JPS6125387Y2 - - Google Patents

Description

[Detailed description of the invention] This invention allows the legs of desks, tables, dining tables, etc. to be folded and raised quickly, reliably, and in one action (one touch), and has handles at both ends of a long slider that is easy to carry. Regarding the table.

Conventionally, there is a table whose legs can be folded and stored for convenience when not in use. However, the handles of these conventional tables were fixed to only one place on the moving slider, so the position of the handle changed greatly depending on the direction in which the table was raised, making it difficult to raise and lower the legs quickly and reliably. Moreover, there were also inconveniences when carrying the device using the handle.

Therefore, the purpose of this invention is to fold and raise the table legs extremely quickly, reliably, and in a single manner by operating one of the handles provided at both ends of the long slider.
The object of the present invention is to realize a table having handles at both ends of a long slider, which can be achieved by one-touch operation, has an extremely simple structure, and is easy to carry.

Embodiments of this invention will be described in detail and specifically below based on the drawings.

Figures 1 and 2 show a first embodiment of this invention. Legs 6, 6 and 8, 8 are erected on the back surface of the face plate 4 of the table 2, and are configured to be foldable only inward by hinges 10. the leg 6,
A crosspiece 12 serving as an auxiliary member is installed between the legs 6 to raise and lower the legs 6 at the same time, and also to prevent the legs 6 from swinging laterally. Similarly, there is also a crosspiece between pillars 8 and 8.
4 will be constructed for the same purpose as mentioned above. The said crosspiece 12,
One end of support rods 16 and 18 made of an elastic material such as a steel plate is pivotally connected to the first pivot point 2, respectively.
It is assumed to be 0.20. Further, the other ends of the support rods 16 and 18 are overlapped and pivotally connected to each other to form a second pivot joint 22. And at the second pivot point 22,
A long slider 24 is pivotally mounted, first and second handles 26 and 28 are provided at both ends of the long slider 24, and the long slider 24 is connected to a first pivot point between the first pivot points 20 and 20.
It is configured to be slidable so as not to come off the guide rail 30 laid on the center line C1. Further, a stopper 32 is provided at one end of the rail 30 for tightening the legs 6 and 8 when standing up. A second pivot point 22 is pivotally connected to the long slider 24.
is movable to a position slightly beyond the second center line C2, which is a straight line connecting each of the first pivot points 20, 20, that is, to a position slightly beyond top dead center, and can be stopped at a position slightly beyond the top dead center. It is configured as follows. Note that reference numerals 34 and 34 are frames for tightening the legs 6 and 8 in an upright manner.

Since this first embodiment is constructed as described above, it operates as follows.

In order to lower the legs from the standing state of the legs shown in FIG. 1 to the position shown in FIG. 2, first, bend the second pivot point 22 downward in FIG. First handle 2 of long slider 24
6 or the second handle 28, whichever is easier to operate, move it downward along the guide rail 30. Then, the legs 6 and 8 begin to fold inward and are folded. That is, one action (one touch) causes the leg to fall. Moreover, in order to raise the legs 6 and 8 which are in a collapsed state, the above-described operation may be performed in a completely opposite manner.
That is, in order to move the long slider 24 upward in FIG. 2, either the first handle 26 or the second handle 28, whichever is easier to operate, is held and moved. Then, the long slider 24 slides along the rail 30 and finally reaches the second center line C2 position.
When this position is reached, the support rods 16 and 18 become in a state where they generate the maximum elastic force, strongly pushing the crosspieces 12 and 14 outward, and the table legs reach their climax. However, at this time, in this first embodiment, the second pivot point 2
2 is movable to a position that slightly exceeds the second center line C2. It comes into contact with and stops. However, at this time, since the support rods 16 and 18 are made of an elastic material such as a leaf spring, they temporarily suppress the outward pushing force that occurs when the second pivot point 22 crosses the second center line C2. Absorbs the support rod 16,1
The force accumulated in 8 is divided into a force perpendicular to the longitudinal direction of the rail 30 and a force along the rail 30, which forces the long slider 24, i.e. the second pivot point 22, upwardly. In other words, it acts in a direction that prevents the legs from lodging. Therefore, when raising the leg, the leg is always pressed in the direction of tightening the standing leg, thereby reliably preventing the leg from collapsing and realizing one-touch leg raising.

In the table configured as described above, if we consider the case where the long slider 24 and the first handle 26 are missing, first of all, in order to make the legs fall, the second
It is necessary to hold the second handle 28 near the center line C2 and push it down to the position of the second handle 28 near the lower side edge in FIG. It becomes necessary to take

In addition, in order to raise the legs, the user must bend his/her body considerably, grasp the second handle 28 near the floor, and pull it up to the vicinity of the second center line C2, which is very difficult to operate in either case. In addition, in order to move this table, one has to grasp the handle 28 located near the second center line C2 and lift the center of the table up to the waist and carry it, which has a major drawback in that it is difficult to carry.

However, as in this invention, the long mover 24 and the first
If a handle 26 is provided, in order to tilt the leg, it is only necessary to push down the first handle 26 near the upper side edge in FIG. 1 to the position 26 in FIG. 2, that is, near the second center line C2.
To raise the leg, use the first handle 2 near the second center line C2.
It is very easy to operate by simply grasping the handle 6 and pulling it up to near the upper side edge without bending the body, and by simply moving the handle up and down at a convenient height. In addition, when transporting this table, the table can be carried by grasping the first handle 26 near the upper edge of FIG. 1 and suspended below the waist, resulting in a stable carrying position and extremely easy to carry.

The above effects are also common to the following examples. Note that the second pivot point was formed by overlapping the other ends of the support rods and pivotally connecting them to the long slider, but it can also be used as a second pivot point by respectively pivoting to the overhanging parts on both sides of the long slider. good.

Furthermore, the respective handles provided at both ends of the long slider may be connected by appropriate long rods to form an integrated long handle. In this way, the mechanical strength of the handle itself is improved. It also has the effect of making it easier to operate.

Figures 3 and 4 show a second embodiment of this invention. In this second embodiment, parts that perform the same functions as those in the first embodiment described above are given the same reference numerals and will be explained.

The feature of this second embodiment is that the table 2
A cover body 42 is placed on the back surface of the face plate 4, and a first groove 44 and a second groove 46 are provided below the cover body 42. That is, the first groove 44 is aligned with the first center line C.
1 and two second grooves 46 are provided on the second center line C2, and the first pivot points 20, 2 are provided at two locations on the second center line C2.
The movers 48, 48 with which the
6 is movably provided so as not to be removed. A connecting rod 49, which is also an auxiliary member, is hingedly connected between the movers 48, 48 and the crosspieces 12, 14, which are auxiliary members of the legs.

If configured as in the second embodiment described above, the first handle 2
6 or the second handle 28, the long slider 24 in the first groove 44 moves, and the support rod 1
6 and 18, the movers 48 and 48 move in the second grooves 46 and 46, respectively. And the mover 48,
48, the first pivot points 20, 20 are pivotally attached, and are further connected to the crosspieces 12, 14 by a connecting rod 49, so that the legs 6, 8 can be raised and lowered. In addition, the second grooves 46, 46 prevent the first pivot points 20, 20 from vertically and laterally swinging, and ensure that the legs are tightened securely and firmly when the legs are raised. By significantly extending the usable life of the step-stand folding mechanism and by reducing the opening of the connecting rod passage when closing the lid, the safety of the table as a whole can be increased, which is required for this type of furniture. There are no inconveniences that detract from the beauty of the exterior.

Figures 5 and 6 show a third embodiment of this invention.

The feature of this third embodiment is that a second rail 5 is attached to the rail 30 laid on the back surface of the face plate 4 in the first embodiment in order to raise and lower four independent legs.
2. A third rail 54 is added, and second and third movers 56 and 58 are installed inside the second and third rails 52 and 54, respectively.
is movably provided, and the four legs 6, 6, 8, and 8 are interlocked with each other. That is, the second rail 52 is provided at two locations on the second center line C2, and the legs 6, 6, 8, 8 and the third rail 54 are provided on the bisecting line C3 at a desired angle at the four corners of the back surface of the face plate 4. There will be four locations for each. The legs 6, 6, 8, 8 and the third slider 58 in the third rail 54 are connected to the first connecting rod 60.
The third mover 58 and the second rail 52
The second moving element 56 inside is connected to the second moving member 56 by a second connecting rod 62. Further, the second moving element 56 and the long moving element 24 are connected by support rods 16 and 18.

Therefore, when the first handle 26 or the second handle 28 of the long slider 24 is held and the legs 6 and 8 are raised and lowered, the second and third sliders 56 move inside the second and third rails 52 and 54. , 58 move in conjunction with each other, making it light and
This system allows the four legs to be raised and lowered reliably with one action (one touch).

It goes without saying that this invention is not limited to the above-mentioned embodiments, and that various modifications can be made without departing from the spirit of this invention.

For example, the second pivot point, which is pivotally connected to the long slider, is stopped at a position beyond the top dead center. It goes without saying that the second pivot point may be stopped at the top, or may be stopped before the top dead center.

Further, in the above embodiment, a stopper 32 was provided at one end of the rail 30, and the stopper 32 stopped the movement of the long slider 24, and tightened the legs to stand up. Preventive measures may also be used. That is, as shown in FIGS. 7 and 8, the long slider 24 has two first handles at its ends that can be grasped at the same time when grasping the first handle or the second handle, and is movable by a small amount in the longitudinal direction. Rod 7
2, 72 are provided, one end of the first rod 72, 72 and one end of the second rod 74, 74 are respectively pivotally connected, and the second rod 74,
The other end of 74 and the third rod 76 are overlapped and pivotally connected to each other. Then, the third rod 76 is attached to the long slider 24.
It is configured to be able to move a small amount in the width direction. Further, at the tip of the third rod 76, there is provided an engaging portion 80 which is not disengaged unless a disengaging operation is applied in the directions of arrows 78 and 79, and a receiving portion 82 for engaging the engaging portion 80 is provided. One location is formed at 84. Note that the length of the second rods 74, 74 after they are connected is the length of the first rod 7.
2, 72, and the first rod 7
A tension coil spring 86 is interposed between 2 and 72. Then, when the upper first rod 72 is moved upward, that is, in the direction of arrow 78 from the engaged state shown in FIG. The engagement with the leg is released and the leg is lowered down. In addition, in order to engage from the released state shown in FIG. 8, the biasing force of the spring 86 and the first
Just use the movement of the rods 72 and 72, and the third rod 7
The engagement between the engaging portion 80 of No. 6 and the step 82 is easily achieved, and the leg is held firmly in the standing position.

Furthermore, if the second pivot point is configured to stop before the top dead center and a large number of steps 82 are provided as shown in FIGS. 9 and 10, the movement of the long slider can be stopped and adjusted in multiple stages. This can prevent the legs from slowing down.

It should be noted that the present invention is not limited to the above-mentioned embodiment, and in short, any known structure that allows the unlocking operation to be performed from either side of the first handle or the second handle may be used.

In addition, in this invention, a crosspiece is a concept that refers to all the members that communicate with the pedestal, and auxiliary members also include the pedestal, and are connected to the pedestal and support the pedestal. This is a concept that refers to the member that is interposed between the rod and the rod. Further, the legstand/lower mechanism refers to the members involved in the raising/lowering operation of the legs, and collectively refers to all the members through which the force applied to the handle reaches the legs.

In addition, the above-mentioned legstand/folding mechanism is not limited to the upright legs.
Needless to say, the present invention can also be applied to so-called warped legs.

Since this invention is constructed as explained in detail above, the first and second handles allow the raising and folding of the legs to be performed extremely easily and quickly in one motion (one touch), and the construction is also outstanding. Since it is simple, it has a long service life, is inexpensive to manufacture, and is lightweight and easy to carry.

[Brief explanation of the drawing]

Figures 1 and 2 show a first embodiment of this invention, with Figure 1 being a bottom view of the table when its legs are up, and Figure 2 being a bottom view of the table when its legs are falling. Figures 3 and 4 show the second embodiment of this invention, Figure 3 is a bottom view of the table when it is up, and Figure 4 is a bottom view of the table when it is raised.
The figure is a bottom view when the legs are down. Figures 5 and 6 show a third embodiment of this invention, with Figure 5 being a bottom view of the table when its legs are upright, and Figure 6 being a bottom view of the table when its legs are falling. Seventh,
Figures 8, 9 and 10 show other embodiments for stopping the long slider of this invention, Figure 7 is an enlarged view of the main part when engaged, and Figure 8 is when disengaged. Figure 9 is an enlarged view of the main part when engaged, Figure 10 is an enlarged view of the main part.
The figure is an enlarged view of the main part when the engagement is released. In the figure, 2 is a table, 4 is a face plate, 24 is a long slider, 26 is a first handle, 28 is a second handle, 30 is a rail, and 32 is a stopper.

Claims (1)

[Scope of utility model registration request] A leg is provided on the back of the face plate so as to be foldable inward, one end of a support rod is pivotally connected to the leg or an auxiliary member connected to the leg to serve as a first pivot point, and the other end of each support rod is extended. A handle is fixed to the movable element as a second pivot point, including both ends of the long movable element, and a guide rail for guiding the long movable element is connected between the two first pivot points. Both ends of a long slider, characterized in that the long slider is placed on the center line of the rail, and is configured to raise and lower the legs by moving the long slider along the rail and moving the position of the second pivot point. A table with a handle.