JP3785097B2 - String for screen presser for screen door - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a net-holding string-like material in which an insect screen is stretched on a window frame such as an aluminum sash frame for screen doors.
[0002]
[Prior art]
A screen door with an insect screen stretched on a window frame such as an aluminum sash for screen doors. The pushing net is fixed and stretched with a material.
Currently, there are four types of screen fixing grooves for screen sashes, depending on the size of screen doors and aluminum sash manufacturers, with 3.5mm, 4.5mm, 5.5mm and 6.8mm groove widths. The string-like object (usually called “net pressing rubber”) has a thickness corresponding to each groove width. In addition, the netting rubber has a plurality of streak-like grooves formed on the surface of the hollow string-like material. When the net is pressed and fixed into the fixing groove by the net holding rubber, the net is prevented from being scraped off by the frictional resistance between the net and the net pressing rubber by the streak-like groove provided on the surface of the net pressing rubber. .
[0003]
[Problems to be solved by the invention]
If the insect screen is damaged or if there is a hole in it, it is necessary to use a rubber for holding the net that has a thickness corresponding to the corresponding groove width when replacing the net with a new one. There are various groove widths for the mesh fixing groove as described above, and the groove width may differ depending on the aluminum sash screen door frame to be re-tensioned. Prepare rubber for pressing the screen with various thicknesses corresponding to the groove width. Was necessary.
[0004]
The present invention provides a net presser string that can be applied to various groove widths with a single type of net presser string without requiring preparation of a net presser string of various thicknesses. Is.
[0005]
[Means for Solving the Problems]
That is, the present invention is (1) on the outer peripheral surface of the hollow string-like object, at least one cross-sectional shape having a height of 0.3 mm to 1.5 mm extending continuously in the longitudinal direction is round . The linear protrusion is formed integrally with a narrower neck than the protrusion, and the linear protrusion is formed so as to be peeled off from the neck. The present invention relates to a net presser string.
[0006]
In the present invention, (2) on the outer peripheral surface of the hollow string-like material, at least two cross-sectional shapes having a height of 0.3 mm to 1.5 mm extending continuously in the longitudinal direction are round . The linear protrusions are integrally formed through a neck portion narrower than the protrusions, and the linear protrusions are formed so as to be detached from the neck portion so as to be removable. A net-holding string-like object characterized in that at least one streak-like groove-like projection having a mountain-like cross section is continuously provided in the longitudinal direction on the outer peripheral surface of the hollow string-like object between the protrusions. About.
[0007]
The present invention also relates to (3) a net-holding string-like object according to (1) or (2), wherein 3 to 9 linear protrusions are arranged at equal intervals.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The net-holding string-like object (hereinafter referred to as “net-holding rubber”) according to the present invention is (1) 0.3 mm to 1. mm extending continuously in the longitudinal direction on the outer peripheral surface of the hollow string-like substance. At least one linear projection having a round cross-sectional shape having a height of 5 mm is integrally formed through a neck portion narrower than the projection, and the linear projection is A net presser rubber formed so as to be peeled off from the neck portion , or (2) a height of 0.3 mm to 1.5 mm continuously extending in the longitudinal direction on the outer peripheral surface of the hollow string-like object And at least two linear projections having a round cross-sectional shape are integrally formed through a neck portion narrower than the projection, and the linear projections are formed from the neck portion. peeling detachably are formed, at least one on the outer peripheral surface of the hollow strands of material between the linear projections Surface shape is rubber web presser chevron-shaped stripe groove-like projection is provided continuously in the longitudinal direction.
[0011]
The netting rubber according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a cross-sectional view showing an example of an embodiment of the product of the present invention, and FIG. 2 is a cross-sectional view showing an example of another embodiment of the product of the present invention. FIG. 3 is a cross-sectional view showing an example of a conventional product.
[0012]
1 and 2, 1 is a hollow string-like material, 2 is a hollow portion, 3 is a linear projection, and 4 is a streak-like projection. Moreover, in FIG. 3, 11 shows a hollow string-like thing, 22 shows a hollow part, respectively, 5 shows a stripe-shaped protrusion.
As shown in FIG. 1 and FIG. 2, the netting rubber of the present invention has a linear protrusion 3 extending continuously in the longitudinal direction on the outer peripheral surface of a hollow string-like object via a neck portion 6. Arranged. The embodiment shown in FIG. 2 has a structure in which at least one streak-like projection 4 is continuously provided in the longitudinal direction between linear projections.
1 and 2, the linear protrusion 3 has a round cross-sectional shape. In the present invention, the linear protrusion 3 has a round cross-sectional shape. Various other shapes such as a diamond shape, an inverted triangle shape, an inverted trapezoidal shape, a square shape such as a square shape, and a bell shape can be used.
[0013]
In the rubber for net presser according to the present invention, the linear protrusion 3 can be easily peeled off and detached from the neck portion 6, and the groove for the net fixing groove provided on the aluminum sash frame in use. Corresponding to the width, there is an advantage that the linear protrusions 3 can be appropriately peeled off and used. Therefore, the outer diameter of the hollow string-like object 1 is set to an outer diameter substantially corresponding to the smallest groove width that is currently widely used, and the overall thickness of the net pressing rubber including the height of the linear protrusion 3 ( (Diameter) is made thick enough to accommodate the maximum groove width. Therefore, it is desirable that the linear protrusion 3 has a height of usually 0.3 mm to 1.5 mm, preferably 0.5 mm to 0.7 mm.
[0014]
In addition, at least one linear protrusion 3 is provided on the outer circumferential surface of the hollow string 1, but it is preferable to provide two or more, more preferably three or more, and 5 to 6 It is particularly preferable to provide it. The number of the linear protrusions 3 is such that the overall thickness of the net pressing rubber including the height of the linear protrusions 3 corresponds to the maximum groove width of the net fixing net grooves. Although it is determined by the outer diameter, the shape and size (height) of the linear protrusion 3, 3 to 9 are generally preferable ranges. In the embodiment shown in FIG. 1, that is, in the embodiment in which only the linear protrusion 3 is provided on the outer peripheral surface of the hollow string-like object 1, the height of the linear protrusion 3 is adopted in the present invention. It is preferable that the height is relatively high from the viewpoint of the function of holding down the net and the function and effect.
[0015]
In the embodiment shown in FIG. 2, that is, in the structure in which the streak-like projection 4 is formed between the linear projections 3, the streak-like projection 4 has a mountain shape in its cross section. Is preferred. The height of the peak of the streak-like projection 4 is preferably about 0.2 mm to 1.0 mm. Further, the number of the line groove-shaped protrusions 4 is appropriately changed according to the number of the line protrusions 3, and when the number of the line protrusions 3 is small, the line grooves disposed between the line protrusions. A relatively large number of the protrusions 4 are provided. When the net is pushed into the net fixing net groove, the streak groove-like projection 4 increases the frictional resistance with the net together with the linear projection 3 and more firmly prevents the net from being rubbed through the net groove. Since it has an operational effect, the structure shown in FIG. 2 is a preferred embodiment.
In the case of the structure shown in FIG. 1, when the linear protrusion 3 is peeled off from the neck portion 6, the remaining neck portion together with the remaining linear protrusion 3 and the net pushed into the mesh groove Since it acts to show frictional resistance, the net does not easily rub through the net groove.
[0016]
Usually, when pressing the net into the net fixing net groove, the net pressing rubber is pushed into the net groove while being twisted and the hollow portion 2 is crushed. As the rubber for net presser according to the present invention, rubber, soft synthetic resin, for example, soft and elastic material such as soft vinyl chloride is generally used. In the rubber for net presser according to the present invention, the hollow string 1 itself and the linear protrusion 3 provided on the outer peripheral surface thereof are soft and elastic, and the neck portion 6 is also made of the same material and is soft and elastic. Since the linear protrusion 3 easily falls down at the neck portion 6, the operation of pushing the net into the net groove is easy. On the other hand, after being pushed into the mesh groove, the net is pushed into the groove due to the elasticity indicated by the material, so that the linear protrusion 3 is pushed into the mesh and prevents the mesh from rubbing through the mesh groove. The net can be firmly fixed.
[0017]
The netting rubber of the present invention can be easily molded by an extrusion molding method. That is, by extruding a melt such as a vinyl chloride resin into a string from a hollow ring forming die provided with a groove for forming a linear protrusion 3 attached to the tip of a normal extruder. Can be molded. Further, by providing a streak groove in the outer peripheral part forming portion of the hollow ring forming die, the streak groove-like protrusion 4 can be formed on the outer peripheral surface of the hollow string-like object 1.
[0018]
【The invention's effect】
The rubber for net presser according to the present invention has a structure in which the linear protrusions 3 continuous in the longitudinal direction are disposed on the outer peripheral surface of the hollow string-like object 1 as described above, and the linear protrusions 3 can be easily peeled off from the outer peripheral surface of the hollow string-like material 1, so that the linear protrusion 3 is appropriately removed according to the mesh fixing groove width to be used and adapted to the mesh fixing groove width. Can be used as a thickness. Therefore, it is not necessary to prepare various types of net pressing rubbers corresponding to the widths of the net fixing grooves of various sizes provided on the aluminum sash frame. It has the advantage that it can respond to various groove widths.
In addition, the rubber for net presser according to the present invention is provided with at least one streak-like projection 4 on the outer peripheral surface of the hollow string 1 between the linear projections 3 continuous in the longitudinal direction. When the net is pushed into the net fixing net groove, the linear protrusions 3 and the streak groove-like protrusions 4 interact with each other, and there is an effect that the net is prevented from being scraped through the net grooves.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an example of an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing an example of another embodiment of the present invention.
FIG. 3 is a cross-sectional view showing an example of a conventional product.
[Explanation of symbols]
1 ・ ・ Hollow string 2 ・ ・ Hollow 3 ・ ・ Linear projection 4 ・ ・ Striped groove projection

Claims (3)

On the outer peripheral surface of the hollow string-like object, at least one linear protrusion having a height of 0.3 mm to 1.5 mm extending continuously in the longitudinal direction is rounded from the protrusion. A net-holding string-like object characterized in that it is integrally formed through a narrow neck part, and the linear protrusion is formed so as to be peeled off from the neck part . On the outer peripheral surface of the hollow strands of material, the linear projections of at least two cross-sectional shape rounded with a height of 0.3mm~1.5mm extending continuously in the longitudinal direction than the protruding Okoshibutsu The linear projections are formed so as to be detached from the neck portion and can be detached from the neck portion, and the hollow string-like material between the linear projections is formed. A stringer for presser foot, wherein at least one streak-like projection having a mountain-like cross-sectional shape is continuously provided in the longitudinal direction on the outer peripheral surface. The string-like object for presser foot according to claim 1 or 2, wherein 3 to 9 linear protrusions are arranged at equal intervals.

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