Screen device

Abstract

To improve an adjustment convenience in adjusting the tightness of a drawstring upon request thereof such that the adjustment can be completed by simply adjusting a rotating member on the side of a cylinder using a tool, without interfering with any other members during such a process.SOLUTION: A screen device includes: a cylinder, a movable frame, two first frame members, the cylinder, and the movable frame being arranged between the two first frame members, a scroll bar provided on the cylinder, a screen arranged between the scroll bar and the movable frame, and at least one rotating member being arranged inside the cylinder, and at least one pull string passing through the movable frame, at least one end of the pull string passing through the cylinder from the first frame member and then tied to the rotating member, the rotating member being arranged on the side of the cylinder.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a screen device, and more particularly to a screen device that can be positioned anywhere.

Background Art

[0002] In a house or an office, in order to achieve purposes such as sunshade, shielding, or prevention of entry of outdoor mosquitoes and dust into the room, almost all buildings are provided with a screen device at their openings. The current screen devices are roughly classified into two types: flat type and hidden type. However, since the current hidden type screen has multiple functions such as shielding and storage at the same time, it tends to gradually replace the flat type screen device. Currently, the most common hidden type screen mainly achieves effects such as sunshade and shielding by winding up the screen door with a scroll bar and pulling out the screen door by pulling a movable rod in the screen structure. Furthermore, in all conventional hidden type screens, a plurality of drawstrings and drawstring adjusting devices are additionally provided in the structure. The drawstring penetrates through the movable rod, and the drawstring adjusting device adjusts the tightening degree of the drawstring, so that the movable rod and the screen door in the hidden type screen can have the function of being positioned anywhere. Although the conventional hidden type screen can achieve the desired functions, there are the following problems in use.

[0003] First, as in the invention patent No. I684422 in Taiwan, China, the drawstring adjusting devices in conventional hidden type screens are all attached inside the frame body. However, since the inside of the frame body is always the path for the screen and the movable frame to be deployed or stored, when adjusting the drawstring by entering the drawstring adjusting device with tools in a conventional hidden type screen, it is always obstructed by the screen or the movable frame, making the adjustment inconvenient. Moreover, the wider the screen is, the more prominent this problem becomes. Second, the frame material in the conventional retractable screen often requires cooperation with additional pneumatic tools or electric tools during assembly to complete the assembly of the conventional retractable screen. However, when operating in an environment without power or air filling facilities, the power of the tools may run out or the air pressure may be insufficient, often impeding the progress of the construction work. Third, since the scroll bar cylinder in the conventional retractable screen is often assembled to the outer frame by a screw fixing method, when it is necessary to remove the scroll bar cylinder for maintaining or cleaning the conventional retractable screen, the scroll bar cylinder can only be removed by loosening the screw fixing assembly with tools, which not only wastes labor costs but also is difficult to remove. Fourth, when the conventional retractable screen is used for the opening of a wide building, a scroll bar with a large winding force is often arranged to wind up a large-area screen and a movable frame. However, due to such a structural arrangement, the deployed screen is displaced under the large winding force of the scroll bar, and problems such as light leakage occurring in the conventional retractable screen, reduction of shielding, and inability to prevent mosquitoes or dust from the outside from entering the room are likely to occur.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The main object of the present invention is to provide a mechanism for adjusting the drawstring outside the scroll bar cylinder, so that when it is necessary to adjust the tightening degree of the drawstring, it only needs to be operated with tools outside the scroll bar cylinder, and there is no obstruction of any member in the process, thus avoiding the problem of being difficult to adjust in the prior art, and also making it possible that the adjustment process is not limited by the size of the width of the screen. Another main object of the present invention is to provide a convex rib and its corresponding fitting groove in the assembly structure of the frame material, and by assembling the convex rib and the fitting groove together, it is possible to achieve the effect of quickly and conveniently assembling the frame material, and it can be quickly locked and completed without the cooperation of tools, and further to fundamentally prevent the delay or obstruction of construction progress that occurs in the prior art when working in an environment without the provision of electricity or air filling facilities. Yet another main object of the present invention is to provide an attachment member between the cylindrical body and the outer frame, and to combine an engagement portion of the attachment member with an engagement portion of the cylindrical body, thereby enabling the cylindrical body to be attached and detached without the use of any tools, thereby further improving the convenience of attachment and detachment. Another main objective of the present invention is to provide a positioning rod on the movable frame, the end of which abuts against the adjacent frame material, so that the unfolded screen and the movable frame will not be pulled back even when subjected to a large winding force of the scroll bar, thereby improving problems associated with conventional hidden screens, such as light leakage, reduced shielding, or the inability to prevent mosquitoes or dust from outside from entering the room. [Means for solving the problem]

[0005] The technical means used in the present invention are as follows: the screen device includes a cylinder, a movable frame, and two first frame members, the cylinder and the movable frame are disposed between the two first frame members, a scroll bar is disposed within the cylinder, a screen is disposed between the scroll bar and the movable frame, at least one rotating member is disposed within the cylinder, at least one drawstring is threaded through the movable frame, and at least one end of the drawstring is tied to the rotating member after passing through the cylinder from the first frame member. The screen device includes a cylindrical body, a movable frame, and two first frame members. The cylindrical body and the movable frame are provided between these first frame members. A scroll bar is provided inside the cylindrical body. A screen is provided between the scroll bar and the movable frame. An attachment seat is provided inside the movable frame. A swing member and at least one slider are accommodated inside the attachment seat. A push rod is provided on the slider in the direction of the swing member, and one end of the push rod can abut against the swing member. The screen device includes a cylindrical body, a movable frame, and two first frame members. The cylindrical body and the movable frame are provided between these first frame members. A scroll bar is provided inside the cylindrical body. A screen is provided between the scroll bar and the movable frame. The cylindrical body is assembled to either an outer frame or an adjacent wall by a plurality of attachment members.

Brief Description of the Drawings

[0006]

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Figure 10

Best Mode for Carrying Out the Invention

[0007] As shown in FIG. 1, the first preferred embodiment of the screen device of the present invention includes two first frame members 11, a cylindrical body 12 provided at one end of these first frame members 11, a second frame member 13 provided on the side of these first frame members 11 opposite to the cylindrical body 12, a movable frame 14 provided between these first frame members 11, and a screen 15 connected between the movable frame 14 and the cylindrical body 12. A plurality of convex ribs 131 are provided at positions adjacent to these first frame members 11 of the second frame member 13, and a plurality of corresponding fitting grooves 111 are provided at positions of these first frame members 11 facing the convex ribs 131 of the second frame member 13. By using the method in which these convex ribs 131 and these fitting grooves 111 are assembled with each other, not only can these first frame members 11 and the second frame member 13 be quickly combined, but also when the assembly work is carried out in an environment without providing power or air filling equipment, this embodiment can be quickly locked and completed without the cooperation of tools, without delaying the progress of the construction. Further, in this embodiment, the two first frame members 11 can be set at different heights, and one of the frame members 11 can be arranged on the ground in the form of a low rail.

[0008] As shown in FIGS. 1 to 3, inside the cylinder 12, there are provided a scroll bar 21 for winding up the screen 15, two rotating members 22 respectively provided at both opposite ends of the cylinder 12, two lid bodies 23 respectively adjacent to these first frame members 11, and two cover plates 24 respectively covering the lid bodies 23. Since the same mechanism is provided at both opposite ends of the cylinder 12, for the convenience of explanation, in FIGS. 2 and 3, only the mechanism configuration at one end will be described. The lid body 23 is provided with a pivot groove 231, a hollow portion 232 spaced apart from the pivot groove 231, a through hole 233 leading to the pivot groove 231, and a hole opening 234. The rotating member 22 is pivotally provided in the pivot groove 231, and two tooth portions 221 spaced apart from each other along the axial direction are peripherally provided thereon. The position of the hollow portion 232 corresponds to these tooth portions 221 of the rotating member 22, and two elastic stoppers 241 are respectively provided at positions of the cover plate 24 facing these tooth portions 221 so as to generate a stop effect of restricting the position step by step when these tooth portions 221 rotate.

[0009] As shown in FIGS. 3 and 4, two pulling strings 3 penetrate through the movable frame 14, and there is a handle 141 for gripping and pulling. One end of each pulling string 3 is fixed at a position adjacent to the second frame member 13 of the first frame member 11 respectively. The other end of each pulling string 3 penetrates through the movable frame 14, intersects within the movable frame 14, reaches from the end of the movable frame 14 to the first frame member 11, penetrates through the cylinder 12, and then penetrates through the corresponding cover 23 through the orifice 234 of the cylinder 12 on the same side as the first frame member 11, and is further tied to the rotating member 22 provided in the pivot groove 231 of the cover 23. One end of the scroll bar 21 is inserted into the cylinder 12. A gear 211 is fitted on the scroll bar 21 inserted into the cover 12, and a worm 212 is engaged with the gear 211. When the pulling string 3 is too loose or too tight, a tool can be used to reach the rotating member 22 through the through hole 233. Elastic stoppers 241 are respectively provided at positions of the cover plate 24 facing these tooth portions 221 of the rotating member 22 so as to generate a stop effect of restricting the positions of these tooth portions 221 step by step when the rotating member 22 rotates. Thus, the tightening degree of the pulling string 3 can be adjusted by the rotating member 22, preventing the movable frame 14 from being distorted due to the pulling string 3 being too loose or too tight, and ensuring the function of the movable frame 14 of being positionable anywhere. Also, when the screen 15 is too loose or too tight, when the worm 212 rotates, the gear 211 can be driven to rotate the scroll bar 21, so that the screen 15 can be adjusted to have an appropriate tension, ensuring the flatness of the screen 15 and enabling the screen 15 to be wound around the scroll bar 21.

[0010] As shown in FIGS. 2 to 4, since the mechanisms for adjusting these pull cords 3 are all provided on the lid body 23 and the lid body 23 is provided outside the cylindrical body 12, when it is necessary to adjust the pull cord 3, the rotating member 22 can be adjusted simply by inserting a tool into the through hole 233 of the lid body 23. Moreover, since there is no interference from any member during the adjustment process, there is no problem of smooth adjustment, and it is not difficult to adjust even a wide screen device.

[0011] As shown in FIGS. 4 and 5, FIG. 5 is a second preferred embodiment of the screen device of the present invention. The differences between this second preferred embodiment and the first preferred embodiment are as follows. An attachment seat 4 is provided inside the movable frame 14. Inside the attachment seat 4, a swing member 41, a knob 42 provided on the swing member 41, two sliders 43 respectively provided on both opposite sides of the swing member 41, two buffers 44 respectively provided between the swing member 41 and the sliders 43, and two elastic members 45 respectively provided between these buffers 44 and these sliders 43 are accommodated. The knob 42 is provided on the handle 141 of the movable frame 14.

[0012] Further, on the slider 43, a push rod 431 facing the direction of the swing member 41, at least one slide rail 432 provided on the side, a positioning rod 433 extending toward the opening at one end of the movable frame 14, an insertion groove 434 facing the positioning rod 433, and two snap fits 436 respectively provided on both opposite sides are provided. Since a through hole 440 is provided in the buffer 44, one end of the push rod 431 can abut against the swing member 41 through the through hole 440. A slide groove 40 is provided at a position facing the at least one slide rail 432 of the attachment seat 4, and a stop portion 401 for providing the at least one slide rail 432 is provided at one end of the slide groove 40 so that the slider 43 can slide back and forth within a certain range along the direction of the slide groove 40.

[0013] In addition, the positioning rod 433 located in the insertion groove 434 is provided with two hook grooves 439 located on both opposite sides. At positions of the slider 43 facing these hook grooves 439, two notches 438 are respectively provided. And at positions of the slider 43 facing these notches 438, these snap fits 436 are respectively provided. By engaging these positioning rods 433 with the notches 438 by these snap fits 436, these positioning rods 433 are respectively connected to these sliders 43, and these positioning rods 433 can move correspondingly with the reciprocating slide of these sliders 43.

[0014] As shown in FIGS. 6 to 9, the swing member 41 has cam structures on both sides corresponding to these push rods 431 respectively, and positioning recesses 112 (shown in FIG. 9) are provided at positions facing the respective positioning rods 433 of each of the first frame members 11 so that the respective positioning rods 433 abut thereon to limit the position. As shown in FIG. 6, in the normal state, since these positioning rods 433 connected to these sliders 43 do not abut on these positioning recesses 112, the movable frame 14 can be freely pulled between these first frame members 11. Also, as shown in FIG. 7, when the movable frame 14 is pulled again and these positioning rods 433 abut on the protruding edges of these positioning recesses 112, these positioning rods 433 are pushed up by the protruding edges, and these sliders 43 are slid in the direction of the swing member 41, the push rod 431 also extends into the swing member 41, and these elastic members 45 are compressed to accumulate elastic restoring force. Further, as shown in FIG. 8, when these positioning rods 433 enter these positioning recesses 112 beyond the protruding edges, the elastic restoring force of these elastic members 45 pushes these sliders 43 in the opposite direction, and these positioning rods 433 are driven so as to completely abut on and be pushed into the positioning recesses 112. Next, when the knob 42 is rotated to synchronously rotate the swing member 41, the cam structure of the swing member 41 abuts on one end of the push rod 431, so that the slider 43, the push rod 431 and the positioning rod 433 are restricted between the positioning recess 112 and the swing member 41, and further the movement of the movable frame 14 is restricted. Therefore, when applied to a wide screen device, the action of the positioning rod 433 abutting on the positioning recess 112 can prevent the movable frame 14 from being pulled back by the rewinding force of the scroll bar 21.

[0015] FIG. 10 shows a third preferred embodiment of the screen device of the present invention. The difference between the third preferred embodiment and the first and second preferred embodiments is that the cylindrical body 12 is assembled to either the outer frame 6 or an adjacent wall by a plurality of mounting members 5 (only one is shown in FIG. 10). In this third preferred embodiment, the situation where the cylindrical body 12 is detachably attached to the outer frame 6 will be described. Each mounting member 5 has two connecting portions 51 and two engaging portions 52 extending outward from these connecting portions 51 respectively. These connecting portions 51 are fixedly provided on the inner edge surface of the outer frame 6 by a plurality of screws 91. Each engaging portion 52 is specifically an engaging groove. At positions of the cylindrical body 12 facing these engaging portions 52, two engaging portions 121 are respectively provided. Each engaging portion 121 is specifically a hook, so that it can engage with the above-mentioned engaging groove. Thereby, the working process of attaching the cylindrical body 12 to the outer frame 6 can be quickly completed, which can not only save labor costs and assembly time, but also, during maintenance or cleaning, the cylindrical body 12 can be removed without the cooperation of any tools, having the effect of improving the convenience of attachment and detachment.

[0016] From the above, the cylindrical body 12 of the present invention is detachably attached to the outer frame 6, and the scroll bar 21 is provided in the cylindrical body 12. And the rotating member 22 is appropriately integrated and provided in the cylindrical body 12 compared with the prior art. Therefore, not only can the scroll bar 21 be appropriately accommodated, but also the purpose of simplification and integration can be achieved for the necessary mechanisms having a drawstring adjustment function and a switch function. When the basic functions of pulling, positioning, and locking can be achieved, additional designs for other functions are also facilitated, effectively improving the potential value of the research and development product. Therefore, the object of the present invention can be surely achieved. The above are only examples of the present invention and do not limit the scope of implementation of the present invention. Any simple equivalent changes and modifications made based on the scope of claims of the present invention and the content of the patent specification all belong to the scope of claims of the present invention.

Claims

1. A screen device comprising a cylinder, a movable frame, and two first frame members, wherein the cylinder and the movable frame are provided between these first frame members, a scroll bar is provided in the cylinder, a screen is provided between the scroll bar and the movable frame, a mounting seat is provided in the movable frame, a swing member and at least one slider are accommodated in the mounting seat, a push rod is provided on the slider in the direction of the swing member, and one end of the push rod is capable of abutting against the swing member.

2. A buffer is provided between the swing member and each slider, a through hole is provided in the buffer, one end of the push rod abuts against the swing member through the through hole, and an elastic member is provided between the buffer and the slider. The screen device according to Claim 1, characterized in that.

3. At least one slide rail is provided on the slider, and a slide groove is provided at a position of the mounting seat facing the at least one slide rail. The screen device according to Claim 1, characterized in that.

4. The slider is provided with a positioning rod extending toward an opening at one end of the movable frame. The screen device according to Claim 1, characterized in that.

5. An insertion groove is provided at a position facing the positioning rod of the slider, at least one hook groove is provided on the positioning rod located in the insertion groove, a notch is provided at a position facing the hook groove of the slider, and a snap fit is provided at a position facing the notch of the slider. The screen device according to Claim 4, characterized in that.

6. A stop portion is provided at one end of the slide groove. The screen device according to Claim 5, characterized in that.

7. At least one positioning recess is provided at a position of the first frame member facing the positioning rod. The screen device according to Claim 4, characterized in that.

8. The swing member is provided with a knob. The screen device according to Claim 1, characterized in that.

9. The screen device according to claim 1, further comprising a second frame member between these first frame members, the second frame member being located on the side opposite to the cylindrical body, at least one convex rib being provided at a position adjacent to these first frame members of the second frame member, and a fitting groove being provided at a position of these first frame members facing the convex rib of the second frame member.

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