JP2016214280A - Chair with note-taking table - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair with a note-taking table to be housed on the side of a seat part capable of controlling a turn stop position of the note-taking table with a simple mechanism.SOLUTION: A turn unit 8 is mounted on a note-taking table unit 7. The turn unit 8 has a fixation plate 17 to be fixed on the note-taking table 9 with fixing screws and a projection 26 is provided on each fixing screw. A connection plate 19 is rotatably connected to the fixation plate and the connection plate is connected to a reception part plate 15 with connecting screws. Each connecting screw is provided with a stopper part 34 with which the projection 26 of the fixing screw is brought into contact when turning the note-taking table.SELECTED DRAWING: Figure 16

Description

  The present invention relates to a chair with a memo stand that can be used as a table by moving horizontally to the front surface of a seated person and can be stored on the side of a seat when not in use.

  A chair with a memo stand is known that is used in a horizontal state and has a memo stand attached to the side of the seat so that it can be stored when not in use (see, for example, Patent Document 1). This type of chair has a support frame for supporting the memo stand on the side of the seat, and a memo stand is attached to the horizontal part formed at the top of the support frame so that it can be rotated. And can be held in a horizontal state. And when not in use, the memo stand is rotated outward with the horizontal part of the support frame as an axis and held in a standing state on the side of the seat, or the tip is rotated downward from the standing state and suspended. Hold the note stand. For example, in the memo stand described in Patent Document 1, a boss is rotatably attached to the horizontal portion of the support frame, and a metal fitting attached to the back surface of the memo stand is connected to the boss with a pin so as to be rotatable. A U-shaped slide fitting is fixed to the back surface, and a memo stand support portion bent inward while being horizontal is formed on the support frame, and the slide fitting is movably inserted into the memo stand support portion. With the above configuration, the memo stand is held horizontally by the memo stand support portion in use, and when not in use, the slide bracket is continuously provided on the memo stand support portion when the memo stand is turned horizontally outward. The memo stand pivots downward along the outer surface of the support frame around the pin, and the memo stand is located on the seat portion. Stored on the side.

  When the memo stand described in Patent Document 1 is swung outward in a horizontal state, the slide fitting hits the arc-shaped bent portion continuous to the memo stand supporting portion. Since it continues to the front vertical scissors while curving, when the memo stand is pivoted vigorously, the slide fitting easily moves to the front vertical scissors through the bent portion. As a result, the front part of the memo stand may move downward along the vertical vertical ridges, and the memo stand may easily move to the side of the seat. Documents and writing instruments placed on the memo stand may be dropped. Furthermore, if the memo stand is flipped up outside the support frame, it will be pivoted downward and suspended as described above, so it cannot be held upright.

  A chair that restricts the movement of the memo stand within a predetermined range has also been proposed (see, for example, Patent Document 2). However, the memo stand described in Patent Document 2 has a special construction of a member called a rotation control unit for controlling the movement range, and this rotation control unit must be fixed to the back surface of the slider member body. Becomes complicated and cannot be obtained economically.

Japanese Utility Model Publication No. 55-1477 (claim of utility model, drawing) JP 2013-102790 A (paragraph 0042, FIG. 9, FIG. 11, FIG. 14 to FIG. 21)

  An object of the present invention is to provide a chair with a memo stand having a simple configuration that can stop the rotation within a predetermined range when the memo stand is rotated and does not require a special member as a mechanism therefor. It is to be.

  According to the present invention, the memo stand unit that is attached to the side of the seat portion of the chair and the rotating unit that is fixed to the memo stand are provided, and the front end portion of the memo stand unit is horizontal so as to hold the memo stand in a horizontal state. The rotating unit has a fixing plate attached to the memo stand with fixing screws and a connecting plate rotatably connected to the fixing plate. The rotating unit is connected to the axis of the horizontal unit. The receiving plate and the connecting plate of the rotating unit are connected by a connecting screw with the horizontal portion interposed therebetween so that the connecting screw and the fixing screw come into contact with each other when the memo stand is rotated by a predetermined angle. A chair with a memo stand in which a stopper portion is provided at the tip of the boss and a protrusion is provided on the fixing screw is provided to solve the above-described problem.

  Further, according to the present invention, the memo stand unit has an upright portion extending below the horizontal portion and an insertion portion extending in a seat portion direction from a lower end of the upright portion, and the insertion portion is provided on a lower surface of the seat portion. There is provided the above chair with a memo stand provided with a receiving pipe for detachably inserting.

  The present invention is configured as described above, and includes a memo stand unit that is attached to the side of the seat portion of the chair and a rotating unit that is fixed to the memo stand, and the memo stand holds the memo stand in a horizontal state. The rotating unit has a fixing plate attached to a memo stand with a fixing screw and a connecting plate rotatably connected to the fixing plate, and the rotating unit is connected to the horizontal unit. The receiving plate and the connecting plate of the rotating unit are connected with a connecting screw across the horizontal portion so as to rotate around the axis of the portion, and the connecting screw and the fixing screw are contacted when the note table is rotated by a predetermined angle. Since the stopper is provided at the tip of the connecting screw so that it comes into contact with the protrusion, the fixing screw is provided with a protrusion. Rotation, note stand rotation is stopped at a position where the projection strikes the fixing screw the stopper portion of the connecting screw, do not rotate more than the stop position, there is no risk of dropping the article on memo boards. In addition, when the memo stand in a horizontal state is flipped upward, the memo stand rotates around the axis of the horizontal part of the memo stand unit, and the upper end of the memo stand rotates slightly forward so that the connecting screw The rotation of the memo stand is restricted at the position where the stopper portion hits the stopper portion, and can be maintained in the standing state. Then, when the upper end of the standing memo stand is rotated backward, the memo stand can be stored in the side of the seat, easy to operate, and provided with a rotation limiting member and other special members. In addition, since only the screws required for assembly are used, the configuration can be obtained easily and economically.

  Further, as the memo stand unit, an upright portion extending below the horizontal portion and an insertion portion extending from the lower end of the upright portion toward the seat portion are provided, and the insertion portion is detachably inserted and supported on the lower surface of the seat portion. If a receiving pipe is provided, the memo stand unit can be attached to the seat when the memo stand is needed, and the memo stand unit can be removed from the seat when not in use. Can be used conveniently.

The perspective view of the use condition which shows one Example of this invention. The perspective view of the state which raised the memo stand. The perspective view of the state which stored the memo stand in the side of the seat part. The perspective view of the state which separated the memo stand unit from the chair main body. The side view of the state which stored the memo stand. Explanatory drawing of the state where the memo stand is raised. Sectional drawing of the rotation unit of the part which has a screw hole in an outward position. Sectional drawing of the rotation unit of the part which has a screw hole in an inward position. Explanatory drawing of the state which protrusion contact | abutted the stopper part. The front view seen from the receiving part plate side. A fixed plate is shown, (A) is a top view, (B) is a sectional view. A connection plate is shown, (A) is a top view, (B) is a sectional view. The top view of a receiving part plate. Explanatory drawing of an assembly state. Explanatory drawing of the state which the protrusion of a fixing screw has not contacted the stopper part of a connection screw. Explanatory drawing of the state in which the protrusion of the fixing screw hits the stopper portion of the connecting screw.

  1 to 5 show an embodiment of the present invention. A chair body 1 includes a front leg 2, a seat frame 4 that is continuously formed on the upper part of the front leg 2, and supports a seat portion 3, and a rear end of the seat frame 4. The rear leg 5 is connected to the rear leg 5 and has a back portion 6 formed at the upper end of the rear leg 5. However, the present invention can be applied to various chairs in addition to the chairs shown in the embodiments. A memo stand unit 7 is provided on the side of the seat portion 3, and a memo stand 9 is provided on the memo stand unit 7 via a rotation unit 8.

  The memo stand unit 7 has an upper horizontal portion 10 having a tip portion 10a curved backward in a horizontal state so that the memo stand 9 can be held in a horizontal state, and an upright portion 11 is provided below the horizontal portion 10. Is formed. In the figure, the front standing part 11a located in front of the seat part 3 stands substantially vertically, and the rear standing part 11b located rearward stands up inclined toward the rear leg 5 direction. And the insertion part 12 extended in the seat part 3 direction substantially horizontally is formed in the lower end of the said standing part 11. As shown in FIG. A receiving pipe 13 into which the insertion portion 12 can be inserted is provided on the seat frame 4 below the seat portion 3. The memo stand unit 7 can be detachably attached to the seat portion 13 by inserting the insertion portion 12 into the receiving pipe 13, and the memo stand unit 7 is removed from the chair body 1 by pulling out the insertion portion 10 from the receiving pipe 13. Can do. The insertion portion 12 is provided with a positioning member 14 for restricting the insertion position of the insertion portion, and in the embodiment shown in the figure, it is formed in a ring shape, but is formed in an appropriate shape. be able to.

  The rotating unit 8 is attached to the memo stand unit 7 by a receiving plate 15 with the horizontal portion 10 interposed therebetween. Referring to FIGS. 7 to 10, the rotating unit 8 can be rotated by fixing a fixing plate 17 attached to the memo stand 9 with a fixing screw 16 and a center shaft 18 such as a pin or a rivet to the fixing plate 17. And a connecting plate 19 connected inseparably. The fixing plate 17 is fixed by screwing a fixing screw 16 into an embedded nut 20 provided on the memo stand 9. The fixing plate 17 protrudes from the peripheral portion as shown in FIG. And a peripheral plate portion 23 provided with a mounting hole 24 through which the fixing screw 16 is inserted. In the figure, four mounting holes 24 are provided, and the hole edges of the three mounting holes 24 form a countersink 25 so that the head of the fixing screw constituted by a countersunk screw does not protrude from the plane of the fixing plate. It is. The hole edge of the remaining one mounting hole is not formed with a countersink so that the head of a fixing screw having a head such as a hexagon socket head screw protrudes from the plane of the fixing plate 17 to become a projection 26.

  The connection plate 19 is formed in the same size as the fixed plate 17, and has a central plate portion 28 having a central portion recessed from the peripheral portion and having a shaft hole 27 through which the central shaft 18 is inserted. Includes a peripheral plate portion 30 having a through hole 29 so that a screw or a tool can be passed when the fixing screw 16 is screwed into the memo stand 9. The fixed plate 17 and the connecting plate 19 are connected in a rotatable and non-separable manner by inserting the central shaft 18 through the shaft holes 21 and 27 with the central plate portions 22 and 28 in contact with each other. With this configuration, a rotation space 31 is formed between the peripheral plate portions 23 and 30 in which the protrusions 26 provided on the fixing screw 16 protrude.

  The connection plate 19 is formed with a screw hole 33 for screwing a connection screw 32 for connection to the receiving plate 15. This screw hole can be provided in an appropriate number, and in the embodiment shown in the figure, four screw holes are provided. When one end of the connecting screw 32 is rotated by a predetermined angle, the protrusion 26 of the fixing screw 16 hits when the memo stand 9 is rotated by a predetermined angle so as to stop the memo stand from rotating. A stopper portion 34 is formed. The connecting screw 32 that does not have the stopper portion is provided at a position that does not interfere with the protrusion 26 of the fixing screw 16 even if the tip of the connecting screw 32 protrudes into the rotating space 31. In the embodiment shown in the figure, the positions of the screw holes 33 are provided at a large pitch P1 radially outward from the center of rotation so that the screw holes 33 are positioned on the rotation locus of the projections 26 of the fixing screw when the memo stand 9 is rotated. A length having an outer position 33a and an inner position 33b provided at a small pitch P2 radially inward from the center of rotation so as not to contact the rotation locus, and having a stopper portion 34 at one of the outer positions 33a. A long connecting screw 32 is screwed, and a connecting screw having a length sufficient to fix the receiving plate 15 and the connecting plate 19 is screwed into the other screw holes.

  The receiving portion plate 15 has a receiving portion 35 that is curved in an arc shape so as to surround the periphery of the horizontal portion 10 of the memo stand unit 7, and mounting portions 36 that extend on both sides of the receiving portion 35. A control groove 37 extending in the circumferential direction of the horizontal portion 10 is formed, and a stopper screw 38 is screwed into the screw hole 40 (see FIG. 14) of the horizontal portion 10 through the control groove 37. The control groove 37 of the receiving part plate 15 holds the memo stand 9 in a fixed position, and when the pedestal 9 is raised from the horizontal position to the side of the seat 3, the stopper screw 38 hits the end of the control groove, and the memo stand 9 is raised. It is provided so that it can be held in position. The mounting portion 36 is provided with a mounting hole 39 at a position corresponding to the screw hole 33 provided in the connecting plate 19 of the rotating unit 8.

  The rotating unit 8 configured as described above can be easily assembled by attaching the back surface of the memo stand 9 by the fixing screw 16 and attaching the memo stand 9 to the horizontal portion 10 of the memo stand unit 7 by the receiving portion plate 15. (See FIG. 14). Then, if the memo stand 9 is rotated so as to come to the front surface of the seat portion 3 and the memo stand 9 is placed on the tip portion 10a of the horizontal portion 10 of the memo stand unit 7, as shown in FIG. It is maintained in a horizontal state and can be used.

  When the occupant moves the memo stand to the front side when standing up from the chair, the protrusion 26 of the fixing screw 16 fixed to the memo stand 9 rotates and the stopper portion 34 of the connecting screw 32 as shown in FIG. The memo stand stops at that position (see FIG. 16) and stops at that position, and there is no risk of further rotation, and the seated person can stand up from the seat with confidence. Further, when the memo stand is rotated around the horizontal portion, as shown in FIG. 2, the memo stand can be flipped up in an upright state. When the tip of the memo stand is rotated rearward from the standing state, the memo stand 9 is housed in a state of hanging down to the side of the seat portion 3 as shown in FIG.

  Further, when the memo stand is not used, the memo stand unit 7 can be detached from the chair body 1 by removing the insertion portion 12 of the memo stand unit 7 from the receiving pipe 13 as shown in FIG. Can be stored and organized easily.

DESCRIPTION OF SYMBOLS 1 Chair main body 2 Front leg 3 Seat part 4 Seat frame 5 Rear leg 6 Back part 7 Memo stand unit 8 Rotation unit 9 Memo stand 10 Horizontal part 12 Insertion part 13 Receiving pipe 15 Receiving part plate 16 Fixing screw 17 Fixing plate 18 Central axis 19 Connecting plate 26 Projection 31 Rotating space 32 Connecting screw 34 Stopper

Claims (6)

  It has a memo stand unit attached to the side of the seat of the chair and a rotating unit fixed to the memo stand, and the memo stand unit has a horizontal portion whose front end is curved horizontally so as to hold the memo stand in a horizontal state. The rotating unit has a fixing plate attached to the memo stand with a fixing screw and a connecting plate rotatably connected to the fixing plate, and the rotating unit rotates about the axis of the horizontal portion. A receiving plate and the connecting plate of the rotating unit are connected with a connecting screw across a horizontal portion, and a stopper is provided at the tip of the connecting screw so that the connecting screw and the fixing screw come into contact when the memo stand is rotated by a predetermined angle. A chair with a memo stand provided with a protrusion on the fixing screw.   The chair with a memo stand according to claim 1, wherein the protrusion of the fixing screw is a head of the fixing screw, and a stopper portion of the connecting screw is an extension of the connecting screw.   The memo stand unit has an upright portion extending downward from the horizontal portion and an insertion portion extending from the lower end of the upright portion toward the seat portion, and the receptacle portion is detachably inserted and supported on the lower surface of the seat portion. The chair with a memo stand according to claim 1, wherein a pipe is provided.   The chair with a memo stand according to claim 3, wherein a positioning member that abuts on the receiving pipe is provided in the insertion portion.   The fixed plate of the rotating unit has a central plate portion that protrudes from the peripheral plate portion, the connecting plate has a central plate that is recessed from the peripheral plate portion, and the central plate portion of the fixed plate and the connecting plate is centered on the central axis. The chair with a memo stand according to claim 1, wherein a rotating space is formed between peripheral plate portions around the central plate portion when connected in a rotatable and inseparable manner.   The connecting plate is formed with a screw hole for attaching to the receiving plate, and the screw hole of the connecting screw having the stopper portion is provided radially outside the rotation center of the connecting plate, and does not have the stopper portion. The chair with a memo stand according to claim 5, wherein the screw hole is provided radially inward of the screw hole.

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