Multimedia platform for improving speech convenience

文档序号:767182 发布日期:2021-04-09 浏览:16次 中文

阅读说明:本技术 提高演讲便利性的多媒体讲台 (Multimedia platform for improving speech convenience ) 是由 文定 于 2020-12-24 设计创作,主要内容包括:本发明公开了提高演讲便利性的多媒体讲台,包括多媒体讲台本体,在多媒体讲台本体上设置有扩展组件,在多媒体讲台本体的上侧水平开设有条形安装孔,安装孔的前、后孔壁上沿着安装孔的轴线均设置有滑槽,滑槽靠近安装孔孔口的一端为封闭端;扩展组件组件包括水平设置的滑板以及固定在滑板一端的挡板,滑板的另一端插入安装孔中,在滑板的前、后侧壁上远离挡板的一侧均设置有限位块,限位块分别各与一个滑槽配合,在挡板远离滑板的一端设置有把手。本发明在需要扩展用于支撑被展示物体的承载面时,拉动把手,从而将滑板从多媒体讲台本体内部拉出,增大多媒体讲台的用于展示物体的承载面,提高多媒体讲台使用的便利性。(The invention discloses a multimedia platform for improving the convenience of speech, which comprises a multimedia platform body, wherein an expansion assembly is arranged on the multimedia platform body, a strip-shaped mounting hole is horizontally formed in the upper side of the multimedia platform body, sliding grooves are formed in the front hole wall and the rear hole wall of the mounting hole along the axis of the mounting hole, and one end, close to the hole opening of the mounting hole, of each sliding groove is a closed end; the extension subassembly includes the slide that the level set up and fixes the baffle in slide one end, and the other end of slide inserts in the mounting hole, keeps away from the one side of baffle on the preceding of slide, the rear side wall and all is provided with the stopper, and the stopper respectively with a spout cooperation, keep away from the one end of slide at the baffle and be provided with the handle. When the bearing surface for supporting the displayed object needs to be expanded, the handle is pulled, so that the sliding plate is pulled out from the inside of the multimedia platform body, the bearing surface of the multimedia platform for displaying the object is increased, and the use convenience of the multimedia platform is improved.)

1. Improve multimedia platform of speech convenience, including multimedia platform body (1), its characterized in that: the multimedia platform comprises a multimedia platform body (1), and is characterized in that an expansion assembly is arranged on the multimedia platform body (1), a strip-shaped mounting hole (2) is horizontally formed in the upper side of the right side wall of the multimedia platform body (1), the long diameter of the cross section of the mounting hole (2) is parallel to the horizontal plane, sliding grooves (3) are formed in the front hole wall and the rear hole wall of the mounting hole along the axis of the mounting hole (2), and one end, close to the hole opening of the mounting hole (2), of each sliding groove (3) is a closed end;

the extension subassembly includes slide (4) that the level set up and fixes baffle (5) in slide (4) one end, during the other end of slide (4) inserted mounting hole (2), keep away from one side of baffle (5) on the preceding, the rear side wall of slide (4) and all be provided with stopper (6), stopper (6) respectively with a spout (3) cooperation baffle (5) keep away from the one end of slide (4) and be provided with handle (7).

2. The multimedia platform for improving convenience of lecture according to claim 1, wherein: all be provided with hole of stepping down (8) that a plurality of axes are on a parallel with the horizontal plane and perpendicular to mounting hole (2) axis on preceding, the rear side wall of slide (4), the lower side wall hole wall of hole of stepping down (8) runs through the lower surface of slide (4) all rotate in the hole of stepping down (8) and install antifriction bearing (9), the axis of antifriction bearing (9) coincides with the axis of the hole of stepping down (8) that corresponds, and the downside of its outer lane contacts with the lower side hole wall of mounting hole (2).

3. The multimedia platform for improving convenience of lecture according to claim 2, wherein: all be provided with three hole (8) of stepping down on the preceding, the back lateral wall of slide (4), hole (8) of stepping down is evenly distributed along the axis of mounting hole (2) interval in proper order.

4. The multimedia platform for improving convenience of lecture according to claim 2, wherein: antifriction bearing (9) are installed in hole (8) of stepping down through connecting axle (10), the one end of connecting axle (10) is connected with the hole bottom of hole (8) of stepping down, and its other end and antifriction bearing (9)'s hole interference fit.

5. The multimedia platform for improving convenience of lecture according to claim 1, wherein: a support component is arranged on the lower surface of the sliding plate (4), and comprises a support plate (11) fixed on the lower surface of the sliding plate (4), a telescopic rod (12) with one end hinged with one end of the support plate (11) close to the handle (7) and lockable in axial length, and a support block (13) fixed on the lower side of the right side wall of the multimedia platform body (1);

the axis of the hinge is parallel to the horizontal plane and is vertical to the axis of the mounting hole (2);

a strip-shaped groove (14) for inserting the telescopic rod (12) and the supporting plate (11) into the multimedia platform body (1) is formed in the lower side hole wall of the mounting hole (2) along the axis of the lower side hole wall, and one end, close to the hole opening of the mounting hole (2), of the strip-shaped groove (14) is an open end;

when the limiting block (6) is in contact with the closed end of the sliding groove (3), the telescopic rod (12) is rotated around the hinged axis and the length of the telescopic rod (12) is adjusted, so that the end, far away from the hinged part, of the telescopic rod (12) can abut against the upper surface of the supporting block (13) from top to bottom.

6. The multimedia platform for improving convenience of lecture according to claim 5, wherein: a V-shaped limiting groove (15) is formed in the upper surface of the supporting block (13), and the lower side, far away from the hinged end, of the telescopic rod (12) is inserted into the limiting groove (15).

7. The multimedia platform for improving convenience of lecture according to claim 5, wherein: the telescopic rod (12) comprises a sleeve (16) with one end hinged with the support plate (11), a moving rod (17) with one end inserted into an inner hole of the sleeve (16) and the other end capable of being abutted against the support block (13), and a limit pin (18) with one end capable of penetrating through the side wall of one side of the sleeve (16) and then being inserted into the moving rod (17).

8. The multimedia podium for improving lecture convenience according to claim 7, wherein: a through groove (22) with a semicircular cross section is formed in the end face of the bottom end of the sleeve (16), one end of the limiting pin (18) penetrates through the through groove (22) and then is inserted into the moving rod (17), and the side wall of the moving rod (17) is internally tangent to the groove wall of the through groove (22).

9. The multimedia podium for improving lecture convenience according to claim 8, wherein: one end, far away from the sleeve (16), of the side wall of the moving rod (17) is provided with a first limiting hole (19), a second limiting hole (20) is formed in the supporting plate (11), and when the telescopic rod is horizontal and is shortened to the inside of a sliding plate projection in the projection of a horizontal plane, the first limiting hole (19) and the second limiting hole (20) can be coaxial.

10. The multimedia podium for improving lecture convenience according to any one of claims 1 to 9, wherein: one end that slide (4) were kept away from in baffle (5) is provided with the handle mounting groove install handle (7) in the handle mounting groove handle (7) keep away from one side of handle mounting groove tank bottom and set up application of force groove (21), application of force groove (21) extend along the axis of mounting hole (2) earlier, extend upwards along the direction of perpendicular to horizontal plane is vertical again.

Technical Field

The invention relates to the field of multimedia, in particular to a multimedia platform for improving the convenience of speech.

Background

Multimedia refers to a man-machine interactive information exchange and transmission medium that combines two or more media in a computer system. The media used include text, pictures, photos, sounds (including music, voice, special sound effects), animation and movies, and interactive functions provided by programs. Multimedia works are distributed via optical discs and networks.

With the development of technology, in order to improve the vividness and richness of a speech, multimedia and speech contents are now combined to vividly deliver rich information to audiences. In order to facilitate the speaker to smoothly combine the speech content with the multimedia, a multimedia platform is born. The intelligent cabinet comprises a cabinet body made of cold-rolled steel plates, a display screen, a keyboard, a mouse, a multifunctional interface and a host machine, wherein the display screen, the keyboard, the mouse and the multifunctional interface are installed at the top of the cabinet body, and the host machine is installed in the inner cavity of the cabinet body. The host computer is in signal connection with the projection device. The presenter puts the required displayed manuscript into the storage device of the host computer, calls the content of the manuscript through the mouse and projects the content of the manuscript onto the screen through the projection device.

The size of the multimedia podium is 1100mm long by 780mm wide by 1000mm high, limited by the presentation environment and the presentation surface on the back. Because display screen, keyboard, mouse, multi-functional interface need be placed at the top of multimedia podium, and still need place data such as textbook during lectures such as giving lessons, lead to when needs some showpiece of audio-visual show or do the experiment, the space of placing is lacked to the multimedia podium top surface, lead to the speech inconvenience to some needs on-the-spot demonstration, are unfavorable for the speech to go on smoothly.

Disclosure of Invention

The invention aims to: the utility model provides an improve multimedia platform of speech convenience, solved the multimedia platform top surface and lacked the space of placing, lead to inconvenient to some speech that need the on-the-spot demonstration, be unfavorable for the speech to go on smoothly etc. above-mentioned technical problem.

The technical scheme adopted by the invention is as follows:

the multimedia platform for improving the speech convenience comprises a multimedia platform body, wherein an expansion assembly is arranged on the multimedia platform body, a strip-shaped mounting hole is horizontally formed in the upper side of the right side wall of the multimedia platform body, the long diameter of the cross section of the mounting hole is parallel to the horizontal plane, sliding grooves are formed in the front hole wall and the rear hole wall of the mounting hole along the axis of the mounting hole, and one end, close to the hole opening of the mounting hole, of each sliding groove is a closed end;

the extension subassembly includes the slide that the level set up and fixes the baffle in slide one end, the other end of slide inserts in the mounting hole, keeps away from the one side of baffle on the preceding, the rear side wall of slide and all is provided with the stopper, the stopper respectively with a spout cooperation the one end that the slide was kept away from to the baffle is provided with the handle.

Further, all be provided with the hole of stepping down that a plurality of axes are on a parallel with the horizontal plane and perpendicular to mounting hole axis on the preceding, the back lateral wall of slide, the lower side wall pore wall in the hole of stepping down runs through the lower surface of slide all rotate in the hole of stepping down and install antifriction bearing, the axis of antifriction bearing coincides with the axis in the hole of stepping down that corresponds, and the downside of its outer lane contacts with the lower side pore wall of mounting hole.

Further, all be provided with three holes of stepping down on the preceding, the back lateral wall of slide, the hole of stepping down evenly distributed at interval in proper order along the axis of mounting hole.

Further, antifriction bearing passes through the connecting axle and installs in the hole of stepping down, the one end of connecting axle is connected with the hole bottom in the hole of stepping down, and its other end and antifriction bearing's hole interference fit.

Furthermore, a support assembly is mounted on the lower surface of the sliding plate, and comprises a support plate fixed on the lower surface of the sliding plate, a telescopic rod with one end hinged to one end of the support plate close to the handle and lockable in axial length, and a support block fixed on the lower side of the right side wall of the multimedia platform body;

the axis of the hinge is parallel to the horizontal plane and perpendicular to the axis of the mounting hole;

a strip-shaped groove for inserting the telescopic rod and the supporting plate into the multimedia platform body is formed in the hole wall of the lower side of the mounting hole along the axis of the hole wall, and one end, close to the hole opening of the mounting hole, of the strip-shaped groove is an open end;

when the limiting block is contacted with the closed end of the sliding groove, the telescopic rod is rotated around the hinged axis, the length of the telescopic rod is adjusted, and the telescopic rod is far away from the hinged end and is abutted against the upper surface of the supporting block from top to bottom.

Furthermore, a V-shaped limiting groove is formed in the upper surface of the supporting block, and the lower side, far away from the hinged end, of the telescopic rod is inserted into the limiting groove.

Furthermore, the included angle of the groove walls at the two sides of the limit groove is set, and the bottom end face and the circumferential side wall of the telescopic rod are respectively contacted with the groove walls at the two sides of the limit groove.

Furthermore, the telescopic link includes that one end and the articulated sleeve of backup pad, one end insert in the sleeve hole and the other end can insert the gag pin in the carriage release lever after the telescopic lateral wall of one side can run through sleeve with the supporting shoe butt.

Furthermore, a through groove with a semicircular cross section is formed in the end face of the bottom end of the sleeve, one end of the limiting pin penetrates through the through groove and then is inserted into the moving rod, and the side wall of the moving rod is internally tangent to the wall of the through groove.

Furthermore, one end, far away from the sleeve, of the side wall of the moving rod is provided with a first limiting hole, a second limiting hole is formed in the supporting plate, and when the telescopic rod is horizontal and is shortened to the inside of the projection of the sliding plate in the projection of the horizontal plane, the first limiting hole and the second limiting hole can be coaxial.

Further, the baffle is kept away from the one end of slide and is provided with the handle mounting groove install the handle in the handle mounting groove the handle is kept away from one side of handle mounting groove tank bottom and is set up the application of force groove, the application of force groove extends along the axis of mounting hole earlier, extends upwards vertically along the direction of perpendicular to horizontal plane again.

Due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the multimedia platform for improving the convenience of the speech, when the bearing surface for supporting the displayed object needs to be expanded during the speech, the handle is pulled, so that the sliding plate is pulled out from the inside of the multimedia platform body, the bearing surface for displaying the object of the multimedia platform is increased, and the convenience of the multimedia platform in use is improved;

2. according to the multimedia platform for improving the convenience of speech, the contact between the sliding plate and the mounting hole is preferably rolling contact in order to facilitate the pulling of the sliding plate, the friction force between the sliding plate and the mounting hole is effectively reduced through the rolling bearing, a user can pull the sliding plate or push the sliding plate smoothly and laborsavingly, and the convenience of use of the multimedia platform is improved;

3. according to the multimedia platform for improving the convenience of speech, one end of the sliding plate close to the handle is suspended, so that when the sliding plate bears the weight of an object, one end of the sliding plate, which is positioned in the mounting hole, bears all the weight, and the sliding plate is easy to bend, deform or even break;

4. according to the multimedia platform for improving the convenience of speech, the end face of the bottom end of the sleeve is provided with the through groove with the semicircular cross section, one end of the limiting pin penetrates through the through groove and then is inserted into the movable rod, and the side wall of the movable rod is internally tangent to the wall of the through groove. Therefore, the corresponding hole on the moving rod can be exposed, so that a user can conveniently and visually judge whether a structure matched with the limiting pin on the sleeve is opposite to a structure matched with the limiting pin on the moving rod or not, and the use convenience of the invention is improved;

5. according to the multimedia platform for improving the convenience of speech, when the telescopic rod is folded below the sliding plate, in order to prevent one end of the telescopic rod, which is far away from the hinge, from falling down and not facilitate the extraction or the back push of the sliding plate, the second limiting hole and the first limiting hole are preferably strung together by shortening one end of the limiting pin pulled out by the telescopic rod in the embodiment, so that the end of the telescopic rod, which is far away from the hinge, is prevented from falling down, and the convenience of use of the multimedia platform is further improved; the limiting pin has multiple purposes, the utilization rate of parts is improved, and the manufacturing cost of the invention is reduced.

Drawings

In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings needed to be used in the embodiment will be briefly described below, and it should be understood that the proportional relationship of each component in the drawings in this specification does not represent the proportional relationship in the actual material selection design, and is only a schematic diagram of the structure or the position, in which:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic view of the structure of the mounting hole;

FIG. 4 is a schematic bottom view of the skateboard;

FIG. 5 is a schematic view of the telescopic rod folded under the sliding plate;

FIG. 6 is a cross-sectional view of FIG. 5;

fig. 7 is a schematic end view of the bottom of the sleeve.

Reference numerals in the drawings indicate:

1-multimedia platform body, 2-mounting hole, 3-sliding groove, 4-sliding plate, 5-baffle, 6-limiting block, 7-handle, 8-abdicating hole, 9-rolling bearing, 10-connecting shaft, 11-supporting plate, 12-telescopic rod, 13-supporting block, 14-strip-shaped groove, 15-limiting groove, 16-sleeve, 17-moving rod, 18-limiting pin, 19-first limiting hole, 20-second limiting hole, 21-force application groove and 22-through groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

The present invention will be described in detail with reference to fig. 1 to 7.

Example 1

As shown in fig. 1 to 7, the multimedia platform for improving the convenience of speech of the present invention includes a multimedia platform body 1, an extension assembly is disposed on the multimedia platform body 1, a bar-shaped mounting hole 2 is horizontally disposed on the upper side of the right side wall of the multimedia platform body 1, the long diameter of the cross section of the mounting hole 2 is parallel to the horizontal plane, sliding grooves 3 are disposed on the front and rear hole walls along the axis of the mounting hole 2, and one end of the sliding groove 3 close to the orifice of the mounting hole 2 is a closed end;

the extension subassembly includes slide 4 that the level set up and fixes baffle 5 in slide 4 one end, the other end of slide 4 inserts mounting hole 2, and the one side of keeping away from baffle 5 on the preceding, the rear side wall of slide 4 all is provided with stopper 6, stopper 6 respectively with the cooperation of a spout 3 the one end that slide 4 was kept away from to baffle 5 is provided with handle 7.

When during the speech, need the extension be used for supporting the holding surface of the object that is demonstrateed, pulling handle 7 to pull out slide 4 from inside the multimedia podium body 1, increase the holding surface that is used for demonstrateing the object of multimedia podium, improve the convenience that the multimedia podium used.

Example 2

This embodiment is to further explain the present invention on the basis of the above embodiment.

All be provided with the hole 8 of stepping down that a plurality of axes are on a parallel with the horizontal plane and 2 axes of perpendicular to mounting hole on the preceding, the back lateral wall of slide 4, the lower side wall pore wall of the hole 8 of stepping down runs through the lower surface of slide 4 all rotate in the hole 8 of stepping down and install antifriction bearing 9, the axis of antifriction bearing 9 coincides with the axis of the hole 8 of stepping down that corresponds, and the downside of its outer lane contacts with the lower side pore wall of mounting hole 2.

Further, all be provided with three hole 8 of stepping down on the preceding, the back lateral wall of slide 4, hole 8 of stepping down evenly distributed at interval in proper order along the axis of mounting hole 2.

Further, antifriction bearing 9 is installed in the hole of stepping down 8 through connecting axle 10, the one end of connecting axle 10 is connected with the hole bottom in hole of stepping down 8, its other end and antifriction bearing 9's hole interference fit.

In order to pull the sliding plate 4, the contact between the sliding plate and the mounting hole 2 is preferably rolling contact, the friction force between the sliding plate and the mounting hole is effectively reduced through the rolling bearing 9, a user can pull the sliding plate 4 or push the sliding plate 4 smoothly and laborsavingly, and the use convenience of the invention is improved.

Example 3

This embodiment is to further explain the present invention on the basis of the above embodiment.

As shown in fig. 1, 2, 4-6, a support assembly is mounted on the lower surface of the sliding plate 4, and the support assembly includes a support plate 11 fixed on the lower surface of the sliding plate 4, a telescopic rod 12 with one end hinged to one end of the support plate 11 close to the handle 7 and capable of locking the axial length, and a support block 13 fixed on the lower side of the right side wall of the multimedia platform body 1;

the axis of the hinge is parallel to the horizontal plane and is vertical to the axis of the mounting hole 2;

a strip-shaped groove 14 for inserting the telescopic rod 12 and the support plate 11 into the multimedia platform body 1 is formed in the lower side hole wall of the mounting hole 2 along the axis of the lower side hole wall, and one end, close to the hole opening of the mounting hole 2, of the strip-shaped groove 14 is an open end;

when the limiting block 6 contacts with the closed end of the chute 3, the telescopic rod 12 is rotated around the hinged axis and the length of the telescopic rod 12 is adjusted, so that the end, far away from the hinged axis, of the telescopic rod 12 abuts against the upper surface of the supporting block 13 from top to bottom.

Because the one end that is close to the handle on the slide 4 is unsettled, leads to its one end that is located the mounting hole to bear all gravity when bearing object gravity, leads to slide 4 bending deformation even fracture easily, consequently supports the free end of slide through the supporting component preferentially, can reduce the slide effectively and be located the gravity that the one end of mounting hole bore, prevents that the too big and deformation's of slide free end atress condition from appearing.

Meanwhile, when the sliding plate needs to be folded in the mounting hole 2, the telescopic rod is shortened and rotates around the hinged axis, so that the sliding plate is integrally folded below the sliding plate, then the sliding plate is pushed towards the mounting hole, the sliding plate enters the mounting hole, the telescopic rod 12 and the supporting plate 11 are inserted into the strip-shaped groove 14, and the supporting assembly and the extension assembly are folded in the multimedia platform body 1.

Example 4

This embodiment is to explain the present invention further based on embodiment 3.

As shown in fig. 2, a V-shaped limiting groove 15 is formed on the upper surface of the supporting block 13, and the lower side of the end of the telescopic rod 12 away from the hinge is inserted into the limiting groove 15.

Preferably, the included angle between the two side groove walls of the limit groove 15 is 90 °, and the bottom end surface and the circumferential side wall of the telescopic rod 12 are respectively in contact with the two side groove walls of the limit groove 15.

The arrangement of the limiting groove 15 effectively prevents the bottom end of the telescopic rod 12 from slipping.

Example 5

This embodiment is to explain the present invention further based on embodiment 3.

As shown in fig. 2, the telescopic rod 12 includes a sleeve 16 having one end hinged to the support plate 11, a moving rod 17 having one end inserted into an inner hole of the sleeve 16 and the other end capable of abutting against the support block 13, and a stopper pin 18 having one end capable of penetrating through one side wall of the sleeve 16 and then being inserted into the moving rod 17.

When the telescopic rod needs to be shortened, the limiting pin 18 is pulled out, so that the axial stop between the moving rod 17 and the sleeve 16 is released, the moving rod 17 can be inserted into the sleeve 16, and the length of the telescopic rod is shortened; then the telescopic rod is folded under the sliding plate by rotating around the hinged axis.

When the limit pin 18 penetrates through one side wall of the sleeve 16 and then is inserted into the moving rod 17, a hole through which the limit pin 18 penetrates and a corresponding hole in the moving rod 17 on the sleeve 16 are required to be coaxial, and the corresponding hole in the moving rod 17 is located inside the sleeve 16, so that whether the two holes are coaxial or not is not convenient to judge, therefore, a through groove 22 with a semicircular cross section is arranged on the end surface of the bottom end of the sleeve 16, one end of the limit pin 18 penetrates through the through groove 22 and then is inserted into the moving rod 17, and the side wall of the moving rod 17 is internally tangent to the wall of the through groove. Thus, the corresponding hole on the moving rod 17 can be exposed, so that a user can conveniently and visually judge whether the structure matched with the limiting pin 18 on the sleeve 16 is opposite to the structure matched with the limiting pin 18 on the moving rod 17, and the use convenience of the invention is improved.

Example 6

This embodiment is to explain the present invention further based on embodiment 5.

One end of the side wall of the moving rod 17, which is far away from the sleeve 16, is provided with a first limiting hole 19, the supporting plate 11 is provided with a second limiting hole 20, and when the telescopic rod is horizontal and is positioned inside the projection of the sliding plate in the projection of the telescopic rod shortened to the horizontal plane, the first limiting hole 19 and the second limiting hole 20 can be coaxial.

When the telescopic rod is folded under the sliding plate, in order to prevent the end of the telescopic rod far away from the hinge from dropping and the sliding plate is inconvenient to be drawn out or pushed back, the end of the limiting pin drawn out by the telescopic rod in embodiment 5 is preferably shortened to string the second limiting hole 20 and the first limiting hole 19, so that the end of the telescopic rod far away from the hinge is prevented from dropping, and the convenience of the use of the invention is further improved.

Meanwhile, one part of the limiting pin has multiple purposes, the utilization rate of parts is improved, and the manufacturing cost of the invention is reduced.

Example 7

The arrangement of the handle in the invention is specifically as follows:

one end of the baffle 5, which is far away from the sliding plate 4, is provided with a handle mounting groove, a handle 7 is mounted in the handle mounting groove, one side of the handle 7, which is far away from the bottom of the handle mounting groove, is provided with an application groove 21, the application groove 21 extends along the axis of the mounting hole 2 firstly, and then extends vertically upwards along the direction perpendicular to the horizontal plane.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

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