JP2006512119A - Adjustable sofa or bed - Google Patents

Abstract

The aim of the invention is to prevent users of sofas or beds comprising pivotable parts and a motor-actuated adjusting drive unit from getting injured due to an improper adjustment. Said aim is achieved by the fact that the adjusting device is disposed in a compact manner underneath the sofa or bed while the distance remains unchanged when the sofa or bed is adjusted such that the contour of the adjusting device is essentially the same as that of the support area of the sofa or bed following an adjustment.

Description

  The present invention relates to an adjustable sofa or bed. This invention includes not only a sofa but also a wider bed.

Such sofas are well known in the art. For adjustment, the sofa is divided into several parts. By doing so, each part can be moved and turned.
Further preferred is that the part which can be moved and changed in direction can be rotated each time and fixed at least.

  Some well-known sofas also have different parts that can be turned by a single motor. The motor can be turned to any desired position. In trying to get closer to the best, many have been forced to turn around without a motor. At that time, I had to stand up and lie down again and again. If it can be adjusted with a motor, it is no longer necessary, so it can be seen that adjusting the motor makes it more comfortable.

  Adjustments that move with a motor and change direction at the same time involve the risk of injury. This is especially true when a large and bulky adjustment device is placed under the sofa. Users may pinch hands and feet.

  The object of the present invention is to eliminate the risk of injury when changing the orientation.

  It is achieved according to the invention that a very small adjustment device is provided under the sofa, and by means of that adjustment device, the position of the sofa is basically moved at least until it approaches the contour of the sofa bed plane. The invention is also achieved with the help of an adjusting motor arranged in a straight line at a slight distance below the sofa. In particular, it assumes a separate adjustment motor for each part that can be moved and turned.

In particular, regulating motors with self-control and / or fixing force are considered. Self-control is done, for example, using a conduction device having a mandrel or threaded rod. In that case, for example, a mandrel or a threaded rod and a nut may be combined. It is possible to arrange a mandrel or threaded rod and / or nut that can be moved and reoriented. Along with the mandrel, the gear can also work together. At least a mandrel or a threaded rod with a step motor may be used for the bed. The gentler the inclination of the mandrel or the thread of the thread bar, the stronger the self-controlling force of the mandrel or thread bar.
Instead of or in addition to self-control, mechanical and / or electronic control, more specifically electric control, in particular motor control, is envisaged.

The step motor mandrel or thread rod and / or nut can be selected as appropriate. As the drive motor, a step motor that simultaneously controls gears is preferable. The step position when the step motor controls the gears is arbitrary.
Embodiments of the invention are described in detail in the drawings.

  1-4 show a sofa having a chair part 1, a leg part 4, a foot part 5, an upper body part 2 and a head part 2. Separate parts of the joint are joined together. In an embodiment, the conventional hinge and the movable part are engaged by this joint and connected to each other by bolts. In other embodiments, parts or leaf springs made of synthetic material, each of which can be freely bent, are used as hinges.

  The chair part 1 is firmly connected to a solid foundation structure. The solid foundation structure has a foot 6 made of a strongly bent aluminum material. Holes are drilled to reduce weight. In the embodiment, two arch-shaped round aluminum materials are arranged at regular intervals. At the place where the chair part 1 is touched, there is an arch-shaped curve projecting outward. The aluminum material extends in an arc from the curve to the front of the sofa until it is in close contact with the floor. At the same time, taper toward the tip of the aluminum material.

  Parts 10 and 11 are provided in the parts 1, 2 and 3. These parts are reinforced from the electric hub motor 9 to the joint to form a bed. The foot portion 5 and the head portion 3 are similarly regarded as a bed, but are not described in the examples. The hub motor is connected to the mandrel 12, and is moved out of the case and retracted by rotation.

  The mandrel 12 is connected to the head via a hinge and is connected to the part 10 so as to face each other. This makes a bed. Parts 10 and 11 are coupled to the other ends of the hub motors 8 and 9. All hub motors are electric step motors, and each step position is fixed.

The hub motor has a limit in movement when changing direction. In the embodiment, the limit of movement when changing the direction is calculated by a computer, whereby the step position is recorded, and each time the step position at the changed direction is calculated.
The calculation is done empirically or based on the geometry available for the part related to the turning motion. By calculating empirically, the position where the direction is changed is determined, and the individual step positions are known. By comparing all the positions that change the direction, it is possible to prevent the hub motor from being excessively moved out or retracted, or being excessively approached or separated by the vibration of the part. In the embodiment, a computer is used for controlling the hub motor. The hub motor is moved in a safer direction so that it can exit and retract in a safer direction.

In the embodiment, the hub motor is arranged so that it can be adjusted each time even if a load is applied to the distal end portion of each portion in all the portions 1 to 5. Thereby, even though it is a motor-controlled sofa, an absolutely heavy person can sit and lie down on the sofa in any position.
In a further embodiment, a design assuming a load of 200 kg was made, and in particular, a design assuming a load of only 100 kg was also tried.

Regarding the problem of the adjusting force of the parts 1 to 5, an adjusting mechanism is provided so that the state of the generated load is maintained independently. The foundation structure is also designed from the standpoint of strength and safety.
Hub motors 8 and 9 are located a short distance from portions 1-5. That is, as shown in the side view of the sofa, the hub motors are essentially arranged in a straight line. In this case, the straight line extends substantially parallel to the contour line of the sofa base of FIG. 4, and the straight line of the sofa portion extends from FIGS. 1 to 3 so as to coincide with the contour line of the sofa base. That is, it has essentially the same outline. The concept of “essentially similar” includes the case where the inclination of the longitudinal axis of the hub motor is tilted by 20 ° from the natural lying position, or parallel to the flat support for lying naturally.

The distance between the hub motors 8 and 9 is 15 cm in the embodiment. In other examples, it is 20 cm or 30 cm.
The above structure makes the distance between the sofa main body and the floor as a preferable adjustment mechanism, and reduces the risk of injury. As a result, the user's foot can be prevented from being caught by the adjusting mechanism.
In the embodiment, the adjusting mechanism is arranged at the center of the lower part of the sofa where the user's hand cannot reach so that the user will not get injured.

In an embodiment that has not yet been described, mattress-like cushions are placed on parts 1-5, and the cushion and sofa adjustment mechanisms (parts 1-5 and their adjustments) are covered, which is also safe Contribute.
In other embodiments, portions 1-5 and the adjustment area are covered with a cushion.

In the embodiment, when the rotation angle of the portions 2 and 4 is suppressed to 70 ° or less during adjustment, wider rotation of the portions 2 and 4 is prevented. Its position is represented in FIGS. In another embodiment, the limit value can be changed by changing a preset reference value of the computer as a smaller or larger angle.
1 and 2, the foot portion is in a horizontal state.
The calculator and device also prevent the foot portion 5 from contacting the floor in the same manner as described above. In another embodiment, a safe distance is expected between the tip of the foot portion 5 and the floor so that the foot will not accidentally get injured under the foot portion 5 and be damaged.
FIG. 3 shows the sofa of the present invention with portions 4 and 5 both horizontal.
FIG. 4 shows the sofa of the present invention where all of parts 1-5 are horizontal.

1 is a perspective view of a sofa having a chair portion, a leg portion, a foot portion, an upper body portion, and a head portion. FIG. It is a side view of the sofa of FIG. FIG. 6 is a side view of the sofa of the present invention with both leg portions and foot portions horizontal. It is a side view of the sofa of this invention in which the chair part, the leg part, the foot part upper body part 2, and the head part are all horizontal.

Explanation of symbols

1 Chair part 2 Upper body part 3 Head part 4 Leg part 5 Foot part

Claims (11)

  A part that can be moved and changed its direction and a device that can change its direction by moving, in particular, an adjustment motor, so that each person can turn in the opposite direction with the upper body and legs on it. Arrangement of small adjustment devices that can be changed and / or have a part on which a person who sits on top can put his legs and feet and turn in the opposite direction to the floor, i.e. under the sofa An adjustable sofa or bed characterized in that the distance from the part to the sofa base remains essentially unchanged while moving the part that can be moved and turned.   2. Adjustable sofa or bed according to claim 1, characterized in that the separate adjustment motors are arranged side by side on a straight line under the sofa which is at least close to the contour of the sofa or bed.   3. Adjustable according to claim 1 or 2, characterized in that the distance from the sofa base plane to the center point of the arranged adjusting motor is 30 cm or less, preferably 20 cm or less, more preferably 15 cm or less. Sofa or bed.   4. The method according to claim 1, wherein the vertical axis of the adjusting motor below the table plane is inclined at a maximum of 20 ° with respect to the portion that can be changed by moving. 5. Adjustable sofa or bed as described in.   The adjustable sofa or bed according to any one of claims 1 to 4, characterized in that an adjusting device is arranged in the center under the sofa base.   6. Adjustable according to any one of claims 1 to 5, characterized in that the adjusting motor used is arranged pivotably and can be driven out or retracted. Sofa or bed.   7. Adjustable sofa or bed according to any of claims 1 to 6, characterized in that an adjusting device is housed in the cushion cover and / or cushion.   10. Adjustable sofa or bed according to claim 9, characterized in that the substructure is made of aluminum material, in particular perforated material.   9. An adjustable sofa or bed according to claim 8, characterized in that the arched aluminum material is joined to the chair portion where the outer arch is most bowed and extends to the floor at the tip.   The adjustable sofa or bed according to claim 9, characterized in that the aluminum material becomes progressively thinner towards the tip. The adjustable sofa or bed according to any one of claims 8 to 10, characterized in that the adjusting device is installed between two aluminum materials.