JP2019055166A - table - Google Patents

Abstract

To provide a table which can be quickly used as a stretcher even after a long time passes, is compact, and allows more tables to be stored in a narrow storage space.SOLUTION: A table has legs in four corners of a top plate (1), can be changed to three postures, a table posture, a storage posture, and a stretcher posture, and is provided with a posture regulation structure regulating the respective three postures in the way that they can be cancelled. In the structure, components which are removed when regulation is cancelled and fitted when regulated become common to the three postures. The legs are integrally joined to the top plate or its reinforcement material via hinges. A socket having an insertion hole which leg base parts can be inserted in/removed from in the respective three postures is fixed to the top plate. The posture regulation structure is composed of a restriction beam (7) joining two or more parts where a gap changes as the three postures change in the respective postures among the legs or the components integrated with the same, and a joint tool common to the three postures maintaining the joint state in the way that it can be cancelled.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a table having legs at least at four corners of a top plate.

Conventionally, it has been recommended to equip public institutions with a stretcher that is useful in an emergency such as an earthquake disaster, but there are many stretchers that are left unused in warehouses for many years. There was a concern that it would take time just to check for damage, and it would not be useful in an emergency.
On the other hand, as in Patent Document 1, it is necessary to equip the table with the strings necessary for use as a stretcher in advance, or tilt the bench legs outward as shown in Patent Document 2. It has been proposed to use a handgrip on the stretcher.
In the former case, it is difficult to check the alteration, loss, etc., of attaching a string that is completely unnecessary when used as a table, and it has not solved the above-mentioned conventional problems.
Further, the bench shown in Patent Document 2 has a drawback that it cannot be stored compactly when not used as a bench or a stretcher.

JP-A-2015-66204 Design Registration No. 1337603

  In view of such a problem, the present invention has an object of not only being able to be used quickly as a stretcher even after many years, but also to be compact so that more tables can be stored in a narrow storage space.

The table of the first aspect of the present invention is a table having legs at the four corners of the top plate, the table posture with the legs standing up, the storage posture folded inward and stored under the top plate, and toward the outside of the top plate. The posture of the legs with respect to the top plate can be changed to three postures with the stretcher posture that is folded and folded to the outside of the top plate, and the posture of each of the three postures can be released A posture regulating structure for regulating is provided, and the structure is configured such that the parts to be removed at the time of releasing the regulation and to be attached at the time of regulation are common to the three postures.
According to a second aspect of the present invention, in the table of the first aspect, the legs are integrally connected to the top plate or a reinforcing material thereof via a trillion number so as to be changeable to the three postures.
The invention 3 is characterized in that, in the table of the invention 1, a socket having an insertion port into which a base portion of the leg in each of the three postures can be inserted and removed is fixed to the top plate.
The present invention 4 is the table according to any one of the first to third aspects, wherein the posture restricting structure includes two or more places where the distance between the legs or the parts integrated with the leg varies with a change in three postures. It is characterized by comprising a restriction beam connected in each posture and a joint device common to the three postures that maintain the connected state in a releasable manner.

By adopting the invention 1, it is possible to make the stretcher posture by using the parts used for daily use of the table and the storage posture minimized by folding the legs compactly. It is now easy to use it in a stretcher position even after a long period of time.
In addition, according to the invention 2, the leg and the top plate are always integrated while the three postures can be changed, and the main parts can be prevented from being lost.
In the invention 3, the top plate and the leg are separated from each other. However, since the restriction structure to be fixed in the three positions is common to the three positions, the small parts that become the restriction structure (specifically, bolts, etc.) Problems due to loss are completely eliminated, and deformation from any of the three positions can be performed reliably over a long period of time.
By constructing the posture regulation structure as in the invention 4, by using at least one connecting beam and two connecting tools (specifically bolts), the posture is changed and maintained. In addition to being easy to change the posture, there is an advantage that there is no need to store main parts.

The partially notched enlarged front view which shows the table attitude | position of Example 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a partially notched drawing which shows the table | surface attitude | position of Example 1 of this invention, [A] is a bottom view, [B] is a right view. The partially notched front view which shows the stretcher attitude | position of Example 1 of this invention. The partially notched bottom view which shows the stretcher attitude | position of Example 1 of this invention. The partial notch right view which shows the stretcher attitude | position of Example 1 of this invention. FIG. 3 is a partially cutaway front view showing the storage posture of the first embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a partially notched drawing which shows the accommodation attitude | position of Example 1 of this invention, [A] is a bottom view, [B] is a right view. The partially notched front view which shows the principal part of Example 2 of this invention. It is a partially notched enlarged drawing which shows the socket which is the principal part of Example 3 of this invention, [A] is a front view, [B] is a bottom view, [C] is a right view. The expanded transverse bottom view which shows the principal part of the leg of Example 4 of this invention.

  In the following embodiment, the material of the main part is described as wood, but there is no difficulty in using a light metal such as duralumin, a thin steel plate, or a plastic material. The metal parts shown in the examples are described on the assumption that they are made of steel, but plastic parts or ceramics may be used if the strength is sufficient.

This embodiment is shown in FIGS. 1 to 7, and will be described below with reference to these drawings.
The strip-shaped (top 180 cm, width 60 cm) wooden top plate (1) has two reinforcing beams (2 a) and (2 b) (hereinafter collectively referred to as reinforcing beams) along the longitudinal direction on its lower surface. (Denoted as (2)) is fixed.
Legs (5a), (5b), (5c), and (5d) are connected to both ends of the reinforcing beam through two-fold trillions (3a), (3b), (3c), and (3d). 5)) is connected integrally.
The reinforcing beam (2) and the leg (5) are configured by using square members having the same size, and the lower half of the leg (5) is formed in a columnar shape. H) does not feel uncomfortable.
The legs (5a) and (5b) on one end in the longitudinal direction of the top plate (1) are connected by a connecting beam (6a), and (5c) and (5d) on the other end are connected by a connecting beam (6b). Are integrally connected to each other.
The connecting beam (6) (hereinafter, the connecting beams (6a) and (6b) are collectively referred to as (6)) is made of the same square material as the reinforcing beam (2). At the center in the longitudinal direction, in the table posture (FIG. 1, FIG. 2, posture number ii), a female screw (S2) that opens to the lower side, a female screw (S1) that opens to the left and right in FIG. A female screw (S3) is provided in each.

These female screws (S1) to (S3) are a part of a regulation structure that regulates three postures.
The restriction beam (7) made of the same square material as that of the reinforcing beam (2) has recesses (8a) (8b) (8c) (8d) (8e) ( 8f) is formed. Each recess (8) (hereinafter referred to as (8) when the recesses (8a), (8b), (8c), (8d), (8e), and (8f) are collectively referred to as (8)) has one through Holes (9a) (9b) (9c) (9d) (9e) (9f) are provided.
In this through hole (9) (hereinafter, the through holes (9a), (9b), (9c), (9d), (9e), and (9f) are collectively referred to as (9)), the connecting beam (6) is recessed. In the state of being fitted in (8), the bolts (B2) and (B5) inserted from below are passed through and inserted into the female screws (S1), (S2), and (S3) facing downward according to three postures. And screw it.

In this way, the connecting beam (6) is fitted into the recesses (8a) and (8f) of the restriction beam (7), and the tightening bolts (B2) (B5) are screwed into the female screw (S3). ) Was able to be in a stretcher posture with the lower half (H) protruding outward. (See FIGS. 3, 4 and 5)
In addition, the connecting beam (6) is fitted into the recesses (8b) and (8e) of the restriction beam (7), and the fastening bolts (B2) (B5) are screwed into the female screw (S2), thereby raising the leg (5). It was possible to have a table posture. (See Figs. 1 and 2)
Then, the connecting beam (6) is fitted into the recesses (8c) and (8d) of the restriction beam (7), and the tightening bolts (B2) (B5) are screwed into the female screw (S1), so that the leg (5) is It was able to be set as the accommodation attitude | position accommodated in the downward direction of the top plate (1) by folding in parallel with the plate (1). (See Figs. 6 and 7)
A female screw hole (S4) with the outside as an insertion port is provided in the vicinity of the center of the upper half of the leg (5).
Reinforcing plates (4a), (4b), (4c), and (4d) are respectively fixed to the top plate at locations near the outer periphery of the top plate (1) and outside the legs (5).
In the reinforcing plate (4) (hereinafter, the reinforcing plates (4a), (4b), (4c), and (4d) are collectively referred to as (4)), the female screw holes (S4 ) Through holes (C1) (C2) (C3) (C4) are provided.

The fastening bolts (B1), (B3), (B4), and (B6) that can be screwed into the female screw (S4) are screwed into the female screw hole (S4) through these through holes, so that the standing strength of the leg (5) in the table posture is increased. The leg (5) does not wobble due to external force during use.
As described above, the storage posture is achieved by the restriction structure including the restriction beam (7), the recess (8), the connection beam (6), the female screw (S1) (S2) (S3), and the tightening bolt (B2) (B5). The table posture and the stretcher posture have been changed so that they can function not only as a table but also as a stretcher in an emergency. Further, when not used for any of the above, it can be stored in a compact posture folded under the leg (5) top plate (1).
The lower end of the reinforcing plate (4) can serve as an auxiliary leg when placed in a stretcher posture. When the stretcher is placed on the floor surface, the top plate is supported so that it does not fall down accidentally. I can do it.

The depth of the concave portion (8) of the restriction beam (7) is not necessarily half of the thickness of the connecting beam (6), and can be appropriately set based on the strength. In some cases, the relative movement between the restriction beam (7) and the connection beam (6) is restricted by allowing the bolts (B2) and (B5) to pass through only the through hole (9) without providing the recess (8). It is also possible to make it possible.
In this case, it is preferable to use a bar material in which a channel material made of duralumin is used as the regulating beam (7).

In the first embodiment, the reinforcing plate (4) has a single through hole (Cii) (hereinafter referred to as through holes (C1), (C2), and (C3)) because it is most likely to be damaged by an external force when in the table posture. (C4) is collectively referred to as (Cii).)
However, when it was assumed that an emergency occurred after long-term use and storage, we considered that the influence of external forces on the stretcher posture and the storage posture should be taken into consideration. Therefore, as shown in FIG. 8, the reinforcing plate (4) was extended to a position facing the female screw hole (S4) in the stretched position and the storage position, and a through hole (Ci) (Ciii) was added to the position.
Thereby, not only a regulation structure but a posture will be maintained by direct connection with a reinforcement board (4) and a leg (5).
Further, in any of the three positions, the bolts (B1) to (B6) are used, so that a situation in which some bolts are not required due to the position change does not occur and is stored. Since it is no longer necessary, there is no need to change to another position due to the loss of the storage bolt, and there is no need for management.

In this embodiment, the regulation structure is the same as that of Embodiment 1, but the attachment of the legs (5) is not a trillion (3) but a plug-in type. (See Figure 9)
Specifically, the steel sockets (10a) (10b) (10c) (10d) having four insertion holes (111) (112) (113) (114) are connected to the reinforcing beams (2a) (2b). It is fixed at both end positions.
In addition, as for the said socket, what is arrange | positioned right and left in the side view and front view becomes a right-and-left contrast shape. Therefore, the sockets (10a) and (10c) and the sockets (10b) and (10d) have the same shape, but the sockets (10a) and (10c) and the sockets (10a) and (10c) have a left-right contrasting shape. is there.
Each socket (10) (hereinafter, the sockets (10a), (10b), (10c), and (10d) are collectively referred to as (10)) is provided on the flanges (101) and (102) protruding at the upper end. It is fixed at a predetermined position on the back surface of the top plate (1) with a countersunk screw through the through hole.
The end of the reinforcing beam (2) is fixed with a flat head screw in a state of being inserted into the insertion port (114). In this way, the socket (10) is integrated with the top plate (1).
Bolt through holes (121), (122), (123) are provided at positions where the female screws (S4) face each other when the legs (5) are inserted into the insertion ports (111), (112), (113). The bolt (B1) (B3) (B4) (B6) is screwed into the female screw (S4) to prevent the leg (5) from coming out of the socket (10).
Since the connection between the leg (5) and the socket (10) is maintained by the restriction structure described in detail in the first embodiment, the operation of the bolts (B1) (B3) (B4) (B6) is as follows. It is auxiliary.
The positions of the bolts (B1), (B3), (B4), and (B6) in each posture are indicated by (Bi), (Bii), and (Biii) in the figure, (Bi) is in the retracted posture, and (Bii) is the table. In the posture, (Biii) indicates the position in the stretcher posture.
In the figure, (5i), (5ii), and (5iii) indicate the position and posture of the leg (5) in each posture, (5i) is in the retracted posture, (5ii) is in the table posture, and (5iii) ) Indicates the position in the stretcher position.
Moreover, since the height of the socket (10) corresponds to the height of the two regulating beams (7) stacked, when it is in the stretcher position, it functions as an auxiliary leg and stabilizes the floor surface. You can put a stretcher on it.

In the present embodiment, an example is shown in which a bolt is not required to connect the leg (5) and the reinforcing plate (4) or the socket (10). (See Figure 10)
Instead of the female screw, the following pin structure is accommodated in the hole (P2) that accommodated the female screw (S4) formed on the leg (5).
A coil spring (P3) is accommodated in the hole (P2), and a cylindrical holder (P4) holding a pin (P) movable left and right in the figure, the spring ( The hole (P2) is closed so as to hold P3). The cylindrical holder (P4) has screwed fins on the outer periphery, and is prevented from coming out by being screwed into the legs.
In this way, the pin (P) is always in a protruding state due to the elasticity of the spring (P3).
The leg (5) is integrated with the reinforcing plate (4) or the socket (10) by fitting the pin (P) into a bolt through hole formed in the auxiliary plate or the socket.
To release this state, the leg (5) is moved by pushing the tip of the pin (P) with a screwdriver or the like while the leg restriction by the restriction structure is released.
By doing so, there is no need to remove parts other than the two bolts (B2) and (B5) necessary for the restriction structure, and the posture can be changed very quickly.
In addition, since the parts separated from the top plate (1) are used in other postures when the posture is changed, the parts are not excessive or deficient, and storage management becomes extremely easy.

(101) (102) Flange (111) (112) (113) (114) Socket (121) (122) (123) Bolt through hole (1) Top plate (10) (10a) (10b) (10c) ) (10d) Socket (2) (2a) (2b) Reinforcement beam (3) (3a) (3b) (3c) (3d) Trillion (4) (4a) (4b) (4c) (4d) Reinforcement plate (5) (5a) (5b) (5c) (5d) Leg (5i) Leg position when retracted (5ii) Leg position when table is positioned (5iii) Position when stretched (6) (6a) (6b) Connecting beam (7) Regulating beam (8) (8a) (8b) (8c) (8d) (8e) (8f) Recess (9) (9a) (9b) (9c) (9d) (9e) (9f) Through hole (B1) (B2) (B3) (B4) (B5) (B6) Tightening bolt (Bi Bolt position (Bii) in the stowing position Bolt position (Biii) in the table position Bolt position (C1) (C2) (C3) (C4) Through position (Ci) Through hole (Ci) Bolt through hole (Cii) ) Bolt through hole for table posture (Ciii) Bolt through hole for stretcher posture (H) Lower half of leg (grip)
(S1) (S2) (S3) (S4) Female thread (P) Pin (P2) Hole (P3) Coil spring (P4) Tubular holder

Claims (4)

  A table having legs at the four corners of the top plate, the table posture with the legs standing up, a storage posture folded inward and stored under the top plate, and folded toward the outside of the top plate, the top plate The posture of the leg to the top plate can be changed to the three postures of the stretcher posture that can be gripped on the outside of the stretcher posture, and the posture restriction structure that restricts the posture of each of the three postures is provided. In the structure, the table is configured such that the parts to be removed at the time of release of the restriction and to be attached at the time of restriction are common to the three postures.   2. The table according to claim 1, wherein the legs are integrally connected to the top plate or a reinforcing material thereof via a trillion number so as to be changeable to the three postures. The table according to claim 1, wherein a socket having an insertion port through which a base portion of a leg in each of the three postures can be inserted and removed is fixed to the top plate. The table according to any one of claims 1 to 3, wherein the posture regulating structure includes two or more locations where the distance between each of the legs or parts integrated with the leg varies according to a change in three postures. A table comprising a restriction beam that is connected in a posture and a connector common to three postures that maintain the connected state in a releasable manner.