Mobile Table System

Abstract

To provide a mobile table system that is easy to move and has excellent space-saving properties when not in use. [Solution] The mobile table system 1 is mainly composed of a table section 2, a chair section 3, and a base plate section 4, and the table section 2 and the chair section 3 are integrated via an arm section 5. The arm section 5 is axially supported so that the chair section 3 can rotate horizontally between a storage position where it is stored directly below the top plate 21 of the table section 2, and a use position where it is pulled outward from the top plate 21. Furthermore, caster sections 7 are evenly arranged on the bottom surface of the base plate 4 to keep the table section 2 horizontal, making it possible to easily move the table section 2 and chair section 3 integrated together to any location.

Description

[Technical Field]

[0001] The present invention relates to a mobile table system, and more particularly to a mobile table system that integrates a table and chairs, which is easy to move and saves space when not in use. [Background technology]

[0002] Conventionally, dining sets and office sets consisting of a table and chairs are composed of a table alone with its own supporting legs on the table top and a chair alone, and these tables and chairs are used as a set in a separate state.

[0003] For example, Patent Document 1 discloses a dining set that consists of a fixed dining table and multiple chairs, and when there are any unused chairs, the seats of the extra chairs can be stored by tucking them under the table top, and the seat surfaces of the stored seats can be used as a temporary storage area for small items.

[0004] Patent Document 2 also discloses office furniture consisting of a fixed table and a roughly cubic chair with casters at the bottom that allows it to be moved freely, with multiple chairs arranged around a desk for use by multiple people. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Utility Model Application Publication No. 6-24546 [Patent Document 2] Japanese Patent Application Laid-Open No. 2014-90859 Summary of the Invention [Problem to be solved by the invention]

[0006] In dining rooms where dining tables are used, there is a desire to change the dining location depending on the mood of the occupants that day, the weather, etc. Similarly, in offices, rather than conducting daily work in fixed positions for employees' seats and meeting locations, there is a desire to be able to freely change the layout depending on the mood of employees or the content and members of meetings being held.

[0007] However, in the dining set disclosed in Patent Document 1, the table and chairs are separate, so moving such a dining table requires the cooperation of several people, which requires a great deal of effort. Similarly, in the office furniture disclosed in Patent Document 2, the table and chairs are separate, so each piece needs to be moved by several people. While the chairs disclosed in Patent Document 2 are equipped with casters, making them easy to move, they are often moved to various locations in a room due to their versatility, which can lead to chairs being scattered around the room and becoming a nuisance.

[0008] The present invention was devised in consideration of the above points, and aims to provide a mobile table system that combines a table and chair, which is easy to move and saves space when not in use. [Means for solving the problem]

[0009] In order to achieve the above-mentioned object, the mobile table system of the present invention comprises a table section having a top plate and a plurality of legs that hang downward from the top plate and are evenly arranged to keep the top plate horizontal; a bottom plate section that is fixed to the lower ends of the legs and is arranged opposite the top plate; at least one chair section that has a seat plate and a support pillar that hangs downward from the seat plate; an arm section that has one end pivoted at a predetermined position on the bottom plate section and the other end pivoted to the support pillar, and that is rotatable horizontally between a storage position where the seat plate is located directly below the top plate and a use position where the seat plate is pulled outward from the top plate; and a plurality of caster sections that are evenly arranged at predetermined positions on the bottom plate section so that the table section remains horizontal.

[0010] The mobile table system has a table part with a top and legs, so that tableware for meals and documents for meetings can be placed on the top. In addition to meals and meetings, it can also be used as a work table for writing and other purposes.

[0011] Furthermore, by providing a bottom plate portion fixed to the lower end of the legs and facing the top plate, the arm portion that supports the chair portion (described below) can be fixed to the bottom plate portion. Furthermore, since the bottom plate portion is fixed to the lower end of the legs so as to face the top plate, the strength of the table portion can be increased.

[0012] In addition, by providing at least one chair section having a seat plate and a support pillar hanging downward from the seat plate, users can sit on the chair section and eat, have meetings, or work.

[0013] Furthermore, by providing an arm with one end pivotally supported at a predetermined position on the base plate and the other end pivotally supported by a support column, the table and chair can be integrated via the arm, making the entire system compact and allowing it to be installed in a small space, and preventing the chair from being scattered around the room.

[0014] Furthermore, the arm portion can rotate horizontally between a storage position where the seat is located directly below the tabletop and a use position where the seat is pulled outward relative to the tabletop, so that the chair portion can be stored in the storage position directly below the tabletop when not in use, and can be set to the use position by rotating it outward from the storage position when in use.

[0015] Furthermore, by providing multiple casters evenly spaced at predetermined positions on the bottom plate to keep the table level, the mobile table system can be easily moved by one person. Therefore, for example, if the mobile table system is used as a dining table, it can be easily moved to a preferred position depending on the mood or weather of the day and used for meals.

[0016] Furthermore, if a locking mechanism is provided that includes a lock pin engagement hole formed at a predetermined position on the arm portion, and a first lock pin and a second lock pin that are installed at a predetermined position on the bottom plate portion and can be protruded and retracted into the lock pin engagement hole, the arm portion can be reliably locked or unlocked at any position with a simple configuration.

[0017] In addition, when the seat plate is in the storage position, the locking mechanism has the first lock pin sink into the lock pin engagement hole to enter a locked state, and when an external force exceeding a preset value acts horizontally on the arm portion from the locked state, the first lock pin disengages from the lock pin engagement hole, allowing the arm portion to rotate horizontally from the storage position toward the use position, and when the arm portion rotates to the use position, the second lock pin sinks into the lock pin engagement hole to enter a locked state, allowing the seat plate to be securely locked in both the storage position and the use position.

[0018] When the mobile table system is moved, the seat plate can be locked in the stored position by engaging the lock pin engagement hole in the arm portion with the first lock pin in the base plate portion. This prevents the seat plate from spreading outward when the mobile table system is moved, reducing the risk of collisions with surrounding objects or people and increasing safety during movement.

[0019] On the other hand, when a user sits on the seat to eat or work, they can apply a certain external force to the arm to rotate the seat, and the lock pin engagement hole in the arm engages with the second lock pin in the bottom plate, locking the seat in the use position. This prevents the seat from accidentally rotating horizontally during use, increasing safety during use.

[0020] Furthermore, when the bottom plate is substantially H-shaped or I-shaped in plan view, and is configured by a first member and a second member, to which legs are fixed and arranged opposite each other, and a third member, which is installed between the first and second members, the rigidity of the bottom plate can be increased. Furthermore, the arm is pivotally supported by the first member or the second member, thereby ensuring a range of motion for the arm.

[0021] In addition, if a cushioning material is interposed between the arm portion and the bottom plate portion, the bottom plate portion can be prevented from being damaged by rotational friction when the arm portion rotates, allowing the arm portion to rotate more smoothly.

[0022] The support pillars of the chair are composed of an upper support pillar connected to the seat plate and a lower support pillar connected to the upper support pillar via an elastic member, and when no load is applied to the seat plate, the lower support pillar is positioned at a height above the installation surface, and when a vertically downward load is applied to the seat plate, the upper support pillar presses the elastic member and the lower support pillar is placed on the installation surface, for example, when the chair is not in use and no load is applied to the seat plate, the lower support pillar is positioned at a height above the installation surface, so the chair can be smoothly rotated to the storage position. Furthermore, when the mobile table system is moved, the lower support pillar does not come into contact with the floor, so smooth movement can be achieved.

[0023] On the other hand, when the chair is pulled outward and the user sits on the seat, and a vertical load acts on the seat, the upper support column presses the elastic member downward, causing the lower support column to move downward and come into contact with the floor. As a result, the load acting on the seat when the user sits is supported by the entire support column, preventing damage to the chair and allowing the user to remain in a stable seated position. [Effects of the Invention]

[0024] The mobile table system according to the present invention integrates the table and chair, making it easy to move and saving space when not in use. [Brief explanation of the drawings]

[0025] [Figure 1] 1A and 1B are perspective views showing a mobile table system according to an embodiment of the present invention, in which FIG. 1A shows a stored state and FIG. 1B shows a used state. [Figure 2] 1A and 1B are plan views showing a mobile table system according to an embodiment of the present invention, in which FIG. 1A shows a stored state and FIG. 1B shows a used state. [Figure 3] 1A is a front view of a mobile table system according to an embodiment of the present invention, FIG. 1B is an enlarged view of the main part of the chair when not in use, and FIG. 1C is an enlarged view of the main part of the chair when in use. [Figure 4]1 is an enlarged cross-sectional view of a main part of an arm portion and a bottom plate portion of a movable table system according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0026] Hereinafter, a mobile table system according to an embodiment of the present invention will be described with reference to the drawings to facilitate understanding of the present invention. In each drawing, for the sake of convenience, when the mobile table system is installed on an installation surface (floor surface), the direction going upward is defined as the up direction, the direction opposite to the up direction is defined as the down direction, the axial direction represented by the up and down directions is defined as the vertical axis, and the axial direction perpendicular to the vertical axis is defined as the horizontal axis.

[0027] 1 to 3 are diagrams showing a mobile table system according to an embodiment of the present invention. Mobile table system 1 can be used, for example, as a dining table for eating meals, and is configured to be an integrated unit of a table section 2 having a top plate 21 and legs 22 that support the top plate 21, and a chair section 3 having a seat plate 31 and supports 32 that support the seat plate 31. The detailed structure of mobile table system 1 will be described below.

[0028] In the following embodiment, a dining table will be used as an example of the mobile table system 1, but the use of the mobile table system 1 is not particularly limited, and it can also be used as office furniture for use in meetings, etc.

[0029] [Table section] As described above, the table portion 2 is composed of a top plate 21 and legs 22. The table portion 2 is, for example, a plate-like body that is approximately rectangular in plan view, and the top plate 21 has a length and width sufficient to allow tableware and the like to be placed on it when eating. The corners of the top plate 21 are rounded or otherwise chamfered to provide a shape suitable for normal use. The material of the top plate 21 is not particularly limited, and it may be made of various materials, including wood and metal materials such as iron. The shape of the table portion 2 is not limited to an approximately rectangular shape, and it may also be square, polygonal, or circular. A storage stand 23 may be installed directly below the top plate 21 to temporarily place luggage, tableware, and the like.

[0030] The legs 22 are arranged to extend from the underside of the top plate 21 toward the upper surface of the bottom plate 4 described below, and a pair are installed facing each other at both ends of the top plate 21 in the longitudinal direction and approximately in the center in the short direction so that the top plate 21 and the bottom plate 4 are parallel to the floor surface.

[0031] The material of the legs 22 is not particularly limited, but using the same type of material as the tabletop 21 will result in a suitable design. The height of the legs 22 is set to a length (for example, 70 to 80 cm) that does not interfere with the movement of the chair 3 described below and is appropriate for a person sitting on the chair 3. Furthermore, the legs 22 may take the form of, for example, four rectangular pillars that are installed at the four corners of the back surface of the tabletop 21.

[0032] [Bottom plate] The bottom plate 4 is disposed opposite the top plate and is composed of a first member 41 and a second member 42 to which the lower ends of the legs 22 are fixed, and a third member 43 that connects the first member 41 and the second member 42 together, and is a plate-like body that is approximately H-shaped or I-shaped in plan view. One end of an arm portion 5 that supports the seat portion 3, which will be described later, is fixed to the first member 41 of the bottom plate 4. In the embodiment of the present invention, the first member 41 is configured to be longer than the second member 42, but the first member 41 and the second member 42 may also be configured to be the same length.

[0033] Here, the bottom plate 4 does not necessarily have to be configured in a substantially H-shaped or I-shaped configuration in a plan view using the first member 41, the second member 42, and the third member 43. For example, it may be configured only with the first member 41 and the second member 42 that secure the bottom surfaces of the legs 22. However, by configuring the bottom plate 4 in a substantially H-shaped or I-shaped configuration in a plan view, it is possible to increase the strength of the bottom plate 4 and also increase the strength of the table 2. In particular, the arm 5 that supports the chair 3 is rotatably supported on the first member 41 as described below, and by increasing the strength of the bottom plate 4, it is possible to prevent damage to the bottom plate 4 due to repeated rotational movements of the arm 5.

[0034] The material of the bottom plate portion 4 is not particularly limited, but from the viewpoint of increasing strength, it is preferable to use a metal material rather than wood.

[0035] [Chair] The chair section 3 is configured so that a user can sit on it, and a pair of chair sections 3 are installed with a top board 21 in between. The chair section 3 is composed of a seat plate 31 located below the top board 21, and a support pillar 32 extending from the back surface of the seat plate 31 toward the floor. The chair section 3 may be provided with armrests and a backrest as needed.

[0036] As shown in Figure 3, the support pillars 32 of the chair section 3 are made up of upper support pillars 321 connected to the seat plate 31 and lower support pillars 322 that can be installed on the floor, with upper support pillars 321 inserted into bottomed support tubes 323 that open upward via springs 324, and lower support pillars 322 are placed on the bottom of support tubes 323. Lower support pillars 322 can be made with a screw-type adjustment mechanism, for example, and the height position of lower support pillar 322 can be changed by turning the screw in the tightening or loosening direction, thereby allowing the overall length of support pillar 32 to be extended or contracted.

[0037] When the chair 3 is not in use, the biasing force of the spring 324 positions the lower support 322 at a height spaced above the floor, as shown in Figure 3(b), allowing the chair 3 to be smoothly rotated to the storage position. Furthermore, when the mobile table system 1 is moved, the base 33 does not come into contact with the floor, allowing for smooth movement.

[0038] On the other hand, when the chair section 3 is pulled outward and the user sits on the seat plate 31 of the chair section 3, the upper support pillar 321 presses the spring 324 downward, causing the lower support pillar 322 to be pushed downward and come into contact with the floor, as shown in Figure 3(c). As a result, the load acting on the seat plate 31 when the user sits down is supported by the support pillar 32, preventing damage to the chair section 3 and allowing the user to maintain a stable seated position.

[0039] Although the seating section 3 shown in the embodiment of the present invention has two seating sections 3 facing each other across the top board 21 of the table section 2, two seating sections 3 may be installed side by side. Also, it is possible to install one seating section 3, or three or more seating sections 3.

[0040] [Arm] The arm portion 5 is a long frame member, one end of which is pivotally supported by a bolt and nut on the first member 41 of the bottom plate portion 4, and the other end of which is pivotally supported by a predetermined fixing means on the support column 32 of the chair portion 3. The chair portion 3 is connected to the bottom plate portion 4 via this arm portion 5, thereby integrating the table portion 2 and the chair portion 3. The arm portion 5 can rotate horizontally, using the connection point with the bottom plate portion 4 as a base point, between a storage position in which the top plate 21 of the chair portion 3 is stored directly below the top plate 21 of the table portion 2, and a use position in which it is pulled outward for a user to sit down.

[0041] The arm portion 5 may be configured such that the arm portion 5 supporting one of the seat portions 3 is pivotally supported by the first member 41, and the other seat portion 3 is pivotally supported by the second member .

[0042] In addition, cushioning material such as high molecular weight polyethylene, which has good slip resistance, may be provided on the bottom plate 4 over the rotation range of the arm 5. By providing cushioning material between the arm 5 and the bottom plate 4, damage to the bottom plate 4 and the arm 5 due to friction when the arm 5 rotates can be prevented.

[0043] The arm portion 5 has a locking mechanism 6 for fixing the chair portion 3 in each of the storage position and the use position. The locking mechanism 6 is composed of a locking pin engagement hole 63 formed on the rotation axis side of the arm portion 5, and a first locking pin 61 and a second locking pin 62 provided on the bottom plate portion 4 and capable of projecting and retracting into the locking pin engagement hole 63 formed in the arm portion 5.

[0044] As shown in Fig. 4, the first lock pin 61 and the second lock pin 62 are configured to move downward when a certain external force is applied from a state in which they are constantly biased upward (in the protruding direction) by a spring 64. When the chair section 3 is in the storage position, the first lock pin 61 is inserted into the lock pin engagement hole 63 of the arm section 5, thereby restricting the rotation of the arm section 5 (locked state). Therefore, when the mobile table system 1 is moved to a predetermined position, the chair section 3 will not inadvertently rotate outward during the movement, thereby improving safety during the movement.

[0045] On the other hand, when using the chair 3 after the mobile table system 1 has been moved to a predetermined position, the user grasps the chair 3 and rotates it outward. When an external force is applied to the first lock pin 61 during the rotation, the first lock pin 61 is disengaged from the lock pin engagement hole 63 (unlocked state), allowing the arm 5 to rotate outward. Furthermore, the second lock pin 62 is inserted into the lock pin engagement hole 63 of the arm 5, restricting the rotation of the chair 3 in the use position (locked state). This prevents the chair 3 from rotating unintentionally even when the user is seated on the seat plate 31 to eat, thereby improving safety during use.

[0046] [Caster section] Caster units 7 are installed at equal positions on the four corners of the first member 41 of the bottom plate portion 4 to allow the mobile table system 1 to slide in contact with the ground. The provision of these caster units 7 makes it possible to easily move the mobile table system 1 to a predetermined position. The caster units 7 can also be switched between a locked state, which restricts the rotation of the wheels, and an unlocked state, which allows the rotation of the wheels, and the locked and unlocked states can be switched using an operating unit 83, which will be described later.

[0047] [Handle] The handle portion 8 is composed of an attachment jig 81 attached to the top plate 21 and a grip portion 82 that is held by the operator. When the operator moves the movable table system 1, the operator can move the movable table system 1 to a predetermined position by pushing, pulling, or turning the movable table system 1 while holding the grip portion 82.

[0048] Each wheel of the caster unit 7 is connected to the handle unit 8 via a transmission element such as a wire (not shown). By operating the operation unit 83 provided on the handle unit 8, each wheel of the caster unit 7 can be easily switched between a locked state and an unlocked state.

[0049] Here, it is not necessary to use the operating unit 83 to switch between the locked and unlocked states of each wheel of the caster unit 7, but rather, for example, it is also possible to operate a locking mechanism provided on each wheel of the caster unit 7. However, by switching using the operating unit 83, the user can easily switch between the locked and unlocked states by operating it at hand without changing their position.

[0050] Furthermore, it is not necessary to use a wire as a locking mechanism for the wheels of the caster portion 7, and it may be possible to switch between a locked state and an unlocked state based on, for example, an electric signal.

[0051] As described above, the mobile table system 1 according to the embodiment of the present invention has the table portion 2 and chair portion 3 integrated together and has casters 7 on the bottom, so it can be easily moved to a preferred location depending on the user's mood, the weather, etc. Furthermore, even when used as office furniture, the mobile table system 1 can be easily moved to a predetermined location depending on the user's mood, the content of the meeting being held, and the participants. Furthermore, when not in use, the chair portion 3 can be stored directly under the top plate 21 of the table portion 2, so it can be installed in a space-saving manner.

[0052] As described above, the mobile table system according to the present invention is easy to move and has excellent space-saving properties when not in use. [Explanation of symbols]

[0053] 1. Mobile table system 2 Table section 21 Top plate 22 Legs 23 Storage stand 3. Chair 31 Seat board 32 Pillar 321 Upper Support 322 Lower Support 323 Support pipe 324 Spring 4 Bottom plate part 41 First member 42 Second member 43 Third member 5 Arm section 6 Locking mechanism 61 First lock pin 62 Second lock pin 63 Lock pin engagement hole 64 Spring 7 Caster part 8 Handle 81 Mounting jig 82 Gripping part 83 Operation section

Claims

1. a table portion having a top plate and a plurality of legs that hang downward from the top plate and are evenly arranged to keep the top plate horizontal; a bottom plate portion fixed to the lower end of the leg portion and facing the top plate; At least one or more chair parts having a seat plate and a support pillar extending downward from the seat plate; an arm portion having one end pivotally supported at a predetermined position on the bottom plate portion and the other end pivotally supported by the support column, the arm portion being horizontally rotatable between a storage position in which the seat plate is located directly below the top plate and a use position in which the seat plate is pulled outward relative to the top plate; a plurality of caster parts evenly arranged at predetermined positions on the bottom plate part so that the table part can be kept horizontal; a locking mechanism for fixing the arm portion at each of the storage position and the use position; the locking mechanism includes a lock pin engagement hole formed at a predetermined position on the arm portion, and a first lock pin and a second lock pin that are installed at predetermined positions on the bottom plate portion and can protrude into and retract from the lock pin engagement hole, When the seat plate is in the storage position, the first lock pin is inserted into the lock pin engagement hole to be in a locked state, and when an external force exceeding a preset value acts in the horizontal direction of the arm portion from the locked state, the engagement state of the first lock pin with the lock pin engagement hole is released, and the seat plate is allowed to rotate in the horizontal direction of the arm portion from the storage position toward the use position, When the arm portion rotates to the use position, the second lock pin is inserted into the lock pin engagement hole to establish a locked state. Mobile table system.

2. the bottom plate portion is generally H-shaped or I-shaped in plan view and is configured by a first member and a second member to which the leg portions are fixed and which are arranged opposite to each other, and a third member which is bridged between the first member and the second member, The arm portion is pivotally supported by either the first member or the second member. The mobile table system of claim 1 .

3. A buffer material is interposed between the arm portion and the bottom plate portion.

3. The mobile table system according to claim 1 or 2.

4. The support pillars of the chair part are composed of an upper support pillar connected to the seat plate and a lower support pillar connected to the upper support pillar via an elastic member, When no load is applied to the seat plate, the lower support is positioned at a height spaced above the installation surface, When a vertically downward load acts on the seat plate, the upper support column presses the elastic member, and the lower support column is placed on the installation surface.

3. The mobile table system according to claim 1 or 2.

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