JP2007108548A - Projector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a projector capable of improving the workability efficiency at adjusting of the tilt of the projector main body. <P>SOLUTION: The projector includes a movable member 14, which is provided to support the projector body 1 and is equipped with a connection part 14b for connecting the projector body 1 and a partial spherical part 14a; a fixing member 15 provided to fix the movable member 14, and is also equipped with a partial spherical part 15a; and a compression coil spring 12 for directly energizing the movable member 14 toward the fixing member 15. The movable member 14 is fixed by the fixing member 15, in such a situation that the movable member 14 is positioned and fixed to the fixing member 15, with the energizing force of the compression coil spring 12; whereas, the movable member 14 is set in a movable state, in such a situation that the movable member 14 is pressurized against the force of the compression coil spring 12 and moved to the side opposite to the fixing member 15, and by moving the movable member 14, the tilt of the projector body 1 with respect to the screen in the vertical and horizontal directions are adjusted. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a projector, and more particularly, to a projector including a pedestal that supports a projector main body so as to be tiltable.

  2. Description of the Related Art Conventionally, a projector including a pedestal (tilt angle adjusting table) that supports a projector main body so as to be tiltable is known (see, for example, Patent Document 1). Patent Document 1 proposes a projector including an inclination angle adjustment base (pedestal) capable of adjusting the vertical inclination of the projector body with respect to the screen. However, in Patent Document 1, when the projector is arranged at a position inclined to the left and right with respect to the screen, there is a disadvantage that the inclination of the projector body in the left-right direction cannot be adjusted. Therefore, conventionally, a projector including a stand such as a stand and a support mechanism that can adjust not only the vertical direction of the projector main body but also the horizontal direction with respect to the screen has been proposed (see, for example, Patent Documents 2 and 3). .

  In Patent Document 2, a partially spherical table base on which the projector body is placed, a lock lever that fixes the projector body in an unadjustable manner, a partially spherical ring spacer that can hold the table base, and a partially spherical surface are disclosed. A projector stand (pedestal) having a brake shoe is disclosed. In the projector stand, the holding of the table base by the ring spacer and the brake shoe is released by operating the lock lever. As a result, the table base becomes movable, and the inclination of the projector body mounted on the table base can be adjusted in the vertical direction and the horizontal direction with respect to the screen. After the inclination of the projector body is adjusted, the projector body is fixed together with the table base by operating the lock lever so that the table base is sandwiched between the ring spacer and the brake shoe.

  Patent Document 3 includes a partially spherical sliding support member that supports the projector main body, a partially spherical sheet that can hold the sliding support member, a partially spherical fixing member, and an operation unit. A projector support mechanism (pedestal) including a lock lever and an elastic member that biases the lock lever to a fixed position is disclosed. In the support mechanism for the projector, the sliding support member is released from being fixed by the seat and the fixing member by operating the lock lever downward against the urging force of the elastic member. Then, the tilt of the projector main body can be adjusted in the vertical direction and the horizontal direction by moving the tilt position of the projector main body together with the sliding support member while holding the lock lever downward. Thereafter, the projector body is fixed together with the sliding support member by returning the lock lever to the fixed position.

JP 2004-20670 A JP 2004-102152 A JP 2002-209161 A

  However, in the projector stand (pedestal) of Patent Document 2, it is necessary to adjust the tilt of the projector main body after operating the lock lever, so that the tilt adjustment work of the projector main body is complicated and complicated. is there. In addition, after adjusting the inclination of the projector body, it is necessary to operate and lock the lock body while supporting the projector body with one hand, which makes it difficult to adjust the inclination of the projector body. As a result, Patent Document 2 has a problem that it is difficult to improve workability when adjusting the tilt of the projector body.

  Further, in the support mechanism (pedestal) for the projector described in Patent Document 3, it is necessary to adjust the inclination of the projector body with the other hand while holding the state where the lock lever is pressed downward with one hand. There is an inconvenience that it is difficult to adjust the inclination of the projector body. As a result, Patent Document 3 has a problem that it is difficult to improve workability at the time of adjusting the inclination of the projector body.

  The present invention has been made to solve the above-described problems, and one object of the present invention is to be able to adjust the vertical and horizontal tilts of the projector main body and to adjust the tilt of the projector main body. It is an object of the present invention to provide a projector capable of improving workability at the time.

  A projector according to a first aspect of the present invention is a projector including a pedestal that supports the projector main body so as to be tiltable. The pedestal is provided with a connecting portion that connects the projector main body, supports the projector main body, and has a partial spherical surface. A movable member having a portion and a connecting portion of the movable member are inserted to form an opening that regulates the tilt position of the movable member. The movable member is disposed above the movable member to fix the movable member, and is partially spherical. A fixed member having a portion, a biasing member composed of a compression coil spring that biases the movable member directly in the direction of the fixed member, and a cylindrical shape through which the compression coil spring is inserted and which regulates the horizontal position of the compression coil spring The position restricting portion is integrally provided, arranged below the movable member, and has a partial spherical surface portion that can guide the partial spherical surface portion of the movable member. And a base member integrally formed with a spring holding portion for holding the compression coil spring so that the position in the horizontal direction can be regulated. One of the movable member and the fixed member corresponds to a predetermined inclined position. A plurality of fixing recesses are formed at positions where the movable member and the other fixing member are formed with fixing protrusions that can be engaged with the fixing recess, and the movable member is fixed by the biasing force of the compression coil spring. In the fixed state located on the side, the movable member is fixed to the fixed member, and in the movable state in which the movable member is pressed against the urging force of the compression coil spring and moved to the opposite side of the fixed member, the movable member is movable. In addition, the inner surface of the partial spherical portion of the movable member is guided by sliding on the outer surface of the partial spherical portion of the guide member. Ekuta of vertical and lateral direction of the body inclination is adjusted.

  In the projector according to the first aspect of the present invention, as described above, the pedestal including the urging member that urges the movable member directly toward the fixed member is provided, and against the urging force by the urging member. In the movable state in which the movable member is pressed and moved to the opposite side of the fixed member, the movable member becomes movable, and the movement of the movable member adjusts the inclination of the projector body in the vertical and horizontal directions relative to the screen. With this configuration, the projector body and the movable member are pressed against the urging force of the urging member together with the movable member to move the projector body and the tilting position of the movable member. Can be adjusted. This makes it possible to easily adjust the tilt of the projector body compared to a projector that adjusts the tilt of the projector body by releasing the lock mechanism or the like, thereby improving the workability when adjusting the tilt of the projector body. it can.

  Further, by providing a fixing concave portion on one of the movable member and the fixed member and providing a fixing convex portion on the other side, in the fixed state, the fixing concave portion formed on one of the movable member and the fixed member has the other By engaging the fixing protrusions formed on the projector body, the projector main body and the movable member can be more securely fixed to the predetermined inclined position. In addition, the movable member is provided with a coupling portion that couples the movable member and the projector main body, and the stationary member is inserted with the coupling portion of the movable member, and an opening that regulates the tilt position of the movable member is formed. Thus, the tilt positions of the projector main body and the movable member can be restricted, so that the projector main body can be prevented from being excessively tilted. In addition, a guide member having a partial spherical portion capable of guiding the movable member is provided, and the movable member is guided by sliding the inner surface of the partial spherical portion of the movable member on the outer surface of the partial spherical portion of the guide member. With such a configuration, the movable member can be moved more smoothly, so that the workability at the time of adjusting the inclination of the projector body can be further improved. Further, when the compression coil spring constituting the biasing member is inserted and the cylindrical member is integrally provided in the guide member for regulating the horizontal position of the compression coil spring, the movable member is inclined. Furthermore, the position restricting portion of the guide member can suppress the movement of the compression coil spring in the horizontal direction together with the movable member. Further, by providing a base member integrally formed with a spring holding portion for holding the compression coil spring so that the position in the horizontal direction can be regulated, when the movable member is moved, the spring holding portion of the base portion It is possible to suppress the compression coil spring from being moved in the horizontal direction.

  A projector according to a second aspect of the present invention includes a projector body, a movable member that supports the projector body, has a partial spherical surface portion, fixes the movable member, and has a stationary member having a partial spherical surface portion, and a movable member. A pedestal including a biasing member that biases directly in the direction of the fixed member, and the movable member is fixed to the fixed member in a fixed state where the movable member is positioned on the fixed member side by the biasing force of the biasing member. In the movable state in which the movable member is pressed against the urging force of the urging member and moved to the opposite side of the fixed member, the movable member becomes movable and the movable member moves, The inclination of the projector body in the vertical direction and the horizontal direction is adjusted.

  In the projector according to the second aspect of the present invention, as described above, the pedestal including the urging member that urges the movable member directly in the direction of the fixed member is provided, and against the urging force by the urging member. In the movable state in which the movable member is pressed and moved to the opposite side of the fixed member, the movable member becomes movable, and the movement of the movable member adjusts the inclination of the projector body in the vertical and horizontal directions relative to the screen. With this configuration, the projector body and the movable member are pressed against the urging force of the urging member together with the movable member to move the projector body and the tilting position of the movable member. Can be adjusted. This makes it possible to easily adjust the tilt of the projector body compared to a projector that adjusts the tilt of the projector body by releasing the lock mechanism or the like, thereby improving the workability when adjusting the tilt of the projector body. it can.

  In the projector according to the second aspect, preferably, one of the movable member and the fixed member is formed with a plurality of fixing recesses at a position corresponding to a predetermined inclined position, and the other of the movable member and the fixed member is A fixing convex portion that can be engaged with the fixing concave portion is formed. According to this structure, in the fixed state, the fixing recess formed on one of the movable member and the fixing member is engaged with the fixing protrusion formed on the other, thereby ensuring a predetermined certainty. The projector body and the movable member can be fixed at the inclined position.

  In the projector according to the second aspect, preferably, the movable member is provided with a coupling portion that couples the movable member and the projector body, and the stationary member is inserted with the coupling portion of the movable member, and the movable member. An opening that regulates the inclination position is formed. If comprised in this way, since the inclination position of a projector main body and a movable member can be controlled, it can suppress that a projector main body inclines too much.

  The projector according to the second aspect preferably further includes a guide member having a partial spherical surface portion that can guide the movable member, the fixed member is disposed above the movable member, and the guide member is the movable member. When adjusting the inclination of the projector body by moving the movable member, the inner surface of the partial spherical portion of the movable member is guided by sliding on the outer surface of the partial spherical portion of the guide member. The If comprised in this way, it will move more smoothly by comprising so that a movable member may be guided by sliding the inner surface of the partial spherical part of a movable member to the outer surface of the partial spherical part of a guide member. Since the member can be moved, the workability at the time of adjusting the inclination of the projector body can be further improved.

  In the projector according to the second aspect, preferably, the urging member is configured by a compression coil spring, the compression coil spring is inserted through the guide member, and a cylindrical position that regulates a horizontal position of the compression coil spring. A restricting portion is provided integrally. If comprised in this way, when a movable member inclines, it can suppress that a compression coil spring is moved to a horizontal direction with a movable member by the position control part of a guide member.

  In the projector according to the second aspect, preferably, the urging member includes a compression coil spring, and a base member integrally formed with a spring holding portion that holds the compression coil spring so that the position in the horizontal direction can be regulated. It has more. If comprised in this way, when a movable member is moved, it can suppress that a compression coil spring is moved to a horizontal direction by the spring holding part of a base part.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of a projector with a projector body removed from a pedestal according to an embodiment of the present invention. FIG. 2 is a perspective view of the projector in a state where the projector body is attached to the pedestal according to the embodiment of the present invention. FIG. 3 is a cross-sectional view taken along line 100-100 in FIG. FIG. 4 is an exploded perspective view of a pedestal according to an embodiment of the present invention. FIG. 5 is a plan view of the fixing member of the pedestal shown in FIG. First, the structure of the projector according to the present embodiment will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, the projector according to the present embodiment includes a projector main body 1 and a pedestal 10.

  As shown in FIGS. 1 and 2, the frame of the projector body 1 includes a front frame 2, an upper frame 3, and a lower frame 4. A lens insertion portion 2a into which a projection lens 5 for projecting an image is inserted is formed on the end frame side of the front frame 2 in the direction of arrow A. Further, a plurality of exhaust ports 2b through which cooling air is exhausted are formed in the end frame side portion of the front frame 2 in the arrow B direction.

  As shown in FIG. 3, a connecting hole 4 a into which a connecting portion 14 b of a pedestal 10 described later is inserted is formed in the center portion of the lower frame 4. A screw insertion hole 4b into which a screw 6 for connecting the connecting portion 14b is inserted is formed in the vicinity of the connecting hole 4a of the lower frame 4. As shown in FIG. 2, the projector body 1 is attached to the pedestal 10 so as to be tiltable in the directions of arrows E and F (up and down directions with respect to the screen) and in the directions of arrows G and H (left and right directions with respect to the screen).

  As shown in FIGS. 3 and 4, the pedestal 10 includes a base member 11, a compression coil spring 12, a guide member 13, a movable member 14 that supports the projector body 1, and a fixed member 15 that fixes the movable member 14. It has.

  As shown in FIGS. 3 and 4, the base member 11 has a disk portion 11 a and a cylindrical spring holding that protrudes upward from the upper surface of the disk portion 11 a and has the same axial center as the disk portion 11 a. The part 11b is provided integrally. An assembly hole 11c is formed in a portion of the disc portion 11a in the vicinity of the spring holding portion 11b. A compression coil spring 12 for biasing the movable member 14 in the direction of the fixed member 15 is fitted into the spring holding portion 11b. The compression coil spring 12 is configured to be held by the spring holding portion 11b in a state where the movement in the horizontal direction is restricted. In addition, four leg members 11d made of rubber having a function of preventing slipping are provided on the lower surface portion of the disk portion 11a.

  As shown in FIGS. 3 and 4, the guide member 13 has a partial spherical surface portion 13a and a ring portion 13b formed at the lower end portion of the partial spherical surface portion 13a. An opening 13c through which the compression coil spring 12 is inserted is formed at the upper end of the partial spherical portion 13a. A spring position restricting portion 13d that extends downward in a cylindrical shape is integrally formed at the edge of the opening 13c. The outer surface of the partial spherical portion 13 a has a function of guiding the inner surface of the partial spherical portion 14 a of the movable member 14. The spring position restricting portion 13 d restricts the upper portion of the compression coil spring 12 from moving in the horizontal direction when the movable member 14 is moved, and the upper end portion of the compression coil spring 12 is the partial spherical surface portion 13 a of the guide member 13. It has a function which prevents engaging with. An assembly hole 13e is formed in the vicinity of the spring position restricting portion 13d of the partial spherical surface portion 13a. The ring portion 13b of the guide member 13 is fixed to the base member 11 with screws (not shown) or the like.

  As shown in FIGS. 3 and 4, the movable member 14 is provided so as to protrude upward from the partial spherical surface portion 14a urged toward the fixed member 15 by the compression coil spring 12 and the upper end portion of the partial spherical surface portion 14a. Connected portion 14b. A pair of fixing convex portions 14c and 14d extending upward are formed on both side portions of the connecting portion 14b of the partial spherical surface portion 14a. The upper ends of the fixing convex portions 14c and 14d are formed in a chamfered shape or a round shape. An assembly hole 14e is formed in the vicinity of one fixing convex portion 14c of the partial spherical surface portion 14a. The connecting portion 14b includes a cylindrical portion 14f extending upward from the upper end portion of the partial spherical portion 14a, and a horizontal portion 14g extending in the horizontal direction from the upper end portion of the cylindrical portion 14f. A screw insertion hole 14h into which a screw 6 for connecting the lower frame 4 of the projector body 1 and the movable member 14 is inserted is formed in the horizontal portion 14g.

  As shown in FIGS. 3 and 4, the fixing member 15 includes a partial spherical surface portion 15 a and a ring portion 15 b formed at the lower end portion of the partial spherical surface portion 15 a. At the upper end portion of the partial spherical surface portion 15a, the connecting portion 14b of the movable member 14 is inserted, and an opening portion 15c that restricts the inclined position of the columnar portion 14f of the connecting portion 14b of the movable member 14 is formed. As shown in FIG. 5, the opening 15c is formed such that the length L2 in the arrow C direction and the arrow D direction is larger than the length L1 in the arrow A direction and the arrow B direction. Therefore, the movable range of the movable member 14 in the vertical direction (about ± 10 degrees) with respect to the screens in the arrow C direction and the arrow D direction is approximately horizontal, and the movable range in the horizontal direction (about It is configured to be larger than ± 1.5 degrees). Around the opening portion 15c, a plurality of fixing hole portions 15d with which the fixing convex portions 14c and 14d of the movable member 14 are engaged are formed in a predetermined angular range. The fixing hole 15d is an example of the “fixing recess” in the present invention. The number of the fixing holes 15d arranged along the arrow C direction and the arrow D direction corresponding to the movable range of the movable member 14 is the number arranged along the arrow A direction and the arrow B direction. It is formed so as to be more than that. An assembly hole 15e is formed in a predetermined portion of the outer peripheral portion of the fixing hole 15d. As shown in FIG. 3, the assembly holes 11c, 13e, 14e and 15e are formed so as to be arranged on a straight line in the vertical direction when the projector body 1 is set at the horizontal position. A screw 6 is positioned on the extension line. Thereby, at the time of an assembly, it is comprised so that the screw 6 can be fastened with respect to the nut 7 through a screwdriver through this assembly hole 11c, 13e, 14e, and 15e. The ring portion 15b of the fixing member 15 is fixed to the base member 11 with screws (not shown) or the like.

  6 to 8 are cross-sectional views for explaining the operation of adjusting the inclination of the projector main body. Next, a method for adjusting the inclination of the projector body will be described with reference to FIGS. 3 and 6 to 8.

  First, as shown in FIG. 3, in a state where the force in the arrow J direction is not applied to the projector main body 1, the movable member 14 is urged in the arrow K direction by the compression coil spring 12 and pressed by the fixed member 15. Yes. As a result, since the fixing convex portions 14c and 14d of the movable member 14 are engaged with the fixing hole 15d of the fixing member 15, the movable member 14 is in a fixed state in which the inclination cannot be adjusted.

  Next, as shown in FIG. 6, when a force in the direction of arrow J is applied by the user against the biasing force of the compression coil spring 12 from the fixed state, the movable member 14 is moved in the direction of arrow J. Thus, the engagement between the fixing projections 14c and 14d of the movable member 14 and the fixing hole 15d of the fixing member 15 is released, so that the movable body 14 and the movable state in which the inclination of the projector body 1 can be adjusted can be obtained. Become.

  Next, as shown in FIG. 7, the projector main body 1 is placed in a state where the inner surface of the partial spherical portion 14 a of the movable member 14 in the movable state is in contact with the outer surface of the partial spherical portion 15 a of the guide member 13. When tilted together with the movable member 14, the inner surface of the partial spherical portion 15 a of the movable member 14 is slid on the outer surface of the partial spherical portion 13 a of the guide member 13, whereby the movable member 14 is guided by the guide member 13. Thus, it is tilted to the tilt position desired by the user.

  Next, as shown in FIG. 8, when the user stops applying the force in the arrow J direction, the movable member 14 is urged by the compression coil spring 12 in the direction of the fixed member 15 (arrow K direction). Thereby, the fixing convex portions 14c and 14d of the movable member 14 are engaged with the fixing hole 15d of the fixing member 15, and the movable member 14 is in a fixed state in which the inclination cannot be adjusted.

  In the present embodiment, as described above, the pedestal 10 including the compression coil spring 12 that directly biases the movable member 14 in the direction of the fixed member 15 is provided, and the movable member 14 resists the biasing force of the compression coil spring 12. In the movable state in which is pressed and moved to the opposite side of the fixed member 15, the movable member 14 becomes movable, and the movement of the movable member 14 causes the projector body 1 to tilt in the vertical and horizontal directions with respect to the screen. By being configured to be adjusted, the projector body 1 can be moved only by pressing the projector body 1 against the urging force of the compression coil spring 12 together with the movable member 14 to move the tilt positions of the projector body 1 and the movable member 14. Adjusting the tilt in the vertical direction (arrow E and F direction) and the horizontal direction (arrow G and H direction) It can be. Thus, the tilt of the projector main body 1 can be easily adjusted as compared with the projector that adjusts the tilt of the projector main body by releasing the lock mechanism or the like, so that the workability at the time of adjusting the tilt of the projector main body 1 is improved. be able to.

  In the above embodiment, the fixing member 15 is provided with the fixing hole 15d, and the movable member 14 is provided with the fixing convex portions 14c and 14d, so that the fixing hole formed in the fixing member 15 in the fixed state. By engaging the fixing convex portions 14c and 14d formed on the movable member 14 with 15d, the projector main body 1 and the movable member 14 can be more reliably fixed at the predetermined inclined position. Further, the movable member 14 is provided with a connecting portion 14b for connecting the movable member 14 and the projector main body 1, the connecting portion 14b of the movable member 14 is inserted into the fixed member 15, and the inclined position of the movable member 14 is set. By forming the opening 15c to be regulated, the tilt positions of the projector body 1 and the movable member 14 can be regulated, so that the projector body 1 can be prevented from being tilted excessively.

  Further, a guide member 13 having a partial spherical surface portion 13 a capable of guiding the movable member 14 is provided, and an inner surface of the partial spherical surface portion 14 a of the movable member 14 is slid on an outer surface of the partial spherical surface portion 13 a of the guide member 13. Thus, by configuring the movable member 14 to be guided, the movable member 14 can be moved more smoothly, so that workability at the time of adjusting the inclination of the projector body 1 can be further improved. In addition, when the compression coil spring 12 is inserted and the guide member 13 is integrally provided with a cylindrical spring position regulating portion 13d that regulates the horizontal position of the compression coil spring 12, the movable member 14 is inclined. Further, the spring position restricting portion 13 d of the guide member 13 can suppress the movement of the compression coil spring 12 in the horizontal direction together with the movable member 14. In addition, the compression coil spring 12 can be prevented from being engaged with the guide member 13 by the spring position restricting portion 13d extending downward. Further, by providing the base member 11 integrally formed with the spring holding portion 11b for holding the compression coil spring 12 so that the position in the horizontal direction can be regulated, when the movable member 14 is moved, the base portion 11 The spring holding portion 11b can suppress the compression coil spring 12 from moving in the horizontal direction.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiment but by the scope of claims for patent, and all modifications within the meaning and scope equivalent to the scope of claims for patent are included.

  For example, in the above-described embodiment, the fixing convex portions 14c and 14d are formed on the movable member 14, and the fixing hole 15d including a through hole as an example of the fixing concave portion is formed on the fixing member 15. The present invention is not limited to this, and a concave fixing recess that does not penetrate may be provided instead of the fixing hole formed of the through hole. Further, the fixing convex portion and the fixing concave portion (fixing hole portion) may be omitted.

  Moreover, in the said embodiment, although the convex part 14c and 14d for fixation was formed in the movable member 14, and the hole 15d for fixation was formed in the fixed member 15, the present invention is not restricted to this, A movable member A fixing hole (fixing recess) may be formed on the fixing member, and the fixing protrusion may be formed on the fixing member.

  In the above embodiment, an example in which the pair of fixing convex portions 14c and 14d is formed on the movable member 14 is shown. However, the present invention is not limited to this, and one or three or more fixing convex portions are formed. May be.

  Moreover, in the said embodiment, although the example of the base 10 which provided the guide member 13 and the base member 11 was shown, this invention is not restricted to this, You may abbreviate | omit a guide member and a base member.

1 is a perspective view of a projector with a projector body removed from a pedestal according to an embodiment of the present invention. 1 is a perspective view of a projector in a state in which a projector main body is attached to a pedestal according to an embodiment of the present invention. FIG. 3 is a cross-sectional view taken along line 100-100 in FIG. 2. It is a disassembled perspective view of the base of the projector by one Embodiment of this invention. It is a top view of the fixing member of the base shown in FIG. It is sectional drawing for demonstrating the operation | movement which adjusts the inclination of a projector main body. It is sectional drawing for demonstrating the operation | movement which adjusts the inclination of a projector main body. It is sectional drawing for demonstrating the operation | movement which adjusts the inclination of a projector main body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Projector main body 10 Base 11 Base member 11b Spring holding part 12 Compression coil spring 13 Guide member 13a Partial spherical surface part 13d Spring position control part 14 Movable member 14a Partial spherical surface part 14b Connection part 14c, 14d Fixing convex part 14f Cylindrical part 15 Fixing member 15a Partial spherical surface portion 15c Opening portion 15d Fixing hole (fixing recess)

Claims (7)

In a projector having a pedestal that supports the projector body in a tiltable manner,
The pedestal is
A connecting part for connecting the projector body, and a movable member that supports the projector body and has a partial spherical surface;
The connecting portion of the movable member is inserted to form an opening that regulates the tilt position of the movable member, and is disposed above the movable member to fix the movable member, and has a partial spherical surface portion. A fixing member;
A biasing member comprising a compression coil spring that biases the movable member directly in the direction of the fixed member;
The compression coil spring is inserted, and a cylindrical position restricting portion for restricting a horizontal position of the compression coil spring is integrally provided, disposed below the movable member, and the partial spherical portion of the movable member is A guide member having a guideable partial spherical surface;
A base member integrally formed with a spring holding portion for holding the compression coil spring so that the position in the horizontal direction can be regulated;
A plurality of fixing recesses are formed in one of the movable member and the fixed member at a position corresponding to a predetermined inclined position, and the other of the movable member and the fixed member can be engaged with the fixing recess. A convex part for fixing is formed,
In a fixed state where the movable member is positioned on the fixed member side by the biasing force of the compression coil spring, the movable member is fixed to the fixed member,
In the movable state in which the movable member is pressed against the urging force of the compression coil spring and moved to the opposite side of the fixed member, the movable member becomes movable and the partial spherical surface portion of the movable member The inner surface of the projector is guided by sliding on the outer surface of the partial spherical portion of the guide member, and the vertical and horizontal inclinations of the projector body with respect to the screen are adjusted by the movement of the movable member. ,projector. The projector body,
While supporting the projector main body, the movable member having the partial spherical surface portion, the movable member is fixed, the fixed member having the partial spherical surface portion, and the movable member is directly biased toward the fixed member. A pedestal including a biasing member,
With the urging force of the urging member, in the fixed state where the movable member is located on the fixed member side, the movable member is fixed to the fixed member,
In the movable state in which the movable member is pressed against the urging force of the urging member and moved to the opposite side of the fixed member, the movable member becomes movable and the movable member moves. A projector in which the vertical and horizontal inclinations of the projector body with respect to the screen are adjusted.   A plurality of fixing recesses are formed in one of the movable member and the fixed member at a position corresponding to a predetermined inclined position, and the other of the movable member and the fixed member can be engaged with the fixing recess. The projector according to claim 2, wherein a fixed fixing convex portion is formed. The movable member is provided with a connecting portion that connects the movable member and the projector main body,
4. The projector according to claim 2, wherein the fixed member is inserted with a connecting portion of the movable member, and is formed with an opening that regulates an inclined position of the movable member. 5. A guide member having a partial spherical surface capable of guiding the movable member;
The fixed member is disposed above the movable member, and the guide member is disposed below the movable member,
When adjusting the inclination of the projector body by moving the movable member, the inner surface of the partial spherical portion of the movable member is guided by sliding on the outer surface of the partial spherical portion of the guide member. The projector according to any one of claims 2 to 4. The biasing member is constituted by a compression coil spring,
The projector according to claim 5, wherein the guide member is integrally provided with a cylindrical position restricting portion through which the compression coil spring is inserted and restricting a horizontal position of the compression coil spring. The biasing member is constituted by a compression coil spring,
7. The projector according to claim 2, further comprising a base member integrally formed with a spring holding portion that holds the compression coil spring so that a position in a horizontal direction can be regulated.

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