JP4302669B2 - Retractable memo stand, chair with backrest, and moving bleachers - Google Patents

Description

  The present invention is a retractable memo stand capable of storing the memo stand main body from above with its use surface substantially upright, a chair with a backrest in which the retractable memo stand is attached behind the backrest, and the The present invention relates to a traveling bleacher with a chair.

  Conventionally, in a chair having a backrest part for a person to lean back, a memo stand for a person in the back seat of the chair to place an object such as a notebook or pen can be stored behind the backrest part. There is something attached to.

  And as a storage-type memo stand attached to such a chair with a backrest, as shown in FIG. 8, the plate-like memo stand main body 100 has a storage portion from above with its use surface 100a substantially upright. What is stored in 102 is known (for example, refer to Patent Document 1).

  That is, as shown in FIGS. 8 and 9, the retractable memo stand is attached to the back of the plate-like memo stand main body 100 and the backrest portion 202 of the chair 200, and the memo stand main body 100 is attached to the use surface thereof. A storage portion 102 that can be stored from above in a state in which 100a is substantially upright, a slide rail 104 that is disposed along the vertical direction inside the storage portion 102, and is slidably supported by the slide rail 104. The slide fitting 106 is provided.

  Further, the memo stand main body 100 is provided with a memo stand receiving metal fitting 108 formed on one end of the back surface of the use surface 100a so as to extend outward along the plate thickness direction. The memo stand receiving metal 108 and the slide metal 106 are connected via a substantially cylindrical pin S. When the memo base main body 100 is pulled out from the storage portion 102, the pin S (in detail, The use surface 100a of the memo stand main body 100 can be rotated from a substantially upright vertical position Y to a horizontal position (use position) X that is turned up in a substantially horizontal direction around the center axis of the pin S). ing.

  In particular, the retractable memo stand includes a torsion coil spring 110 having one end 110 a attached to the slide fitting 106 and the other end 110 b attached to the memo stand receiving fitting 108.

  More specifically, one end 110a of the torsion coil spring 110 is attached to the slide fitting 106 so as to be disposed closer to the chair 200 than the pin S. Further, the other end 110b is located closer to the chair 200 than the one end 110a when the memo stand main body 100 is in the use position X due to the rotational movement of the memo stand main body 100, and when the memo stand main body 100 is in the vertical position Y. It is attached to the memo stand bracket 108 so as to be on the side opposite to the chair 200 side from the one end 110a. The torsion coil spring 110 gradually contracts as the memo stand main body 100 rotates from the use position X to the inclined position P inclined by a predetermined angle from the use position X (that is, the distance between both ends 110a and 110b gradually increases). As the memo stand main body 100 rotates from the tilt position P to the vertical position Y, it gradually extends. Further, the torsion coil spring 110 rotates the memo stand main body 100 about the pin S in the clockwise direction in FIG. 9 when the memo stand main body 100 is between the use position X and the inclined position P. When the memo stand main body 100 is between the inclined position P and the vertical position Y, the memo stand main body 100 is urged in the direction to rotate counterclockwise as shown in FIG. To do.

  In the storage type memo stand described above, when the user uses the memo stand main body 100, the memo stand main body 100 stored in the storage portion 102 is pulled out from the storage portion 102 and turned clockwise in FIG. Rotate (front).

  Then, when the memo stand main body 100 is rotated to the use position X, the tip of the use surface 100a comes into contact with the upper portion of the storage unit 102. At this time, the torsion coil spring 110 urges the memo stand main body 100 in the clockwise direction shown in FIG.

Thereby, the user can use the memo stand main body 100.
On the other hand, when the memo stand main body 100 in use is stored in the storage portion 102, the torsion coil spring 110 urges the memo base main body 100 in the counterclockwise direction in FIG. The memo stand main body 100 is lifted. Then, a counterclockwise rotational force as shown in FIG. 9 is applied to the memo base body 100 by the torsion coil spring 110 around the pin S, and the memo base body 100 automatically rotates to the vertical position Y. Thereafter, the memo stand main body 100 slides downward as the slide fitting 106 slides on the slide rail 104, and is stored in the storage portion 102.
Japanese Patent No. 3459219

  By the way, in the conventional retractable memo stand, in order to allow a person to leave the seat smoothly in an emergency, manual operation by the user when storing the memo stand main body 100 in the storage portion 102 is preferably performed. There is a demand to reduce it.

  However, in the conventional retractable memo stand, the memo stand main body 100 has to be lifted up to an inclined position P where the torsion coil spring 110 urges the memo stand main body 100 in the counterclockwise direction shown in FIG.

  Therefore, in order to reduce the manual work by the user, the torsion coil spring 110 causes the memo stand main body 100 to rotate counterclockwise as shown in FIG. 9 where the angle formed between the inclined position P and the use position X is as small as possible. For example, one end 110a of the torsion coil spring 110 may be disposed above the attachment position in FIG. 9 so as to be biased in the rotating direction.

  However, merely placing the one end 110a of the torsion coil spring 110 above the attachment position in FIG. 9 can reduce manual work by the user, but the biasing force that the torsion coil spring 110 applies to the memo stand main body 100. Since the memo stand main body 100 becomes weaker as it stands up, the memo stand main body 100 may stop halfway without rotating to the vertical position Y when rotating automatically.

  Further, in order to solve this problem, the elastic force of the torsion coil spring 110 may be increased. In this case, the memo stand main body 100 rotates vigorously during the storing operation. When it reaches Y, the impact sound generated by colliding with other members is increased, which may cause discomfort to the user.

The present invention has been made in order to solve such problems, and at the time of storing work of the memo stand main body by the user, the memo stand main body is automatically rotated without stopping in the middle, and the Storage memo stand that can prevent the memo stand main body from rotating vigorously , a chair to which the storage memo stand is attached behind the backrest, and a mobile type equipped with the chair The purpose is to provide bleachers.

  The invention according to claim 1, which has been made to achieve the above object, is attached to a plate-like memo stand main body and a base erected on the floor surface, and the use surface of the memo stand main body is substantially upright. Storage unit that can be stored from above in the state, a slide rail arranged along the vertical direction inside the storage unit, and slidably supported by the slide rail, and the memo stand body from the storage unit A support member that supports one end side of the memo stand main body so that, when pulled out, the use surface of the memo stand main body can be rotated from a substantially upright vertical state to a horizontal state in which the memo base main body is turned upside down in a substantially horizontal direction; The memo stand main body is supported from the one end side of the memo stand main body supported by the support member, and protrudes outward along the plate surface direction of the memo base main body, and the tip thereof is used from the back side to the use surface side. Curved member formed to curve toward Each end is attached to a connecting member that is connected to the lower side of the supporting member and is slidably supported with respect to the slide rail together with the supporting member, and the bending member and the connecting member. An urging member for urging in a rotating direction from a horizontal state to a vertical state, and an end of the urging member on the bending member side is slidable between a front end and a rear end of the bending member. It is characterized by being attached to.

  In such a storage-type memo stand according to claim 1, when the memo stand main body is pulled out from the storage portion and its use surface is in a horizontal state, the predetermined position supported by the support member is used as a center. When the usage surface rotates in a direction rotating from the horizontal state to the vertical state, the end of the biasing member on the bending member side moves from the rear end of the bending member toward the tip in accordance with the rotation of the memo stand main body. It can suppress that the urging | biasing force which a member gives to a memo stand main body will become small with the rotation.

For this reason, according to the retractable memo stand according to claim 1, when the memo stand main body is stored by the user, the memo stand main body is automatically rotated without stopping in the middle, It is possible to prevent the memo stand main body from rotating vigorously.
Incidentally, in the retractable memo stand according to claim 1 , the memo stand main body is smoothly lifted with a substantially uniform force by appropriately setting the shape of the bending member and the urging force that the urging member applies to the memo base main body ( using surface notes rest body from a horizontal state rotates in the direction of rotation to the vertical state) that can, when the housing TIP table body housing portion, a note rest body from the desired position, the working surfaces Can be automatically rotated in the direction of rotating from a horizontal state to a vertical state.

The following, retractable notes stand according to claim 2, in retractable notes stand according to claim 1, above the storage portion, the insertion opening for inserting a note rest body therein is formed, A discharge port is formed in the bottom portion of the storage unit for dropping a member that has entered the storage unit from the insertion port onto the floor surface.

  According to such a retractable memo stand according to claim 2, when the memo stand main body is stored in the storage portion, for example, a member such as a pen or paper placed on the memo stand main body enters the storage portion. Even if it has occurred, the member comes out from the discharge port without remaining in the storage portion, so that it is possible to prevent the member that has entered the storage portion from being caught.

  By the way, in the retractable memo stand according to claim 2, since the discharge port may be an opening that allows the member that has entered the storage portion to be discharged, its size is smaller than the insertion port. May be.

  However, if the discharge port is made smaller than the insertion port in this way, there is a step on the inner wall of the storage part, and it is considered that the member that has entered the storage part will be caught in the storage part. In this case, the retractable memo stand according to claim 2 is preferably configured as described in claim 3.

  That is, the retractable memo stand according to claim 3 is the retractable memo stand according to claim 2, wherein the inner wall of the storage portion is the plate of the memo stand main body when the memo stand main body is stored in the storage portion. The width of the storage portion in the thickness direction is formed so that the discharge port is narrower than the insertion port, and is further configured to be inclined toward the discharge port.

  According to such a storage-type memo stand according to claim 3, since the inner wall of the storage unit is inclined toward the discharge port, a member that has entered the storage unit is caught in the storage unit. Can be prevented.

  Next, the retractable memo stand according to claim 4 is the retractable memo stand according to any one of claims 1 to 3, wherein the retractable memo stand is formed in a long shape and can be wound up. And a winding device comprising a winding member for winding the winding member from one end side thereof, and a winding biasing member that biases the winding member in the winding direction. One of the end and the winding member is attached to the support member or the connecting member, and the other end of the long member and the other of the winding member are attached above the storage portion.

  That is, in the retractable memo stand according to claim 4, when the memo stand main body falls within the storage portion with the take-up device, the take-up device attaches the memo stand main body when the long member is fully extended. Since it is made to stop, the distance which a memo stand main body falls in the storage part can be restrict | limited.

  For this reason, according to the retractable memo stand of claim 4, by appropriately setting the length of the long member, when the memo stand main body is stored in the storage portion, it collides with the bottom of the storage portion. Can be prevented.

  By the way, in the retractable memo stand according to claim 4, when the memo stand main body is stored in the storage portion, the dropping speed of the memo stand main body can be suppressed by the winding biasing member. Is determined by the weight of the memo stand main body and the urging force of the take-up biasing member. Therefore, when the weight of the memo stand main body is large or the biasing force of the take-up biasing member is small, the take-up bias In some cases, the dropping speed of the memo stand main body cannot be sufficiently suppressed only by the members.

  And when the urging member for winding cannot sufficiently suppress the dropping speed of the memo stand main body, when the memo stand main body is stored in the storage portion (that is, when the long member is fully extended). In some cases, the impact sound generated by the camera becomes loud, which may cause discomfort to the user.

  Therefore, as described in claim 5, the retractable memo stand according to claim 4 is attached to the winding member of the winding device, and the winding member is in a direction opposite to the direction in which the long member is wound up. It is good to have the rotation suppression member which suppresses rotation of the winding member at the time of rotating.

  According to this, when the memo stand main body is stored in the storage portion, the dropping speed of the memo base main body can be sufficiently suppressed, so that the impact sound generated when the memo base main body is stored in the storage portion is reduced. And the burden on the winding device can be reduced.

Moreover, when the stowable memo stand according to any one of claims 1 to 5 includes a rotation roller at an engaging portion between the support member, the connecting member, and the slide rail, as described in claim 6. good.
If it does in this way, it can perform smoothly that a memo stand main body is inserted in a storage part, or a memo stand main body is pulled out from a storage part.

  Next, the invention according to claim 7 is a seat part for a seated person to sit, a chair body that is installed on the floor and supports the seat part substantially horizontally, and is supported by the chair body, A chair with a backrest provided with a backrest for a seated person sitting on the back, wherein the stowable memo stand according to any one of claims 1 to 6, It is characterized by being attached to the back of the bend.

  According to the chair with the backrest according to the seventh aspect, since the retractable memo stand of the present invention is attached to the backrest portion, another chair is provided behind the chair with the backrest. For example, a person sitting in the chair uses the storage-type memo stand of the present invention (that is, a storage-type memo stand attached to the chair with the backrest) that will be placed in front of the seated person. Can do.

  Moreover, since the retractable memo stand can obtain the same effects as those described in the first to sixth aspects, the chair disposed behind the chair with the backrest according to the seventh aspect. A person sitting on the chair can smoothly store the memo stand main body, and the chair with a backrest according to claim 7 is easy to use.

  Next, the invention according to claim 8 is composed of a plurality of floors with different heights equipped with chairs, and when stored, the other floors are sequentially stacked below the uppermost floor. In the telescopic deployment type mobile bleacher seat which is stowed and in use, the lowermost floor pedestal is pulled out so that each floor pedestal is developed in order to form a staircase-shaped bleacher seat. The chair with a backrest is characterized by being arranged so that the front of the chair faces the direction in which the floor is pulled out.

  According to such a traveling bleacher of the eighth aspect, since the retractable memo stand of the present invention is attached to the backrest portion of each chair, when the movable bleacher seat is used, A person sitting on a chair provided can use a stowable memo stand of a chair placed in front of the person on the floor placed below the floor.

  In addition, since the retractable memo stand can achieve the same effects as those described in the first to sixth aspects, a person sitting on the chair of the moving seat according to claim 8 can Can be stored smoothly, and the convenience of the moving bleachers is improved.

  Further, according to the eighth aspect of the present invention, the chair with the backrest is configured such that the backrest portion can be folded with respect to the seat portion, and the floor base and the upper seat adjacent thereto are provided. It is preferable that the vertical distance from the lower floor is opened by the height of the chair with the backrest in a state where the backrest portion is folded with respect to the seat portion.

If it does in this way, the space of the up-down direction in the front and back floor bases can be made small.
Further, according to claim 8, the mobile auditorium according to claim 8 is configured such that the chair with a backrest is configured such that the seat portion can be folded with respect to the backrest portion, and the chair body is a floor base. The vertical distance between the floor base and the upper and lower floor bases adjacent to the floor base is such that the seat is folded with respect to the backrest, and the chair body is with respect to the floor base. It should be open as much as the height of the chair with the backrest in the folded state.

  In this way, the space in the vertical direction on the front and rear floors can be made even smaller than that of the mobile auditorium according to claim 9.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a side view of the chair 1 with a backrest, FIG. 2 is a plan view of the chair 1 with a backrest, FIG. 3A is a front view of the chair 1 with a backrest, and FIG. b) is a rear view of the chair 1 with a backrest.

  As shown in FIGS. 1 to 3, the chair with backrest 1 of the present embodiment (hereinafter also simply referred to as “chair 1”) stands side by side in the horizontal direction (vertical direction in FIG. 2) with respect to the floor surface. Three legs 1a provided, and a seat 1b that is disposed between each leg 1a and a person can sit on, and a person sitting on the seat 1b is fixed between each leg 1a. A backrest portion 1c for leaning the back, and a plurality (two in this embodiment) are arranged in the front-rear direction (the left-right direction in FIGS. 1 and 2).

An armrest 1d for a person sitting on the chair to put an elbow is attached to the leg 1a.
The seat portion 1b can be rotated from a horizontal state (usage state) in which the seating surface is turned up in a substantially horizontal direction through a support shaft 1e attached to the leg 1a to a substantially upright vertical state. Further, it is supported by a leg 1a arranged with the seat 1b interposed therebetween. The seat portion 1b is biased about the support shaft 1e in the direction in which the seating surface rotates from the horizontal state to the vertical state (that is, the clockwise direction in FIG. 1). When a person sitting on the seat 1b stands up, it automatically rotates so that its seating surface changes from a horizontal state to a vertical state.

On the other hand, a retractable memo stand 2 for use by a person sitting in a chair 1 disposed behind the backrest 1c is attached to each backrest 1c.
As shown in FIGS. 1 to 3, the storage-type memo stand 2 is configured such that the plate-like memo stand main body 10 can be stored in the storage portion 20 from above with the use surface 10 a substantially upright. ing.

  Further, as shown in FIG. 1, the retractable memo stand 2 pulls out the memo stand main body 10 stored in the storage portion 20 from the storage portion 20, and the use surface 10 a of the memo stand main body 10 is substantially omitted. The memo stand main body 10 can be used by rotating it to the horizontal state where it lies on its back in the horizontal direction. Conversely, the memo stand main body 10 is lifted up to a predetermined height position and then the memo stand main body 10 is It is configured to be automatically stored in the storage unit 20.

  Next, the configuration of the retractable memo stand 2 of the present invention will be described in detail with reference to FIGS. 4 and 5. 4 is a cross-sectional view taken along line A-A ′ in FIG. 3B, and FIG. 5 is an exploded perspective view showing the configuration of the retractable memo stand 2.

  4 and 5, the retractable memo stand 2 is attached to the back of the plate-like memo stand main body 10 and the backrest portion 1c of the chair 1, and the memo stand main body 10 has a use surface 10a. A storage unit 20 that can be stored from above in a substantially upright state, a slide rail 30 that is disposed in the storage unit 20 along the vertical direction thereof, and is slidably supported by the slide rail 30 and a memo A support member that supports one end of the memo base body 10 so that the use surface 10a of the memo base body 10 can be rotated from the vertical state to the horizontal state when the base body 10 is pulled out from the storage unit 20. 40.

  The storage portion 20 is attached to the back of the backrest portion 1c, and includes a substantially rectangular frame body 22 having frame portions 22a to 22d formed along the respective sides so as to surround substantially the entire back surface of the backrest portion 1c. Prepare.

  Of the four frame portions 22a to 22d forming the frame body 22, the upper frame portion 22a is thinner than the other three frame portions 22b to 22d (thickness in the front-rear direction of the chair 1). Has been.

Of the frame portions 22a to 22d, the pair of left and right frame portions 22b and 22c are side walls of the storage portion 20, and slide rails 30 are formed on the inner walls of the respective frame portions 22b and 22c.
Moreover, it arrange | positions above frame part 22b, 22c on the opposite side to the chair 1 side rather than the connection part with frame part 22a, and lower than frame part 22a, and connects each frame part 22b, 22c. The beam portion 22e is provided so as to be parallel to the frame portion 22a.

As a result, the frame body 22 is formed with an insertion port 22f for inserting the memo base body 10 into the interior by the frame portions 22a, 22b, 22c and the beam portion 22e.
On the other hand, of the frame portions 22a to 22d, the lower frame portion 22d is formed with a groove notched on the chair 1 side, and the frame 22 is attached to the backrest 1c so that the groove portion is It becomes the discharge port 22g for dropping the member which penetrate | invaded the inside of the said accommodating part 20 from the insertion port 22f to a floor surface.

  Further, a plate member 22h is attached to the frame portion 22d for guiding a member that has entered the interior of the storage portion 20 from the insertion port 22f to the discharge port 22g. The plate member 22h faces the discharge port 22g. Is inclined.

Next, a wall plate 24 is attached to the frame body 22 to prevent the portion surrounded by the frame portions 22b, 22c, 22d and the beam portion 22e from being seen from the outside.
Further, a cover member 26 is attached above the frame body 22 along the frame portion 22a, and both ends of the cover member 26 project to the opposite side of the chair 1 side.

  In addition, in this embodiment, the wall board 24 becomes a side wall of a storage part with frame part 22b, 22c and the backrest part 1c. Further, the cover member 26 is for preventing the slide rail 30 from being seen from above the storage portion 20 and preventing the memo stand main body 10 from being removed from the insertion port 22f.

  The memo stand main body 10 is a plate material formed in a rectangular shape. Of the four side surfaces (the surface used orthogonally to the use surface 10a and the back surface thereof), one set of side surfaces facing each other has a substantially cylindrical shape on one end side. Each support column 12 is attached.

  Further, the memo stand main body 10 protrudes outward from the one end side where the support column 12 is attached along the plate surface direction of the memo stand main body 10, and the tip is curved from the back side toward the use surface 10 a side. A bending member 14 formed as described above is provided.

  The support members 40 are formed in a long shape, and are respectively disposed on both side surfaces of the memo base body 10 to which the support columns 12 are attached. Each of the support members 40 is connected to each column 12 at one end side in the longitudinal direction (the upper side in FIG. 5) so that the memo stand body 10 can be rotated about the central axis of the column 12. ing.

  Each support member 40 is provided with two rotation rollers 42 at positions corresponding to the slide rails 30, and the support members 40 are slidably engaged with the slide rails 30 via the rotation rollers 42. Match.

  Further, the support member 40 is disposed between the rotation rollers 42, and has a substantially columnar column that protrudes inward (on the connection surface side with the memo stand main body 10) so as to be parallel to the central axis of the column 12. 40a is formed.

  Further, each support member 40 is formed into a long and windable plate spring 44a, a winding member 44b for winding the plate spring 44a from one end thereof, and a winding member 44b. A winding device 44 composed of a winding biasing member (not shown) that biases in the direction is attached.

  Specifically, the winding device 44 is attached to each column 40a so that the winding member 44b can rotate around the central axis of the column 40a, and the other end side of the leaf spring 44a is To the beam portion 22e. In the present embodiment, the length of the leaf spring 44a is shorter than the length of the storage unit 20 in the vertical direction.

  Further, one of the winding members 44b (the winding member 44b on the left side in FIG. 5 in this embodiment) is when the winding device 44 rotates in a direction opposite to the direction in which the plate spring 44a is wound. An oil damper 46 as a rotation suppressing member that suppresses the rotation of the winding member 44b is attached.

  The oil damper 46 is a known rotary type oil damper, and includes a main body 46a in which oil is incorporated, and a rotation shaft (not shown) that rotates in the main body 46a and protrudes from the main body 46a. It is fixed to the winding member 44b so as to rotate according to the rotation of the winding member 44b. And when the winding member 44b rotates, the oil damper 46 receives the resistance of the oil in the main body 46a, and thereby suppresses the rotation of the winding member 44b.

On the other hand, the base portion of each support column 40 a is connected to each other via a connecting member 48, and one end 50 a of two coil springs 50 is connected to the connecting member 48.
One end 50 a of each coil spring 50 is fixed to the central portion of the connecting member 48, and the other end 50 b is attached to a columnar round bar member 52. And the round bar member 52 is arrange | positioned at the surface by the side of the use surface 10a of the memo stand main body 10 in the bending member 14 so that the curved surface can slide between the front-end | tip and rear end of the bending member 14. FIG. ing.

  In the present embodiment, the elastic force of the coil spring 50 is determined when the memo stand body 10 is rotated by a predetermined angle counterclockwise as shown in FIG. 4 from the use state (see FIG. 6B described later). The base body 10 is set to automatically rotate counterclockwise in FIG.

  Next, in the retractable memo stand 2 of the present embodiment, the procedure for setting the memo stand main body 10 stored in the storage portion 20 to the use position Xa and the memo stand main body 10 at the use position Xa The procedure of storing in the storage unit 20 will be described with reference to FIG. FIG. 6 shows a procedure for setting the memo base body 10 in the storage section 20 to the use position Xa and a procedure for storing the memo base body 10 at the use position Xa in the storage section 20. FIG. 6A is a schematic diagram illustrating the retractable memo stand 2 when the memo stand main body 10 is in the use position Xa. FIG. 6B is a schematic view illustrating the memo stand main body 10. FIG. 6C is a schematic diagram showing the retractable memo stand 2 when the memo stand main body 10 is in the vertical position Ya when the retractable memo stand 2 is at an inclined position Pa inclined by a predetermined angle from the use position Xa. FIG. 3 is a schematic diagram showing a table 2. FIG. 6 schematically shows only the characteristic part of the present invention, and the description of the winding device 44, the oil damper 46, and the like is omitted.

  In the storage-type memo stand 2 of the present embodiment, when a user (that is, a person sitting on the chair 1) uses the memo stand main body 10, the memo stand main body 10 in a state of being stored in the storage portion 20 is used. As shown in FIG. 6 (c), it is pulled out from the storage unit 20 and rotated clockwise in FIG.

  Then, as shown in FIG. 6A, when the memo stand main body 10 is rotated to the use position Xa (that is, the use surface 10a of the memo stand main body 10 is in a horizontal state), 10a side (specifically, the curved member 14 attached to the memo stand main body 10) abuts on the frame portion 22a, and the back side of the memo stand main body 10 abuts on the beam portion 22e. Is held by the storage unit 20.

Thereby, the user can use the memo stand main body 10.
On the other hand, when the memo stand main body 10 at the use position Xa is stored in the storage portion 20, as shown in FIG. 6B, the memo base main body 10 acting clockwise in FIG. The memo stand main body 10 is lifted to an inclined position Pa where the rotational force of the memo stand main body 10 acting counterclockwise in FIG. 6 is larger than the rotational force.

Then, the memo stand main body 10 automatically rotates from the inclined position Pa to the vertical position Ya.
Here, the round bar member 52 (the other end 50b of the coil spring 50) moves from the rear end side to the front end side of the bending member 14 with the rotation of the memo stand main body 10 when it rotates clockwise in FIG. Moving. Further, in the present embodiment, the curved portion of the bending member 14 is shaped so that the urging force that the coil spring 50 applies to the memo base body 10 is approximately no matter where the round bar member 52 is located on the bending member 14. Designed to be uniform.

Thereafter, the memo base body 10 that has moved to the vertical position Ya slides downward as the support member 40 slides on the slide rail 30, and is stored in the storage unit 20.
As described above, in the present embodiment, when the memo stand main body 10 is pulled out from the storage unit 20 and is in the use position Xa, the rotation direction from the use position Xa to the vertical position Ya is centered on the support column 12. When rotating in the counterclockwise direction in FIG. 6, the round bar member 52 moves from the rear end to the front end of the bending member 14 in accordance with the rotation of the note base body 10, so that the coil spring 50 is moved to the note base main body. It can suppress that the urging | biasing force given to 10 becomes small with the rotation.

  For this reason, according to the retractable memo stand 2 of the present embodiment, the memo stand main body 10 is smoothly lifted with a substantially uniform force (the memo stand main body 10 is rotated in the direction rotating from the use position Xa to the vertical position Ya). When the memo stand main body 10 is stored in the storage portion 20, the memo stand main body 10 is moved from the desired position to the use position Xa by appropriately setting the biasing force that the coil spring 50 applies to the memo base main body 10. To the vertical position Ya in the direction of rotation.

  Therefore, at the time of the storing operation of the memo stand main body 10 by the user, the memo stand main body 10 can be automatically rotated at a desired position and the rotational movement of the memo stand main body 10 at that time can be made smooth.

  Further, according to the retractable memo stand 2 of the present embodiment, when the memo stand main body 10 is stored in the storage portion 20, for example, a member such as a pen or paper placed on the memo stand main body 10 is inside the storage portion 20. Even if it has entered, the member comes out from the discharge port 22g without remaining in the storage unit 20, so that the member that has entered the storage unit 20 is prevented from being caught. Can do.

  Further, in the retractable memo stand 2 of the present embodiment, the take-up device 44 is provided, and when the memo stand main body 10 falls in the storage portion 20, the take-up device 44 is where the leaf spring 44a is fully extended. Since the memo stand main body 10 is stopped, the distance that the memo stand main body 10 falls in the storage unit 20 can be limited.

  For this reason, according to the present embodiment, by appropriately setting the length of the leaf spring 44 a, it is possible to prevent the memo base body 10 from colliding with the bottom of the storage unit 20 when stored in the storage unit 20. can do.

  Moreover, since the oil damper 46 is provided in this embodiment, when the memo stand main body 10 is accommodated in the accommodating part 20, the fall speed of the memo stand main body 10 can fully be suppressed. For this reason, the impact sound generated when the memo stand main body 10 is stored in the storage unit 20 can be reduced, and the burden on the winding device 44 can be reduced.

  Moreover, in this embodiment, since the rotation roller 42 is provided, the operation | work which inserts the memo stand main body 10 into the accommodating part 20 or pulls out the memo stand main body 10 from the accommodating part 20 can be performed smoothly. .

  On the other hand, according to the chair 1 of the present embodiment, since the retractable memo stand 2 of the present invention is attached to the backrest portion 1c, the person sitting on the chair 1 arranged behind the chair 1 is The retractable memo stand 2 to be placed in front of the seated person can be used.

Moreover, since the person sitting on the chair 1 can store the memo stand main body 2 smoothly, the usability of the chair 1 is improved.
Further, according to the chair 1 of the present embodiment, when the user leaves the seat, the seat portion 1b of the chair 1 automatically rotates so that the seating surface is in a vertical state. You can leave your seat quickly.

  In the present embodiment, the chair with backrest 1 corresponds to the base, the leg 1a corresponds to the chair body, and the coil spring 50 corresponds to the biasing member. Further, the leaf spring 44a corresponds to a long member, and the oil damper 46 corresponds to a rotation suppressing member.

As mentioned above, although one Embodiment of this invention was described, it cannot be overemphasized that this invention can take a various form.
For example, in the present embodiment, the retractable memo stand 2 is attached to the backrest portion 1c of the chair 1 with the backrest. However, the present invention is not limited thereto, and for example, a base is attached to the front of the chair 1 on the floor surface. The retractable memo stand 2 may be attached to the base.

  Further, as shown in FIG. 7, the retractable memo stand 2 of the present embodiment is behind a backrest portion 3 c of a chair 3 with a backrest (hereinafter referred to as a chair 3) provided on a floor base 60 of a mobile auditorium. It may be attached. In FIG. 7, the same reference numerals are given to the same configurations as those in the above embodiment, and detailed description thereof is omitted.

  More specifically, the mobile bleacher of FIG. 7 is composed of a plurality of floors 60 with different heights provided with chairs 3, and other floors 60 are located below the uppermost floor 60 when stored. The floors 60 are stored so as to overlap in order, and in use, the lowermost floor base is pulled out, so that each floor base 60 is expanded in order to form a staircase-shaped auditorium.

  The chair 3 is supported by a leg 3a (corresponding to the chair body of the present invention) erected on the floor base 60, a seat 3b supported by the leg 3a and a person to sit on, and the leg 3a. A backrest 3c for a person sitting on the seat 3a to bend his back, and the seat 3b can be folded with respect to the backrest 3c. And is foldable.

  On the other hand, the vertical spacing between the floor 60 and the upper and lower floors 60 adjacent thereto is such that the seat 3b is folded with respect to the backrest 3c and the chair body 3b is with respect to the floor 60. The chair 3 is opened by the height of the folded chair 3.

  In the movable bleacher seat of FIG. 7 as described above, the floor 60 in the lowermost stage is moved toward the front of the chair 3 from the state in which all the floors 60 are stored, so that each floor 60 is stepped. After the seat 3b is folded with respect to the backrest 3c and the leg 3a is folded with respect to the floor base 60, the floor base 60 can be used. Each floor pedestal 60 can be stored in a shelf shape by moving toward the rear of the chair 3.

  According to the mobile bleacher of FIG. 7 as described above, the retractable memo stand 2 of the present invention is attached to the backrest part 3c of each chair 3, so that a predetermined floor base is used when the mobile bleacher is used. A person sitting on a chair 3 provided at 60 may use the retractable memo stand 2 of the chair 3 disposed in front of the person on the floor base 60 disposed below the floor base 60. it can.

  Moreover, since the person who sat on the chair 3 of a mobile bleacher can accommodate the memo stand main body 10 smoothly, the usability of a mobile bleacher is improved.

It is a side view of the chair with a backrest of embodiment. It is a top view of the chair with a backrest of the embodiment. It is the front view and back view of a chair with a backrest of the embodiment. It is sectional drawing in A-A 'of FIG.3 (b). It is a disassembled perspective view showing the structure of the storage-type memo stand of embodiment. It is explanatory drawing explaining the procedure until a memo stand main body in the state accommodated in the accommodating part is set to a use position, and the procedure which accommodates the memo stand main body in a use position in a accommodating part. It is a side view of the mobile bleachers of the embodiment. It is a side view of the conventional storage-type memo stand. It is explanatory drawing explaining the conventional storage-type memo stand.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1,3 ... Chair with backrest, 1a, 3a ... Leg, 1b, 3b ... Seat part, 1c, 3c ... Backrest part, 2 ... Retractable memo stand, 10 ... Memo stand main body, 10a ... Use surface, 12 DESCRIPTION OF SYMBOLS ... Column, 14 ... Curve member, 20 ... Storage part, 22 ... Frame, 22a-22d ... Frame part, 22e ... Beam part, 22f ... Insertion port, 22g ... Discharge port, 22h ... Plate member, 24 ... Wall board 26 ... Cover member, 30 ... Slide rail, 40 ... Support member, 40a ... Post, 42 ... Rotating roller, 44 ... Winding device, 44a ... Plate spring, 44b ... Winding member, 46 ... Oil damper, 46a ... Main body, 48: connecting member, 50: coil spring, 52: round bar member, 60: floor base, Pa: inclined position, Xa: use position, Ya: vertical position.

Claims (10)

A plate-shaped memo stand body;
A storage unit that is attached to a base that is erected on the floor, and that can store the memo stand main body from above in a state in which the use surface is substantially upright,
A slide rail arranged along the vertical direction inside the storage unit;
The slide rail is slidably supported, and when the memo stand main body is pulled out from the storage portion, the use surface of the memo stand main body is turned upright in a substantially horizontal direction from a substantially upright vertical state. A support member that supports one end side of the memo stand main body so as to be rotatable to a state;
A memo stand with a
From one end side of the memo stand main body supported by the support member, it protrudes outward along the plate surface direction of the memo stand main body, and its tip is curved from the back side toward the use surface side. A formed bending member;
A connecting member connected below the support member and slidably supported with the support member with respect to the slide rail;
Each end is attached to the bending member and the connecting member, and a biasing member for biasing the memo stand main body in a direction in which the use surface rotates from the horizontal state to the vertical state;
With
The retractable memo stand, wherein an end of the urging member on the bending member side is slidably attached between a front end and a rear end of the bending member. An insertion port for inserting the memo stand main body into the inside is formed above the storage portion,
The storage-type memo according to claim 1, wherein a discharge port for dropping a member that has entered the storage unit from the insertion port to the floor surface is formed at the bottom of the storage unit. Stand.   The inner wall of the storage unit is such that when the memo stand main body is stored in the storage unit, the width of the storage part in the plate thickness direction of the memo base main body is narrower at the discharge port than at the insertion port. The stowable memo stand according to claim 2, wherein the stowable memo stand is further formed and inclined toward the discharge port. A long member that is formed into a long shape and can be wound up, a winding member for winding the long member from one end thereof, and a winding member that biases the winding member in the winding direction A winding device comprising a force member,
In the winding device, the other end of the long member and one of the winding members are attached to the support member or the connecting member, and the other end of the long member and the other of the winding member are The retractable memo stand according to any one of claims 1 to 3, wherein the retractable memo stand is attached above the storage portion.   A rotation suppression member is provided that is attached to the winding member of the winding device and that suppresses rotation of the winding member when the winding member rotates in a direction opposite to the direction in which the long member is wound. The stowable memo stand according to claim 4, wherein:   The retractable memo stand according to any one of claims 1 to 5, wherein a rotation roller is provided at an engaging portion between the support member, the connecting member, and the slide rail. A seat for a seated person to sit on;
A chair body which is installed on the floor and supports the seat substantially horizontally;
A backrest that is supported by the chair body and for a seated person sitting on the seat to lean back;
A chair with a backrest,
A chair with a backrest, wherein the retractable memo stand according to any one of claims 1 to 6 is attached behind the backrest portion. It consists of multi-level floors with different heights with chairs.When storing, the other floors are stored in order under the uppermost floor, and when used, the lowermost floor is By being pulled out, each floor base is deployed in order to form a staircase-shaped bleacher seat,
The chair according to claim 7, wherein the chair is arranged so that a front side thereof faces a direction in which the floor base is pulled out. The chair with the backrest is configured so that the backrest portion can be folded with respect to the seat portion,
The vertical distance between the floor base and the upper and lower floor bases adjacent to the floor base is that the backrest is opened by the height of the chair with the backrest in a state of being folded with respect to the seat. The mobile bleachers as claimed in claim 8, characterized in that: The chair with the backrest is configured to be foldable with respect to the backrest, and the chair body is configured to be foldable with respect to the floor.
The vertical distance between the floor base and the upper and lower floor bases adjacent thereto is such that the seat is folded with respect to the backrest and the chair body is folded with respect to the floor base. 9. The mobile bleacher seat according to claim 8, wherein the seat is opened by the height of the chair with backrest.

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