JPH0520657U - Elevating two-stage bed safety device - Google Patents

Abstract

(57) [Summary] [Purpose] In a lift bed with two beds,
For the fact that the user of the lower bed has a large force when caught between the lower surface of the upper bed and the danger,
Provided is a safety device that reduces the lifting force of a drive device. [Configuration] Upper and lower bed pedestals 10 and 2 in the guide rail 6
A hydraulic damper 40 is provided between 0, and the tip of the arm member 13 for projecting from the lower bed platform 20 and engaging with the guide rail 6 in a vertically movable manner has a horizontal direction with respect to the guide rail 6. A damper actuating member 50 that can move back and forth is equipped in the lower part of the hydraulic damper 40.
A guide member 60 having a groove portion 61 is provided so as to slide 0 in the vertical direction and advance and retreat in the horizontal direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a movable bed that is installed in a relatively small room and is equipped with two bed mounts that can move up and down along a guide rail provided in the structure, and particularly, to a movable bed driven by an electric drive device. A bed frame that can be stowed up and down by winding and rewinding and can be moved between when it is not in use and when it is not in use so that the floor area can be effectively used when not in use. This relates to a safety device for an elevating bunk bed equipped with two upper and lower beds.

[0002]

[Prior Art]

 Today, more and more rooms are equipped with beds as lifestyles diversify. In particular, in urban areas, housing expenses as a part of living expenses continue to soar, while the number of condominiums provided and the number of residents are increasing. is doing. However, if the bed is fixed in such a small room, the floor area that it occupies cannot be effectively used, and it is practically impossible to equip the bed in a small room area.

[0003] Therefore, conventionally, there is a bed in which one end of the bed is fixed and the other end of the bed is erected so that the bed can be stored on a wall surface. At times, it was inconvenient to move the furniture and return it to the space after standing it up. Also, it was inconvenient to tie the mats and futons so that they would not fall off during storage, or to store them separately. In addition, a lifting bed has been proposed in which the bed is raised and lowered horizontally and stored in the space of the ceiling, but the early ones are of a manual type, which is a burden for daily work such as housewives. However, even if an electric type is introduced, its drive device is still labor-saving, it does not go beyond the mechanism itself, there is no safety device for moving large furniture, In addition, many furniture items were not so sophisticated. Therefore, the applicant previously investigated the use tendency of the lifting bed and proposed an electric lifting bed equipped with two bed pedestals so that it can cope with an increase in the family structure and changes in lifestyle, etc. ( It has been put into practical use by equipping various safety devices with practical applications, such as Japanese Patent Application Nos. 63-167059 and 167060, and the name of the plan is “electric lift bed”.

[0004]

[Problems to be solved by the device]

 However, in the above-mentioned lifting bed, in terms of control associated with lifting and lowering of the bed base and user safety, since the development of a single lifting bed, knowledge and experience have been successively gained, and safety devices must be fully equipped. However, as a safety device regarding the arrangement of two bed pedestals, the new issue is that the number of users is increased and the operation of the two-stage bed pedestal is controlled. However, the management becomes complicated, and basically, there is a risk that the user of the lower bed will be caught between the lower bed of the upper bed and the operation in which they are stored in the ceiling in order from the lower one. It is a big thing. That is, the force for raising and lowering the two-stage bed pedestal is the sum of the forces for lifting those weights at the same time, plus the surplus power for stable operation including the user's weight. Considering that the force received by the user when he is caught between the ceiling and the ceiling is the force that is subtracted from his remaining weight, which is his own weight, as a load because the two-stage bed platform is suspended. It is good, however, that the force received by the user of the lower bed platform when it is sandwiched between the ceiling of the lower surface of the upper bed platform is that the upper bed platform is stationary and the driving force to lift this bed platform is stationary. Therefore, even if the user's weight is subtracted from the remaining capacity, it is equivalent to the fact that a large lifting force is applied, which is comparable to the weight of the upper bed platform. Become.

Therefore, in order to make the user's risk when using the lower bed pedestal equal to that of the user of the upper tier, the upper berth should be lifted when the lower tier is raised. Even if the gantry is stationary, some means is provided so that its weight is supported by the lifting force as well as the lower bed pedestal, or the ascending drive force of the upper tier and the lower tier of the pedestal and the above-mentioned remaining power are Even if they have the same total sum, it will be an issue to decide whether to use a unique drive device for each, or to prevent the lower bed platform from being raised except when it is empty, due to restrictions on usage. ..

[0006]

[Means for Solving the Problems]

 In consideration of the above-mentioned use situation of the elevating bunk bed, the present invention eliminates the problem that the user is caught between the bed platform and the ceiling at the time of ascent, and fully utilizes the lifting force. It was created for the purpose of providing a lifting type two-stage bed that does not leave any surplus power and promotes the safety of the user, and it is lifted and lowered along the guide rails provided in the structure. The upper stage of the guide rail in the safety device of the elevating two-stage bed, which is equipped with two movable bed pedestals, and the rope is wound up and down by the drive of the electric drive device to raise and lower. Is equipped with a hydraulic damper near the lower limit position of the bed mount, and the tip of the arm member for protruding from the lower bed mount and being able to move up and down with respect to the guide rail is Damper operating part that can move back and forth horizontally A guide member having a groove is formed below the hydraulic damper so that the actuating member can be slid in the vertical direction and can be moved back and forth in the horizontal direction. This is a lifting bunk bed safety device.

Therefore, according to the present invention, a guide rail that guides the upper and lower bed pedestals up and down is equipped with a hydraulic damper that operates as the lower bed pedestal moves up and down. Both ends of the bed pedestal are kept at a specified distance, and the lower bed pedestal is raised before the user is caught between the lower bed pedestal and the lower ceiling of the upper bed pedestal. Activates the hydraulic damper so that even if the upper bed platform is stationary, the force equivalent to its weight is used as the lifting force of the drive unit in the same manner as the lower bed platform. The rising inertia acting on the person can be limited to within the range of the operating capacity of the drive device, and safety can be ensured. In particular, if the lower bed pedestal rises and falls within a predetermined range from the upper tier bed pedestal, the bed pedestal elevation causes the actuating member to advance and retreat by the guide member, and acts on the damper through the operation. The reaction force is added to the drive unit instead of the weight of the upper bed pedestal, and the lifting force is not left, so that the purpose is achieved.

[0008]

【Example】

 The construction of the lifting bed of the present invention will be described in detail with reference to the preferred embodiments shown in the drawings. FIG. 1 is a diagram for explaining the basic configuration of a lifting bed to which the safety device of the present invention is applied, FIG. 2 is a diagram for explaining the basic configuration of the safety device, and FIGS. It is a front view, a horizontal sectional view, and a vertical sectional view of a part. In the figure, reference numeral 1 indicates the whole of the ascending / descending bed, 2 is the floor of the living room in which the ascending / descending bed 1 is installed, 3 is the ceiling, 4 is a wall that typically represents the structure of the building, and 5 is This is the main structure of the lifting bed 1. The structure 5 is composed of four pillars 6 having a horizontal cross section suitable for a guide rail, and a beam member 7 connecting the tops of the pillars 6, and the lower member of the pillars 6 and the beam member 7 are installed in a room where they are installed. The height is adjustable according to the internal law. Further, the structure 5 may be constructed along the wall 4 of the building, or may be an independent structure.

The elevating bed 1 has a bed cradle which is the other main body in addition to the structure 5, and in this embodiment, the elevating bed 1 constitutes an elevating two-stage bed, and includes an upper bed pedestal 10 and The lower bed pedestal 20 is vertically mounted on a guide rail 6 as a pillar so as to be vertically movable. The bed pedestal 10 is composed of a frame body 11 at the lower part thereof, a side plate 12 fixed to the frame body 11 and raised to the periphery, and an arm member 13 protruding from the frame body 11 to engage the bed pedestal 10 with the guide rail 6. ing. The arm member 13 is a hollow member that extends the frame body 11 in the longitudinal direction so as to be placed in a groove 6a formed in the facing surface of the guide rail 6 and engage with the guide rail 6 at an interval. It is being touched.

As shown in the upper part of the figure, a handrail 14 is provided on the upper surface of the side plate 12 of the bed frame 10, and 15 is a floor stretched between the upper surfaces of the frame 11 by a plate material, a spring, etc., A ceiling 16 is stretched on the lower surface side of the frame body 11. The frame body 11 is framed by a peripheral frame and an internal beam material by a suitable metal or wooden material, and constitutes a frame of the bed pedestal 10.

Next, the bed pedestal 20 may be configured in the same manner as the bed pedestal 10 described above, but this embodiment is different only in that the handrail 14 is not attached. Regarding the utilization surface and the lifting operation, a known upper and lower limiter is provided to separate the lower working area A, the upper working area B, and the storage space C of both bed pedestals. These bed pedestals 10 and 20 are equipped with a drive device D in a casing 8 formed in a part of the beam of the structure 5, and are controlled and driven by a push button switch (not shown).

Next, the safety device of the present invention will be described in detail with reference to FIGS. 1 to 5. First, in FIG. 1 and FIG. 2, the safety device 30 as a whole is composed of a hydraulic damper 40, an operating member 50 that causes the damper 40 to act on the pressure side, and a guide member 60 that guides the operating direction of the operating member 50. Is becoming The hydraulic damper 40 is installed vertically in the upper part of the working area A of the bed platform 20 in the guide rail 6 with reference to a predetermined position that secures the required space (normal seat height) for the user, and the cylinder. 41 and a ram 42, which are fixed to the guide rail 6 by a fixing pin 43 and a mounting bracket 44, and a receiving plate 45 is attached to the lower end of the ram 42 and installed downward. The hydraulic cylinder 40 exerts a reaction force downward by pressing the receiving plate 45 at the lower end.

The actuating member 50 for the damper 40 protrudes from one end of the lower bed platform 20 and is equipped at the end of an arm member 13 provided for engaging with the guide rail 6 so as to be movable back and forth in the horizontal direction. is there. The actuating member 50 is formed by slidably fittingly inserted into the hollow arm member 13, and the sliding structure thereof can be formed by a known means. Biased in the direction.

Below the hydraulic damper 40, a guide member 60 is arranged corresponding to the operation area of the ram 42. As shown in detail in FIGS. 3 to 5, the guide member 60 is a vertical member, and is formed in a box shape with an open front surface, a central portion forming a concave groove portion 61 having a substantially boat shape, and both side walls 62. The upper and lower end walls 63 are joined by a bottom wall 64, and the end wall 63 forms slopes 63 at both ends of the groove 61. The bottom wall 64 is further formed with a shallow recessed groove 65 in the vertical direction. The groove 65 cuts out the end wall 63 at the upper and lower ends, and as shown in FIG. It regulates sliding. The front end surfaces of the side walls 62 and the upper and lower end walls 63 are vertically continuous to form a sliding surface 66 of the operating member 50 in the guide rail 6 and are substantially the same as the inner surface of the cylinder 41. When the operating member 50 forms a surface and the tip of the operating member 50 slides, the operating member 50 is in a posture of being pressed and retracted.

[0015]

[Work]

 The operation of the safety device 30 of the present invention will be described based on how to use the lifting bed 1. First, the lift bed 1 operates the lower bed platform 20 in the operation area A by the drive device D. When the bed platform 20 reaches the upper part of the operation area A, the operating member 50 mounted on the arm member 13 of the bed platform 20 moves on the sliding surface 66 as the bed platform 20 moves up, and the liquid of the safety device 30 is removed. When reaching the position of the pressure damper 40, the tip end of the operating member 50 horizontally projects along the lower inclined surface 63 of the guide member 60 due to the bias from the inside. At this time, the upper surface of the tip of the operating member 50 faces below the receiving plate 45 of the ram 42, and the rising force of the bed platform 20 eventually pushes up the ram 42 to contract the damper 40. Here, the reaction force of the damper 40 is downwardly applied to the weight of the bed pedestal 20 as the load of the driving device D, and is subtracted from the lifting force of the bed pedestal 20, and is regulated by the force setting of the damper 40 and the length of the bottom wall 64. Even if the user of the lower bed pedestal 20 is caught between the lower bed pedestal 20 and the lower surface of the upper tier bed pedestal 10 within this range, there is no risk of receiving a large force due to the setting of the stroke.

Then, when there is no user on the bed pedestal 20 and only the storage operation is performed, when the bed pedestal 20 is continuously raised, the operating member 50 retracts along the upper slope 63, The receiving plate 45 of the hydraulic damper 40 is released from pressing. Therefore, the tip of the operating member 50 moves on the upper sliding surface 66, and the bed pedestal 20 contacts the lower surface of the bed pedestal 10 from below. Instead of the force, the bed pedestal 10 is used for lifting, and the upper and lower bed pedestals continue to rise integrally by the force of the drive unit D, reach the storage space C, and overlap with the lower surface of the ceiling 3. The space below both bed cradles becomes available. When the bed platform 20 is used, when it is lowered, the operating member 50 of the arm member 13 extends along the slope 63 and projects toward the guide member 60 side, so the outward bias is temporarily released and the damper is It is necessary to face below the receiving plate 45 of 40.

[0017]

[Effect of the device]

 As described above, the safety device for the lifting type bunk bed of the present invention is equipped with two bed pedestals that can be moved up and down along the guide rails provided in the structure, and is used to drive the rope by the drive of the electric drive device. In a safety device for an elevating bunk bed that is moved up and down by winding and rewinding operation, a hydraulic damper is installed near the lower limit position of the upper bed platform in the guide rail, and the lower bed platform is installed. At the tip of the arm member for projecting from and engaging with the guide rail so as to be able to move up and down, a damper actuating member that can move forward and backward in the horizontal direction with respect to the guide rail is equipped. Since it is configured by providing a guide member having a concave groove portion so as to slide the operating member in the vertical direction and advance and retreat in the horizontal direction, it is basically configured in the same manner as a general lifting bed. Thing However, by installing a hydraulic damper in the middle of the guide rail and operating it with the lifting force of the lower bed pedestal, and reducing the reaction force from the lifting gravity, the bed pedestal of the lower tier is used when using the bed pedestal. Not only can the risk of the user being caught between the upper bed cradle and the ceiling of the user of the upper tier bed cradle be made equal, but in particular, the safety device , It is extremely simple and effective because it is installed inside the guide rail and the bed pedestal itself, and it is easy to manufacture and easy to handle as it is related to the conventional safety device. There is a great deal of contribution to the future of the bed and the life in which it is used, and it has an extremely useful epoch-making effect.

[0018]

[Brief description of drawings]

FIG. 1 is a diagram illustrating a basic configuration of a lift bed to which a safety device of the present invention is applied.

FIG. 2 is a diagram illustrating a basic configuration of a safety device.

FIG. 3 is a front view of a main part of the safety device.

4 is a horizontal sectional view of the safety device taken along line IV-IV in FIG.

FIG. 5 is a vertical sectional view of a main part of the safety device.

[0019]

[Explanation of symbols]

 1 Lifting Bed 5 Structure 6 Pillars, Guide Rails 8 Casing 10 Bed Stand 13 Arm Member 14 Handrail 16 Ceiling 20 Bed Stand 30 Safety Device 40 Hydraulic Damper 41 Cylinder 42 Ram 45 Support Plate 50 Actuator 60 Guide Member 61 Recessed Groove 63 End wall, slope 64 Bottom wall 65 Restriction groove A Working area B Working area C Storage space D Drive device

Claims (2)

[Scope of utility model registration request] 1. An elevating type in which two bed pedestals capable of moving up and down along a guide rail provided on a structure are provided, and the rope is wound up and down by a drive of an electric drive device and is rewound by a rewinding operation. In the bunk bed safety device, a hydraulic damper is installed near the lower limit position of the upper bed platform in the guide rail so that it can project from the lower bed platform and engage with the guide rail in a vertically movable manner. At the tip of the arm member of, a damper actuating member that can move back and forth horizontally with respect to the guide rail is equipped, and below the hydraulic damper,
A lifting bunk bed safety device comprising a guide member in which a concave groove is formed so as to slide the actuating member in a vertical direction and advance and retreat in a horizontal direction. 2. The guide member of the actuating member faces the tip of the ram of the hydraulic damper in its guide groove.
The elevating-type bunk bed safety device according to claim 1, wherein sloped surfaces are formed at upper and lower ends of the recessed groove to advance and retract the sliding operating member in a horizontal direction.