JPS5824126B2 - folding table - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Conventionally, as tables whose decks can be folded and stored, extension tables and telescoping tables as shown in FIGS. 1 and 2 have been known.

The above extension table is a cabinet whose top plate can be used as a table surface.
A single deck or a plurality of decks are housed or can be pulled out and expanded, and when the decks are pulled out and expanded, a wide table surface that is flush with the top plate is formed.

On the other hand, as shown in the figure, from the first use state in which the two top plates a and a', which form the table surface by themselves, are butt against each other and reduced, the rain top plates a and a' are moved in the direction of the arrow shown in the figure. After extending it, the decks b and b', which are folded and stored inside the cabinet, are pulled out,
The table is constructed so that it can be laid out on the same plane between the top plates b and b' as a second use state with a wide table surface.

In this way, the auxiliary decks b and b' for the top plates a and a' forming the main table surface are folded and stored on the back side of the top plates a and a', that is, inside the cabinet, in the above-mentioned first use state. In such cases, there is a conventional folding table as shown in FIG.

It consists of two hinged parts that can be folded together and unfolded.
One of the decks d and d' is placed in contact with the guide f of the cabinet e, and the other is placed on the shaft g fixed to the cabinet e and folded into the cabinet e as shown in the figure. When storing it and unfolding it for use, pull up the tip of the upper deck d' in the folded state and pull it out from the opening e' of the cabinet e. As ' rotates clockwise in the figure with the guide f as the center of rotation, the lower deck d extends forward on the axis g, that is, to the left in the figure, in an inclined state. When the deck d' protrudes outward from the rear opening e' and is further rotated to overlap the upper edge of the curtain plate e', the other deck d is placed on the upper edge of the curtain plate e', and the broken line in the figure As shown in Figure 2, both of them are developed on the same plane to form a table surface.

However, according to the above-mentioned conventional folding table, the deck d is configured to slide out on the axis g provided at a fixed position, so the deck d can be stored in the cabinet e or pulled out and expanded. , it is essential to have a space between the end of the deck d and the curtain plate e" of a dimension equivalent to the length of the deck protrusion, so the spacing i between the curtain plates e" and e" of the cabinet e is small. is required to be at least as long as the length of the deck d plus the length jKh, and therefore the cabinet (e) becomes large.

In other words, since only a deck of a certain size can be accommodated in a cabinet of a certain size, it is not possible to make the table surface larger than a certain area with respect to the cabinet.

Therefore, as a result of studies in view of the above-mentioned conventional circumstances, the present invention has been developed by providing a structure in which a hinged deck that can be folded and unfolded is connected to a cabinet with an appropriate link, thereby reducing the storage space of the deck relative to the cabinet. Furthermore, the deck can be reliably unfolded even when the height of the curtain plate varies.

The present invention will be described in detail below based on illustrated embodiments.

4, 1, and 8 show an extendable folding table in which the cabinet 1 is formed to be extendable in the front and rear directions in the drawings, and the deck described below can be folded and stored or pulled out and unfolded. The case is shown below.

At least two decks 2 for the cabinet 1
, 2' are connected by a hinge 3 so that they can be folded into a double layer and unfolded into a flat shape. Deck 2 that is stored horizontally and serves as the upper part in the folded state
The central part of the hinge 3 is pivotally connected to the cabinet 1 by a shaft pin 4, and by rotating clockwise around the shaft pin 4, the curtain is pulled out from the opening 1a of the cabinet 1. It is provided so that it can be laid out in a horizontal state on the plate 1b, and can be stored in the cabinet 1 in a substantially horizontal state by rotating counterclockwise from the unfolded state.

On the other hand, the lower deck 2 is rotatably connected at its center to the bracket 5 of the cabinet 1 by the link 6, so that the deck 2' rotates between one end of the link 6 and the bracket 5 in synchronization with the deck 20 rotations. It rotates around the pivot point 0 with respect to.

In this case, the deck 2 is pivotally connected to the other end of the link 6 through a bracket 11 hanging from the back surface thereof, and this movable pivot point P is connected to the pivot point O and both decks 2, 2. It is provided in advance so that it is on the straight line m connecting the hinge points Q of the hinges of 2. z can be held in the stored state shown by the solid line in the figure, and is prevented from rotating downward.

Furthermore, according to the embodiment shown in FIG. 4, the link 6 has a constant length that does not expand or contract in the length direction, while in the embodiments shown in FIGS. A stretchable material is used.

That is, in the embodiment shown in FIG. 4, although the link 6 does not extend or contract, the pivot point 0 is provided so as to be movable in the horizontal direction in the figure.

The means for moving the pivot point 0 is shown in FIGS. 5 and 6.
As shown in the figures, the pin 1 can be formed by being movably fitted into the elongated hole 8. In Fig. 5, the pin 1 is protruded from the bracket 5, In FIG. 6, a pin 1 is provided protruding from the link 6, and a long hole 8 is provided in the bracket 5 in a horizontal direction.

Furthermore, in the embodiments shown in FIGS. 1 and 8, in order to give elasticity to the link 6 itself, a link member 6a is provided with a shaft hole 9 opened at one end in the longitudinal direction, and a link member 6a that slides into the shaft hole 9 is provided. In contrast to the embodiment shown in FIG. 8, the link member 6a' and the link member 6b' are further connected by a spring 10. There is.

Although a coil spring may be used as the spring 10, if a spiral spring made of a strip steel plate as shown in FIG. 8 is used, it can be accommodated in a small volume and supports the decks 2, 2'. It is convenient because it can have sufficient elasticity to do this.

In the above configuration, the decks 2 and 2' are shown in Figure 4 and Figure 1.
It is folded and stored in the cabinet 1 as shown by the solid line in FIG.

In the above-mentioned storage state, the cabinet 1 is scaled back and forth in the figure, and the top plates (not shown) are butted against each other, so that the deck 2. z is stored and held.

Next, deck 2. When unfolding the cabinet 1, extend the cabinet 1, open the space between the top plates, and then pull up the end of the deck 2 from the opening 1a in the direction of the arrow.
It rotates in the same direction around the center and protrudes outward.

The other deck 2' hinged by this deck 20 rotations
is pushed to the left in the figure, but the pushing force acts on the link 6, so the link 6 rotates counterclockwise around the pivot point 0 and moves the deck 2' to the position A. Push it up to the position of the mouth indicated by the two-dot broken line in the figure.

When the deck 2 is further rotated, the other deck 2' is further pushed up from the opening position and moves to the left to reach the position C, and from this position C it moves to the left while descending to the second position. When the deck 2 is placed on the curtain plate 1b, the other deck 2 also moves from the second position to the E position and is horizontally deployed on the curtain plate 1b.

In other words, when the decks 2, 2' are pulled up from the stored position A, a force acts in the length direction of the link 6, so that the link 6 moves its pivot point O in FIG. In addition, in FIGS. 1 and 8, it is reduced by r, and in that state, it rotates and the deck 2. Z moves to mouth, ha, and two.

Next, in order to sink from position 2 to position E, it is necessary to move slightly to the right in the figure, so at this time, in Figure 4, pivot point 0 moves by r and when retracted. In the case shown in Figures 1 and 8, the link 6 is in an extended state from the mouth position to the position C and 2, and from the position 2 to the expanded state E. Time link 6
is reduced to provide relief for the sinking of the deck 2', and as a result, the deck 2 is held horizontally.

Father, when folding and storing from the above-mentioned unfolded state, deck 2,
2' in the opposite direction to that described above, the link 6 and the deck 2. z is folded and stored in the state shown by the solid line in the figure by a reverse operation to that described above.

In the embodiment shown in FIG. 1, a bracket 1 is attached to the cabinet 1.
1 is provided, but of course, the guide 12 may be omitted without hindering the movement of the movable pivot point P.

Furthermore, in FIGS. 4 and 1, L indicates the space within the cabinet 1, and e indicates the width of the decks 2, 2'.

As explained above, according to the folding table according to the present invention, the deck 2. z are mutually folded and hinged so as to be freely unfoldable, and in the folded and stored state, the upper deck 2 is pivotally connected to the cabinet 1, while the lower deck 2' is pivotally connected to the cabinet 1 by a link 6. The link 6 above is the deck 2, 2
Since the pivot point P of the movement of the deck 2 and the link 6 accompanying the folding and unfolding operations of the deck 2. Since the deck 2. In the process where z appears and disappears from the opening 1a of the cabinet 1, there is only a vertical displacement, and the deck 2゜2' does not move in the width direction, so the width e of the cabinet 2゜2' is The spacing and the storage space under the top plate can be narrowed, and the cabinet 1 can be made smaller compared to the size of the decks 2 and 2'.

Father, the above-mentioned link 6 serves as a sinking relief when the decks 2, 2' are folded and unfolded, so even if there is variation in the height of the curtain plate 1b, the above-mentioned relief allows the deck 2.2' to be expanded. It can be reliably made into a flat shape, and the folding and storing operation can be performed smoothly.

Furthermore, the link 6 is a pivot point O with the cabinet 1.
Since it is only necessary to pivotally attach the body so that it can move laterally or to form it so that it can be expanded and contracted, it can be manufactured easily and at low cost.

[Brief explanation of the drawing]

Figures 1 and 2 are a plan view of the telescoping folding table in its contracted state and an extended state, respectively; Figure 3 is a vertical side view of a conventional folding table; and Figure 4 is a side view of a conventional folding table. FIGS. 5 and 6 are longitudinal side views showing the folding table according to the invention; FIGS. 5 and 6 are front views showing modified examples of the pivot joints between the cabinet and the link in the same table; and FIG. FIG. 8 is a longitudinal side view showing still another embodiment of the same table, and FIG. 9 is a front view showing an example of a spring used for a link of the table. 1...cabinet, 1a...cabinet opening, 2, 2'...deck, 6...
...Link, 6a. 6 b t 6 a' 25 b'... Link member, 7... Pin, 8... Elongated hole, 10
... Spring, 0 ... Pivot point, P ...
...Movement pivot point, Q... Hinge point.

Claims (1)

[Scope of Claims] 1. A folding table in which two hinged decks are stored in a folded state in a cabinet and can be pulled out from the opening and unfolded into a flat shape, When the deck is folded, the upper deck rotates around the pivot point with the cabinet. It is pivoted so that it can be folded and unfolded, and the lower deck and cabinet are rotatably connected by a link, and the movable pivot point is the pivot point between the link and the cabinet, and the hinge between both decks. A folding table characterized in that the link is positioned above a line connecting points and is formed so as to be able to absorb changes in movement of the movable pivot point due to folding and unfolding of the deck. 2. The folding table according to claim 1, wherein the link is movably formed by attaching one end to the cabinet by engaging with a long hole and a pin. 3. The folding table according to claim 1, wherein the link is formed by inserting two link members into each other so as to be able to expand and contract in the axial direction. 4. The folding table according to claim 1, wherein the link is formed by connecting two link members with each other by a spring that can be freely expanded and contracted in the axial direction.