JP2005121918A - Angle adjusting table apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an angle adjusting table apparatus for a projector etc., whose structure is simplified and consequently whose cost is reduced, and capable of adjusting an angle in a short time. <P>SOLUTION: The apparatus is provided with: a mount 14 supported by a supporting part and arranged at a desired height position so as to place the projector P etc., on its top face; and an angle setting mechanism 16 for turning the mount at least around a horizontal axis (41) and fixing the mount at an optional tilt angle. The angle setting mechanism includes: an engaging rotating part 35 one side of which is connected to the mount 14 and the other side of which is connected to an input part 47; and a fixing part 60. An engaging tooth mount directly connected to the mount is rotated through the engaging rotating part with an input operation, and the mount is tilted. While looking at the screen, the user can intuitively and finely adjust and set the angle with a rotation inputting operation and by the fixing part. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an angle adjustment table device, and more particularly to an angle adjustment table device that mounts and supports an optical projection device such as a projector that optically projects an image on a screen to display an enlarged screen.

  Projectors that include OHP devices and other electro-optical enlarged display projection devices as devices that facilitate explanation while simultaneously displaying photographs, characters, figures, illustrations, etc. that are enlarged and displayed at schools, offices, lectures, workshops, various presentations, etc. Is widely used. In particular, recently, devices such as a projection display that optically enlarges an image of a small display device made of a CRT, a liquid crystal panel, or the like and projects the image on a screen to display on a large screen have appeared. When using these projectors, for example, a large screen is placed on the podium or on its side, and images, such as slides, liquid crystals, and CRT screens, are optically enlarged and projected toward this. It is necessary to stabilize the projector body by placing it on a desk or table, and then adjust the angle of the light source of the projector body upward so that it is correctly displayed on the screen. For this adjustment, a book or other block is usually placed on a desk and leaned on it to be installed with a gradient. In this case, the angle adjustment for displaying correctly on the screen is complicated and time consuming, and the support is also unstable, and there is a risk of dropping and damaging and destroying expensive electronic optical equipment. In addition, for example, Patent Document 1 includes a top plate that can be used in a standing posture and an installation stand that can be used in a sitting posture, and the installation stand is pulled out and stored below the top plate. A free-form lecture table is shown.

JP 2001-161451 A

  In the teaching desk of Patent Document 1 described above, a projector is arranged on the top as necessary, and the personal computer is placed on the projector by pulling out the installation table and connected to the projector for use. The desk in this document is not functionally different from the case where desks and tables with different heights are arranged in parallel, and the angle adjustment of the projector that the user performs in a standing position is the lower surface of the front part. It is necessary to adjust the angle by placing a base for making it upwardly inclined to the side, or by extending and contracting the gradient adjusting legs provided on the projector main body one by one. The height adjustment legs provided on the projector body are usually screw-in bolts and slide telescopic legs, so that each leg provided at the four corners of the projector body is screwed in and out There is a problem that the height adjustment work to be performed is still complicated, takes time, and the support is often unstable. In addition, when a personal computer is placed on a drawer / retractable installation stand, it is pulled out only in one direction, so the direction and position of the drawer is fixed, and it is difficult to effectively use it for a large lecturer. there were.

  The present invention has been made in view of the above-described conventional problems, and provides an angle adjustment base device that can be formed compactly as well as being able to perform angle adjustment easily in a short time with a simple structure and at a low cost. It is to be. Another object of the present invention is to provide an angle adjustment base device that is small and compact and can be used to place a mounting base such as a connection device with a projector main body effectively using the entire outer periphery of the apparatus.

  In order to achieve the above object, the present invention is an angle adjustment base device such as a projector, and is provided with a support portion 12 and a projector P or the like placed on the upper surface side by being supported by the support portion and disposed at a required height position. And an angle setting mechanism 16 for fixing the gantry at an arbitrary inclination angle while allowing the gantry to swing at least around the horizontal axis (41), and the angle setting mechanism has one side on the gantry 14 It is comprised from the angle adjustment stand apparatus (10) containing the meshing rotation part 35 which was connected and the other side was connected with the input part 47, and the fixing | fixed part 60. FIG. The configuration of the support portion basically has only to be a base and legs to be supported, or a support post, and the specific configuration and material may be arbitrarily set. Further, the gantry may have an arbitrary configuration as long as it has a structure in which the projector and other devices can be stably mounted on the upper surface and can be tilted and adjusted. Specific operation portions of the input unit and the fixed unit may be configured as a lever handle or other input operation means. It is preferable that the knob handle be free of space and has little operational risk.

  At this time, one side of the biting rotation unit 35 is directly connected to the gantry 14, and the gantry 14 may be directly tilt-adjusted through an input operation from the input unit 47 by one biting rotation unit. The input operation from the input unit may be transmitted by gear interlocking or belt interlocking to tilt the gantry, but the gear part may be directly connected to the gantry.

  Further, an occlusal tooth base 38 having occlusal teeth 40 that form one side of the occlusal rotating part 35 may be protruded and fixed to the lower portion of the gantry 14. The gantry and the biting part can be directly connected to each other so that the gantry and the biting rotation part can be connected very easily. In addition, if the rotation range of the gantry is determined, the occlusal teeth pedestal can be configured with a simple long plate, etc., and the tilt angle of the gantry can be set to eliminate the risk of dropping an expensive projector etc. Become.

  At that time, the input unit 47 may include an input cam 46 that meshes with the meshing teeth 40 of the meshing tooth base 38 and an input handle 56 that rotates the input cam.

  Furthermore, it is preferable to provide an engagement holding mechanism 50 that allows the input handle 56 to freely perform an input operation while maintaining the engagement state between the engagement tooth base 38 of the gantry 14 and the input cam 46.

  Further, the fixing release handle 64 and the input handle 56 of the fixing portion 60 are preferably arranged so as to be operable at substantially the same height, and are tilted with one hand while looking at the front screen and fixed with the other hand. This makes it possible to adjust the angle intuitively and easily.

  Further, when the length S1 from the pivot 4 to the occlusion Y of the occlusal tooth base 38 fixed to the gantry 14 is set to be longer than the length S2 from the pivot 52 of the input cam 46 to the occlusion Y. Well, it is possible to set the fine adjustment angle while performing an intuitive input operation.

  In addition, it is advantageous to provide an auxiliary base 32 that is supported by the support portion 12 and is movably disposed on the outer periphery of the gantry 14.

  The gantry 14 may be provided so as to move up and down and move around the vertical axis via the support portion 12.

  According to the angle adjustment stand device of the present invention, it is an angle adjustment stand device such as a projector, a support portion, a stand that is supported by the support portion and arranged at a required height position, and on which the projector or the like is placed on the upper surface side, An angle setting mechanism that allows the cradle to swing at least around the horizontal axis while fixing it at an arbitrary inclination angle. The angle setting mechanism has one side connected to the gantry and the other side connected to the input unit. Since the structure includes the engaged biting rotation part and the fixed part, the simple structure is low cost, and the angle adjustment can be easily performed in a short time as well as a small size.

  In addition, one side of the bite rotation part is directly connected to the gantry, and the bite is adjusted with a small number of parts by adopting a configuration in which the gantry is tilted and adjusted directly by an input operation from the input unit by one bite rotation part. In addition to simplifying the structure of the rotating part and contributing to low costs, it is easy to operate and allows intuitive operations while looking at a screen with high accuracy.

  In addition, an occlusal tooth base having an occlusal tooth that forms one side of the occlusal rotation part is protruded and fixed at the lower part of the gantry, so that the gantry can be directly input to the occlusal rotation part. A configuration for tilting can be specifically realized. It also contributes to simplification of the structure.

  In addition, the input unit includes an input cam that meshes with the meshing teeth of the biting tooth base and an input handle that rotates the input cam, so that the rotational input of the input handle is tilted as it is. Therefore, it is possible to intuitively tilt and adjust the angle of the gantry, that is, the projector mounted thereon, and to simplify the operation and maintain a good angle setting accuracy.

  In addition, an input operation from the input unit can be achieved by providing an engagement holding mechanism that allows the input handle to be freely input while maintaining the engagement state between the engagement table of the platform and the input cam. The gantry can be tilted and adjusted directly via

  In addition, by adopting a configuration in which the fixing release handle and the input handle of the fixing portion are arranged at opposite positions at substantially the same height so that they can be operated, intuitive operation while looking at the screen or the like can be performed with high accuracy. The

  In addition, the length from the pivot to the occlusal portion of the occlusal tooth base fixed to the gantry is set longer than the length from the pivot to the occlusal portion of the input cam. As a result, the angle of the gantry can be changed with a small amount of rotation by direct rotation input operation of the handle, and as a result, the angle can be finely adjusted with good accuracy.

  In addition, by adopting a configuration in which an auxiliary stand that is supported by the support portion and is movably arranged around the pedestal is provided, the entire peripheral space of the pedestal is effectively used, and the auxiliary pedestal is installed. Contributes to downsizing of the entire device. In addition, since the installation location of a computer or other device can be freely changed to an arbitrary position, usability is greatly improved.

  Further, by adopting a structure in which the gantry is provided so as to be vertically movable and movable about the vertical axis via the support portion, the projection height, direction, and the like of the light source can be freely set.

  Next, an embodiment of the angle adjusting table device of the present invention will be described with reference to the accompanying drawings. The angle adjusting table apparatus of the present invention stably mounts a projector or the like that is connected to an OHP projector or a computer and optically enlarges a liquid crystal for displaying an image, a CRT display image, etc., and projects it onto a screen such as the front. In addition, the angle adjustment base means for freely adjusting the angle for correctly displaying the light from the light source on the screen. In particular, in this embodiment, the angle is finely adjusted with a simple structure and practically usable. The main feature is that it is a small angle adjustment stand that can be set.

  FIG. 1 to FIG. 5 show an embodiment of an angle adjustment table device 10 according to the present invention. In FIG. 1, the angle adjustment table device 10 is supported by a support unit 12 and a support unit 12 and is, for example, 80 cm to 90 cm. It includes a gantry 14 disposed at a height suitable for work on a person's sitting desk, and a gantry angle setting mechanism 16.

  The support portion 12 is a support means for horizontally supporting the gantry 14 at a required height position. In the present embodiment, the support portion 12 includes a support cylinder 20 erected vertically on the base 18 and a support cylinder 20. And a movable cylinder 22 that is inserted into the cylinder 20 so as to move up and down and rotate around the vertical axis. The base 18 is provided, for example, by welding and joining metals in an H shape. Then, a knob handle 24 for fixing the movable cylinder is attached to the upper end portion of the support cylinder 20 that is erected and fixed to the support cylinder 20 so that the rotation of the movable cylinder around its axis can be restricted. The movable cylinder 22 is supported by the support cylinder 20 so as to move up and down and rotate around the vertical axis. It is a means and may be a rod instead of a hollow. In the embodiment, the spring 21 is inserted into the support cylinder 20 so that the movable cylinder 22 and thus the expensive projector on the gantry disposed above the movable cylinder 22 can be prevented from being damaged or damaged by the drop impact. Also, the vertical movement operation is smooth. A caster 19 with a braking mechanism is attached to the lower surface side of the base 18 so that the entire apparatus can move freely and can be brake-locked so as not to move at that position.

  In the present embodiment, a rotating cylinder 28 is fitted to a receiving seat 26 fixed to the outer periphery of the intermediate position of the supporting cylinder 20 so as to be freely rotatable about the vertical axis, and one end of an arm 30 is fitted to the rotating cylinder 28. Are connected, and an auxiliary base 32 is attached to the upper end side of the arm 30. The auxiliary table 32 is an auxiliary table that is supported by the support portion 12 and is movably arranged around the outer periphery of the frame. In particular, in this embodiment, the frame 14 is moved via the arm 30 by the rotation of the rotary cylinder 28. Therefore, in the case of a projector having a display connected to the computer J for display, the projector is placed on the mount 14 and the computer is connected to the auxiliary stand. 32 can be mounted and used as necessary. In this case, since the auxiliary base 32 can be freely arranged at a position that rotates around the gantry 14 in a plan view, the entire space of the projector can be effectively used to effectively implement the device according to the user's standing or sitting posture. Can be placed and used.

  1 to 4, the bottom wall of a hollow case 34 whose upper surface is opened is connected and fixed to the upper end of the movable cylinder 22. The hollow case 34 is housed in an occlusal rotating portion 35, and is supported horizontally above the hollow case, and the gantry 14 is supported so as to swing around the horizontal axis. Yes. In the present embodiment, a hollow case 34 is formed by a case body having a vertically long and thick plate-like hollow portion, and the hollow case 34 has an opening portion on the upper surface cut obliquely from a lateral width intermediate position when viewed from the front. A portion 36a and a horizontal portion 36b are formed.

  In the figure, an occlusal tooth base 38 hangs downward and protrudes and is fixed to the lower part of the gantry 14. The occlusal tooth base 38 has occlusal teeth 40 that are directly connected to the base 14 and form one side of the occlusal rotation part 35, and the horizontal axis of the base 14 is rotated by the occlusal rotation with the input cam. In the embodiment, as shown in FIGS. 2, 3, and 6, it is formed of a long plate that is fixed at a substantially central position on the lower surface of the gantry 14. Furthermore, in this embodiment, the biting tooth base 38 is configured as a hypotenuse by obliquely cutting off the upper side of the long plate shape, and therefore, the plate thickness surface of the hypotenuse part and the bottom wall of the gantry 14 are separated from each other. Bonded and fixed. In FIG. 3, the occlusal tooth base 38 is disposed so as to be accommodated in the hollow case 34, and in this state, an intermediate position closer to the upper portion is placed on the swing shaft 41 provided in the width direction of the hollow case 34, that is, in the lateral direction. It is penetrated and provided so as to be swingable around its axis. As a result, when the lower side of the occlusal tooth base 38 is engaged and rotated by an input operation, the gantry 14 fixedly supported on the upper side of the rocking shaft of the occlusal tooth base 38 also swings around the axis. In FIG. 3, an occlusal tooth 40 in which several continuous peaks and valleys are alternately formed is formed on the lower side of the oval occlusal tooth base 38. In the embodiment, these peaks and valleys are all formed smoothly so that arcs are inverted and continuous. In this way, gear-like crests and troughs are continuously formed only on one side of the long plate, and it is not necessary to form teeth on the entire circumference like gears, so only the occlusion with the input cam can be ensured. As a result, all of the peaks and valleys can be processed in an arc-inverted continuous manner and easily. In addition, since the teeth are smoothly meshed and rotated by the occlusion of the circularly inverted teeth, the angle fine adjustment setting based on the input can be easily performed. In the embodiment, only a few crests and troughs of the bite teeth 40 are formed with respect to a central angle of about 120 degrees on one side of the long plate, and the bite does not rotate when the angle exceeds 120 degrees. . As shown in FIG. 6B, when the biting tooth base 38 is positioned in the vertical direction, for example, the gantry 14 is arranged at an inclination angle of about 15 degrees from the horizontal, and the biting rotation in the biting rotation unit 35 is performed. The base 14 swings as shown in FIGS. 6-1 and 6-3 by the movement.

  4, in the hollow case 34, auxiliary plates 42 and 44 having a U-shaped cross-section have an occlusal tooth base 38 in the middle so that an occlusal tooth base 38 made of a long plate is sandwiched between the respective back sides. Are arranged back to back. One auxiliary plate 42 is arranged so as to be elastically pressed against an input cam, which will be described later, and the other auxiliary plate 44 is arranged in the hollow case in a state where a certain amount of rattling occurs.

  An input cam 46 is arranged in the hollow case 34 so as to mesh with the meshing teeth 40 of the meshing tooth base 38. The input cam 46 is a part that forms a part of the input unit 47 that adjusts the angle by swinging the gantry 14 around the horizontal axis via the meshing tooth base by the rotational input operation. The cam 46 is composed of a cam body having an input occlusion tooth 48 that engages with the occlusion tooth 40 of the occlusal tooth base 38 only in a part of the circular cam body. Thus, since it comprises the circular cam body which provided the input occlusion tooth | gear 48 corresponding to the occlusion tooth | gear 40 of the occlusal tooth base 38 only in part, the manufacture is easy. The input cam 46 is sandwiched between the above-described U-shaped auxiliary plates 42 and 44, and always holds the biting state with the biting teeth 40 of the biting tooth base on the gantry side. That is, the two auxiliary plates 42 and 44 arranged back to back so as to sandwich the biting tooth base 38 and the input cam 46 in the middle in the hollow case 34 are the main parts of the biting holding mechanism 50. Is configured. Further, in FIG. 4, an input shaft 52 is rotatably provided by penetrating the outer wall of the hollow case 34 and the auxiliary plate 42 and fixing its protruding end to the center of the input cam 46. The outer side of the hollow case 34 of the input shaft 52 is provided with a boss portion 54 having a diameter larger than that of the input shaft 52 and a knob handle 56 fixed to the outer surface side thereof. The input cam 46 fixed to the same also rotates in the same direction, and the gantry 14 is tilted via the occlusal tooth base 38 engaged therewith. The input unit 47 includes an input cam 46 and a handle 56. As shown in FIG. 4, an urging spring 58 made up of a push spring is interposed in the input shaft 52 portion at an intermediate position between the auxiliary plate 42 and the inner wall surface of the hollow case 34, and thereby, the auxiliary plate 42 is always provided. The input cam 46 is pressed against the outer surface side of the. Therefore, the meshing state of the meshing tooth base 38 and the input cam 46 is sandwiched between the auxiliary plates 42 and 44 so that the meshing state is always maintained, and at the same time, the input is pressed against one of the auxiliary plates 42 and urged. The shaft 52 can be rotated by the handle 56 to smoothly tilt the gantry. In this way, the biting tooth 40 on one side of the biting rotation part is directly connected to the gantry 14 via the biting tooth base 38, and is directly input by an input operation from the input unit 47 by the configuration of one biting rotation part 35. The tilting of the gantry 14 is adjusted.

  In FIG. 3, the rocking shaft 41 of the occlusal tooth base 38 fixed to the gantry 14, that is, from the pivot to the occlusion portion Y (for example, the midpoint portion of the length from the peak of the peak to the lowest point of the valley). The length S1 is set to be longer (for example, twice or more) than the length S2 from the pivot 52 of the input cam 46 to the occlusal portion. That is, they are engaged with each other (the rotation radius of the biting tooth base 38> the rotation radius of the input cam), whereby the swing shaft 41 of the biting tooth base 38 is compared with the input rotation amount of the input cam 46. Therefore, the angle of the gantry 14 can be adjusted accurately even with rough rotation input. Further, when these components are specifically configured in such a relationship (the rotation radius of the biting tooth base 38> the rotation radius of the input cam), the biting tooth base 38 may be constituted by a long plate body, Furthermore, it becomes easier to perform direct connection to the gantry 14, and further, they can be accommodated in a hollow thick plate-like case 34 so that those mechanism parts cannot be seen from the outside. The hollow case 34 for supporting or accommodating can also be reduced in size and can maintain a good appearance design.

  4 and 5, the angle setting mechanism 16 includes an engagement rotation unit 35 and a fixing unit 60. The fixing portion 60 is a fixing operation means for fixing the biting tooth base 38 to the support portion side at an arbitrary position obtained by swinging in a swinging manner via the biting rotation portion 35 by an input operation of the input portion 47. In this embodiment, the hollow case 34 is provided on the surface on the opposite other end side where the input portion is provided, and is input with one hand to tilt the gantry, and is fixed with the other hand. I am doing so. In the embodiment, the fixing portion 60 includes a nut member 62 attached to a hole provided in the side wall of the hollow case 34, and a fixing release handle 64 that is screwed into and penetrates the screw hole of the nut member. . Similarly to the knob handle for input, the fixing release handle 64 is configured by integrally connecting a boss portion 66, a handle portion 68, and a fixing release shaft 70. The handle portion 68 is screwed and rotated to rotate the fixing release shaft 70. Is pushed against the inner wall surface of the U-shaped auxiliary plate 44, and the gantry 14 is fixed at a predetermined tilting position by a strong surface contact friction force between the outer wall surface of the U-shaped auxiliary plate 44 and the meshing tooth base 38. Therefore, for example, it is possible to smoothly and reliably perform the operation of setting the tilt angle of the light source while tilting it while looking at the front screen and fixing the light source at that position.

  The gantry 14 is a pedestal means having a flat surface or a planar portion on the upper surface on which an expensive projection device such as a projector can be stably placed. A U-shaped frame 15 protrudes upward.

  Next, the operation of the angle adjustment table device 10 of this embodiment will be described. The entire device 10 can be easily moved via the casters 19. The height of the gantry 14 is determined by fixing the knob handle 24 by adjusting the height at an appropriate projecting position. Before the projector is placed, the fixing release handle 64 is once operated so that the platen surface of the gantry is horizontally arranged as shown in FIG. In this state, when an object such as the projector P is placed on the gantry 14 and the input handle 56 is rotated in a state where the fixing release handle 64 is loosened, the biting rotation unit 35 corresponds to the rotation amount. The occlusal tooth base 38 directly rotates, and the gantry 14 is adjusted to an arbitrary angular position in the range from the horizontal to the 30-degree backward tilted position as shown in FIG. 6-2 or FIG. Then, the fixing release handle 64 is rotated and fixed in the tightening direction. At this time, since the meshing tooth base 38 rotates and the gantry 14 tilts with a rotation amount smaller than the rotation amount of the input knob handle 56, the angle can be finely adjusted. Further, if the rotation range of the biting tooth base 38 and the input cam 6 is determined to be 120 degrees, for example, if one rotation end is set to the horizontal position of the gantry 4, an expensive projector or the like by tilting forward There is no risk of falling, and it can be used safely.

  Although the present embodiment has been described above, the present invention is not limited to the above-described embodiment, and various modifications, improvements, and combinations can be made without departing from the matters described in the claims. It will be obvious to those skilled in the art. For example, in the above embodiment, the support portion, the biting rotation portion, the gantry, etc. are made of metal. However, the portion or the whole is made of a hard synthetic resin, light metal or other material as long as there is no problem in strength. Also good.

  The angle adjusting table device of the present invention is an optical device for optically enlarging an image of a small display device made of an OHP device, a CRT, a liquid crystal panel, etc., and projecting it on a screen to display it on a large screen. It can be used suitably as an angle adjustment stand device. Further, the optical projection device may be of a type that is projected and displayed on the screen from the front or a device that transmits light from the rear side of the screen for display. In addition, the device according to the present invention is not limited to an optical projection device, and can be applied as an angle adjustment table for an article that has a size that can be easily mounted on a gantry and that can be placed on a gantry, and an angle adjustment table for a heavy object.

It is front explanatory drawing which shows one Embodiment of the angle adjustment stand apparatus by this invention. FIG. 2 is an enlarged partial cross-sectional explanatory view of an angle adjustment table device according to the embodiment of FIG. 1. It is a partially notched principal part enlarged front explanatory drawing of the angle adjustment stand apparatus of FIG. FIG. 4 is a sectional view taken along line AA in FIG. 3. It is the BB sectional view taken on the line of FIG. It is principal part operation explanatory drawing of the angle adjustment stand apparatus of FIG. It is principal part operation explanatory drawing of the angle adjustment stand apparatus of FIG. It is principal part operation explanatory drawing of the angle adjustment stand apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Angle adjustment stand apparatus 14 Base 16 Angle setting mechanism 34 Hollow case 35 Biting rotation part
38 Occlusal tooth base 40 Occlusal teeth 41 Oscillating shaft 46 Input cam 47 Input portion 48 Input occlusal teeth 50 Occlusal holding mechanism 52 Input shaft 56 Knob handle 60 Fixing portion 64 Unlocking handle Y Occlusal portion

Claims (9)

An angle adjustment stand device such as a projector,
A support part;
A pedestal that is supported by the support unit and is arranged at a required height position and on which the projector or the like is placed on the upper surface side;
An angle setting mechanism for fixing the gantry at an arbitrary inclination angle while allowing the gantry to swing at least around the horizontal axis;
The angle adjusting mechanism according to claim 1, wherein the angle setting mechanism includes an engagement rotating unit having one side connected to the gantry and the other side connected to the input unit, and a fixing unit. An angle adjusting base device characterized in that one side of the biting rotation unit is directly connected to the frame, and the rotation of the frame is directly adjusted by one biting rotation unit through an input operation from the input unit. 3. The angle adjusting table apparatus according to claim 1, wherein an occlusal tooth base having an occlusal tooth forming one side of the occlusal rotating part is protruded and fixed at a lower portion of the frame. The angle adjustment according to any one of claims 1 to 3, wherein the input unit includes an input cam that meshes with the biting teeth of the biting base and an input handle that rotates the input cam. Stand device. 5. An angle adjustment stand device according to claim 4, further comprising an engagement holding mechanism that allows an input handle to freely perform an input operation while maintaining the engagement state between the engagement tooth platform of the gantry and the input cam. . 6. The angle adjusting table apparatus according to claim 4, wherein the fixing release handle and the input handle of the fixing portion are disposed at opposition positions substantially at the same height so as to be operable. The length from the pivot axis to the occlusal portion of the occlusal tooth base fixed to the gantry is set to be longer than the length from the pivot axis to the occlusal portion of the input cam. The angle adjustment stand device described in 1. 8. The angle adjustment base device according to claim 1, further comprising an auxiliary base supported by the support portion and disposed so as to be movable around an outer periphery of the gantry. 9. The angle adjustment base device according to claim 1, wherein the gantry is provided so as to be vertically movable and movable about the vertical axis via the support portion.

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