JP7319100B2 - Portable stand for projector - Google Patents

Description

The present invention relates to a portable stand for projectors, and is particularly suitable for portable stands suitable for use with short-focus projectors.

Projectors often project images onto a screen, and in this case, the focal length is often several meters or longer. A short-focus type that can be placed near a wall or a partition wall to project an image onto the wall has been developed and is becoming popular.

The advantage of this short focus projector is that it can be used anywhere, but since it needs to be placed in a predetermined posture, it is preferable to have a dedicated portable projector stand. Regarding this point, Japanese Patent Application Laid-Open No. 2002-200000 discloses a portable stand that is formed by attaching a lifting platform on which a projector is fixed to a stand body provided with casters so that the height can be adjusted.

On the other hand, in Patent Document 2, as a general portable stand for projectors, a T-shaped base is connected to a stand body equipped with casters so that it can be swiveled, and the stand body is provided with a table for placing a notebook computer. is disclosed. In Patent Document 2, the posture of the stand can be changed from a horizontal state to an inclined state, and in the inclined state, light is projected obliquely upward from the lens of the projector. A stopper for preventing the projector from slipping down when the pedestal is tilted is provided at the end of the pedestal on the side opposite to the irradiation direction.

JP 2018-194658 A JP 2005-121918 A

As described above, the short-focus projector can easily project an image on the top of a table or the wall of a building as a screen by changing its posture (changing the direction of projection). However, since the posture of the projector is fixed and only the top of the table can be used as the projection surface, it can be said that the projector is functionally insufficient.

On the other hand, in Patent Document 2, since the pedestal can be swiveled, it is expected that projection onto a table and projection onto a wall surface can be achieved. While it is designed to allow projection onto a table and projection onto a wall surface, Patent Document 2 only allows the pedestal to be held in a tilted posture, making it possible to project onto a wall surface using a short-focus projector. It can be said that it is difficult to

The present invention was conceived in response to such a situation, and aims to provide a more improved portable projector stand.

The portable stand for projector of the present invention is
"It has a movable stand main body and a projector mounting base attached to the upper end of the stand main body so as to be able to rotate about a horizontal axis within a range of approximately 90° ,
The projector mounting table is formed in an L shape by a first portion and a second portion having postures substantially perpendicular to each other when viewed from the rotation axis direction of the projector mounting table. the end opposite to the portion is connected to the upper end of the stand body,
When the first part is in a horizontal posture, the projector can project an image onto a horizontal projection plane, and when the first part is in a vertical posture, the projector can project an image onto a vertical projection plane."
This is the basic configuration.

And in the invention of claim 1, in the above basic configuration,
"The stand main body has a leg that rests stably on the floor, and a pillar that is erected at a position that is offset from the center in plan view of the leg,
The projector mounting table has a state in which the second portion protrudes upward from one end of the first portion in a horizontal posture, and a state in which the second portion horizontally protrudes from a lower end of the first portion in a vertical posture. The other end of the first portion is connected to the upper end of the column so as to be rotatable, and the projector mounting table is arranged so as to overlap the center of the leg in plan view in any state. has been
In addition, since the projector is attached to the projector mounting table with the projection lens moved toward the post, the image of the projector is projected onto the vertical projection surface when the first portion is in the vertical posture. Then, when the first portion assumes a horizontal posture, the image of the projector is projected onto the horizontal projection surface. ”
It has the characteristics of

The invention of claim 2 , in the above basic configuration ,
"The stand main body consists of legs that are composed of an upper frame in a horizontal position and that rests stably on the floor, and ends of the upper frame that stand off the center of the legs in a plan view. having a stanchion and
A first portion of the projector mounting table is connected to an upper end portion of the column at an end remote from the second portion so as to rotate between a horizontal position and a vertical position in a space above the upper frame. ,
Regardless of whether the first portion is in the horizontal or vertical posture, the projector mounting table is arranged so as to overlap the center of the leg portion in a plan view, and when the first portion is in the vertical posture, the projector mounting base is placed so as to overlap the center of the leg portion. The mounting table is housed in a space above the upper frame and laterally of the support,
In addition, since the projector is attached to the projector mounting table with the projection lens moved toward the post, the image of the projector is projected onto the vertical projection surface when the first portion is in the vertical posture. Then, when the first portion assumes a horizontal posture, the image of the projector is projected onto the horizontal projection surface. ”
It is configured.

The invention of claim 3 , in the above basic configuration,
"The stand body has a leg that rests stably on the floor, and a support that stands upright on the leg, and the support is offset from the center of the leg in a plan view. While placed
The projector mounting table is arranged so as to overlap with the center of the leg portion in a plan view in both a state in which the first portion is in a horizontal posture and a state in which the first portion is in a vertical posture,
An end portion of the first portion of the projector mounting table, which is remote from the second portion, is connected to an upper end portion of the support, and the projector is mounted on the projector mounting table with a projection lens placed near the support. It is ready to be installed,
Further, with the upper surface of the table as the horizontal projection plane, the legs of the stand body are set to be lower than the top plate of the table, and the pillars are set so as to come into contact with the end face of the top plate. ing"
It is configured.

The invention of claim 4 , in the above basic configuration,
"The stand body has a leg that rests stably on the floor, and a support that stands upright on the leg, and the support is offset from the center of the leg in a plan view. While placed
The projector mounting table is arranged so as to overlap with the center of the leg portion in a plan view in both a state in which the first portion is in a horizontal posture and a state in which the first portion is in a vertical posture,
An end portion of the first portion of the projector mounting table, which is remote from the second portion, is connected to an upper end portion of the support, and the projector is mounted on the projector mounting table with a projection lens placed near the support. It is ready to be installed,
Further, in a state in which the wall surface is used as the vertical projection surface and the projection is projected onto the wall surface by the projector, the post is arranged closer to the wall surface than the center of the leg portion, and The projector and the wall surface are kept at a predetermined distance by the legs coming into contact with the wall surface."
It is configured.

According to the invention of claim 5, in any one of claims 1 to 4,
"The projector mounting table is provided with a grip portion with which a hand can be put when rotating the projector mounting table."
It is configured.

In the present invention, the projector mounting table can be rotated within a range of approximately 90 degrees, but it is also possible to configure it so that the posture can be changed steplessly or stepwise. Further, the height of the projector mounting table can be adjusted by constructing the struts in a telescopic manner. Wall surfaces include not only walls that constitute a building, but also movable or fixed partitions, screens, and the like.

In the invention of the present application, since the projector mounting table rotates within a range of approximately 90°, even if it is a short-focus projector, the projector can be projected on a horizontal projection surface such as a table surface and a vertical projection surface such as a wall surface. It can be changed to a posture that projects to Therefore, it is user-friendly.

In addition, since the projector mounting table is L-shaped, the projector can be stably supported both in the state of horizontal projection and in the state of vertical projection. Therefore, the projector can change the projection direction while maintaining its stability.

If the stand main body is composed of legs and supports, the legs ensure stability and the supports provide a neat appearance.

The post is arranged at a position shifted from the center of the leg, and the end of the first portion of the projector mounting table is connected to the support. It is possible to bring the center of gravity of the projector closer to the center of the legs in both the first section horizontal orientation and the second section horizontal orientation (i.e., projecting onto a table or projecting onto a wall). and ensure high stability.

In addition, since the projection lens of the projector is located on the support column side, the projection lens can be brought as close to the table or wall surface as possible whether the projection is made on the table or the wall surface. Therefore, when using a short-focus projector, the projection lens can be brought as close to the projection surface as possible to achieve a clear image. That is, the function of the short-focus projector can be reliably exhibited.

When projecting an image onto a table with a projector, the stand can be placed anywhere as long as it is in focus. It is user-friendly because the chairs can be arranged in advance so that people can easily see the images.

In this respect, when the third aspect of the invention is adopted, the post serves as a stopper to regulate the position of the stand, so that the projection area can be stabilized and preparation can be facilitated. In addition, since the post is offset from the center of the leg, it is possible to prevent or suppress the leg from entering the bottom of the top plate. Therefore, the legs of the user of the table are prevented from coming into contact with the legs of the stand, and the table can be used comfortably.

When the invention of claim 4 is adopted, the distance between the projector and the wall surface can be made constant, so a clear image can be projected onto the wall surface in a predetermined area while maintaining an appropriate focus. Since it is closer, the support can be made as inconspicuous as possible to make the image easier to see. In other words, when an image is projected onto a table, the person's line of sight is directed downward, so even if the support is in contact with the tabletop, the support will not come into view when the person is looking at the image. In the case of the projection of , since the person raises his or her head and faces the wall, the support will be within the person's field of vision.

In the configuration disclosed in Japanese Patent Application Laid-Open No. 2002-200000, when the pedestal is rotated while the projector is fixed, the knob is turned to release or lock the knob while holding the posture by placing a hand on the lower surface of the pedestal. However, since the projector has a certain amount of weight, it may be difficult to stably hold the pedestal simply by placing a hand on the underside of the pedestal.

On the other hand, if the configuration of claim 5 of the present application is adopted, the projector mounting table can be rotated while being stably held by firmly gripping the grip portion, so that the posture of the projector mounting table can be changed safely and easily. In particular, it is particularly preferable to use a connecting part with a ratchet mechanism, because it is not necessary to perform locking and unlocking operations with a handle or the like.

It is a figure which shows the table surface projection state of embodiment, (A) is a side view, (B) is a perspective view. It is a figure which shows a table surface projection state, (A) is the perspective view seen from back, (B) is an isolation|separation perspective view, (C) is a top view. It is a figure which shows a wall surface projection state, (A) is a perspective view, (B) is an isolation|separation perspective view, (C) is the perspective view which looked at one part from back. It is a figure which shows a wall surface projection state, (A) is a side view, (B) is a top view. (A) and (B) are separated perspective views, and (C) is a partial perspective view seen from behind in a table surface projection state. (A) and (B) are separated perspective views in a wall projection state. (A) is an isolated perspective view seen from above, and (B) is an isolated perspective view seen from below. (A) is an isolated perspective view seen from above, and (B) is an isolated perspective view seen from below. (A) is an isolated side view, (B) is an isolated perspective view seen from behind, and (C) is a perspective view seen from behind. A modified example is shown.

(1).Outline/mode of use Next, embodiments of the present invention will be described with reference to the drawings. First, with reference to FIGS. 1 to 4, an outline and a mode of use will be described. For example, as shown in FIG. 1, the projector portable stand consists of a stand main body 1 and a projector mounting base 2 connected to the upper end thereof so as to be rotatable about a horizontal axis.

A stand body 1 is composed of a leg portion 6 formed by connecting four legs 3 and 4 with an upper frame 5 that is U-shaped (U-shaped in plan view), and a hollow rectangular post 7 erected on the upper frame 5. A caster 8 is attached to the lower end of each leg 3,4. In the following description, front, back, left, and right terms are used to specify directions, and the opening direction of the upper frame 5 is defined as rear, and the direction opposite to the opening direction is defined as front. Therefore, the foot with reference numeral 3 is called the front foot, and the foot with reference numeral 4 is called the rear foot. Just to make sure, the directions are clearly shown in FIGS.

The strut 7 is fixed to the front end of the upper frame 5 by welding. Therefore, the post 7 is greatly displaced (offset) forward from the center O of the leg 6 (the intersection of the diagonal line connecting the lower ends of the diagonally positioned legs 3 and 4) in plan view.

The legs 3 and 4 constituting the leg portion 6 are inclined at a slight angle so that the distance between them widens toward the lower end, and the upper frame 5 is integrally connected to the upper end. The left and right hind legs 4 are connected at their lower ends by stays 9 . The stay 9 plays a role of reinforcement, but also has a role of a bar for holding down the stand main body 1 with a foot so that the stand main body 1 does not rise when the projector mounting base 2 is rotated.

In this embodiment, the projector 12 can selectively project an image onto the upper surface of the top plate 11 of the table 10 and the wall surface 15 of a building, a partition, or the like. Therefore, the upper surface of the table 10 is a horizontal projection plane, and the wall surface 15 is a vertical projection plane. The leg part 6 has a height lower than the lower surface of the top plate 11 constituting the table 10, and the upper end of the column 7 has a height higher than the top plate 11 to some extent. Therefore, the legs 6 can be inserted into the space below the top plate 11 and the front surface of the support 7 can be brought into contact with the end surface of the top plate 11 .

For example, as shown in FIG. 1B, the projector 12 has a substantially rectangular parallelepiped shape as a whole, and the irradiation surface 14 on which the lens 13 is provided is a horizontally long rectangle, and as shown in FIGS. By rotating the projector mounting table 2, the image can be projected onto the top plate 11 of the table 10 with the irradiation surface 14 facing sideways, and as shown in FIGS. can be changed to an upward posture in which the can be projected onto the wall surface 15.例文帳に追加

The projector mounting table 2 is formed in an L shape by a first portion 16 that assumes a horizontal orientation when the projector 12 is oriented horizontally and a second portion 17 that assumes a horizontal orientation when the projector 12 is oriented vertically. The projector 12 is fixed to the first portion 16 with screws (not shown) with the irradiation surface 14 facing away from the second portion 17 . The rear surface of the projector 12 opposite to the irradiation surface 14 is in contact with the second portion 17 . Therefore, even if the projector 12 is directed upward, a large amount of load is not concentrated on the fastening portion of the screw.

In addition, since the post 7 is deviated from the center O of the leg 6 in a plan view, the projector 12 is positioned at the center of the leg 6 in both the state of projecting the image onto the table 10 and the state of projecting the image onto the wall surface 15. O will pass through. Therefore, it is excellent in stability.

Since the projector 12 has a substantially rectangular parallelepiped shape, the first portion 16 and the second portion 17 are different in height dimension in the direction perpendicular to the connecting portion. That is, the height of the second portion 17 is smaller than the height of the first portion 16 .

The first portion 16 and the second portion 17 are composed of plate members 18 and 19 and frame members 20 and 21 arranged so as to surround the plate members 18 and 19, and the second portion 17 is connected to one end of the first portion 16. hand,
While the free end (the other end) of the first portion 16 is rotatably connected to the upper end of the support column 7 , the end of the frame member 21 forming the second portion 17 protrudes outside the projector 12 . It forms a grip portion 21a. In other words, there is a space between the grip portion 21a and the plate member 19 so that a person can insert his or her finger into the space, and the person can grip the grip portion 21a and rotate the projector mounting table 2. FIG.

In this case, since there is a certain amount of resistance to tilting of the projector mounting table 2, the portable projector stand may float when the projector mounting table 2 is rotated upward. When the stay 9 is provided as described above, by stepping on the stay 9 with a foot, it is possible to rotate it upward while preventing it from floating.

Frame members 20 and 21 are made of round pipes and welded to plate members 18 and 19 . It is also possible to configure the frame members 20 and 21 with round bars, square pipes, or the like. In addition, the frame members 20 and 21 do not necessarily have to be used, and the whole may be constructed with plate members 18 and 19. FIG. Conversely, it is also possible to construct the whole with the frame members 20 and 21 . Even when the whole is composed of the plate members 18 and 19, it is preferable to provide the second portion 17 with a grip portion that can be gripped by a person. Forming the grip portion 21a using the frame member 21 having a reinforcing function as in the embodiment has the advantage of simplifying the structure.

A lens 13 of the projector 12 is inclined with respect to a vertical line of the irradiation surface 14 . 1 and 2, an image can be projected onto the upper surface of the tabletop 11, while the irradiation surface 14 can be projected as indicated by the dotted lines in FIGS. In the upward posture, an image can be projected onto the wall surface 15 .

In a table surface projection state in which an image is projected from the projector 12 onto the table 10 , the projection area onto the table 10 can be made constant by bringing the support 7 into contact with the end surface of the top plate 11 . In addition, as shown in FIG. 4A, in the table surface projection state, the lower end of the forefoot 3 hits the wall surface 15, so that the distance between the lens 13 and the wall surface 15 is maintained at a predetermined size, and an area of a predetermined size is projected. can project a clear image on

(2) Rotating Mechanism Next, the connecting structure (rotating mechanism) of the projector mounting table 2 with respect to the column 7 will be described mainly with reference to FIG. 5 and subsequent drawings.

For example, as shown in FIGS. 5(B) and 7(A), the post 7 has a hollow rectangular cross-sectional shape that is elongated in the left-right direction. The fixing bracket 23 is fixed to the post 7 by three screws 24, while the end portion of the first portion 16 of the projector mounting table 2 away from the second portion 17 is provided with a screw in the direction opposite to the second portion 17. A pair of side plates 25 projecting outward are formed, and the tip portions of the side plates 25 are rotatably connected to the column 7 and the fixed bracket 23 by a pair of shaft support screws 27 . Accordingly, the projector mounting table 2 rotates around the axis of the shaft support screw 27 .

For example, as shown in FIG. 7B, the first portion 16 is formed with bent end plates 28 overlapping the end faces of the side plates 25, and a downward opening is provided in the space formed by the left and right side plates 25 and the end plates 28. One side plate 29a of the first intermediate bracket 29 is attached to one side plate 23a of the fixed bracket 23 together with one side plate 25 of the first portion 16 by a pivot screw 27. Concatenated. Therefore, the first intermediate bracket 29 rotates together with the projector mounting base 2 .

Furthermore, a second intermediate bracket 30 extending toward the opposite side of the second portion 17 is fixed to the outer surface of the other side plate 29b of the first intermediate bracket 29 with two screws 31. A rotating attitude holding unit 32 is connected to the rear end by a pivot screw 27 so as to be relatively rotatable. For example, as shown in FIG. 9, a notch portion 34 is formed in the upper portion of the fixed bracket 23 by cutting the upper portion of the other side plate 23b and the back portion connected thereto. is held in a non-rotatable manner by being fitted into the notch 34 .

Further, as shown in FIG. 8B, for example, a posture holding plate 35 that contacts the lower surface of the rotating posture holding unit 32 is fixed to the outer surface of the other side plate 23b of the fixed bracket 23 with three screws 36. there is Instead of fixing the posture holding plate 35 with screws 36, the other side plate 23b may be bent to form a positioning piece capable of contacting the lower surface of the rotating posture holding unit 32. FIG.

For example, as shown in FIG. 8, a U-shaped first lower cover 37 with an upward opening is fixed to the side plate 25 of the first portion 16 of the projector mounting table 2 with two front and rear push-type snap pins 38 . Furthermore, a second lower cover 39 overlapping the lower surface of the first lower cover 37 is rotatably connected to the outer surface of the upper portion of the support 7 by a left-right long pin. The second lower cover 39 is connected to a bearing portion 41 formed on the column 7 with a pin. A screw can also be used instead of the snap pin 38 .

For example, as shown in FIG. 6 and FIG. 3C, an upper cover 42 that covers the column 7 from above is fixed to the side plate 25 of the first portion 16 with screws 43 . As shown in FIGS. 3(C) and 5(C), in both the table surface projection state and the wall surface irradiation state, since the upper end of the column 7 and the fixed bracket 23 are covered from above, even if a person touches the Do not pinch your fingers.

For example, FIG. 9 shows the rotating posture holding unit 32. The rotating posture holding unit 32 has a rotary shaft to which the second intermediate bracket 30 is fixed, and the built-in ratchet mechanism allows the second intermediate bracket 30 to rotate. As the intermediate bracket 30 is rotated upward, it is not possible to rotate it back in the range of rotation up to 90°, and it is possible to maintain the posture by a predetermined angle. By doing so, the lock is released so that it can be rotated back.

In this embodiment, since the projector 12 uses only two postures, the table surface projection state and the wall illumination state, the second intermediate bracket 30 needs only two postures, the horizontal posture and the vertical posture. Therefore, the rotating posture holding unit 32 may be configured to hold the second intermediate bracket 30 only in two postures, the horizontal posture and the vertical posture.

In the present embodiment, the projector mounting table 2 is formed in an L shape by the first portion 16 and the second portion 17. Therefore, when the side plate 25 is provided on the first portion 16, the projector mounting table 2 as a whole becomes crank-shaped. It becomes a curved shape. Therefore, as can be understood from the comparison between FIG. 1A and FIG. 4A, the height of the lens 13 in the table surface projection state can be made higher than the height of the lens in the wall surface illumination state. can. Therefore, the required image projection area can be formed on the table surface while minimizing the height of the stand body 1 .

FIG. 10 shows a modification. In this modification, first, a cable holder 46 for winding cables such as a power cable is provided on the outer surface of the second plate 19 on the side where the projector 12 is not arranged. Since the outer surface of the second plate member 19 does not overlap the strut 7, even if the cable holder 46 is provided, there is no particular problem.

Furthermore, in this modified example, the second lower cover 39 is rotatably suspended from the base end portion of the first lower cover 37 . As a suspending means, an engagement hole 37a extending in the left-right direction is formed in the base end of the first lower cover 37, while a hook-shaped engagement piece (curl portion) is formed in the upper end of the second lower cover 39. 39a is formed and the engaging piece 39a is fitted into the engaging hole 37a.

Therefore, a connecting member such as a pin is unnecessary, and the structure is simple. Incidentally, as shown in FIG. 2D, the engaging piece 39a is fitted into the engaging hole 37a from below, and the second lower cover 39 is rotated approximately 180 degrees. Therefore, there is no problem that the second lower cover 39 comes off during use. That is, when the first lower cover 37 is fixed to the side plate 25 of the first portion 16, the second lower cover 39 can be rotated only by approximately 90 degrees, so that it cannot be detached.

Although the embodiments of the present invention have been described above, the present invention can be embodied in various other ways. For example, the stand main body is not limited to a frame structure using a pipe material as in the illustrated example, but can be made of sheet metal or made of plastic. A floor or a simple plate can be used as the horizontal projection surface.

Lock release means such as a push button may be provided as the connection means for the projector mounting table so that the projector can be selectively held in two postures, the table surface projection state and the wall surface irradiation state. A non-short focus projector can also be used.

The present invention can be embodied in a portable stand for a projector. Therefore, it can be used industrially.

REFERENCE SIGNS LIST 1 stand body 2 projector mounting table 3, 4 legs 5 upper frame 6 legs 7 post 9 stay 10 table 11 top plate constituting horizontal projection surface 12 projector 13 lens 14 irradiation surface 15 wall surface (vertical projection surface)
REFERENCE SIGNS LIST 16 first portion of projector mounting table 17 second portion of projector mounting table 20, 21 frame member 21a grip portion 23 fixed bracket 29 first intermediate bracket 30 second intermediate bracket 32 rotating attitude holding unit

Claims (5)

a movable stand body; and a projector mounting base attached to the upper end of the stand body so as to be rotatable about a horizontal axis within a range of approximately 90° ,
The projector mounting table is formed in an L shape by a first portion and a second portion having postures substantially perpendicular to each other when viewed from the rotation axis direction of the projector mounting table. the end opposite to the portion is connected to the upper end of the stand body,
For a projector capable of projecting an image onto a horizontal projection surface when the first portion is in a horizontal orientation , and capable of projecting an image onto a vertical projection surface when the first portion is in a vertical orientation. A portable stand,
The stand main body has a leg that rests stably on the floor surface, and a support that is erected at a position offset from the center of the leg in a plan view,
The projector mounting table has a state in which the second portion protrudes upward from one end of the first portion in a horizontal posture, and a state in which the second portion horizontally protrudes from a lower end of the first portion in a vertical posture. The other end of the first portion is connected to the upper end of the column so as to be rotatable, and the projector mounting table is arranged so as to overlap the center of the leg in plan view in any state. has been
In addition, since the projector is attached to the projector mounting table with the projection lens moved toward the post, the image of the projector is projected onto the vertical projection surface when the first portion is in the vertical posture. an image of the projector is projected onto the horizontal projection plane when the first portion assumes a horizontal posture;
Portable stand for projector. a movable stand body; and a projector mounting base attached to the upper end of the stand body so as to be rotatable about a horizontal axis within a range of approximately 90°,
The projector mounting table is formed in an L shape by a first portion and a second portion having postures substantially perpendicular to each other when viewed from the rotation axis direction of the projector mounting table. the end opposite to the portion is connected to the upper end of the stand body,
The projector can project an image onto a horizontal projection surface when the first portion is in a horizontal orientation, and the projector can project an image onto a vertical projection surface when the first portion is in a vertical orientation. A portable stand,
The main body of the stand has legs that are composed of an upper frame in a horizontal posture and that rests stably on the floor, and an end of the upper frame that is offset from the center of the legs in a plan view. a strut,
A first portion of the projector mounting table is connected to an upper end portion of the column at an end remote from the second portion so as to rotate between a horizontal position and a vertical position in a space above the upper frame. ,
Regardless of whether the first portion is in the horizontal or vertical orientation, the projector mounting base is arranged so as to overlap the center of the leg portion in plan view, and when the first portion is in the vertical orientation, the projector The mounting table is housed in a space above the upper frame and laterally of the support,
In addition, since the projector is attached to the projector mounting base with the projection lens moved toward the post, the image of the projector is projected onto the vertical projection surface when the first portion is in the vertical posture. an image of the projector is projected onto the horizontal projection plane when the first portion assumes a horizontal posture;
Portable stand for projector . a movable stand body; and a projector mounting base attached to the upper end of the stand body so as to be rotatable about a horizontal axis within a range of approximately 90°,
The projector mounting table is formed in an L shape by a first portion and a second portion having postures substantially perpendicular to each other when viewed from the rotation axis direction of the projector mounting table. the end opposite to the portion is connected to the upper end of the stand body,
The projector can project an image onto a horizontal projection surface when the first portion is in a horizontal orientation, and the projector can project an image onto a vertical projection surface when the first portion is in a vertical orientation. A portable stand,
The stand main body has a leg that rests stably on the floor, and a support that is erected on the leg. While
The projector mounting table is arranged so as to overlap with the center of the leg portion in a plan view in both a state in which the first portion is in a horizontal posture and a state in which the first portion is in a vertical posture,
An end portion of the first portion of the projector mounting table, which is remote from the second portion, is connected to an upper end portion of the support, and the projector is mounted on the projector mounting table with a projection lens placed near the support. It is ready to be installed,
Further, with the upper surface of the table as the horizontal projection plane, the legs of the stand body are set to be lower than the top plate of the table, and the pillars are set so as to come into contact with the end surface of the top plate. ing,
Portable stand for projector . a movable stand body; and a projector mounting base attached to the upper end of the stand body so as to be rotatable about a horizontal axis within a range of approximately 90°,
The projector mounting table is formed in an L shape by a first portion and a second portion having postures substantially perpendicular to each other when viewed from the rotation axis direction of the projector mounting table. the end opposite to the portion is connected to the upper end of the stand body,
The projector can project an image onto a horizontal projection surface when the first portion is in a horizontal orientation, and the projector can project an image onto a vertical projection surface when the first portion is in a vertical orientation. A portable stand,
The stand main body has a leg that rests stably on the floor, and a support that is erected on the leg. While
The projector mounting table is arranged so as to overlap with the center of the leg portion in a plan view in both a state in which the first portion is in a horizontal posture and a state in which the first portion is in a vertical posture,
An end portion of the first portion of the projector mounting table, which is remote from the second portion, is connected to an upper end portion of the support, and the projector is mounted on the projector mounting table with a projection lens placed near the support. It is ready to be installed,
Further, in a state in which the wall surface is used as the vertical projection surface and the projection is projected onto the wall surface by the projector, the post is arranged closer to the wall surface than the center of the leg portion, and The projector and the wall surface are held at a predetermined distance by the legs hitting the wall surface.
Portable stand for projector . The projector mounting base is provided with a grip portion with which a hand can be put when rotating the projector mounting base,
A portable stand for a projector according to any one of claims 1 to 4.

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