JPH0661230U - Bed standing equipment - Google Patents

Abstract

(57) [Summary] [Purpose] The bed does not require a large and complicated mechanism at the bottom of the bed, is mechanically simple, and can be used especially on tatami mats of ordinary households. To provide a wake-up device. [Structure] Base frame 11 installed under the bed
A drive shaft 20 installed at a substantially boundary position between an upper half portion and a lower half portion of the bed of the base frame; a drive portion 30 for rotating the drive shaft so as to freely rotate forward and backward; An engaging member 40 provided, an actuating member 50 that is axially supported by the engaging member so as to be engaged with the engaging member and freely rotate upward, and an axially supported by the base frame. The bed upper half support member 60 rotates between the horizontal position and the standing position by the operating member.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a bed standing device.

[0002]

[Prior art]

 For example, there is known a bed in which a standing device is provided at the bottom of the bed frame and the upper half of the bed can be raised or tilted for the convenience of care for the sick or the elderly. It is also known that the upper half of the bed is configured to stand up for the purpose of wake-up or reading in bed, instead of the above-mentioned purpose of care.

As a conventional upright structure of such a bed, generally, a jack mechanism or a worm gear mechanism is provided in the lower part of the bed frame, and this is operated manually, and in the case of care, it is troublesome for others. The bed user must be able to activate it immediately when he wants to get up. In addition, it takes some effort to manually raise the upper half of the bed.

Therefore, in recent years, there has been proposed a device in which the erection device is operated by a motor to automatically raise and lower the upper half of the bed. However, in the conventional structure in which the standing device is automatically operated by a motor, a large and complicated mechanism is required at the bottom of the bed, and if a bed with legs is used in a hospital or the like, the legs used in general households, especially on tatami mats, are not required. It was almost impossible to use as a bed.

Further, when the upper half of the bed is automatically lifted, especially when the upper half of the bed is once raised, the futon, human limbs, etc. may be lifted by the upper half of the bed for some reason. If they are in the lower part of the bed, the lower half of the bed may pinch them and cause an unexpected accident or trouble.

[0006]

[Problems to be solved by the device]

 Therefore, the present invention intends to provide a bed erection device that does not require a large-scale and complicated mechanism at the bottom of the bed, is mechanically simple, and can be used especially on a tatami mat of a general household. . In addition, the invention also provides a safety mechanism in which, when the upper half of the bed is descending, if there is an obstacle at the lower part of the upper half of the bed, the upper half will not be forced to descend further. It proposes the structure of the wake-up device of the high bed.

[0007]

[Means for Solving the Problems]

 That is, the present invention is based on a base frame installed at the bottom of a bed, a drive shaft that is installed substantially at the boundary between the upper half and the lower half of the bed of the base frame, and the drive shaft can be rotated in the forward and reverse directions. A drive unit that rotates in a vertical direction, an engagement member integrally provided on the drive shaft, and a shaft supported by the engagement member so as to engage with the engagement member and freely rotate upward. A bed erection device comprising: an operating member; and an upper bed half supporting member pivotally supported by the base frame and rotatable between the horizontal position and the standing position by the operating member.

[0008]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a vertical cross-sectional view showing an example of a bed provided with a standing device of the present invention, FIG. 2 is a plan view of the standing device shown in FIG. 1, FIG. 3 is a perspective view showing a main part thereof, and FIG. FIG. 5 is a sectional view showing an operating state, and FIG. 5 is a flow chart showing an operation example when the standing apparatus of the present invention is used for rising.

As shown in FIGS. 1 and 2, the standing apparatus 10 of the present invention comprises a base frame 11, a drive shaft 20, a drive unit 30, an engaging member 40, an operating member 50, and a bed upper half supporting member. And 60. The base frame 11 is made of wood, metal, resin, or the like, and has a substantially U-shaped plan. In the embodiment, it is directly placed on the tatami mat, but legs may be provided if necessary.

The drive shaft 20 is rotatably installed between the frame side members 11A and 11B so that the drive shaft 20 is located substantially at the boundary between the upper half B1 and the lower half B2 of the bed B in the base frame 11. To be done.

The drive unit 30 is provided outside the side member 11 A of the machine frame 11 as shown in FIG. 2, for example. If there is a space under the machine frame 11 such as a bed with legs, it may be installed under the machine frame 11.

The drive unit 30 is composed of a known worm gear device including, for example, a worm 31 and a worm wheel 32, and is operated by a motor 33. The worm 31 is connected to a well-known forward / reverse motor 33 and rotates in a forward / reverse direction. The rotation shaft 35 of the worm wheel 32 is connected to or integrated with the drive shaft 20, and the rotation of the worm 31 is transmitted to the drive shaft 20.

Next, the engaging member 40 is provided integrally with the drive shaft 20 inside the base frame side members 11A and 11B near both ends of the drive shaft 20, respectively. It rotates by a predetermined angle as it rotates. The engaging member 40 is provided with an engaging portion 41 and an operating member supporting portion 45. The engaging portion 41 is preferably configured as a stepped portion as shown in FIG. 3, and the operating member support portion 45 is formed on the upper front side of the engaging portion 41. Reference numeral 46 is a support shaft.

The actuating member 50 is pivotally supported by the engaging members 40, 40. That is, the actuating member 50 has the shaft hole 51 supported by the support shaft 46 of the actuating member supporting portion 45 of the engaging member 40, and the engaging rear end engaging with the engaging portion 41 of the engaging member 40. It has a part 52. As will be understood from FIG. 3, the engaging rear end portion 52 of the actuating member 50 and the engaging portion 41 of the engaging member 40 are free from the upward rotational movement of the actuating member 50. Are engaged with each other.

A roller 55 is provided at the tip of the operating member 50 as shown in FIG.

As shown in FIGS. 1 and 2, the bed upper half supporting member 60 is a member for supporting the bed upper half B1 that moves up and down, and is constituted by a frame-like member having a substantially U-shape as shown in the drawing. To be done. Further, shaft portions 62, 62 are provided at both ends thereof so as to project, and the shaft portions 62, 62 are rotatably supported by pivotally supporting the shaft portions 62, 62 on the bearing portions 19, 19 of the base frame 11. It Reference numeral 19A in the figure represents a shaft stop lever.

Further, inside the side members 60A and 60B of the upper half support member 60, there is provided a guide groove 65 on which the roller 55 of the operating member 50 slides. While moving 55 in the guide groove 65, the upper half bed supporting member 60 is erected or restored.

The operation of the erection device of the present invention constructed as described above will be described. First, when raising the bed upper half supporting member in the original position in the horizontal state, the motor 33 is rotated in the forward direction to form the worm gear. The drive shaft 20 is rotated through the mechanism. As shown in FIG. 3, the engagement member 40 rotates integrally with the rotation of the drive shaft 20 in the direction of the arrow f, and the operating member 50 that engages with the engagement portion 41 of the engagement member 40 is also shown in FIG. As shown by the chain line 50a in FIG. Then, as described above, the roller 55 of the actuating member 50 slides in the guide groove 65 of the bed upper half supporting member 60 to erect the bed upper half supporting member 60, and the bed upper half part is raised. Cause

On the contrary, when returning the upper half of the bed in the standing position to the horizontal position, the motor 33 is rotated in the reverse direction to rotate the drive shaft 20 in the opposite direction. As shown in FIG. 4, as the drive shaft 20 rotates in the direction of the arrow r, the engaging member 40 also rotates integrally, and the operating member 50 that engages with the engaging portion 41 of the engaging member 40 is also illustrated. As shown by the chain line 50b of 4, the bed upper half supporting member 60 descends downward, and the bed upper half returns to the horizontal position.

At that time, as shown by the broken line in FIG. 4, if there is an obstacle S such as a futon or a human body on the lower side of the lower half of the bed, as shown in FIG. Since the member 50 is supported by the engaging member 40 so as to freely rotate upward, the actuating member 50 and the bed upper half supporting member 60 and the bed upper half include the drive shaft 20 and the engaging member. Regardless of the actuation of 40, it stays in its position 50c without further descending. Therefore, since the upper half of the bed is not forcibly lowered, it is possible to avoid the occurrence of unexpected accidents or troubles due to human limbs being caught or obstacles.

Further, in the device of the present invention, the motor 33 is connected to the timer device T, and the motor 33 is actuated at the arrival of the preset wake-up time to rotate the bed upper half support member 60. It is also possible to use it as a so-called wake-up device that lifts up and performs reverse rotation after a predetermined operation time to restore the upper half support member 60 to a horizontal state.

FIG. 5 shows an operation example of this wake-up device. The wake-up time is set to 7:00 am and the operating time is set to 15 minutes by the timer device 15 in advance. When the wake-up time comes, the motor 33 operates and the drive shaft 20 rotates. Then, the bed upper half supporting member 60 of the wake-up device is rotated by a predetermined angle via the engaging member 40 and the actuating member 50 formed integrally with the drive shaft 20, and the upper half of the bed is lifted and raised. Becomes Then, after the rising state is maintained for 15 minutes, the motor 33 starts reverse rotation, the drive shaft 20 reversely rotates, and the bed upper half supporting member 60 is tilted to restore the original horizontal state.

[0023]

[Effect of device]

 As shown and described above, the device of the present invention does not require a large and complicated mechanism under the bed, is mechanically simple, and can be used especially on a tatami mat of a general household. In addition, according to this invention, when the upper half of the bed is lowered, if there is an obstacle at the lower part of the upper half of the bed, the upper half of the bed will not be forcibly lowered further. It is safe even in families with old people and children.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an example of a bed provided with a standing device of the present invention.

FIG. 2 is a plan view of the standing device shown in FIG.

FIG. 3 is a perspective view showing a main part thereof.

FIG. 4 is a cross-sectional view showing its operating state.

FIG. 5 is a flowchart showing an operation example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Standing device 11 Base frame 20 Drive shaft 30 Drive part 40 Engaging member 41 Engaging part 45 Actuating member support part 50 Actuating member 52 Engagement rear end 60 Bed upper half supporting member B1 Bed upper half

Claims (1)

[Scope of utility model registration request] 1. A base frame mounted on the lower part of the bed, a drive shaft installed at a substantially boundary position between the upper half part and the lower half part of the bed of the base frame, and the drive shaft rotatable in a forward and reverse direction. A driving unit that moves, an engaging member that is integrally provided on the driving shaft, and an actuating member that engages with the engaging member and is axially supported by the engaging member so as to freely rotate upward. A bed upright device comprising a bed upper half supporting member pivotally supported by the base frame and rotatable between the horizontal position and the upright position by the actuating member.