JP2567955Y2 - Nursing equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nursing care device used when a patient or the like is lifted from a bed and moved, and more particularly to a nursing care device having a lower limit switch device for setting a lower limit of belt rewinding.

[0002]

2. Description of the Related Art A device for lifting and moving a cared person is composed of a rail and a main body of the care device running on the rail. This nursing care device main body has a winding drum or a winding pulley, and a winding rope such as a wire rope or a flat belt is wound around the winding drum, one end of which is attached to the winding drum, and the other end is covered with the winding drum. A hanger for supporting the caregiver is attached, a drive motor for driving the winding drum is controlled to move the hanger up and down, and wheels for traveling on rails and a traveling motor for driving the wheels are provided. The rail is stretched around the ceiling of the house when the care recipient's movement range is wide, and is mounted on an arch-shaped pedestal that can be easily assembled when moving in a limited range such as a bedroom.

[0003] The nursing care device using this arch type gantry,
It is configured as shown in FIG. FIG. 4 shows a front view of the nursing care device using the arched gantry.
Is a rail, and both ends are erected on the upper ends of a pair of columns 2, 2 '. The lower ends of the columns 2, 2 'are stably supported by a support 4 extending forward and rearward in the drawing with the columns 2, 2' as the center. Numeral 3 is a care device body, and numeral 5 is a cover for a rail mounting portion, which is made of synthetic rubber or the like and covers a mounting portion between the rail 1 and the support 2. The care device body 3 has a take-up pulley inside, a flat belt 6 is wound around the take-up pulley, the start of winding is fixed to the pulley, and the hanger 7 is attached at the end of winding. The winding pulley is driven to rotate by a drive motor with a brake. In addition, the care device body 3
On the upper surface side of the car, a running wheel 8 is provided. The wheel 8 is driven by a running motor with a brake, and
Along the rail 1. Cared person is flat belt 6
And is hung on the hanger part 7 via. Reference numeral 9 denotes an operation switch having a push button switch for starting and stopping the drive motor and the running motor. The care receiver puts his / her body on the suspension belt, and operates the operation switch 9 to move up and down or left and right. You can move in your own direction. 10
Supplies power to the care device main body 3 via a power cord line.

FIG. 5 and FIG. 6 are structural views of the body 3 of the care device.
FIG. 5 is a cutaway front view of a main part, and FIG. 6 is a top view of the same. In these figures, reference numeral 30 denotes a reduction gear having a drive gear 31;
It is connected to the output shaft of a drive motor 32 with a brake. A first mounting plate 35 is mounted on the output shaft side end of the speed reducer 30 with bolts 36. Further, as shown in FIG. 5, the first mounting plate 35 has its bent upper plate fixed to the frame of the apparatus main body with bolts 36.

A through hole is formed in a predetermined portion of the first mounting plate 35, and a driven gear 38 is axially mounted on the through hole via a ball bearing 37 with a flange. The driven gear 38 meshes with the drive gear 31.

Further, as shown in the figure, a second mounting plate 39 is arranged side by side with the first mounting plate 35. That is, the bent portion of the second mounting plate 39 is welded and integrated with the upper bent end portion of the first mounting plate 35, and the bolt is held in a state where the cylindrical positioning collar 40 is sandwiched between the free end portions of the flat plate portions. 33 is fastened with a nut 34. A through hole is formed in a predetermined portion of the second mounting plate 39, and an output shaft 38a of the speed reducer 30 formed integrally with the driven gear 38 via a ball bearing 37 with a flange is bored in the through hole. I do. A take-up pulley 43 is fitted on the output shaft 38a. The outer end plate 44 of the winding pulley 43 is fastened with bolts 45. The start end of a flat belt 6 made of nylon or the like is fixed and wound around the take-up pulley 43, and the hanger 7 is attached to the end. As shown in FIG. 6, a shaft 46 is pivotally mounted between the first mounting plate 35 and the second mounting plate 39 in the care device main body 3. A meshing limit switch gear 47 is provided. The shaft bar 46 integrally forms a limit switch shaft 48 coaxially with the second mounting plate 39. Limit switch shaft 4
8 is provided with a feed screw, and the dock 49 is screwed. Further, the guide pins 50 erected on the second mounting plate 39 are
And the dock 49 is moved left and right in the figure by rotation of the limit switch shaft 48. Then, when the hanger portion 7 suspended on the flat belt 6 reaches the lower limit or the upper limit position, the dock 49 reaches the predetermined positions corresponding to the lower limit or the upper limit position, and operates the limit switches 51 and 51 ', These limit switches 51 and 5
The drive motor 32 is stopped by a command from the control unit having received the signal 1 ', and the lifting operation or the lifting operation of the hanger unit is stopped. In FIG. 5, reference numeral 52 denotes a support member, 53 denotes a hanging bracket, and 54 denotes a nut for fastening the supporting member to the hanging bracket 53.

[0007]

The lower limit switch device shown in FIG. 6 has been proposed by the applicant of the present invention, but is formed by meshing a driven gear provided on an output shaft of a drive motor with a driven gear. Since the limit switch shaft is rotated and the dock is moved by the rotation of the shaft to operate the upper limit switch or the lower limit switch, it is good if the mounting space for the limit switch can be secured in the care device body,
A battery is accommodated in the nursing device main body, and the drive motor or the traversing motor is driven by the battery without using an external power supply. It cannot be easily applied to a so-called battery drive system.

In addition, since the lower limit switch is operated according to the amount of movement of the dock in proportion to the number of rotations of the winding drum, the position of the dock is indirect, and if the belt has been used for a predetermined period and the length of the belt has been increased, the position of the dock is changed. Need to adjust. And other issues remained. Therefore, an object of the present invention is to provide a nursing care device which is a lower limit switch device which does not take up installation space and which has such a limit switch which does not require dock adjustment.

[0009]

Means for solving the above-mentioned problems in the present invention include a care device main body for lifting a cared person, a hanger portion for carrying the cared person, the care device body and the hanger. A flat belt connecting the parts, and the nursing care device main body is provided via a speed reducer,
In a care device including a winding drum that winds the flat belt and a drive motor that rotates the winding drum via the speed reducer, the flat belt is inserted, and the number of windings of the flat belt changes. When the flat belt reaches a set lowering lower limit by the limit switch operating means, a lower limit switch is operated to stop the drive motor. Further, the above-mentioned limit operating means is provided with a spring urging means which always urges in the direction of the center of the winding pulley so that the lower limit switch operates even when the flat belt is slackened.

[0010]

Since the present invention is constructed as described above, when the flat belt wound on the take-up pulley is gradually unwound, the winding layer of the flat belt is reduced, and the portion led out from the main body cover Moves toward the center of the winding pulley.
Along with this movement, the moving bracket of the switch operation unit, which guides the flat belt through it, also moves, and operates the lower limit switch.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings. 1A and 1B are explanatory views of the lower limit switch device of the present invention. FIG. 1A is a plan view of a main part, and FIG.
-Shows the X-ray sectional arrow view. FIG. 2 is an explanatory view of an arrangement of the lower limit switch device in the care device main body, and FIG. 3 is a cutaway side view of a main part of the care device main body.

In these figures, parts having the same names or the same functions as those in FIGS. 4 to 6 are denoted by the same reference numerals, and description thereof is omitted.

FIG. 2 shows a main body 3 of a care device equipped with a battery.
In the plan view of the main components in the drawing, Ba ₁ and Ba ₂ are 2
In distributed battery locations, battery Ba ₁ in the width direction of the left side corner, also the battery Ba ₂ is disposed in the longitudinal direction of the right side corner. Reduction gear 30 and a drive motor with brake 32 is arranged in the longitudinal direction on the side opposite to the battery Ba ₂ of rightward corner. Reference numeral 100 denotes a lower limit switch device, which is disposed below the winding pulley 43 (FIG. 3) between the batteries Ba ₁ and Ba ₂ . T indicates a lead portion of the operation switch 9.

Next, the configuration of the lower limit switch device 100 will be described based on one embodiment shown in FIG. The lower limit switch 100 includes a switch operation unit 110 as a limit switch operation unit and a switch mounting unit 120 for mounting the limit switch. The switch operation unit 110 includes a moving bracket 111 and the moving bracket 11.
1 and a belt guide 112 having an insertion opening 112 'through which the flat belt is inserted, and guide pins 113, 1 for guiding the movement of the moving metal fitting 111 in a direction perpendicular to the plane of the flat belt.
14, a supporting member 115 slidably supporting the guide pin 113, an operating portion 116 provided in the moving direction of the moving metal member 111, and the moving metal member 111. Return spring 104 urged in the linear direction)
And a spring mounting portion 117 for mounting the same. The guide pin 114 is slidably supported by a switch mounting portion 120 described later. Reference numeral 101 denotes a main body cover, and a belt outlet of the main body cover 101 is provided with a belt outlet 102. Reference numeral 103 denotes a belt cover, which covers the belt outlet 102 and moves together with the moving fitting 111 to constantly close the outlet 102.

The switch mounting section 120 has a limit switch mounting plate 121 and pin guides 122 and 123 provided on the mounting plate 121.
The movable pin 124 is movably supported by the movable guide pin 123 and the movable guide pin 124, and a dock 125 is fixed to the movable pin 124 between the pin guide sections 122 and 123. One end of the movable pin 124 is opposed to the operating part 116 of the moving bracket 111, and a spring 126
Is always biased to the right in the figure. 127 is a lower limit switch, and one end of the operating rod 128 is connected to the dock 125.
The movable pin 124 moves to the left in contact with the inclined surface of
Lower limit switch 1 when 25 slopes are completely lifted
27 operates. Also, the limit switch mounting plate 121
Has a spring mounting portion 129 for slidably supporting the free end side of the guide pin 114 of the switch operation portion 110 and for mounting the return spring 104.

Next, the operation will be described. FIG. 3 shows a state in which the flat belt 6 is fully wound around the take-up pulley 43. When the flat belt 6 is unwound (rewinded) in the direction of arrow A from this state, a hanger portion 7 is attached to the tip of the flat belt 6. Since the cared person is hung, the flat belt 6 hangs vertically, and when the winding layer is reduced, the lead-out portion of the flat belt 6 gradually moves to the left side (in the direction of the arrow B) in the figure. FIG. 1
When the moving bracket 111 moves to the left as shown in FIG.
24, the movable pin 124 and the dock 125 are moved to the left side of the drawing. When the preset lowering lower limit is reached, the limit switch 127 operates to stop the drive motor driving the take-up pulley. Let it.

At this time, the movement of the moving bracket 111 is guided by the guide pins 113 and 114, and the flat belt 6 moves while being inserted through the insertion opening 112 '.
Is prevented from being twisted.

If, for some reason, the flat belt 6 is loosened without being lowered to the lower limit position, the moving metal member 111 is pulled by the return spring 104 to the left side in FIG. The lower limit switch 127 is operated as described above.

[0019]

[Effects of the Invention] The present invention provides a main body cover 101 as described above.
Guide the flat belt 6 to the part of the belt outlet 102 of
And a moving bracket 11 that moves following the movement of the flat belt.
1, the lower limit switch 127 is operated, so that the installation space is not required, so that a sufficient space for mounting the battery in the conventional care device main body can be secured, and this kind of battery-driven care device can be realized. .

Further, since the set lower limit operation position of the lower limit switch does not change even if the flat belt 6 is extended, it is not necessary to adjust the dock or the like.

Further, since the flat belt 6 moves while being guided by the moving bracket 111, the flat belt 6 is not twisted.

Further, when tension is not applied to the flat belt for some reason, the lower limit switch is operated, so that after the flat belt of the winding pulley is completely rewound, reverse winding does not occur. . It has the same effect.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a lower limit switch device according to an embodiment of the present invention. FIG. 1 (A) is a plan view of a main part. FIG.

FIG. 2 is an explanatory view of a plane arrangement according to an embodiment of the present invention;

FIG. 3 is a side view of a main part of one embodiment of the present invention.

FIG. 4 is an overall configuration diagram of an arched care device.

FIG. 5 is a sectional front view of a main part of a conventional care device.

FIG. 6 is a plan view of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Rail 2, 2 '... Prop 3. Nursing-apparatus main body 4 ... Support base 6 ... Flat belt 7 ... Hanger part 9 ... Operation switch 10 ... Power cord line 30 ... Reduction gear 32 ... Drive motor with brake 43 ... Winding pulley DESCRIPTION OF SYMBOLS 100 ... Lower limit switch device 101 ... Main body cover 102 ... Belt outlet 103 ... Belt cover 104 ... Return spring 110 ... Switch operation part 111 ... Moving bracket 112 ... Belt guide part 112 '... Insertion port 113, 114 ... Guide pin 115 ... Supporting bracket 116 ... Working part 117 ... Spring mounting part 120 ... Switch mounting part 121 ... Limit switch mounting plate 122,123 ... Pin guide part 124 ... Movable pin 125 ... Dock 126 ... Spring 127 ... Lower limit switch 128 ... Operation rod 129 ... Spring mounting part

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI B66D 1/38 B66D 1/38 Z 3/24 3/24

Claims (2)

(57) [Scope of request for utility model registration] 1. A care device main body for lifting a cared person,
A hanger portion for carrying the care receiver, a flat belt connecting the nursing device main body and the hanger portion, and a winding provided on the nursing device main body via a speed reducer and winding the flat belt A care device comprising a pulley and a drive motor for rotating a take-up pulley via the speed reducer, wherein a limit switch operating means is provided for inserting the flat belt and moving by changing the number of windings of the flat belt. A care device, wherein when the flat belt reaches a set lower limit by the limit switch operating means, a lower limit switch is operated to stop the drive motor. 2. The care device according to claim 1, wherein the limit switch operating means includes spring biasing means for constantly biasing the pulley toward the center of the winding pulley.