JP4636873B2 - Chair with table - Google Patents

Description

  The present invention relates to a chair with a table, for example, in which a backrest of a chair of a lecture hall, a theater or the like is mounted on the back so that a table used by a person in the back seat can be folded and stored.

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. And when using the 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 operation opposite to the above Is stored in the table storage unit and folded again.
JP 2001-245750 A

  However, in the one described in Patent Document 1, when the table is used, the table stored in the table storage portion is once straight upward along the rear surface of the back frame and exceeds the upper end portion of the headrest. Since it is pulled out to the position and then rotated backward, it is necessary to be careful not to hit the head of the seated person in the front seat when pulling out the table.

  The present invention has been made to solve the conventional problems as described above, and can be used safely so that the table does not hit the head of a seated person in the front seat. The purpose is to provide a chair with a table.

According to the present invention, the above problem is solved as follows.
(1) A table storage unit that is formed in a box shape by providing an opening in the upper rear portion and attached to the rear surface of the back of the chair; a table that is stored in the table storage unit so as to be able to be pulled out from the opening; A table device having guiding means for guiding the sliding and rotation of the table so that the table is tilted to the horizontal use position while gradually rotating to the rear side as the table is pulled out from the table storage unit. The opening is formed by cutting from the rear part of the upper surface plate to the upper part of the rear plate in the table storage part, and the table is stored in sliding contact with the lower edge of the opening part on the rear plate side. When the table is pulled out diagonally upward from the inside, and the table is in a non-use position stored in the table storage, The upper edge of the table, configured to substantially flush with the upper surface of the upper plate in the table storage unit.

(2) In the above item (1), the guide means is provided along the rear surface of the backrest, and is guided in a vertical direction for guiding the front end portion of the table so as to be slidable in the vertical direction and rotatable about the horizontal axis. It is formed by a facing rail and an opening provided at the rear upper part of the table storage part so as to be spaced rearward from the upper part of the rail.

(3) In the above item (2), a pair of rails are provided on the left and right sides, and a slide shaft facing in the left-right direction is provided at the front end of the table, and each end of the slide shaft is slidably fitted to the rail. Match.

( 4 ) In any one of the above items (1) to ( 3 ), the rear plate of the table storage unit is inclined backward so that the thickness in the front-rear direction of the table storage unit gradually decreases as it goes downward. The amount by which the table storage portion protrudes rearward from the rear surface of the backrest is gradually reduced as it goes downward.

( 5 ) In the above item (2) or (3) or the item (4) subordinate thereto, the front end portion of the table when the table falls to the horizontal use position above the rail in the table storage portion. A positioning member that contacts the surface and positions the table at the horizontal use position is provided.

( 6 ) In any one of the above items (1) to ( 5 ), when the table is moved to the horizontal use position, between the table in the opening of the table storage unit and the lower surface of the upper surface plate in the table storage unit A blindfold member for closing the gap is suspended from the lower surface of the upper plate.

According to the present invention, the following effects can be achieved.
(A) According to the first aspect of the present invention, the table is pulled out of the table storage portion at the rear of the table storage portion and guided by the guiding means, and the chair mounted with the table device as it goes upward. Since the seat occupant (hereinafter referred to as the seat occupant of the front seat) gradually turns to the rear side away from the head and falls into the horizontal use position, the table can be prevented from hitting the seat occupant's head.

In addition, the table storage part has an opening away from the head of the front seat occupant and from the rear of the top plate near the rear seat occupant to the top of the rear plate, so the table is tilted rearward and upward The table can be easily taken out and the table can be easily rotated with the lower edge of the opening on the rear plate side as a fulcrum.

In addition, when the table is in the non-use position stored in the table storage section, the height of the upper edge of the table is flush with the height of the upper edge of the storage section, improving aesthetics. To do.

(B) According to the invention described in claim 2, the front end of the table is guided by the rail so that it can slide in the vertical direction and can be rotated about the horizontal axis, and the portion behind the front end of the table is Since the table is placed on the lower edge of the opening at the rear upper part of the table storage part spaced rearward from the upper part of the table, the table is not limited to a simple linear motion or a rotational motion. It can be moved stably and smoothly along the trajectory.
That is, the table does not rise as it is along the rail, but as the front end rises, the whole gradually tilts backward, and finally, almost simultaneously with the front end reaching the upper end of the rail, This is the horizontal use position.

(C) According to the invention described in claim 3, since the slide shaft provided on the table moves up and down along the rail while being fitted to the pair of left and right rails, the table is moved up and down more smoothly. be able to.

( D ) According to the invention described in claim 4, since the thickness of the table storage portion is gradually reduced as it goes downward, the rear plate of the table storage portion is provided to be inclined rearward. The space between the seated person's feet and the table storage section can be increased. As a result, the seating area of the seated person in the rear seat can be relaxed, and the sitting comfort can be improved.

( E ) According to the invention of claim 5 , the positioning member that contacts the front end surface of the table is provided above the rail, and the front end surface of the table contacts the positioning member, Since the table can be in the horizontal use position with the abutted position, the table can be easily placed in a horizontal state.

( F ) According to the invention described in claim 6, since the blindfold member for concealing the gap between the opening of the table storage portion and the table is provided, the internal mechanism is exposed to the outside when the table is in use. Because it does not, it looks good and can improve aesthetics.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing a chair with a table to which the present invention is applied, and FIG. 2 is an exploded perspective view of a main part.

  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 line AA 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 front 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) toward 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.

  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-like blindfold member (22) is attached to the upper portion of the front half (10A). 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. Moreover, the two-dot chain line of FIG.1 and FIG.7 has also shown 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).

  When using the table (11), put the finger on the handle plate (28) and lift the table (11). At this time, the table (11) tries to rise in the table storage box (10) in parallel with the rear plate (15a) of the rear half (10B), but the slide shaft (31) Ascending along the rail (19) attached to the rear surface of the front plate (13a) of 10A). Since the rear plate (15a) of the rear half (10B) and the front plate (13a) of the front half (10A) are attached so as to gradually move upward from each other, the table (11) As it rises, the lower end moves away from the rear plate (15a) to the front and gradually tilts backward with the slide shaft (31) as the center. Finally, as shown in FIGS. It reaches the horizontal use position indicated by the solid line.

  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) contacts the member (29) by rotating slowly to the horizontal use position and reaching the horizontal use position, 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 (vii).

(I) The table (11) is drawn upward from the rear of the table storage box (10) at a position farther from the front seat occupant, and gradually rotates rearward as it goes upward, that is, the front The table (11) can be used while being tilted to the horizontal use position while rotating in a direction away from the seated person's head, so that the danger that the table (11) hits the seated person's head can be prevented.

(Ii) The table storage box (10) is provided such that the rear plate (15a) of the table storage box (10) is inclined rearward so that the thickness gradually decreases as it goes downward. It is possible to increase the space between the feet of the seated person in the back seat and the table storage box, and it is possible to make room for the feet of the seated person in the back seat. In addition, the table storage box drawn with the dashed-dotted line in FIG. 1 is the external shape of the conventional structure, and the table storage box drawn with the continuous line is the external shape of the table storage box at the time of applying this invention. . As is apparent from FIG. 1, it can be seen that the present invention has a smaller amount of protrusion by the dimension S at the foot than in the conventional structure, and the foot of the seated person is relaxed.

(Iii) An opening (in the table storage box (10) from the rear of the top plate (16) to the top of the rear plate (15a) that is separated from the head of the front seat occupant and close to the rear seat occupant ( Since 17) is provided, it is easy to take out the table (11). In addition, the table (11) is stored in parallel with the rear plate (15a) inclined obliquely rearward and is drawn out in parallel, so the table (11) is obliquely rearward upward. Easy to take out.

(Iv) The front end of the table (11) is attached to the rail (19), and the table (11) is moved up and down along the rail (19) by the guide of the rail (19), and it is structured to rotate. The table (11) can be raised and lowered smoothly by the guide of the rail (19).

(V) An upper positioning member (20) is provided above the rail (19) so as to come into contact with the projecting piece (29) of the table (11), and the projecting piece (29) of the table (11) is in contact therewith. By making contact, the table (11) can be set to the horizontal use position at the contacted position, so that the horizontal state of the table (11) can be easily obtained. Note that positioning at the upper end of the drawer is performed by contacting the front end surface of the table (11) and the elastic plate (24) instead of contacting the protruding piece (29) and the upper positioning member (20). Also good.

(Vi) Since a blindfold member (22) for concealing the gap between the opening (17) of the table storage box (10) and the table (11) is provided, when the table (11) is put into use, The mechanism is not exposed to the outside, it looks good, and the aesthetics can be improved.

(Vii) When the table (11) is in the non-use position (storage position) stored in the table storage box (11), the height of the upper edge of the table (11) is the height of the table storage box (10). Since the height is almost the same as the height of the top plate (16), the aesthetics are improved.

  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.

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 (6)

A table storage unit that is formed in a box shape with an opening at the rear upper part and attached to the rear surface of the back of the chair, a table that is stored in the table storage unit so as to be able to be pulled out from the opening, and the table storage A table device having guide means for guiding the sliding and rotation of the table so that the table is tilted to the horizontal use position while being gradually rotated to the rear side as the table is pulled out from the inside ; The opening is formed by cutting from the rear part of the upper surface plate to the upper part of the rear plate in the table storage part, and the table is slanted from within the table storage part while being in sliding contact with the lower edge of the opening part on the rear plate side. The table is pulled out rearward and upward when the table is in the non-use position stored in the table storage section. Upper edge of Le is a chair with a table, characterized by being configured so as to be substantially flush with the upper surface of the upper plate in the table storage unit.   The guide means is provided along the rear surface of the backrest, and the front end of the table is slidable in the vertical direction and is guided to be rotatable about the horizontal axis. The chair with a table according to claim 1, which is formed by an opening provided at a rear upper portion of the table storage portion so as to be spaced apart from each other.   The table-equipped chair according to claim 2, wherein a pair of rails are provided on the left and right sides, and a slide shaft facing in the left-right direction is provided at a front end portion of the table, and each end portion of the slide shaft is slidably fitted to the rail. . The rear surface plate of the table storage portion is provided to be inclined rearward so that the thickness in the front-rear direction of the table storage portion is gradually reduced downward, and the table storage portion protrudes rearward from the rear surface of the backrest. The chair with a table according to any one of claims 1 to 3 , wherein the amount to be reduced is gradually reduced as it proceeds downward. A positioning member is provided above the rail in the table storage portion, and a positioning member that contacts the front end surface of the table and positions the table at the horizontal use position when the table falls to the horizontal use position. The chair with a table according to 3, or 4 subordinate thereto. A blindfold member that closes a gap between the table in the opening of the table storage portion and the lower surface of the upper surface plate in the table storage portion when the table is moved to the horizontal use position is suspended from the lower surface of the upper surface plate. The chair with a table in any one of Claims 1-5 .

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