of the shoe and boot artifact is first measured, and then an inner cavity model is made. This model is used as the reference for the shoe last size of this invention, and the outer contour size of the boot shaft last 30, the front last 10, and the back last 20 can be determined.

[0028] In this invention, the boot last 30, the front last 10, and the rear last 20 have a honeycomb structure, although a solid structure is also possible. They are 3D printed using foamed TPU (Thermoplastic Urethane) material. Foamed TPU material itself possesses a certain degree of softness and resilience; for example, FusRock brand TPU 95-Aero material can be used.

[0029] In actual design, the boot last 30, the vamp last 10, and the heel last 20 can also be hollow structures, 3D printed using ABS (Acrylonitrile-butadiene-styrene) plastic. Furthermore, since ABS plastic is a rigid material, the parts of the boot last 30, the vamp last 10, and the heel last 20 that contact the inner wall of the shoe artifact are all wrapped with a soft wall (a flexible material, usually 5mm thick) to serve as a buffer between the shoe last and the shoe artifact.

[0030] In addition, the shoe last of this utility model can also be made by injection molding or molding, but it is not as good as 3D printing in terms of cost and production efficiency.

[0031] In this utility model, such as Figure 1 On a shoe last, the direction from the toe to the heel is defined as the front-to-back direction, with the toe in front and the heel in the back. In a horizontal plane, the direction perpendicular to the front-to-back direction is the left-to-right direction, while the vertical direction is the up-down direction.

[0032] In this utility model, "footwear" is a general term, where "footwear" refers to basic footwear that covers the sole of the foot, and "boots" refers to styles where the upper extends beyond the ankle.

[0033] The following example, a boot artifact, illustrates the usage of this utility model: like Figure 10 As shown, when filling the boot artifact 40 with the shoe last of this utility model, the front last 10 is first filled into the boot cavity. The movement trajectory of the front last 10 is first vertical and then becomes horizontal, finally abutting against and fitting against the front part of the boot cavity, i.e., the toe area. Then, the back last 20 is vertically filled into the boot cavity, so that the wedge-shaped block 23 of the back last 20 is inserted into the wedge-shaped groove 13 of the front last 10. The front last 10 and the back last 20 are inserted and fixed, and the back last 20 abuts against and fits against the rear part of the boot cavity, i.e., the heel area. Finally, the boot last 30 is vertically inserted into the boot cavity, with the boot last insert 34 of the boot last 30 inserted into the front insertion hole 14 of the front last 10, and the rear insertion insert 24 of the rear last 20 inserted into the boot insertion hole 33 of the boot last 30. Thus, the boot last 30 is connected and fixed to the front last 10 and the rear last 20, fitting snugly against the boot shaft portion of the boot cavity. At this point, the shoe last of this invention is complete in the boot artifact 40.

[0034] Conversely, the process of removing the shoe last of this utility model from the boot artifact is the reverse of the filling process described above, and will not be elaborated further here.

[0035] Furthermore, the process of inserting and removing the shoe last of this utility model into the shoe artifact can be understood by referring to the process of using the shoe last of this utility model in the boot artifact mentioned above, and will not be repeated here.

[0036] The advantages of this utility model are: This utility model utilizes shoe lasts used in shoe manufacturing to provide good temporary support and fixation for archaeological shoe artifacts during shaping and display. The process of filling and removing the shoe lasts is convenient and will not cause deformation, damage or tearing of the shoe artifacts during filling, removing and fixing. This is beneficial to the protection of cultural relics and is suitable for widespread application.

[0037] The above describes the preferred embodiments of this utility model and the technical principles applied thereto. For those skilled in the art, any obvious changes such as equivalent transformations or simple substitutions based on the technical solutions of this utility model without departing from the spirit and scope of this utility model shall fall within the protection scope of this utility model.

Claims

1. A shoe last for the preservation of ancient footwear artifacts, characterized in that, The device includes a front last and a rear last, which are interlocked together. The rear surface of the front last facing the rear last is an inclined plane, and both the rear surface and the top surface of the front last are recessed into a wedge-shaped groove. The front surface of the rear last facing the front last is an inclined plane adapted to the rear surface, and a wedge-shaped block adapted to the wedge-shaped groove is provided on the front surface. The rear last is fixed to the front last by inserting the wedge-shaped block into the wedge-shaped groove.

2. The shoe last for the preservation of ancient footwear artifacts as described in claim 1, characterized in that, The rear surface of the front last is an inclined plane that slopes towards the front of the shoe last.

3. The shoe last for the preservation of ancient footwear artifacts as described in claim 2, characterized in that, The wedge-shaped groove has a trapezoidal cross-section and is smaller on the outside and larger on the inside relative to the rear surface in the front-back direction of the shoe last.

4. The shoe last for the preservation of ancient footwear artifacts as described in any one of claims 1 to 3, characterized in that, It also includes a boot last, which is integrally connected to the front last and the rear last. The bottom of the boot last has a cylindrical boot insertion hole and a cylindrical boot insertion rod. The boot insertion hole is adapted to the cylindrical rear insertion rod on the top surface of the rear last, and the boot insertion rod is adapted to the cylindrical front insertion hole on the top surface of the front last. The boot last is fixed to the front last and the rear last by inserting the boot insertion rod into the front insertion hole and the rear insertion rod into the boot insertion hole.

5. The shoe last for the preservation of ancient footwear artifacts as described in claim 4, characterized in that, The bottom of the boot last has a first bottom surface and a second bottom surface, both of which are inclined planes and the first bottom surface and the second bottom surface form a downward protruding point; the top surface of the front last is an inclined plane that matches the second bottom surface; the top surface of the rear last is an inclined plane that matches the first bottom surface.

6. The shoe last for the preservation of ancient footwear artifacts as described in claim 4, characterized in that, The boot shaft insert and the rear insert are finger-shaped.

7. The shoe last for the preservation of ancient footwear artifacts as described in claim 4, characterized in that, The boot last, the front last, and the rear last are honeycomb structures, and are 3D printed using foamed TPU material.

8. The shoe last for the preservation of ancient footwear artifacts as described in claim 4, characterized in that, The boot last, the front last, and the back last are hollow structures, 3D printed using ABS plastic. The portions of the boot last, the front last, and the back last that contact the inner wall of the shoe artifact are all wrapped with a soft wall.

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