JPH061399Y2 - Sheet material end folding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an end folding device for a sheet material such as leather or synthetic leather.

[Prior Art] Generally, when a processed product is manufactured using a sheet material such as leather, synthetic leather, or cloth, the sheet material is cut into a required size to prevent fraying from the end portion. In order to be able to do so, the end portions are folded back inside and adhered, and then the sheet materials are sewn together for processing.

For example, in the case of manufacturing wallets and the like using leather, an adhesive is applied to the section end of the leather, and the end is manually folded back and bonded so that the section has a substantially uniform width. After that, pieces of leather whose end portions are folded back are sewn together to obtain products such as wallets.

[Problems to be solved by the invention] However, in the manufacturing industry of wallets and the like using the above-mentioned leather, consumers generally have a wide variety of preferences and are easily influenced by the fashion, so that it may be a small-lot production of various kinds. Many. Therefore, it is difficult to mechanize the manufacturing process, and the work of folding back the section edge of the leather as described above must be done manually by an operator. It was not possible to turn back the parts.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sheet material end folding device that allows an inexperienced worker to easily perform a folding work with a uniform appearance and a uniform width.

[Means for Solving the Problems] The present invention is a sheet material edge folding device for uniformly folding a sheet material edge portion with a required width, the flat upper surface provided at one end of a work table having at least the sheet material edge portion. A receiving member extending with a receiving surface having a folded width of the portion, a pressing member having a pressing surface extending substantially the same width as the folding width on the upper side, and the pressing surface of the pressing member is the receiving surface. A connecting portion for connecting the pressing member to the receiving member so as to rotate about respective adjacent edges of the receiving surface and the pressing surface in a state of being adjacent to the receiving member so as to be flush with the receiving member; A sheet material end part folding device comprising a stopper plate which is attached to a side surface on the side opposite to the adjacent edge of the member so as to be capable of projecting and retracting with respect to the pressing surface and is biased by a spring in a direction in which the member always projects. It depends on.

[Operation] Therefore, in the present invention, the pressing member is brought into a suspended state, and the end portion of the sheet material that is folded back is brought into contact with the upper end portion of the stopper plate protruding from the pressing surface of the pressing member to work the sheet material. When the sheet is placed on a table and the pressing member is rotated upward while pressing the sheet material, the end portion of the sheet material is folded back with a width corresponding to the width of the pressing surface and is received by the pressing surface of the pressing member. It is sandwiched and pressed against the receiving surface of the member from above and below.

At this time, the stopper plate slides upward against the urging force of the spring, and the portion protruding from the pressing surface retreats to approximately the same position as the pressing surface.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

1 to 6 show an embodiment of the present invention. As shown in FIG. 1, one end of a rectangular worktable 2 having a required height is supported by a supporting leg 1 and a flat upper surface in a longitudinal direction thereof. A receiving member 4 having a receiving surface 3 is provided, and brackets 5, 5 protruding outward from the workbench 2 are provided at both ends of the receiving member 4 in the longitudinal direction.

Between the brackets 5 and 5, there is provided a long plate-shaped pressing member 7 having a flat pressing surface 6 having a uniform width in the longitudinal direction on the upper surface thereof and extending along the receiving member 4, and the pressing members are provided. The supporting portions 8,8 formed at both upper end portions in the longitudinal direction of 7 are pivotally attached to the respective brackets 5,5 via the horizontal pins 9,9 to form a connecting portion. As shown, in the state where the pressing member 7 is adjacent to the receiving member 4 so that the pressing surface 6 is flush with the receiving surface 3 of the receiving member 4, the adjoining edge between the receiving surface 3 and the pressing surface 6 is used as a rotation axis. It is configured so that it can rotate in the vertical direction.

Further, in a state where the pressing member 7 is suspended as shown in FIGS. 1 and 2, the pressing member 7 extends along the pressing member 7 as shown in FIG. 3 on the side surface of the pressing member 7 opposite to the workbench 2. A thin plate-like stopper plate 10 is attached so as to be vertically slidable. That is, the stopper plate 10 is attached to the side surface of the pressing member 7 with a bolt 13 loosely inserted through a washer 12 into a vertically elongated bolt sliding hole 11 formed at a required interval in the longitudinal direction of the stopper plate 10. The stopper plate 10 is mounted so that the stopper plate 10 can be slid vertically by moving the bolt sliding hole 11 vertically.

Further, a spring 14 extending obliquely downward is attached to the lower portion of the stopper plate 10, and an upper end outside the stopper plate 10 is lower than the height of the pressing surface 6 of the receiving member 4 and a lower end can cause the spring 14 to exert a reaction force. As described above, the bent cover 15 is provided on the workbench 2 side at a position lower than the lower end of the stopper plate 10.
Is attached to the side surface of the pressing member 7 with a bolt 17 through a bolt moving hole 16 formed in the stopper plate 10.
The repulsive force of the spring 14 urges 10 upward, and the bolt 17 for mounting the cover 15 does not interfere with the sliding of the stopper plate 10.

Here, the bolt sliding hole 11 and the bolt moving hole 16 are the upper end portion of the stopper plate 10 biased upward by the spring 14.
The pressing surface 6 of the pressing member 7 is arranged so that the pressing member 10a stops slightly upward.

In the figure, 18 indicates a section of leather which is a sheet material.

The operation will be described below.

First, the pressing member 7 is left in a suspended state as shown in FIGS. 1 and 2, and a piece 18 of leather having an end portion 18a which is previously cut to a required size and is folded back is coated with an adhesive.
Is placed on the workbench 2, and the piece 18 is moved to the pressing member 7 side until the upper end 10a of the stopper plate 10 protruding above the pressing surface 6 of the pressing member 7 contacts the end 18a of the piece 18. Hold it from above and press it with the worker's hand or pressing tool.

In such a state, when the cover 15 is held and the pressing member 7 is rotated and raised as shown in FIG. 4, the end 18a of the section 18 has a width corresponding to the width of the pressing surface 6 of the pressing member 7. The workbench 2 side (right side in FIG. 5) as shown in FIG.
Folded back to.

Here, it goes without saying that the width of the pressing surface 6 of the pressing member 7 is set in advance to a size that fits the desired folding width.

When the pressing member 7 is further raised from the state in which the stopper plate 10 of FIG. 5 is in contact with the upper surface of the section 18, the stopper plate 10 slides upward against the repulsive force of the spring 14 provided, and the pressing member 7 is pushed. The upper end 10a protruding from the pressing surface 6 is housed in the cover 15, and the pressing member 7 is in the upright state.

At this time, the end portion 18a of the folded piece 18 is sandwiched between the pressing surface 6 of the pressing member 7 and the receiving surface 3 of the receiving member 4 so as to be in pressure contact with each other, and are bonded in a folded state.

Therefore, according to the above, even for an inexperienced worker, it is extremely easy and sure that the end portion 18a of the leather section 18 has a desired uniform width.
Can be folded back and adhered, and a processed product with a beautiful appearance can be obtained.

The sheet material end folding device of the present invention is not limited to the above-described embodiment, the sheet material is not limited to leather, and the sheet material edge folding device is simply folded by folding the sheet material end portion and pressing it. Needless to say, it can be used also as a device for attaching the device, and can be variously modified without departing from the scope of the present invention.

[Effects of the Invention] As described above, according to the sheet material end folding device of the present invention, even an inexperienced worker can very easily and surely fold the sheet material end portion with a uniform width and press-contact it. It is possible to exert an excellent effect.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, and FIG. 2 is a perspective view of FIG.
II-II direction arrow view, FIG. 3 is a front view showing the stopper plate of FIG. 1, FIG. 4, FIG. 5, and FIG. 6 are operation explanatory views of FIG. In the figure, 2 is a workbench, 3 is a receiving surface, 4 is a receiving member, 5 is a bracket, 6 is a pressing surface, 7 is a pressing member, 8 is a supporting portion, 9 is a horizontal pin, 10 is a stopper plate, and 14 is a spring. , 18 is a section of leather.

Claims (1)

[Scope of utility model registration request] 1. A sheet material end portion folding device for folding back a sheet material end portion uniformly with a required width, wherein a top surface provided at one end of a work table has a flat surface and has a folding width of at least the sheet material end portion. A pressing member having a pressing surface extending upward with a width substantially the same as the folding width, and a pressing surface of the pressing member being flush with the receiving surface. A connecting portion that connects the pressing member to the receiving member such that the pressing member and the pressing surface rotate about respective adjacent edges of the pressing member in a state of being adjacent to the receiving member, and a side surface of the pressing member opposite to the adjacent edge. And a stopper plate urged by a spring in a direction in which the spring always protrudes, and a sheet material end folding device.