JP2006512118A - Adjustable sofa or bed - Google Patents

Abstract

The present invention relates to a sofa or bed comprising a rotating element for adjusting the position and a motor drive. In order to prevent user injury caused by improper adjustment, the rotational movement is limited.

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. For adjustment, it is divided into several parts that can be turned away from the floor and / or moved to a position parallel to the floor.
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 the case if the sofa consists of an adjustable and fixed upper body part and leg part that continues from the seat part. If both parts are adjusted in opposite directions with respect to the person lying down, this person can be clamped between both parts. For other sofas, there is a risk of injury. This is because the foot may be tightened under the foot portion.

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

  According to the present invention, there is provided an adjusting motor having means for recognizing the boundary between adjacent parts so that there is no risk of injury when a separate adjusting motor is installed in a part that can be moved and changed its direction. It is to be installed.

  This ensures that there is no risk of injury due to the adjacent parts being too close to each other. This advantage is particularly important for a sofa with an upper body and legs. As a special supplement, means for restricting movement are taken for the leg portion and the foot portion to prevent the foot from being caught between the foot portion and the floor portion.

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 the position of the step at the changed position is calculated each time.
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 position of each step is 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 every time even if a load is applied to the distal end portion of each portion in all portions 1 to 5. Thereby, despite being a motor-controlled sofa, an absolutely heavy person can sit or 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 pinched 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 a similar manner as described above. In another embodiment, a safe distance is anticipated between the tip of the foot portion 5 and the floor so that the foot does not accidentally enter under the foot portion 5 and be damaged.
FIG. 3 is the sofa of the present invention with portions 4 and 5 both horizontal.
FIG. 4 is a sofa of the present invention in which all of parts 1 to 4 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 (12)

  A part that can be moved and changed direction, and a device that can be moved and changed direction, in particular, an adjustment motor, so that each person can change the direction in the opposite direction with the upper body and legs on it And / or have a part on which the person on top can put his legs and feet and turn in the opposite direction to the floor, that is, move between the parts in the opposite direction Adjustable sofa or bed, characterized by proper control of changing and turning in the opposite direction to the floor.   Assuming adjustment by the motor, in other words, when the computer determines the position of the part that changes direction by moving it, the control device will not move further in the dangerous direction when each part tries to move to a dangerous position. The sofa or bed according to claim 1, characterized by an adjusting method of blocking.   The sofa or bed according to claim 2, characterized in that the adjusting motor determines the position of the turning according to the adjusting method.   The position of the part is calculated from the angle at which the orientation is changed, and the adjustment method is determined empirically by gradually adjusting the adjustment device. At the same time, the angle based on the determined adjustment method is determined accordingly. The sofa or bed according to claim 3, wherein the position or the adjustment method is calculated based on a geometric method of the adjustment device.   The adjustable motor according to claim 1, characterized in that the adjusting motor used is arranged pivotably and can be driven out or retracted. Sofa or bed.   6. Adjustable sofa or bed according to any of claims 1 to 5, characterized in that the mandrel or threaded rod has a self-controlling force.   7. Adjustable sofa or bed according to any of claims 1 to 6, characterized in that it is used with a step motor or adjusting device.   7. The adjustment according to claim 1, characterized in that each part and the tip part of the adjustment device can also be adjusted with a load of at least 100 kg, even 200 kg and particularly preferably even at least 300 kg. Adjustable sofa or bed as described in any.   It is characterized in that it has a substructure that is safe to use even when subjected to a load of at least 100 kg, in particular at least 200 kg and particularly preferably at least 300 kg on the foot and / or head of the sofa during use. An adjustable sofa or bed according to claim 8.   10. Adjustable sofa or bed according to claim 9, characterized in that it has a substructure made of aluminum material, in particular perforated material.   11. Adjustable sofa or bed according to any one of the preceding claims, characterized in that a reinforcing part and / or a bed is used for the adjustment device of the part that can be moved and reoriented. 12. Adjustable sofa or bed according to claim 11, characterized in that it has an adjustment device functioning as a joint, which couples the part that can be moved and changed direction with the bed.