JP2008032782A - Leg adjustment mechanism and projector equipped with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a leg adjustment mechanism capable of enlarging the adjustable range of a tilt angle without making a leg longer, and to provide a projector equipped with the leg adjustment mechanism. <P>SOLUTION: A leg shifting part 100 as the leg adjustment mechanism to shift the leg and vary the tilt angle in the setting of electronic equipment (e.g., projector 1) is arranged in a housing 10 for the electronic equipment (e.g., projector 1), the leg shifting part 100 includes: a vertical moving part 200 constituted of a leg main body 210 that can freely move in a vertical direction related to the housing 10; a back-and-forth moving part 300 that can freely move the vertical moving part 200 backward and forward related to the housing 10; and a movement guide part 400 arranged in the housing 10 so as to guide the movement of the back-and-forth moving part 300. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a leg adjusting mechanism of an electronic device.

  Conventionally, as an electronic device, for example, a projector is used not only in a company but also in various places such as homes and exhibition halls. The projector stores a light source, a light modulation unit, a projection unit, and the like inside a casing that forms an exterior. Then, the projector modulates the light beam emitted from the light source according to the image information to form an optical image, and projects the optical image formed from the projection unit as an image on a screen or the like installed outside the projector. .

In such a projector as an electronic device, there is a leg portion that adjusts the inclination of the projector when the projector is installed on an installation surface such as a desk in order to appropriately project an optical image at a predetermined position on the installed screen. Is provided. With regard to such a leg portion, Patent Document 1 discloses a screw having an extension foot suspended from the lower surface of the projector body, screwed to a shaft support portion having an insertion screw hole fixed to the projector body, and a grounding portion at the lower end. A movable support part composed of a rod-shaped rotation support shaft cut off, a knob rotatably attached to the upper surface of the projector main body, and a retractable and rotational force installed so as to connect the movable support part and the knob. The structure provided with the rotational force transmission part which transmits is disclosed.
By the way, such leg portions are provided at, for example, the four corners of the projector main body, and each rotation support shaft moves in the vertical direction of the projector main body by rotating the knob of the leg portion while viewing the projection image. As a result, the tilt angle of the projector is adjusted with respect to the installation surface.
The maximum value that the projector can tilt (maximum tilt angle) is the length of the rotation support shaft (more precisely, the distance between the bottom surface of the projector main body and the grounding portion when the movable support portion is moved downward to the maximum). It will be decided by.

JP 2003-21866 A

  However, in the case where the installation position of the screen is higher than usual with respect to the installation position of the projector, depending on the mutual installation position of the projector and the screen, the installation surface on which the projector is installed is disclosed in Patent Document 1. However, there is a situation in which projection cannot be performed on the screen unless it is further tilted beyond the maximum tilt angle determined by the length of the rotation support shaft. In that case, the user further tilts the projector by inserting an object between the grounding portion provided at the lower end of the rotation support shaft and the installation surface, and projects it onto the screen. As described above, there is a problem that the adjustment range of the tilt angle of the projector is insufficient depending on the mutual installation position of the projector and the screen. In order to solve this problem, it is possible to design the length of the rotation support shaft to be longer at the design stage. In such a case, in order to accommodate the rotation support shaft, the height of the casing ( There is a new problem that it is necessary to increase (thicken) the direction of (thickness), which causes an increase in the size of the projector.

  The present invention has been made in view of the above problems, and provides a leg adjustment mechanism and a projector including the leg adjustment mechanism that can expand the adjustment range of the inclination angle without increasing the length of the legs. With the goal.

  In order to achieve the above-described object, the leg adjusting mechanism of the present invention is a leg adjusting mechanism of an electronic device having a casing constituting an exterior, and the casing is moved at an inclination angle in the installation of the electronic device. The leg moving unit is provided with a leg moving unit configured to have a leg main body that is movable in a vertical direction with respect to the housing, and the vertical moving unit is moved with respect to the housing. It is characterized by comprising a front-rear moving part that is movable in the front-rear direction, and a movement guide part that is provided in the casing and performs guidance for movement of the front-rear moving part.

According to such a leg adjusting mechanism, the leg moving unit that is provided on the casing and moves and changes the inclination angle in the installation of the electronic device includes the vertical moving unit, the front and rear moving unit, and the movement guide unit. . The leg moving unit is movable in the vertical direction with respect to the housing by the leg main body constituting the vertical moving unit, and changes the inclination angle of the electronic device. In addition, the front / rear moving unit is guided by the movement guide unit that is provided in the housing and performs guidance for moving the front / rear moving unit, so that the up / down moving unit is movable in the front / rear direction with respect to the housing. Thereby, the up-and-down moving part can also move in the front-rear direction with respect to the housing, and the inclination angle of the electronic device can be varied by the leg main body. Therefore, the leg moving unit can change not only the inclination angle of the electronic device by the leg body of the up and down movement unit, but also the inclination angle of the electronic device by moving back and forth by the front and rear movement unit. The adjustment range of the tilt angle can be expanded without increasing the leg length.
Note that the vertical direction with respect to the casing refers to the vertical direction with respect to the height (thickness) direction of the casing. Further, the front-rear direction with respect to the housing refers to a vertical direction when the electronic device is viewed from the upper surface side.

  In the leg adjusting mechanism, the up and down moving unit has a leg fixing unit that fixes the leg main body, and the front and rear moving unit has a moving side fixing unit that fixes the up and down moving unit while moving in the front and rear direction. The guide part preferably has a guide-side fixing part that interacts with the moving-side fixing part of the front-rear moving part and fixes the up-and-down moving part in a state of moving in the front-rear direction.

  According to such a leg adjustment mechanism, the up-and-down moving part has the leg fixing part and fixes the leg main body. The front-rear moving unit has a moving-side fixing unit and interacts with the guide-side fixing unit of the moving guide unit to fix the up-down moving unit in a state of moving in the front-rear direction. As a result, the leg moving unit fixes the leg main body of the up / down moving unit in a state of moving in the up / down direction and fixes the up / down moving unit in a state of moving in the front / rear direction. Therefore, the leg body can be fixed in the vertical direction and the front-rear direction. After adjusting the inclination angle of the leg body, the user can fix the leg body and stably install the electronic device.

In the leg adjusting mechanism, it is preferable that the movement guide unit further includes a movement restriction unit that regulates the upward movement of the leg main body of the vertical movement unit.
According to such a leg adjustment mechanism, when the up-and-down moving part moves back and forth, for example, when the leg fixing part is released by restricting the upward movement of the leg main body by the movement restricting part. For example, the leg main body hits a structure housed in the electronic apparatus main body, thereby preventing problems such as damage to the structure. In addition, it is possible to prevent problems such as the user's hand being adjusted being pinched between the electronic device main body and the installation surface.

In the leg adjusting mechanism, it is preferable that the front / rear moving unit moves in the direction of the part of the housing that is opposite the center of gravity of the electronic device main body.
According to such a leg adjustment mechanism, for example, when an electronic device is installed with a three-point support structure, the electronic device is prevented from tilting even when one forward / backward moving unit is used. It is possible to perform a stable movement operation of the forward / backward moving unit, and it is possible to install a stable electronic device.

In the leg adjusting mechanism, the casing is preferably formed with an opening that allows the vertical movement unit and the front / rear movement unit to be attached to and detached from the movement guide unit.
According to such a leg adjusting mechanism, when the vertical moving part and the forward / backward moving part need to be adjusted or replaced due to deterioration of the vertical moving part and the forward / backward moving part over time or dropping of the electronic device, etc., it is formed on the housing. Using the opening, the vertical moving part and the front / rear moving part are attached and detached for adjustment or replacement. Therefore, it is possible to improve the maintainability of the up and down moving unit and the back and forth moving unit.

In order to achieve the above-described object, a projector according to the present invention is modulated by any of the above-described leg adjustment mechanisms, a light modulation unit that modulates a light beam emitted from a light source according to image information, and a light modulation unit. A projection unit for projecting the luminous flux.
By including any of the above-described leg adjusting mechanisms, it is possible to realize a projector that can achieve the effects of the leg adjusting mechanism.

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

FIG. 1 is a schematic diagram illustrating a configuration of an optical system of a projector as an electronic apparatus according to an embodiment of the invention. The configuration of the optical system 5 of the projector 1 will be described with reference to FIG.
Note that the projector 1 includes an optical component housing 65 that houses the optical system 5, a power supply unit (not shown), a circuit configuration unit (not shown), a cooling configuration unit (not shown), and the like that constitute the exterior of the projector 1. The housing 10 is housed inside. Further, the external shape of the projector 1 is a substantially rectangular parallelepiped shape.

  As shown in FIG. 1, the optical system 5 of the projector 1 includes a light source device 50, an illumination optical system 60, a light modulation unit 70, a color synthesis optical unit 80, and a projection unit 90. The illumination optical system 60 includes an integrator illumination optical system 61, a color separation optical system 62, and a relay optical system 63.

  The optical component casing 65 accommodates the components constituting the light source device 50, the illumination optical system 60, the light modulation unit 70, and the color synthesis optical unit 80, and is unitized. In addition, the illumination optical system 60 which comprises the optical system 5 in this embodiment can be changed or abbreviate | omitted suitably according to the optical system to be used.

  The projector 1 provided with such an optical system 5 forms an optical image by modulating the light beam emitted from the light source device 50 according to image information by the light modulation unit 70, and forms the optical image via the projection unit 90. An optical image is projected onto a screen (not shown), for example.

The configuration and operation of the optical system 5 will be described.
The light source device 50 as a light source uses a discharge-type lamp 51 in the present embodiment. Specifically, a high pressure mercury lamp is used as the lamp 51. The lamp 51 includes an arc tube 51a that emits light by discharge and emits a light beam radially, and a reflector 51b that emits the radial light beam emitted from the arc tube 51a as substantially parallel light in the direction of the illumination optical system 60. Configured.

  The integrator illumination optical system 61 constituting the illumination optical system 60 is an optical system for making the illuminance of the light beam emitted from the light source device 50 uniform in a plane orthogonal to the illumination optical axis L (illustrated by a one-dot chain line). . The integrator illumination optical system 61 includes a first lens array 61a, a second lens array 61b, a polarizing element 61c, and a superimposing lens 61d.

  The first lens array 61a has a configuration in which small lenses having a substantially rectangular outline when viewed from the illumination optical axis L direction are arranged in a matrix. Each small lens divides the light beam emitted from the light source device 50 into partial light beams and emits them in the direction along the illumination optical axis L.

  The second lens array 61b has substantially the same configuration as the first lens array 61a, and has a configuration in which small lenses are arranged in a matrix. The second lens array 61b has a function of forming an image of each small lens of the first lens array 61a together with the superimposing lens 61d on a light valve 71 as a light modulation element to be described later.

  The polarizing element 61c is an optical element that converts (aligns) the polarization direction of each partial light beam divided by the first lens array 61a and the second lens array 61b into a substantially uniform polarized light beam. The polarizing element 61c in the present embodiment has a configuration in which polarization separation films (not shown) and reflection films (not shown) that are inclined with respect to the illumination optical axis L are alternately arranged. The polarization separation film transmits one polarized light beam among the P-polarized light beam and S-polarized light beam included in each partial light beam, and reflects the other polarized light beam. The other polarized light beam reflected is bent by the reflecting film and emitted in the emission direction of one polarized light beam, that is, the direction along the illumination optical axis L. The emitted polarized light beam is polarized by a phase difference plate (not shown) disposed on the light beam exit surface (not shown) of the polarizing element 61c, and the polarization direction of almost all the polarized light beams is aligned as a polarized light beam in one direction. It is done.

  In the projector 1 using the light valve 71 of the type that modulates a polarized light beam, only a polarized light beam in one direction can be used, and therefore approximately half of the light beam from the arc tube 51a that emits a polarized light beam in a random direction is not used. For this reason, the use efficiency of light in the light modulator 70 is increased by converting the light beam emitted from the light source device 50 into a polarized light beam in approximately one direction by using the polarizing element 61c.

  The superimposing lens 61d condenses a plurality of partial light beams converted into polarized light beams in substantially one direction by the polarizing element 61c and superimposes them on image forming regions of three light valves 71 (to be described later) of the light modulator 70. It is. The light beam emitted from the superimposing lens 61 d is emitted to the color separation optical system 62.

  The color separation optical system 62 includes two dichroic mirrors 62a and 62b and a reflection mirror 62c. The plurality of partial light beams emitted from the integrator illumination optical system 61 are separated into three color lights of red (R), green (G), and blue (B) by the two dichroic mirrors 62a and 62b.

  The relay optical system 63 includes an incident side lens 63a, a pair of relay lenses 63c, and reflection mirrors 63b and 63d. In this embodiment, the relay optical system 63 has a function of guiding the blue light, which is the color light separated by the color separation optical system 62, to a light valve 71B for blue light, which will be described later, of the light modulator 70.

  At this time, the dichroic mirror 62a of the color separation optical system 62 transmits the green light component and the blue light component and reflects the red light component among the light beams emitted from the integrator illumination optical system 61. The red light reflected by the dichroic mirror 62a is reflected by the reflection mirror 62c, passes through the field lens 61e, and reaches the light valve 71R for red light. The field lens 61e converts each partial light beam emitted from the second lens array 61b into a light beam parallel to the central axis (principal ray). The same applies to the field lens 61e provided on the light incident side of the light valves 71B and 71G for blue light and green light.

  Of the blue light and green light transmitted through the dichroic mirror 62a, the green light is reflected by the dichroic mirror 62b, passes through the field lens 61e, and reaches the light valve 71G for green light. On the other hand, the blue light passes through the dichroic mirror 62b, passes through the relay optical system 63, passes through the field lens 61e, and reaches the light valve 71B for blue light. Note that the relay optical system 63 is used for blue light because the optical path length of the blue light is longer than the optical path lengths of the other color lights, thereby preventing a reduction in light use efficiency due to light divergence or the like. It is to do. That is, this is to transmit the partial light beam incident on the incident side lens 63a to the field lens 61e as it is. The relay optical system 63 is configured to pass blue light out of the three color lights, but is not limited thereto, and may be configured to pass red light, for example.

  The light modulator 70 modulates the incident light beam according to image information to form an optical image (color image). The light modulator 70 includes three incident polarizing plates 72 (red light incident polarizing plate 72R and green light incident polarizing plate) as incident-side polarizing elements on which the respective color lights separated by the color separation optical system 62 are incident. 72G and a blue light incident polarizing plate 72B). In addition, three light valves 71 (red light light valve 71R, green light light valve 71G, and blue light light valve 71B) are provided as light modulation elements installed downstream of each incident polarizing plate 72. Further, three exit polarizing plates 73 (red light exit polarizing plate 73R, green light exit polarizing plate 73G, and blue light exit polarizing plate 73B) as exit side polarizing elements installed at the rear stage of each light valve 71. With.

  The light valve 71 (71R, 71G, 71B) uses a transmissive high-temperature polysilicon TFT (Thin Film Transistor) as a switching element. The light valve 71 (71R, 71G, 71B) seals liquid crystal in a pair of opposed transparent substrates. It is configured. The light valve 71 modulates the light beam incident through the incident polarizing plate 72 according to image information, forms an optical image, and emits it.

  The incident polarizing plate 72 transmits a polarized light beam in one direction out of each color light separated by the color separation optical system 62 and absorbs the other light beams. Closely fixed to the plane of the substrate. Similarly to the incident polarizing plate 72, the exit polarizing plate 73 is also tightly fixed to the plane of a transparent substrate having a flat rectangular shape, and transmits a polarized light beam in a predetermined direction out of the light beams emitted from the light valve 71. The polarization axis of the polarized light beam to be transmitted is set to be orthogonal to the polarization axis of the polarized light beam to be transmitted by the incident polarizing plate 72.

  The color synthesis optical unit 80 includes one cross dichroic prism 81. The cross dichroic prism 81 is an optical element that synthesizes an optical image modulated for each color light emitted from the exit polarizing plate 73 to form a color image. The cross dichroic prism 81 has a substantially square shape in plan view in which four right-angle prisms are bonded. A dielectric multilayer film is formed along the interface at the substantially X-shaped interface where the right-angle prisms are bonded together. One of the substantially X-shaped dielectric multilayer films reflects red light, the other dielectric multilayer film reflects blue light, and red light and blue light correspond to the corresponding dielectric multilayer films. Reflected and bent by the film. Green light is transmitted through both dielectric multilayer films.

  Thereby, the traveling direction of red light and blue light can be aligned with the traveling direction of green light, and three color lights are synthesized. The color light synthesized by the cross dichroic prism 81 is emitted in the direction of the projection lens 91 constituting the projection unit 90. The image light emitted from the cross dichroic prism 81 is projected onto, for example, a screen (not shown) by the projection lens 91.

  FIG. 2 is an explanatory view showing an inclined state when the leg moving unit as the leg adjusting mechanism according to the embodiment of the present invention is applied to the projector, and FIG. FIG. 2B is a side view of the projector when the leg main body is extended to the maximum in the state where the portion is moved forward in the maximum direction. FIG. 2B is a side view of the projector in the state of FIG. It is the schematic plan view seen from the bottom face side. 3 is an explanatory view showing an inclined state when a leg moving unit as a leg adjusting mechanism is applied to the projector, as in FIG. 2, and FIG. 3 (a) is a back-and-forth movement constituting the leg moving unit. FIG. 3B is a schematic plan view of the projector viewed from the bottom side of the projector in the state of FIG. 3A. With reference to FIG. 2 and FIG. 3, the operation of the leg moving unit 100 when the present invention is applied to the projector 1 will be described.

  As shown in FIGS. 2A and 2B, the projector 1 according to this embodiment includes two fixed legs 15 (15a and 15b) and one leg moving unit on a bottom surface 10a of a casing 10 having a substantially rectangular parallelepiped shape. The projector 1 is supported on the installation surface (in the present embodiment, the desk surface 900) by a so-called three-point support structure configured with 100 (specifically, the leg main body 210). The fixed legs 15 (15a, 15b) are installed so as to protrude from the bottom surface 10a in the vicinity of the two corners on the rear side (opposite to the projection direction) of the bottom surface 10a. The fixed legs 15 (15a, 15b) have a spherical shape and are made of a synthetic resin material.

  Specifically, the leg moving unit 100 as the leg adjusting mechanism guides the movement of the up-and-down moving unit 200 having the leg main body 210, the front-and-rear moving unit 300 that moves the up-and-down moving unit 200 back and forth, and the back-and-forth moving unit 300. It is comprised with the movement guide part 400. FIG. The movement guide unit 400 is provided on the bottom surface 10 a of the housing 10, and is substantially parallel to the projection direction from the front side (projection direction side) of the housing 10, and the center of gravity portion of the projector 1 (the center of gravity position is a + mark in each figure). It is installed in the direction of the part of the casing opposite to the figure. Therefore, the front-rear moving unit 300 is guided by the movement guide unit 400 and can move from the front side of the housing 10 toward the housing part direction opposite to the center of gravity part (center of gravity position) direction of the projector 1. . Thereby, the leg main body 210 can also move similarly. Details of the up-and-down moving unit 200, the back-and-forth moving unit 300, and the movement guide unit 400 will be described in detail after FIG. In the leg moving unit 100, the part that actually contacts the desk surface 900 is a grounding unit 250 installed in the leg main body 210.

Note that the inclination angle of the projector 1 with respect to the desk surface 900 is determined by the distance between the fixed leg 15 (15a, 15b) and the leg body 210 and the amount of extension of the leg body 210.
As shown in FIG. 2A, in the present embodiment, the leg main body 210 of the vertical movement unit 200 is moved in the vertical direction (housing) with respect to the bottom surface 10a in a state where the front / rear movement unit 300 is moved to the maximum in the forward direction. 10 in the height direction). The inclination angle when the leg body 210 is extended to the maximum is θ ₁ .

FIGS. 3A and 3B are diagrams showing a state in which the front-rear moving unit 300 of the leg moving unit 100 is moved rearward along the movement guide unit 400. FIG. In the present embodiment, when moving the forward / backward moving unit 300, the leg main body 210 of the up / down moving unit 200 is moved in the maximum downward direction (extended). Therefore, the rearward movement of the leg body 210 does not change the amount of extension of the leg body 210, and the distance between the fixed leg 15 (15a, 15b) and the leg body 210 is shortened. Therefore, as shown in FIG. 3A, the inclination angle θ ₂ having a large inclination angle can be obtained with respect to the inclination angle θ ₁ shown in FIG.

FIG. 4 is a schematic perspective view of a leg moving unit as a leg adjusting mechanism. FIG. 5 is a schematic plan view of a leg moving unit as a leg adjusting mechanism. FIG. 6 is a schematic cross-sectional view in the left-right direction of the leg moving unit when the front-rear moving unit is moved in the front-rear direction. FIG. 7 is a schematic cross-sectional view in the front-rear direction in a state in which the front-rear moving unit has moved to the maximum in the front direction. Note that FIG. 4 shows a perspective view mainly in one direction with respect to the configuration of the movement guide unit 400 in order to facilitate understanding of the configuration of the leg moving unit 100, and a part thereof is omitted. 6 shows the AA cross section shown in FIG. 5. The left-right direction is a direction parallel to the surface of the bottom surface 10a of the housing 10 and perpendicular to the front-rear direction.
With reference to FIGS. 4-7, the detailed structure and operation | movement of the leg moving part 100 are demonstrated.

  As described above, the leg moving unit 100 as the leg adjusting mechanism includes the up-and-down moving unit 200 having the leg main body 210, the back-and-forth moving unit 300 that moves the up-and-down moving unit 200 in the front-rear direction, and the movement of the front-and-rear moving unit 300. It is comprised with the movement guide part 400 to guide.

The configuration of the forward / backward moving unit 300 will be described.
The front-rear moving unit 300 is configured to include a moving side fixing unit 320 and a vertical movement guide unit 330 on the moving base unit 310 with the moving base unit 310 as a reference. The movement base unit 310 is a part that serves as a base that is moved by being guided by the movement guide unit 400. The moving base portion 310 includes a plate-shaped moving base member 311 that is substantially rectangular in plan view. In the base member 311 for movement, the movement-side fixing portion 320 is configured on each of the two side surface portions 311c and 311d in a direction parallel to the moving direction of the front-rear moving portion 300 (front-rear direction: illustrated by arrows in FIG. 4). Has been.

  The moving side fixing portion 320 includes a fixing spring 350 and a fixing spring accommodating portion 321 formed on the moving base member 311. The fixing spring 350 is a plate spring formed of a thin plate-like metal material for a spring, and has a curved portion 351 having a curved shape in one direction at the center, and both end sides thereof are flat plates parallel to each other. A flat plate portion 352 is provided. The fixing spring accommodating portion 321 guides the spring notch portion 321a opened to project the curved portion 351 of the fixing spring 350 from the side surface portions 311c and 311d by a predetermined amount, and the flat plate portion 352 of the fixing spring 350. Thus, a spring accommodating groove 321b for accommodating the fixing spring 350 and a spring escape portion 321c serving as a space for bending when the fixing spring 350 bends as it moves are configured.

  The vertical movement guide part 330 is formed to fix a leg fixing part 220 for fixing a leg main body 210 to be described later at a predetermined position. Specifically, the vertical movement guide part 330 includes a shaft support member guide part 331, and the shaft support member guide part 331 is formed from a substantially central portion of the flat surface portions of the upper surface 311 a and the lower surface 311 b of the movement base member 311. Each of them protrudes in a circular shape in cross section and has a through hole on the inside, and a shaft support member 221 constituting a leg fixing portion 220 described later is fixed inside.

The configuration of the vertical movement unit 200 will be described.
The vertical movement unit 200 includes a leg body 210, a leg fixing unit 220, a stopper 230, an adjustment knob 240, and a grounding unit 250. The leg main body 210 is formed as a shaft-shaped member 211 formed of a metal material having a rod shape and having an external thread portion 211a that is threaded on the outer surface. The stopper 230 is installed at the upper end of the shaft-like member 211 so as to have a disk shape. When the shaft-like member 211 moves downward, the stopper 230 abuts against the upper end surface of the shaft-supporting member guide portion 331, thereby restricting further downward movement of the shaft-like member 211. It is a member to do.

  The adjustment knob 240 and the grounding portion 250 are installed at the lower end portion of the shaft-like member 211. The adjustment knob 240 has a disc shape and has an uneven shape (not shown) formed on the outer peripheral surface. The grounding portion 250 is installed on the lower end surface portion of the adjustment knob 240 and has a spherical shape and is made of a synthetic resin material.

  As described above, the stopper 230, the adjustment knob 240, and the grounding portion 250 are fixed to the shaft-like member 211. Such a shaft-shaped member 211 is fixed by a shaft support member 221 constituting the leg fixing portion 220. The shaft support member 221 has a cylindrical shape and is formed of a metal material having a female screw portion 221a whose inner surface is threaded so as to be engaged with a male screw portion 211a formed on the outer surface of the shaft-like member 211. The The shaft support member 221 is press-fitted and fixed in a through hole formed in the shaft support member guide portion 331 constituting the vertical movement guide portion 330 constituting the front-rear movement portion 300.

  By the vertically moving portion 200 configured as described above, the shaft-like member 211 can move in the vertical direction with respect to the shaft support member 221 by rotating the adjustment knob 240 forward and backward. Further, the shaft-like member 211 is fixed to the shaft support member 221 by screwing at an arbitrary position moved.

The configuration of the movement guide unit 400 will be described.
The movement guide unit 400 is formed on the bottom surface 10 a of the housing 10. The movement guide unit 400 includes a guide unit 410 for guiding the front / rear moving unit 300 to move in the front / rear direction, a guide side fixing unit 420 for moving the front / rear moving unit 300 and fixing it at the moved position, When the moving part 300 moves the movement guide part 400 to the front-back direction, it has the movement control part 430 which controls the movement of the leg main body 210 to an upper direction.

  The guide portion 410 includes a moving base portion upper surface side receiving portion 411 that receives the upper surface 311 a side of the moving base member 311, a moving base portion lower surface side receiving portion 412 that receives the lower surface 311 b side of the moving base member 311, A hole for escaping when the leg main body 210 of the up-and-down moving unit 200 moves in the front-rear direction is formed in the center part of the base-side lower surface side receiving part 412 as the front-rear moving unit 300 moves in the front-rear direction. Leg body escape hole 413.

  Further, in detail, the region where the moving base portion upper surface side receiving portion 411 receives the moving base member 311 is a region illustrated by hatching on the moving base member 311 in FIG. That is, it is a region on the upper surface 311a side of the moving base member 311 and on the side surfaces 311c and 311d side. Accordingly, the moving base portion upper surface side receiving portion 411 includes the moving base portion upper surface side receiving portion 411a that guides the side surface 311c side with the upper surface 311a of the moving base member 311 and the upper surface 311a of the moving base member 311 with the side surface 311d. It is divided into two parts: a moving base part upper surface side receiving part 411b for guiding the side. The moving base portion lower surface side receiving portion 412 for guiding the lower surface 311b side of the moving base member 311 is also configured in the same manner as the moving base portion upper surface side receiving portion 411, and the lower surface 311 b of the moving base member 311 is configured. It is divided into two parts: a moving base portion lower surface side receiving portion 412a for guiding the side surface 311c side, and a moving base portion lower surface side receiving portion 412b for guiding the side surface 311d side with the lower surface 311b of the moving base member 311. Is done.

  With this structure, the shaft support member guide portion 331 of the front / rear moving unit 300 moves with the moving base unit upper surface side receiving unit 411a, the moving base unit upper surface side receiving unit 411b, and the moving base unit lower surface side receiving unit 412a. The region which becomes a gap with the base portion lower surface side receiving portion 412b is moved. Further, the moving base member 311 of the front-rear moving part 300 includes a moving base part upper surface side receiving part 411a and a moving base part lower surface side receiving part 412a, and a moving base part upper surface side receiving part 411b and a moving base part. A region that becomes a gap with the lower surface side receiving portion 412b is moved.

  The guide-side fixing portion 420 is for interacting with the moving-side fixing portion 320 of the front-rear moving portion 300 to fix the front-rear moving portion 300, and is relative to the side surface 311c (311d) side of the moving base member 311. The moving base portion side surface receiving portion 421 formed in this manner, and the recessed portion formed in the moving base portion side surface side receiving portion 421 at a predetermined interval and having substantially the same shape as the outer surface of the curved portion 351 of the fixing spring 350 And a fixing spring receiving portion 422 having the structure. A moving base portion side surface receiving portion 421a and a fixing spring receiving portion 422a are formed relative to the side surface 311c side of the moving base member 311, and the moving base portion side surface side is opposed to the side surface 311d side. A receiving portion 421b and a fixing spring receiving portion 422b are formed.

  The movement restricting portion 430 is configured as a stopper receiving portion 431 and extends along the guide portion 410 in a state where the leg main body 210 is moved downward in the maximum direction (a state where the stopper 230 is in contact with the upper surface of the vertical movement guide portion 330). When moved, the stopper 230 is formed so as to cover the stopper 230 with a certain gap above the stopper 230. In the present embodiment, the stopper receiving portion 431 not only covers the stopper 230 but also covers the front-rear moving portion 300, but may be configured to at least cover the stopper 230.

The operation of the leg moving unit 100 as the leg adjusting mechanism will be described.
As shown in FIGS. 4 to 7, the moving base member 311 of the front-rear moving unit 300 has a moving base unit upper surface side receiving unit 411 a and a moving base unit on the side surfaces 311 c and 311 d of the upper surface 311 a and the lower surface 311 b. Guided in a form sandwiched between the lower surface side receiving portion 412a and the moving base portion upper surface side receiving portion 411b and the moving base portion lower surface side receiving portion 412b, and in the front-rear direction (shown by arrows in FIG. 4). Moving.

  At that time, as shown in FIGS. 4 and 5, each of the fixing springs 350 provided on the moving base member 311 includes the moving base portion side surface receiving portion 421 and the fixing spring receiving portion 422 of the movement guide portion 400. The outer surface side of the curved portion 351 moves while abutting. At this time, when the moving base portion side surface side receiving portion 421 is moved, the bending portion 351 of the fixing spring 350 bends into the spring escape portion 321c (shown by a broken line in FIG. 5), thereby enabling movement. Become. In the fixing spring receiving portion 422, the bending portion 351 is restored from the bent state by the spring force of the fixing spring 350. Actually, it is set to have a slight deflection even in this state. When the curved portion 351 of the fixing spring 350 is positioned at the fixing spring receiving portion 422, the front / rear moving unit 300 is fixed to the movement guide unit 400 (a state in which it cannot move in the front / rear direction).

  In order to move the forward / backward moving unit 300 again from this fixed state, the user applies a force to the shaft-like member 211 that is the leg main body 210 of the up / down moving unit 200 in the direction in which the user wants to move. The bending portion 351 of the spring 350 for bending can be bent and moved over the fixing spring receiving portion 422. The fixing spring receiving portions 422 are formed at equal intervals, and the forward / backward moving portion 300 moves while repeating the movement and fixing when moving. In addition, the force to get over becomes the fixing force between the front-rear moving unit 300 and the movement guide unit 400. This fixing force can be designed by appropriately setting the fixing force in consideration of ease of movement. In addition, the interval between the fixing spring receiving portions 422 can be designed by appropriately setting the interval.

Further, as shown in FIG. 6, since the stopper part 431 is formed in the movement guide part 400, the upward movement of the shaft member 211 is performed while the movement base member 311 is moving in the front-rear direction. Is limited. For this reason, even if the user rotates the adjustment knob 240 and moves the shaft-shaped member 211 upward during the movement, the upper surface of the stopper 230 fixed to the shaft-shaped member 211 contacts the stopper receiving portion 431. After that, it cannot move upward any further.
By such an operation, the forward / backward moving unit 300 moves and is fixed on the movement guide unit 400.

With reference to FIG. 7, the operation of the up-and-down moving unit 200 in a state where the moving base unit 310 has moved to the maximum in the forward direction will be described.
In a state in which the moving base portion 310 is located in the maximum forward direction, the stopper receiving portion 431 is not formed above the stopper 230. Therefore, the shaft-like member 211 constituting the leg main body 210 can move in the vertical direction. By rotating the adjustment knob 240, the user can move upward as indicated by a two-dot chain line, for example. When the projector 1 is installed on the desk surface 900 in this state, the tilt angle can be reduced.

Next, an example of an operation procedure for the front / rear moving unit 300 when the user installs the projector 1 on the desk surface 900 will be described.
First, the user rotates the adjustment knob 240 in the forward direction or the reverse direction in a state where the moving base portion 310 is located at the maximum in the forward direction, whereby the bottom surface 10a of the casing 10 of the shaft-like member 211 is obtained. The amount of projection from the projector is adjusted (the inclination angle of the projector 1 is adjusted) and placed on the desk surface 900, and it is visually confirmed whether an image is projected at an appropriate position on the screen 800. In this state, when an image is projected at an appropriate position on the screen 800, the projector 1 is used as it is because the inclination angle is adjusted appropriately.

  Here, when the projection position is not appropriate, that is, when the projection position is located below the screen 800, the adjustment knob 240 is further rotated to move the shaft-shaped member 211 downward. If the projection position is located below the screen 800 even if the shaft-like member 211 is moved downward in the maximum direction, the user moves the shaft-like member 211 in the rearward direction of the projector 1 this time. A force is applied to the shaft-like member 211 from the front. At this time, by applying a force larger than the fixing force, the shaft-shaped member 211 (front-rear moving unit 300) starts moving backward.

  Then, by sequentially applying a force equal to or greater than the fixing force, the shaft-shaped member 211 is moved to a position that the user considers appropriate, and the position where the shaft-shaped member 211 is fixed by the fixing spring receiving portion 422 and the fixing spring 350. To stop moving. Then, the user installs the projector 1 on the desk surface 900 and visually checks whether an image is projected at an appropriate position on the screen 800. In this state, when an image is projected at an appropriate position on the screen 800, the projector 1 is used as it is because the inclination angle is adjusted appropriately. Here, when an image is not yet projected at an appropriate position on the screen 800, a force is applied to the shaft-shaped member 211 from the front or the rear to move the shaft-shaped member 211 (front-rear moving unit 300) rearward. The above-described operation is repeated by moving in the direction or the front direction, and the position of the shaft-like member 211 in the front-rear direction is adjusted so that an appropriate inclination angle is obtained.

  As a result, the user can make the above-described case where the shaft-shaped member 211 is projected to the lower side of the screen 800 even when the shaft-shaped member 211 is moved downward in the maximum direction while the shaft-shaped member 211 is positioned in the maximum forward direction. By moving the shaft-like member 211 back and forth through the series of operations described above, the tilt angle can be adjusted, and an image can be projected to an appropriate position on the screen 800.

Next, the opening 600 formed in the housing 10 will be described with reference to FIG.
As shown in FIG. 7, the front / rear moving unit 300 (including the up / down moving unit 200) is attached to and detached from the moving guide unit 400 at a portion on the front surface 10 b side of the housing 10 facing the front direction of the movement guide unit 400. A detachable opening 610 constituting the opening 600 to be made is formed. The attaching / detaching opening 610 includes a moving base portion upper surface side receiving portion 411 and a moving base portion lower surface side receiving portion 412 of the moving guide portion 400 that guides the forward / backward moving portion 300 (including the up / down moving portion 200). It is visible inside the body 10 and is opened with a larger diameter than the cross-sectional shape in the left-right direction of the front-rear moving unit 300.

  Further, a cover member 620 having a substantially L-shaped cross section in the vertical direction is installed in the attachment / detachment opening 610. Above the cover member 620, a fixing protrusion 621 formed in a convex shape on the inner surface side is formed. The fixing protrusion 621 engages with the cover member fixing groove 18 formed in the housing 10 relative to the fixing protrusion 621. In addition, the cover member 620 has two screw holes 625 serving as through holes at portions facing the moving base portion lower surface side receiving portion 412 (412a, 412b) on the bottom surface 10a side of the housing 10.

  Note that a screw receiving portion 16 formed in a cylindrical shape and recessed is formed in a portion corresponding to the two screw holes 625 and corresponding to the moving base portion lower surface side receiving portion 412 (412a, 412b). Has been. Further, a screw fixing portion 17 formed of a metal material subjected to threading is press-fitted and fixed to the screw receiving portion 16 on the inner surface of the screw receiving portion 16.

  Fixing screws 630 are respectively installed in the two screw holes 625 formed in the cover member 620. In detail. The two fixing screws 630 are respectively held in the thickness direction of the cover member 620 so as to be fitted to the ring member 631 and to be rotatable in the screw hole 625.

  Next, a method for attaching / detaching (attaching / detaching) the front / rear moving unit 300 to / from the movement guide unit 400 will be described. In the present embodiment, description will be made assuming that human beings attach and detach.

The case where the front-rear moving unit 300 is mounted on the movement guide unit 400 will be described.
First, in the movement guide part 400, the adjustment knob 240 of the shaft-like member 211 is rotated and moved downward to the maximum. Next, the movement base member 311 is gripped, and the side surfaces 311c and 311d of the movement base member 311 are moved from the attachment / detachment opening 610 to the movement base portion upper surface side receiving portion 411a and the movement base portion lower surface side receiving portion. 412a and the moving base portion upper surface side receiving portion 411b and the moving base portion lower surface side receiving portion 412b are inserted into the gap and pressed backward. By such a method, the forward / backward moving unit 300 can be attached to the movement guide unit 400.

Further, after the front and rear moving unit 300 is mounted on the movement guide unit 400, the fixing protrusion 621 of the cover member 620 is engaged with the cover member fixing groove 18 of the housing 10. Next, the tip of the fixing screw 630 held by the cover member 620 is aligned with the screw fixing portion 17, and the fixing screw 630 is rotated and screwed to the screw fixing portion 17 with a jig or the like such as a screwdriver. 620 is fixed to the opening 610 for attachment / detachment. By such a method, the cover member 620 can be fixed to the attachment / detachment opening 610.
With the above method, a series of operations for mounting the front and rear moving unit 300 on the movement guide unit 400 is completed.

The case where the front-rear moving part 300 is removed from the movement guide part 400 will be described.
First, the front-rear moving unit 300 is moved to the maximum in the forward direction. Next, the fixing screw 630 held by the cover member 620 is removed from the screw fixing portion 17 with a tool such as a screwdriver. Accordingly, the cover member 620 can be removed from the attachment / detachment opening 610. Next, the front / rear moving unit 300 is detached from the movement guide unit 400 by inserting a finger into the opening / removal opening 610, grasping the moving base member 311 of the front / rear moving unit 300, and pulling it forward. Can do.

When the front-rear moving unit 300 is continuously used, or when any trouble occurs in the front-rear moving unit 300 due to the projector 1 dropping or the like, maintenance such as adjustment and replacement of the front-rear moving unit 300 is performed. Work is required.
As described above, the maintenance work is performed by removing the front / rear moving unit 300 from the movement guide unit 400 as described above, and then mounting the adjusted front / rear moving unit 300 or the new front / rear movement unit 300 for replacement on the movement guide unit 400 as described above. (Insertion), and then the cover member 620 can be attached to the attachment / detachment opening 610 and fixed.

According to the embodiment described above, the following effects can be obtained.
(1) According to the projector 1 having the leg adjusting mechanism of the present embodiment, the leg moving unit as a leg adjusting mechanism that is provided on the bottom surface 10a of the housing 10 and moves and changes the inclination angle when the projector 1 is installed. 100 includes a vertical movement unit 200, a front-rear movement unit 300, and a movement guide unit 400. The leg moving unit 100 rotates the adjustment knob 240 constituting the up and down moving unit 200 forward and backward at the maximum position in the forward direction, thereby rotating the leg main body 210 (axial member 211) with respect to the housing 10. Can be moved in the vertical direction, and the tilt angle of the projector 1 can be varied. In addition, the movement base unit 310 of the front / rear moving unit 300 is guided by the guide unit 410 of the movement guide unit 400 and is movable in the front / rear direction with respect to the housing 10. As the moving base portion 310 moves in the front-rear direction, the leg main body 210 of the up-and-down moving portion 200 included in the moving base portion 310 is also movable in the front-rear direction with respect to the housing 10. Thereby, the up-and-down moving unit 200 can move in the front-rear direction with respect to the casing 10 to change the tilt angle of the projector 1. Accordingly, the leg moving unit 100 not only changes the tilt angle of the projector 1 by the leg main body 210 of the vertical moving unit 200 but also changes the tilt angle of the projector 1 by moving in the front-rear direction by the front-rear moving unit 300. Therefore, the tilt angle adjustment range can be expanded without increasing the length of the leg body 210.

  (2) According to the projector 1 having the leg adjusting mechanism of the present embodiment, the up and down moving unit 200 includes the leg fixing unit 220 (the shaft support member 221) and fixes the leg main body 210 (the shaft member 211). To do. The front-rear moving unit 300 includes a moving-side fixing unit 320 (fixing spring 350) and interacts with a guide-side fixing unit 420 (fixing spring receiving unit 422) included in the moving guide unit 400, The up-and-down moving unit 200 is fixed in a state of moving in the front-rear direction. Thereby, the leg moving part 100 as a leg adjustment mechanism fixes the leg main body 210 of the up-and-down moving part 200 in the state moved up and down, and fixes the up-and-down moving part 200 in the state moved in the front-rear direction. Therefore, since the leg main body 210 can be fixed in the vertical direction and the front-rear direction, the user can fix the leg main body 210 after adjusting the inclination angle of the leg main body 210 and can stably install the projector 1.

  (3) According to the projector 1 having the leg adjustment mechanism of the present embodiment, by having the movement restricting portion 430 (stopper receiving portion 431), when the vertical moving portion 200 moves in the front-rear direction, the user can make adjustments. Even when the knob 240 is rotated and released from fixing, the stopper 230 installed on the shaft-like member 211 constituting the leg main body 210 abuts on the stopper receiving portion 431, so that Restrict movement in the direction. Accordingly, it is possible to prevent problems such as the leg main body 210 (the shaft-shaped member 211) hitting the structure housed in the main body of the projector 1 and damaging the structure. Further, it is possible to prevent problems such as the user's hand or finger being adjusted being caught between the projector 1 main body and the desk surface 900 as the installation surface.

  (4) According to the projector 1 having the leg adjustment mechanism of the present embodiment, the movement guide unit 400 is provided to move the front / rear movement unit 300 so as to be substantially parallel to the projection direction of the projection unit 90. When the user moves the front-rear moving unit 300 in the front-rear direction, the user can move and adjust the front-to-back movement unit 300 with the projection direction as a reference, so that the user can move by natural operation and adjust the tilt angle well. be able to.

  (5) According to the projector 1 having the leg adjustment mechanism of the present embodiment, the forward / backward moving unit 300 moves in the direction of the part of the housing 10 that is opposite to the center of gravity of the main body of the projector 1. In addition, when the projector 1 is installed with a three-point support structure and one front / rear moving unit 300 is used in the front, the projector 1 can be prevented from tilting, and the stable front / rear moving unit 300 can be prevented. The moving operation can be performed, and the projector 1 can be stably installed.

  (6) According to the projector 1 having the leg adjustment mechanism of the present embodiment, the housing 10 is formed with the opening 600 that allows the vertical movement unit 200 and the forward / backward movement unit 300 to be attached to and detached from the movement guide unit 400. Has been. As a result, when the vertical moving unit 200 and the front and rear moving unit 300 need to be adjusted or replaced due to deterioration of the vertical moving unit 200 and the front and rear moving unit 300 with the passage of time or dropping of the projector 1, it is formed on the housing 10. Using the opening 600, the vertical moving unit 200 and the front / rear moving unit 300 are attached and detached for adjustment or replacement. Accordingly, it is possible to improve the maintainability of the vertical movement unit 200 and the front / rear movement unit 300.

  (7) According to the projector 1 having the leg adjustment mechanism of the present embodiment, the cover member 620 is installed in the detachable opening 610 that forms the opening 600. As a result, the attachment / detachment opening 610 can be closed, and foreign matter and the like from the outside of the projector 1 through the attachment / detachment opening 610 and a user's hand being caught by the attachment / detachment opening 610 can be prevented. Therefore, safety during maintenance and use is improved. In addition, since the cover member 620 can prevent the inside of the projector 1 body from being visually recognized through the opening / removal opening 610, the appearance of the projector 1 can be favorably maintained.

  The present invention is not limited to the above-described embodiments, and various changes and improvements can be added without departing from the scope of the present invention. A modification will be described below.

  (Modification 1) In the above embodiment, the movement restricting portion 430 restricts the upward movement of the leg body 210 when the vertically moving portion 200 moves in the front-rear direction. However, when the vertical movement unit 200 moves in the front-rear direction, even when the leg main body 210 is moved upward, the vertical movement unit 200 is accommodated so as not to contact the structure accommodated inside the projector 1 main body. It is good also as a structure which does not have the movement control part 430. In that case, even when the vertical movement unit 200 moves in the front-rear direction, the leg main body 210 can be moved in the vertical direction at the same time, and the inclination angle of the projector 1 can be finely adjusted. The degree of freedom of adjustment can be expanded.

  (Modification 2) In the embodiment, the front and rear moving unit 300 is fixed to the movement guide unit 400 by the fixing spring 350 of the moving side fixing unit 320 included in the front and rear moving unit 300 and the guide side included in the movement guide unit 400. This is based on the interaction between the fixing portion 420 and the fixing spring receiving portion 422. However, the present invention is not limited to this, and various fixing structures such as rack gear meshing can be employed.

  (Modification 3) In the above-described embodiment, the inner surface of the shaft support member 221 of the leg fixing unit 220 and the outer surface of the shaft support member 221 of the leg body 210 are threaded to each other. The shaft-like member 211 is fixed by screwing. However, the present invention is not limited to this, and various fixing structures such as mutual meshing that are not screwed can be employed.

  (Modification 4) In the above-described embodiment, the support structure of the projector 1 to the desk top surface 900 uses a three-point support structure, and the two near the corners on the rear side of the bottom surface 10a of the casing 10 Fixed legs 15 (15a, 15b) are installed in the vicinity of one corner, and a leg moving unit 100 as one leg adjusting mechanism is installed on the front side. However, the present invention is not limited to this, and two leg moving units 100 may be installed on the front side, and one fixed leg 15 may be installed on the central part on the rear side. In any case, in order to effectively change the tilt angle of the projector 1, the leg moving unit 100 as the leg adjusting mechanism of the present invention can be used in an optimum quantity at an optimum position.

  (Modification 5) The projector 1 in the above embodiment uses three light valves 71 (high-temperature polysilicon TFTs) as the light modulation unit 70 constituting the optical system 5. However, the present invention is not limited to this, and the present invention can also be applied to a projector using only one light valve 71, a projector using two light valves 71, or four or more projectors.

  (Modification 6) The projector 1 in the above embodiment uses a light valve 71 as the light modulation unit 70 constituting the optical system 5. However, the present invention is not limited to this, and in general, any device that modulates incident light according to image information may be used, and a micromirror light modulator or the like may be used. For example, DMD (Digital Micromirror Device) (trademark of TI, USA) can be used as the micromirror type light modulation device.

  (Modification 7) The projector 1 in the above embodiment uses a high-temperature polysilicon TFT which is a transmissive liquid crystal system as the light modulation unit 70 constituting the optical system 5. However, the present invention is not limited to this, and an optical system using an LCOS (Liquid Crystal On Silicon) type liquid crystal panel which is a reflection type liquid crystal type may be used.

  (Modification 8) The projector 1 in the above embodiment separates the light emitted from one light source device 50 into each color light by the color separation optical system 62. However, the present invention is not limited to this, and a plurality of light source devices that emit light of each color may be used. For example, a red LED (light emitting diode) that emits red light, which is a solid light source, a green LED that emits green light, or a blue LED that emits blue light may be used. An LD (laser diode) can also be used.

  (Modification 9) In the above-described embodiment, the leg adjustment mechanism of the present invention is applied to the projector 1, but the present invention is not limited to this, and the installation of the leg adjustment mechanism of the present invention in the housing of the electronic device The electronic device can be set to an optimum inclination angle. Thereby, when the electronic device has a display unit, the visibility of the display unit for the user can be improved, and when the electronic device has the operation unit, the operability of the operation unit for the user is improved. Can be improved.

  Although the best mode for carrying out the present invention has been disclosed in the above description, the present invention is not limited to this. That is, the present invention mainly illustrates and describes a specific embodiment, but without departing from the gist of the present invention, a detailed component member or a component member is described with respect to the above-described embodiment. Various modifications (changes and improvements) can be made by those skilled in the art in terms of shape, material, quantity, and the like. Accordingly, the present invention also includes a case where a person skilled in the art performs various modifications in the detailed constituent members and the shapes, materials, and quantities of the constituent members.

FIG. 2 is a schematic diagram illustrating a configuration of an optical system of a projector as an electronic apparatus according to an embodiment of the invention. It is explanatory drawing which shows the inclination state when the leg moving part as a leg adjustment mechanism is applied to a projector, (a) is the up-and-down in the state which moved the front-back moving part which comprises a leg moving part to the maximum to the front The side view of a projector when the leg main body in a moving part is extended to the maximum, (b) is a schematic plan view seen from the bottom side of the projector in the state of (a). It is explanatory drawing which shows the inclination state when the leg moving part as a leg adjustment mechanism is applied to a projector, (a) is the side surface of the projector in the state which moved the front-back moving part which comprises a leg moving part back. FIG. 4B is a schematic plan view viewed from the bottom side of the projector in the state of FIG. The schematic perspective view of the leg moving part as a leg adjustment mechanism. The schematic plan view of the leg moving part as a leg adjustment mechanism. The cross-sectional view of the left-right direction of the leg moving part in the state which the front-back moving part moved to the front-back direction. FIG. 5 is a schematic cross-sectional view in the front-rear direction in a state where the front-rear moving unit has moved maximum in the forward direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Projector, 5 ... Optical system, 10 ... Housing | casing, 10a ... Bottom surface, 10b ... Front surface, 15 ... Fixed leg, 50 ... Light source device as a light source, 70 ... Light modulation part, 90 ... Projection part, 100 ... Leg movement , 200 ... vertical movement part, 210 ... leg main body, 211 ... shaft-like member, 220 ... leg fixing part, 221 ... shaft support member, 230 ... stopper, 240 ... adjustment knob, 250 ... grounding part, 300 ... back and forth movement 310, moving base portion, 311 ... moving base member, 320 ... moving side fixing portion, 321 ... fixing spring accommodating portion, 330 ... vertical movement guide portion, 331 ... shaft support member guiding portion, 350 ... fixing portion Spring, 400 ... Movement guide part, 410 ... Guide part, 411 ... Moving base part upper surface side receiving part, 412 ... Moving base part lower surface side receiving part, 413 ... Leg body escape hole part, 420 ... Guide side fixing part, 430 ... Movement restriction part, 43 ... stopper receiving portion, 600 ... opening, 610 ... removable opening, 620 ... cover member, 800 ... screen, 900 ... desk surface.

Claims (6)

A leg adjusting mechanism of an electronic device having a casing constituting an exterior,
The casing is provided with a leg moving unit that moves and changes an inclination angle in the installation of the electronic device,
The leg moving part includes a leg main body configured to have a leg main body that is movable in the vertical direction with respect to the casing, and the vertical moving part is movable in the front-rear direction with respect to the casing. A leg adjusting mechanism, comprising: a front / rear moving unit that performs a movement guide unit that is provided in the housing and that guides the movement of the front / rear moving unit. The leg adjusting mechanism according to claim 1,
The up-and-down moving part has a leg fixing part for fixing the leg main body,
The front-rear moving unit has a moving side fixing unit that fixes the vertical moving unit in a state of moving in the front-rear direction,
The movement guide unit has a guide side fixing unit that interacts with the moving side fixing unit of the front / rear moving unit and fixes the vertical moving unit in a state of moving in the front / rear direction. mechanism. The leg adjusting mechanism according to claim 2,
The leg adjusting mechanism, wherein the movement guide part further includes a movement restricting part for restricting the upward movement of the leg main body of the vertical moving part. The leg adjusting mechanism according to any one of claims 1 to 3,
The said back-and-forth moving part moves to the site | part direction of the said housing | casing facing the gravity center site | part of the said electronic device main body, The leg adjustment mechanism characterized by the above-mentioned. The leg adjusting mechanism according to any one of claims 1 to 4,
The leg adjustment mechanism according to claim 1, wherein the casing is formed with an opening that allows the vertical movement unit and the front / rear movement unit to be attached to and detached from the movement guide unit. The leg adjusting mechanism according to any one of claims 1 to 5,
A light modulation unit that modulates the light beam emitted from the light source according to image information;
A projector that projects a light beam modulated by the light modulator.

Images