JPH0639454U - Tension frame for silk printing - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention prevents bulging due to distortion and cracking or buckling of each corner of a stretched frame formed of an aluminum frame, and is required when stretched. It is possible to provide a stretched frame that retains the amount of deflection for a long period of time and is highly durable. [Structure] In a rectangular stretched frame 10 composed of a vertical frame 11 and a horizontal frame 12, each of the frames 11 and 12 is formed into a rectangular tube in cross section, and each of the frames 11 and 12 is formed to have the same width. And formed integrally with an aluminum material, and further, one lateral frame 12a of the lateral frames 12 is formed with a length l ₁ longer than the length l ₂ of the other lateral frame 12b by l ₃ minutes. In addition, R portions 14a and 14b are provided on the inner peripheral surface and the outer peripheral surface of each corner portion 13 of each frame 11 and 12, respectively.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame for silk cloth used for silk printing, for example, printing for forming a circuit pattern on a printed wiring board.

[0002]

[Prior art]

 Conventionally, a frame body used for silk printing is formed by a rectangular aluminum frame 1 in a plane as shown in FIG. When a gauze (not shown) is stretched over this, an adhesive is applied to the surfaces of the vertical frame 2 and the horizontal frame 3 of the aluminum frame 1 and the vertical and horizontal frames 2 and 3 are bent inside. A gauze (not shown) is stretched under the condition of no wear (shown by a dotted line in the figure), and the gauze itself is adhered while being fastened in a state where tension is applied in a direction opposite to the bending direction of the aluminum frame 1. It is stretched by curing the agent.

[0003]

[Problems to be solved by the device]

 Therefore, in order to stretch the gauze on the aluminum frame 1 in a state in which the required tension is applied, it is necessary to bend the gauze and to endure the tension of the gauze after the gauze and repeat the process. It is required to have a strength that can cope with tension. However, in the aluminum frame 1, both the vertical and horizontal frames 2 and 3 are formed into a rectangular tubular cross section, and the inner and outer peripheral surfaces 4a and 4b of each corner 4 are formed substantially at right angles. .

Due to such a configuration, the bending force of the bending device at the time of tensioning the cloth and the tension of the gauze in the tensioned state are applied reciprocally, so that the inner and outer peripheral surfaces 4a and 4b of each corner 4 are distorted. As a result, the outer periphery 4b of the same portion 4 is cracked, or the surface of each corner portion 4 is bulged due to buckling, etc., which is a major cause of the unusability of the aluminum frame 1.

Therefore, the present invention has been made by focusing on the problems of the aluminum frame 1 having the above-described conventional structure. It absorbs the strain at each corner of the aluminum frame, and the bulge due to cracking or buckling. The purpose of the present invention is to provide a durable silk cloth frame for silk printing, which can prevent bending and maintain a required amount of deflection for a long period of time.

[0006]

[Means and Actions for Solving the Problems]

The silk-screen stretcher frame of the present invention is a rectangular stretcher frame 10 composed of a vertical frame 11 and a horizontal frame 12, in which the cross-sectional shape of each of the frames 11 and 12 is formed into a rectangular tube shape and each of the frames 11 and 11. 12 are formed to have the same width and are integrally formed of an aluminum material, and one lateral frame 12a of the lateral frames 12 has a length l ₂ from the length l ₂ of the other lateral frame 12b. Deflection and tension when stretched, which is formed by a length l ₁ that is ₃ minutes longer and is provided by providing R portions 14a and 14b on the inner and outer peripheral surfaces of the corner portions 13 of the frames 11 and 12, respectively. The strain due to the tension of the later gauze is absorbed and relaxed by the difference in the length of the lateral frames 12a, 12b and the inner and outer peripheral surface R portions 14a, 14b of the corner portion 13.

[0007]

[Embodiment 1] Hereinafter, an embodiment of a silk cloth stretch frame according to the present invention will be described with reference to the drawings. 1 is a plan view showing a first embodiment of the present invention, and FIG. 2 is an enlarged sectional view taken along the line AA in FIG.

In the figure, 10 is a tension frame, and this tension frame 10 has a rectangular configuration in which the length of the vertical frame 11 is longer than the length of the horizontal frame 12 and the inner circumference of each corner 13 is formed. It is formed by providing R portions 14a and 14b on the surface and the outer peripheral surface. Further, one horizontal frame 12a of the horizontal frames 12 is formed to have a length l ₁ longer by l ₃ than the length l ₂ of the other horizontal frame 12b.

As shown in FIG. 2, both the vertical frame 11 and the horizontal frame 12 are formed in a rectangular tube shape in cross section, are formed to have substantially the same width, and are integrally formed of an aluminum material. It was done.

[0010]

Second Embodiment FIG. 3 is a plan view showing a second embodiment of the present invention. The stretched frame 20 in the figure has R portions 24a, 24b formed on the inner and outer peripheral surfaces of three corner portions 23a, 23b, 23c among the respective corner portions 23 of the vertical frame 21 and the horizontal frame 22. It shows an embodiment in which the vertical frame 21 and the horizontal frame 22 are formed in a rectangular shape having the same length, and the width of the vertical frame 21 is wider than that of the horizontal frame 22.

Further, in the first embodiment, the horizontal frame 12a is formed to be short, but in the present embodiment, the vertical frame 21a is formed to be longer than the length of the other vertical frame 21b. The configuration of is the same as that of the first embodiment.

Although the corner portion 23d is formed with a slight radius, it is different in shape from the other corner portions 23a, 23b, and 23c.

[0013]

Third Embodiment FIG. 4 is a plan view showing a third embodiment of the present invention. The tension frame 30 in the embodiment is different from the tension frame 20 in the second embodiment in that the reinforcing frame 31 is provided between the vertical frames 21a and 21b, and other configurations are the same as those in the second embodiment. The same parts are designated by the same reference numerals and the description thereof will be omitted.

In each of the above embodiments, the R portions 14a, 14b, 24a, 24b are provided at all corners 13 or at three corners 23a, 23b, 23c. It is also possible to form two R-shaped corners facing each other by forming R sections similar to the R sections 14a, 14b, 24a, 24b in Examples 1 to 3 and about each example. Shows the case where the R portions are provided on both the inner and outer peripheral surfaces of each corner portion 13, 23. Examples thereof may be provided, or a specific corner may be provided on both the inner and outer circumferences.

Further, the shape of each R portion 14 and 24 is not limited to the shape of each embodiment, and is performed by providing a specific R portion between the inner and outer peripheral surfaces or a specific inner and outer peripheral surface. Examples of can be mentioned.

Further, in the vertical frame and the horizontal frame in each of the embodiments, the case where one vertical frame or the horizontal frame facing each other is formed shorter than that of the other is shown, but a rectangular or rectangular gauze having the same length is used. Of course, it is also possible to carry out by a tension frame.

In addition, regarding the width of the vertical frame and the horizontal frame, an example in which both of them have the same width and the vertical frame is wide is shown, but the horizontal frame is formed wider than the vertical frame, or In addition to the configuration in which the width of the frame and the width of the horizontal frame are different from each other, an example in which the widths of the vertical frames or the horizontal frames facing each other are different from each other can be given.

Further, the cross-sectional shapes of the vertical frame and the horizontal frame are not limited to the configuration shown in FIG. Examples can be given in which the frame plates 18 are formed by being provided and, if necessary, the frame plates 18 are not formed to have the same thickness but different thicknesses.

[0019]

[Effect of device]

As is clear from the above description, according to the stretched frame of the present invention, in the rectangular stretched frame 10 including the vertical frame 11 and the horizontal frame 12, the cross-sectional shape of each of the frames 11 and 12 is a rectangular tube. And each of the frames 11 and 12 are formed to have the same width, and are integrally formed of an aluminum material. By forming the frame 12b with a length l ₁ longer than the length l ₂ by l _{3 and} providing R portions 14a and 14b on the inner and outer peripheral surfaces of the corners 13 of the frames 11 and 12, respectively. Since it is configured, it is possible to absorb and relax the flexure when tensioning the gauze and the strain caused by the tension of the gauze after it is stretched, which improves the accuracy of the gauze and stabilizes it, and it can withstand repeated and long-term use. It has the effect of.

[Brief description of drawings]

FIG. 1 is a plan view of a gauze frame of the present invention.

FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 3 is a plan view of another embodiment different from FIG.

FIG. 4 is a plan view of an embodiment different from FIG.

FIG. 5 is a plan view of a conventional upholstery frame.

[Explanation of symbols]

 10, 20, 30 Shaft frame 11, 21 Vertical frame 12, 22 Horizontal frame 13, 23 Corner part 14a, 14b, 24a, 24b R part

Claims (1)

[Scope of utility model registration request] 1. A rectangular stretched frame 10 comprising a vertical frame 11 and a horizontal frame 12, wherein each of the frames 11 and 12 is formed into a rectangular tube in cross section and the widths of the frames 11 and 12 are made equal. forming Te, and integrally formed by aluminum material, further, the lateral frame one of the horizontal frame 12a of the other lateral frame 12b length l ₂ from l ₃ minutes longer length l ₁ of the 12 And a R-shaped portion 14a, 14b formed on the inner peripheral surface and the outer peripheral surface of each corner portion 13 of each frame 11, 12, respectively.