TW407183B - Steel tambour - Google Patents

Abstract

The present invention can avoid the metal noise of strip screen of steel tambour so it could make the operation easier. The present invention employs elastic cushion to cover the guiding path of the strip screen. It uses two elliptical cylinder hinges to compose the neighbored strips of the upper and lower positions to make the roller could move horizontally. Therefore, it could connect the screen made of synthetic resin with the upper end strips.

Description

V. Description of the invention (1) ί loo '1. The present invention relates to a light-weight rolling door arranged at an opening of a building such as a house or a shop on a low floor.以往 In the past, rolling doors include: remodeled rolling doors with large openings of thick strips formed by steel rolling, thin strips of steel formed by rolling or non-recording steel, and shaped bars made of ingots. Lightweight rolling door. The strip has an s-shaped cross section. That is, cylindrical hinges having groove-like openings on both peripheral edges of the plate are formed with facing openings on the front and back surfaces of the slat surface, respectively. The adjacent v method introduces the opposing hinges from the slot-shaped openings to form a concentric circle shape that embraces each other to form a continuous chain shape: curved in two directions outside the tangential plane. You Yan curtain. However, the conventional rolling door is expanding, causing metallic noise. Especially ... instead of wood: the metal sound will become noisy during the quiet time. Ancient usage%, caused by early slab construction and reel construction. = The main reason is that the rolling door is arranged at a height that cannot be touched by hand, and the bar is ^ = The main reason is that the rolling door box uses an operating lever, which is quite numb. In addition, Ϊ = pull down to close _, when it must be turned on, it must be against the slat-port = tube of the torsion spring bias pressure from the bottom to amplify the metal noise. Tick 17-speed push up to roll up the collection screen. One of the problems is described by the strip, the roll door 5 composed of these two components, the roll door box for storing the roll, and the roll screen of the roll that the roll has collected. Starting from jin. The outer diameter of the screen roller, which is shaped outside the roll door box of the reel, is relatively large, and the installation of the guide rail on the wall surface is: larger. Guide screen = _11 box, the location of the screen roller, and instructions (2)

The stack structure is closely related to the cause of metal noise. That is, when the longitudinal guide rail is installed and installed on the wall surface, the upper jealousy box may be installed below the estimated size of the outer diameter of the screen roller, resulting in the downward guide strip being drawn toward the guide rail and the outer periphery of the screen roller. The tangent to the left of the screen 'With the increase and decrease of the size of the screen's outer circumference, the screen shifts to the right of the guide rail. Therefore, the strip of the slat screen needs to be wound in the direction of the upper space of the guide rail in the direction of the reel and folded and guided to the port on the guide rail, and the screen is stored in the roll door box and the vertical guide. In the case of a wall, the strip screen is wound outward or inward relative to the roll. Therefore, it has a structure in which the battens buckle in both directions. As shown above, the battens are on the front and back sides of the batten surface! Cylindrical hinges with groove-shaped openings at the ends of both sides are formed, and the adjacent battens are rounded by the front side cylindrical hinge and the back side. The cylinder hinges form a concentric circle by embracing each other from the opening to the cylinder circle of the office chain. The cylinder hinge waves and engages with the inner peripheral surface and the outer peripheral surface to form a continuous strip screen, which can be expanded. Strip, and it can be bent in both left and right directions. The α® coin chain keeps concentric circles with each other. At this point, the plates are offset in the up-down direction and out-of-plane direction to cause play (〇 丨 3》,). ^ ’4, metal hinges are generated when cylinder hinges collide with each other. Non-concentric circles The cylindrical hinges are connected to each other by a point of the rounded shoulders, that is, along the tangent line, and the adjacent plates are connected. Therefore, the structure becomes easy to bend. Also, the fitting structure of the cylinder hinges cannot be a two-point support, so the hinge on one side cannot restrict the rotation of the hinge on the other side. However, when the slatted screen of the expanded sag is subjected to out-of-plane pressure such as wind pressure,

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V. Description of the invention ⑶ " I The strips cannot maintain concentric circles, and will be laterally offset and bent. During the period when the clearance is eliminated and the adjacent strips become one with each other to resist external forces, the strips undergo a large deflection. The overall flexural strength of the batten screen is poor, so each individual batten needs a flexural strength above a fixed value. In general, in addition to the cylindrical hinge, each plate needs to be reinforced with a bending resistance. However, when a plurality of concave-convex lines are formed by expanding the hanging slatted screen, the concave-convex not only becomes a main cause of noise described later, but also easily contaminates with dust. There is no fan-shaped funnel opening on the outer surface of the screen roll, which contains Gansu structure and contains the reel, and when the slat screen is rolled, touch 'continuous metal occurs, from the bottom of the screen, and the roll collection ratio comes from below. The pushing space part is bent due to the strip, and the explanation is about the closed door structure of the storage roll. That is, the support shaft of the strength (the two ends of a reel and the intermediate rod are connected to the outer rolls of the reel rolls, and the screen of the screen is leaking. The torsional speed of the impact sound will be widened and it will get stuck in the above. The upper end of the guide is inside or directly below the rolling door box, and when it is below, the guide of the upper end of the guide and the screen is guided. Therefore, the bucket opening at the upper end of the guide is guided by the oblique angle. When the convex part is connected to the funnel mouth alternately, the slatted screen is pushed up and the biasing force of the winding storage spring is deteriorated, the winding speed will be between the upper end of the guide and the screen stick, causing a failure of the opening and closing operation. According to the n-type issue, the same piece of corpse has a supporting steel slat screen and the total weight does not bend. The iron pipe with a diameter of $ 3〇_ ~ 4〇_ is inserted through a plurality of central parts to make it free. Turn the state, and by the card periphery. The coil-shaped twist inserted on both sides of the support shaft is one of the main causes of the problem. The roll structure and the roll of the conventional roll door are generally as follows.

Page 6 V. Description of the invention (4) One end of the force spring

When supporting the screen of the vehicle, the force spring connection is fixed, and the two ends of the box must support one of the two screens of the screen. It is fixed on the storage in advance. The outer diameter is larger than the screen roller. The cover is larger, so the longitudinal edge of the water is not square, and the screen is also fixed on the reel. In the above structure, the engaging rod of the reel is used to: after the biasing force, the slat screen is rolled up to the slat screen, and the circle of the large cooperation (normally 080mm) becomes larger, And the collection roll ° In addition, because the level of the roll supporting the roll is subject to the safety level of the door box, the self-rolling method will remain vertical, and the longitudinal edge will be too much to contact the inner wall of the guide groove. The phenomenon of unbalanced rolls is not supported on the supporting shaft. The reel roll hand is turned on the upper end of the reel. The industry is very troublesome. The support shaft of the rolling door box that winds the storage bar is fixed. Sliding noise occurs longitudinally on both sides. At the same time, take the strip, twist and roll the c plate screen outside diameter ruled by the roll door. The guide of the slatted bar is open and closed, and the rolling door box with a large outer diameter is often unable to be buried in the upper end wall surface of the second part of the building. When it is installed, it protrudes a lot from the wall surface, and the appearance is conspicuous and bulky. Will damage the beauty of the building. If you want to make a roll door with a larger outer diameter into a molded product such as an aluminum extruded member, the outer diameter will be too large to be molded or the price will be too high. Therefore, roll boxes are generally made of thin plates such as colored steel plates. . However, a thin-walled rolling door box with a large flat surface is easily deformed when subjected to a slight external pressure. Care must be taken during handling and installation. In addition, when the rain falls on the rolling door box protruding from the wall surface, the echo of the rain sound in the box will be amplified to form noise. /

Page 7

-0 ^ 183 _____ ^ Therefore, in the present invention, flexible mats such as woolen cloths arranged on longitudinal guides are protruded from the upper end of the longitudinal guide rails to the rolls of the conventionally constructed roll doors and the upper ends of the longitudinal guides. Guide the missing part, and set it on the outer periphery of the screen roller. After half a circle, connect the balance weight at the front end and hang down, and set the endless guide to extend to the lower end of the vertical guide. At the same time, roll along the slat screen. The door ^ rjq and Er Erhuan extend along the tangent track of the smooth curve to alleviate the metal noise caused by the two ends of the longitudinal guide rail and the funnel mouth contact, and also prevent the slat from bending in the recessed space of the guide bow I . j. In the slatted cylinder hinge of the slab screen, the ellipses with groove-shaped openings = the edges of the two ends of the slatted cylindrical plate are wound on the side relative to the slatted noodle plate: ^ = formed on the peripheral side Openings in the same direction 'between adjacent strips: one-shaped hinge: t-cylinder hinge can be wrapped in the elliptical plate on the other side of the same winding direction ^ When the screen of this strip expands and hangs from the roll, 彳Eliminate the clearance between the inner and outer circumferential surfaces of each piece, and use the oval cylindrical hinges to connect each other with the outer and second rotating surfaces, so that the hinge on one side restricts the outer universal rotation of the hinge on the other side. It ’s curved like a whole sheet of metal. In the opposite direction, the direction is not the same-In addition, on the rolls, it is beneficial to reduce the size of the roll-out box that holds the rolls. And the rolling door two = 2. The masking is further divided into opening i. At the two ends of the rolling door box, the volume: = the diameter of the dagger, 丨, can be moved axially by two directions of aluminum, and the longitudinal direction: '' is pivotally supported to guide grooves along the front and rear and the outer peripheral side of the screen roller. On the wall, her second life was above the wall of the C-section guide groove. Extend outside the screen roller to the center of the reel within 2 doors.

V. Description of the invention (6) ^ 5: 2 f, so that the screen is often moved up and down along the tangent line, and by using Si vertical 2 = J line horizontal level adjustment 'to adjust the open lower end shape. = 有 = End and belt · 5, and a barrelless turning 'force' is set down on it, which can be transmitted between the biasing force of the coil spring through the pulley :; of which, the weight of the screen and the accompanying increase Twist the screen of the ㈣i action 2 external force. With a slight operating force, you can push f | # βp f to prevent the expansion of the metal noise from accelerating the slat screen from the bottom up. In addition, from the room, the jj guest is fixed to the open and drooping. The batten screen ^ with the c-shaped cross section of the tongue is the upper end batten with a flat engaging rod guide with a wide interval, which can longitudinally close the two sides. That is, the upper end of the cloth curtain j: The cloth curtain of the clothes can be detached and assembled in a way that can be freely folded ^ glued with a flat resin ring, which is connected to the screen, and the curtain will hang down. The method is fitted to the indoor side of the horizontal c-screen of the bottom of the screen of the [type-carrying surface slot plate screen] of the engaging lever. The lower end of the cloth curtain is rolled up from the curtain and the screen of the slat to fix the bottom handle and hang it down. One layer, 'x, can be used as a buffer invention when the metal strips collide. Because the invention has a punched piece protruding and extended to the guide structure, the flexibility is smoothed by smoothing the curve during the implementation: line At the same time, the "track J track missing part" at the same time, in the rolling door box along the top of the funnel mouth contact ν lead plate screen, to ease the longitudinal guide 'bending stuck on the guide track's lack of :: to prevent c sound. It can prevent the batten and the inside of the batten. It also forms the cylinder hinge of the batten i07l83 V. Description of the invention (7)

It is drawn in the manner of enveloping an oval circle M with a slot-shaped opening. 2 = Hinge: The adjacent slat is bent westward in the direction of each other. In addition, the slat cannot be miniaturized along the opposite box to the winding. Dreaming that picking up fir 1 2 3 4 5 can raise and lower the screen of the π board containing the reel. At the same time, the f: f: enough operation bar can be used to prevent the noise caused by virtue of taking. First, explain the outline of the present invention on the outer periphery of the screen ㈣ of the guide rail 3, such as: opening a roll and inserting a flexible buffer member provided with a wool cloth 7 protruding from the funnel opening to extend the groove wall of the guide f. After a half-circle of the screen, the two former sub-frame shepherds roll around U. Guidance on the road lacking part 6_ # 有 单 疋 的 Balance weight δ sagging, the track is connected to Λ cloth 7, making the curve and the guide U- ": ί Tongquan 'strip screen is cut along the green: straight except Prevent or reduce the intersection of the screen unevenness: being chosen by Ping as "belonging to the sound" can also prevent the screen from bending and jamming. It can also prevent the screen from colliding and colliding. In addition, it can also block the opening and closing coils! Fixed to the roll The door box. "Replaced with a coil spring *, and 1r 2 7 '' is used as the luxury department 2 of the scope of patent application: Bottom; as shown by Γ, in the conventional strip structure, the same strip There is a gap at the time when the structure 3 ϊ ϊ ΓΓ shifts, which is more than the chain 9 ^ shape and along 4 is the circumference of the concentric circle with a tangent line = 5 > From the time of the hemp, the clearance of each plate becomes and Shui Shuang 407183 five 2. Description of the invention (8); the barrel hinge A, " is formed with openings in the same direction with respect to the slat 14 ^. The ellipse-shaped plate 14 is wound around the inner peripheral surface j with cylindrical hinges a and b. When the slat is wound, the other hinge a at the front end of the hinge is wrapped freely, H, the cylindrical hinge b will be round, and the chain A will be rotated around the cylindrical hinges a and b. When the ice is drooping, the inner arc C of the elliptical hinge can be freely disassembled, and the arc D and the corresponding cylindrical hinge b are combined to enclose the cylindrical hinge a. = 疋 Rotates from the bent state to vertical in the slat 14: = With clearance 5 1, the surface of the arc slides on the top surface of the inner arc c, and at the same time, the outer arc D is pushed slightly upward to make the hinge The play between A and b ^ 'j The slight play in the cylindrical hinge b can be made small by the length direction of the strip 14 and become extremely small. And 5 at this time, the looseness in the up-down direction of the adjacent boards can be absorbed by bending, bending or deflection, and the hinges A and B and the cylindrical hinges a and b are divided by two. It constitutes a lever using two-point support, so it has more joint strength than Xi: Inner arcs C,!) Contact. Therefore, it not only saves the manpower and time required for the tangent support structure of the feather f plate, but also makes the screen D strip apply bending compensation to reduce the pollution caused by dust adhesion. : = Minus) becomes flat when the screen is pushed up and rolled up, it is known that it will expand and sag, only the lower batten is compressed and raised, push the second: [there are more cars and more force. The slatted screen of the present invention results from the fact that the upper thrust =: = during operation can be directly transmitted to the s roll near the reel. Under the effect of small force when winding, the application of the present invention will be explained. Figure 2 shows the rolling door box 30 so that it can be freely used.

Reel and roll of item 3 of patent scope are stored in aluminum frame by disassembly

The rolling door 1L 丄 1 4 c M pa of the present invention is solidified.

The Taoist screen roller 1 4R is made, so when the batten screen is made smaller, the “axis moving plate 20” is— ”I. 5. Description of the invention (ΙΟ) —The stretch spring 23 is pulled forward, and at the same time, The light outer periphery of the screen is supported by the guide guide groove wall 29a, and the slat screen 14S expands and hangs along the downward tangent line. Conversely, when the slat screen 14s is rolled and stored, the screen roller's outer periphery pushes the guide groove wall 29a ° when the radius becomes larger, the shaft will repeat the movement of each of the small moving plates 20 back to the volume of the μ box 3 0 Center (left of Figure 2). FIG. 3 is an exploded perspective view of the rolling door box 30 of FIG. 2. The rolling door box 3 is fixed to the brackets 3iR and 3R by angle steels 33 and 34. Grooves 19S 'are formed on the peripheral surface of the reel 19 and are fixed to the two ends of the torsion force by the terminals 35 and 36. 7 are stored inwardly on both sides of the reel. The strip 35a of the spring terminal π on one side is hooked with the groove 19s, and the spring terminal 36 on the one side is freely rotatable: the roll 19 is pivotally supported. The front shaft of the spring terminal 36 protrudes from both ends of the wide shaft 19, and is pivotally supported by the shaft hole 20a of the shaft moving plate 20. The front end 36a is formed with a square hole 36b to be fitted with the square shaft 39 of the crank handle 38 and a groove 36c for freely attaching and detaching the engaging piece 40 for restricting idling. Moon dagger ^ ^ The moving plate 20 is also formed with a slot 2c of an engaging piece 40, and the engaging piece

The groove 36c of the end shaft 36a and the groove of the shaft moving plate are fitted with a bismuth span to limit the idling of the front shaft 36a. A Before the engaging piece 40 and the reel 丨 9 with the above structure are fitted, first wind the strip screen completely, insert the square shaft 39 of the crank handle 38 into the square hole of the front shaft, and turn it to impart torque. The spring 37 is biased. At the same time, after the hinge 40 is fitted into the grooves 36c and 20c, it is fixed with a small screw. Next, pull out: the crank handle 38 to complete the rolling door assembly operation. In addition, the torsion spring 37. The pre-winding system expands, the dead weight of the hanging slat screen 14s and the biasing force increased by the pre-winding-large torsion spring 3 7 can also adjust the biasing force slightly;

V. Description of the invention (11) In order to be able to rewind the batten screen for 14s briskly. — 407183 Wheel, Γ: Use it to set the belt of the operating cable with the 3 roll door to fix the action to open and close the operation panel screen &. The spring terminal 4i of the 136a structure I bounces the yellow 37 is composed of an enlarged shaft portion 41a and a small diameter shaft: 6 "combined" the enlarged shaft portion 41a pivots the reel 19 in a freely rotatable manner: 2: The diameter shaft portion 36a passes The pole valley 42a of the pulley 42 is supported in the poles, and is supported by the shaft hole 20a of the shaft moving plate 20 as described above. The method of skin repellence is inserted in the coil 19. The outer peripheral surface of the wheel hub is similar to the convex strip. The groove 19s on the inner peripheral surface of the reel is fitted, so that Xiao can restrict the idler f 42 and the reel 19. The pulley 42 pivoted by the spring terminal 41 in a freely movable manner rotates integrally with the reel. Since the self-roller 19 expands and suspends the hanging slat screen 1 4s, the weight of the torsion spring 37 and the biasing force of the torsion spring 37 are roughly balanced, so the roll 19 will lose balance and rotate when subjected to a small external force. The pull-down action of the cable 43 can be used to open and close the slat screen for 14 seconds. In the case where the rolling door box 30 is arranged at a height that cannot be reached by hand, the door can be easily rolled by using the operating cable hanging down. The opening and closing operation. Compared with the action of pushing the slat screen up and down for 4s from below, the slat has less bending, even if the torque is The degradation of the biasing force of the spring 37 does not cause metallic sound, so it can smoothly take up the coil. Figure 5 is a sectional view of the slat screen 1 4 s of the metal impact sound prevention device of the scope of patent application No. 5. When the slat screen is fully opened for 4 s, the flat engagement 椁 44 with the C-shaped cross-section guide groove 44c with the tongue is fixed to the slat exposed from the indoor side of the roll door box with an adhesive or the like. At the same time, in the guide groove 44c, the tree on the upper edge of the polyester curtain 46 will be bonded with double-sided tape.

40718.Ί V. Description of the invention (12) Grease engagement lever 4 S IV -r A .. The edge is close to the batten screen and can be freely disassembled, and it hangs at the lower end of the curtain 46. Cloth curtain 46ί: the end; at the height position of the transverse plate 47, the bottom handle 48 is fixed and the visibility δ is the interval between the longitudinal guides on the two sides, and is set to,, 褒 for easy cleaning. Because the curtain 46 and the batten screen 14s — guard against μ = Ϊ form a layer ', it becomes a cushioning piece for the collision between the 4 battens when the batten screen is rolled up for 14 s, which can prevent or mitigate the metal collision -χφ * Λγ * q purlin; fe t, cloth curtain 4 6 can relax metal 2 when the rolling door is opened for use. During the summer ', the radiant heat is reduced. During the winter stretch, the thermal resistance can be increased by the air layer in between, thereby improving the thermal insulation effect. Effect of the invention + The structure of the panel screen = anti :::: of = can smoothly guide the screen. The screen forms a two-layer curtain to improve the heat insulation effect. Another ::: It is a unique hard appearance. In addition, when winding up the collection, 〖可 m :: alleviates ... because it will not bend like the conventional strip, ϊ clearance, which can eliminate the space between the strips ... Commitment to Huai Tune i can make the slat screen always move along with ten moves. Because the vertical of the vertical edge of the screen can be easily adjusted =: ;; the track can be moved up and down to open and close, and the door phase can be compactly wound around the roll can also be miniaturized. On the same day, its wall collection was greeted with high delivery efficiency and reduced costs. "A brief question, can also mention 407183 V. Description of the invention (13) Simple illustration of the diagram

Fig. 1 is a sectional view of a strip of a rolling door according to the present invention. Fig. 2 is a longitudinal sectional view of a rolling door box portion of the rolling door of the present invention. Fig. 3 is an exploded perspective view of the rolling door of the present invention. Fig. 4 and Fig. 3-An exploded perspective view of a rolling door according to the present invention q Fig. 5 is a longitudinal sectional view of a slat screen of the rolling door according to the present invention. Fig. 6 is a schematic side sectional view of the present invention. FIG. 7 is an explanatory diagram of a conventional strip. Symbol description: batten board; 1 S ~ batten screen; 1 R ~ longitudinal guide; 4 ~ reel; 5 ~ roll door box; 6 ~ lack of space for guide track 32 ~ goat seven cloth; 8 ~ balance weight; 9 ~ Cylinder hinge; Cylinder hinge, 11 and 12 bends; 14 ~ slatted; 14S ~ slatted screen; i5 ~ middle frame dagger · η lean! 1 α. Α * ΑΛ-., „3 chain screen rollers; 2 ~ Upper funnel opening = Marina;: ~ Storage bag; 18 ... m moving plate, 20a ~ shaft hole; 21 ~ guide support plate; 2U ~ bearing; 23 ~ tension spring; 24 ~ adjusting screw; 25 ~ sliding piece = 2 ~~ Axle hole; 27 ~ Convex bevel; 28 ~ Concave; 29 ~ Longitudinal thread, 3 &bracket; 33, 34 ~ Angle steel; 35 ~ Bomb: Bullet 3; 0 ~ Rolling door box; 36 ~ Spring terminal 36a ~ shaft part; 37 ~ torsion spring, convex 39 ~ square shaft; 40 ~ engaging piece; 4 spring terminal; 41 8 ~ crank handle 42 ~ belt pulley; 42a ~ protrusion; 43 ~ operating rope ;, large shaft Guide grooves 45 to flat rods; 46 to life curtains; 47 to horizontal plates; lower closing rods b to cylinder hinges; A and R to bottom rails; covers; 19 to rolls, 19s to slots; 20 to shaft 31R Hand 44c oval hinge; C ~ inner arc 'a', U ~ outer arc; 40718, ^ V. Description of the invention (14) (51, (52 ~ clearance).

Page 17

Claims (1)

Six 'application for patent scope 1 · —Steel roll door flexible cushioning piece has a lack of space from the outer periphery of the longitudinal plate screen roller and the longitudinal guide way. After being wound for half a circle, it is fixed and fixed to the roll door box rail by the front end. Set up continuous unexplained rolling door in the lack of space along the smooth guide rails can also prevent opening and closing. 2. A steel rolling door into the 'slabs around the slat around the roll at the same time on the inner periphery at the same time When the opening of the oval-shaped circle 5 turns into the cylindrical hinge of the same side and the other side hangs, the elliptical peripheral arc of one can be freed by the inner peripheral arc top of the free person. It is not connected like a chain along a metal plate. It is connected with one steel rolling door chain to the other to reduce contact. Each plate is gold. 'It will guide the upper part of the rail and balance the inner wall surface. The curved curve of the plate is subject to the shape of the cylindrical hinge on the side of the length of the strip. The circular shape is disassembled and assembled. The circle is restricted by the elliptical key and the wool cloth arranged on the longitudinal guide is wound. Tip & Extend into the empty space wound around the end of the roll The screen of the slatted screen is set on the outer periphery of the screen roll, the weight is suspended, or the coil spring is connected, and the screen guide is guided from the outer peripheral surface of the screen roll to the longitudinal direction, and the slatted screen is often tangent and guided. It is used to prevent the song or jamming 'and then cause metal noise obstruction. The screen is continuously connected by steel slatted plates, and the two ends are rolled into a cylindrical hinge with an elliptical cross-section relative to the slatted surface, and the ends are provided with slot-shaped openings, so that adjacent slatted plates are connected on one side. The cylinder hinge package is fitted, and the outer arc of the cylinder hinge is expanded in the self-winding state of the slat, and the other hinge is f-type tightly sealed. The bottom of the outer periphery arc is a cylinder that is slightly pushed upward in the hinge by the bed cylinder hinge. The rotation of the hinge on the other side of the inner and outer peripheral surface of the hinge, that is, the opposite direction bends Φ, and it is like 'the hollow steel pipe is used as a roll, and its two ends are inside Page 18 6. The patent application scope of the torsion end plate is that the other lead plate is in touch and the curtain tug end is ineffective. The other part of the torsion spring is stored, and the way is pivoted to slide freely. The guide bar of the screen is higher than the outer periphery of the screen. The guide groove uses the vertical edge of the roll. Open 5. — A kind of force spring, the elastic extension at one end is used to guide the grooves on the two sides of the upper end of the screen of the support plate fitting roll in a square movement manner, so that the screen wall is straight along the level of the lower tube. degree. Please patent the spring terminal to move the plate of the hollow wheel, and pull the lower bar scale, and then turn the operation to close the copper roll door 407183 = force the way to engage the front end, ^ make the roll, 21 t way The pivoting roll c moving plate is combined with a guide support plate with a hole that can move the roll, so as to fine-tune the roll's free fixing and winding, and guide it in the longitudinal direction, and slide the edge C Type guide rail: the side can be extended at the upper end in the rolling door box: the roll will be two act? The axis of the roll can be used on the outer periphery to expand and rewind the slat screen often in the η direction: The perimeter mechanism adjusts and expands the steel roll door described in item 3 of the hanging slat screen. Among them, the small Diameter, and insert the bullet I ', after the hub, insert the pivot support belt 鲶 f into the self-belt to prevent it from idling: the spring terminal operation of the hub ·, ϋ i 3 are erected on the pulley ::: by pass to The rotating screen of the pulley and the seed tube is opened and lowered by the upper and lower sides of the rotating screen: the force is used to make the equipment located at a high place in the self-rolling Zhao expansion and opening -44) 71 · 83-- A flat engaging rod having a c-shaped cross-section with a tongue is fixed on the inner side of the board. After the flat ring is fixed at the upper edge of the curtain with a wide interval on both sides of the longitudinal guide, it is guided with the c-shaped cross-section of the engaging rod. The slot can be freely detached and snapped together to hang the cloth curtain. The lower edge of the groove is fixed at the bottom of the horizontal plate near the bottom of the slat screen and hangs down. The cloth curtain and the slat screen wrap around the roll together. It is wound into two layers to prevent metal cladding from directly colliding with each other. \ /