JP4685436B2 - Chair with table - Google Patents

Description

  In the present invention, for example, a table that allows a person in the back seat to perform writing work, placing a document, or the like is mounted on a rear surface of a back frame that supports a backrest in a chair of an auditorium, a theater, or the like so as to be folded and housed. It relates to a chair with a table.

  A chair with a table provided on a rear surface of a back frame that supports a backrest so that the table can be folded and stored is described in, for example, Patent Document 1 and the like. The chair with a table described in Patent Document 1 includes a table storage unit attached to the rear surface of the back frame of the chair, and a table stored in the table storage unit so as to be able to be pulled out.

  When using a table, the table stored in the table storage unit can be pulled up once and then rotated backward to the horizontal use position. After use, the opposite operation is performed. It is structured to be traced and stored again in the table storage unit.

This chair is not provided with an outlet or the like that can be used as a power source by plugging in an electronic device.
JP 2001-245750 A

  As described above, in a chair with a table used in a lecture hall, a theater, or the like as described in Patent Document 1, an outlet that can be used as a power source by inserting a plug of an electronic device is not provided.

  Today, however, electronic devices such as portable word processors, personal computers, and communication terminals have become widespread. Opportunities to place electronic devices on the table and listen to lectures and lectures while taking electronic memos. Is getting more.

  Therefore, it is highly necessary to install an outlet for electronic equipment in a chair with a table. In order to provide an outlet and a wiring cord in such a chair with a table, it is necessary to provide the outlet in front of the table and drop the wiring cord in front of the table.

  However, in general, a chair with a table often has the top of the back frame that supports the backrest protruding upward from the backrest of the chair. There is a risk of entering the outlet. In addition, since the table is moved up and down along the front plate of the box-shaped table storage unit, if the wiring cord is to be dropped into the table storage unit, there is sufficient table lifting mechanism. There are problems such as not being able to obtain space and interfering with the elevation of the table.

  The present invention has been made in order to solve the above-described conventional problems, and is provided with an outlet in consideration of the safety of a seated person and sufficient space without interfering the wiring cord with the table. The purpose is to provide a chair with a table that can be passed through.

According to the present invention, the above problem is solved as follows.
(1) A front plate is attached to the rear surface of the back of the chair, is a box, and is stored in the table storage unit, which has a box shape and an opening is provided in the upper plate forming the box-shaped upper surface. In addition, the table that is pulled out through the opening and rotated to the horizontal use position to the rear side to be used , and attached to the center of the front plate in the left-right direction in the table storage unit, and guides the elevation of the table A pair of left and right rails and an outlet provided below the upper end of the backrest and provided on the upper surface plate of the table storage portion, and a wiring cord drawn from the outlet is connected to the table A table device wired along the outside of the rail in the storage portion is provided.

(2) In the above item (1), the table is stored in the table storage portion in parallel with the rear plate, and the table is configured to be pulled out obliquely rearward and upward from the table storage portion.

( 3 ) In the above item (1) or (2), a wiring duct is provided on the lower front side of the back frame that supports the backrest, and the wiring cord is placed on the back frame almost directly below the outlet. Provide a notch leading into the wiring duct.

According to the present invention, the following effects can be achieved.
(A) According to the invention described in claim 1, since the outlet is positioned below the upper end of the backrest of the chair and is isolated from the head of the front seated seater by the backrest, There is no risk that your hair will enter the outlet,
It becomes possible to arrange and use an outlet efficiently. Further, since the wiring is performed in the table storage portion, the wiring is not exposed to the outside, and the appearance is good. Furthermore, since the wiring cord is wired through the table storage portion, the degree of interference with the wiring cord when the table is raised and lowered is further reduced.

In addition, the table moves up and down behind the front plate in the table storage unit, and the wiring cord is wired along the outside of the rail on the front plate side in the table storage unit, so a sufficiently wide wiring space is secured. The In addition, since the rail is located at the center of the front plate of the table storage unit, it is possible to prevent the balance from being lost when the table is moved up and down and to be swayed from side to side. Thereby, the side part of a rail is ensured as space for wiring.

(B) According to the invention described in claim 2, since the table is taken out from the opening at the back of the table storage portion, a large space is formed in the table storage portion, and the table and the wiring cord are sufficiently provided. It can be dropped with a margin.

( C ) According to the invention described in claim 3 , since the notch is provided so as to guide the wiring cord into the wiring duct almost directly under the outlet, the wiring cord is placed in the wiring duct with the shortest distance. Can lead to sure. Further, since the wiring cord substantially corresponds to the notched portion just by hanging the wiring cord from the outlet, the wiring work is facilitated. Then, after the wiring cord is guided into the wiring duct, it can be reliably sent to a predetermined position through the wiring duct.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a chair with a table to which the present invention is applied. FIG. 1 is a side view thereof, and FIG.

  1 and 2, the chair (1) includes a leg body (2), a seat (3) and a back frame (4) attached to the leg body (2), and a front surface of the back frame (4). A backrest (5) provided on the back, an elbow cover (6) attached to the leg body (2), a table device (7) attached to the rear surface of the back frame (4), and the like.

  A wiring duct (8) is disposed on the lower front surface of the back frame (4) between the back frame (4) and the rear portion of the seat (3). The wiring duct (8) has a hollow inside, and a wiring cord (9) guided downward through the interior of the table device (7) is passed through the wiring duct (8). It is designed to guide towards the position.

  3 to 5 show the table device (7). FIG. 3 is a top view thereof, FIG. 4 is a rear view thereof, and FIG. 5 is a longitudinal side view taken along the line VV of FIG. The table device (7) will be further described with reference to FIGS. 3 to 5. The table device (7) includes a table storage box (10) as a table storage portion formed in a box shape, and the table storage box ( And 10) a table (11) arranged so as to be able to be pulled out.

  The table storage box (10) includes a front half (10A) and a rear half (10B) which is attached by closing the rear part of the front half (10A).

  The front half (10A) is composed of a front plate (13a) and a pair of left and right side plates (13b) (13b) bent substantially at right angles from the left and right ends of the front plate (13a) to the rear. The plane is formed in a substantially backward U shape. The front half (10A) has a pair of left and right side plates (13b) and (13b) facing the vertical direction of the chair (1), respectively, and the front plate (13a) on the rear surface of the back frame (4). As shown in FIG. 4, the front plate (13a) is fixed to the back frame (4) with a mounting screw (12) and attached.

  In addition, as shown in FIG. 2, both ends are fixed to the left and right side plates (13b) and (13b) at the upper rear part of the front half (10A), respectively. A lower positioning member (14) that receives the lower surface of the table (11) when being pulled out is attached.

  The rear half (10B) is a rear plate (15a) that closes the rear open portion of the front half (10A), and is bent at a substantially right angle from the left and right ends of the rear plate (15a) to the front, and The chair (1) has a pair of left and right side plates (15b) (15b) extending in parallel in the vertical direction, and is formed in a substantially forward U shape in plan view.

  Further, as shown in FIG. 2, an upper surface plate (16) having both ends fixed to the left and right side plates (15b) and (15b) is attached to the front upper portion of the rear half (10B). An opening (17) for taking in and out the table (11) is formed from the rear portion of the upper surface plate (16) to the upper portion of the rear surface plate (15a). Further, an outlet mounting hole (18) is provided on one end side of the upper surface plate (16).

  The rear half (10B) covers the front half (10A), the upper surface of the front half (10A) is covered with the top plate (16), and the rear side of the front half (10A) is the rear plate (15a). And the left and right side plates (15b) and (15b) are attached to the outside of the left and right side plates (13b) and (13b) of the front half (10A), respectively, and the front half (10B) A box-shaped table storage box (10) is also formed.

  As shown in FIGS. 1 and 5, the table storage box (10) has a rear plate (15a) that is tilted rearward with respect to the front plate (13a). The thickness dimension is formed such that it gradually decreases as it goes downward, and the amount of the table storage box (10) protruding rearward from the back frame (4) is gradually reduced as it goes downward.

  Since the table storage box (10) has such a shape, it is possible to increase the space between the feet of the occupants in the rear seat and the table storage box, and there is room for the feet of the occupants in the rear seats. it can. Note that the table storage box drawn with a two-dot chain line in FIG. 1 is the external shape of the conventional structure, and the table storage box (10) drawn with a solid line is the external shape of the table storage box when the present invention is applied. As can be seen from FIG. 1, the chair (1) of the present embodiment has a smaller amount of protrusion by the dimension S at the foot than the conventional structure, and it can be seen that there is room for the foot of the seated person.

  In the table storage box (10), on the inner surface of the front plate (13a), a pair of left and right rails (19) and (19) are located at the center of the front plate (13a) in the left-right direction. In the state extended in the vertical direction of (1), they are arranged in parallel. As shown in FIG. 2, each rail (19) and (19) is provided with an inverted L-shaped cross section with the rail groove openings facing each other inward.

  On the upper part between the left and right rails (19), (19), an upper positioning member (20) for pulling out the table is provided so as to extend in the left-right direction of the chair (1). 19) In the lower part between (19), a table storage positioning member (21) for receiving the table (11) from the lower side when the table is stored is provided in a state extending in the left-right direction of the chair (1). ing.

  Similarly, in the table storage box (10), a plate-shaped blindfold member (22) is attached to the upper portion of the rear half (10B). As shown in FIG. 6, the blindfold member (22) is formed as a single long and thin plate, and attachment holes (23) and (23) are provided at both ends. A pair of elastic plates (24) and (24) are attached to the blindfold member (22) separately on the left and right sides so as to project downward from the blindfold member (22).

  The elastic plates (24) and (24) are formed of a plate material (elastic member) that can be elastically deformed, such as rubber or plastic, for example, and act as a buffer member as will be described later.

  The blindfold member (22) configured in this way is attached to the left and right sides of the front half (10A) with the elastic plates (24) and (24) positioned on the front plate (13a) side. The mounting brackets (25) and (25) are fixed by mounting screws (27), and are attached to the upper part of the front half (10A) so as to hang down from the lower surface of the upper surface plate (16).

  The table (11) is provided with a plate-like handle plate (28) that also serves as a lid for the opening (17) on the upper edge side. Further, the lower end side of the table (11) is inserted into the table storage box (10) from the opening (17), and is arranged so that it can be put in and out of the table storage box (10) through the opening (17). The

  At the center of the lower part of the front surface (upper surface) of the table (11) when stored in the table storage box (10), with the protruding piece (29) protruding forward, fix it with the mounting screw (30) Has been provided. The projecting piece (29) is provided with a slide shaft (31) inserted through a left-hand thread. Both ends of the slide shaft (31) are slidably engaged with the rails (19) and (19). Here, the slide shaft (31) and the rails (19), (19) constitute the guide means (32), and this guide means (32) slides on the lower end side of the table (11). The rotation is guided by the engagement between the rails (19) and (19) and the slide shaft (31).

  The rear half (10B) has the table (11) inserted through the opening (17) and the slide shaft (31) is slidably engaged with the rails (19) and (19). In this state, it is assembled and fixed to the front half (10A). In addition, when assembling, the outlet (33) is attached to the outlet mounting hole (18) of the rear half (10B).

  A wiring cord (9) is attached to the outlet (33). The wiring cord (9) is wired so as to extend vertically along the rear surface of the front plate (13a) of the front half (10A) and along the outer side of the rail (19) on one side. Yes. The wiring cord (9) is located below the front half (10A) and directly below the outlet mounting hole (18) of the rear half (10B) assembled to the front half (10A). Then, it is led into the wiring duct (8) through the notch (34) provided in the back frame (4) and is electrically connected to the power source.

  FIG. 7 is a view showing the operation state of the table (11), and FIGS. 8 to 11 are views showing the operation of the blind member (22) provided with the elastic plate (24). Next, the operation of the table (11) will be described with reference to FIGS.

  When the table (11) is not used, the table (11) is stored in the table storage box (10), and the lower end of the protruding piece (29) is received in contact with the positioning member (21) for storing the table. Yes. The handle plate (28) of the table (11) is flush with the upper surface plate (16), and the upper surface of the opening (17) is closed by the handle plate (28). 5 and 8 show this state. Also, the two-dot chain line in FIGS. 1 and 7 also shows this storage state. The table (11) stored in the table storage box (10) is disposed substantially parallel to the rear plate (15a) of the rear half (10B).

  Next, when using the table (11), when the table (11) is lifted by placing a finger on the handle plate (28), the rails (19) (19) and the slide shaft (31) are engaged, that is, guided. The table (11) can be lifted obliquely upward by guidance of the means (32). When the front end side (grip plate (28) side) of the table (11) is gradually rotated to the rear side as it is lifted, it can be brought down to the horizontal use position shown by the solid line in FIGS. .

  In this horizontal use position, the upper part of the projecting piece (29) contacts the upper positioning member (20), the lower surface of the table (11) contacts the lower positioning member (14), and the upper and lower surfaces of the table (11) It is received by both members (14) and (20), whereby the horizontal state of the table (11) is maintained and it can be used as a table.

  When the table (11) is rotationally moved from the storage position to the horizontal use position (usable position), during the movement, the upper surface of the front end of the table (11) is a blindfold member as shown in FIGS. It comes into contact with the lower end of the elastic plate (24) as a buffer member attached so as to hang down from (22).

  When further rotated, the elastic plate (24) rotates while being gradually elastically deformed (bent). Therefore, the reaction force when elastically deforming the elastic plate (24) acts as a rotational resistance of the table (11) and acts to reduce the rotational speed of the table (11), so the table (11) When the projecting piece (29) comes to the horizontal use position and reaches the horizontal use position, and the projecting piece (29) comes into contact with the determining member (20), the impact at the time of contact is eased.

  When the table (11) reaches the horizontal use position, as shown in FIG. 11, the table (11) is attached by the blindfold member (22) attached so as to be suspended from the lower surface of the upper surface plate (16). And the upper plate (16) are closed, and the internal mechanism is hidden so as not to be exposed to the outside.

  In this way, the table (11) pulled out to the horizontal use position can be used as a table on which an object is placed. If necessary, it can be used as a power source by connecting a plug of an electronic device or the like to the outlet (33).

  When the table (11) has been used and stored, lift the handle plate (28) of the table (11) by hand and perform the reverse operation to pull it out. ) And is stored in the table storage box (10) while being slid in parallel with the).

  Therefore, the table-equipped chair (1) thus configured can be expected to have the following effects (i) to (iv).

(I) The outlet (33) is located below the upper end of the backrest (5) of the chair (1) and is isolated from the head of the seated person in the front seat by the back frame (4) and backrest (5). Therefore, there is no possibility that the hair of the seated person in the front seat enters the outlet (33), and the outlet (33) can be disposed and used safely and efficiently. Further, since the wiring of the wiring cord (9) is performed in the table storage box (10), the wiring cord (9) is not exposed to the outside, and the appearance is good.

(Ii) Since the table (11) is taken out from the opening (17) at the rear of the table storage box (10), a large space is formed in the table storage box (10), and the wiring cord (9 ) Can be dropped with sufficient margin.

(Iii) The table (11) is raised and lowered behind the front plate (13a) of the table storage box (10), and the wiring cord (9) is inserted into the front side of the table storage box (10). A wide wiring space is secured. In addition, since the rail (19) is positioned at the center of the front plate (13a) of the table storage box (10), the balance is prevented from being lost when the table (11) is moved up and down. As a result, the degree of interference with the wiring cord (9) when the table (11) is raised and lowered is further reduced, and the side portion of the rail (19) is secured as a wiring space.

(Iv) Since the notch (34) is positioned almost directly under the outlet (33) and the wiring cord (9) is guided into the wiring duct (8), the wiring cord is wired at the shortest distance. It can be reliably guided into the duct. Moreover, since the wiring cord (9) substantially corresponds to the notch (34) just by hanging the wiring cord (9) from the outlet (33), the wiring work is facilitated. The wiring cord (9) can be reliably sent to a predetermined position through the wiring duct (8) after being guided into the wiring duct (8).

  As mentioned above, although embodiment of this invention was described, it is also possible to give various deformation | transformation and change to said each embodiment within the range which does not deviate from the summary of this invention. For example, the outlet (33) is changed to the upper surface plate (16) of the table storage box (10), and the rear frame (4) above the upper surface plate (16) is placed behind the upper end of the backrest (5). It is good also as a structure provided so that it may be located below.

It is a side view of the chair with a table which is one embodiment of the present invention. It is a principal part disassembled perspective view of a chair with a table same as the above. It is a top view of the table apparatus in a chair with a table same as the above. It is a rear view of the table apparatus in a chair with a table same as the above. It is a vertical side view along the VV line of FIG. It is a perspective view of the blindfold member which attached the elastic plate in a table apparatus same as the above. It is an operation | movement figure of the table in a chair with a table same as the above. It is a figure explaining the state at the time of table storage. It is operation | movement explanatory drawing of the blindfold member which provided the elastic plate. It is operation | movement explanatory drawing of the blindfold member which provided the elastic plate. It is operation | movement explanatory drawing of the blindfold member which provided the elastic plate.

(1) Chair
(2) Leg body
(3) Seat
(4) Back frame
(5) Backrest
(6) Elbow cover
(7) Table device
(8) Wiring duct
(9) Wiring cord
(10) Table storage box (table storage section)
(10A) Front half
(10B) Rear half
(11) Table
(12) Mounting screw
(13a) Front plate
(13b) Side plate
(14) Lower positioning member
(15a) Rear plate
(15b) Side plate
(16) Top plate
(17) Opening
(18) Outlet mounting hole
(19) Rail
(20) Upper positioning member
(21) Positioning member for table storage
(22) Blindfold member
(23) Mounting hole
(24) Elastic plate (buffer member, elastic material)
(25) Mounting bracket
(26) Mounting hole
(27) Mounting screw
(28) Handle plate
(29) Projection
(30) Mounting screw
(31) Slide shaft
(32) Guide means
(33) Outlet
(34) Notch

Claims (3)

A front plate is attached to the rear surface of the back of the chair, has a box shape, and a table storage portion provided with an opening on the upper plate forming the box-shaped upper surface;
A table that is stored in the table storage unit, pulled out through the opening, and rotated to the horizontal use position to the rear side to be used.
A pair of left and right rails attached to substantially the center of the front plate in the left-right direction in the table storage section and guiding the elevation of the table;
An outlet provided on the upper surface plate of the table storage portion, located below the upper end of the backrest, and a wiring cord drawn out from the outlet on the outside of the rail in the table storage portion A chair with a table, comprising a table device wired along the table.   The table-equipped chair according to claim 1, wherein the table is stored in the table storage portion in parallel with the rear plate, and the table is configured to be drawn obliquely rearward and upward from the table storage portion. Provided with a cable duct on the lower front side of the back frame for supporting the backrest, the back frame, and positioned substantially directly below the outlets, according to claim 1 or 2 provided with a notch for guiding the wire cord in the wire duct The listed chair with table.

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