JP2008113188A - Rear projection television device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rear projection television device capable of simply conducting mounting and demounting works for an open-close cover opening and closing an opening for a lamp housing chamber. <P>SOLUTION: A piece section 43 for a sliding operation is slid from a first place to a second place against the urging force of an urging member 46 for a sliding member by a finger (referring to Fig.8 (B)). An operating piece section 3,004 is displaced downwards against the urging force of the urging member 40 for an engaging pawl by another finger as the state is left as it is kept, and the engaging pawl 38 is displaced from a locking place to a lock-releasing place (referring to Fig.8 (C)), and the upper edge of the open-close cover 30 is moved outwards and the opening 28 is opened. An engaging piece 34 for the open-close cover 30 is removed from an engaging groove 1,201 for the opening 28, and the open-close cover 30 is removed from the opening 28. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a rear projection television apparatus.

There is a rear projection television device that generates an image projection light beam from a light beam emitted from a lamp and projects the light beam onto the back surface of a rear projection screen to form an image.
In this type of rear projection television apparatus, in order to obtain a clear image, a high output device such as an ultra high pressure lamp is used, and the lamp tends to be hot.
Therefore, in the rear projection television apparatus, a lamp housing chamber is provided in the housing, the lamp is housed in the lamp housing chamber, the opening of the lamp housing chamber is closed with an opening / closing lid, and the opening / closing lid is not prepared carelessly. In order not to be removed, a locking mechanism is provided that holds the opening closed with an opening / closing lid (see Patent Document 1).
JP 7-65609 A

However, in the conventional lock mechanism, if the dedicated tool is not used, the closed state of the opening by the opening / closing lid cannot be released, and there is a problem that it takes time to remove the opening / closing lid when replacing the lamp. .
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a rear projection television apparatus that can easily attach and remove an opening / closing lid that opens and closes an opening of a lamp housing chamber.

  In order to achieve the above object, the present invention provides a housing constituting an exterior, a lamp housing chamber provided in the housing, an opening / closing lid for opening and closing an opening of the lamp housing chamber, and the opening / closing lid. A rear projection television apparatus including a lock mechanism that holds the opening in a closed state, wherein the lock mechanism is provided on the opening / closing lid and is locked to the casing in the closed state. A locking claw that is movable between a lock position that holds the lock and a lock release position that is released from the housing and releases the closed state, and can be moved from the lock position to the lock release position by a finger. A latching claw biasing member that biases the latching claw from the unlocking position toward the locking position, a first position in a direction intersecting the movement direction of the locking claw, and a second Between the position of The movable claw can be brought into contact with the engaging claw that is provided on the opening / closing lid and is located at the locking position, and the engaging claw is moved from the locked position to the unlocked position by contacting the engaging claw. A slide member for blocking, and a bias member for a slide member for biasing the slide member from the second position toward the first position, wherein the slide member is located at the first position. In the state, the slide member comes into contact with the locking claw located at the lock position, and the slide member is detached from the locking claw while the slide member is located at the second position. Is allowed to move from the locked position to the unlocked position.

  According to the present invention, the opening / closing lid can be opened and closed by two operations: an operation of moving the locking claw from the lock position to the unlock position, and an operation of moving the slide member from the first position to the second position. Therefore, the opening / closing lid can be opened / closed without using a tool, and the attaching / detaching operation of the opening / closing lid can be easily performed.

Embodiments of a rear projection television apparatus according to the present invention will be described below in detail with reference to the drawings.
1 and 2 are perspective views of a rear projection television apparatus according to the present embodiment, and FIG. 3 is a side view thereof.

First, a schematic configuration of the rear projection television apparatus 10 will be described.
As shown in FIGS. 1 and 3, the rear projection television apparatus 10 includes a casing 12 that constitutes an exterior. The casing 12 includes a projector unit 14, a reflection mirror 16, and a rear projection screen 18. In addition, a speaker 20 and an electrical component 22 (see FIG. 4) are provided.
The projector unit 14 emits an image projection light beam.
The reflection mirror 16 has a reflection surface 16A, is disposed above the projector unit 14 and behind the screen 18, and reflects the image projection light beam emitted from the projector unit 14 toward the back surface of the screen 18 by the reflection surface 16A. It is.
The screen 18 displays a television image on the front surface by projecting the image projection light beam reflected by the reflecting mirror 16 on the back surface.
The screen 18 includes, for example, a Fresnel lens disposed on the image source side and a lenticular screen disposed on the rear stage of the Fresnel lens. In addition to this, another screen may be provided for the purpose of reducing contrast deterioration due to outside light and protecting the lenticular screen.
The speaker 20 is incorporated in a portion near the left and right sides of the lower part of the front surface of the housing 12, and is provided so as to emit sound through an opening provided on the front surface of the housing 12.

FIG. 4 is a block diagram showing the configuration of the projector unit 14 and the electrical unit 22.
The projector unit 14 includes a light source unit 14A, an illumination optical unit 14B, a separation unit 14C, an image forming unit 14D, a projection unit 14E, and the like.
The light source unit 14 </ b> A includes a lamp 24 as a light source that emits light, and a power source that drives the lamp 24.
As the lamp 24, various conventionally known lamps such as an ultra high pressure lamp that emits white light are used.

The illumination optical unit 14B guides the white light emitted from the lamp 24 to the separation unit 14C as parallel light.
The illumination optical unit 14B includes, for example, an optical filter that cuts off ultraviolet rays and infrared rays, a fly-eye lens, a condenser lens, and the like.
The separation unit 14C separates the light beam (white light) guided from the illumination optical unit 14B into three color light beams of red, green, and blue.
The separation unit 14C includes, for example, a plurality of dichroic mirrors.

The image forming unit 14D includes three image display units and a combining unit.
The three image display units display image information when a video signal is supplied from a video signal processing unit 22B of the electrical unit 22, which will be described later.
That is, the three image display units are configured by, for example, three transmissive liquid crystal display devices that display image information of three colors of red, green, and blue, and the light beams of the respective colors guided from the separation unit 14C are respectively The light beam modulated by the image information is emitted by transmitting through the liquid crystal display device.
The image display unit may be a reflective liquid crystal display device as well as a transmissive liquid crystal display device, and various conventionally known image display devices can be used. The image display unit is not limited to the one using the liquid crystal display device, and various types of conventionally known methods can be employed.
The combining unit combines the modulated light beams emitted from the liquid crystal display devices to generate one image projection light beam and guides it to the projection unit 14E. For example, the combining unit includes a cross dichroic prism. Yes.

The projection unit 14E receives the image projection light beam guided from the image forming unit 14D and irradiates the reflection mirror 16.
The projection unit 14E includes, for example, an incident lens that receives the image projection light beam, a mirror that reflects the image projection light beam emitted from the incident lens and changes a traveling direction, and the image projection guided by the mirror. A projection lens for projecting the light beam onto the reflection mirror 16 is included.

The electrical unit 22 includes a receiving unit 22A, a video signal processing unit 22B, an audio signal processing unit 22C, a control unit 22D, an operation unit 22E, and the like.
The receiving unit 22A performs channel selection based on a command from the control unit 22D, demodulates the television signal received from the antenna, separates it into a video signal and an audio signal, and outputs them.
The video signal processing unit 22B performs necessary signal processing on the video signal, generates image information of three colors of red, green, and blue, and outputs a video signal (drive signal) corresponding to each of the image information. Each of the three image display devices is supplied.
The audio signal processing unit 22C performs necessary signal processing and amplification processing on the audio signal, generates an audio signal, and supplies the audio signal to the speaker 20. As a result, sound is generated from the speaker 20.
The operation unit 22E is for performing various operations and settings related to viewing of the broadcast by the rear projection television apparatus 10, and includes, for example, a channel selection switch, a volume adjustment switch, an input changeover switch, and the like.

The control unit 22D controls the reception unit 22A, the video signal processing unit 22B, and the audio signal processing unit 22C based on the operation of the operation unit 22E.
Although not shown, an external input terminal for inputting a video signal and an audio signal supplied from an external device such as a DVD player or a video deck, and a video signal and an audio signal supplied to these external input terminals are converted into a video signal. An input switching circuit for switching and inputting to the processing unit 22B and the audio signal processing unit 22C is provided.
The video signal and the audio signal supplied to the external input terminal by the operation of the operation unit 22E are supplied to the video signal processing unit 22B and the audio signal processing unit 22C via the input switching circuit.

5 is a plan view of the opening / closing lid 30, FIG. 6 is a perspective view of the opening / closing lid 30 as viewed from the back, FIG. 7 is a cross-sectional view taken along line AA in FIG. 5, and FIGS. FIG. 11 is an operation explanatory diagram of the mechanism 32.
9A and 9B are perspective views of the slide member 42, FIG. 10A is a plan view of the slide member 42, FIG. 9B is a view taken along the arrow B in FIG. 9A, and FIG. (D) is a view from the arrow D of (A), (E) is a view from the arrow E of (A), and (F) is a view from the arrow F of (E).

As shown in FIGS. 1 to 3, a lamp housing chamber 26 that houses a lamp 24 is provided at the lower part of the right side surface of the housing 12, and an opening 28 of the lamp housing chamber 26 is opened and closed by an opening / closing lid 30. A lock mechanism 32 that holds the opening 28 closed by the lid 30 is provided.
In the present embodiment, the opening / closing lid 30 is detachably attached to the opening 28. That is, as shown in FIGS. 5 and 6, the locking mechanism 32 is provided at a location near the edge of the upper portion of the opening / closing lid 30, and the locking groove 1201 ( As shown in FIGS. 1, 5, and 6, it is related to the lower edge portion of the opening / closing lid 30 that faces the portion near the edge of the opening / closing lid 30 provided with the lock mechanism 32. A locking piece 34 that engages and disengages with the stop groove 1201 is projected, and the locking piece 34 is engaged and disengaged with the locking groove 1201 when the opening 28 is opened and closed by the opening / closing lid 30.
In the present embodiment, as shown in FIG. 12, a second opening / closing lid 36 is provided at a location of the lamp housing chamber 26 located inside the opening / closing lid 30, and the opening / closing lid is provided double. Yes.
As shown in FIGS. 5 and 6, the open / close lid 30 has a back surface 30 </ b> A that faces the lamp housing chamber 26 and a front surface 30 </ b> B that faces the outside.
The opening / closing lid 30 is made of synthetic resin, and in this embodiment, PS (polystyrene), ABS resin, or a mixture of PS and ABS resin can be used.

As shown in FIGS. 5 and 6, the lock mechanism 32 includes a locking claw 38, a locking claw biasing member 40, a slide member 42, and a slide member biasing member 46.
The locking claw 38 is provided on the opening / closing lid 30 and is locked to the housing 12 in the closed state (locked to the back surface 30A on the upper edge of the opening 28) as shown in FIG. It can be moved between the position and the unlocking position where it is removed from the housing 12 and the holding of the closed state is released, and the movement from the locked position to the unlocked position can be operated by a finger.
In the present embodiment, as shown in FIG. 5, a notch 48 is provided near the upper edge of the opening / closing lid 30, and the notch 48 extends from the bottom side 4802 to the edge from both sides of the bottom side 4802. It is formed in an open shape toward the upper edge of the opening / closing lid 30 by the side edge 4804 that extends.
As shown in FIG. 7, a curved piece 3002 that elastically deforms integrally with the open / close lid 30 protrudes from the bottom 4802 on the back surface 30 </ b> A of the open / close lid 30, and the locking claw 38 is the tip of the curved piece 3002. Are provided integrally with the curved piece 3002.
The locking claw 38 includes an operation piece portion 3004 that is operated by a finger to move from the lock position to the lock release position, and a claw portion 3006 that protrudes from the operation piece portion 3004 and engages the housing 12 in the closed state. have. In the present embodiment, as shown in FIG. 7, the claw portion 3006 is engaged with the back surface 30 </ b> A of the upper edge of the opening 28 so that the closed state of the opening / closing lid 30 is securely held.
The locking claw 38 is located in the notch 48, and the movement of the locking claw 38 between the locked position and the unlocked position is performed by elastic deformation of the curved piece 3002.

  As shown in FIG. 7, the latching claw biasing member 40 biases the latching claw 38 from the unlocked position toward the lock position. In this embodiment, the latching claw biasing member 40 is biased. The member 40 is configured by a curved piece 3002.

The slide member 42 can move between a first position (FIG. 8A) and a second position (FIGS. 8B and 8C) in a direction crossing the moving direction of the locking claw 38. The opening / closing lid 30 is provided. In the present embodiment, the locking claw 38 swings in the vertical direction, and the slide member 42 linearly moves in the front-rear direction.
The slide member 42 is made of a synthetic resin, and in this embodiment, POM (polyacetal) having excellent elasticity and a small friction coefficient can be employed.
As shown in FIG. 7, the slide member 42 has a front surface 42 </ b> A facing the outside and a back surface 42 </ b> B facing the open / close lid 30 in a state of being incorporated in the open / close lid 30.
The slide member 42 is provided in the opening / closing lid 30 so as to be movable between a first position and a second position in a direction intersecting the moving direction of the locking claw 38 and contacts the locking claw 38 positioned at the lock position. The movement of the locking claw 38 from the locked position to the unlocked position is prevented by contacting the locking claw 38.
More specifically, as shown in FIGS. 8 and 9, the slide member 42 is openable / closable so as to be movable between the first position and the second position in a direction crossing the moving direction of the locking claw 38. 30, the slide operation piece 43 incorporated in the slide 30, and can be brought into contact with the lock claw 38 so as to contact the lock claw 38 that protrudes from the slide operation piece 43 toward the lock claw 38 and is positioned at the lock position. A locking projection 44 that prevents the locking claw 38 from moving from the locked position to the unlocked position by being in contact therewith is provided.
The slide member biasing member 46 biases the slide member 42 from the second position toward the first position.
In the present embodiment, as shown in FIGS. 7 and 8, the slide member 42 is disposed in the guide recess 3010 formed to extend on the surface 30 </ b> B of the opening / closing lid 30, so that the first position and the second position are set. It is incorporated in the opening / closing lid 30 so as to be movable between positions.
The guide recess 3010 is formed to extend in parallel with the bottom side 4802 of the notch 48 at the location of the opening / closing lid 30 near the lower part of the notch 48.

More specifically, as shown in FIGS. 9 and 10, an uneven portion 4302 is provided on the surface of the slide operation piece 43 so as to facilitate the slide operation.
Further, the back surface 42B of the slide operation piece 43 is brought into contact with the bottom surface of the guide recess 3010, and a pair of upper and lower claws 4202 protruding from the back surface 42B are formed on the bottom surface of the guide recess 3010 as shown in FIG. The guide groove 3012 is engaged with the upper and lower edge portions so as to be linearly movable.
The locking projection 44 protrudes from the end of the slide operation piece 43 near the second position.
Further, a spring piece portion 4210 that can be elastically deformed integrally with the slide member 42 protrudes from the back surface 42B of the slide operation piece portion 43.
As shown in FIGS. 6 and 7, the spring piece portion 4210 protrudes from the back surface 30 </ b> A of the opening / closing lid 30 through the guide groove 3012 (notch) on the bottom surface of the guide recess 3010.
Then, the spring piece is locked to the back surface 30A of the opening / closing lid 30 with the spring piece portion 4210 as shown in FIG. 6, and the slide member 42 is located at the second position rather than the state at the first position. A locking wall 3020 is provided that elastically deforms the portion 4210 more greatly.
In the present embodiment, the urging member 46 for the slide member is constituted by a spring piece portion 4210.

As shown in FIG. 8A, in a state where the slide member 42 is positioned at the first position, the locking projection 44 contacts the locking claw 38 positioned at the lock position.
Further, as shown in FIG. 8B, in a state where the slide member 42 is located at the second position, the locking projection 44 is detached from the locking claw 38 and the locking claw 38 is moved from the locked position to the unlocked position. Is allowed to move.
FIG. 8C shows a state in which the slide member 42 is located at the second position and the locking claw 38 is located at the unlocking position.

Next, taking the replacement work of the lamp 24 as an example, attachment and removal of the opening / closing lid 30 of the present embodiment will be described.
FIGS. 11 to 16 are explanatory views of the replacement work of the lamp 24.
First, as shown in FIG. 11, the slide operation piece 43 is slid from the first position to the second position against the urging force of the sliding member urging member 46 by a finger (FIG. 8B). (Refer to Fig. 2) While maintaining this state, the operation piece 3004 is displaced downward against the biasing force of the latching claw biasing member 40 with another finger, and the latching claw 38 is unlocked from the locked position. The position is displaced (see FIG. 8C), and the upper edge of the opening / closing lid 30 is moved outward to open the opening 28. Then, the locking piece 34 of the opening / closing lid 30 is removed from the locking groove 1201 of the opening 28, and the opening / closing lid 30 is removed from the opening 28.
As shown in FIG. 12, the attachment / detachment of the second opening / closing lid 36 to / from the lamp housing chamber 26 is performed by rotating a lever 36 </ b> A provided on the second opening / closing lid 36. Accordingly, the lever 36A is operated and removed from the lamp housing chamber 26.
As shown in FIG. 13, the lamp 24 is housed in the lamp housing chamber 26 while being held by the lamp holder 25. Therefore, after taking out the lamp holder 25 from the lamp housing chamber 26, the lamp 24 is removed from the lamp holder 25 and a new lamp 24 is mounted on the lamp holder 25.
Then, as shown in FIG. 14, the lamp holder 25 is housed in the lamp housing chamber 26, and as shown in FIG. 15, the lever 36A is rotated to mount the second opening / closing lid 36 on the lamp housing chamber 26.

Next, as shown in FIG. 16, the locking piece 34 of the opening / closing lid 30 is locked in the locking groove 1201 of the opening 28, and the upper edge of the opening / closing lid 30 is brought close to the upper edge of the opening 28.
At that time, the slide operation piece 43 is slid from the first position to the second position against the urging force of the slidable member urging member 46 by a finger (see FIG. 8B), and the state is changed. The operation piece 3004 is displaced from the locked position to the unlocked position against the urging force of the latching claw urging member 40 with another finger while maintaining it (see FIG. 8C). The opening / closing lid 30 is aligned with the opening 28.
If the opening 28 is closed by the opening / closing lid 30, the finger is removed from the operation piece 3004. Thereby, the latching claw 38 is moved from the unlocked position to the locked position by the biasing force of the latching claw biasing member 40.
Next, by removing the finger from the slide operation piece 43, the slide member 42 is returned from the second position to the first position by the biasing force of the slide member biasing member 46.
Thereby, the closed state of the opening / closing lid 30 is formed.

As described above, according to the present embodiment, the operation of moving the locking claw 38 from the locked position to the unlocked position and the operation of moving the slide member 42 from the first position to the second position are two. The opening / closing lid 30 can be opened / closed by one operation, and therefore the attaching / detaching operation of the opening / closing lid 30 can be performed more easily than when the opening / closing lid 30 is opened / closed using a conventional tool.
In addition, since the opening / closing lid 30 is opened and closed by two operations in different directions at different locations, the opening / closing lid 30 is not inadvertently opened, and the closed state of the opening / closing lid 30 can be reliably maintained. It is advantageous.
In the present embodiment, since the latching claw biasing member 40 is provided integrally with the latching claw 38, the number of parts is larger than when the latching claw biasing member 40 is provided separately from the latching claw 38. This is advantageous in reducing costs and reducing costs.
In the present embodiment, since the slide member biasing member 46 is provided integrally with the slide member 42, the number of parts can be reduced and the cost can be reduced as compared with the case where the slide member biasing member 46 is provided separately from the slide member 42. It is advantageous in going down.

  In the present embodiment, the case where the opening / closing lid 30 is detachably provided to the housing 12 has been described. However, the present invention applies to the case where the opening / closing lid 30 is swingably connected to the housing 12. Of course also applies.

It is a perspective view of the rear projection television apparatus of the present embodiment. It is a perspective view of the rear projection television apparatus of the present embodiment. It is a side view of the rear projection television apparatus of this Embodiment. FIG. 2 is a block diagram showing the configuration of a projector unit 14 and an electrical unit 22. 3 is a plan view of the opening / closing lid 30. FIG. It is the perspective view which looked at the opening-and-closing lid 30 from the back. It is AA sectional view taken on the line of FIG. (A), (B), (C) is operation | movement explanatory drawing of the locking mechanism 32. FIG. (A), (B) is a perspective view of the slide member 42. FIG. (A) is a plan view of the slide member 42, (B) is a view from the arrow B of (A), (C) is a view from the arrow C in (A), (D) is a view from the arrow D in (A), (E) is an E arrow view of (A), (F) is an F arrow view of (E). It is explanatory drawing of the replacement | exchange operation | work of the lamp | ramp 24. FIG. It is explanatory drawing of the replacement | exchange operation | work of the lamp | ramp 24. FIG. It is explanatory drawing of the replacement | exchange operation | work of the lamp | ramp 24. FIG. It is explanatory drawing of the replacement | exchange operation | work of the lamp | ramp 24. FIG. It is explanatory drawing of the replacement | exchange operation | work of the lamp | ramp 24. FIG. It is explanatory drawing of the replacement | exchange operation | work of the lamp | ramp 24. FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Rear projection television apparatus, 12 ... Case, 26 ... Lamp storage chamber, 28 ... Opening, 30 ... Opening / closing lid, 32 ... Lock mechanism, 38 ... Locking claw, 40 ... Engagement Claw biasing member, 42... Slide member, 46 ....... slide member bias member.

Claims (12)

A housing constituting an exterior; a lamp housing chamber provided in the housing; an opening / closing lid for opening / closing the opening of the lamp housing chamber; and a lock mechanism for holding the opening closed by the opening / closing lid; A rear projection television apparatus comprising:
The locking mechanism is
It is provided on the opening / closing lid, and is movable between a lock position that is locked to the housing in the closed state and holds the closed state, and a lock release position that is released from the housing and releases the hold of the closed state. And a locking claw operable to move from the locked position to the unlocked position with a finger,
A latching claw biasing member that biases the latching claw from the unlock position toward the lock position;
The locking claw is provided on the opening / closing lid so as to be movable between a first position and a second position in a direction intersecting with the moving direction of the locking claw, and can contact the locking claw positioned at the lock position. A sliding member that prevents movement of the locking claw from the locked position to the unlocked position by contacting the locking claw;
A slide member biasing member for biasing the slide member from the second position toward the first position;
With the slide member positioned at the first position, the slide member abuts on the locking claw positioned at the lock position,
With the slide member positioned at the second position, the slide member is disengaged from the locking claw and allows the locking claw to move from the locked position to the unlocked position.
The rear projection television apparatus characterized by the above-mentioned. The opening / closing lid is made of synthetic resin,
The open / close lid has a back surface facing the lamp housing chamber and a front surface facing the outside in the closed state,
A curved piece that can be elastically deformed integrally with the opening / closing lid protrudes from the back surface of the opening / closing lid,
The locking claw is provided integrally with the curved piece at the tip of the curved piece,
The movement of the locking claw between the locked position and the unlocked position is performed by elastic deformation of the curved piece portion,
The latching claw biasing member is constituted by the curved piece portion.
The rear projection television apparatus according to claim 1. The opening / closing lid is made of synthetic resin,
The open / close lid has a back surface facing the lamp housing chamber and a front surface facing the outside in the closed state,
A notch is provided at a location near the edge of the opening / closing lid,
The notch is formed in an open shape toward the edge by a base and side edges extending from both sides of the base toward the edge,
A curved piece that can be elastically deformed integrally with the opening / closing lid is projected from the bottom of the opening / closing lid,
The locking claw is provided integrally with the curved piece at the tip of the curved piece,
The locking claw is located in the notch,
The movement of the locking claw between the locked position and the unlocked position is performed by elastic deformation of the curved piece portion,
The latching claw biasing member is constituted by the curved piece portion.
The rear projection television apparatus according to claim 1. The opening / closing lid is made of synthetic resin,
The open / close lid has a back surface facing the lamp housing chamber and a front surface facing the outside in the closed state,
A notch is provided at a location near the edge of the opening / closing lid,
The notch is formed in an open shape toward the edge by a base and side edges extending from both sides of the base toward the edge,
A curved piece that can be elastically deformed integrally with the opening / closing lid is projected from the bottom of the opening / closing lid,
The locking claw is provided integrally with the curved piece at the tip of the curved piece,
The locking claw includes an operation piece portion that is operated by a finger to move from the lock position to the unlock position, and a claw portion that protrudes from the operation piece portion and engages the housing in the closed state. Have
The locking claw is located in the notch,
The movement of the locking claw between the locked position and the unlocked position is performed by elastic deformation of the curved piece portion,
The latching claw biasing member is constituted by the curved piece portion.
The rear projection television apparatus according to claim 1. The slide member is made of synthetic resin,
The open / close lid has a back surface facing the lamp housing chamber and a front surface facing the outside in the closed state,
The slide member is incorporated in the opening / closing lid so as to be movable between the first position and the second position;
The slide member has a front surface facing the outside in a state incorporated in the open / close lid and a back surface facing the open / close lid,
A spring piece that can be elastically deformed integrally with the slide member protrudes from the back surface of the slide member,
The spring piece is engaged with the spring piece on the back surface of the opening / closing lid, and the spring piece is more elastically deformed in the state where the slide member is located in the second position than in the state where the slide member is located in the first position. A locking wall is provided,
The sliding member urging member is constituted by the spring piece portion.
The rear projection television apparatus according to claim 1. The slide member includes a slide operation piece incorporated in the opening / closing lid so as to be movable between a first position and a second position in a direction crossing a moving direction of the locking claw, and the slide operation. A locking projection that projects from the piece to the locking claw and can contact the locking claw positioned at the locking position;
Prevention of movement of the locking claw from the locked position to the unlocked position in contact with the locking claw is performed by the locking projection.
In a state where the slide member is located at the first position, the engagement convex portion abuts on the engagement claw located at the lock position,
In a state where the slide member is located at the second position, the latching convex portion is disengaged from the latching claw and allows the latching claw to move from the locked position to the unlocked position.
The rear projection television apparatus according to claim 1. The slide member is made of synthetic resin,
The open / close lid has a back surface facing the lamp housing chamber and a front surface facing the outside in the closed state,
The slide member is incorporated in the opening / closing lid so as to be movable between the first position and the second position by being disposed in a guide recess formed to extend on the surface of the opening / closing lid,
The slide member has a front surface facing the outside in a state incorporated in the open / close lid and a back surface facing the open / close lid,
A spring piece that can be elastically deformed integrally with the slide member protrudes from the back surface of the slide member,
The spring piece portion protrudes from the bottom surface of the opening / closing lid through a notch on the bottom surface of the guide recess,
The spring piece is engaged with the spring piece on the back surface of the opening / closing lid, and the spring piece is more elastically deformed in the state where the slide member is located in the second position than in the state where the slide member is located in the first position. A locking wall is provided,
The sliding member urging member is constituted by the spring piece portion.
The rear projection television apparatus according to claim 1. The slide member includes a slide operation piece incorporated in the opening / closing lid so as to be movable between a first position and a second position in a direction crossing a moving direction of the locking claw, and the slide operation. A locking projection that projects from the piece to the locking claw and can contact the locking claw positioned at the locking position;
Prevention of movement of the locking claw from the locked position to the unlocked position in contact with the locking claw is performed by the locking projection.
The slide member is configured to be movable between the first position and the second position by disposing the slide operation piece in a guide recess formed to extend on the surface of the opening / closing lid. Built into the lid,
In a state where the slide member is located at the first position, the engagement convex portion abuts on the engagement claw located at the lock position,
In a state where the slide member is located at the second position, the latching convex portion is disengaged from the latching claw and allows the latching claw to move from the locked position to the unlocked position.
The rear projection television apparatus according to claim 1. The slide member includes a slide operation piece incorporated in the opening / closing lid so as to be movable between a first position and a second position in a direction crossing a moving direction of the locking claw, and the slide operation. The lock is released from the locking position of the locking claw by being able to contact the locking claw protruding from the piece to the locking claw and being in contact with the locking claw. A locking projection that prevents movement to a position,
Prevention of movement of the locking claw from the locked position to the unlocked position in contact with the locking claw is performed by the locking projection.
The slide member is configured to be movable between the first position and the second position by disposing the slide operation piece in a guide recess formed to extend on the surface of the opening / closing lid. Built into the lid,
The slide member is made of synthetic resin,
The slide member has a front surface facing the outside in a state incorporated in the open / close lid and a back surface facing the open / close lid,
The open / close lid has a back surface facing the lamp housing chamber and a front surface facing the outside in the closed state,
A spring piece that is elastically deformable integrally with the slide operation piece from the back surface of the slide operation piece,
The spring piece portion protrudes from the bottom surface of the opening / closing lid through a notch on the bottom surface of the guide recess,
The spring piece is engaged with the spring piece on the back surface of the opening / closing lid, and the spring piece is more elastically deformed in the state where the slide member is located in the second position than in the state where the slide member is located in the first position. A locking wall is provided,
The sliding member urging member is constituted by the spring piece portion.
The rear projection television apparatus according to claim 1. The open / close lid has a back surface facing the lamp housing chamber and a front surface facing the outside in the closed state,
A notch is provided at a location near the edge of the opening / closing lid,
The notch is formed in an open shape toward the edge by a base and side edges extending from both sides of the base toward the edge,
The locking claw is located in the notch,
The slide member is disposed in a guide recess formed in the vicinity of the bottom piece so as to extend in parallel with the bottom piece on the surface of the opening / closing lid, so that it is between the first position and the second position. It is incorporated in the opening / closing lid so as to be movable at
The rear projection television apparatus according to claim 1. The locking mechanism is provided at a location near the edge of the opening / closing lid,
A locking groove is formed at the location of the casing that borders the opening,
A locking piece that engages and disengages from the locking groove protrudes from an edge of the opening / closing lid that faces a portion near the edge of the opening / closing lid provided with the locking mechanism,
The opening / closing lid is provided so as to be removable from the opening.
The rear projection television apparatus according to claim 1. The opening / closing lid is swingably connected to the housing,
The locking claw and the slide member are provided at a location of the opening / closing lid away from the pivot axis.
The rear projection television apparatus according to claim 1.

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