KR100868319B1 - Ceiling embeding type projection lift apparatus - Google Patents

Abstract

A ceiling built-in type project lift apparatus can control a project to accurately scan a screen installed in front of it. On the bottom of the inside of a project apparatus case(2), the back end of a project built-in frame(10) is installed with a shaft(4). On an upper tilt plate(11) of the project built-in frame, a project tilting device(50) adjusting the angle of a project apparatus is mounted. On the top of the inside of the project system case, a tubular motor(30) is installed to be inclined with a pair of eccentric bearing bracket(32). On the tip end of a shaft(33) of the tubular motor, a winding drum in which a winding groove(34) is formed in screw type is mounted. In the winding drum, the wire is wound with one end fixed. On the center of the leading end of the upper tilt plate of the project built-in frame, a sliding device which slides back and forth along a guide unit as the wire is wound or unwound in the winding drum is mounted. The bottom of the wire wound in the winding drum is connected to the sliding device. The wire is wound with the forward reverse operation of the tubular motor in the wire winding drum or the wire becomes milder. The project built-in frame with the projecting apparatus is extracted or stored through the bottom of the project apparatus case.

Description

Ceiling Mounted Project Lift Device {CEILING EMBEDING TYPE PROJECTION LIFT APPARATUS}

The present invention relates to a ceiling-mounted project lift device that is installed in the interior of the ceiling and the project mounting frame to which the project is mounted together to expose the project to the lower side of the ceiling or to accommodate the interior of the ceiling.

To explain this in more detail, the bottom of the projecting device case is formed in the shape of a rectangular parallelepiped so as to mount the upper cover formed separately on the upper side, and the inside of the projecting device case is projected by the forward and reverse operation of the tubular motor In that it can be stored or withdrawn inside the project device case through,

In the lower part of the inside of the project device case, a mandrel is installed with the rear edge of the project mounting frame as an axis, but inside the project mounting frame, the project is mounted as an angle adjustable project device so that the installation angle of the project can be arbitrarily adjusted. The tuber motor is installed at an upper side of the inside of the tube at an angle, and the wire winding drum is attached to the shaft of the tuber motor to wind the wire, and the lower end of the wire is connected to the sliding device installed on the upper plate of the project mounting frame. By forward and reverse operation of the wire to allow the wire to be wound or unwound on the wire wound drum, exposing or storing the project to the underside of the project device case together with the project mounting frame; To provide a ceiling-mounted project lift device characterized in that.

In general, projects such as various video devices (projectors), cameras (CCD cameras) and lighting devices are installed in conference rooms (projections) or exhibition rooms to project materials, illuminate indoors, or monitor indoors.

Various conventional projects used as described above have been largely heavy weights, so when the ceiling or wall is fixedly installed, there is a problem that the ceiling or the wall is easily broken.

However, in recent years, due to the development of the industry, the weight of various projects has become significantly lighter, so that they can be installed on the ceiling.

In this way, if the project is buried in the ceiling and withdrawn when needed, the project is usually buried inside the ceiling and is not exposed to the outside, so there is no risk of theft, and the indoor atmosphere is kept clean and simple. I can do it.

As mentioned above, it is possible to purchase and install the project inside the ceiling, and the utility model registration No. 20-129753 and utility model registration No. 20-219047 and utility model registration No. 20-386847 and utility model registration in Korea No. 20-404345 is known.

Each "Stage Small Lift Device" of Utility Model Registration No. 20-129753 and Utility Model Registration No. 20-219047 and Utility Model Registration No. 20-386847 are equipped with a project such as a projector on the upper support plate installed on the ceiling and the bottom. On the outer side between the lower support plate to be installed in each of the guides (expansion plate) in the X-shape continuously, the upper support plate is provided with a wire drum that is rotated forward and reverse by the reduction motor to wind the wire, the bottom of the lower support plate When the wire drum is rotated in the forward and reverse directions, the wire is wound or unrolled to raise / lower the lower support plate.

In addition, the "project lift device" of the Utility Model Registration No. 20-386847, the upper support plate installed from the ceiling is installed by the wire drum rotating in the forward and reverse by the reduction motor to wind the wire, the lower end of the wire is projected When the wire drum is fixed to the lower support plate and the wire drum is rotated forward and backward, the wire is wound or unrolled to raise / lower the lower support plate, but a multi-stage expansion pipe is installed between the upper support plate and the lower support plate to raise or lower the lower support plate. At that time, the multistage expansion pipe is stretched or compressed.

However, the conventional apparatuses formed as described above have a guide (elastic plate) continuously installed in the X-shape or multi-stage expansion pipes between the upper support plate and the lower support plate, and thus cannot be easily manufactured and assembled. There is a problem, there is a problem that takes a lot of manufacturing costs.

Also, when the project is drawn out, the lower support plate and the X-shaped guide (new construction plate) are completely exposed to the lower side of the ceiling, so it does not give an aesthetically good image. There is a problem to be created.

The present invention is to provide an improved ceiling-mounted project lift apparatus to solve the above problems.

The present invention, the projecting device case is formed in the shape of a rectangular parallelepiped so as to mount the upper cover separately formed on the top and the upper surface, the project device inside the project device case through the bottom of the projected by the forward and reverse operation of the tuber motor In that it can be stored or withdrawn inside the case,

In the lower part of the inside of the project device case, a mandrel is installed with the rear edge of the project mounting frame as an axis, but inside the project mounting frame, the project is mounted as a project angle control device so that the installation angle of the project can be arbitrarily adjusted. The upper side of the tube is installed obliquely and the tube of the tube is mounted on the shaft of the wire winding drum winding the wire, the bottom of the wire is connected to the sliding device installed on the upper plate of the project mounting frame of the tube Forward and reverse operation allows the wire to be wound or unwound in the wire wound drum, allowing the project to be exposed or housed underneath the project unit case with the project mounting frame; The purpose of the present invention is to provide a ceiling-mounted project lift device.

Another object of the present invention is to provide a mandrel of the rear end of the project mounting frame in the lower side of the project device case by the shaft, the projecting frame of the ceiling by the forward and reverse operation of the tuber motor and the winding or unwinding of the wire rope. It is to provide a ceiling-mounted project lift device that allows only the front (tip) of the project mounting frame to be exposed to the front without being completely exposed to the lower side, thereby giving a simple aesthetic and a sense of stability.

Still another object of the present invention is to mount the project inside the project mounting frame with a project angle control device, so that the installation angle of the project, that is, the ceiling-mounted project lift which can be adjusted to accurately scan the screen installed in front of the project I'm trying to provide a device.

Still another object of the present invention is to install a wire winding drum on a shaft of a tuber motor installed obliquely on the upper side of the inside of the project device case to wind a wire, and a lower end of the wire is installed on the upper plate of the project mounting frame. When the wire is wound or unwound by the wire winding drum by the operation of the tubular motor, the sliding device moves back and forth, so that the wire is wound and wound on the winding groove without being twisted when the wire is wound or unwound by the wire winding drum. It is to provide a ceiling-mounted project lift device to be built.

Another object of the present invention, by removing the edge of the upper cover is mounted on the top of the project device case to form an air distribution hole, and the project mounting frame to which the project is mounted to form a space on the bottom, front, rear, left and right, The purpose of this project is to provide a ceiling-mounted project lift device that allows the heat generated from the project to be easily discharged to the outside when the project is operated to obtain the air cooling effect of the project.

The above and other objects of the present invention,

The project device 20 is projected by the forward and reverse operation of the tuber motor 30 and the project device 20 in the inside of the project device case 2 to which the bottom surface is exploded and the upper cover 5 formed on the top is separately mounted. In that it can be stored inside or withdrawn through the bottom of the case (2),

A mandrel of the rear end edge of the project mounting frame 10 as a shaft 4 is installed inside the project device case 2;

A project angle adjusting device 50 mounted inside the project mounting frame 10 to adjust the angle of the project device 20;

On the upper end of the inside of the project device case 2, the tuber motor 30 is installed obliquely by a pair of eccentric support brackets 32;

A wire winding drum 33 having a wire winding groove 34 formed in a screw shape is mounted on the front end of the shaft 33 forming the tubular motor 30, and one end of the wire 36 is mounted on the wire winding drum 33. Wound the wire 36 in a fixed state;

In the center of the tip end of the inclined top plate 11 forming the project mounting frame 10 is provided with a sliding device 40 to move back and forth along the guide means when the wire 36 is wound or unwound on the wire winding drum 33, The sliding device 40 is connected to the lower end of the wire 36 wound on the wire winding drum 33;

By the forward and reverse operation of the tubular motor 30, the wire 36 is wound or unwound on the wire wound drum 33 and the project device 20 together with the project mounting frame 10 to the lower side of the project device case 2. To be exposed or housed; It is achieved by the ceiling-mounted project lift device (1) characterized in that.

Ceiling mounted project lift apparatus according to the present invention,

The projecting device case is formed in the shape of a rectangular parallelepiped so that the bottom is exploded and the upper cover is formed on the upper part.In the inside of the project device case, the project device is placed inside the project device case through the bottom which is popped by the reverse operation of the tuber motor. In that it can be stored or withdrawn,

Install the mandrel with the rear edge of the project mounting frame on the lower side of the project device case, but install the project inside the project mounting frame as the project angle control device, and the tuber motor on the upper side of the project device case at an angle. The wire winding drum is mounted on the shaft of the tubular motor, and the wire is wound on the shaft of the tube mounting motor by connecting the lower end of the wire with the sliding device installed on the upper plate of the project mounting frame. With the project mounting frame, the project can be exposed or stowed to the underside of the project device case while being wound or unrolled.

According to the present invention, the rear end of the project mounting frame is provided with a mandrel on the lower side of the project device case, and the project mounting frame is completely lowered to the lower side of the ceiling by the forward and reverse operation of the tuber motor and the winding or unwinding of the wire rope. Only the front (tip) of the project mounting frame can be exposed to the front without being exposed, giving a simple aesthetic sense and stability.In addition, the installation angle of the project can be adjusted by mounting the project as a project angle adjusting device inside the project mounting frame. The project can then be adjusted to accurately scan the front screen.

In another aspect, the present invention, by mounting a wire winding drum on the shaft of the tuber motor installed obliquely on the upper side of the inside of the project device case wound the wire and connecting the lower end of the wire with a sliding device installed on the upper plate of the project mounting frame By zooming, the sliding mechanism moves back and forth when the wire is wound or unwound by the action of the tubular motor so that the wire is wound and unwound in the winding groove without being twisted when the wire is wound or unwound by the wire winding drum. In addition, the air distribution hole is formed by removing the edge of the upper cover mounted at the top of the project device case, and the project mounting frame on which the project is mounted is formed in the project when operating the project by forming a space at the bottom, front, rear, left and right. To ensure that the heat is easily discharged to the outside It will be possible to achieve the air cooling effect of the project.

The above and other objects and features of the present invention will be more clearly understood by the following detailed description based on the accompanying drawings.

1 to 10b illustrate specific implementation examples of the ceiling-mounted project lift apparatus 1 according to the present invention.

1 and 2 are an exploded perspective view and a coupled state perspective view of a full-length project-type project lift apparatus 1 according to the present invention, Figures 3a and 3b is a combined state of the full-length project-type project lift apparatus 1 according to the present invention Figure is a cross-sectional view and an operation relationship explanatory drawing.

4A and 4B are perspective and side views of the project mounting frame 10 in the present invention, and FIGS. 5A and 5B are enlarged state views and main parts of the tuber motors 30 mounted inside the project device case 2. 6A and 6B are exploded perspective views and installation state diagrams showing a sliding device 40 installed in the project device frame 10.

7 and 8a and 8b is an exploded perspective view and a coupled state perspective view of the project angle control device 50 mounted on the present invention, Figures 9a and 9b and 10a and 10b is the project angle control device It is explanatory drawing of the operation relationship of (50).

Ceiling-mounted project lift apparatus 1 according to the present invention was formed as follows.

The project device case 2 is formed in the shape of a rectangular parallelepiped in which the upper part and the lower part communicate with each other, as illustrated in FIGS. 1 and 2, and the ceiling (specifically shown) is formed integrally with the mounting flange 2-1 at the lower end of the outer surface. When not buried in), the ceiling was supported on the upper surface of the mounting flange (2- 1), and the cable hole (3) was drilled on the upper side so that various cables such as electric cables could be installed.

On both sides of the project device case 2, the upper and lower parts of the project device case 2 are fixed (mounted) by means of mounting means 9-2 such as bolt screws or welding or rivets to fix and install the project device case 2. At the bottom of the computer bolt (not specifically shown) to be installed on the slab was to be mounted to the fixed mounting (9).

The upper cover 5 manufactured separately is mounted on the top of the project device case 2 formed as described above using a bolt screw or the like, and the upper cover 5 is rectangular to match the top of the project device case 2. Formed by bending the mounting piece (6) to the bottom of the upper cover (5) to form a lower side to remove the corners to form an air distribution hole (8), the carrying handle in the center of the upper surface of the upper cover (5) (7) was mounted so that the ceiling-mounted project lift apparatus 1 according to the present invention can be easily carried.

On the lower side of the inside of the project device case 2, the rear edge of the project mounting frame 10 is installed with a mandrel as the shaft 4, and the project mounting frame 10 is rotated in the forward and reverse directions based on the shaft 4 to project the device. It was made to be able to flow into the inside of the case 2 or to protrude (draw out) below.

On the upper end of the inside of the project device case 2, as illustrated in FIGS. 5A and 5B, the tuber motor 30 is installed obliquely by a pair of eccentric support brackets 32.

Both ends of the tuber motor 30 are bound to the eccentric bearing 32-1 of the eccentric support bracket 32, and each eccentric support bracket 32 is provided on the inner front and the rear of the project device case 2 on the center line. The tuber motor 30 was installed so as to be deflected so that the front end of the tuber motor 30 was deflected so as to be closer to the center line and the rear end was further expanded to the outside to keep the tuber motor 30 in an oblique state.

Since the tuber motor 30 is already known and commonly used articles, a detailed description of the configuration and operation principle will be omitted.

At the distal end of the shaft 31 forming the tuber motor 30, a wire winding drum 33 having a wire winding groove 34 formed in a spiral shape is fixed (mounted) by a fixing means such as a bolt to the outer circumference thereof. The wire 36 is wound around the groove 34, and one end of the wire 36 is fixed to the wire binding hole 35 formed in the wire winding drum 33 so that the wire 36 does not fall off even if it is completely loosened.

As illustrated in FIGS. 5B and 6A and 6B, a vertical guide hole 18 is formed at the center of the tip end of the inclined upper plate 11 forming the project mounting frame 10, and wound around the wire winding drum 33. The lower end of the wire 36 is mounted on the wire binding piece 43 of the sliding device 40 installed in the vertical guide hole 18 so that the wire 36 is later wound or unwound by the wire winding drum 33. Specifically, the sliding device 40 to be described is to slide back and forth.

On the lower side of the inside of the project device case 2, the rear end edge of the project mounting frame 10 was installed with a mandrel as a shaft 4.

4A and 4B, the project mounting frame 10 is formed with a rectangular upper plate 11 and a bottom plate 13 having an upper plate space 12 formed at a rear side thereof, and have a rectangular upper plate 11. Each slope of the bottom plate 13 was bent to form an upper support flange 11-1 and a lower support flange 13-1, and between the inclined top plate 11 and the bottom plate 13, the front and rear sides were separated. Each corner is formed in the shape of a rectangular parallelepiped which is open to the front and both sides by fixing the pair of the front support 15 having a high height h1 and the rear support 16 having a relatively low height h2, respectively, integrally. The support 15 was formed to be inclined backward by? Θ1 on the vertical line O1, and the inclined upper plate 11 was formed to be inclined by? Θ2 downward on the horizontal line O2.

In particular, the project mounting frame 10 to the front space 11 is formed in the front, the rear is also formed to be open or the back plate 14 is integrally attached to close the rear, both sides of the lower rear shaft hole (19) ) To be easily installed in the project device case (2) by the shaft (4).

In the center of the tip end of the inclined top plate 11, a sliding device 40 installed in the vertical guide hole 18 was formed as illustrated in FIGS. 6A and 6B.

The bearing mounting piece 42 was formed in a rectangular shape, but the bearing mounting holes 42-1 and 42-2 were drilled in the front and rear ends, respectively, and the wire mounting hole 43-1 in the upper center of the bearing mounting piece 42. The perforated wire binding piece 43 was integrally formed, and both sides of each of the bearing mounting holes 42-1 and 42-2 are provided with a gap retaining nut 47 and a bearing 46, respectively, for the shaft bolt 44. ) And an adjustment nut 45, the lower end of the wire 36 is attached to the wire mounting hole 43-1 of the wire binding piece 43 inserted upward from the lower side of the vertical guide hole 18. 38).

The project angle adjusting device 50 mounted on the inclined top plate 11 of the project mounting frame 10 to arbitrarily adjust the installation angle of the project device 20 was formed as illustrated in FIGS. 7 to 9b.

The project angle control device 50; An upper fixing bracket 51 mounted and fixed to the bottom of the inclined upper plate 11 forming the project mounting frame 10; In the lower side of the upper fixing bracket 51, the front and rear are mounted by the long bolt 56 and the nut 56-1 to be mounted to the left and right, and to the fixing bolt 57 while adjusting the left and right angles. Middle left and right rolling ball (60) fixed by; It is mounted so as to roll back and forth on the left and right sides of the middle left and right rolling holes 60 by the central shaft bolt 74-1 at the lower side of the middle left and right rolling holes 60, and the fixing bolts 75- A lower front and rear rolling ball 70 fixed by 3); The slide bar 78 is installed at each lower side corner of the front and rear rolling holes 70 so as to slide in and out, and the project 20 is mounted on the mounting piece 79-1 formed at the outer end of each slide bar 78. Project mounting arm 77 to be mounted; was formed.

The upper fixing fixture 51 in the project angle control device 50 is formed as described above; The upper fixing plate 52 is formed in a rectangular shape, and the inclined upper plate 11 forming the project mounting frame 10 by the mounting bolts 58 by drilling mounting holes 52-1 at each corner of the upper fixing plate 52. The front and rear mounting plate 53 is formed integrally side by side on the front and rear of the upper fixing plate 52, and the Y-axis central shaft hole 64 is drilled in the center of each front and rear mounting piece 53. The bolt 56 was installed and the Y-axis central shaft hole 64 drills the guide hole 55-1 on both sides in an arc shape, and then attaches the fixing bolt 55-2 to the middle left and right rolling holes 60. It was made.

Middle left and right rolling ball 60; The front plate 62-1, the back plate 62-2, and the side plates 62-2 and 62-4 are integrally formed on the side surface of the rectangular upper plate 61 to form a cube with a bottomed surface. And a long bolt 56 was inserted into the front plate 62-1 and the back plate 62-2, respectively, and the long bolt 56 was inserted into the front plate 62-1 and the back plate 62-2. The nut holes 65-1 and 65-2 were formed to screw the fixing bolts 57 fitted through the guide holes 55-1 of the upper fixing bracket 51, and each side plate 62 -2) A central shaft bolt 74-1 is formed in the center of the 62-4, and the central shaft bolt 74-1, which is fitted to the central shaft hole 74 of the lower front and rear rolling holes 70, is formed. Fixing bolts 75-3 and 75-4 fitted to the guide slots 75-1 by coupling and forming nut holes 67-1 and 67-2 on both sides of the X-axis central shaft hole 74, respectively. Was screwed together.

Lower front and rear rolling ball 70; A pair of side support pieces 73-1 and 73-2 were formed side by side on the inner side of the lower mounting plate 71, and at the center of each side support piece 73-1 and 73-2. The X-axis central shaft hole 74 of the "L" shape is formed to be opened to the upper end, and screwed to the X-axis central nut hole 66 of the central left and right rolling holes by inserting the central shaft bolt 74-1. On both sides of the central shaft bolt 74-1, guide long holes 75-1 and 75-2 are formed in an arc shape, and the fixing bolts 75-3 and 75-4 are inserted into the center left and right rolling holes 60. Threaded to the nut holes (67-1) (67-2), each corner of the lower mounting plate (71) drills the female mounting holes 72, respectively, project mounting by the fixing bolt 80 and the nut 81 The arm 77 was mounted while sliding (storing and unfolding) in and out.

Project mounting arm 77; The slide bar 78 is formed to be long, but the slide long hole 78-1 is formed to be drilled up and down inside the slide bar 78 so as to fit the fixing bolt 80, and at one end of the slide bar 78. The mounting hole 79-1 was formed integrally with the mounting piece 79 to be stepped to mount the project device 20 by the mounting bolt.

Hereinafter, the installation and operation relationship of the electric field embedded project lift apparatus 1 according to the present invention formed as described above will be described.

First, the project device 20 should be mounted on the project angle control device 50 of the total length embedded project lift apparatus 1 according to the present invention, and loosen the fixing bolts 80 of the lower front and rear rolling holes 70. In the released state, the project mounting arm 77 is properly moved in and out, and the fixing bolt 80 is completely tightened to completely fix each project mounting arm 77 to the lower front and rear rolling holes 70, and each project mounting arm. Insert the fixing bolt (not specifically shown) in the mounting hole (79-1) of the mounting piece (79) formed at the tip of (77) and screwed to mount the project device 20.

After the project device 20 is mounted, the fully-embedded project lift device 1 according to the present invention is embedded in a ceiling (not specifically shown).

Although not specifically illustrated, the computer bolts are fixed to the slab at regular intervals, and the lower end of the computer bolts is equipped with fixed mounting brackets 9 fixed to both sides of the project device case 2 to zoom in the electric field according to the present invention. The embedded project lift device 1 is installed (mounted), and the mounting flange 2-1 formed at the bottom of the outer surface of the project device case 2 is installed to support the bottom of the ceiling.

As described above, the tube is supported by both ends by a support bracket 32 by operating a switch (not specifically shown) in a state in which the electric field-embedded project lift apparatus 1 according to the present invention is embedded by installing in the ceiling. The motor 30 is operated in the forward direction.

When the tuber motor 30 operates in the forward direction, the wire winding drum 33 rotates together with the shaft 31 to release the wire 36 wound in the wire winding groove 34.

When the wire 36 wound around the wire winding groove 34 is released, as shown in FIG. 3A, the project device frame 10 introduced into the project device case 2 is illustrated in FIG. 3B. As described above, the front space 17-1 is completely exposed to the lower side of the project device case 2 by rotating about the axis 4.

When the wire 36 wound around the wire winding groove 34 is gradually released, the sliding device 40 coupled to the vertical guide hole 18 has a bearing 46 in contact with the bottom surface of the inclined top plate 11. Rolling supports the project frame 10 to rotate about the axis (4) while moving from the front end to the rear end.

When the front space 17-1 of the project frame 10 is completely exposed to the lower side of the project device case 2, the operation of the switch (not specifically shown) is stopped to stop the operation of the tuber motor 30. Let's do it.

The long bolt 56 and the nut 56-1 mounted on the upper fixing bracket 51 while the front space 17-1 of the project frame 10 is completely exposed to the lower side of the project case 2. Loosen slightly loosen and fixed bolts (57) in a somewhat loose state in the middle left and right rolling ball (60) to the left and right to adjust the left and right angles to adjust, adjust the left and right angles loosely combined long bolts ( 56) and the nut (56-1) and fixing bolt 57 is completely combined.

In particular, when adjusting the left and right angle by rolling the middle left and right rolling ball 60 to the left and right fixing bolts 57 screwed to the nut hole (65-1) (65-2) of the middle left and right rolling ball (60) Since it moves in opposite directions (up and down) along guide guide holes 55-1 and 55-2 formed on the mounting piece 53, the lower front and rear rolling holes 70 including the middle left and right rolling holes 60 and the project apparatus ( 20) rolls (moves) from side to side without shaking.

Fixed with each central shaft bolt 74-1 screwed to the side support pieces 73-1 and 73-2 of the lower front and rear rolling ball 70 in a state in which the right and left angles of the project device 20 are correctly adjusted. A screen on which the project device 20 is installed in front by rolling the project device 20 forward and backward together with the lower front and rear rolling holes 70 in a state where the bolts 75-3 and 75-4 are loosely loosened. Center shaft bolt 74-1 of each side support piece 73-1, 73-2 loosely released after adjusting the front and rear angles to adjust the front and rear angles of the project apparatus 20, not shown). ) And the fixing bolts 75-3 and 75-4 are completely tightened to complete the angle adjustment of the project device 20.

In particular, when adjusting the front gaze angle of the project device 20 by rolling the project device 20 forward and backward with the lower front and rear rolling ball 70 as described above of each side support piece (73-1) (73-2) Fixing bolts (75-3) (75-4) screwed to the nut holes (67-1) (67-2) of the intermediate left and right rolling hole (60) through guide holes (75-1) (75-2) Since the guide slots 75-1 and 75-2 are moved in opposite directions (up and down) along each other, the lower front and rear rolling holes 70 and the project device 20 are rolled back and forth without shaking.

In this way, after adjusting the angle of the front, rear, left and right of the project device 20, the reverse operation of the switch (not specifically shown) to operate the tuber motor 30 in reverse.

When the tuber motor 30 operates in reverse, the wire winding drum 33 rotates in reverse with the shaft 31, and when the wire winding drum 33 rotates in reverse with the shaft 31, The wire 36 is sequentially wound in the wire winding groove 34.

When the wires 36 thus loosened are sequentially wound in the wire winding grooves 34, the project device frame 10 on which the project device 20 is mounted is illustrated in FIG. 3A in a state as illustrated in FIG. 3B. As described above, the shaft 4 is slowly rotated upward based on the shaft 4 to be loaded into the inside of the project device case 2.

In particular, when the wire 36 is sequentially wound in the wire winding groove 34, when the project device frame 10 is slowly loaded into the inside of the project device case (2) was moved to the rear end of the vertical guide hole (18). The sliding device 40 supports the project device frame 10 while moving to the tip along the vertical guide hole 18 which is inclined upwardly and along the vertical guide hole 18 in which the sliding device 40 is obliquely rising. By moving to the tip and zooming, the wires 36 are sequentially wound in the wire winding groove 34 without overlapping or twisting each other.

When the project device frame 10 is fully loaded (loaded) inside the project device case 2, the operation of the switch (not specifically shown) is stopped.

As described above, the electric field-embedded project lift apparatus 1 installed in the ceiling is operated by a switch (not specifically shown) in forward and reverse direction to project the project apparatus frame equipped with the project apparatus 20 ( 10) can be loaded into the inside of the project device case (2) or withdrawn to the lower side, and the project device 20 with the project device frame 10 with the project device case (2) to the lower side of the project device case (2) The device 20 is activated to project material, illuminate the room or monitor the room.

Although the present invention has been described in detail only with respect to the specific embodiments described, it will be obvious to those skilled in the art that various modifications and changes can be made within the technical scope of the present invention, and such modifications and modifications belong to the appended claims.

1 is an exploded perspective view of a full-length project lift apparatus according to the present invention.

Figure 2 is a perspective view of a combined state-of-the-art projected lift apparatus according to the present invention.

Figure 3a and Figure 3b is a cross-sectional view and an operation relationship explanatory view showing a coupling state of the full-length embedded project lift apparatus according to the present invention.

Figures 4a and 4b is a perspective view and a side view showing a project mounting frame mounted on a full-length project-mounted project lift apparatus according to the present invention.

5a and 5b is a state diagram and an enlarged view showing the tuber motor mounted on the lift device case of the full-length project-type project lift apparatus according to the present invention.

Figure 6a and Figure 6b is an exploded perspective view and installation state shown by extracting the sliding device installed in the project frame of the electric field-embedded project lift apparatus according to the present invention.

7 and 8a and 8b is an exploded perspective view and a perspective view of the combined state of the project angle control device mounted on the full-length project-type project lift apparatus according to the present invention.

9A and 9B and FIGS. 10A and 10B are explanatory diagrams of an operation relationship of a project angle adjusting device mounted on the full-length project lift apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

1: Ceiling mounted project lift device 2: Project device case

4: Shaft Pin 5: Top Cover 7: Carrying Handle

10: Project mounting frame 20: Project device 30: Tuber motor

31: shaft 32: eccentric support bracket 33: wire winding drum

36: wire 40: sliding device 41: sliding bracket

46: bearing 50: angle adjustable project mounting device

51: upper fixing bracket 56: long bolt 60: middle left and right rolling ball

70: lower back and forth rolling ball 77: project mounting rock

Claims (10)

The project device 20 is projected by the forward and reverse operation of the tuber motor 30 and the project device 20 in the inside of the project device case 2 to which the bottom surface is exploded and the upper cover 5 formed on the top is separately mounted. In that it can be stored inside or withdrawn through the bottom of the case (2), A mandrel of the rear end edge of the project mounting frame 10 as a shaft 4 is installed inside the project device case 2; It is mounted on the inclined top plate 11 of the project mounting frame 10 is equipped with a project angle control device 50 to adjust the angle of the project device 20; On the upper end of the inside of the project device case 2, the tuber motor 30 is installed obliquely by a pair of eccentric support brackets 32; A wire winding drum 33 having a wire winding groove 34 formed in a screw shape is mounted on the front end of the shaft 33 forming the tubular motor 30, and one end of the wire 36 is mounted on the wire winding drum 33. Wound the wire 36 in a fixed state; In the center of the tip end of the inclined top plate 11 forming the project mounting frame 10 is provided with a sliding device 40 to move back and forth along the guide means when the wire 36 is wound or unwound on the wire winding drum 33, The sliding device 40 is connected to the lower end of the wire 36 wound on the wire winding drum 33; By the forward and reverse operation of the tubular motor 30, the wire 36 is wound or unwound on the wire wound drum 33 and the project device 20 together with the project mounting frame 10 to the lower side of the project device case 2. To be exposed or housed; Ceiling mounted project lift device characterized in that. The method according to claim 1, wherein the upper cover (5) mounted on the upper side of the project device case (2); Mounting the carrying handle (7) in the center of the upper surface, each corner is formed with an air distribution hole (8); Ceiling-mounted project lift apparatus, characterized in that. The project mounting frame 10 of claim 1, wherein a rear end edge of the project device case 2 is installed in a mandrel with a shaft 4; The inclined upper plate 11 and the lower plate 13 having the upper plate space 12 formed on the rear side in a rectangular shape; A pair of front supports 15 having a high height h1 and a rear support 16 having a relatively low height h2 are formed at each corner of the front and rear portions between the inclined top plate 11 and the bottom plate 13. Formed in a rectangular parallelepiped shape in which the front and rear sides are opened by being fixed integrally with each other; The front support 15 is formed to be inclined backward by? Θ1 from the vertical line O1, and the inclined upper plate 11 is formed to be inclined by? Θ2 downward on the horizontal line O2; In the center of the tip end of the inclined upper plate 11, the vertical guide hole 18 is formed as a long hole in the front and rear directions as a guide means; Ceiling mounted project lift device characterized in that. According to claim 1, Sliding device 40 for sliding back and forth along the guide means formed in the center of the front end of the inclined upper plate (11); The bearing mounting piece 42 is formed in a rectangular shape, and the bearing mounting holes 42-1 and 42-2 are drilled at the front and rear ends, respectively, and the wire mounting hole 43-1 is formed at the upper center of the bearing mounting piece 42. Integrally forming the perforated wire binding pieces 43; Two sides of each bearing mounting hole (42-1) (42-2) are provided with a gap retaining nut (47) and a bearing (46), respectively, and are mounted with an axial bolt (44) and an adjusting nut (45); In the wire mounting hole 43-1 of the wire binding piece 43 inserted into the upper side from the lower side of the vertical guide hole 18, the lower end of the wire 36 is bound by the binding piece 38; Ceiling mounted project lift device. The method according to claim 1, Project angle adjusting device 50 is mounted on the inclined top plate 11 of the project mounting frame 10 to adjust the angle of the project device 20; An upper fixing bracket 51 mounted and fixed to the bottom of the inclined upper plate 11 forming the project mounting frame 10; In the lower side of the upper fixing bracket 51, the front and rear are mounted by the long bolt 56 and the nut 56-1 to be mounted to the left and right, and to the fixing bolt 57 while adjusting the left and right angles. Middle left and right rolling ball (60) fixed by; It is mounted so as to roll back and forth on the left and right sides of the middle left and right rolling holes 60 by the central shaft bolt 74-1 at the lower side of the middle left and right rolling holes 60, and the fixing bolts 75- A lower front and rear rolling ball 70 fixed by 3); The slide bar 78 is installed at each lower side corner of the front and rear rolling holes 70 so as to slide in and out, and the project 20 is mounted on the mounting piece 79-1 formed at the outer end of each slide bar 78. Project mounting arm (77) to be mounted; ceiling-mounted project lift device, characterized in that formed by. The method according to claim 5, The upper fixing fixture 51 of the project angle control device 50 mounted on the inclined top plate 11 of the project mounting frame 10; Of the inclined upper plate 11 which forms the project mounting frame 10 by the mounting bolts 58 and the nuts 56-1 by drilling the mounting holes 52-1 at each corner of the upper fixing plate 52 formed in a rectangular shape. Mounted on the bottom; In the center of each front and rear mounting piece 53 formed integrally side by side on the front and rear of the upper fixing plate 52, a long bolt 56 is mounted by drilling a Y-axis central shaft hole 64; Y-axis central shaft hole (64) on both sides of the guide hole (55-1) is drilled in an arc shape, the fixing bolt (55-2) is screwed into the middle left and right rolling holes (60); Project lift device. The method according to claim 5, the middle left and right rolling sphere (60) of the projector angle control device 50 is mounted on the inclined top plate 11 of the project mounting frame (10); The front plate 62-1, the back plate 62-2, and the side plates 62-2 and 62-4 are integrally formed on the side of the rectangular top plate 61; The front plate 62-1 and the back plate 62-2 respectively drill the Y-axis central shaft hole 64 at the center thereof to insert the long bolts 56, and the nut holes (2) on both sides of the Y-axis central shaft hole 64. 65-1) and 65-2 to screw the fixing bolts 57 fitted through the guide holes 55-1 of the upper fixing brackets 51; A central shaft bolt 74 is formed at the center of each side plate 62-2 and 62-4 to form an X axis central nut hole 66 to be fitted into the X axis central axis hole 74 of the lower front and rear rolling holes 70. -1) and the fixing bolts (75-3) to be fitted to the guide hole (75-1) by forming nut holes (67-1) (67-2) on both sides of the X-axis central shaft hole 74, respectively 75-4) screwed together; ceiling mounted project lift device characterized in that. The method according to claim 5, the lower front and rear rolling sphere 70 of the project angle control device 50 mounted to the inclined top plate 11 of the project mounting frame 10; A pair of side support pieces 73-1 and 73-2 formed on the inner side of the lower mounting plate 71 side by side; In the center of each side support piece (73-1) (73-2), the X-axis central shaft hole (74) is formed to open to the upper end by inserting the central shaft bolt (74-1) X of the central left and right rolling ball (60) Screwed to the central shaft nut hole 66; On both sides of the central shaft bolt 74-1, guide long holes 75-1 and 75-2 are formed in an arc shape, and the fixing bolts 75-3 and 75-4 are inserted into the center left and right rolling holes 60. Screwed to nut holes 67-1 and 67-2; Each corner of the lower mounting plate (71) is drilled through the arm mounting holes (72), respectively, by mounting the project mounting arm (77) by the fixing bolt (80) and the nut (81); Device. The method according to claim 5, Project mounting arm 77 of the project angle control device 50 mounted on the inclined top plate 11 of the project mounting frame 10; The slide bar 78 is formed to be long, but the slide bolt 78-1 is formed to be drilled up and down inside the slide bar 78 to fit the fixing bolt 80; One end of the slide bar 78 is formed integrally to step the mounting piece 79, the mounting hole (79-1) is drilled to mount the project device 20 by the mounting bolt; Type project lift device. According to claim 8, X-axis central shaft hole 74 is formed to be opened to the upper end in the center of each side support piece (73-1) (73-2); The ceiling-mounted project lift device, characterized in that formed "L" type.

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