JP2015000183A - Furniture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and finely execute an operation for storing a plate body from a use state.SOLUTION: Furniture 10 can be changed over between a use state where a plate body 21 is rotationally supported by a furniture body 12 and a use surface 21a of the plate body 21 faces upward, and a storage state where the use surface 21a faces a mounting surface of the furniture body 12. The furniture includes: support members 22 that are fixed to the furniture body 12; rotational members that are rotationally provided on the support members 22 and slidingly movably support the plate body 21 along side ends 80 of the plate body 21; and guide mechanisms that, when the plate body 21 is rotationally moved from the use state to he storage state, guide the plate body 21 so as to execute the rotational movement of the plate body 21 in parallel with the downward slide movement of the plate body 21.

Description

  In the present invention, a plate body such as a table top plate that supports a load on the use surface is used with the use state in which the use surface of the plate body faces substantially upward with respect to the furniture body, and the plate body is rotated to the furniture body. The present invention relates to furniture provided so as to be able to rotate between the unused state.

For example, in a theater, an auditorium, a conference hall, a lecture room, etc., in a chair that is installed side by side, front and back, left and right, place items etc. on the back, or write on the top (use surface) Some have tables that can be done. In a chair (furniture with a table) provided with such a table, a user seated in a back row chair uses a table provided on the back of the front row chair.
Furthermore, in order to facilitate the movement of the occupant between a plurality of chairs arranged in the same row, the usage state of the table top plate (plate body) faces substantially upward, and the table top plate is rotated. There is a table top plate that can be rotated between the non-use state along the backrest.

  For example, in Patent Document 1, a support base fixed to the back of a chair backrest is rotatably accommodated in a rotation case that supports a table body, and an arc shape provided in the rotation case. The structure which regulates the rotation range of a rotation case and the table main body supported by the concave part and the stopper pin which protrudes from the support base and is hidden inside the rotation case is disclosed.

  By the way, the table top is not only rotated from the usage state with the use surface facing upwards, but along the backrest. There is also a table with a structure to do.

Japanese Patent No. 4865679 (paragraph [0021], FIG. 4)

However, in the configuration in which the table top plate is slid downward from the state along the backrest as described above, the table top plate is rotated from the state of use and moved along the backrest, and the table top plate is It is necessary to sequentially perform a sliding operation of sliding downward from a state along the backrest.
For this reason, there is a problem that it takes time to store the table from the use state.
Further, when the transition is made from the pivoting operation to the sliding operation, the table top plate abuts against the stopper pin or the like, so that an impact or noise may occur, and there is a problem that the quality is not good.
An object of the present invention made there is to provide furniture capable of easily and finely performing an operation of storing a plate body from a use state.

The present invention employs the following means in order to solve the above problems.
That is, in the present invention, the plate body is rotatably supported by the furniture body, and the use surface of the plate body faces upward, and the storage state in which the use surface faces the attachment surface of the furniture body. Switchable furniture, a support member fixed to the furniture body, and rotatably provided on the support member, the plate body being slidable in a direction along a side edge of the plate body And when the plate body is rotated from the use state toward the housed state, the rotation operation of the plate body and the downward slide operation of the plate body are performed in parallel. The furniture is characterized by comprising a guide mechanism for guiding the plate body so that the plate body is rotated from a use state in which the use surface is directed upward. Face down to the mounting surface and still face the mounting surface. Slide in the direction and store. In such a configuration, the plate body can be accommodated in a short time by performing the rotation operation and the slide operation of the plate body in parallel as compared with the case where these two operations are performed in two stages. Further, since the rotation operation and the slide operation are performed in parallel, the operation of the plate body is performed without interruption between the rotation operation and the slide operation, and the quality is smooth. Furthermore, when the rotation operation is completed, a part of the slide operation is completed, so that the moving stroke of the slide operation performed thereafter can be small. Thereby, it is possible to reduce an impact or the like generated when the plate body slides downward.

When the plate mechanism rotates the plate body from the stored state toward the use state, the one end portion of the plate body on the side close to the rotation center of the rotation member is displaced upward. When the plate body is gradually moved closer to the rotation center and the plate body is rotated from the stored state toward the use state, the one end portion of the plate body is gradually moved downward. You may make it guide so that it may space apart from the said rotation center.
Thereby, the rotation operation and the slide operation of the plate can be efficiently performed in parallel. Further, the size of the guide mechanism in the front-rear direction can be reduced as compared with the configuration in which the rotation operation and the slide operation of the plate body are performed separately.

Further, when the guide mechanism rotates the plate body from the stored state toward the use state, the guide mechanism passes through the position of one end portion of the plate body immediately before the start of rotation and is virtually centered on the rotation center. When the one end portion of the plate body is moved on the inner circumference side of the circle and the plate body is rotated from the use state toward the storage state, the position of the one end portion of the plate body immediately before the start of rotation The one end of the plate may be moved on the outer peripheral side of an imaginary circle that passes through the center of rotation.
This also makes it possible to efficiently perform the rotating operation and the sliding operation of the plate in parallel. Further, the size of the guide mechanism in the front-rear direction can be reduced as compared with the configuration in which the rotation operation and the slide operation of the plate body are performed separately.

The guide mechanism may include a linear portion in the vertical direction that slides the plate body linearly at both ends of the guide range of the plate body.
Thereby, when a plate starts to rotate, a plate can be quickly slid.

The guide mechanism may include a bending portion that slides the plate body in a curved shape at an intermediate portion of the guide range of the plate body.
Thereby, the moving speed of the one end part of a board is decelerated, and the sudden fall of a board can be controlled.

The guide mechanism may include a guide groove formed in the support member, and a guide protrusion provided in the plate body and inserted into the guide groove.
In such a guide mechanism, when the plate body is rotated, the guide protrusion provided on the plate body is guided along the guide groove, thereby reliably performing the rotation operation and the slide operation in parallel. be able to.
Further, by making the dimensional accuracy between the guide groove and the guide projection strict, the play between the plate and the support member can be minimized.

Further, the guide mechanism may include a guide surface that slides while a part of the plate body abuts when the plate body is rotated from the use state toward the housed state. .
In this way, the rotation operation and the slide operation can be reliably performed in parallel by guiding a part of the plate body with the guide surface.

The rotating member may be provided with a damper member that applies a damping force when the plate body slides.
By applying a damping force to the sliding movement of the plate by the damper member, it is possible to prevent the plate from sliding suddenly and to slide smoothly. Further, since the plate body slides while rotating, a damping force can be applied even during the rotating operation, and the operation becomes smoother.

  ADVANTAGE OF THE INVENTION According to this invention, the operation | movement which accommodates a board body from a use state can be performed easily and quality.

It is a figure which shows an example of the chair with a table which concerns on this embodiment, and is the perspective view which made the folding-type table the accommodation state. It is a figure which shows an example of the chair with a table which concerns on this embodiment, and is the perspective view which made the foldable table use state. It is a figure which shows the components structure of a foldable table, Comprising: It is the perspective view seen from the user side. It is a figure which shows the components structure of a foldable table, Comprising: It is the perspective view seen from the opposite side to FIG. It is the perspective view which shows the shape of a holder member, (a) is the perspective view which looked at the holder member from diagonally forward, (b) is the perspective view which looked at the holder member from diagonally back. It is the side view which looked at the holder member from the table top plate side. It is a figure which shows the shape of a rotation member, Comprising: (a) is the perspective view seen from the rotation plate part side, (b) is the perspective view seen from the guide block side, (c) is from the rotation plate part side. FIG. It is a figure which shows the assembly | attachment state of a holder member, a rotation member, and a damper unit, and is sectional drawing which looked at the support member in the cross section parallel to a slide rail. It is a perspective view which shows a supporting member when a table top plate exists in the accommodation state. It is a perspective view which shows a supporting member when it exists in the state (folded state) which pulled up the table top plate. It is a side view which shows a supporting member when it exists in the state (folded state) which pulled up the table top plate. It is a perspective view which shows a supporting member when a table top plate is in the middle of rotation. It is a side view which shows a supporting member when a table top plate is in the middle of rotation. It is a perspective view which shows a supporting member when a table top plate is in use. It is a side view which shows a supporting member when a table top plate is in use.

  Hereinafter, the best mode for carrying out furniture according to the present invention will be described with reference to the accompanying drawings. However, the present invention is not limited only to these examples.

1 and 2 are views showing an example of a chair (furniture) 10 with a table according to the present embodiment. FIG. 1 is a perspective view in which the table unit 20 is not used (stored), and FIG. 2 is a table. It is the perspective view which made the unit 20 the use condition. 3 and 4 are diagrams showing the component configuration of the table unit 20, in which FIG. 3 is a perspective view seen from the user side, and FIG. 4 is a perspective view seen from the opposite side to FIG.
In the following description, in a state where the user is seated on the table-equipped chair (furniture) 10, the side facing the front of the user may be referred to as “front”, and the opposite side may be referred to as “rear”.
As shown in FIGS. 1 and 2, a plurality of chairs 10 with a table are installed side by side in front, rear, left and right, for example, in a theater, an auditorium, a hall, a conference hall, a lecture room, etc., and are not shown on the floor surface. A backrest member (furniture main body) 12 provided via support legs and a seat surface portion 13 provided on the backrest member (furniture main body) 12 are provided. The table-equipped chair 10 includes a table unit 20 on the back surface of the backrest member 12.

  The table unit 20 provided in the backrest member 12 of the chair 10 with a table is fixed to the plate-shaped table top plate (plate body) 21 and the back surface (mounting surface) 12a of the backrest member 12, and the table top plate 21 is composed of a pair of holder units 22 and 22 that support both ends in the width direction.

As shown in FIGS. 1 to 4, slide rails (side end portions) 80 that are continuous along the side end portions of the table top plate 21 are screwed to both ends in the width direction of the table top plate 21. It has been.
In the slide rail 80, a rack groove 81 that is continuous in the axial direction is formed on a surface 80S of the table top plate 21 that faces away from the use surface 21a. At both ends in the axial direction of the rack groove 81, protrusions 82 a and 82 b are formed that protrude to the opposite side of the use surface 21 a of the table top plate 21.
Further, at one end of the slide rail 80 (the end close to the backrest member 12 with the use surface 21a of the table top 21 facing upward) 80a, the side opposite to the side facing the table top 21 The side surface 80b is provided with a columnar guide projection 83 that projects orthogonally from the side surface 80b.

  The holder units 22 and 22 slide the table top plate 21 around the axis connecting the holder units 22 and 22 and slide in the direction along the slide rail 80 at the side end of the table top plate 21. A use state in which the use surface 21a of the table top plate 21 is directed upward (see FIG. 2), and a jump in which the table top plate 21 is raised and the use surface 21a is opposed to the back surface 12a of the backrest member 12. A raised state (unused state) (see FIGS. 10 and 11) and a storage state (unused state) in which the table top plate 21 is slid downward with the table top 21 facing the back surface 12a from the raised state (unused state) (FIG. )), And the posture can be switched between.

Hereinafter, the configuration of the holder unit 22 will be described. Since the holder units 22 and 22 located on both sides of the table top plate 21 have a bilaterally symmetrical configuration, only the holder unit 22 on one side will be described, and the description of the holder unit 22 on the other side will be described. Omitted.
As shown in FIGS. 3 and 4, the holder unit 22 is provided with a holder member (support member) 30 that is fixed to the back surface 12 a of the backrest member 12, and pivotally supported by the holder member 30. A rotating member 50 that slidably supports the table top 21 and a damper unit (damper member) that is provided integrally with the rotating member 50 and provides a buffering effect on the sliding operation of the table top 21 with respect to the rotating member 50. 70.

5A and 5B are perspective views showing the shape of the holder member 30, wherein FIG. 5A is a perspective view of the holder member 30 as viewed obliquely from the front, and FIG. 5B is a perspective view of the holder member 30 as viewed obliquely from the rear. FIG. 6 is a side view of the holder member 30 as viewed from the table top plate 21 side.
As shown in FIGS. 5 and 6, the holder member 30 has a flat mounting surface 31 facing the back surface 12 a of the backrest member 12 on one surface side. The attachment surface 31 has a rectangular shape that is long in the vertical direction.
A recess 32 having a predetermined depth in a direction orthogonal to the mounting surface 31 is formed on a part of the mounting surface 31. As shown in FIG. 4, a connection plate 23 for connecting the holder members 30, 30 located on both sides of the table top plate 21 is fixed to the recess 32. For this reason, the recessed part 32 is formed in the depth equivalent to the plate | board thickness of the connection plate 23, and if the edge part 23a of the connection plate 23 is engage | inserted in the recessed part 32, the connection plate 23 and the surrounding attachment surface 31 will be referred to. Is almost flat. A screw hole 32 b is formed in the recess 32. On the other hand, a through hole 23 h is formed in the connection plate 23, and the end 23 a of the connection plate 23 is fixed to the holder member 30 by screwing the screw 24 into the screw hole 23 b through the through hole 23 h.

  The holder member 30 is directed from one end 30a on the back surface 12a side of the backrest member 12 to the other end 30b on the side away from the back surface 12a of the backrest member 12 with the mounting surface 31 being along the back surface 12a of the backrest member 12. Thus, it is formed in a substantially D shape in side view so that the length in the vertical direction is gradually reduced. Thereby, the holder member 30 which protrudes from the back surface 12a of the backrest member 12 is miniaturized as much as possible.

The holder member 30 has a planar side surface portion 33 that rises so that the side opposite to the side facing the table top plate 21 is perpendicular to the back surface 12 a of the backrest member 12.
An outer peripheral surface portion 34 orthogonal to the side surface portion 33 is formed along the outer peripheral edge portion of the side surface portion 33. As shown in FIGS. 5 and 6, bolt insertion holes 35 that are continuous toward the mounting surface 31 are formed in the outer peripheral surface portion 34 at, for example, two locations. In each bolt insertion hole 35, a seat surface 35a against which the head portion 36b of the fixing bolt 36 abuts is formed by expanding the inner diameter thereof.
The holder bolt 30 is fixed to the back surface 12 a of the backrest member 12 by inserting a fixing bolt 36 into each bolt insertion hole 35 and screwing the tip portion into a screw hole (not shown) formed in the back surface 12 a of the backrest member 12. Is done.

  The holder member 30 has a reference surface 40, an accommodation recess 41, a rotation shaft 42, a top plate stopper portion 43, a guide groove 44, and a top plate guide block portion 45 on the side facing the table top plate 21. And are formed.

The reference surface 40 is formed in parallel with the side surface portion 33 on the opposite side.
The housing recess 41 is recessed toward the side surface 33 with respect to the reference surface 40 and houses a part of the rotating member 50. The housing recess 41 includes a bottom surface 41a parallel to the reference surface 40 and a peripheral wall portion 41b that rises orthogonally from the outer peripheral portion of the bottom surface 41a.

A rotation shaft 42 that rotatably supports the rotation member 50 is provided on the bottom surface 41a so as to rise perpendicular to the bottom surface 41a.
On the peripheral wall portion 41b, arc-shaped surfaces 46A and 46B are formed on one side and the other side of the rotation shaft 42 so as to form an arc shape around the rotation shaft 42, respectively. Further, when the rotating member 50 rotates in one direction around the rotating shaft 42 (see FIG. 11), a part of the rotating member 50 abuts on one end side of the arcuate surface 46B in the peripheral wall portion 41b. Thus, the first angle restricting portion 47A for restricting the rotation angle is formed. Further, on the other end side of the arcuate surface 46B in the peripheral wall portion 41b, when the rotating member 50 rotates around the rotating shaft 42 in the other direction (see FIG. 15), a part of the rotating member 50 is formed. A second angle restricting portion 47B that restricts the rotation angle is formed by abutting. Here, the first angle restricting portion 47A and the second angle restricting portion 47B are formed in a shape that matches the outer peripheral shape of the rotating member 50 described later.

The top plate stopper portion 43 is provided on the outer peripheral side of the housing recess 41 and is provided so as to protrude from the reference surface 40 toward the side opposite to the side surface portion 33.
The top plate stopper portion 43 is formed with a first stopper surface 43a facing vertically downward in a state where the holder member 30 is fixed to the back surface 12a of the backrest member 12. The first stopper surface 43a allows the table top plate 21 to be in a use state in which the use surface 21a faces upward from a jumping state in which the use surface 21a is opposed to the back surface 12a of the backrest member 12. When rotated in one direction (see FIGS. 14 and 15), one end 80a of the slide rail 80 provided on the table top plate 21 comes into contact.
The top plate stopper portion 43 is formed with a screw hole 43h penetrating from the outer peripheral surface portion 34 of the holder member 30 to the first stopper surface 43a. As shown in FIGS. 3 and 4, it is also possible to screw the tube screw 49 into the screw hole 43h and project it from the first stopper surface 43a so that the one end 80a of the slide rail 80 abuts there. In this case, the angle of the table top plate 21 in use can be adjusted by adjusting the amount of protrusion of the grommet 49 from the first stopper surface 43a. Here, it is preferable that the screw hole 32h into which the female screw 49 is screwed is closed with a cover lid 49C or the like.
The top plate stopper portion 43 is formed with a second stopper surface 43b substantially parallel to the back surface 12a in a state where the holder unit 22 is fixed to the back surface 12a of the backrest member 12. The second stopper surface 43b is a jumping device in which the table top plate 21 is moved from the use state in which the use surface 21a faces upward, as shown in FIGS. 10 and 11, with the use surface 21a facing the back surface 12a of the backrest member 12. When the table top plate 21 is rotated in the other direction so as to be in the raised state, the slide rails 80 provided on the table top plate 21 come into contact with each other.

As shown in FIG. 6, the guide groove 44 is formed continuously with the reference surface 40 on the outer peripheral side of the housing recess 41. Here, the guide groove 44 is formed so as to be separated from the rotation shaft 42 toward the outer peripheral side as it goes downward from the upper end portion 44 a toward the lower end portion 44 b, and the lower end portion 44 b is the outer peripheral portion of the holder member 30. The opening is formed facing downward. Specific shapes of the guide groove 44 from the upper end portion 44a to the lower end portion 44b are, for example, a linear portion 44c extending downward from the upper end portion 44a in parallel with the second stopper surface 43b of the top plate stopper portion 43, and a linear portion 44c. A first curved portion 44d curved forward as it goes downward from the first curved portion, a second curved portion 44e curved toward the opposite side from the first curved portion 44d as it goes downward from the first curved portion 44d, A linear portion 44f extending downward in parallel with the second stopper surface 43b of the top plate stopper portion 43 from the lower end portion of the two curved portions 44e is provided. As a result, the guide groove 44 is disposed such that the lower end 44b is offset forward with respect to the upper end 44a. Further, the lower end 44b of the guide groove 44 opens in a direction parallel to the second stopper surface 43b.
A guide protrusion 83 provided on the slide rail 80 is inserted into the guide groove 44, and the guide protrusion 83 is guided by the guide groove 44 when the table top plate 21 is rotated between the jumped-up state and the use state. To move along.
In this way, the guide groove 44 and the guide protrusion 83 function as a guide mechanism 48 that guides the movement locus when the table top plate 21 is rotated.

The top plate guide block portion 45 is provided on the outer peripheral side of the guide groove 44 so as to protrude from the reference surface 40 toward the side opposite to the side surface portion 33. The top plate guide block 45 has a guide surface 45 a formed in a shape along the guide groove 44. That is, the guide surface 45a is curved from the upper side to the lower side, the straight part 45c extending downward in parallel with the second stopper surface 43b of the top plate stopper part 43, and the front part as it goes downward from the straight part 45c. The first curved portion 45d, the second curved portion 45e that curves to the opposite side of the first curved portion 45d as it goes downward from the first curved portion 45d, and the top stopper from the lower end of the second curved portion 45e The linear part 45f extended below in parallel with the 2nd stopper surface 43b of the part 43 is provided.
The guide surface 45a functions as a guide mechanism 48 that restricts the movement locus of one end 80a of the slide rail 80 when the table top plate 21 is rotated (see FIGS. 12 and 13). Here, the upper end of the guide surface 45a is a top plate movement restricting portion 45b for restricting the table top plate 21 from sliding in a direction approaching the back surface 12a when the table top plate 21 is in use. Has been.
In the present embodiment, the guide groove 44 and the guide surface 45a, which are the guide mechanism 48, are formed on the guide protrusion 83 and the slide rail 80 when the table top plate 21 is moved from the use state to the storage state through the flip-up state. The one end portion 80a is formed so as to draw a movement trajectory that descends downward while rotating about the rotation shaft 42.

7A and 7B are views showing the shape of the rotation member 50, where FIG. 7A is a perspective view as viewed from the rotation plate portion 51 side, FIG. 7B is a perspective view as viewed from the guide block portion 53 side, and FIG. ) Is a side view seen from the rotating plate portion 51 side. FIG. 8 is a view showing an assembled state of the holder member 30, the rotating member 50, and the damper unit 70, and is a cross-sectional view of the holder unit 22 as seen in a cross section parallel to the slide rail 80.
As shown in FIGS. 7 and 8, the rotation member 50 accommodates the damper plate 70 formed in the rotation plate portion 51 accommodated in the accommodation recess 41 of the holder member 30 and the rotation plate portion 51. The damper accommodating part 52 and the guide block part 53 which guides the slide rail 80 provided in the table top plate 21 are provided integrally.

The rotating plate portion 51 has the same left-right dimension as the depth of the housing recess 41. In the rotation plate portion 51, a shaft insertion hole 54 into which the rotation shaft 42 is inserted is formed on the facing surface 51 a that faces the bottom surface 41 a of the housing recess 41. The rotation plate portion 51 is accommodated in the accommodation recess 41 in a state where the rotation shaft 42 is inserted into the shaft insertion hole 54, and is rotatable about the rotation shaft 42.
In the rotating plate portion 51, an outer peripheral wall portion 51b orthogonal to the opposing surface 51a in the outer peripheral portion of the opposing surface 51a is formed in an arc shape centering on the shaft insertion hole 54 and is an arcuate surface 58A along the arcuate surface 46A. And an arcuate surface 58B along the arcuate surface 46B.
Further, on the outer peripheral wall portion 51b of the rotating plate portion 51, on the one end side of the arcuate surface 58B, when the rotating plate portion 51 rotates in one direction around the rotating shaft 42 (see FIG. 11), A contact surface 59A that abuts against the angle restricting portion 47A is formed. Further, on the other end side of the arcuate surface 58B in the outer peripheral wall portion 51b, when the rotating plate portion 51 rotates in the other direction around the rotating shaft 42 (see FIG. 15), the second angle restricting portion 47B An abutting contact surface 59B is formed. These contact surfaces 59A and 59B are formed along the first angle restricting portion 47A and the second angle restricting portion 47B.
In this way, the rotation member 50 has a position where the contact surface 59A hits the first angle restricting portion 47A and the contact surface 59B, with the rotation plate portion 51 in the housing recess 41 and the rotation shaft 42 as the center. It can swing between the position where it abuts against the second angle restricting portion 47B.

A damper accommodating portion 52 that accommodates the damper unit 70 is formed on the opposing surface 51 a of the rotating plate portion 51. Here, as shown in FIG. 3, the damper unit 70 includes a cylindrical main body 71 having a built-in rotary damper mechanism, and a pinion gear 73 provided at the tip of the rotating shaft protruding from the main body 71. Yes. The main body 71 is formed with mounting flange portions 74 and 74 projecting outward. The damper unit 70 applies a damping force to the rotation around the axis on which the pinion gear 73 is provided by a damper mechanism built in the main body 71.
As shown in FIG. 7, the damper accommodating portion 52 includes a main body accommodating portion 52a for accommodating the main body 71 of the damper unit 70 formed on the facing surface 51a side, and a rotating plate portion 51 extending from the bottom of the main body accommodating portion 52a. A shaft receiving hole 52b is formed through the side surface 51c opposite to the facing surface 51a and through which the pinion gear 73 provided on the rotating shaft of the damper unit 70 passes. On the outer peripheral side of the main body housing portion 52a, recesses 52c and 52c for housing the mounting flange portion 74, and screw holes 52d are formed.
With respect to such a damper accommodating part 52, the damper unit 70 accommodates the main body 71 in the main body accommodating part 52a and the through hole formed in the mounting flange part 74 in a state where the mounting flange part 74 is accommodated in the recess 52c. The mounting screw 75 is fixed by screwing into the screw hole 52d. In this state, as shown in FIG. 8, the pinion gear 73 of the damper unit 70 penetrates the side surface 51 c on the opposite side of the rotating plate portion 51 and is exposed to the outside, and inside the recess 56 c formed in the main block 56. It is supposed to be located. The pinion gear 73 is configured to mesh with the rack groove 81 of the slide rail 80.

As shown in FIG. 7, the guide block portion 53 is formed so as to protrude from the side surface 51c of the rotating plate portion 51 to the opposite side to the facing surface 51a. The guide block portion 53 includes a main block 56 having a guide surface 55 along the slide rail 80 and a pivot block 57 formed to be separated from the main block 56 in the direction along the side surface 51c. .
The guide surface 55 of the main block 56 has a first guide surface 55a and a second guide surface 55b.
The first guide surface 55a has an angle (substantially horizontal) at which the table top plate 21 is to be supported in a state where the contact surface 59B of the rotating plate portion 51 abuts against the second angle restricting portion 47B (see FIG. 15). It is formed as follows.
The second guide surface 55b is formed in accordance with the angle at which the table top plate 21 is to be accommodated in a state where the contact surface 59A of the rotating plate portion 51 abuts against the first angle restricting portion 47A (see FIG. 11). It is formed to be parallel to the second stopper surface 43 b of the top plate stopper portion 43. The second guide surface 55b is formed to be inclined toward the storage state side by a predetermined angle θ1 with respect to the first guide surface 55a. Here, in a state where the contact surface 59A of the rotating plate portion 51 is abutted against the first angle regulating portion 47A, the inclination angle θ1 of the second guide surface 55b with respect to the first guide surface 55a is, for example, 10 to 30 °. It is set to an acute angle.

  The first guide surface 55a and the second guide surface 55b of the main block 56 also function as stoppers that restrict the movement stroke of the slide rail 80 by interfering with the protrusions 82a and 82b of the slide rail 80. It has become.

  FIG. 9 is a perspective view showing the holder unit 22 when the table top plate 21 is in the stored state. FIG. 10 is a perspective view showing the holder unit 22 when the table top plate 21 is in a state where it is pulled up (in a jumping state). FIG. 11 is a side view showing the holder unit 22 when the table top plate 21 is in a state where it is pulled up (in a jumping state). FIG. 12 is a perspective view showing the holder unit 22 when the table top plate 21 is in the middle of rotation. FIG. 13 is a side view showing the holder unit 22 when the table top plate 21 is in the middle of rotation. FIG. 14 is a perspective view showing the holder unit 22 when the table top 21 is in use. FIG. 15 is a side view showing the holder unit 22 when the table top 21 is in use.

(Stored state)
In the chair 10 with a table configured as described above, the table unit 20 has the use surface 21a on the back surface of the backrest member 12 in the housed state as shown in FIG. It is in a state of sliding downward while facing 12a.
As shown in FIG. 9, in this state, in the rotating member 50, the contact surface 59 </ b> A of the rotating plate portion 51 abuts on the first angle restricting portion 47 </ b> A formed in the housing recess 41 of the holder member 30. Further, the second guide surface 55 b of the rotating member 50, the second stopper surface 43 b of the top plate stopper portion 43, and the guide surface 45 a of the top plate guide block portion 45 are along both sides of the slide rail 80.

(Pull up action)
When a user seated in the back row uses the table unit 20 from this state, the table top plate 21 is first lifted upward as shown in FIGS. At this time, the slide rail 80 is formed on both sides by the second guide surface 55b of the rotating member 50, the second stopper surface 43b of the top plate stopper portion 43 of the holder member 30, and the guide surface 45a of the top plate guide block portion 45, respectively. Is moved upward in a guided state (a jumping state).
Then, the guide protrusion 83 provided on the slide rail 80 enters the lower end 44 b of the guide groove 44.

(Pull-down operation)
Subsequently, as shown in FIGS. 12 and 13, the table top plate 21 is rotated forward from the state in which the table top plate 21 is jumped up.
At this time, first, only the slide rail 80 provided on the table top plate 21 rotates prior to the rotating member 50 until it abuts against the first guide surface 55 a of the rotating member 50. At this time, the slide rail 80 rotates around the top portion 56p between the first guide surface 55a and the second guide surface 55b of the main block 56 while being guided by the pivot block 57 of the rotation member 50.
Then, after the slide rail 80 abuts against the first guide surface 55 a, the rotating member 50 is integrated with the slide rail 80 of the table top plate 21 around the rotating shaft 42 in the accommodating recess 41 of the holder unit 22. Rotate.

During the rotation of the table top plate 21, the guide protrusion 83 of the slide rail 80 is guided along the guide groove 44 of the holder member 30, and the one end portion 80 a of the slide rail 80 is guided by the guide surface of the top plate guide block portion 45. Guided along 45a. Here, when the center of the rotation shaft 42 that is the rotation axis of the rotation member 50 is used, the guide projection 83 is positioned at the lower end 44b of the guide groove 44 immediately before the rotation starts (FIG. 11). The circles passing through the positions of the guide protrusion 83 and the one end portion 80a of the slide rail 80 in the reference) are defined as virtual circles C1 and C2. Then, the guide surface 45a formed along the guide groove 44 and the guide groove 44 is formed so as to be separated from the virtual circles C1 and C2 toward the inner peripheral side as going upward. Further, the slide rail 80 is rotatable and slidable with respect to the rotation member 50. Therefore, when the table top plate 21 is to be pulled down, the guide protrusion 83 on the side close to the center of the rotation shaft 42 and the one end 80a of the slide rail 80 are guided by the guide groove 44 and the guide surface 45a. As the guide protrusion 83 and the one end portion 80a of the slide rail 80 are displaced upward, the guide projection 83 and the one end portion 80a gradually displace toward the inner peripheral side and approach the rotating shaft 42. Thereby, the table top plate 21 slides to the user side (front) while rotating in the direction to be pulled down.
Further, when the slide rail 80 slides during the rotation of the table top plate 21, the pinion gear 73 that meshes with the rack groove 81 of the slide rail 80 rotates, and the damper mechanism of the main body 71 of the damper unit 70 operates. . Therefore, since the rotation operation of the table top plate 21 performed in parallel with the slide operation of the slide rail 80 is also attenuated by the damper unit 70, the operation of tilting the table top plate 21 forward can be performed smoothly and with high quality. This eliminates the need to separately provide a dedicated damper that acts on the rotating operation.

(Use state)
Then, as shown in FIGS. 13 and 14, the contact surface 59 </ b> B formed on the rotation plate portion 51 of the rotation member 50 abuts against the second angle regulating portion 47 </ b> B formed on the accommodation recess 41 of the holder member 30. Then, the rotation operation of the rotation member 50 and the table top plate 21 is restricted.
In this state, the slide rail 80 is supported by the upper and lower surfaces thereof being abutted against and supported by the first stopper surface 43a (or the thumbscrew 49) of the holder member 30 and the first guide surface 55a of the rotating member 50. 21a is supported in a use state facing upward. Further, in this state, the protruding portion 82 a provided on the slide rail 80 is accommodated between the second guide surface 55 b of the rotating member 50 and the slide rail 80.

(Bounce-up operation from use state)
In order to jump up and store the table top plate 21 from the use state, the front side of the table top plate 21 is jumped upward, contrary to the above procedure. At this time, since the protrusion 82a provided on the slide rail 80 abuts against the second guide surface 55b of the rotating member 50, the table top plate 21 and the rotating member 50 rotate integrally.
As shown in FIGS. 12 and 13, the guide projection 83 of the slide rail 80 is guided along the guide groove 44 of the holder member 30 and the one end of the slide rail 80 during the rotation of the table top plate 21. 80a is guided along the guide surface 45a of the top plate guide block 45. Here, when the rotation shaft 42 is the center of the rotation shaft of the rotation member 50, the guide projection 83 is positioned at the upper end 44a of the guide groove 44 immediately before the rotation starts (FIG. 15). The circles that pass through the positions of the guide projection 83 and the one end portion 80a of the slide rail 80 in the reference) are defined as virtual circles C3 and C4. Then, the guide surface 45a formed along the guide groove 44 and the guide groove 44 is formed so as to be separated from the virtual circles C3 and C4 toward the outer peripheral side as going downward. Therefore, when the table top plate 21 is to be lifted from the use state, the guide protrusion 83 and the one end portion 80a of the slide rail 80 are guided by the guide groove 44 and the guide surface 45a. As the one end portion 80a is displaced downward, the one end portion 80a is gradually displaced toward the outer peripheral side and is separated from the rotating shaft 42.
Thereby, the table top plate 21 slides downward while rotating in the direction in which it is flipped up. As a result, the slide rail 80 slides during the rotation operation, so that the protruding portion 82a is separated from the position where it comes into contact with the second guide surface 55b of the rotation member 50.
At this time, since the upper portions of the guide groove 44 and the guide surface 45a are the straight portions 44c and 45c, the guide protrusion 83 and the one end portion 80a of the slide rail 80 are in a virtual circle at the initial stage of the rotating operation of the table top plate 21. Quickly separate from C3 and C4 to the outer peripheral side. Therefore, the rotation of the table top plate 21 and the downward sliding are easily performed in parallel. Since the first curved portion 44d is formed at the intermediate portion between the guide groove 44 and the guide surface 45a, the downward movement speed of the guide projection 83 and the one end portion 80a of the slide rail 80 is reduced, and the table top A sudden drop of the plate 21 can be suppressed.
Further, when the slide rail 80 slides during the rotation of the table top plate 21, the pinion gear 73 that meshes with the rack groove 81 of the slide rail 80 rotates, and the damper mechanism of the main body 71 of the damper unit 70 operates. . Therefore, since the rotation operation of the table top plate 21 performed in parallel with the slide operation of the slide rail 80 is also attenuated by the damper unit 70, the operation of jumping up the table top plate 21 can be performed smoothly and with high quality. .

(Jumping state)
As shown in FIGS. 10 and 11, the contact surface 59 </ b> A formed on the rotating plate portion 51 of the rotating member 50 abuts on the first angle regulating portion 47 </ b> A formed on the housing recess 41 of the holder member 30. Then, the turning operation of the turning member 50 and the table top plate 21 in the jumping-up direction is restricted. Thereby, the table top plate 21 is in a state where the use surface 21 a is opposed to the back surface 12 a side of the backrest member 12.
Further, in this state, the slide rail 80 is formed on both sides thereof by the second guide surface 55 b of the rotating member 50, the second stopper surface 43 b of the top plate stopper portion 43, and the guide surfaces 45 a of the top plate guide block portion 45. Is in a guided state (a jumping state).

(Descent operation to the storage state)
Thereafter, when the table top plate 21 is lowered, the slide rail 80 moves the second guide surface 55 b of the rotating member 50, the second stopper surface 43 b of the top plate stopper portion 43, and the guide of the top plate guide block portion 45. The surface 45a is lowered while being guided on both sides thereof.
At this time, the slide of the slide rail 80 operates the damper mechanism of the damper unit 70, and the lowering operation of the table top plate 21 is attenuated by the damper unit 70. As a result, the slide rail 80 can be prevented from suddenly falling and the descending operation can be performed smoothly and with high quality.
Then, as shown in FIG. 9, the projection 82 b provided on the other end of the slide rail 80 abuts against the main block 56 of the guide block 53 of the rotating member 50, so that the table top plate 21 is lowered. Is regulated. As a result, the table top plate 21 is stored with the use surface 21 a facing the back surface 12 a of the backrest member 12.

According to the configuration as described above, the holder unit 22 has the second angle restricting portion 47B that restricts the rotation angle of the rotating member 50 by abutting against the rotating member 50 when the table top 21 is in use. And a first stopper surface 43a that regulates the angle of the table top 21 by abutting when the table top 21 is in use. The rotating member 50 abuts against the table top plate 21 when the table top plate 21 is in use, and is stored in the first guide surface 55a that supports the table top plate 21 and the first guide surface 55a. And a second guide surface 55b that is inclined to the side by a predetermined angle and abuts against the table top 21 when the table top 21 is in the stored state. When the table top plate 21 is rotated from the stored state to the use state, the table top plate 21 is separated from the second guide surface 55b and is rotated by a predetermined angle θ1, and hits the first guide surface 55a. In this state, the table top plate 21 rotates integrally with the rotation member 50.
With such a configuration, when the table top plate 21 is rotated from the housed state to the use state, only the table top plate 21 that has been in contact with the second guide surface 55b is rotated and the second table surface 55b is The first stage until the table top 21 abuts against the first guide surface 55a and the second stage where the table top plate 21 contacts the first guide surface 55a and rotates together with the rotating member 50 is performed. It will be. In this way, the table top plate 21 rotates in two stages. As shown in FIG. 11, in the first stage, there is a gap S between the table top 21 and the first guide surface 55a. The gap S is the second guide surface 55b with respect to the first guide surface 55a. It is possible to make the user's finger difficult to get caught.
In the second stage, the table top plate 21 rotates integrally with the rotating member 50. However, the rotation angle of the rotating member 50 from the housed state to the use state depends on the table top plate in the first stage. Since only 21 is rotating, the size can be reduced accordingly. Therefore, the gap formed around the rotating member 50 can be small, and it is difficult for the user's finger to be caught in this respect.

  Further, when the use surface 21a is directed upward, the table top 21 is supported by the first guide surface 55a provided on the rotating member 50 and the first stopper surface 43a provided on the holder unit 22. . For this reason, the support strength of the table top plate 21 can be increased. As a result, it is possible to prevent the holder unit 22 from becoming large and impairing the appearance, or the holder unit 22 from greatly protruding from the chair 10 to reduce the number of chairs 10 that can be juxtaposed in the effective space.

Further, the rotating member 50 supports the table top plate 21 so as to be slidable along the slide rail 80 at the side end of the table top plate 21, and the holder unit 22 is used when the table top plate 21 is in use. Further, the table top plate 21 is provided with a top plate movement restricting portion 45b for restricting the table top plate 21 from moving in the direction approaching the back surface 12a.
With such a configuration, the table top plate 21 is restricted in sliding movement by the top plate movement restricting portion 45b only when it is in use, and during the rotation between the use state and the storage state or in the storage state In this case, the restriction by the top plate movement restricting portion 45b is released, and the table top plate 21 can be slid.

When the table top 21 is rotated from the use state to the storage state, the table top 21 is rotated in parallel with the downward movement of the table top 21. 21 is provided.
Thereby, after rotating the table top plate 21 from the use state in which the use surface 21a is directed upward, the use surface 21a is opposed to the back surface 12a of the backrest member 12, and then the table top plate 21 is further lowered while facing the back surface 12a. When the table top 21 is slid and stored, the table top 21 can be moved in a short time by performing the rotation operation and the slide operation of the table top 21 in parallel with each other in two steps. 21 can be stored. Further, since the rotation operation and the slide operation are performed in parallel, the operation of the table top plate 21 becomes smooth and high quality. Furthermore, when the rotation operation is completed, a part of the slide operation is completed, so that the moving stroke of the slide operation performed thereafter can be small. Thereby, it is possible to reduce an impact or the like generated when the table top plate 21 slides downward.

The guide mechanism 48 includes a guide groove 44 formed in the holder unit 22 and a guide protrusion 83 provided in the table top plate 21 and inserted into the guide groove 44.
In such a guide mechanism 48, when the table top plate 21 is rotated, the guide protrusion 83 provided on the table top plate 21 is guided along the guide groove 44, thereby rotating and sliding. Can be reliably performed in parallel.

Furthermore, the guide mechanism 48 includes a guide surface 45a that slides while a part of the table top 21 abuts when the table top 21 is rotated from the use state toward the storage state. As described above, by guiding a part of the table top plate 21 with the guide surface 45a, the rotation operation and the slide operation can be reliably performed in parallel.
Moreover, the guide groove 44 and the guide surface 45a which comprise the guide mechanism 48 have linear part 44c, 45c and 44f, 45f at the upper and lower ends which are the both ends of a guidance range at least. Therefore, the entire length of the guide groove 44 and the guide surface 45a is formed in an arc shape, and the size of the guide mechanism 48 in the front-rear direction is suppressed as compared with a configuration in which the table top plate 21 is separately rotated and slid. Can do. Thereby, the size of the holder unit 22 in the front-rear direction can be reduced. As a result, it is possible to prevent the holder unit 22 from becoming large and impairing the appearance, or the holder unit 22 from greatly protruding from the chair 10 to reduce the number of chairs 10 that can be juxtaposed in the front-rear direction in the effective space.
Further, in the guide mechanism 48, the guide groove 44 and the guide surface 45a constituting the guide mechanism 48 are provided with first curved portions 44d and 45d at an intermediate portion in the vertical direction. The moving speed downward of the one end portion 80a is decelerated, and a sudden drop of the table top plate 21 can be suppressed.

  The rotating member 50 is provided with a damper unit 70 that applies a damping force when the table top plate 21 slides. Thereby, a damping force is applied to the sliding movement of the table top 21 by the damper unit 70, and the table top 21 can be prevented from sliding suddenly and can be smoothly slid. Further, a damping force can be applied to the table top 21 even when the table top 21 rotates or slides while rotating.

  In addition, when the rotating member 50 rotates around the rotating shaft 42, the arc-shaped surface 58b is along the arc-shaped surface 46B of the housing recess 41, so that the load of the rotating member 50 is rotated. The moving shaft 42 and the arcuate surface 46B are supported at two points. In this manner, the load is prevented from concentrating on the rotating shaft 42, and the load can be distributed and supported. In this manner, the contact area of the rotating member 50 with the holder member 30 can be increased, and the support strength of the table top 21 can be increased in this respect.

(Other embodiments)
The present invention is not limited to the above-described embodiment described with reference to the drawings, and various modifications can be considered within the technical scope thereof.
For example, in the above embodiment, the outer diameter shape of the rotating member 50 has a shape along the main body 71 of the damper unit 70. However, the shape is not limited to this, and other shapes may be used as appropriate. .
Further, depending on the area and weight of the table top plate 21, a damper unit that acts when the table top plate 21 is rotated in the direction of pulling from the flip-up state to the use state may be provided separately.
Moreover, although the slide rail 80 is provided along the side edge part of the table top plate 21, if the rotation member 50 is slidably movable along the side edge part, the slide rail 80 will be provided. The provided position may be set arbitrarily.

Further, the guide protrusion 83 that moves along the guide groove 44 may be provided with a ball bearing or the like at the tip, for example, so as to suppress the frictional resistance with the guide groove 44.
Further, the guide groove 44 restricts the movement trajectory of the one end portion 80a of the slide rail 80 provided with the guide projection 83 when the table top plate 21 is rotated. As the projection 83 and the one end portion 80a of the slide rail 80 go downward, the guide projection 83 and the one end portion 80a of the slide rail 80 are moved upward when the table top plate 21 is moved away from the rotating shaft 42. As it goes, it is preferable to approach the rotating shaft 42 on the inner peripheral side, and the shape is not limited at all. For example, when the straight portions 44c and 45c are lengthened and the table top 21 is flipped up from the use state, the table top 21 may be slid downward earlier in the initial stage of the rotation operation. Moreover, it is good also as a structure which can make the curvature radius of the 1st curved parts 44d and 45d small, and can reduce the descending speed of the table top plate 21 more effectively.
Further, for example, the linear grooves 44c and 45c may not be provided in the guide groove 44 or the guide surface 45a, and the entire region may be formed in a gentle curved shape. However, in this case, since the holder unit 22 becomes large in the front-rear direction, the holder unit 22 greatly protrudes from the chair 10 and the number of chairs 10 that can be juxtaposed in the front-rear direction in the effective space may be reduced. is there.
In addition to this, the shape of the guide groove 44 and the guide surface 45a can be appropriately set in consideration of the area and weight of the table top plate 21 and the play during operation.
Moreover, in the said embodiment, although the guide groove | channel 44 and the guide surface 45a guided the guide protrusion 83 and the one end part 80a of the slide rail 80, it is set as the structure provided with only one of the guide groove | channel 44 and the guide surface 45a. You can also

  In addition, you may make it abut on the outer peripheral part of the main block 56 of the rotation member 50 instead of abutting the protrusion part 82a on the 2nd guide surface 55b of the rotation member 50, for example. In such a configuration, when the front side of the table top plate 21 is flipped upward, only the table top plate 21 (slide rail 80) is rotated first, and the slide rail 80 is rotated by the rotation member 50. After abutting against the second guide surface 55b, the table top plate 21 and the rotation member 50 rotate integrally.

  In the above embodiment, when the table top 21 is shifted from the use state to the stored state, the table top 21 (slide rail 80) is first slid while rotating, and then the table top 21 is further moved. However, the present invention is not limited to this, and the table top plate 21 may be slid while being rotated, and the state where the rotation operation is completed may be set as the storage state.

In addition, the shape and structure of each component shown in the above embodiment can be changed as appropriate.
In the above embodiment, only one chair 10 with a table is illustrated and described, but a plurality of such chairs 10 with a table may be connected to form an integrated unit.
Moreover, since the chair 10 with a table is not installed in the front in the chair 10 with a table of the front row, the support plate which supports the table unit 20 in the front for the user of the chair 10 with a table in the front row A support leg may be provided, and the table unit 20 may be installed on the support leg.
Furthermore, the present invention can be applied to any other furniture as long as it has a flip-up type plate body as well as the chair 10 with a table.
In addition, in the above embodiment, the table top plate 21 is given as an example of the plate body in the present invention, but the present invention is not limited to this. For example, in the case of a chair of a type in which the seat is flipped up and seated, the seat is supported You may apply the structure similar to the said embodiment to the mechanism to perform.
In addition to this, as long as it does not depart from the gist of the present invention, the configuration described in the above embodiment can be selected or changed to another configuration as appropriate.

10 Chair with table (furniture)
11 Support leg 12 Back member (Furniture body)
12a Back (mounting surface)
20 Table unit 21 Table top plate (plate)
21a Use surface 22 Holder unit 30 Holder member (support member)
31 Mounting surface 40 Reference surface 41 Housing recess 41a Bottom surface 41b Peripheral wall portion 42 Rotating shaft 43 Top plate stopper portion 43a First stopper surface 43b Second stopper surface 44 Guide groove 45 Top plate guide block portion 45a Guide surface 45b Top plate movement restriction Portions 46A, 46B Arcuate surface 47A First angle restricting portion 47B Second angle restricting portion 48 Guide mechanism 50 Rotating member 51 Rotating plate portion 52 Damper accommodating portion 53 Guide block portion 54 Shaft insertion hole 55 Guide surface 55a First guide Surface 55b Second guide surface 56 Main block 56a Curved surface 56c Recessed portion 57 Pivot blocks 58A, 58B Arc-shaped surfaces 59A, 59B Contact surfaces 60A, 60B Stopper portion 70 Damper unit (damper member)
71 Body 72 Rotating shaft 73 Pinion gear 80 Slide rail (side end)
80a One end portion 80b Side surface 81 Rack grooves 82a and 82b Protruding portion 83 Guide protrusion

Claims (8)

The furniture is switchable between a use state in which the plate body is rotatably supported by the furniture body and the use surface of the plate body faces upward and a storage state in which the use surface faces the attachment surface of the furniture body. And
A support member fixed to the furniture body;
A rotation member that is rotatably provided on the support member, and that supports the plate body slidably in a direction along a side end of the plate body;
When the plate body is rotated from the use state toward the stored state, the plate body is guided so that the rotation operation of the plate body and the sliding operation of the plate body downward are performed in parallel. A guiding mechanism to
Furniture characterized by comprising. The guide mechanism is
When the plate body is rotated from the housed state toward the use state, the one end portion of the plate body on the side close to the rotation center of the rotation member is gradually displaced as the plate member is displaced upward. Guide them closer to the center of motion,
When the plate body is rotated from the stored state toward the use state, one end portion of the plate body is guided to gradually move away from the rotation center as it is displaced downward. The furniture according to claim 1. The guide mechanism is
When rotating the plate body from the stored state toward the use state, the plate body passes through one end portion of the plate body just before the start of rotation and is on the inner peripheral side of a virtual circle centered on the rotation center. Move the one end of the body,
When the plate body is rotated from the use state toward the housed state, the plate body passes through one end portion of the plate body immediately before the start of rotation and is on the outer peripheral side of a virtual circle centered on the rotation center. The furniture according to claim 1, wherein the one end of the furniture is moved.   The said guide mechanism is equipped with the linear part of the up-down direction which makes the said board slide-operate linearly at the both ends of the guide range of the said board, The any one of Claim 1 to 3 characterized by the above-mentioned. Furniture described in.   The furniture according to claim 4, wherein the guide mechanism includes a curved portion that slides the plate body in a curved shape at an intermediate portion of the guide range of the plate body. The guide mechanism has a guide groove formed in the support member;
The furniture according to claim 1, further comprising: a guide protrusion provided on the plate body and inserted into the guide groove.   The guide mechanism includes a guide surface that slides while a part of the plate body abuts when the plate body is rotated from the use state toward the storage state. The furniture according to any one of 1 to 6.   The furniture according to any one of claims 1 to 7, wherein the rotating member is provided with a damper member that applies a damping force when the plate body slides.

Images