JP5416514B2 - Individual chair with small desk - Google Patents

Description

  The present invention relates to an individual chair with a small desk, and more particularly to an individual chair with a small desk that is not folded but can be stacked or stacked.

  In general conference halls, various seats can be rearranged, and the chairs on which participants sit are made up of individual chairs that are used when taking notes. Many are also attached.

  When not in use, this type of individual chair with a small desk can be stored in a compact place where appropriate by stacking (stacking vertically) or nesting (stacking horizontally like a supermarket cart). There is also. Of course, it is necessary to keep the attached desks out of the way during stacking and nesting.

  Patent Documents 1 to 3 and the like have proposed such chairs that can be stacked and nested and have a desk.

JP-A-8-24081, abstract Japanese Patent Laid-Open No. 10-113243, summary JP 2005-245868, abstract

  In Patent Document 1, “a chair memo stand mounting device for attaching a memo stand for writing and document placement on a stackable chair, the memo stand frame can be detachably attached by a simple operation. There is a chair memo stand for the purpose of providing a chair memo stand mounting device that does not interfere with other chair chairs, etc. A “mounting device” has been proposed.

  As shown in FIG. 10, the “chair memo stand mounting device” of Patent Document 1 is “of the seat plate of another chair that is located below the lower surface side of the seat plate 2 and the back surface side of the backrest plate 3. In a stackable chair that is stacked in close contact with the upper surface and the front surface of the backrest plate 3, a flat mounting bracket 22 having a narrower vertical width than the gap generated between the chair and the seat plate positioned below in the stacking state is mounted on the seat plate. The mounting bracket has a guide groove 23 opened to the side, and a support plate 24 provided at the lower end of the memo stand frame 6 is detachable in the guide groove. It is thought that the operation when stacking or nesting is very time-consuming.

  Patent Document 2 proposes a “stacking chair” for the purpose of “providing a stacking chair with a table that enables automatic laying and collecting by a chair automatic laying and collecting device”.

  As shown in FIG. 11, the “stacking chair” of this Patent Document 2 is provided such that “the arm 4 is provided on the side frame of the backrest 1 so as to be rotatable on the front and back of the backrest 1 via the rotation shaft 3. A third connecting block 23-shaped table 2 is attached to the arm 4 so that the table 2 can be lifted sideways, and supports the arm 4 rotated forward of the backrest 1 below the rotating shaft 3 of the side frame of the backrest 1. The table 2 is provided with a stopper member 5 that is positioned horizontally. This "stopper member 5" projects greatly to the side of the chair as shown in FIG. It is considered to be very disturbing when doing nesting or nesting.

  Patent Document 3 states that “a table can be stacked in a folded state at a low position, and a large number of chairs can be stably stored in a storage space whose height is limited. Has been proposed to provide an individual chair with a table that is simple and easy to operate.

  Although the “chair with a table” of Patent Document 3 has an advantage of stacking and nesting as shown in FIG. 13, as shown in FIG. At the upper part of one side, the table 17 is mounted so as to be movable at a use position A which is substantially horizontal in the front upper direction of the seat 8 and a first folding position seat plate 111 which is inclined outward and downward. Therefore, it is considered that the “table 17” cannot be sufficiently stabilized during use.

  In short, in this kind of individual chair with a desk, it is natural that stacking and nesting can be done, and the folding desk is firmly fixed during use, so that note taking on this desk is stable. There is a need to be able to do this and to make this desk easy to move for stacking and nesting.

  Therefore, the present inventors, of course, can stack and nesting, and the folding desk is firmly fixed when in use, so that the memo can be stably taken on the desk. As a result of various studies on how to make an individual chair with a desk that can be easily moved for stacking and nesting, the present invention has been completed. It was.

  That is, the object of the present invention is to easily stack individual chairs with small desks that can be stacked and nested, can be securely fixed when used, and can be moved easily during stacking or nesting. It is to be provided by a simple configuration.

In order to solve the above problems, first, the means taken by the invention according to claim 1 will be described with reference numerals used in the description of the best mode described below.
“Individual chair 10 with a desk, in which a desk 14 is rotatably connected to a frame 13 supporting a seat plate 11 and a backrest 12 via a connecting mechanism 20,
The connection mechanism 20 includes a first connection block 21 attached to the frame 13, a second connection block 22 rotatably connected to the first connection block 21 via a horizontal shaft 24, and the second connection block 22. And a third connecting block 23 that is rotatably connected to the lower surface of the desk 14 via the connecting shaft 25, and is provided on the third connecting block 23 side, and protrudes in the forward direction of the desk 14. And a stopper 27 protruding from the rear surface of the first connecting block 21 so that the locking protrusion 26 can be engaged.
When the desk 14 is rotated through the horizontal shaft 24 in front of the seat plate 11 and the front portion of the desk 14 is pushed down through the connecting shaft 25, the locking projection 26 is engaged with the stopper 27. Individual seat with a desk, characterized by being able to stop "
It is.

  That is, the individual chair with a desk 10 according to the present invention is an individual chair on which one user can sit as shown in FIGS. 1 to 3, and has a desk 14 that can be rotated forward of the seated user. It is a thing. And this small desk 14 can be made to incline as shown in FIG. 4, when making several of the said individual chairs 10 with a desk a stacking state, The plurality of the individual chairs 10 with a said desk In the nesting state, it can be inclined as shown in FIG.

  By the way, the connection of the desk 14 to the frame 13 of the individual chair 10 with a desk is made by the connection mechanism 20, and this connection mechanism 20 is attached to the frame 13 as shown in FIGS. A first connection block 21, a second connection block 22 rotatably connected to the first connection block 21 via a horizontal shaft 24, and a rotation to the second connection block 22 via a connection shaft 25. A third connecting block 23 which is connected to the lower surface of the desk 14 and is connected to the lower face of the desk 14, a locking projection 26 which is provided on the third connecting block 23 side and protrudes in the front direction of the desk 14, and A stopper 27 is provided on the rear surface of the first connecting block 21 so that the stop protrusion 26 can be engaged.

  Since the connecting mechanism 20 has the above-described components, the desk 14 can be rotated in the order shown in FIG. 8 or FIG. 9 when stacking or nesting is performed. In particular, the desk 14 to be used by the seated user can be firmly fixed.

  In other words, when the user wants to sit on the seat plate 11 of the individual chair 10 with a desk, first, the desk 14 is rotated so that it is not in front of the seat plate 11. In that case, the desk 14 is lifted as shown in (1) and (2) of FIG. 8 or FIG. At this time, if the desk 14 is in the state shown in FIG. 1, the front end face 14a of the desk 14 is lifted as shown in FIG. It is natural to release the engagement.

  Then, the user sitting on the seat plate 11 of the individual chair with a desk 10 puts the desk 14 that has been turned sideways in front of the seat plate 11 as shown in FIG. After the rotation, the front portion of the desk 14 is pushed down (downward) as indicated by the arrow 1 in FIG. 6B. At this time, the locking protrusion 26 provided on the third connection block 23 side and protruding in the front direction of the desk 14 protrudes from the rear surface of the first connection block 21 as shown in FIG. By engaging with the formed stopper 27, the desk 14 is prevented from turning further downward and laterally.

  In addition, in the individual chair 10 with a desk according to an embodiment to be described later, as shown in FIG. 6A, the mounting plate 23a of the third connection block 23 connected to the back surface of the desk 14 is the first. Since the upper end of the connecting block 21 is supported on a support portion 21a formed so that the upper surface is in a horizontal state, it is a small table when the front portion is pushed down after being rotated forward of the seat plate 11. 14 is combined with the locking of the locking projection 26 to the stopper 27, so that it is reliably performed.

  Therefore, the individual chair 10 with a desk according to the present invention can be stacked and nested, and the desk 14 can be firmly fixed when used, and the desk 14 can be easily moved during stacking or nesting. It is a thing.

As described above, in the present invention,
“Individual chair 10 with a desk, in which a desk 14 is rotatably connected to a frame 13 supporting a seat plate 11 and a backrest 12 via a connecting mechanism 20,
The connection mechanism 20 includes a first connection block 21 attached to the frame 13, a second connection block 22 rotatably connected to the first connection block 21 via a horizontal shaft 24, and the second connection block 22. And a third connecting block 23 that is rotatably connected to the lower surface of the desk 14 via the connecting shaft 25, and is provided on the third connecting block 23 side, and protrudes in the forward direction of the desk 14. And a stopper 27 protruding from the rear surface of the first connecting block 21 so that the locking protrusion 26 can be engaged.
When the desk 14 is rotated through the horizontal shaft 24 in front of the seat plate 11 and the front portion of the desk 14 is pushed down through the connecting shaft 25, the locking projection 26 is engaged with the stopper 27. I was able to stop it. ''
There is a feature in the structure, and by this, multiple stacking and nesting can be performed, and the desk 14 can be firmly fixed when in use. Thus, the individual seat 10 with a small desk that can be easily moved can be provided with a simple configuration.

It is the individual chair 10 with a desk concerning this invention, Comprising: It is a front view when the desk 14 is fixed to a use condition. It is a top view of the individual chair 10 with the same desk. It is a side view of the individual chair 10 with the same desk. It is a front view when stacking two or more of the individual chairs 10 with the same desk. It is a front view when multiple of the individual chairs 10 with the same desk are nested. This shows a case where the desk 14 of the individual chair 10 with the desk is connected to the frame 13 via the connecting mechanism 20 and the front end surface 14a of the desk 14 is on the left side in the figure. Is a partially enlarged side view showing a state in which the desk 14 is fixed by the locking projection 26 and the stopper 27, and (b) is a partially enlarged view showing a state in which the locking by the locking projection 26 and the stopper 27 of the desk 14 is released. It is a side view. The relationship between the desk 14 and the connecting mechanism 20 of the individual chair 10 with the desk is shown. (A) is a bottom view of the desk 14, (b) is a rear view of the desk 14, and (c) is a small figure. It is a right view of the desk 14. The order of making the desk 14 of the individual chair 10 with the desk suitable for stacking is shown by (1) to (5 · S), where (1) is a right side view of the desk 14 and (2) Is the bottom view when the desk 14 is raised in the direction of the arrow in (1), (3 · S) is the bottom view when the desk 14 is tilted in the direction of the arrow in (2), (4 · S) (3 · S) is a side view, and (5 · S) is a plan view when the desk 14 is raised in the direction of the arrow in (4 · S). The order of making the desk 14 of the individual chair 10 with the desk suitable for nesting is shown by (1) to (5 · N), (1) is a right side view of the desk 14, (2) Is the bottom view when the desk 14 is raised in the direction of the arrow in (1), (3 · N) is the bottom view when the desk 14 is tilted in the direction of the arrow in (2), (4 · N) (3 · N) is a plan view, and (5 · N) is a plan view when the desk 14 is raised in the direction of the arrow in (4 · N). It is a side view of the chair which shows the technique described in patent document 1. FIG. It is a perspective view of a desk which shows the technique indicated in patent documents 2. It is a front view of the chair which shows the technique described in patent document 3. FIG. The technique described in patent document 3 is shown, (a) is a side view of the stacking chair, (b) is a side view of the nesting chair.

  The present invention configured as described above will be described with respect to the individual chair 10 with a desk which is the embodiment shown in the drawings. In FIG. 1 to FIG. A chair 10 is shown. The backrest 12 and the seat plate 11 constituting the individual chair with a desk 10 are attached to a frame 13, and the frame 13 is configured as follows.

  As shown in FIG. 3, the frame 13 is provided with two sets of members fixed by the connecting shaft 13c in a state where two linear auxiliary frames 13b are crossed to support the seat plate 11 and the backrest 12. The caster 13a is attached to the lower end of each auxiliary frame 13b. A desk 14 is attached to the upper end of one auxiliary frame 13b whose upper end is inclined toward the front via a coupling mechanism 20, and an armrest (not shown) is attached to the upper end of the remaining one auxiliary frame 13b. Is attached.

  As shown in FIG. 6, the connection mechanism 20 includes a first connection block 21 attached to the frame 13, and a horizontal shaft 24 that extends to the first connection block 21 in the left-right direction of the individual chair 10 with a desk. And a second connecting block 22 that is rotatably connected to the second connecting block 22 via a connecting shaft 25 that extends in the front-rear direction of the individual chair 10 with a small desk. A third connecting block 23 attached to the lower surface of the desk 14, a locking projection 26 provided on the third connecting block 23 side and protruding forward of the desk 14, and the locking projection 26 engage with each other. As shown, a stopper 27 is formed on the rear surface of the first connecting block 21 so as to project.

  As shown in FIGS. 6 and 7, the first connecting block 21 is non-rotatably attached to the upper end of one auxiliary frame 13b. The mounting plate 23a on the side of the three connecting blocks 23 is used as a support portion 21a for horizontally supporting. Further, a stopper 27 is formed at the rear portion of the first connection block 21 so as to protrude rearward. The second connection block 22 is connected to the first connection block 21 via the horizontal shaft 24. As a result, the first connection block 21 is completely fixed to the auxiliary frame 13b. However, the second connection block 22 can be rotated in the vertical direction about the horizontal shaft 24 with respect to the first connection block 21.

  The second connection block 22 is a so-called intermediate for connecting the first connection block 21 and the third connection block 23 described below, and the third connection block 23 is rotatable with respect to the second connection block 22. The connection is made by a connection shaft 25 orthogonal to the horizontal shaft 24 described above. A friction member (not shown) that allows rotation while applying a predetermined frictional force is interposed between the second connection block 22 and the first connection block 21 and the third connection block 23. It is.

  The third connection block 23 that is rotatably connected to the second connection block 22 by the connection shaft 25 is fixedly attached to the lower surface of the desk 14 as shown in FIG. That is, as shown in FIG. 7A, the third connecting block 23 includes a mounting plate 23a having a sufficient width, and the locking projection 26 is provided on the mounting plate 23a. It is formed integrally.

  As shown in FIG. 6, the locking protrusion 26 protrudes forward when the desk 14 is rotated and fixed in the use state. That is why (a) in FIG. ), The stopper 27 on the first connecting block 21 side is engaged. The engagement of the locking protrusion 26 with the stopper 27 can be released by rotating slightly upward about the horizontal axis 24 in the direction of the arrow 1 shown in FIG.

  When the engagement of the locking projection 26 with the stopper 27 is released, the desk 14 rotates in the direction of the arrow 2 shown in FIG. 6B, that is, to the left (or right) about the connecting shaft 25. Thus, the seat plate 11 of the desk 14 can be turned from the front side to the side.

  Since the engaging protrusion 26 can be engaged with and released from the stopper 27 as described above, clothes and baggage are caught by the connecting mechanism 20 and the human body and clothes are caught. This is because most of the connection mechanism 20 is hidden under the desk 14 and covered with the desk 14, and the lower surface of the desk 14 is the third connection block as shown in FIG. This is because only a little is covered with the 23 mounting plates 23a. Moreover, since the support part 21a of the 1st connection block 21 is formed in the position retreated largely from the front-end surface 14a of the desk 14, a finger | toe is used with Kamata of this support part 21a and the mounting plate 23a of the desk 14. Less pinching.

DESCRIPTION OF SYMBOLS 10 Individual chair with a desk 11 Seat plate 12 Backrest 13 Frame 13a Caster 13b Auxiliary frame 13c Connection shaft 14 Desk 14a Front end surface 20 Connection mechanism 21 First connection block 21a Bearing 22 Second connection block 23 Third connection block 23a Installation Plate 24 Horizontal shaft 25 Connecting shaft 26 Locking projection 27 Stopper

Claims (1)

An individual chair with a desk, in which a desk is rotatably connected to a frame supporting a seat plate and a backrest via a connection mechanism,
The connection mechanism includes a first connection block attached to the frame, a second connection block rotatably connected to the first connection block via a horizontal shaft, and a connection shaft connected to the second connection block. A third connection block that is pivotably connected to be attached to the lower surface of the desk, a locking projection that is provided on the side of the third connection block and protrudes forward of the desk, and As provided with a stopper that protrudes on the rear surface of the first connecting block so that the stop protrusion can be engaged,
When the desk is rotated through the horizontal shaft in front of the seat plate and the front portion of the desk is pushed down through the connecting shaft, the locking projection engages with the stopper. Individual seat with a desk, characterized by being able to stop.

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