JPS5921604B2 - folding table - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Conventionally, as a table whose deck can be folded and stored, an extension table and a retractable table as shown in FIGS. 1 and 2 are 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 so that they can be housed or pulled out and expanded, and when these decks are pulled out and expanded, a wide table surface that is on the same plane as the top plate is formed.

On the other hand, as shown in the figure, in the telescopic table, from the first use state in which the two top plates ata', which themselves form the table surface, are butt against each other and reduced, the two top plates a*a'
After extending in the direction of the arrow shown in the figure, the deck is folded and stored in the cabinet.

b' is pulled out to the outside, and between the top plates b and b', the table is laid out on the same plane as the top plate, so that a wide table surface can be used in a second use state.

In this way, the top plate a forms the main table surface.

a deck forming an auxiliary table surface for a', b
In the above-mentioned first state of use, ' is folded and stored on the back side of the top plate al a', that is, inside the cabinet. A conventional folding table for such a case is as shown in FIG. 3.

It consists of two hinged parts that can be folded together and unfolded.
Of the two decks b and b', one is pivotally mounted e to the cabinet d, and the other is placed on the axis f provided in the cabinet d, folded as shown in the figure, and stored in the cabinet d. When unfolding this for use, pull up the tip of the upper deck table in the folded state and pull it out from the opening d', and at this time, the upper deck table rotates the pivot point e. As the center rotates clockwise in the figure, the lower deck b' moves forward on the axis f.
That is, in the figure, it slides out in an inclined state to the left, then protrudes outward from the opening d', and when the deck plate is further rotated and overlapped with the upper edge of the curtain plate d', the other deck plate b' is curtain board d
``They are placed on the upper edge and are arranged so that they are mutually developed on the same plane as shown by the broken line in the figure to form a table surface.

However, according to the above-mentioned conventional example, since the deck b' is configured to slide out on the axis f provided at a fixed position, in order for the deck b' to be stored or drawn out with respect to the cabinet d, at least Between the end of the deck b' and the curtain plate d',
Since it is essential to have an interval g corresponding to the length of the deck protrusion, the length h between the curtain plates d'' and d'' of the cabinet d is at least the width i K g of the deck s and b' added. Therefore, the cabinet d inevitably becomes large.

In other words, since only a small deck can be accommodated in a cabinet of a certain size, it is difficult to make the table surface larger than a certain size relative to the cabinet.

Therefore, as a result of studies in view of the above-mentioned conventional circumstances, the present invention has been developed by:
By providing a configuration in which the deck, which is hinged so that it can be folded and unfolded, is supported by an appropriate drive mechanism against the cabinet, the storage space of the deck can be made smaller.
Moreover, it is intended to make it easy to draw out the deck and store and hold the deck so that it can operate smoothly and reliably.

Below, the present invention will be described in detail based on an embodiment showing a telescoping folding table. In FIGS. 4 and 5, the cabinet 1 is formed to be expandable and contractible in the front and rear directions in the figure, and the cabinet 1 is As a result, the top plates (not shown) are brought into contact with each other, and when they are extended, the top plates are separated from each other to form an opening 1a, which enables the deck to be opened and folded for storage as described later.

That is, the decks 2 and 2' are connected by a hinge 3 so that the two decks can be unfolded from the double folded state to the same flat surface, and when folded as shown by the solid line in the figure, the upper deck The hinge 3 side of the deck 2 is pivoted 4 near the opening edge of the cabinet 1, and with the pivot point as the center of rotation, from the folding storage position A shown by the solid line in the figure to the unfolded position opening shown by the broken line, or in the opposite direction, and the cabinet 1 is provided so that the lower deck 2' near the end opposite to the hinge 3 is elastically rotatable in the vertical direction. 1 by being supported by the drive mechanism 5,
It is possible to store and hold the decks 2, 2' in the folded state, and by slightly lifting the decks 2, 2' from the stored state, the drive mechanism 5 moves the deck 2' into the opening 1a of the cabinet 1. It is constructed so that it can be pushed upward elastically from the outside.

According to the embodiment shown in FIG. 4, the drive mechanism 5 is as follows:
The base end is pivoted 6 to the cabinet 1 so as to be freely rotatable in the vertical direction, and the support of the deck 2' is provided with a pin 7 at the movable end. It is formed of a single spring 5c that is latched and elastically urges the arm 5a upward as indicated by the arrow in the figure, and
When the deck 2゜2' is folded and stored, the pins 7 of the receivers that support it are positioned so that they can come into contact with the nails 8 that are protruding from the back surface of the lower deck 2' and have an approximately reverse chevron shape when viewed from the front. Furthermore, in the stored state shown by the solid line in the figure, the arm 5a is rotated downward to a position slightly beyond the dead center of the single spring 5c, and in this position the above-mentioned receiver is connected to the pin 7. The pawls 8 are designed to lock relative to each other so that the decks 2, 2' can be housed and held.

According to the embodiment shown in FIG. 5, as clearly shown in FIG.
A first arm 5a, which has an abbreviated front shape and whose bent portion is rotatably pivoted to the cabinet 1, and has a pin 7 protruding from one movable end thereof; a second arm 5b having one end pivotally attached 9 to the other movable end of the arm 5a and a pressing pin 10 provided at the other end to detachably engage with the deck 2';
and a spring 5c whose end portions are supported and stretched by the first arm 5a and the cabinet 1, respectively, and elastically urges the first arm 5a upward as indicated by the arrow in the figure. When the decks 2, 2' are folded and stored, this is held by the pin 7'.
At IJ9, the first arm 5a rotates downward against the tension of the spring 5c, and as a result, the second arm 5b
is moved rightward in the drawing so that the pressing pin 10 engages with the end of the deck 2' to hold the decks 2, 2' in the stored state.

In the above configuration, when the decks 2 and 2' are folded and stored in the cabinet 1, the arm 5a will move up to the vicinity of the opening 1a of the cabinet 1 according to FIG.
Also, the sharpener according to the embodiment of FIGS. 5 and 6 is the first arm 5a.
are in the raised position by the springs 5c, so that the back surface of the deck 2' abuts against the pin 7 of this receiver.

When the decks 2, 2' are further pushed down, the arm 5a rotates downward about the pivot point 6 against the tension of the spring 5c, but in the embodiment shown in FIG. When the bridge is rotated to a position beyond its dead center, the bridge is rotated until the pin 7 and the claw 8 are pushed out, so that the deck 2.2' is housed and held at the position shown by the solid line in the figure.

On the other hand, in the embodiments shown in FIGS. 5 and 6, when the first arm 5a rotates downward to a certain extent, the other movable end rotates counterclockwise in the drawings, so that the second arm 10 moves to the right. When the first arm 5a moves and the suppressing pin 10 locks with the end of the deck 2', the first arm 5a crosses the dead center of the spring 5c, so the decks 2, 2' are stored in the folded state at this position. The decks 2, 2' will not descend any further.

Next, when pulling out and unfolding the decks 2, 2', slightly pull up the ends of the decks 2, 2' from the above-mentioned stowed state.
In the embodiment of FIG. 4, the pawl 8 or the receiver of the deck 2' presses against the pin 7, so that the arm 5a is pivoted upwards, so that when the dead center of the spring 5c is exceeded, the arm 5a
Since the decks 2, 2' are rapidly rotated upward by this, the decks 2, 2' are pushed up to the outside of the opening 1a.

On the other hand, according to the embodiments shown in FIGS. 5 and 6, the deck 2.2'
6, the second arm 5b, which is in the position shown by the solid line in FIG. 6, is pushed by the deck 2' with its suppressing pin 10 pushed to the position shown by the two-dot broken line in the figure.

Therefore, since the first arm 5a is slightly rotated clockwise and passes the dead center of the spring 5c, the deck 2.2' is next moved by the first arm 5a regardless of the lifting operation of the deck 2, 2'. is pushed out to the outside of the opening 1a by the upward rotation by the spring 5c, and when the deck 2 is then rotated in the deployment direction, the other deck 2' also moves in the deployment direction and is pushed to the outside of the opening 1a. It can be placed and unfolded on the same plane.

In addition, in Figures 4 and 5, t is the width of the deck 2.2', L
is the distance between curtain plates ib and ib in cabinet 1, K
1 and 2 respectively indicate the height from the top plate to the lowest position of the tip of the arm 5a in the first drive mechanism 5.

As explained above, according to the folding table according to the present invention, when the decks 2, 2' are folded and pushed into the cabinet 1 through the opening 1a, the drive mechanism 5 is lowered to fold the decks 2, 2'. It can be stored and maintained in the folded state, and if the decks 2 and 2' are raised from the folded state, 1. Due to the upward movement of the drive mechanism 5, the decks 2, 2
' can be elastically pushed up in the unfolding direction and pushed up from the opening 1a, which not only makes it possible to fold and store the decks 2, 2' and draw and unfold them easily and reliably. , the drive mechanism 5 is the cabinet 1
Since the installation is possible near the opening 1a of the opening 1a, the decks 2, 2' can be stored within the range of the folded thickness of both the decks 2, 2' from the upper end of the curtain plate 1b of the opening 1a. ' is not something that slides out this width in the direction, but is stored and pulled out by moving up and down, so it can be operated sufficiently if there is a slight gap in the width direction. 2' storage space can be significantly reduced compared to the conventional example.

Further, the drive mechanism 5 includes at least one arm 5a and a spring 5.
Since it can be formed from C, it has a simple structure and can be manufactured at low cost, and there are very few failure-causing elements, so it can withstand long-term use.

[Brief explanation of the drawing]

Figures 1 and 2 are plan views of the telescoping table in its contracted and extended states, respectively; Figure 3 is a longitudinal cross-sectional side view of the main parts of a conventional folding table; and Figure 4 is a main part of a conventional folding table. FIG. 5 is a longitudinal cross-sectional side view of the main part showing the telescoping folding table according to the invention; FIG. 5 is a longitudinal side view of the main part showing another embodiment of the same table; FIG.
The figure is a partially enlarged side view of the embodiment shown in FIG. 5. 1...cabinet, 1a...cabinet opening, 2, 2'...deck, 3...
... Hinge, 4... Pivot joint, 5... Drive mechanism, 5a... First arm. 5b...Second arm, 5c...Spring,
6... Pivot joint, 7... Reception is pin, 8...
...Claw 9...Pivot joint, 10...
・Press pin.

Claims (1)

[Scope of Claims] 1. Two decks hinged to each other are stored in a cabinet having an opening for entering and exiting the decks in a folded state with one deck being the upper deck and the other deck being the lower deck, In a folding table in which both decks are pulled out from the opening and unfolded into a flat shape, one of the upper decks in the folded state rotates around its pivot point so that both decks can be folded away from each other. , and is pivotally mounted in the cabinet so that it can be unfolded, and the lower deck in the folded state has a locked part in its free position, excluding the overlapped surface with the upper deck, and has a drive mechanism. At the tip of the receiver and locking tool! The arm, which is equipped with an arm attached to the illumination deck and a spring for pushing up the deck, and which is pivotally attached to the base end or the cabinet, is designed such that the arm on the distal end side can freely come into contact with the back surface of the lower deck and is locked. The folding table is arranged such that the tool can be freely engaged with and detached from the locked portion, and the spring whose elastic force is reversed in both the deck deployment direction and the deck storage direction is attached to the arm. 2 The locked part of the lower deck consists of a claw formed on the back surface of the deck, the arm of the 1 drive mechanism consists of a single arm force, the deck bridge is provided with a pin on the tip side of the arm, and this bridge is The folding table according to claim 1, wherein the pin serves both as a receiver and a locking member. 3. The locked part of the lower deck consists of the end surface on the free end side of the deck, and the arm of the drive mechanism consists of a first arm that is shaped like a front abbreviation and a second arm that is straight. The corner part of the second arm is pivotally connected to the cabinet, and the long side of the arm is provided with a pin for a receiver that can freely come into contact with the back surface of the lower deck. The second arm is pivotally connected to the short side of the first arm, and a suppressing pin is provided on the tip side of the second arm as a locking device that can be freely connected to and detached from the locked portion, and a spring is connected to the first arm. A folding table according to claim 1, which is mounted on a folding table.