KR20100035218A - Carrier device for movable sound-reflection board without power-driven machine - Google Patents

Carrier device for movable sound-reflection board without power-driven machine Download PDF

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Publication number
KR20100035218A
KR20100035218A KR1020080094445A KR20080094445A KR20100035218A KR 20100035218 A KR20100035218 A KR 20100035218A KR 1020080094445 A KR1020080094445 A KR 1020080094445A KR 20080094445 A KR20080094445 A KR 20080094445A KR 20100035218 A KR20100035218 A KR 20100035218A
Authority
KR
South Korea
Prior art keywords
frame
main panel
weight
jack assembly
screw jack
Prior art date
Application number
KR1020080094445A
Other languages
Korean (ko)
Inventor
김명석
Original Assignee
(주)시공사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)시공사 filed Critical (주)시공사
Priority to KR1020080094445A priority Critical patent/KR20100035218A/en
Publication of KR20100035218A publication Critical patent/KR20100035218A/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/04Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
    • B62B3/06Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground
    • B62B3/0606Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground manually operated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/04Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
    • B62B3/06Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground
    • B62B3/0625Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground using rigid mechanical lifting mechanisms, e.g. levers, cams or gears
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/10Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by supports specially adapted to objects of definite shape
    • B62B3/108Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by supports specially adapted to objects of definite shape the objects being plates, doors, panels, or the like

Abstract

PURPOSE: A non-powered carrier device for a sound reflection board is provided to enable efficient and simple transportation by raising with only manual force a weight frame for the center of mass of a vertical sound reflection board. CONSTITUTION: A non-powered carrier device for a sound reflection board comprises a frame(31), a screw jack assembly(34), a lifting handle(35), and a handle(36). The frame is inserted from the bottom of a main panel to the space between the floor and a weight frame structure and includes wheels(33) and support legs(32). The screw jack assembly raises and lowers the weight frame structure on the floor. The lifting handle is to manually control the screw jack assembly.

Description

Carrier Device for Movable Sound-Reflection Board without Power-driven Machine}

The present invention relates generally to a device for carrying a vertical acoustic reflector for a concert stage for a concert or the like, and more particularly by allowing the weight frame portion for the center of gravity of the vertical acoustic reflector to be lifted from the floor with the operator's force alone. A new, non-powered acoustic reflector carrier with a simple and inexpensive structure which makes the task of carrying the acoustic reflector efficient and easy without the need for complicated means when using electrical or hydrodynamic power. .

In general, in an upscale concert hall, theater, stage, performance hall, etc., an acoustic reflector is installed in order to better transmit the music or sound being played to the seat 1 (see FIG. 1) where the audience is sitting. However, when the acoustic reflector is installed in a permanent form, there is a problem that the stage cannot be used for various other uses, and in recent years, there are many examples of using the portable acoustic reflector 2 and 4. In this case, a plurality of movable folding vertical acoustic reflectors 2 as shown in FIG. 2 are installed on the side walls facing the auditorium 1, and the ceiling acoustic reflectors 4 are suspended from the ceiling of the stage to be inclined at a predetermined angle. After the performance is finished, the acoustic reflectors 2 and 4 which have been installed can be dismantled and moved to a storage location, and the stage can be used for other purposes such as a play or a speech.

The movable foldable vertical acoustic reflector 2 has a main panel 22 having a height of about 5 to 10 m and a width of about 1 to 1.5 m in the center thereof, and a foldable connection to both sides of the main panel 22, respectively. On the weight frame 21 and the weight frame 21 which are installed at the rear of the pair of wing panels 23 and the main panel 22 to maintain balance when the vertical acoustic reflector 2 is standing vertically. Weight 24 and the like installed to maintain weight balance. A portion of the lower end of the main panel 22 forms the opening part 22a to be folded toward the weight frame 21 side. As shown in FIG. 5, the opening part 22a functions to minimize the storage space by allowing the weight frames 21 to be inserted when they overlap each other for storage.

3 shows the weight frame 21 portion in more detail. The front surface of the weight frame 21 is an opening portion 22a of the main panel, and a weight 24 of a predetermined weight is installed on the rear surface. The weight frame 21 is made of hollow metal pipes for rigidity and light weight. A base part 25 is attached to the lower end of the weight frame 21 to adjust the horizontal state of the overall acoustic reflector while the weight frame 21 is slightly off the floor. This base part 25 is not shown but is similarly provided in the wing panel 23, so that the acoustic reflector 2 is basically supported by the base part 25 and kept horizontally slightly away from the stage floor. do.

Conventionally, when the acoustic reflector 2 needs to be installed on a stage or moved for storage, it is common to use a conveying device using air or a lifting driving unit installed on an upper stage. However, these hydrodynamic or electrical power carriers have various problems such as complicated structure and expensive, and it is not easy to work by an operator who has never manipulated the carrier. Thus, there is still a need for a transport device that can be easily used by a worker when transporting the vertical acoustic reflection plate 2 and whose structure is simple and inexpensive.

The present invention has been devised to solve the above-mentioned problems of the conventional vertical acoustic reflector conveying apparatus, and, for example, in carrying a vertical acoustic reflector for a stage for a concert or the like, it requires a complicated means required when using electric or hydrodynamic power. It is an object of the present invention to provide a new non-powered vertical acoustic reflector conveying device which is mechanically simple and inexpensive, and which makes it possible to efficiently and easily carry the vertical acoustic reflector.

This object is achieved by a non-powered vertical acoustic reflector conveying device provided according to the invention.

The non-powered vertical acoustic reflection plate conveying apparatus according to the present invention includes one main panel for acoustic reflection of a predetermined height and a pair of wing panels foldably coupled to the left and right sides of the main panel, respectively. An apparatus for lifting and transporting a foldable vertical acoustic reflection plate having a weight frame structure for holding a center of gravity at the bottom of the rear surface thereof, the device being insertable into a space between the weight frame structure and the floor from the lower end of the main panel. A frame having a wheel and a support leg for movement in the lower portion; A screw jack assembly mounted on the frame to lift and lower the weight frame structure from a floor; A lifting handle for manually controlling the screwjack assembly; And a handle that can be gripped by a user to manually move the frame.

In a preferred embodiment, the screw jack assembly comprises three screw jacks arranged at vertices of a triangular shape and a gearbox for simultaneously providing power to the three screw jacks from the lifting handle. do.

According to the present invention, in carrying a vertical acoustic reflector for a stage, for example, a concert, etc., a mechanically simple and inexpensive structure and a vertical acoustic reflector without the complicated means required when using electric or hydrodynamic power are required. The operation of transporting the food can be made efficiently and easily.

Hereinafter, with reference to the accompanying drawings illustrating a non-powered vertical acoustic reflection plate conveying apparatus of the present invention with a specific example as follows.

4 is a perspective view showing the structure of the vertical acoustic reflection plate transport apparatus according to an embodiment of the present invention, Figure 5 is a schematic side view of the transport device shown in Figure 4, Figure 6 is a view of the transport device shown in Figure 4 Schematic top view.

As shown, the non-powered vertical acoustic reflector conveying device 3 according to the present invention is characterized in particular in a non-powered manner, ie by a vertical acoustic reflector 2 which constitutes a side wall reflector for the stage as shown in FIGS. 2 and 3. It is a device for conveying by manual operation. The vertical acoustic reflection plate 2 includes one main panel 22 for reflecting sound of a predetermined height and a pair of wing panels 23 foldably coupled to the left and right sides of the main panel 22, respectively. In addition, the lower end of the main panel 22 has a weight frame 21 structure for grasping the center of gravity. When transporting the acoustic reflector 2, the operator first folds the pair of wing panels 23 toward the weight frame 21, and the pair of wing panels 23 are folded using a separate fixing device or a rope. Keep it. Therefore, the size of the device for carrying the acoustic reflector 2 is sufficient if the size of the device to be able to stably lift the lower end of the weight frame 21 to move away from the floor.

The conveying device 3 of the present invention is for lifting and moving the lower end of the weight frame 21 structure of the acoustic reflector 2 by using a mechanical structure without requiring a separate power unit. It is easy to work with.

The conveying device 3 comprises a frame 31, a wheel 33 and a support leg 32, a screw jack assembly 34, a lifting handle 35 and a handle 36 as shown in FIG. 4. Equipped.

The frame 31 provides a basis for installing the other parts constituting the conveying device 3, the size and shape of which preferably corresponds to the size and shape corresponding to the weight frame 21 of the acoustic reflector 2, For example, it can be manufactured using a metal pipe of hollow square section. The frame 31 may be inserted into a space between the bottom of the weight frame 21 and the bottom frame of the main panel 22. The lower part of the frame 31 is provided with a wheel 33 and a support leg 32 for movement. The wheel 33 preferably has a free rotating wheel structure that can freely roll in four directions, as shown in more detail in FIG. The wheel 33 needs to be firmly manufactured to withstand the entire weight of the acoustic reflector 2 and the weight of the conveying device 3 during transportation, and a free rotating wheel structure that can freely roll in four directions. In this case, the wheels installed in four directions are also provided with the advantage of providing the required firmness. At the lower end of the frame 31, near the wheel 33, a support leg 32 is provided to support the wheel 33 so that it does not slip in a desired position without interfering with the movement of the frame 31. This support leg 32 may protrude downward from the frame 31 with a length shorter than the wheel 33.

The screw jack assembly 34 is installed on the frame 31 to lift and lower the weight frame 21 structure, that is, the acoustic reflector 2, for example, from the stage floor. In a preferred embodiment, as shown in FIGS. 4 to 6, the screw jack assembly 34 comprises three screw jacks 345, 346, 347 arranged at a vertex in the form of a triangle and one gear. It may be configured to include a box 341. The gear box 341 may be, for example, a miter gear box having three output shafts and one input shaft in four directions perpendicular to each other. The structure and function of the miter gearbox can include components such as spiral bevel gears, as is well known to those skilled in the art, thereby amplifying or reducing the force provided from the input shaft to three output shafts. The gearbox 341 according to the invention in particular performs the function of simultaneously providing the power provided from the lifting handle 35 to the three screw jacks 345, 346, 347.

The lifting handle 35 is a handle for manually controlling the screw jack assembly 34, which is manually operated by an operator. Lifting handle 35 is connected to the input shaft of the gearbox 341, when the operator manually rotates the lifting handle 35, the input shaft of the gearbox 341 may be configured to rotate. When the input shaft of the gearbox 341 is rotated as shown in FIG. 6, this rotational force is connected to the three output shafts of the gearbox 341 via the screw shafts 342, 343, 344. 346 and 347, respectively. The rotational force transmitted to the screw jacks 345, 346 and 347 causes the screw jacks 345, 346 and 347 to rise, and this lifting force is transmitted to a predetermined position of the weight frame 21 shown in FIG. This allows the acoustic reflector 2 to be slightly lifted off the floor.

In this lifted state, the operator can carry the acoustic reflector 2 through an operation of pulling or pushing the handle 36 which the user can grip to manually move the frame 31.

Since the conveying device 3 according to the present invention uses a mechanical structure as described above, the operator can easily lift the acoustic reflector 2 of considerable size and weight simply by simply operating the lifting handle 35. have. The lifted acoustic reflector 2 can be easily moved by the operator holding the handle 36. As such, the conveying apparatus 3 according to the present invention does not use power during the conveying operation of the acoustic reflecting plate 2, and thus does not require unnecessary power consumption, and provides an advantage of being able to produce a simple manufacturing cost with a simple structure.

In the above, the present invention has been described through specific embodiments, but various modifications are possible to those skilled in the art by referring to and combining various features described herein. Therefore, it should be pointed out that the scope of the present invention should not be limited to the described embodiments, but should be interpreted by the appended claims.

As described above, the non-powered conveying apparatus of the stage vertical acoustic reflector according to the present invention can be used for carrying the acoustic reflector installed on the side wall of the stage, that is, the vertical acoustic reflector for installation or storage.

1 is a schematic diagram showing the installation of the acoustic reflector in a general stage.

Figure 2 is a perspective view showing the structure of a conventional folding vertical acoustic reflection plate.

Figure 3 is a side view showing the weight frame side detailed structure of the conventional foldable vertical acoustic reflection plate shown in FIG.

Figure 4 is a perspective view showing the structure of the vertical acoustic reflection plate transport apparatus according to an embodiment of the present invention.

FIG. 5 is a schematic side view of the conveying device shown in FIG. 4. FIG.

6 is a schematic plan view of the conveying device shown in FIG. 4;

<Description of the symbols for the main parts of the drawings>

1: Auditorium 2: Vertical acoustic reflection board

21 weight frame 22a opening portion

24 weight 25 base parts

3: conveying device 31: frame

32: support leg 33: pre-rotating wheel

34: skewyu jack assembly 341: storage box

342, 343, 344: line shaft 345, 346, 347: screw jack

348: screw jack cover 35: lifting handle

36: handle

Claims (2)

And a main panel 22 for reflecting sound of a predetermined height and a pair of wing panels 23 foldably coupled to left and right sides of the main panel 22, respectively, and the main panel 22 In the device for lifting and carrying a foldable vertical acoustic reflection plate (2) having a weight frame (21) structure for holding the center of gravity at the bottom of the rear, A frame 31 which can be inserted into a space between the weight frame 21 structure and the floor from the lower end of the main panel 22 and has a wheel 33 and a support leg 32 for movement under the bottom frame; ; A screw jack assembly (34) installed on the frame (31) for lifting and lowering the weight frame (21) structure from the floor; A lifting handle (35) for manually controlling the screwjack assembly (34); A non-powered vertical acoustic reflection plate carrier, characterized in that it comprises a handle (36) that the user can grip to manually move the frame (31). 2. The screw jack assembly (34) according to claim 1, wherein the screw jack assembly (34) comprises three screw jacks (345, 346, 347) arranged at vertices of a triangular shape and the three screw jacks (345, 346, 347). A non-powered vertical acoustic reflection plate carrier, characterized in that it comprises a gear box (341) for simultaneously providing the power provided from the lifting handle (35).
KR1020080094445A 2008-09-26 2008-09-26 Carrier device for movable sound-reflection board without power-driven machine KR20100035218A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080094445A KR20100035218A (en) 2008-09-26 2008-09-26 Carrier device for movable sound-reflection board without power-driven machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080094445A KR20100035218A (en) 2008-09-26 2008-09-26 Carrier device for movable sound-reflection board without power-driven machine

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR2020110000288U Division KR20110004729U (en) 2011-01-11 2011-01-11 Carrier Device for Movable Sound-Reflection Board without Power-driven Machine

Publications (1)

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KR20100035218A true KR20100035218A (en) 2010-04-05

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102930854A (en) * 2012-11-09 2013-02-13 李复斌 Huqin reflex device
CN108545105A (en) * 2018-04-16 2018-09-18 安徽机电职业技术学院 A kind of handcart for transportation of low chassis
CN109018603A (en) * 2018-10-08 2018-12-18 浙江晨星木业有限公司 A kind of Recombinant Wood production wood composite pallet of steady type
CN109131481A (en) * 2016-10-28 2019-01-04 王永妍 A kind of fragile material transport vehicle with damping effect
CN109353666A (en) * 2018-11-23 2019-02-19 阜阳市伟叶家具有限公司 A kind of family property furniture tote box

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102930854A (en) * 2012-11-09 2013-02-13 李复斌 Huqin reflex device
CN109131481A (en) * 2016-10-28 2019-01-04 王永妍 A kind of fragile material transport vehicle with damping effect
CN109131480A (en) * 2016-10-28 2019-01-04 王永妍 A kind of fragile material transport vehicle with damping effect
CN108545105A (en) * 2018-04-16 2018-09-18 安徽机电职业技术学院 A kind of handcart for transportation of low chassis
CN109018603A (en) * 2018-10-08 2018-12-18 浙江晨星木业有限公司 A kind of Recombinant Wood production wood composite pallet of steady type
CN109353666A (en) * 2018-11-23 2019-02-19 阜阳市伟叶家具有限公司 A kind of family property furniture tote box
CN109353666B (en) * 2018-11-23 2019-09-27 阜阳市伟叶家具有限公司 A kind of family property furniture tote box

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