Extensionable batten for stage

Abstract

The present invention comprises: a transverse batten pipe; an expandable pipe installed to be expandable at the end of the batten pipe; an extension unit that presses the expandable pipe to extend it at the end of the batten pipe so that the expandable pipe protrudes from the batten pipe and the end of the batten pipe is extended through the expandable pipe; and a contraction unit that guides the expandable pipe into the interior of the batten pipe to contract it so that the expandable pipe protruding from the batten pipe by the extension unit is inserted into the batten pipe and the end of the batten pipe is contracted through the expandable pipe; wherein the length is varied through the expansion of the expandable pipe.

Description

Technology Field

[0001] The present invention relates to a batten installed on a stage, and more specifically to a stage extension batten with a variable length. Background Technology

[0002] Generally, the stage where the performance takes place is mounted on a batten that is installed to allow multiple devices necessary for the performance to move up and down in the lateral direction. This batten is connected to a wire rope of a hanger installed vertically on the ceiling of the stage, and moves up and down as the wire rope is wound onto or pulled out of a drum on the ceiling.

[0003] Korean Patent Registration No. 10-1073529 (Sewon SDS) relates to a stage device equipped with the aforementioned batten, as illustrated in FIG. 1. This prior art is characterized by forming a separate horizontal movement space (30) under the grid iron (3) in addition to the workspace (11) between the grid iron (3) and the ceiling frame (10), and providing a pulley unit (40) in the horizontal movement space (30) to enable horizontal movement of the wire rope (2), thereby configuring the wire rope (2) for driving the stage batten to move horizontally under the grid iron (3), and installing an auxiliary support beam (20) that supports the pulley unit (40) enabling horizontal movement of the wire rope (2) on the bottom surface of the horizontal movement space (30) at a position spaced apart from the grid iron (3) by the height of the horizontal movement space (30), and providing a cover plate receiving hole (42-1) without a grid iron in the part of the upper surface of the pulley unit (40) corresponding to the grid iron (3), and providing a separate cover plate (46) in the cover plate receiving hole (42-1) so that it can be opened and closed from the grid iron. It provides stage equipment.

[0004] In this conventional technology, as shown in FIG. 1, since the barton (1) is composed of multiple wire ropes (2), a worker walking on the grid iron (3) may trip and fall, causing a safety accident. However, by placing an auxiliary support beam that forms a horizontal movement space under the grid iron and installing a pulley between the auxiliary support beam and the grid iron so that the pulley is not installed on the upper surface of the grid iron, the workability on the upper surface of the grid iron can be improved, thereby preventing safety accidents.

[0005] However, the aforementioned conventional technology lacks a configuration for extending the length of the baton, so the baton cannot be extended as needed.

[0006] Meanwhile, Korean Patent Registration No. 10-2344537 (Hanasystec) is an invention capable of extending the aforementioned batten to a desired length, comprising: a pipe bar (100) in which a plurality of unit pipe bars (110) having unit lengths are connected and then arranged in parallel to form an upper pipe bar (130) and a lower pipe bar (150); and a joint bar (300) which is a cylindrical body with a stepped portion (310) formed in the center, inserted into the end of the unit pipe bar (110) to connect the unit pipe bar (110) and an adjacent unit pipe bar (110). The structure comprises a reinforcing member (500) that fixes the upper pipe bar (130) and the lower pipe bar (150) and secures a mutual spacing between them, and is composed of a pipe grip (510) into which the pipe bar is inserted through a cut portion (511) formed on a cylindrical body that completely cuts one side of the circumferential surface, and a pair of legs (530) that extend in a parallel symmetrical shape from the cut portion (511), thereby expanding the cut portion (511) with the pair of legs (530) to insert the upper pipe bar (130) and the lower pipe bar (150) into the pipe grip (510) respectively, and thereby connecting the ends of the legs (530) and the opposing ends of the legs (530) to each other; thereby allowing the unit pipe bar (110) to be formed into a straight pipe bar in a short time without welding at the stage installation site, and the upper A stage setup cost batten is provided, characterized by the pipe bar (130) and the lower pipe bar (150) being fixed in parallel.

[0007] In this other conventional technology, as shown in FIGS. 2 and 3, a batten pipe (100) is assembled by a plurality of unit pipe bars (110) connected by a joint bar (300) to form a single batten, so the length of the batten pipe (100) can be extended by connecting unit pipe bars (110) having a certain length with the joint bar (300).

[0008] However, this other conventional technology can connect unit pipe bars (110) with a joint bar (300), but cannot extend the end of the barton pipe (100) to a predetermined length.

[0009] To solve this, a technique is being utilized in which a sliding pipe (110a) is slidably inserted into the end of a unit pipe (110) constituting the batten, as shown in FIGS. 4 and 5, and the length of the batten is extended as the sliding pipe (110a) emerges from the end of the unit pipe (110). In this conventional technique, the length of the batten is varied by a worker operating a knob bolt (NB) to withdraw or insert the sliding pipe (110a) from the unit pipe (100). The worker can vary the length of the batten by operating the knob bolt (NB) at one end of the batten to adjust the length of one end of the batten, moving to the other end on the opposite side, and then operating the knob bolt (NB) at the other end to adjust the length of the other end of the batten.

[0010] However, with this conventional technology, when the battens are composed of dozens as shown in Fig. 1, the operator must operate the knob bolts (NB) by moving back and forth on both sides of all the battens, which takes an excessive amount of time and is very inconvenient to use. For example, when the battens are composed of 50, the operator must operate 100 knob bolts (NB) provided on both sides of the battens one by one, which not only takes an excessive amount of time but is also inconvenient to use. Prior art literature

[0011] Republic of Korea Patent Registration No. 10-1073529 (Sewon SDS) Republic of Korea Patent Registration No. 10-2344537 (Hanasystec) The problem to be solved

[0012] The objective of the present invention is to provide a stage extension batten capable of varying the length of the batten on one side.

[0013] In particular, the length of the batten can be varied by extending an elastic material embedded elastically at the end of the batten through rotational force.

[0014] Another objective is to provide a stage extension batten capable of extending the elastic material to an exposed state through elasticity, and additionally, contracting the elastic material by pulling it with a wire.

[0015] In addition, another objective is to provide a stage extension batten that can reduce frictional resistance generated during the expansion of the expansion material and, furthermore, allow the expansion material to be expanded remotely. means of solving the problem

[0016] An extension batten for a stage according to one embodiment of the present invention comprises: a batten pipe installed in a transverse direction and raised and lowered; an extension pipe integrally installed at the end of the batten pipe to enable telescopic movement and forming the end of the batten pipe, and extending or contracting the end of the batten pipe by telescopic movement to vary the length of the batten pipe through the extended end; an extension unit that presses the extension pipe to extend the end of the batten pipe so that the extension pipe protrudes from the batten pipe and the end of the batten pipe extends through the extension pipe; and a contraction unit that guides the extension pipe into the interior of the batten pipe to contract the extension pipe so that the extension pipe protruding from the batten pipe by the extension unit is inserted into the batten pipe and the end of the batten pipe contracts through the extension pipe.

[0017] The above-described contraction unit is characterized by contracting the extended pipe, which is protruding outwardly from the batten pipe and extended, by pulling it into the interior of the batten pipe through rotational force and guiding it into the interior of the batten pipe.

[0018] The above-described extension unit comprises: an elastic body that elastically supports the expansion pipe within the batten pipe and presses the expansion pipe along the longitudinal direction of the batten pipe; a one-end fixing sheet that fixes one end of the elastic body within the batten pipe; and a other-end fixing sheet that fixes the other end of the elastic body to the end of the expansion pipe.

[0019] The above-mentioned contraction unit comprises: a traction wire connected to the end of the expansion pipe to pull the expansion pipe inward along the longitudinal direction of the batten pipe; and a winder fixed to the batten pipe to enable forward or reverse rotation, winding or drawing out the traction wire by rotational force, and by sliding the expansion pipe connected to the traction wire along the longitudinal direction of the batten pipe through the traction wire wound by rotational force, thereby guiding the expansion pipe, which has been extended and protruded outwardly from the end of the batten pipe through the extension unit, intoward and contracting the expansion pipe.

[0020] The above winder is equipped with a bobbin and winds the traction wire onto the bobbin.

[0021] The present invention further includes a bearing that reduces friction of the expansion pipe.

[0022] The above winding machine includes: a knob on which the bobbin is provided on a rotating shaft; and a latch integrally provided on the knob to prevent the knob from rotating.

[0023] The above latch includes a latch wheel integrally provided on the rotation axis of the knob; and a click that engages with the latch wheel to control the rotation of the latch wheel.

[0024] The above click further includes a handle; and a spring that elastically pulls the click.

[0025] The above latch is composed of a conventional rotary cam latch in which the lock of the click is released when the latch wheel is fully rotated.

[0026] The above-described winder comprises: at least one rack to which a traction wire is connected and which moves the traction wire while reciprocating; a pinion that engages with the rack and rotates to reciprocate the rack; a bidirectional motor that rotates the pinion in both directions; and a controller that controls the operation of the bidirectional motor.

[0027] The above winder may be configured to include: a tubular motor that winds the traction wire onto an outer surface while rotating in the forward direction or pulls out the traction wire wound onto the outer surface while rotating in the reverse direction; and a controller that controls the operation of the tubular motor.

[0028] The controller comprises: a rotation signal application unit that applies a rotation signal for rotating the motor in the forward or reverse direction via wired or wireless means; a communication unit that receives the rotation signal from the rotation signal application unit or transmits the driving state of the tubular motor; a driving unit that applies a driving signal to the tubular motor according to the rotation signal received by the communication unit; and a control unit that controls the driving of the driving unit, the counter and comparison unit, and the communication unit.

[0029] The above-mentioned rotation signal application unit is composed of a conventional remote control, a PC, or a terminal such as a smartphone, and such a terminal is operated by an app.

[0030] The above controller further includes a counter for counting the number of rotations of the tubular motor; and a comparison unit for comparing the number of rotations of the counter with a preset number of rotations.

[0031] The above driving unit is characterized by applying a driving signal based on the rotation signal of the communication unit and applying a stop signal based on the comparison signal of the comparison unit. Effects of the invention

[0032] In the present invention, the entire length of a straight line is extended or contracted by the extendable pipe that extends and retracts at the end of the batten pipe as needed.

[0033] In particular, the expansion pipe can be stably expanded by pulling it inward toward the batten pipe through the rotational force of the above-mentioned contraction unit.

[0034] In addition, since the expansion pipe is expanded through the elastic body provided in the expansion unit, the expansion pipe can be easily expanded by elastic force.

[0035] In addition, since the winder of the above-mentioned contraction unit winds the traction wire, the expansion pipe can be moved reliably, and furthermore, since the bearing reduces the frictional resistance of the expansion pipe, the expansion pipe can be smoothly extended. Moreover, since the knob of the winder is provided in the middle of the batten pipes to wind or pull out the traction wire embedded in each of the batten pipes, the operator can extend the expansion pipes provided at the ends of the batten pipes all at once from the middle of the batten pipes.

[0036] In addition, if the above-mentioned coil is equipped with the above-mentioned latch, the above-mentioned knob of the above-mentioned coil can be prevented from rotating. Furthermore, if the above-mentioned click is equipped with the above-mentioned spring and the above-mentioned handle, the engaged state of the above-mentioned click can be easily maintained or the engaged state can be easily released by the above-mentioned handle. Moreover, if the above-mentioned latch wheel of the above-mentioned latch is configured as a cam-type latch wheel, the latch wheel can be rotated to a release position to easily release the locking state caused by the engagement of the above-mentioned click and unlock it.

[0037] In addition, since the above winding machine is equipped with the above motor and the above controller, the length of the batten can be automatically adjusted by extending the above-described pipe through the above controller.

[0038] In addition, if the motor is configured as a tubular motor, components such as the pinion and the rack can be omitted, and if it is configured as a bidirectional motor together with the pinion and the rack, the expansion pipe can be stably expanded by a mechanical mechanism.

[0039] Furthermore, since the controller controls the operation of the motor by means of a rotation signal applied to the communication unit via wired or wireless means, the expansion and contraction of the expansion pipe can be controlled remotely, and in addition, the driving state of the motor can be guided through the communication unit, and furthermore, since the operation of the motor can be controlled accurately or precisely as the driving unit applies a stop signal by the counter and the comparison unit, the traction wire can be prevented from being excessively wound. Brief explanation of the drawing

[0040] FIG. 1 is a perspective view of a stage device equipped with an extension batten according to the prior art. FIG. 2 is a perspective view illustrating the connection process of an extension batten according to another prior art. Figure 3 is a perspective view of a barton connected by the connection process of Figure 2. Fig. 4 is a front view illustrating a standard barton. FIG. 5 is a front view showing the end-side length of the batten shown in FIG. 4 extended. FIG. 6 is a perspective view, a plan view, and a front view of a stage extension batten according to a first embodiment of the present invention. Figure 7 is an enlarged view of the plan view shown in Figure 6. Fig. 8 is an enlarged view of the front view shown in Fig. 6. FIG. 9 is a perspective view, a plan view, and a front view of a stage extension batten according to a second embodiment of the present invention. Figure 10 is an enlarged view of the plan view shown in Figure 9. Fig. 11 is an enlarged view of the front view shown in Fig. 9. FIG. 12 is an enlarged view showing the front view of a stage extension batten according to the third embodiment of the present invention. FIG. 13 is an enlarged view showing the front view of a stage extension batten according to the fourth embodiment of the present invention. Fig. 14 is an enlarged view of the portion shown in Fig. 13. FIG. 15 is a block diagram illustrating the configuration of a controller that controls the driving of the motor shown in FIG. 14. FIG. 16 is a block diagram illustrating another embodiment of the controller shown in FIG. 14. Specific details for implementing the invention

[0041] Hereinafter, the present invention will be examined in detail with reference to the attached drawings.

[0042] An extension batten for a stage according to an embodiment of the present invention comprises a plurality of batten pipes (51) and an extension pipe (53), as well as an extension unit and a contraction unit described later, as illustrated in FIGS. 6 to 8. The batten pipes (51) are composed of a plurality as illustrated and are formed as long as a straight line by being integrally connected by a conventional joint bar described in the prior art. These batten pipes (51) are installed so as to be able to move up and down in the lateral direction on the upper part of the stage by means of a wire rope of a hanger described in the prior art.

[0043] As illustrated in enlarged drawings in FIGS. 7 and 8, the above-mentioned extension pipe (53) is integrally installed to be extendable at the end of the batten pipe (51) to form the end of the batten pipe (51). As illustrated, the extension pipe (53) extends at the end of the batten pipe (51), thereby extending or contracting the end of the batten pipe. The extension pipe (53) substantially extends the end of the batten pipe (51) through extension. Thus, the length of the batten pipe (51) is varied by the extension of the end.

[0044] The extension unit applies pressure to the extension pipe (53) to extend the end of the batten pipe (51) so that the extension pipe (53) protrudes from the batten pipe (51) and the end of the batten pipe is extended through the extension pipe (53). The extension unit may be configured to include, for example, an elastic body (57), a one-end fixing sheet (57a), and a other-end fixing sheet (53a), as illustrated in FIGS. 7 and 8. As illustrated, the elastic body (57) is installed inside the batten pipe (51) and elastically supports the extension pipe (53) inside the batten pipe (51). Accordingly, the elastic body (57) applies pressure to the extension pipe (53) through elastic force. At this time, as illustrated, the elastic body (57) supports the extension pipe (53) elastically by having one end supported by the one-end fixing sheet (57a). Accordingly, the expandable pipe (53) constituting the end of the batten pipe (51) protrudes to the end of the batten pipe (51) by the pressure of the elastic body (57) as illustrated, thereby substantially extending the length of the batten pipe (51). That is, the batten according to the embodiment of the present invention, which is composed of the batten pipe (51) and the expandable pipe (53), is extended in length by the elongation of the expandable pipe (53).

[0045] As illustrated in the enlarged drawings in FIGS. 7 and 8, the above-mentioned end fixing sheet (57a) is a plate installed inside the batten pipe (51) in a state perpendicular to the longitudinal direction of the batten pipe (51). When a part of the batten pipe (51) is cut, the above-mentioned end fixing sheet (57a) can be inserted through this cut and then fixed to the batten pipe (51) by welding. Thus, the above-mentioned end fixing sheet (57a) is installed perpendicular to the batten pipe (51) to support one end of the elastic body (57). The above-mentioned end fixing sheet (57a) is provided with a wire hole in the center through which the traction wire (W), described later, passes.

[0046] As illustrated in the enlarged drawings in FIGS. 7 and 8, the other end fixing sheet (53a) fixes the other end of the elastic body (57) to the end of the expandable pipe (53). As illustrated, the other end fixing sheet (53a) is installed orthogonally to the end of the expandable pipe (53). As illustrated, the other end fixing sheet (53a) may be integrally equipped with a conventional wire fixing bolt so that the end of the aforementioned traction wire (W) can be fixed through the wire fixing bolt, and may be fixed orthogonally to the inside of the expandable pipe (53) in the same manner as the aforementioned one end fixing sheet (57a).

[0047] The above-described contraction unit guides the expansion pipe (53), which protrudes from the batten pipe (51) by the above-described extension unit, into the batten pipe (51) so that the end of the batten pipe (51) is contracted through the expansion pipe (53), thereby substantially contracting the length of the batten pipe (51). That is, the contraction unit contracts the expansion pipe (53) constituting the end of the batten pipe (51) to restore the length of the batten pipe (51), which was extended by extension, to its original length. The above-mentioned contraction unit pulls the extendable pipe (53), which has been extended and protruded outwardly from the batten pipe (51), into the interior of the batten pipe (51) through rotational force, thereby guiding the extendable pipe (53), which had been protruding outwardly from the batten pipe (51), into the interior of the batten pipe (51). That is, the contraction unit inserts the extended extendable pipe (53) into the batten pipe (51) through rotational force, thereby contracting the length of the batten pipe (51).

[0048] The above-described contraction unit may be composed of the aforementioned traction wire (W) and the winder described later, for example, as illustrated in the enlarged drawings of FIGS. 7 and 8. As illustrated, the traction wire (W) is integrally connected to the end of the expansion pipe (53) through the aforementioned conventional wire fixing bolt. As illustrated, the traction wire (W) pulls the expansion pipe (53) along the longitudinal direction of the batten pipe (51) and guides it into the interior of the batten pipe (51).

[0049] As illustrated in enlarged drawings in FIGS. 7 and 8, the above-described winder is fixed to the batten pipe (51) so as to be capable of forward or reverse rotation, and winds or pulls out the traction wire (W) by rotational force, and slides the extension pipe (53) connected to the traction wire (W) along the longitudinal direction of the batten pipe (51) through the traction wire (W) wound by rotational force. Accordingly, the winder guides the extension pipe (53), which is extended and protrudes outward from the end of the batten pipe (51) by the elastic body (57) of the extension unit, into the inside of the batten pipe (51) to contract it. That is, the winder contracts the end of the extended batten pipe (51) again to reduce the length of the batten back to its original length.

[0050] As illustrated in enlarged drawings in FIGS. 7 and 8, the above winding machine may be composed of a bobbin (63) embedded in the batten pipe (51) and a knob (61) to which a central axis is connected to the bobbin (63). The winding machine winds the traction wire (W) onto the bobbin (63) through the rotational force of the knob (61), which is rotated in the forward direction by an operator, and pulls the traction wire (W) out of the bobbin (63) as the traction wire (W) is pulled together with the elastic pipe (53) by the elastic force of the elastic body (57). At this time, the knob (61) rotates in the reverse direction as the bobbin (63) rotates due to the pulling out of the traction wire (W) by the elastic force of the elastic body (57).

[0051] As illustrated in the enlarged drawings in FIGS. 7 and 8, the above-described winder is integrally provided with a latch (70) on the knob (61) or the bobbin (63). The latch (70) prevents the knob (61), which is rotated in the forward or reverse direction, from rotating freely. As illustrated, the latch (70) includes a latch wheel (71) integrally provided on the rotation axis of the knob (61) and a conventional click (73) that engages with the latch wheel (71) to control the rotation of the latch wheel (71). As illustrated, the latch (70) may be provided with a protruding handle (73a) on the click (73) and a spring (75) that pulls the click (73) tensilely. As illustrated, the spring (75) always pulls the click (73) of the above latch (70). Therefore, when the knob (61) is rotated in the forward direction, the end of the click (73) engages with the teeth of the latch wheel (71), preventing the latch wheel (71) from rotating in the reverse direction. When the handle (73a) is operated, the engagement state of the click (73) is released, thereby allowing the latch wheel (71) to rotate in the reverse direction. Accordingly, the operator rotates the knob (61) in the forward direction to wind the traction wire (W) onto the bobbin (63), and when the traction wire (W) needs to be withdrawn by rotating the knob (61) in the reverse direction, the operator operates the handle (73a) to rotate the knob (61) in the reverse direction.

[0052] Here, the aforementioned latch (70) is a conventional device and can be easily implemented by a person skilled in the art. In particular, a latch composed of a conventional cam-type latch wheel may be applied, in which the lock of the click (73) is released when the latch wheel (71) is fully rotated, allowing the latch wheel (71) to rotate in reverse. As illustrated in enlarged drawings in FIGS. 9 and 10, the latch (70) may be configured such that the click (73) is provided on both sides of the latch wheel (71) and engages with the teeth on both sides of the latch wheel. Since this latch (70) is a conventional device that has been used for a long time in various fields and is widely used, a detailed description thereof is omitted.

[0053] Meanwhile, when the above-mentioned expansion pipe (53) is expanded, friction is reduced by a bearing (55) embedded in the batten pipe (51), as illustrated in enlarged drawings in FIGS. 7 to 8 and FIGS. 10 to 11. The bearing (55) may be composed of, for example, a conventional engineering plastic with excellent wear resistance and lubricity, and as illustrated in enlarged drawings, it is preferable to be composed of a tubular body or an annular bushing having a flange at the end and embedded in the end of the batten pipe (51). As illustrated in enlarged drawings, this bearing (55) prevents direct friction between the outer surface of the expansion pipe (53) and the inner surface of the batten pipe (51), and provides lubricity to the outer surface of the expansion pipe (53) that expands due to material properties. Therefore, the expansion pipe (53) expands while sliding smoothly inside the batten pipe (51) by means of the bearing (55).

[0054] The stage extension batten according to the embodiment of the present invention configured as described above is composed of batten pipes (51) connected in a straight line by the joint bar described in the prior art, and is installed laterally so as to be raised and lowered on the upper part of the stage by the wire rope of the hanger described in the prior art. The batten according to the embodiment of the present invention, which is configured with a plurality of batten pipes (51) in this way, has its length extended as the expansion pipe (53) protrudes outward from the batten pipe (51) by the elastic force of the elastic body (57) embedded in the batten pipe (51), as illustrated in enlarged drawings in FIGS. 8 and 10.

[0055] As illustrated in enlarged drawings in FIGS. 7 to 8 and FIGS. 10 to 11, when a worker moves to the middle of the batten pipes (51) forming a straight line and rotates the knob (61) in the forward direction, the traction wire (W) is wound onto the bobbin (63), which rotates together with the knob (61) by the rotational force of the knob (61). That is, the traction wire (W) is wound onto the bobbin (63) by the rotational force of the knob (61). At this time, as illustrated in FIGS. 7 and 10, the traction wire (W) compresses the elastic body (57) while pulling the extension pipe (53) into the inside of the batten pipe (51). Accordingly, the extension pipe (53) is inserted into the interior of the batten pipe (51) as illustrated. Therefore, the total length of the straight line of the batten according to the embodiment of the present invention is reduced as illustrated.

[0056] When the operator moves to the middle of the batten pipes (51) forming a straight line as needed and operates the knob (61) to rotate in reverse, the elastic body (57) is stretched by elastic force and restored to its original shape as shown in FIGS. 8 and 11, thereby pressing the fixing seat (53a) at the other end of the extension pipe (53). At this time, the traction wire (W) is unwound and pulled out from the bobbin (63) as shown, as the bobbin (63) is rotated in reverse by the knob (61). Accordingly, the extension pipe (53) is extended outward from the batten pipe (51) while protruding from the end of the batten pipe (51) as shown. Therefore, the batten according to the embodiment of the present invention is extended to the entire length of the straight line as shown by the extension of the extension pipe (53).

[0057] Here, as illustrated in enlarged drawings in FIGS. 8 and 11, the knob (61) described above is rotated in reverse along with the bobbin (63) by the traction wire (W) pulled by the elastic force of the elastic body (57) as the handle (73a) of the click (73) is pulled to release the engagement state of the click (73). Alternatively, if the knob (61) is configured with the conventional cam-type latch wheel (71) described above, the latch wheel (71) is operated by an operator to rotate the latch wheel (71) to the release position, and as the latch wheel (71) is released from the click (73) by the release position, it is rotated in reverse along with the bobbin (63) by the traction wire (W) pulled by the elastic force of the elastic body (57). Thus, the knob (61) is rotated in reverse so that the retractable pipe (53) is extended.

[0058] In conclusion, the batten according to the embodiment of the present invention is shortened in length as the rotational movement of the knob (61) is converted into a linear movement that pulls the traction wire (W) by the bobbin (63) and contracts the expansion pipe (53), and is extended in length as the expansion pipe (53) protrudes outward from the batten pipe (51) by the elastic force of the elastic body (57).

[0059] The stage extension batten according to the embodiment of the present invention as described above has its entire straight length extended or contracted by the extension pipe (53) which extends and retracts from the end of the batten pipe (51) as needed.

[0060] In particular, the expansion pipe (53) is pulled inward toward the batten pipe (51) and expanded through the rotational force of the above-mentioned contraction unit, thereby allowing the expansion pipe (53) to be expanded stably.

[0061] And, since the elastic body (57) provided in the extension unit extends the expansion pipe (53), the expansion pipe (53) can be easily extended by elastic force.

[0062] Additionally, since the winder of the above-mentioned contraction unit winds the traction wire (W), the expansion pipe (53) can be moved reliably, and in addition, since the bearing (55) reduces the frictional resistance of the expansion pipe (53), the expansion pipe (53) can be smoothly expanded. Furthermore, since the knob (61) of the winder is provided in the middle of the batten pipes (51) to wind or pull out the traction wire (W) embedded in each of the batten pipes (51), the operator can expand the expansion pipes (53) provided at the ends of the batten pipes (51) all at once from the middle of the batten pipes (51).

[0063] In addition, if the latch (70) is provided on the winder, the knob (61) of the winder can be prevented from rotating. Furthermore, if the spring (75) and the handle (73a) are provided on the click (73), the engaged state of the click (73) can be easily maintained or the engaged state can be easily released by the handle (73a). Moreover, if the latch wheel (71) of the latch (70) is configured as a cam-type latch wheel, the latch wheel (71) can be rotated to a release position to easily release the locking state caused by the engagement of the click (73) and unlock it.

[0064] Meanwhile, the winder of the above shrinking unit may be composed of a motor (80) and a controller (WP) as shown in FIGS. 12 to 16 so that remote control and automatic operation are possible. As shown, the motor (80) may be composed of a cylindrical tubular motor that is embedded in the batten pipe (51) and rotates. This motor (80) may be composed of a tubular motor that is widely used in the industry or the automatic blind industry and is also called a Somfy roller, and as shown, the outer surface rotates forward or reverse due to the driving characteristics, thereby winding the traction wire (W) onto the outer surface or pulling it out from the outer surface.

[0065] The above controller (WP) may be configured to include a rotation signal application unit (81), a communication unit (82), a driving unit (83), and a control unit (84), as illustrated in FIG. 15. The rotation signal application unit (81) applies a rotation signal via wired or wireless connection to rotate the motor (80) in the forward or reverse direction. The rotation signal application unit (81) may be configured, for example, as a conventional remote control configured to enable rotation signal application, or as a terminal such as a PC or smartphone equipped with an app or program capable of applying a rotation signal. The communication unit (82) receives the rotation signal from the rotation signal application unit (81) or transmits the driving status of the motor (80). The driving unit (83) applies a driving signal to the motor (80) according to the rotation signal received by the communication unit (82). That is, the driving unit (83) applies a forward rotation driving signal or a reverse rotation driving signal. The control unit (84) controls the operation of the driving unit (83) and the communication unit (82).

[0066] As shown in FIG. 16, the above controller (WP) may additionally be provided with a counter (85) that counts the number of rotations of the motor (80) and a comparison unit (86) that compares the number of rotations of the counter (85) with a preset number of rotations. In this case, the driving unit (83) applies a driving signal based on the rotation signal of the communication unit (82) and applies a stop signal based on the comparison signal of the comparison unit (86), as described below.

[0067] Here, the aforementioned counter (85) may be configured as a conventional encoder that detects the rotational speed of the motor (80) by being built into (not shown) the motor (80), for example, which is composed of a tubular motor, or by being integrally provided with the motor (80) as shown in FIG. 13. Since such an encoder is a conventional device that has been used in the industry for a long time and is a technology that can be easily understood by those skilled in the art, a detailed description thereof is omitted.

[0068] The winder configured as described above receives a forward rotation signal or a reverse rotation signal from the rotation signal application unit (81) constituting the controller (WP), as shown in FIGS. 12 and FIGS. 15 to 16. That is, a remote control, a smartphone, or a PC applies the forward rotation signal or the reverse rotation signal. At this time, the communication unit (82) receives the forward rotation signal or the reverse rotation signal and transmits it to the driving unit (83). When the forward rotation signal is input, the driving unit (83) applies a forward rotation driving signal to cause the expandable pipe (53) to contract, thereby rotating the motor (80) in the forward direction, and winds the traction wire (W) onto the outer surface of the motor (80) that is rotating in the forward direction. In contrast, when a reverse rotation signal is input to the drive unit (83), the drive unit (83) applies a reverse rotation drive signal to reverse the motor (80) so that the expansion pipe (53) is extended, and the drive unit (83) unwinds and pulls out the traction wire (W) from the outer surface of the motor (80) through the reverse-rotating motor (80). Accordingly, when the drive unit (83) rotates forward, it winds the traction wire (W) onto the outer surface of the motor (80) to pull and contract the expansion pipe (53) into the inner side of the batten pipe (51), and when the drive unit (83) rotates in reverse, it pulls out the traction wire (W) from the motor (80) to extend the expansion pipe (53), thereby allowing the expansion pipe (53) to protrude from the batten pipe (51) by the elastic force of the elastic body (57).

[0069] Meanwhile, when the controller (WP) is equipped with the counter (85) and the comparison unit (86) as shown in FIG. 16, the rotational speed of the motor (80) is detected through the counter (85). The counter (85) applies the detected rotational speed to the comparison unit (86). The comparison unit (86) compares the rotational speed that is pre-set for the forward or reverse rotation of the motor (80), that is, the rotational speed of the motor (80) for winding or pulling out the traction wire (W) so that the extension pipe (53) is fully extended, with the real-time detected rotational speed applied from the counter (85). For example, if the rotational speed that is pre-set for the forward or reverse rotation of the motor (80) is set to 20 times and the detected rotational speed applied from the counter (85) corresponds to the set 20 times, the comparison unit (86) applies a comparison signal corresponding to the rotational speed match to the drive unit (83). Accordingly, the driving unit (83) applies a stop signal to the motor (80) to stop the rotation of the motor (80), and transmits to the remote control, the manager's smartphone, or PC via the communication unit (82) that the forward or reverse rotation of the motor (80) has been completed. That is, the driving unit (83) transmits the driving status of the motor (80) to the manager's terminal. Thus, the operator can confirm that the contraction or extension of the expansion pipe (53) has been completed.

[0070] On the other hand, as illustrated in FIGS. 13 and 14, the winder of the above-described shrinking unit may be configured such that the aforementioned motor (80) is equipped with a pinion (80a) and is configured as a conventional bidirectional motor that rotates the pinion (80a) in both directions, and a plurality of racks (80b) are engaged with the pinion (80a). As illustrated, the motor (80) is configured as a geared motor, and the aforementioned counter (85) is integrally provided so as to operate with a driving signal of the driving unit (83) based on a comparison signal of the comparison unit (86) according to the rotational speed of the counter (85). Furthermore, as illustrated, the racks (80b) are engaged with each other on both sides of the pinion (80a) so that the racks (80b) can move in opposite states. At this time, the racks (80b) are each connected to the traction wire (W) embedded on each side of the batten pipes (51) as illustrated.

[0071] As shown in FIGS. 13 to 16, the motor (80) is rotated in the forward or reverse direction by the driving signal of the driving unit (83) by the aforementioned rotation signal application unit (81). At this time, the pinion (80a) rotates and moves the racks (80b) in opposite directions as shown in the figure.

[0072] For example, when the motor (80) rotates in the forward direction, it moves the rack (80b) to pull the traction wire (W) connected to the rack (80b), thereby guiding the expandable pipe (53) into the inside of the batten pipe (51) and contracting it. At this time, the counter (85) applies the detected number of rotations of the motor (80) to the comparison unit (86). Then, when the comparison unit (86) corresponds to 20 rotations, which is the number of rotations at which the contraction of the expandable pipe (53) is completed, it applies a comparison signal corresponding to the number of rotations to the drive unit (83). Accordingly, the drive unit (83) applies a stop signal to the motor (80) to stop the operation of the motor (80). Thus, the contraction of the expandable pipe (53) is completed as the rack (80b) moves by a set length.

[0073] In contrast, the motor (80) is rotated in reverse by the reverse rotation signal of the rotation signal application unit (81) so that the extension pipe (53) is extended, thereby moving the racks (80b) in the opposite direction to the forward rotation. At this time, the counter (85) and the comparison unit (86) detect the number of rotations of the motor (80) and apply a comparison signal to the driving unit (83) so that the motor (80) is stopped by the stop signal of the driving unit (83), thereby stopping the driving of the motor (80) through the driving unit (83). Accordingly, the extension pipe (53) is extended and protrudes outward from the barton pipe (51) as the elastic body (57) is restored to its original shape due to the reverse movement of the racks (80b) and the traction wire (W).

[0074] Here, the aforementioned drive unit (83) transmits to a remote control, a manager's smartphone, or a PC via the communication unit (82) that the forward or reverse rotation of the motor (80) is completed and the extension or contraction of the expandable pipe (53) is completed. Accordingly, the manager can remotely extend the expandable pipe (53) and check the extension status.

[0075] In the above embodiment, since the motor (80) and the controller (WP) are provided in the winder, the length of the batten can be automatically adjusted by extending the extendable pipe (53) through the controller (WP).

[0076] In addition, if the motor (80) is configured as a tubular motor, components such as the pinion (80a) and the rack (80b) can be omitted, and if it is configured as a bidirectional motor with the pinion (80a) and the rack (80b), the expandable pipe (53) can be reliably expanded by a mechanical mechanism.

[0077] Furthermore, since the controller (WP) controls the operation of the motor (80) by means of a rotation signal applied to the communication unit (82) via wired or wireless means, the extension of the extension pipe (53) can be controlled remotely, and in addition, the driving state of the motor (80) can be guided through the communication unit (82), and furthermore, the operation of the motor (80) can be controlled accurately or precisely as the driving unit (83) applies a stop signal by the counter (85) and the comparison unit (86), so that the traction wire (W) can be prevented from being excessively wound.

[0078] Those skilled in the art to which the present invention pertains will understand that the present invention may be implemented in other specific forms without altering its technical concept or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive, and the scope of the present invention is defined by the claims set forth below rather than by the detailed description, and all modifications or variations derived from the meaning and scope of the claims and equivalents thereof should be interpreted as being included within the scope of the present invention. Explanation of the symbols

[0079] 51: Barton pipe 53: Expansion pipe 53a: Other end fixing seat 55: Bearing 57: Elastic body 57a: One-sided fixing sheet 61: Knob 63: Bobbin 70: Latch 71: Latch wheel 73: Click 73a: Handle 75; Spring 80: Motor 80a: Pinion 80b: Rack 81: Rotation signal application unit 82: Communication unit 83: Driving unit 84: Control unit 85: Counter 86: Comparator W: Towing wire WP: Controller

Claims

Claim 1 A batten pipe (51) installed in a transverse direction and raised; an extendable pipe (53) integrally installed at the end of the batten pipe (51) to enable telescopic movement and forming the end of the batten pipe (51), and extending or contracting the end of the batten pipe (51) by telescopic movement to vary the length of the batten pipe (51) through the extended end; and an extension unit that applies pressure to the extendable pipe (53) to extend the end of the batten pipe (51) so that the extendable pipe (53) protrudes from the batten pipe (51) and the end of the batten pipe (51) is extended through the extendable pipe (53). and a contraction unit that guides the expansion pipe (53) into the interior of the batten pipe (51) and contracts it so that the expansion pipe (53), which protrudes from the batten pipe (51) by the expansion unit, is inserted into the batten pipe (51) and the end of the batten pipe (51) is contracted through the expansion pipe (53); wherein the contraction unit contracts the expansion pipe (53) that has been extended and protruded to the outside of the batten pipe (51) by pulling it into the interior of the batten pipe (51) through rotational force and guiding it into the interior of the batten pipe (51); wherein the expansion unit comprises an elastic body (57) that elastically supports the expansion pipe (53) inside the batten pipe (51) and presses the expansion pipe (53) along the longitudinal direction of the batten pipe (51); and one end of the elastic body (57) It includes a one-end fixing sheet (57a) that fixes the inside of the batten pipe (51); and a other-end fixing sheet (53a) that fixes the other end of the elastic body (57) to the end of the expandable pipe (53); and the contraction unit includes a traction wire (W) connected to the end of the expandable pipe (53) to pull the expandable pipe (53) inwardly along the longitudinal direction of the batten pipe (51) of the batten pipe (51).A winder is fixed to the batten pipe (51) so as to be capable of forward or reverse rotation, and winds or pulls out the traction wire (W) by rotational force, and by sliding the extension pipe (53) connected to the traction wire (W) along the longitudinal direction of the batten pipe (51) through the traction wire (W) wound by rotational force, thereby guiding the extension pipe (53), which is extended and protrudes outward from the end of the batten pipe (51) through the extension unit, into the inside of the batten pipe (51) to contract it; wherein the winder comprises: a bobbin (63) on which the traction wire (W) is wound; and a knob (61) connected to the bobbin (63) to rotate the bobbin (63) to wind the traction wire (W) onto the bobbin (63). A stage extension batten comprising: a latch (70) that prevents the knob (61) from rotating; wherein the latch (70) comprises a latch wheel (71) integrally provided on the rotation axis of the knob (61) and rotating together with the knob (61); and a click (73) that engages with the latch wheel (71) to control the rotation of the latch wheel (71); and further comprising a bearing (55) that reduces friction of the extension pipe (53); wherein the bearing (55) is characterized by being composed of a tubular body or bush made of engineering plastic material embedded in the inner circumference of the batten pipe (51) to provide lubrication while preventing the extension pipe (53), which is guided into the inside of the batten pipe (51), from rubbing against the batten pipe (51). Claim 2 delete Claim 3 delete

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