TW201035667A - Brace structure of floor projection screen - Google Patents

Abstract

A brace structure of floor projection screen includes a base, two poles, a linkage and a rod. Every pole includes a top end, a bottom end and a guide trough. The bottom end of the poles is disposed on the base, and the poles intersect and form a cross. The linkage is disposed on the cross of the poles, and the linkage has wheels. The wheels are respectively placed in the guide troughs of the poles and adapted to roll in the guide troughs. The rod is connected to the poles and is adapted to adjust the poles. When the poles are adjusted by the rod, the wheels of the linkage roll in the guide trough.

Description

201035667 六 Ο 、 发明 发明 发明 发明 发明 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 [Prior Art] Please refer to Figure 1 for a bracket structure of a ground-drawing projection screen. - The bracket structure of the type of pull type projection screen has a base 110, a plurality of support rods 12 〇, a plurality of links ls 〇 and a tie rod. Each of the two ends of the support bar 120 is pivotally connected to one of the links i3〇#. The rods 12 are provided on the base 11〇 by the connecting rods (10), and the two supporting legs are mutually parental forks, and the parent fork is a joint point D1, and each of the branch rods (10) is provided at the interface point D1. Screw holes (not labeled), screws (9) pass through the two supports: 2 〇 screw holes, will make these slabs 丨 2. Position and match each other. The tie rods are disposed on the connecting rods 130 for stretching or pushing the connecting rods 130, and driving the supporting rods 120 to be stretched or pushed. tFig. 2 is a bracket of a ground-drawing projection screen that is different from that of the other. A bracket structure 200 of a ground-type projection screen has a plurality of tower poles 220 and a power, a guide sleeve 230 and a tie rod 240. 'Phase two six 220 are intertwined and hinged under the tie rod 240'. The two support rods are connected to the Μ210, and the two slabs 22Q are respectively hinged = 艮 楼 221, and the struts are moved to each other. The intersection is - the joint _ Ϊ 2A shown in the figure ' is the joint D2 using the guide sleeve 230 partial release -; 丨 7 cut rod 22G is provided - guide sleeve 23G, guide sleeve 230, 35 ' a shaft 236 The two guide sleeves 23 are hinged to each other, and the two swing sleeves a and the rotating shaft 236 are connected to each other. When the cup 24" is used to actuate the support rod 220 by the guide sleeve 230, the rotation shafts 236 of the two guide sleeves 230 are mutually deflected, and the angle θ between the two support rods 220 is constantly changed while sliding within 230 So that the stent structure 2 (5) can be stretched or compressed. However, the bracket structure in FIG. 1 is configured to be positioned and hinged, and when the two masts 120 are changed, the action between the pull rod 140 pulling the link 130 and the support structure (10) is restricted, and The bracket structure is caused by the brackets 200. The rods 220 of the conventional structure of the second embodiment are moved to each other by a movable guide sleeve, but the guide sleeve_hole shaft 236 is easily worn due to long-term use. The fixed joint D1 in the first picture of the rod causes the support of the day 1 ✓ tongue movement, and the avoidance flute 7 fsj is the guide in the technical field that is to be solved in the technical field. _ wear, [Summary] Curtain, the flexibility of the projection method suitable for the control of the pull screen, and the improvement of the structure of the bracket structure: and the advantages can be derived from the technology disclosed by the present invention In particular, the Ittt seed or other purposes, the present invention includes a base, and two are adapted to support a projection screen, the bracket is attached to the strut, the connecting member and the tie rod. 5 201035667 Two support rod seats ^ _ bottom end and a guide groove, is a joint. The drawbars can be directly connected to the joints, the joints of the 'f-bars, the plurality of joints, and the plurality of joints, which are disposed at both ends of the bridge, and have two ends, which are pivots. The end-to-end setting of the bridging portion is respectively set on one of the other shackles, the scorpion, and the fork stalk, and the bridging portion

G 〇 corresponds to the support rod groove: the other side of the rod 'and ', each roller is located in the object (four) - the roller abuts correspondingly falls on the corresponding guide groove ίΐί side = the rod is stationary, each of the connecting members - the roller bracket structure It is more possible to have at least = the upper end of the spring is placed on the basis weight so that the support rod does not have the weight of the curtain i to strengthen the unstructured stability. (4) The roller of the piece can continuously change the flexibility of the structure by guiding the angle at which the root cutting rods cross each other. However, since the roller is transported in the rolling mode, the friction between the roller and the guide groove is reduced, and the example of the present invention is smoother than the _ line. In addition, the connection is improved.岐 岐 ' ' 使得 支架 支架 支架 支架 支架 支架 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 【 实施 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 , will be clear. The directional terms mentioned in the following embodiments, for example, up, down, left, right, front or back, etc., are merely directions in which the phase is added. The terminology used is used to describe that it is not intended to limit the invention. Referring to the 3rd, it is a schematic diagram of a branch structure of the hybrid projection screen of the present invention. — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —

The Lai 31G has support legs 315 for working on the ground and stabilizing the bracket. The pull rod 34G provides a projection screen a to be hung thereon, wherein the projection screen (4) is a curtain. The base 310 and the tie rod 340 can be made of a metal material. The 321 320 has a top end 322 and a bottom end fork of the opposite frame 322, and the bottom end 321 is disposed on the secret seat 310 and the mutual intersection is ^32G. The combination of the mosquitoes is called a cross-section, and the intersection is: a joint 〇 3. The connecting member 33 is disposed at the joint of the two cutting rods. The connecting member 330 includes a plurality of rollers 336 (as shown in Fig. 4). Referring to Figures 4A and 4B, the cross-links of the two support rods 320 are joined to each other. Each of the support bars '325, the guide groove 325 has a first side purchase; * ^ 326 of the second side 327, and the first side edge and the second side edge 32 ^ Γ are placed on the edge of the support bar. Each of the 杵 320 has another inward-inner mast 320 that does not have a guide groove 325. When the two support rods 320 are attached to each other, the appearance of the two poles 320 is approximately a ^ ^ Α 7 201035667, the figure _4C is not the same as the roller 336 of the connector 330 is located in the guide groove red. The rollers 336 of the connecting member 330 are respectively disposed at the edge of the first side 326 and the second side 327 336 of the sinister guide 325 and the first side 326 or the first of the guiding groove 325. There is a gap of 325 between the two flutes. In the figure, the roller 336 is abutted against the side 327 of the guide groove as an example. The distance of the groove l is preferably Μ to facilitate the running of the roller 336 in the guide groove 325, so that the visibility of the groove 25 is not too small. However, the limitation is that the roller is said to be stuck in the guide groove milk L5 diagram is the explosion diagram of the connecting member 33G. Connector = 7 joint 335, a plurality of rollers 336 and a plurality of shafts 337. The jumper 337 is disposed at each end of the jumper 335, and the second roller 336 is respectively connected to the transfer shaft. Referring again to the drawing, one end of the bridging portion 335 is disposed on the two of the two rods 32, and the other end of the bridging portion 335 is disposed on the other supporting rod 32, thereby making the bracket knot ^=t336 is located in its corresponding guiding slot 325. Since the connection (4) is hunted by the 5 port 335, the connection of the two support bars 32 is improved. Referring again to FIGS. 3 and 4A, in the present embodiment, the support rod % end 321 is coupled to the pole 311 of the base 31 ,, and the pivoting shaft 嗖 is placed and the pivot shaft 311 is in the way. The slider 312 slides so that the bottom end 321 of the support can be deflected and slid at the base 310. The top end 322 of the support engages with the pivoting shaft on the pull rod 34. In the process t of the two mutually opposite support rods 320 being driven by the tie rods 34G, the connecting rods are rolled in the guide grooves 325 of the support rods 320 along the first side edge or the first side edge 327. The connecting member 33 is slidably adjusted, and accordingly, the two supporting rods 320 are: = thus the connecting member 330 is opposed to the two supports (four). f is operated in the guide roller by the rolling method, which reduces the friction between the roller and the other, so that the bracket structure 300 runs more smoothly.时 When the connector county 320 is stretched, even the parent state 336 of the state is rolled against the corresponding guide groove 325 side 26, and the angle θ of the support rod 32 〇 in the vertical direction ^ 320 becomes larger. When the pulling rod 340 is pulled downward to drive the rod 320 to compress, the connecting member % 1 = two branches - the second side - the rolling branch is inclined, and at this time, the angle θ sandwiched by the supporting rod 320 becomes small. When the roller 335 connector 330 is retracted to a position on the second side 327 of the corresponding guide groove 325, the angle θ of the mast 320 is constant. In the present embodiment, the bracket structure has at least a spring 350. In the present embodiment, two springs are taken as an example. The other end of the spring % 3: upper spring 350 is disposed on the base 31. Two (four) 3 continents to provide support rods 32 〇 an upward branch will not be due to the weight of the projection screen A τ 吏 撺 撺 〇 〇 〇 〇 〇 〇 〇 稳定性 稳定性 稳定性 稳定性 稳定性 稳定性 稳定性 稳定性 稳定性 稳定性 稳定性 稳定性 稳定性 稳定性 稳定性 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四Early breeding 350 can be, for example, but not limited to, a pneumatic cartridge or a hydraulic pressure that can provide other articles with elastic function, such as compression springs and the like. f. In addition, the pedestal 310 further has a storage space S. When the support structure 3 〇〇 does not 201035667 =: Γ pushes down, so that the support _, the connection (four) =, the shape of the paste V, to facilitate the movement of the frame. The figure 'is a schematic diagram of the support structure of the pull-type projection screen of another embodiment of the present invention. - The type of ground pull type: including the base 61〇, two support rods 62〇, two joints = ::::r spring 65°. Its pleasure

In this embodiment, each of the swing rods 620 622, the two support rods 62 〇 及 and the top 鳊 joints ( 4 ) are disposed on the intersection, the mutual parent fork, and the bottom end 621 of the tandem palm rod 620 is borrowed The rod #02G can be made 2 at the base 610 by a pivotal pedestal _ pedestal_upper. _The top of the support bar (10)_the respective hinged rooting link 625 1.=The two links 630 share a pivotal shaft 641, and the tie rod cup 64 is connected to the rod member 620, so that the rod 40 can be moved relative to the rod 620. When pulled up, the top ends of the two support members 62 are gradually approaching each other, and the position of the f (four) is gradually slid upward, but the pivot shafts 6H and · do not need to be moved. The auxiliary _ has a branch foot 615 for adhering to the ground to stabilize the bracket structure 600. One end of each of the bullets 650 is disposed on the two supporting rods 62, and the other end of each spring (four) is disposed on the base (four), and the elastic (4) is used to provide the support rod 62〇-upward supporting force, so that The support rod 62〇* is lowered due to the excessive weight of the link 625 tie rod 640 and the support rod 62〇 itself to enhance the stability of the branch structure 600. 10 201035667 Optimum = the above-mentioned embodiment has at least the following - or some or all of the connecting member 330 of the roller 336 in the guide groove 325 along the guide 325 3 to the relative position between the support bar 320 The angle θ of the structure with height == is continually changed, so that the roller 336 of the support member 330 is frictionally applied to the guide groove 325, and the friction between the guide wheel 325 and the guide groove 325 is made. The branch wood, and the mouth structure 300 run more smoothly. By connecting the two interdigitated I 320 ' by the bridging portion 335 of the connecting member 330, the simplicity of the mounting structure of the bracket structure is improved.

The above description is only a preferred embodiment of the present invention, and can not be implemented by this limited use, that is, the simple equivalent change and modification of the patent scope and the Maoyue Valley in the present day. , are still within the scope of this patent. In addition, all of the objects or advantages or features disclosed in the present invention are not required to be met by the scope of the present invention. In addition, the abstract sections and headings are only used to assist in the search of patent documents and are not intended to limit the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing a structure of a conventional scaffolding projection screen. Figure 2 is a schematic illustration of another conventional scaffolding structure for a grounded projection screen. The Fig. 2A diagram is a partially enlarged schematic view showing a joint point where the conventional support rods cross each other. 201035667 (4) ^ f, is the invention of the forest "there is no intention of the support of the pull-type projection screen." Fig. 4A is an enlarged schematic view showing a joint point at which the support rods intersect each other in an embodiment of the present invention. Fig. 4B is an enlarged view of a support rod according to an embodiment of the present invention. Fig. 4C is a schematic view showing the roller of the connecting member in the guide groove according to an embodiment of the present invention. Ο

Figure 5 is a schematic exploded view of a connector of one embodiment of the present invention. Figure 6 is a schematic view showing the structure of a bracket of a ground-type projection screen according to another embodiment of the present invention. [Main component symbol description] Support structure 100, 200, 300, 600 Base 110, 210, 310, 610 Support rods 120, 220, 22, 320, 620 Link 130, 625 Pull rods 140, 240, 340, 640 Screws 150 Guide sleeve 230 hole 235 shaft 236 pivot shaft 311, 341, 611, 641 12 201035667 way 312 _ support foot 315, 615 bottom end 321, 621 top 322, 622 guide groove 325 first side 326 second side 327 0 connecting parts 330, 630

Jumper 335 Roller 336 Rotary shaft 337 Spring 350, 650 Projection screen A Joint point D Bu D2, D3

间距 Pitch L Storage space S Angle 垂直 Vertical direction V Horizontal direction Η 13

Claims (1)

201035667 VII, Shen Qing patent scope: The structure includes: L a bracket structure, suitable for supporting a projection screen, the bracket is connected with a base; two support rods each of the support rods have a top end, a side opposite to the bottom end - a guiding groove, the bottom end is disposed on the base rainbow and combined to form an intersection portion; the fork palm rods are connected to each other, and are disposed at a further portion of the support rods, and the connection includes a plurality of rollers 'These miscellaneous jobs _ the drum struts in the slot and are suitable for rolling in the guide slots; and the one thousand one pull rod 'connected to the (four) branch #4 (four) top of the support rods, when fighting The rod is scaled by the miscellaneous rods, and the parts are rolled in the guide grooves. Μ 2. If you apply for a patent scope! The bracket structure, wherein each of the slots has a first side and a second side, and the first side disc is disposed in parallel with the read lever, and when the pull rod drives the support rods When the roller is abutted against the corresponding first side of the guide groove; ## When the pull rod is stationary, each of the connecting members is on the side of the two sides of the scallop. 3. The bracket structure according to claim 2, wherein each of the Hr mirrors i is rolled in the guide groove, each edge of the roller and the pair of red hearts: two: "the first side and the first One of the two sides has a pitch pitch ranging from 0.5 to 1 cm. Du 4. The bracket structure of claim 1 , wherein the connection has a crossover portion and a plurality of rotating shafts, and one end of the bridging portion is disposed on one of the 14 201035667 j strut, the bridging portion The other end is disposed on the support rods, and each of the rotating shafts i is connected to the bridging portion, and the other ends are connected to the roller. 5. The bracket structure of claim 1, further comprising a spring 'the end of the spring is disposed on the top of the support rods, and the two ends are disposed on the base The spring includes one of a money spring and a liquid level. i 6. A bracket structure adapted to support a projection screen, comprising: a base; each of the support rods each having -_, - a (four) and a guide groove relative to the top end, the service end being disposed at the base In the seat, the cutting rods are combined again; a connecting member includes a bridging portion and two rollers, one end of the bridging portion is disposed on one of the supporting rods, and the other end of the bridging portion is disposed on The other of the support rods is adjacent to the end of the bridging portion, and the yokes are respectively located in the guide slots of the rods and are adapted to roll in the slots; — two links hinged to the top ends of the support bars; and a tie rod 'hinged to the two links. 7. The stent structure of claim 6, wherein each of the plurality of sides has a side edge and a second side edge, and the first side edge is disposed in parallel with the seventh side edge a rod, when the miscellaneous rod drives the branch rods, each of the rollers abuts against the first side or the first side or the side of the corresponding guide groove; when the rod is stationary, the connection Each of the rollers 15 201035667 wheel falls on the second side of the corresponding guide groove. 8. The bracket structure according to claim 7, wherein each of the rollers is rolled in the corresponding guide groove, and the edge of each of the rollers corresponds to the first side and the second The side has a 赃, and the closing distance ranges from 0.5 to 1 cm. 9. The bracket structure of claim 6, wherein the connector has a plurality of fibers each of the heat-ends connecting the Wei bridges, and the other end of each of the shafts is coupled to the roller. 10. The bracket structure according to claim 6 of the patent application, wherein the end of the spring is disposed on the support rod, and the other end of the spring is disposed on the base. The spring comprises a towel of the soil spring. -Liquid Link:: A total of: one = two two ^ 16