JPH11334444A - Stored type table - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reasonable table storing mechanism, to save installing space and to improve handleability. SOLUTION: A housing box 1 and a table 2 are constructed in such a manner that a center table part also serving as an attaching part bending the table plate part of the table and the table placing the center table part also serving as an attaching part straight to a rotary arm 13 are housed in the housing box. Between the center table part also serving as an attaching part and the rotary arm, a supporting mechanism is provided for supporting the center table part also serving as an attached part in its used state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retractable table provided in a room such as a vehicle.

[0002]

2. Description of the Related Art Conventionally, Japanese Patent Application Laid-Open No. 9-109778 discloses a storage box having left and right and front and rear peripheral walls movably provided on a floor of a vehicle and a lid; It describes a configuration in which a box is provided with a plate-shaped table which is slidable up and down and is rotated at an upper position, and support legs which are undulating are provided on the lower surface of the table.

[0003]

In the above-mentioned known example, the table is simply stored vertically, pulled out upward, and then laid sideways, so that the height of the use position is low and the height of the use position is high. Then, there is a problem that the size of the storage box becomes large. In addition, the support legs that can be raised and lowered are provided on the lower surface of the table. However, if the support legs are not taken in and out, the table cannot be taken in and out, and there is a problem that two operations are required and the operation is troublesome.

[0004]

The object of the present invention is to provide a reasonable table storage mechanism, save installation space, and improve usability.

[0005]

SUMMARY OF THE INVENTION The present invention is directed to opening and closing the left and right and front and rear peripheral walls which are fixed or movably provided on a predetermined floor surface and which have a rectangular opening 3 at least on the upper surface. A storage box 1 having a lid 6 to be rotated, a rotating arm 13 having a base rotatably attached to the storage box 1, and a tip of the rotating arm 13 between a straight state and a bent state. Between the mounting portion / center table portion 11 movably mounted and a use position where the mounting portion / center table portion 11 is pivotally opened so as to open sideways with respect to the mounting portion / center table portion 11 and a storage position parallel to the mounting portion / center table portion 11. The storage box 1 and the table 2 are a mounting part and a center table part 1 formed by bending the table plate part 10 of the table 2.
1 and the table 2 in which the mounting part / center table part 11 is linearly arranged on the rotating arm 13 is stored in the storage box 1, and the mounting part / center table part 11 and the rotating arm 13 Between them, a storage type table provided with a support mechanism 32 for supporting the mounting portion and the center table portion 11 in use is provided. In the present invention, the support mechanism 32 is a retractable table constituted by a telescopic support member 33. In the present invention, the telescopic support member 33 is divided into a distal arm 34 and a base arm 35, and the distal arm 34 and the base arm 35 are formed with long insertion holes 38, 39, respectively, in the length direction. A moving shaft 41 fixed to the base side arm 35 is inserted into the insertion hole 38,
A movable table 40 fixed to the distal arm 34 is inserted into the insertion hole 39 so as to be a retractable table configured to be expandable and contractible. The present invention is a storage-type table provided with a step 54 protruding inward at the end of the insertion holes 38 and 39. In the present invention, the distal arm 34 is formed in a plate shape, and the distal end is formed in a narrow portion 45 having a distal insertion hole 38, and the base arm 35 is fitted with the narrow portion 45. This is a storage type table configured by providing a pair of holding portions 47 having the base side insertion holes 39 on both sides of a space portion 49 having a width. According to the present invention, one of the table plate portion 10 and the mounting portion / center table portion 11 is provided with an engagement projection 12a, and the other is provided with an engagement hole 12b with which the engagement projection 12a is engaged. The engagement protrusion 12a and the engagement hole 12b are engaged with each other to be rotatably mounted, and when a load is applied to each table plate portion 10, the engagement between the engagement protrusion 12a and the engagement hole 12b is released. This is a storage type table configured to be detached from the attachment / center table section 11.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Is a storage box for storing the table 2, which has at least left and right walls 4 and front and rear walls 5 erected so as to have a rectangular opening 3 on the upper surface, and a lid 6 for opening and closing the opening 3. It is configured and provided at an arbitrary position in the vehicle. Reference numeral 7 denotes a mounting member for the lid 6. The table 2 is configured so as to be freely displaceable between a storage position where the table 2 is folded and stored in the storage box 1 and a use position where the table 2 is taken out of the storage box 1 and used. A pair of left and right table boards 10 constituting the table 2 are provided, and the base of each table board section 10 is attached to both left and right sides of the attachment section / center table section 11. Each table plate portion 10 is provided with an engagement protrusion 12a projecting in the front-rear direction. The engagement protrusion 12a is attached by being engaged with an engagement hole 12b provided in the mounting portion / center table portion 11, and attached to each table plate portion 10. When a load is applied, the engagement protrusion 12
a is disengaged from the engaging hole 12b of the mounting portion / center table portion 11. It is preferable that a part of the mounting part / center table part 11 is formed of metal and the engaging hole 12b is formed in the metal part, because only the table plate part 10 comes off and the engaging hole 12b is not damaged. .

The table plate 10 is in the retracted state when it stands vertically with respect to the mounting part / center table part 11 when it is in the horizontal state.
The use state is when the plane is flush with the plane 1 and the rotation state is arbitrarily configured to stop at each position of the storage state and the use state. The base of the mounting part / center table part 11 is rotatably mounted on the tip of a rotating arm 13 by a shaft member 14. The mounting part and center table part 11 is a rotating arm 1
3 is a state of being retracted or in the middle of displacement, and a state of horizontal movement so as to intersect with the rotating arm 13 is a use state, and the rotation stops at the respective positions of the storage state and the use state. To be configured. The base of the rotating arm 13 is rotatably attached to a rear portion of the left and right walls 4 of the storage box 1 by a shaft member 15 in a left-right direction. The rotating arm 13 has a distal end formed in a flat plate portion 16, and a base portion 17 of the rotating arm 13 is provided with a use position abutting portion 18 that projects laterally when the rotating arm 13 is erected. The use position contact portion 18 is configured so as to be overlapped in a plan view in a state where it is closed with a part (rear side portion) of the lid 6, and the lid 6 of the overlapped portion is formed on the pressing portion 19. In addition, a storage position contact portion 20 that contacts the press portion 19 is formed below the press portion 19 in a state where the rotating arm 13 is stored, and the use position contact portion 18 and the storage position contact portion 20 are in contact with each other. A stopper mechanism 21 is configured to hold the rotating arm 13 at each of the use position and the storage position by the pressing portion 19.

The use position abutment portion 18 and the storage position abutment portion 20 each have an inclined surface which is inclined in an "eight" shape and spreads at a joint portion between the flat plate portion 16 and the base portion 17 as the distance from the flat plate portion 16 increases. 24. On the rear side of the storage box 1, the upper part of the front and rear
5 is formed, the base 17 is fitted in the space 25, and the shaft member 15 is mounted. Reference numeral 26 denotes an arc surface conforming to the arc of the rear surface of the rear wall 5 of the storage box 1 following the storage position contact portion 20. Also, the mounting part and center table part 1
A draw-out assisting portion 30 is provided on the back side surface (the upper surface at the time of storage) of the device 1 by a recess or a belt. The table 2 is composed of the table plate portion 10, the mounting portion / center table portion 11, and the rotating arm 13, and the table plate portion 10 is folded to rotate with the mounting portion / center table portion 11. When the arm 13 is straightened and rotated about the shaft member 15, the arm 13 is housed in the storage box 1. On the contrary, when the arm 13 is rotated upward about the shaft member 15, the arm 13 is pulled out.
Mounting part and center table part 11 for the rotating arm 13
Is rotated to bend, and then the table plate 10 is rotated with respect to the mounting portion / center table portion 11, so that the table 2 is used.

Thus, a support mechanism 32 for supporting the mounting portion and center table 11 in use is provided between the mounting portion and center table 11 and the rotating arm 13. The support mechanism 32 divides the telescopic support member 33 into two parts, a distal arm 34 and a base arm 35.
The base 4 and the base arm 35 are pivotally mounted on the mounting / central table 11 and the pivot arm 13 by shafts 36 and 37, respectively. The distal arm 34 and the base arm 35 are long, respectively. A moving shaft 40 fixed to the distal end of the distal arm 34 is inserted through the proximal insertion hole 39 and fixed to the distal end of the base arm 35. Of the moving shaft 41 of the distal end side insertion hole 38
Through. In addition, the distal side insertion hole 38 and the base side insertion hole 3
9 is superposed in a side view to reduce the thickness of the distal arm 34 and the base arm 35.

In the embodiment, the distal end side insertion hole 38 is formed in the narrow portion 45 of the distal end arm 34, and an insertion hole 46 for inserting the moving shaft 40 through the distal end of the narrow width portion 45 is formed. The base side insertion hole 39 is formed in a pair of left and right holding portions 47 of the base side arm 35, and each of the holding portions 4.
An insertion hole 48 for inserting the moving shaft 41 is formed at the tip of the nozzle 7. A space 49 is formed between the holding portions 47 of the base arm 35, and the narrow width portion 45 of the distal arm 34 is fitted into the space 49 to form the telescopic support member 33.
A storage recess 50 is formed on the back side surface (upper surface during storage) of the mounting portion / center table portion 11 in accordance with the shape of the distal arm 34, and the rear surface of the rotating arm 13 (when stored). A storage recess 51 corresponding to the base side arm 35 is also formed on the upper surface). Reference numeral 52 denotes a projection that fits into the space 49 of the base-side arm 35 when stored, and stabilizes the stored state.

Thus, at least the distal side insertion hole 3
A pair of stepped portions 54 protruding inward so as to reduce the width are provided at the base end of each of the base 8 and the base side insertion hole 39 so as to decrease the width, and the tip side insertion hole 38 and the base side insertion hole are formed by the step 54. A lock hole 55 is formed in communication with each of 39. FIG. 14 shows an embodiment provided on a bench seat 60 in a vehicle.
It is provided at the center between the left and right seats 61, 61.
The direction of the storage box 1 is opposite to that of the above embodiment, and the rotation center of the rotation arm 13 (not shown) is the seat 61,
It is provided so as to be in front of 61. The table 2 is configured so that the rotating arm 13 is rotated to the front side to the use position.

[0012]

Next, the operation will be described. When the lid 6 is opened and the table 2 is pulled by the pull-out assisting part 30 of the mounting part of the table 2 and the center table part 11, the rotating arm 13 is rotated about the shaft member 15, and the rotating arm 13 and the mounting part and the center are rotated. The table unit 11 is in a standing state. Next, when the mounting portion / center table portion 11 is tilted rearward, the mounting portion / center table portion 11 is moved downward.
Is rotated about the shaft member 14 to be substantially horizontal, and then
When the left and right table plate parts 10 are opened outward with respect to the mounting part / center table part 11, the mounting part / center table part 1 is opened.
1 and the left and right table plate portions 10 serve as table surfaces, and the table 2 is in use.

In this case, since the table 2 is located at the height of the upper end of the mounting portion / center table portion 11 in the upright state, the table surface of the mounting portion / center table portion 11 and the left and right table plate portions 10 is located. The height of the table surface can be increased, improving usability. Conversely, since the mounting part / center table part 11 and the rotating arm 13 are stored in the storage box 1 in a single state, the height of the storage box 1 can be reduced. Therefore, when provided in a vehicle, good usability can be ensured while the mounting space is very narrow.

The base 17 of the rotating arm 13 of the table 2 is provided with a use position abutting portion 18 which projects laterally with respect to the vertical plate 16 when the rotating arm 13 is raised. Therefore, when the rotating arm 13 is raised in the use state and the lid 6 is closed, the pressing portion 19 of the lid 6 abuts on the use position contact portion 18 from above, and the rotating arm 13
Is stopped, and the use state of the table 2 is stabilized. Further, when the rotating arm 13 is raised, the storage position abutting portion 20 that protrudes laterally with respect to the flat plate portion 16 on the vertical surface is provided. The pressing portion 19 of the lid 6 comes into contact with the contact portion 20 from above, thereby preventing the turning arm 13 from turning upward.
Prevent the occurrence of vibration in the retracted state.

In this case, since the use position contact portion 18 and the storage position contact portion 20 are formed on a curved surface having an inclined surface 24 in the middle, forces from up and down, front and rear, etc. are suppressed, and The function of the stopper mechanism 21 is improved.
Further, since the base portion 17 of the rotating arm 13 is fitted on the space 25 above the front and rear walls 5 and mounted on the shaft member 15, a rotation space is secured, and the storage position contact portion is provided. Following 20, an arc surface 2 that matches the arc of the rear surface of the front and rear walls 5.
6, the appearance is also improved.

The mounting part and center table part 11
, The base of the distal arm 34 is pivotally mounted on a shaft 36 so as to be rotatable, and the rotary arm 13 is rotatably mounted on the base of the base arm 35 by a shaft 37. Each of the side arms 35 has a distal end side insertion hole 3 long in the length direction.
8 and a base side insertion hole 39 are formed, a moving shaft 40 fixed to the distal end of the distal arm 34 is inserted through the base insertion hole 39, and a fixed moving shaft 41 at the distal end of the base arm 35 is connected to the distal side insertion hole. 38, when the mounting part / center table part 11 and the rotating arm 13 are in the retracted state, the shaft 36
Since the distance between the moving shaft 40 and the moving shaft 41 is long, the moving shaft 40 and the moving shaft 41 move in the distal side insertion hole 38 and the base side insertion hole 39 in directions away from each other, and the telescopic support member 33 is extended. However, when the mounting part / center table part 11 is rotated with respect to the rotation arm 13 to be in use, the moving shaft 40 and the moving shaft 41 are respectively located in the distal-side insertion hole 38 and the base-side insertion hole 39. Are moved toward each other to shorten the distance between the shaft 36 and the shaft 37, and the telescopic support member 33 is brought into a contracted state.

Since the moving shaft 40 and the moving shaft 41 abut against the inner ends of the distal-side insertion hole 38 and the base-side insertion hole 39, respectively, the load applied to the mounting portion and the center table portion 11 is supported. In this case, the support mechanism 32 is
4 and a telescopic support member 3 which expands and contracts by a base side arm 35
3, the attachment / center table 11 is simply rotated with respect to the rotation arm 13 by simply using and storing the original table 2 to expand and contract to use the storage position and storage position. It is displaced to a position, and no operation for it is required at all, and operability is improved. Thus, the distal end side arm 34 forms a narrow portion 45 at the distal end, and the narrow portion 4
5, the base side arm 35 has a space 49 in the middle, and has left and right holding portions 47. The base side insertion hole is formed in the side surface of the left and right holding portions 47. 3
9, the narrow width portion 45 is fitted in the space portion 49, and the distal side insertion hole 38 and the insertion hole 48, and the base side insertion hole 39 and the insertion hole 46 are overlapped, respectively. The moving shaft 40 is inserted into the hole 46 and the moving shaft 41 is inserted and fixed into the insertion hole 48, respectively.

Therefore, the moving shaft 40 of the distal arm 34 and the base arm 35 is guided by the base insertion hole 39,
The moving shaft 41 is guided by the distal end side insertion hole 38 and expands and contracts, thereby preventing expansion and contraction torsion, stabilizing the load supporting posture, and more securely supporting the load. Thus, at least at the base end of each of the distal-side insertion hole 38 and the base-side insertion hole 39, a step portion 54 for reducing the width is provided, and the distal-side insertion hole 38 and the base-side insertion hole 39 are formed by the step portion 54. When the telescopic support member 33 is reduced, the movable shaft 40 and the movable shaft 41 are fitted into the lock hole 55 and cannot be removed. Therefore, the load in the upright direction of the mounting part and center table part 11 is also reliably supported.

Thus, the mounting part and the center table part 11
A storage recess 50 is formed on the rear side surface (upper surface during storage) of the front arm 34 in accordance with the shape of the distal arm 34.
3 is also formed on the rear surface (upper surface when stored) of the storage box 51 so as to match the base arm 35.
When the table 2 is stored in the table, the upper surfaces of the mounting part / center table part 11 and the rotating arm 13 become flat. In the embodiment provided on the bench seat 60 in the vehicle, the storage box 1 is provided at the center between the left and right seats 61 of the bench seat 60 in the vehicle.
The direction of rotation is that the rotation center of the rotation arm 13 is the seat 6.
The table 2 is provided so as to be at the front side of the storage box 1, 61, and the table 2 is configured so that the rotation arm 13 is rotated to the front side to the use position. Then, the turning arm 13 is turned to the front side to be erected, and then the mounting part and the center table part 11 is tilted to the front side to be used. Therefore, the table 2 can be easily provided on the bench seat 60 in the vehicle. In particular, when the central portion of the bench seat 60 cannot be used for a seat, not only can the space be effectively used, but also the use can be easily avoided.

[0020]

According to the present invention, a rectangular or substantially rectangular opening 3 is provided at least on the upper surface, and left and right and front and rear peripheral walls are provided on a predetermined floor surface, and a lid 6 for opening and closing the opening 3 is provided. A storage box 1 constructed as described above, a rotation arm 13 having a base rotatably mounted on the storage box 1, and a mounting rotatably mounted at the tip of the rotation arm 13 between a linear state and a bent state. The table plate part which pivots between the use position which pivots to open sideways with respect to the part / center table part 11 and the mounting part / center table part 11 and the storage position parallel to the mounting part / center table part 11 10, the storage box 1 and the table 2 are provided with a mounting part / center table part 11 formed by bending a table plate part 10 of the table 2 and the mounting part / center table part 1 The rotary table 13 is configured such that the table 2 is stored in the storage box 1 in a linear state, and between the mounting section / center table section 11 and the rotary arm 13 is a mounting section which is in use. Center table part 1
Since the storage type table is provided with the support mechanism 32 for supporting the table 1, the load applied to the table 2 can be supported. In the present invention, since the support mechanism 32 is a retractable table constituted by a telescopic support member 33, the support mechanism 32 is attached to the mounting part / center table part 11 and the rotating arm 13 which are displaced between a straight state and a bent state. It is easy and does not interfere with these displacements.
It switches between the active state and the non-active state in conjunction with the operation of
Operability also improves. The present invention relates to the telescopic support member 33.
Is divided into a distal arm 34 and a base arm 35,
The distal arm 34 and the base arm 35 are formed with long insertion holes 38 and 39 in the length direction, respectively. The insertion shaft 38 has a moving shaft 41 fixed to the base arm 35 and the insertion hole 39. Is a retractable table that is configured to extend and contract by inserting the fixed moving shaft 40 through the distal arm 34, so that the expansion and contraction mechanism can be configured with a simple configuration and the cost can be reduced. According to the present invention, since the end of the insertion holes 38 and 39 is provided with a stepped portion 54 that protrudes inward, the storage type table is provided.
Moving shafts 40 and 41 that have moved to the ends of insertion holes 38 and 39
Is in a locked state, and can not only reliably support the load applied to the table 2 but also support the load in the extension direction on the telescopic support member 33. The present invention relates to the distal arm 34.
Is formed in a plate shape, and the distal end side is formed in a narrow portion 45 having a distal side insertion hole 38, and the base side arm 35 is provided on both sides of a space portion 49 having a width in which the narrow width portion 45 fits. Since the storage type table is configured by providing the pair of holding portions 47 having the base side insertion holes 39, the storage of the table 2 in the storage box 1 is not affected at all, and the storage box 1 is not enlarged. According to the present invention, one of the table plate portion 10 and the mounting portion / center table portion 11 is provided with an engagement projection 12a, and the other is provided with an engagement hole 12b with which the engagement projection 12a is engaged. , Engagement projection 12a and engagement hole 12b
Are engaged with each other so as to be rotatable, and when a load is applied to each table plate portion 10, the engagement between the engagement projections 12a and the engagement holes 12b is released and the attachment portion 12 and the center table portion 1 are disengaged.
Since the storage table is configured so as to be disengaged from the table 1, when the load applied to the mounting / center table section 11 and the rotating arm 13 is strongly supported by the support mechanism 32, each table plate section 10 Comes off,
The entire table 2 is prevented from being damaged.

[Brief description of the drawings]

FIG. 1 is a perspective view of an assembled state.

FIG. 2 is a perspective view of an assembled state of a table.

FIG. 3 is a perspective view showing a state where a table portion is vertically divided into two parts.

FIG. 4 is an explanatory view of displacement to a table use state.

FIG. 5 is a longitudinal perspective view of a storage state.

FIG. 6 is a longitudinal sectional perspective view showing a state where a lid is opened.

FIG. 7 is a longitudinal sectional perspective view showing a state in which a mounting part and a center table part are rotated.

FIG. 8 is a vertical perspective view showing a state in which a table plate is rotated.

FIG. 9 is a vertical sectional perspective view of a use state of the table plate.

FIG. 10 is a vertical side view.

FIG. 11 is an operation state diagram of an insertion hole.

FIG. 12 is an operation state diagram of an insertion hole.

FIG. 13 is a side view of the end of the insertion hole.

FIG. 14 is an example view of a bench seat.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Storage box, 2 ... Table, 3 ... Opening part, 4 ... Right and left wall, 5 ... Front and rear wall, 6 ... Lid, 7 ... Mounting member, 10 ... Table plate part, 11 ... Mounting part and center table part, 12a ...
Engaging projections, 12b engaging holes, 13 rotating arms, 14 ...
Shaft member, 15: Shaft member, 16: Flat plate portion, 17: Base portion, 1
Reference numeral 8: use position contact portion, 19: holding portion, 20: storage position contact portion, 21: stopper mechanism, 25: space portion, 26: arc surface, 30: pull-out assist portion, 32: support mechanism, 33: telescopic Type support member, 34 ... distal side arm, 35 ... base side arm, 36 ... shaft, 37 ... shaft, 38 ... distal side insertion hole, 39 ...
Base side insertion hole, 40: moving shaft, 41: moving shaft, 45: narrow width portion, 46: insertion hole, 47: clamping portion, 48: insertion hole, 4
9: space, 50: storage recess, 51: storage recess, 52 ...
Convex part, 54 ... step part, 55 ... lock hole,

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[Procedure amendment]

[Submission date] August 21, 1998

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 3

FIG. 2

FIG. 4

FIG. 11

FIG.

FIG. 13

FIG. 5

FIG. 6

FIG. 8

FIG. 7

FIG. 9

FIG. 10

FIG. 14

Claims (6)

[Claims] 1. A lid 6 provided on a predetermined floor surface so as to be fixed or movable so as to open and close the opening 3 with left and right and front and rear peripheral walls rising at least on a top surface thereof and having a rectangular opening 3 at the top.
A storage box 1 having: a rotation arm 13 having a base rotatably mounted on the storage box 1; and a rotation arm 13 rotatably movable between a straight state and a bent state at the tip of the rotation arm 13. The mounting portion and the center table portion 11 and the use position where the mounting portion and the center table portion 11 are rotated to open sideways with respect to the mounting portion and the center table portion 11 and the storage position that is parallel to the mounting portion and the center table portion 11 are rotated. The storage box 1 and the table 2 are constituted by a table part 10 having a table part 10, and the table part 10 of the table 2 is bent at a mounting part / center table part 11 and the mounting part / center table part. The table 2 in which the rotary arm 13 is in a linear state is stored in the storage box 1,
The mounting part / center table part 11 and the rotating arm 1
3 is a storage type table provided with a support mechanism 32 for supporting the mounting part / center table part 11 in use. 2. The retractable table according to claim 1, wherein said support mechanism comprises a telescopic support member. 3. The telescopic support member 33 according to claim 2, wherein the telescopic support member 33 is divided into a distal arm 34 and a base arm 35, and the distal arm 34 and the base arm 35 each have a long insertion hole in the length direction. 38, 39 are formed, and the insertion holes 38 are formed.
A moving shaft 41 fixed to the base arm 35 and a moving shaft 4 fixed to the distal arm 34 in the insertion hole 39.
A retractable table configured to extend and retract by inserting 0. 4. The device according to claim 3, wherein
9 is a retractable table provided with a stepped portion 54 protruding inward at the end. 5. The distal arm 34 according to claim 3, wherein the distal arm 34 is formed in a plate shape, and the distal arm is formed in a narrow portion 45 having a distal insertion hole 38. Are a pair of holding portions 47 having the base side insertion holes 39 on both sides of a space portion 49 having a width in which the narrow portion 45 is fitted.
A storage type table configured with. 6. The method according to claim 1, wherein said first and second means are different from each other.
Alternatively, according to claim 4 or claim 5, the engaging projection 12a is engaged with one of the table plate portions 10 or the mounting portion and center table portion 11, and the engaging projection 12a is engaged with the other. The engaging projections 1
2a and the engaging hole 12b are engaged with each other so as to be rotatably mounted, and when a load is applied to each table plate portion 10, the engaging projection 12a and the engaging hole 12b are disengaged from each other, and the mounting portion and the center are removed. A storage type table configured to be separated from the table unit 11.