TWM546894U - Cutting structure for assisting curvature of a flexible sheet to form a stereoscopic contour - Google Patents

Abstract

A cutting structure is provided. The cutting structure is provided to form on a bent portion of a flexible sheet. The cutting structure has two parallel cutting paths, and each cutting path has a plurality of cutting sections arranged at interval and adjacent to each other. Each cutting section is provided a linear shape to cut through the flexible sheet. The cutting path is laterally offset to another cutting path, and two ends of the cutting sections of the two parallel cutting paths are oppositely interlaced without being connected. Each cutting section is projected to form a first projected section toward a first projection direction and a second projected section toward a second projection direction. Two second projected sections provided by any two of oppositely interlaced cutting sections are overlapped, and the first direction is vertical to the second direction. When the bent portions of the flexible sheet are formed correspondingly with one the cutting structure, the flexible sheet is capable of being constructed to a stereoscopic contour by the curvature of the bent portion.

Description

A bending structure for assisting a soft sheet to form a three-dimensional shape

The present invention relates to a cutting structure for assisting the bending of a soft sheet, in particular, a soft sheet is to be formed with a cutting structure at the bend to assist the bending of the soft sheet to form a three-dimensional shape.

Conventional leather bags need to be prepared for cumbersome work and tool materials such as boarding, cutting, gluing, punching, and sewing. For the general public of non-professional craftsmen, homemade leather bags have quite technical thresholds.

In addition, in general, when the leather is stitched and woven, a plurality of suture holes are prefabricated on the joint of at least two pieces of leather, and the suture is passed through the suture holes to suture the at least two pieces of leather. When making more complex items, such as handbags or wallets, not only does it require a lot of leather, but it also takes a lot of time to do the sewing work. Therefore, the self-made leather goods are difficult to complete in a short time, and the general public is not easy to enjoy the fun of homemade leather bags.

Therefore, the present invention provides a special cutting structure, thereby solving the above-mentioned sewing problem, requiring sewing technology and technical problems that cannot be completed in a short time.

The present invention relates to a cutting structure for forming a bend at one of the flexible sheets. The cutting configuration includes parallel two-notch paths, each of the slit paths having a plurality of slits spaced apart and adjacently arranged, each slit being linear to penetrate the flexible sheet. The slit of one of the slit paths is laterally offset with respect to the slit of the other parallel slit path, and the two ends of the slit of the parallel two slit path are staggered relative to each other. Each of the slits is projected in a first direction to form a first projection slit and projected in a second direction to form a second projection slit, and the second projection slits of the two intersecting opposite slits partially overlap, wherein the first direction and the second direction are respectively Vertical to each other.

When the bending portion of the flexible sheet to be bent has the above-mentioned cutting structure, the bending portion can be assisted to bend, and the soft sheet can be formed into a three-dimensional shape.

The cutting structure of the present invention can be widely applied to a leather material, a plastic material, a cloth material or a paper material. Especially for leather materials, there is no need to have the technique of needle stitching, and it is not necessary to use adhesive bonding, that is, the sheet leather material can be changed into a three-dimensional object by bending.

The above objects, technical features, and advantages will be more apparent from the following description.

1‧‧‧Soft sheet

2‧‧‧ cutting structure

20, 22‧‧‧ Incision path

211, 311‧‧‧ first side

212, 312‧‧‧ second side

23, 23a, 23b‧‧‧ first projection incision

24, 24a, 24b‧‧‧ second projection cut

251‧‧‧First projection point

252‧‧‧second projection point

31, 41‧‧‧ incision

a, a1, a2, a3, a4, a5‧‧‧ incision

b, b1, b2, b3, b4, b5‧‧‧ incision

P‧‧‧ two ends

T‧‧‧ separation distance

T1‧‧‧ first distance

T2‧‧‧Second distance

X‧‧‧ first direction

Y‧‧‧second direction

D ₁ ‧‧‧First length

D ₂ ‧‧‧second length

Figure 1 is a schematic view showing the use of the cutting structure of the present invention for a flexible sheet.

Fig. 2A is a schematic view showing the arrangement of the first embodiment of the cutting structure of the present invention.

Figure 2B is a partial schematic view of Figure 2A.

Fig. 3A is a schematic view showing another type of slit of the first embodiment.

Figure 3B is a partial intent to capture Figure 3A.

Figure 4 is a schematic view of another embodiment of the cutting configuration of the present invention to illustrate another aspect of the slit.

Fig. 5 is a schematic view showing a third embodiment of the cutting structure of the present invention in which the slit is shown as an arc shape.

Fig. 6 is a schematic view showing the cutting structure of the present invention applied to a leather material and bent into a three-dimensional shape.

The present invention will be explained below by way of examples, however, the description of the embodiments is merely illustrative of the technical content of the present invention and its purpose, and is not intended to limit the present invention directly. It should be noted that, in the following embodiments and illustrations, components that are not directly related to the present invention have been omitted and are not shown; and the dimensions and relative positional relationships of the components in the drawings are only used for illustration and not for use. Limit the implementation scale and size.

Fig. 1 is a schematic view showing the use of the cutting structure of the present invention for a soft sheet. In the present embodiment, a complete flexible sheet 1 can have a predetermined shape first, and then the portion to be bent corresponds to the cutting structure 2 of the present invention.

The cutting structure of the present invention comprises parallel two-cut paths, each of which has a plurality of slits spaced apart and adjacently arranged. The specific aspects of the cutting structure are described in detail below with reference to the drawings.

Fig. 2A is a schematic view showing the arrangement of the first embodiment of the cutting structure of the present invention. In order to facilitate the description of the parallel two-cut path and the arrangement of the slits, they will be denoted by different component symbols. For example, the cutting structure 2 includes two mutually parallel slit paths 20 and a plurality of slit paths 22, wherein the slit paths 20 have a plurality of slits a1, a2, a3, a4, a5, ... which are spaced apart and adjacently arranged. For the slit a), the slit path 22 also has a plurality of slits b1, b2, b3, b4, b5 (which may be collectively referred to as a slit b) spaced apart and adjacently arranged; and each of the slits a, b is linear to penetrate the softness The sheet 1 refers to a linear secant which is formed by the laser cutting, the cutter, the die or the cookware on the soft sheet 1 to penetrate the flexible sheet itself.

The cutting structure of the present invention is characterized in that the slit of one of the slit paths is laterally offset with respect to the slit of the other slit path, and the two ends of the slits of the parallel two slit paths are staggered relative to each other. Specifically, as shown in FIG. 2A, each of the slits a, b has a double end P, and the slits a1, a2, a3, a4, a5 of the slit path 20 are incision b1, b2, b3 with respect to the slit path 22. , b4, b5... laterally offset, the two ends P of each of the slits a and the two ends P of each of the slits b are alternately opposed to each other, and the two ends P of the slits a do not intersect the ends of the slits b P phase bonding.

The linear incisions in Figures 2A, 3A, 4 and 5 may have different patterns. To more clearly illustrate the arrangement of the parallel two-cut paths, the projection method is used as the basis for defining the position of the incision and its size ratio. Referring to FIG. 2A, a first direction X and a second direction Y may be defined, which are perpendicular to each other, wherein the first direction X refers to a parallel direction with the two slit paths.

As shown in FIG. 2A, each of the slits a1, a2, a3, a4, a5, ... and each of the slits b2, b3, b4, b5, ... projecting in the first direction X respectively form a first projection slit 23a, 23b. (collectively The first projection slits 23) and the projections in the second direction Y form a second projection slit 24a, 24b (collectively referred to as a second projection slit 24).

The second projection slits 24a, 24b produced when any two of the interleaved opposing slits are selected will only partially overlap. Specifically, referring to FIG. 2B, if any of the two interlaced relatives (eg, the slit a1 and the slit b1) are selected, the second projection slits 24a, 24b generated by the two will partially overlap. It should be noted that if the slits a1 and the second projection slits 24a, 24b of the slit b1 are completely overlapped, it can be implemented but is not the best embodiment of the present invention.

On the other hand, the relationship between the two first projection slits 23a, 23b is in addition to the aspect of the second A-2B diagram, and the other aspect is as shown in Fig. 3A-3B. Wherein, in the 2A-2B diagram, the first projection slits 23a, 23b of the two intersecting slits a, b are not overlapped, that is, the first projection slits 23a, 23b may be apart from each other by a distance, or the first projection slit The tangent of 23a, 23b is an implementable range; however, if the first projection slits 23a, 23b are too far apart, a good auxiliary bending effect cannot be obtained.

In the 3A-3B diagram, any two of the first projection slits 23a, 23b intersecting the slits a, b are partially overlapped.

Moreover, as shown in FIG. 2B, each of the slits defines a center point 25 and projects toward the first direction X to form a first projection point 251 and a second direction Y to form a second projection point 252.

With respect to the arrangement distance of the spaced and adjacently arranged slits, that is, the second projection points of any two adjacent slits on any of the slit paths constitute an interval distance of preferably between 4 mm and 40 mm. For example, as in FIG. 2A, the second projection points 252 of the slits a1, a2, a3, a4, a5, . . . are equally spaced by the separation distance T, and the slits b1, b2, b3, b4, b5.. The second projection points 252 are also arranged equidistantly at a separation distance T.

Regarding the arrangement distance of the two staggered opposite slits, one of the first projection points located between the two interlaced opposite slits is preferably between 2 mm and 20 mm, and is located at the second projection of the two interlaced relative slits. One of the distances between the points is preferably between 2 mm and 20 mm. For example, referring to FIG. 2B, the two first projection points 251 between the two interlaced opposite slits a1, b1 constitute a first distance T1 between 2 mm and 20 mm; and the two interlaces are between the slits a1 and b1. The second second projection point 252 forms a second distance T2 between 2 mm and 20 mm. Wherein, the second distance T2 is the relative distance of the lateral offset of the slit a1 and the slit b1.

With the above arrangement, except for the last slit on both sides of the slit path, the second projection slit of one slit is alternately opposed to the second projection slit of the other slit. For example, as in FIG. 2A, the second projection slit of the slit a2 is simultaneously staggered with the second projection slit of the slits b1, b2, or the slit b1 is simultaneously staggered with the two slits a1, a2.

Still further, each of the slits of the present creation is not a conventional circular, rhombic or rectangular suture hole, but a linear incision. As shown in Figures 2A-2B and 3A-3B, each of the slits a, b has a first side 211 and a non-parallel two second side 212, and the second side 212 is non-perpendicularly connected to the first side. On both sides of 211, wherein the two ends P of the slit refer to the ends of the second side 212.

The above-mentioned linear slit is not limited to the 2A-2B and 3A-3B drawings, and may have another ㄇ-shaped pattern as shown in FIG. 4, each slit 31 having a first side 311 and two parallel second sides. 312, the second side 312 is perpendicularly connected to the two sides of the first side 311, wherein the two ends P of the slit also refer to the ends of the second side 312. Alternatively, as another aspect shown in Fig. 5, each of the slits has an arcuate slit 41, wherein the two ends P of the slits also refer to the ends of the arcuate slits 41.

It is emphasized again that the slits a1, a2, a3, a4, a5, ..., and the slits b1, b2, b3, b4, b5, which are mentioned in the above embodiments, have the same shape and size, and only the above embodiments For the convenience of explanation, it is represented by different symbols. In principle, the shapes of the respective slits in the 2A-2B, 3A-3B, and 4 are bilaterally symmetric, that is, the second sides of the slits are non-parallel but symmetrical (ie, 2A-2B, 3A-3B) and The second side is parallel and symmetrical (ie, Figure 4), or the shape of the slit can even be a symmetrical V-shape (not shown). However, as will be appreciated by those of ordinary skill in the art, the individual slits may also assume a shape that is not completely bilaterally symmetrical (not shown).

Regarding the size of the slit, since the linear slits can have different patterns, the basis for the uniform definition, the depth and width of the slit are defined by the first length of the first projection slit and the second length of the second projection slit. basis. Taking FIG. 2B as an example, one of the slits a, b has a depth corresponding to a first length D1 of the first projection slits 23a, 23b, which is preferably between 1 mm and 10 mm. One of the slits a, b has a width corresponding to a second length D2 of the second projection slits 24a, 24b, which is preferably between 3 mm and 30 mm.

In summary, the cutting structure of the present invention can replace the conventional stitching and adhesive bonding method, and the auxiliary bending soft sheet 1 is changed into a three-dimensional article through the cutting structure 2, wherein the soft sheet 1 can be a leather material. , a plastic material, a cloth material or a paper.

In the commercial application, the manufacturing end of the front end prefabricates the cutting structure of the creation into a flat soft sheet, and can be mass-produced, and then sold to the user of the back end to assemble the body structure.

In addition, the cutting structure of this creation is actually applied to leather materials, which can simulate the visual effect of realistic stitching. As shown in Figure 6, the manufacturing end is used on a piece of leather material. The cutting structure 2 is created. The leather material has a plurality of bends and correspondingly forms a cutting structure 2, and is sold to the user of the back end. The user can bend the bend of the leather material by hand to change the shape. The wallet, so the user does not need to use the stitching technique, so that the general public can easily enjoy the homemade leather bag. Due to the flexibility of the leather material, it can be matched with a watercolor pen, a brush, or a water-stained sponge to shape the incision at the opposite side to help the bend have better flexibility.

2‧‧‧ cutting structure

20, 22‧‧‧ Incision path

211‧‧‧ first side

212‧‧‧ second side

23, 23a, 23b‧‧‧ first projection incision

24, 24a, 24b‧‧‧ second projection cut

252‧‧‧second projection point

a, a1, a2, a3, a4, a5‧‧‧ incision

b, b1, b2, b3, b4, b5‧‧‧ incision

P‧‧‧ two ends

T‧‧‧ separation distance

X‧‧‧ first direction

Y‧‧‧second direction

Claims (10)

A cutting structure formed at a bend of a flexible sheet to assist in bending of the flexible sheet, the cutting structure comprising: parallel two-cut paths, each of the slit paths having a spacing and adjacently arranged in plural a slit, each of the slits being linearly extending through the flexible sheet, and wherein the one of the slit paths is laterally offset with respect to the other slit of the slit path, and the parallel of the two slit paths The two ends of the incision are staggered relative to each other, wherein each of the slits is projected in a first direction to form a first projection slit and projected in a second direction to form a second projection slit, and wherein any two of the slits are opposite to the second projection The second projection slits are partially overlapped, wherein the first direction and the second direction are perpendicular to each other. The cutting configuration as claimed in claim 1, wherein any two of the first projection slits do not overlap with respect to the slit. A cutting configuration as claimed in claim 1, wherein any two of the first projections are partially overlapped with respect to the second projection. The cutting structure of claim 1, 2 or 3, each of the slits defining a center point and projecting toward the first direction to form a first projection point and projecting toward the second direction to form a second projection point, wherein Any two of the slit paths may be formed between the second projection points and the second projection point preferably between 4 mm and 40 mm. A cutting configuration as claimed in claim 4, wherein any one of the two projections between the first projection point and the first projection point is preferably between 2 mm and 20 mm, and any two of the interlaces are opposite to the slit. The second distance between the second projection points is preferably between 2 mm and 20 mm. The cutting structure as claimed in claim 1, 2 or 3, wherein each of the lines includes a first side and two non-parallel second sides, and the second side is non-perpendicularly connected to the first On both sides of the side, the two ends of the slit are the ends of the second side. The cutting structure as claimed in claim 1, 2 or 3, wherein each of the lines includes a first side and two parallel second sides, and the second side is vertically connected to the first side, respectively. On both sides, the two ends of the slit are the ends of the second side. A cutting configuration as claimed in claim 1, 2 or 3, wherein each of the lines of the slit has an arcuate slit, the ends of the slit being the ends of the arcuate slit. The cutting structure as claimed in claim 1, wherein one of the depths of each of the slits corresponds to a first length of the first projection slit, preferably between 1 mm and 10 mm, and one of the slits corresponds to the second projection slit. A second length is preferably between 3 mm and 30 mm. The cutting structure as claimed in claim 1, wherein the flexible sheet material is a leather material, a plastic material, a cloth material or a paper material.