JP2003249779A - Rack - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rack which is not hindered by an opening and closing door and can be used conveniently without needing opening and closing opera tion of the opening and closing door. <P>SOLUTION: A rack main body 6 can accommodate electronic apparatuses such as a personal computer 7 and an audio apparatus 8 in an internal space constituted of a ceiling panel 1, a bottom plate 2 and side plates 3, 3. A pair of right and left opening and closing doors 5, 5 which close the respective front aperture parts are fixed so as to be freely opened and closed pivotally around vertical shafts installed on outer end sides in the right and left directions. The vertical shafts of the doors 5, 5 are arranged outside the outer surfaces of the side plates 3, 3 in the right and left directions. The doors 5, 5 are so constituted that attitude change into an open attitude is freely possible in which the open doors 5, 5 become almost parallel with the side plates 3, 3. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage rack capable of storing electronic equipment such as a personal computer (abbreviation of personal computer, hereinafter referred to as personal computer) and audio equipment.

[0002]

2. Description of the Related Art In recent years, in a school classroom, a conference room, a presentation hall, etc., the data stored in an audio device such as a personal computer or a DVD is projected on an image receiving device such as a display or a screen to explain a study or a conference theme. It is used as an aid or as an explanation of a class. In the past, equipment such as a personal computer and audio equipment was stored in a storage rack equipped with a pair of left and right openable doors that can be opened and closed by swinging, and the openable doors of the storage rack were opened when necessary, for example, in a personal computer. Pulls the slide plate toward you to operate the computer.

[0003]

However, since the opened / closed doors are located on both sides of the personal computer in an open state, it is not only a hindrance, but especially when the doors are used in a narrow space. It could cause other objects to touch and damage the door. Further, when manually operating the front panel of the audio device, the opening / closing door has to be opened and closed each time, which is troublesome. still,
If the remote control output signal cannot be transmitted to the audio device when the door is closed, such as when the door is made of wood, leave the door open or open the door as described above. There is the trouble of having to open and close the door and manually operate the front panel of the audio device. If the open / close door is left open, there is the inconvenience of bringing another object into contact with the open / close door as described above.
There was room for improvement.

In view of the above-mentioned situation, the present invention is to solve the problem by providing a storage rack which can be conveniently used without the opening / closing door being a hindrance and which does not require opening / closing operation of the opening / closing door one by one. It is in the point of providing.

[0005]

The storage rack of the present invention comprises:
In order to solve the above-mentioned problems, a rack main body capable of accommodating electronic devices such as personal computers and audio devices in an internal space formed by at least a top plate, a bottom plate and left and right side plates is provided with a front opening portion thereof. Close A pair of left and right open / close doors is swingably mounted around the vertical axis provided on the outer end in the left / right direction, and the vertical axis of the open / close door is located outward in the left / right direction with respect to the outer surface of the side plate. It is characterized in that the opening / closing door that is operated to be opened is freely changeable to an open attitude that is substantially parallel to the side plate. By arranging the vertical axis of the opening / closing door on the outer side in the left-right direction with respect to the outer surface of the side plate of the rack body as described above, the opening / closing door is set to an angle of more than 180 degrees (approximately 270 degrees) around the vertical axis. It is possible to swing and change the posture to an open posture that is substantially parallel to the side plate, and it is possible to prevent other objects from coming into contact with the open / close door or obstructing the open / close door. Further, if the opening / closing door is in the open position, the opening / closing door does not get in the way, and the electronic device housed in the rack body can be operated at any time.

By providing the holding means for fixing and holding the open / close door in the open position to the side plate, the open / close door in the open position does not accidentally swing toward the closed position.
The open / close door can be reliably maintained in the open position.

In front of the free ends of the open / close doors in the closed position, there is a length extending over the left and right open / close doors, and they project from below to above or from above to the open side of both open / close doors. A blocking member for blocking the swinging contact is provided on the bottom plate or the top plate so as to be able to move back and forth. For example, in the case of providing a lock mechanism for fixing one opening / closing door and providing a linking member on the other opening / closing door for allowing the other opening / closing door to be opened after one opening / closing door is opened, Not only is there a disadvantage in terms of the mounting surface where both opening and closing doors are equipped with a locking mechanism and a linking member, but also the order of opening or closing is required,
There is a disadvantage that opening and closing operations are troublesome. On the other hand, as described above, the opening / closing doors can be locked in a closed posture simply by providing the bottom plate or the top plate with the blocking member for blocking the swinging of the opening / closing doors to the open side. In addition, the opening and closing doors are not restricted by the opening and closing order.

A block for preventing the swinging of the opening and closing doors from the lower side or the upper side of the free ends of the left and right opening and closing doors to prevent the swinging of the both opening and closing doors to the open side. A member is provided on the bottom plate or the top plate so as to be able to move back and forth. Similar to the third aspect, both opening / closing doors can be locked in the closed posture by merely providing the bottom plate or the top plate with the blocking member for blocking the swinging of the both opening / closing doors to the open side. , There is no restriction on the opening / closing order of the doors.
Further, since the blocking member is inserted into the recess formed at the lower end or the upper end of the free end of the opening / closing door, the blocking member cannot be seen from the outside and the design is not impaired.

A terminal provided with a connection terminal for connecting a communication line to the electronic equipment on the side of the housing portion housed in the rack body and a communication line to the electronic equipment on the outside such as a projector or a display arranged outside. The terminal board is provided with an external electronic device by arranging the external terminal so that the communication line of the external electronic device can be easily connected to the terminal board from the outside. The communication line of the device can be easily and quickly connected from the outside. By configuring the connection as a plug type, the communication line can be connected to the connection terminal only by inserting the male type plug into the female type plug, and the connection work can be performed more easily and quickly.

The rack body is provided with a slidable shelf on the front side thereof, and the shelf is provided with a retractable auxiliary mounting portion projecting to at least one of the left and right sides thereof. Thus, for example, when a personal computer is placed on a shelf, a mouse for operating a cursor can be placed on an auxiliary placing portion for use.

[0011]

FIG. 1 shows a storage rack for a personal computer. The storage rack includes a top plate 1 which is rectangular and long in the front-rear direction and which is located at the uppermost position in a substantially horizontal posture, and a bottom plate 2 which has substantially the same size as the top plate 1 and is located at the lowermost position. , A pair of left and right vertically oriented side plates 3 and 3 each having a vertically long rectangular shape, and a back plate 4 for closing the rear opening.
(Shown in FIG. 5), a rack body 6 composed of a pair of left and right doors 5 and 5 for closing the front opening, and two personal computers 7 and 7 mounted and supported in the vertical direction, Also, a pair of upper and lower slide shelves 9 configured to be slidable forward, and a DVD or video tape recorder (VTR)
Shelf 10 for placing and supporting audio equipment 8 such as
It consists of and. At the four corners of the bottom surface of the bottom plate 2,
The caster K is attached for smooth movement, but it may be omitted. Further, in FIG. 1, the projector 11 is placed on the top plate 1 so that an image from the projector 11 can be displayed on a screen (not shown). The projector 1
The video output from the personal computers 7, 7 and the audio equipment 8 is output to the screen 1 to output the video to the screen. In FIG. 1, the slide shelf 9 of the personal computer 7 located on the upper side is pulled out to the front to use the upper personal computer 7, but when the lower personal computer 7 is desired to be used, the upper slide shelf 9 is attached to the rack body. Although the lower personal computer 7 is used by pushing the lower slide shelves 9 forward while pushing the lower slide shelves 9 into the interior 6, the upper and lower slide shelves 9 and the lower slide shelves 9 are widened to make both Slide shelf 9,
9 may be pulled out to the front so that the two personal computers 7, 7 can be used.

Since the left and right doors 5 and 5 are made of wood and have the same structure, one of the doors 5 (right door when viewed from the front) will be described with reference to FIG.
As shown in (a) and (b), recesses 1A formed in the top plate 1 and the bottom plate 2 at the upper and lower ends of the opening / closing door 5 on one end side in the left-right direction.
The opening / closing door 5 is swingably opened / closed around the vertical axis X by providing the substantially cylindrical projections 5T that are rotatably inserted into (the concave portion of the top plate 1 is shown in FIG. 4). There is. Then, the recess is located outside the outer surface of the side plate 3 in the left-right direction, and the opening / closing door 5 is set at a position where it can swing and open by approximately 270 degrees. Therefore, by swinging the opening / closing door 5 by approximately 270 degrees from the closed position shown by the solid line in FIG. 2A, the open position can be made substantially parallel to the side plate 3 as shown in FIG. 2B. In this way, the opening / closing doors 5 and 5 are positioned in the space formed by the top plate 1 and the bottom plate 2 in the vertical direction so that the opening / closing doors 5 and 5 do not get in the way. Also, as described above, the opening / closing door 5
By arranging the swing axis core (upper and lower axis) X of the side plate 3 on the outer side in the left-right direction with respect to the outer surface of the side plate 3, the outer surface of the side plate 3 is not visible when the storage rack is viewed from the front, giving a sense of design. It has the advantage that it can be a raised storage rack.
Here, since the angle θ formed by the opening / closing door 5 and the side plate 3 is about 90 degrees, the opening / closing door 5 is swung by about 270 degrees. The swing angle of the opening / closing door 5 is changed depending on the angle formed. Further, the side plate 3 is provided with a permanent magnet 12, and the opening / closing door 5 in the open position as described above is provided with a metal piece 13 attracted to the permanent magnet 12, so that the opening / closing door 5 is opened in the open position. The holding means for fixing and holding by using the attractive force of the permanent magnet 12 is configured, but the holding means for fixing the opening / closing door 5 is formed by using the locking action or the surface fastener. Good. Further, as shown in FIG. 2B, when the opening / closing door 5 is opened, the permanent magnet 12 and the metal piece 13 are in contact with each other so that the outer surface of the side plate 3 and the outer surface of the opening / closing door 5 do not contact each other (both. (A state in which there is a slight gap between the two), the impact noise when the opening / closing door 5 is opened can be reduced, but a cushion material or the like is used for the surface of the permanent magnet 12 or the surface of the metal piece 13 or the side plate 3. May be provided on the surface (outer surface) or on the surface (outer surface) of the opening / closing door 5.

The lock structure for locking the open / close doors 5 and 5 in the closed posture will be described with reference to FIG.
As shown in (b), a recess 5A is formed in the center of the thickness direction at the lower end corners of the free ends of the opening / closing doors 5 and 5 (see also FIG. 7).
And the recesses 5A of the two open / close doors 5 and 5, respectively.
5A, a plate-shaped stopper member 14 as a blocking member for blocking the swinging of the opening and closing doors 5 and 5 toward the open side by entering from below and at substantially the center of the bottom plate 2 in the left-right direction, and The front portion is provided with a swing-fixed position protruding upward and a swingable position retracted downward so as to be capable of retracting. Therefore, in a state in which both the opening and closing doors 5 and 5 are in the closed posture, by inserting a key (not shown) into the key hole 2A formed on the front surface of the bottom plate 2 and rotating it, the stopper member 14 is projected upward. Doors 5, 5
The opening and closing doors 5 and 5 can be locked in a closed posture by entering the grooves 5A and 5A. When the lock is released, the key inserted in the keyhole 2A is rotated in a direction opposite to the rotation direction,
The stopper member 14 will be retracted into the bottom plate 2. Here, the case where the stopper member 14 is projected from the lower side to the upper side is shown, but the stopper member 14 may be attached to the top plate 1 to project from the upper side to the lower side.

As shown in FIG. 1, each of the slide shelves 9 protrudes to either of the left and right sides of the slide shelf 9 (in the figure, only the right side is projected), which is a retractable auxiliary mount. By providing the mounting plate 15 as a mounting portion,
When the personal computer 7 is placed on the slide shelf 9 as shown in FIG. 1, it is possible to use a mouse (not shown) for operating a cursor on the auxiliary placing plate 15 for use. There is. By placing the placing plate 15 so as to project to either the left or the right, it is possible to freely select the mouse depending on the user's preference, such as placing the mouse on the right or using it on the left. Although there is an advantage that it can be provided, it may be configured such that only one of them projects.

The protrusion 5T of the opening / closing door 5 will be described in detail. As shown in FIG. 4, the protrusion 5T having a circular cross section and a rod shape is formed in a recess 5B formed at the upper end of the opening / closing door 5 on the free end side. A holding tool 5C is provided for holding the movable body up and down, and a coil spring 5S for biasing the protruding portion 5T to the upper side is provided in the holding tool. Therefore, after locking the protruding portion 5T fixed to the lower end on the free end side of the opening / closing door 5 into the recess (not shown) formed in the bottom plate 2, the upper end of the opening / closing door 5 is brought into contact with the lower surface of the top plate 1. By doing so, the protrusion 5T can be retracted into the recess 5B. In this state, the opening / closing door 5
By moving the protrusion 5T so that the protrusion 5T is located in the recess 1A shown in FIG. 4, the protrusion 5T enters the recess 1A by the biasing force of the coil spring 5S, so that the assembling work of the opening / closing door 5 can be performed easily and quickly. However, other configurations may be used. Further, in FIG. 4, only the upper protrusion 5T is shown to be retractable, but the lower protrusion 5T or both upper and lower protrusions 5T, 5T are configured to be retractable. You can also

FIG. 5 shows a rear surface (rear surface) of the storage rack. Reference numeral 16 shown in FIG. 5 is a communication line to the electronic equipment on the side of the housing such as the personal computers 7, 7 and the audio equipment 8 housed in the rack body 6 and the projector 11 arranged outside (other display or the like may be used. ) Etc., the top plate 1 in a state where the terminal plate 16 provided with a connection terminal for connecting a communication line to an external electronic device such as
It is attached just below the back side of. Therefore, if the communication wires of the personal computers 7, 7 and the audio equipment 8 are inserted into the terminals (not shown) provided on the inner surface side of the terminal board, the projector 11 which is an external electronic equipment can be brought to bring the projector 11 By simply inserting the communication line to the connection terminal of the terminal board 16 from the horizontal direction, the electronic equipment on the storage unit side and the electronic equipment on the external side can be connected easily and quickly. The communication line is a two-system LAN cable, RB
A G-type video cable or the like, which is a plug-type connection terminal 17 capable of connecting / disconnecting the connection plug at the end of the LAN cable, a plug-type connection terminal 18 capable of connecting / disconnecting the connection plug at the end of the RBG image cable, And a two-port outlet 19 that constitutes a power supply unit for the projector 11 which is an external electronic device.
However, it may have a configuration other than that shown in FIG. Although the opening 4A is formed between the upper end of the back plate 4 and the lower end of the terminal plate 16 in FIG. 5, a lid that closes the opening 4A may be attached. or,
4B shown in the figure is a large number of through-holes for discharging the hot air generated in the rack body 6 to the outside, but it is not necessary.

In FIG. 5, the terminal plate 16 is vertically arranged so that the plugs at the ends of various cables can be inserted into and removed from the connection terminals of the terminal plate 16 in the horizontal direction.
As shown in FIG. 1, the terminal plate 16 is horizontally placed on the upper end of the back plate 4 so that the plug can be inserted and removed from the upper side.
May be attached so that the plug can be inserted and removed more easily and quickly. Since the other configurations not described in FIG. 6 are the same as those in FIG. 5, the same reference numerals are given and the description is omitted. or,
In FIG. 6 as well, a lid that closes the opening 4A formed between the upper surface of the terminal plate 16 and the lower surface of the top plate 1 may be attached.

In FIG. 1, a vertical type storage rack having a large storage space in the vertical direction is shown. However, as shown in FIG. 7, a short low-board storage rack in which the storage space is not large in the vertical direction may be used. Although not shown, a horizontal storage rack having a large storage space in the horizontal direction may be used, and as long as the storage rack is provided with an opening / closing door that can be changed to an open posture that is substantially parallel to the side plate 3, The storage rack may have any configuration.

Further, the storage rack having the structure shown in FIG. 8 may be used. This is because a display is placed on the top plate 1, and audio devices 8 for outputting an image signal to the display 20 and recording an image displayed on the display are fixed vertically in a fixed shelf 10 ( Slide shelf 9
The storage rack for the audio device stored via the storage rack is shown. Reference numeral 21 shown in FIG. 8 is a band for fixing the display 20 to the top plate 1, and is provided so as not to interfere when the opening / closing doors 5 and 5 are opened. The display 20 may be fixed to the top plate 1 by a method other than the band 21, or these fixing means may be omitted.

In FIG. 8, each opening / closing door 5 is made of a wooden base end portion 5X having the projecting portion 5T and a glass fixed to the free end portion of the base end portion 5X by screws or adhesion. Transparent (may be translucent or non-transparent or frosted glass etc.)
And the door portion 5Y of FIG.
As shown in (b), the permanent magnets 12 are swung from the closed position by approximately 270 degrees to be in the open position substantially parallel to the side plate 3.
The metal pieces 13 can be held by adsorption. Since the other configurations not described in FIGS. 9A and 9B are the same as those in FIGS. 2A and 2B,
The same reference numerals are given and description thereof is omitted.

Further, FIGS. 10A and 10B show a lock structure for locking the glass doors 5 and 5 shown in FIG. 8 in the closed posture. Since the open / close doors 5 and 5 are made of glass, they have a length that extends between the free ends of the open / close doors 5 and 5,
Further, the plate-like stopper member 14 as a blocking member for projecting from the lower side to the front side of the open / close doors 5, 5 and upward to prevent the open / close doors 5 and 5 from swinging toward the open side is provided with the bottom plate. 2 is provided at a substantially central position in the left-right direction and at a front position so as to be capable of retracting at an oscillating fixed position protruding upward and an oscillating position retracting downward. Therefore, in a state in which both the opening and closing doors 5 and 5 are in the closed posture, by inserting a key (not shown) into the key hole 2A formed on the front surface of the bottom plate 2 and rotating it, the stopper member 14 is projected upward. By projecting the opening / closing doors 5 and 5 forward, it is possible to prevent the operation of the opening / closing doors 5 and 5 on the opening / closing side. In addition, when releasing the lock,
By rotating the key inserted in the keyhole 2A in the direction opposite to the rotation direction, the stopper member 14 is retracted into the bottom plate 2. Here, the case where the stopper member 14 is projected from the lower side to the upper side is shown, but the stopper member 14 may be attached to the top plate 1 to project from the upper side to the lower side.

The storage rack may be constructed as shown in FIG. In FIG. 11, a pair of left and right front mounting brackets 22 for screwing various audio devices 8 such as an amplifier, a mixer, a DVD player and a CD player.
(Only the left side is shown in the figure) is provided in the rack body 6 to form a vertical storage rack for audio equipment. Since the other configurations not described in FIG. 11 are the same as those in FIG. 8, the same reference numerals are given and the description thereof will be omitted.

Further, FIG. 12 shows a short low-board type storage rack which is obtained by contracting the one shown in FIG. 11 in the vertical direction.
Since the other configurations not described in FIG. 12 are the same as those in FIG. 11, the same reference numerals are given and the description is omitted. Further, by modifying the top plate 1, the storage rack can be used as a lecture table (speech table).

[0024]

According to the first aspect of the present invention, the vertical axis of the opening / closing door is arranged laterally outward from the outer surface of the side plate of the rack body so that the vertical axis of the opening / closing door is about 18 mm.
Since the posture can be changed to an open posture in which it swings at an angle exceeding 0 degree (approximately 270 degrees) and becomes substantially parallel to the side plate, the opening / closing door largely protrudes from the storage rack as in the conventional case, and the protrusion is generated. Not only can you prevent other objects from hitting the open / close door, and avoid the open / close door from getting in the way especially in narrow places, but if you keep the open / close door in an open position, you can open / close the open / close door one by one. Even without,
It is possible to provide a storage rack that can operate electronic devices stored in the rack body at any time.

According to the second aspect of the present invention, by providing the holding means for fixing and holding the open / close door in the open position on the side plate, the open / close door in the open position is unexpectedly swung toward the closed position. The open / close door can be reliably maintained in the open posture, and can be conveniently used.

According to the third aspect of the present invention, the opening / closing doors are closed by simply providing the bottom plate or the top plate with a blocking member for blocking the swinging of the opening / closing doors toward the open side. It is possible to provide the storage rack that can be locked in the posture and is not restricted by the opening / closing order of the opening / closing doors, and has a high commercial value that is advantageous in operability.

According to the invention of claim 4, as in the case of claim 3, the blocking member for blocking the swinging of both opening and closing doors toward the open side can be provided on the bottom plate or the top plate so as to be retractable and retractable. The open / close door can be locked in the closed posture, and the storage rack which is not restricted by the opening / closing order of the open / close doors and has a high commercial value which is advantageous in operability can be provided.
Further, since the blocking member is inserted into the recess formed at the lower end or the upper end of the free end of the opening / closing door, the blocking member is not visible from the outside, and the commercial value can be further enhanced.

According to the fifth aspect of the present invention, the communication line to the electronic equipment on the storage unit housed in the rack body is connected to the communication line to the electronic equipment on the outside such as a projector or a display arranged outside. The terminal board is provided with a connection terminal for connecting the terminal board to the terminal board so that the communication line of the external electronic apparatus can be easily connected to the terminal board from the outside. The communication line can be easily and quickly connected from the outside, and the setting time of the external electronic device can be shortened.

According to the sixth aspect of the present invention, the rack body is provided with a slidable shelf on the front side thereof, and the shelves are provided on at least one of the left and right sides of the shelf so that the rack can be freely retracted. By providing the mounting part of, for example, when a personal computer is mounted on a shelf board, there is an advantage that a mouse for operating the cursor can be placed on the auxiliary mounting part for use. The product value can be further increased.

[Brief description of drawings]

FIG. 1 is a perspective view showing a storage rack for a personal computer.

2A and 2B show open / closed states of open / close doors 5 and 5, in which FIG. 2A shows a closed posture and FIG. 2B shows an open posture.

3A and 3B show a lock structure of opening / closing doors 5 and 5, wherein FIG. 3A is a front view thereof, and FIG. 3B is a longitudinal side view thereof.

FIG. 4 is a cross-sectional view of a main part showing a structure of a pivotal support portion of an opening / closing door.

FIG. 5 is a perspective view showing a rear surface portion of the storage rack.

FIG. 6 is a perspective view showing a rear portion of another form of the storage rack.

7 is a perspective view of a storage rack that is shorter than the storage rack shown in FIG. 1. FIG.

FIG. 8 is a perspective view of a storage rack for audio equipment in which a display is mounted on a top plate.

9 shows the open / closed state of the open / close doors 5 and 5 shown in FIG.
(A) shows a closed posture, (b) has shown an open posture.

10 shows a lock structure of the opening / closing doors 5 and 5 shown in FIG. 8, (a) is a front view thereof, and (b) is a longitudinal side view thereof.

FIG. 11 is a perspective view of a storage rack for audio equipment.

12 is a perspective view of a storage rack that is shorter than the storage rack shown in FIG.

[Explanation of symbols]

1 Top Plate 1A Recess 2 Bottom Plate 2A Keyhole 3 Side Plate 4 Back Plate 4A Opening 5 Opening Door 5A Recess 5B Recess 5C Retainer 5S Coil Spring 5X Base End 5Y Door 5T Projection 6 Rack Body 7 Personal Computer (Electronic Equipment) 8 Audio equipment (electronic equipment) 9 Sliding shelf 10 Fixed shelf 11 Projector 12 Permanent magnet 13 Metal piece 14 Stopper member (blocking member) 15 Mounting plate (mounting part) 16 Terminal plate 17, 18 Connection terminal 19 Outlet 20 Display 21 Band 22 Mounting member K Caster X Vertical axis θ Angle

Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) A47B 81/06 A47B 81/06 A B D G06F 1/16 G06F 1/00 313A

Claims (6)

[Claims] 1. A pair of left and right which closes a front opening of a rack main body in which an electronic device such as a personal computer or an audio device can be stored in an internal space formed by at least a top plate, a bottom plate and left and right side plates. Each of the open / close doors is swingably opened / closed around the vertical axis provided on the outer side in the left / right direction, and the vertical axis of the open / close door is placed on the outer side in the left / right direction with respect to the outer surface of the side plate. The storage rack is configured so that the opening / closing door that has been operated to be opened can be freely changed to an opened attitude that is substantially parallel to the side plate. 2. The storage rack according to claim 1, further comprising holding means for fixedly holding the open / close door in the open position on the side plate. 3. The opening and closing doors having a length extending over the left and right opening and closing doors in front of the free ends of the opening and closing doors in the closed posture and projecting from below to above or below from above. 2. The storage rack according to claim 1, wherein a blocking member for blocking the swinging to the side is provided on the bottom plate or the top plate so as to be retractable. 4. The opening and closing doors of the left and right doors are prevented from swinging toward the open side by entering the recesses formed at the lower end or the upper end of the left and right doors from above or below. 2. The storage rack according to claim 1, wherein the blocking member is provided on the bottom plate or the top plate so as to be able to move back and forth. 5. A connection terminal is provided for connecting a communication line to the electronic equipment on the side of the storage unit housed in the rack body and a communication line to the electronic equipment on the outside such as a projector or a display arranged outside. 2. The terminal board according to claim 1, further comprising: a terminal plate, the terminal board being exposed to the outside so that a communication line of the external electronic device can be easily connected to the terminal board from the outside. Storage rack. 6. The rack main body is provided with a slidable shelf at the front side thereof, and the shelf is provided with a retractable auxiliary mounting portion projecting to at least one of the left and right sides thereof. The storage rack according to claim 1, wherein: