JP3589639B2 - Method for manufacturing blind ladder code - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method and an apparatus for manufacturing a ladder cord for controlling a slat inclination state of a light-blocking blind disposed on a window side or the like.
[0002]
[Prior art]
A blind for light shielding attached to a window frame or the like is lowered for the purpose of preventing peeping into the room from outside of the window and preventing direct sunlight from entering the room, and is blocked by a slat plate. However, when the blinds were completely lowered, the room was dark and reading was impossible without turning on the lights. Therefore, it is possible to prevent direct sunlight and peeping by adjusting the degree of inclination of the slats arranged in multiple stages of the blind, but it is possible to maintain the brightness of the room by taking in external light. As this operation method, the inclination of the slat was adjusted by manually operating the ladder cord.
[0003]
In the conventional blind, as shown in FIG. 8, when the ladder cord is operated and the slat plate is horizontally opened as shown in FIG. 8B and completely opened in a state where the blind is completely lowered, direct sunlight is dazzling. In some cases, the lighting could not be reached to the interior of the room, or the lighting was adjusted by controlling the slat plate using a ladder code. As described above, generally, the lighting of the blind is performed manually by operating the slat plate, which is troublesome. For this reason, in recent years, in some cases, the inclination of the slat plate as well as the raising and lowering of the blind are automatically controlled by electric motor. Even if the blinds were automatically controlled, the entire slat plate could not be fully illuminated because the entire slat plate was uniformly inclined.
[0004]
As a solution to such a problem, for example, as described in Japanese Patent Application Laid-Open No. H11-195306, it is possible to always keep the lighting in the room in an optimum state, and to prevent the room from being too dazzling to the back of the room. Blinds have been proposed that can provide natural daylight even to the day.
This blind makes the degree of inclination of the slat plate on the ceiling side different from that of the bottom plate side. Such blinds allowed natural daylight to reach evenly from the window to the back of the room. However, various studies have been made on the ladder code used for the blind, but there has been no method for producing a suitable ladder code.
[0005]
[Problems to be solved by the invention]
As described above, in the conventional method, it is necessary to adjust the inclination of the slat plate by operating the ladder code each time the height position of the sun changes in the case of manual operation. Further, in the conventional method of automatically adjusting the inclination of the slat plate, the inclination is adjusted according to the height and time of the sun, but sufficient lighting cannot be obtained.
[0006]
In conventional blinds, the inclination angle of the slat plate is constant from top to bottom, so even if the opening is adjusted, there is a large difference between the illuminance at the window and the back of the room, or when the window is wide open to allow light to reach the back of the room. There was a problem that the operator was too dazzling. For example, as shown in FIG. 8 (b), the light was reflected by the slat plate and only the ceiling became bright, but the room was not illuminated deep inside. In order to solve such problems, development of a special blind ladder code is desired.
An object of the present invention is to provide a manufacturing method capable of easily manufacturing a blind ladder code capable of sufficiently taking in natural light.
[0007]
An object of the present invention is to provide a manufacturing method for efficiently manufacturing a ladder code having a window of a special shape in a short time in view of the above demand.
It is another object of the present invention to provide a ladder cord capable of adjusting a slat plate of a blind by changing a pitch interval of a horizontal string with respect to a front and a rear vertical string.
[0008]
[Means for Solving the Problems]
The object of the present invention is to stack a large number of slat plates between an upper end support member and a bottom plate, and stretch a horizontal cord between vertical cords arranged before and after the stack so as to keep each slat plate horizontal. In the method for manufacturing a ladder cord of a blind having been bridged, a ladder cord in which a horizontal cord is stretched at a predetermined pitch between two vertical cords arranged in parallel is continuously fed out, and the ladder code is squared. A plurality of processing members having a shape, with left and right lengths different from each other protruding from the surface, are arranged at predetermined intervals, and are carried into a heating furnace having a built-in heating source. In the above, the encircling window of the ladder cord formed by a horizontal cord is heated and conveyed while being closely fitted to the protruding tooth form of the processing member, and the shape of the enclosing window of the ladder code is the same as the tooth form of the processing member. Fix it as a shape and ladder Sent from the heating furnace is peeled off over de manufacturing method of blind ladder cord characterized by conveying cooled. In addition, this can be achieved by a configuration in which the pitch of the horizontal string of one vertical string is longer than the pitch of the horizontal string of the other vertical string in the square shape of the tooth shape.
[0009]
An object of the present invention is to provide a transport roller in which a large number of protrusions are arranged on a surface from which a ladder cord, in which a horizontal cord is stretched at a predetermined pitch between two vertical cords arranged in parallel, is unwound from the original winding. A processing member in which a large number of tooth forms with different lengths on the left and right are arranged in a square shape that fits with the surrounding window formed by the horizontal cord of the fed ladder cord, and this processing member is built in, and the processing member incorporates A heating furnace in which a heating source for heating the ladder code being conveyed and a control member for controlling the temperature in the furnace are arranged, and the ladder code in which the horizontal cord pitches of the left and right vertical cords processed in the heating furnace are different. Roller that unloads the ladder code from the heating furnace, and contacts the left and right vertical cords to be conveyed without meandering the ladder code. Proposed arrangement of many protrusions And the roller can be achieved by the configuration of the ladder cord manufacturing apparatus characterized by comprising a housing member for housing a ladder cord conveyed by the guide rollers.
[0010]
Further, the object is to arrange protrusions having different left and right lengths on a peripheral surface of a guide roller from a carry-out roller for carrying out a ladder code from the processing member of the heating furnace to a storage member, wherein the ladder code is a guide roller. This can be achieved by the configuration carried by the.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a method of manufacturing a blind ladder code according to the present invention will be described in detail with reference to the drawings based on an embodiment.
FIG. 1 is a schematic explanatory view of an apparatus showing an embodiment of a method for manufacturing a blind ladder code of the present invention. FIG. 2 is a side view and a front view of the transport roller of FIG. FIG. 3 is a side view and a front view of a processed member in which a large number of square tooth molds of FIG. 1 are arranged on a peripheral surface. FIG. 4 is a side view and a front view of the carry-out roller of FIG. FIG. 5 is an explanatory diagram of a guide roller according to an embodiment employed in the ladder code manufacturing apparatus of the present invention. FIG. 6 is a front view showing an embodiment of the ladder code of the present invention. 7A and 7B show the use state of the blind provided with the ladder cord of the present invention, wherein FIG. 7A is a state diagram when the slat plate is closed, and FIG. 7B is a state diagram when lighting is performed. FIGS. 8A and 8B show a state diagram of a conventional blind, in which FIG. 8A is a state diagram when a slat plate is closed, and FIG. 8B is a state diagram when lighting is performed.
[0012]
A method for manufacturing a ladder code according to the present invention will be described.
A blind ladder cord 1 as shown in FIG. 6 in which horizontal strings 3 connected at a predetermined pitch are arranged between two vertical strings 2 and 2 is fed out from the original winding M. The ladder code 1 is manufactured from synthetic fibers such as Tetron (trade name of Teijin Co., Ltd.), Techmilon (trade name of Mitsui Chemicals Co., Ltd.), and Dyneema (trade name of Toyobo Co., Ltd.). The ladder code 1 is unwound from the original winding M, is carried into the heating furnace 9 via the conveying roller 4, and is conveyed to the processing roller 5 which is a processing member of the heating furnace 9. On the surfaces of the conveying roller 4 and the processing roller 5, projections 7 and tooth molds 8 that fit into the surrounding window 6 formed by the horizontal cord 3 and the vertical cords 2 of the ladder cord 1 are arranged so as to protrude. The guide surfaces of the left and right vertical cords 2 of the transport roller 4 have the same diameter on the left and right (φA).
[0013]
The tooth form 8 of the processing roller 5 has a quadrangular shape and is formed so that the length of the surface contacting the vertical cord 2 is different on the left and right, and the diameter of the guide surface of the left and right vertical cords 2 is different. (ΦB> φC). That is, it has a step. For example, if the length of the left side of the tooth form 8 is 21.3 mm and the length of the right side is 21.1 mm, the pitch of the left and right horizontal cords 3 of the ladder cord 1 is 21.3 mm and 21.1 mm. The processing roller 5 is axially supported in a heating furnace 9. In the heating furnace 9, a heater 11 as a heating source and a control member 12 are arranged so that the temperature in the furnace becomes 180 to 205 ° C., and a blower 10 is installed so as to circulate the air inside. It is.
[0014]
The ladder cord 1 processed by the processing roller 5 in the heating furnace 9 is conveyed while sliding on the peripheral surface of a trapezoidal take-out roller 13 having a rounded tip, and is guided by a guide roller 14 and stored in a storage member 18. I do. There is a difference in the diameter of the guide surface for guiding the vertical cord 2 of the guide roller 14. On the peripheral surface of the guide roller 15, square protrusions 15a, 15a,... Having different lengths on the left and right are arranged, and the ladder code 1 is reliably conveyed. The diameter of the guide surface of the vertical cords 2 and 2 in the guide roller 15 has a step like the processing roller 5 (φD <φE).
[0015]
A method for manufacturing the ladder code thus configured will be described based on the apparatus shown in the drawings.
The main winding M of the ordinary ladder cord 1 made of synthetic fiber is fed out while the horizontal cord 3 of the ladder cord 1 is engaged with the projection 7 of the transport roller 4. The ladder code 1 fed by the transport roller 4 is carried into the heating furnace 9.
Inside the heating furnace 9, a heater 11 as a heating source is installed at the bottom. The blower 10 is arranged so that the air in the heating furnace 9 circulates and is blown to the heater 11. A regulating member 12 is provided so that the air heated by the heater 11 is uniformly blown to the surface of the processing roller 5. In the heating furnace 9, the processing roller 5 is controlled by a control member so as to have a predetermined temperature of 180 to 205 ° C.
[0016]
The ladder cord 1 carried into the heating furnace 9 closely fits the surrounding window 6 formed by the horizontal cord 3 to the tooth form 8 of the processing roller 5. The ladder code 1 is conveyed with the rotation of the processing roller 5 and is heated in the heating furnace 9 so that the ladder code 1 is processed. The ladder code 1 is conveyed with the rotation of the processing roller 5, and the position of the horizontal cord 3 is fixed in conformity with the shape of the tooth form 8 of the processing roller 5. The surface of the carry-out roller 13 is rounded (see FIG. 4), the ladder code 1 is conveyed along this surface, and the left and right vertical cords 2 are provided with guide rollers 14 having different guide surfaces with different diameters, and square projections. It is conveyed via the guide roller 15 which has been used. The ladder cord 1 processed into a predetermined shape is carried out of the heating furnace 9, guided by the transport rollers 13, the guide rollers 14, and the guide rollers 15 and stored in the storage member 16.
[0017]
The blind in which the ladder cord 1 manufactured as described above is mounted and the slat plate 17 is inserted between the upper support member 18 and the bottom plate 19 is configured as shown in FIG. A ladder code having a difference in pitch of the horizontal string 3 is provided, and the slat plate 17 is placed on the horizontal string 3.
FIG. 7A is a side view in which the slat plate 15 is shielded with the blind lowered to the lowermost part. In this state, natural light is not taken into the room and the room is completely blocked.
FIG. 7B is a side view showing a state in which natural light is taken in the room by operating the ladder code 1 of the blind. As described above, according to the ladder cord 1 of the present invention, the degree of inclination of the slat plate 17 is different between the ceiling side and the lower side, and the lighting up to the interior of the room is ideal.
[0018]
As described above, in the blind employing the ladder cord of the present invention, when the inclination of the slat plate is made horizontal on the ceiling side near the window, the inclination changes toward the bottom.
The sunlight from the outside of the window is reflected by the slat plate, and the upper slat plate goes to the ceiling at the back of the room, and the lower slat plate goes to the ceiling near the window.
[0019]
In the ladder code manufacturing apparatus of the present invention, a single processing roller 5 is installed in the embodiment shown in the drawings, but if a plurality of such processing rollers 5 are arranged in parallel, efficient manufacturing is achieved. be able to. Further, instead of the cylindrical processing roller, a roller having a tooth pattern disposed on a belt may be used.
[0020]
【The invention's effect】
According to the method for manufacturing a blind ladder cord of the present invention, the ladder cord having a different horizontal cord pitch with respect to the left and right vertical cords can be easily produced.
By employing this ladder code, it is possible to provide a blind capable of performing ideal lighting in a room.
[Brief description of the drawings]
FIG. 1 is a schematic explanatory view of an apparatus showing an embodiment of a method for manufacturing a blind ladder code of the present invention.
FIG. 2 is a side view and a front view of the transport roller of FIG.
3A and 3B are a side view and a front view of a processing member in which a large number of square tooth molds of FIG. 1 are arranged on a peripheral surface.
FIG. 4 is a side view and a front view of the discharge roller of FIG. 1;
FIG. 5 is an explanatory diagram of a guide roller according to an embodiment adopted in the ladder code manufacturing apparatus of the present invention.
FIG. 6 is a front view showing an embodiment of the ladder code of the present invention.
FIGS. 7A and 7B show a state of use of a blind provided with the ladder cord of the present invention, wherein FIG. 7A is a state diagram when a slat plate is closed, and FIG. 7B is a state diagram when lighting is performed.
FIGS. 8A and 8B are views showing a state of use of a conventional blind, in which FIG. 8A is a state when the slat plate is closed, and FIG. 8B is a state when light is being collected.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Ladder code 2 Vertical cord 3 Horizontal cord 4 Loading roller 5 Processing roller 6 Enclosure window 7 Projection 8 Teeth 9 Heating furnace 10 Blower 11 Heater 12 Restriction member 13 Unloading roller 14 Guide roller 15 Guide roller 16 Upper support member 17 Slat plate 18 Bottom plate 19 Storage member

Claims (4)

A blind ladder in which a number of slat plates are stacked between the upper end support member and the bottom plate, and horizontal strings are stretched between vertical strings arranged before and after the slat plates so as to keep each slat plate horizontal. In the method of manufacturing a cord,
A ladder cord having a horizontal string stretched at a predetermined pitch between two vertical strings arranged in parallel is continuously fed out,
This ladder cord is loaded into a heating furnace having a heating source built therein, with a large number of processing members arranged in a rectangular shape, having different left and right lengths protruding from the surface and arranged at predetermined intervals. And
In this heating furnace, the heating window is conveyed while the surrounding window of the ladder cord formed by a horizontal cord is closely fitted to the protruding tooth form of the processing member,
The shape of the surrounding window of the ladder code is fixed as the same shape as the tooth shape of the processing member, the ladder code is peeled from the tooth shape, carried out of the heating furnace, cooled, and transported. Ladder code manufacturing method. The method for manufacturing a blind ladder cord according to claim 1, wherein in the square shape of the tooth form, a pitch of a horizontal cord of one vertical cord is longer than a pitch of a horizontal cord of the other vertical cord. A transport roller in which a number of protrusions are arranged on the surface from which a ladder code, in which a horizontal cord is stretched at a predetermined pitch between two vertical cords arranged in parallel, is drawn from the original winding, A processed member in which a large number of tooth forms having different square lengths are arranged in a square shape that fits with the surrounding window formed by the horizontal cord,
A heating furnace incorporating this processing member, a heating source for heating the ladder code conveyed by the processing member and a control member for controlling the temperature in the furnace,
An unloading roller for unloading ladder codes having different pitches of the horizontal cords in the left and right vertical cords processed in the heating furnace from the heating furnace,
A guide roller in which the ladder code is in contact with the left and right vertical cords to be conveyed without meandering, and the diameter of each guide surface for guiding is changed, and a number of protrusions are arranged on a peripheral surface sandwiched between the guide surfaces,
A storage member for storing the ladder code conveyed by the guide roller,
An apparatus for manufacturing a ladder code, comprising: The protrusions having different lengths on the left and right sides are arranged on a peripheral surface of a guide roller from an unloading roller that unloads a ladder code from the processing member of the heating furnace to a storage member, and the ladder code is transported by the guide roller. The method for producing a blind ladder code according to claim 1 or 2, wherein:

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