JP2001017481A - Motor-operated adjustment drive unit for slatted wooden flooring - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a motor-operated adjustment drive unit having a detaching lever to enable transmission of further larger force, which can be installed on an existing metal fitting. SOLUTION: This motor-operated adjustment drive unit for slatted wooden flooring has at least one shaft 2 rotatably supported in a drive unit housing, an installation lever for a placing surface part of the slatted floor installed on the shaft 2 to be without rotating outside the drive unit housing, and a detaching lever installed on the shaft 2. This detaching lever receives action by a slide body 5 of a motor disposed in the drive unit housing for rotation of the shaft 2 and rising operation of the installation lever. The detaching lever is formed to comprise three parts of a coupler 6 installed on the shaft 2, a pressure absorber 7 supported by the coupler to be capable of oscillating to receive action by the slide body 5, and a pawl 8 capable of engagement and disengagement which is supported by the pressure absorber 7 to be capable of oscillation for disengageable coupling of a motion rigid body between the pressure absorber 7 and the coupler 6 to cooperate with the coupler 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention relates to at least one shaft rotatably supported within a drive housing, a floor surface portion of the floor being mounted so as not to rotate and being external to the drive housing. And a release lever attached to the shaft, the release lever being actuated by a sliding body of an electric motor disposed in the drive housing for rotation of the shaft and swinging of the installation lever. And a motorized adjustment drive for the medical floor of medical and nursing beds.

[0002]

2. Description of the Related Art Such a motor-driven adjusting drive is described in DE-A-29601605.5 and DE-A-29802463.2.
It is known from the specification and has proven to be excellent in experience.

[0003] However, in the case of the release lever, these adjustment driving devices cannot be equipped with these levers later, and are mounted on the shaft by a support bush before the adjustment bracket is mounted, and fixed to the shaft by the support bush. The fact that it has to be done presents certain disadvantages and, due to the structure of the release lever, allows only a certain amount of force transmission.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a motorized adjustment drive which has a release lever which can be retrofitted to existing fittings and which allows greater force transmission. The aim is to provide a simple alternative.

[0005]

According to the present invention, this problem is solved as follows. That is, the release lever comprises a coupler mounted on the shaft, a pressure absorber pivotally supported therein and acted on by a sliding body, and a moving rigid body between the pressure absorber and the coupler, which is detachable. From a mating and releasable pawl pivotally supported on the pressure absorber for coupling and cooperating with the coupler, 3
It is formed to consist of two parts.

The dependent claims contain advantageous features of the arrangement which constitute an advantageous and advantageous variant of the solution to the problem.

[0007] The motorized drive for the floor is designed simply and at a favorable cost, and its claws can be mounted as a retrofit set on existing fittings, ie on existing shafts. Yes, in this configuration set, the fitting can be welded to the shaft by a welding arch surrounding a portion of the shaft. A release lever formed from three parts is provided for the purpose of a force-transmitting connection by means of a meshable and releasable pawl between its coupling mounted on the shaft in the desired manner and the pressure absorber which is acted on by the slide by the motor. And in its positive connection can be easily removed by emergency means for emergency removal.

After being removed, the pressure absorber is again pushed back to its initial position by the return of the slide by a spring. Manual engagement of the pressure absorber by lifting the sawboard is unnecessary.

With these three components, the release lever maintains a very high force transmission and can therefore be used even under heavy loads.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings.

A motorized drive for the floor is mounted in the drive housing 1 so as not to rotate therethrough and outside the drive housing 1 on the floor surface (head or leg) of the floor. Part) has at least one rotatably supported horizontal axis 2 with a setting lever 3. A release lever 4 is mounted on the shaft 2 and is acted upon by a sliding body 5 of the electric motor arranged in the drive housing 1 for rotation of the shaft and swinging of the mounting lever up.

The release lever 4 includes a coupler 6 mounted on the shaft 2, a pressure absorber 7 slidably supported thereon and acted on by a slide 5, and a coupling between the pressure absorber 7 and the coupler 6. Formed in three parts from a mating and releasable pawl 8 pivotally supported by a pressure absorber 7 and cooperating with a coupler 6 for a moving rigid and removable connection therebetween. I have. Therefore, pawl 8
It is inserted and connected as a connecting member between the coupler 6 and the pressure absorber 7.

A pressure absorber 7 is provided with a nip 8 around a pivot axis 9 in a coupler 6 extending parallel to the axis 2.
Are pivotally supported about a pivot axis 10 in a pressure absorber 7 extending parallel to the axis 2; and around the two pivot axes 9, 10 respectively. Leg spring 1 cooperatively operated by force coupling to pawl 7 and pawl 8
1, 12 are arranged, the springs being supported by their legs on the edges and edges of the three release lever parts 6, 7, 8 and in the holes. The coupler 6 has a locking angle 13
, And the pawl 8 having the pawl angle 14 is engaged in the locking angle.

The coupler 6 is attached to the shaft 2 by welding by means of a partially circular welding arch 15; at the end of the coupler 6 remote from the shaft 2, a coupling formed by an angled release. The stop angle 13 extends and between the welding arch 15 and the stop angle 13 is a support hole 16 for receiving the swing axis 9 for the pressure absorber 7.

The pawl 8 shows a cornered basic form with a support hole 17 in the angular range for its pivot axis 10 in the pressure absorber 7 and is spaced apart from the support hole 17 by a basic form angle. Angle 13 of the coupler 6
There is a pawl angle 14 which co-operates with.

The pressure absorber 7 has a triangular basic shape with a pressing pin 18 which is at a triangular angle and cooperates with the slide 5, and is provided at a second triangular angle for its pivot axis 9 in the coupler 6. It has a support hole 19 provided and a second support hole 20 cut out between the pressing pin 18 and the support hole 19 for the pivot axis 10 of the pawl 8.

The pressure absorber 7 comprises two parallel plate parts 7a with support holes 19, 20 drilled therein and a pressing pin 18 for connecting the two plate parts 7a at a triangular corner at a distance. Is formed by

The pawl 8 has a support hole 17 formed in both U legs 8a and both open U remote from the support hole 17.
It consists of a piece of U with a claw angle 14 formed by the leg angles.

The coupler 6 has a welding arch 15 provided at the leg end of the U leg 6a, a support hole 16 and a locking angle 13 provided at the other U leg end and facing the welding arch 15.
And is formed by a piece of U portion with

The pawl 8 is an operating member such as a pull cable or the like led out of the drive housing 1 to disengage the pawl 8 from the rocking function position which connects the pressure absorber 7 and the coupler 6 in motion. 21.

FIG. 1 of the drawings shows the initial position of the adjusting drive by means of a motor, in which the slide 5 of the motor is retracted and the release lever 4 is in its own rigid position. The pawl 8 is locked in the coupler 6 and holds the pressure absorber 7 rigidly with respect to the coupler 6, and the release lever 4 is slidable by the pressure pin 18 of the pressure absorber 7. 5 and the setting lever 3 is lowered and supports the placing surface part 3 in a horizontal position.

FIG. 2 shows the position of the setting lever 3 and the resting surface part 3 in the raised and swung position, in which the slide 5 is pulled out by a motor and is itself a moving rigid jaw. 8, the pressure lever 7 and the coupler 6 are connected and held). The release lever 4 is rotated.

In order to manually lower the surface part 3 for emergency disconnection in the event of a power supply failure or failure in the motor,
The pawl 8 is unlocked via the pulling cable 21, wherein the pawl swings about its axis 10 in the pressure absorber 7 relative to the slide 5 and, as shown in FIG. The angle 14 is the locking angle 13 of the coupler 6
Get out of The pawl angle 14 contacts the outside of the coupler 6 at this time.

At this time, the coupler 6
Since the connection between the pressure absorber 7 and the pressure absorber 7 is disconnected, the shaft 2 is connected to the installation lever 3 and the coupling, although the sliding member 5 is kept pulled out and is in contact with the pressure absorber 7. With 6, it is returned to its initial position according to FIG. 1 (which must be held by hand) and rocked. Sliding body 5
When retracted, the leg spring 11 swings the pressure absorber 7 back about its axis 9 in the direction of the slide 5, and the clasp 8 is again locked in the coupler 6 by its spring 12,
And the initial position of FIG. 1 has been achieved. When the slide 5 is returned, the shaft 2 automatically returns and swings together with the coupler 6 and the installation lever 3, and the placing surface portion 3 descends.

At this time, the upward swing can be performed again. During normal descent without emergency removal, release lever 4
Remains rigid itself and swings back when the slide is retracted.

[Brief description of the drawings]

FIG. 1 shows, in an initial position of the release lever, a motor-controlled adjusting drive having a shaft supported in a drive housing and a three-part release lever mounted thereon and a sliding body driven by a motor for operating the shaft. It is a side view.

FIG. 2 is a side view showing the adjustment driving device at a release lever position where the adjustment driving device is swung.

FIG. 3 is a side view showing the adjustment drive device in a release position of a release lever.

FIG. 4 is a side view of the coupler of the release lever.

FIG. 5 is a side view of the pawl of the release lever.

FIG. 6 is a side view of the pressure absorber of the release lever.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 drive housing 2 shaft 3 installation lever 4 release lever 5 sliding body 6 coupler 7 pressure absorber 8 ninth 9 swing axis 10 swing axis 11 leg spring 12 leg spring 13 locking angle 14 nail angle 15 welding arch 16 support Hole 17 Support hole 18 Press pin 19 Support hole 20 Support hole

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Andreas Reutel Bielefeld Drudt Mündel Schütlässe 21

Claims (10)

[Claims] At least one axle rotatably supported within the drive housing, an installation lever mounted for rotation and for a floor surface portion of the log floor outside the drive housing. A release lever mounted on the shaft, the release lever being acted upon by a sliding body of an electric motor arranged in the drive housing for rotation of the shaft and swinging of the mounting lever up; In a motorized drive for the floor, a release lever (4) has a coupler (6) mounted on a shaft (2), which is pivotably supported and slides (5).
Pressure absorber (7) acted upon by the pressure absorber (7) and the pressure absorber (7) for a moving rigid body and a removable connection between the pressure absorber (7) and the coupler (6). A motor-driven adjusting drive for a sawboard, characterized in that it is formed in three parts from a mating and releasable pawl (8) which is supported and cooperates with a coupler (6). 2. A swivel (8) having a pressure absorber (7) about an oscillating axis (9) in a coupler (6) extending parallel to the axis (2). ) Are supported pivotably about a pivot axis (10) of a pressure absorber (7) extending parallel to and, respectively, around both pivot axes (9, 10), Leg springs (11,11) cooperating with the pressure absorber (7) and the pawl (8)
12. The adjusting drive as claimed in claim 1, wherein (12) is arranged. 3. The coupling (6) has a locking angle (13) into which a pawl (8) having a pawl angle (14) engages. The adjustment drive device according to claim 1 or 2. 4. A coupling (6) having a partially circular welding arch (15) is attached to the shaft (2) by welding and has an angled end at the end remote from the shaft (2). For the pressure absorber (7) in the support hole (16) between the welding arch (15) and the locking angle (13), having a locking angle (13) formed by the release of 4. The swing axis (9) is accommodated.
Adjustment drive according to one of the preceding claims. 5. An angled base with a support hole (17) in the angular range for its pivot axis (10) in a pressure absorber (7), and a support hole (17). )
5. The adjusting drive according to claim 1, further comprising a pawl angle (14) cooperating with the locking angle (13) of the coupler (6). . 6. The triangular basic form in which the pressure absorber (7) is at a triangular angle and has a pressing pin (18) which cooperates with the slide (5), its pivot axis in the coupler (6). 9) the support holes (1
9) and a second support hole (20) for the pivot axis (10) of the pawl (8) between the pressing pin (18) and the support hole (19). Items 1 to 5
Adjustment drive according to one of the preceding claims. 7. A pressure absorber (7) comprising two plate parts (7a) with support holes (19, 20) drilled therein,
7. The adjusting drive according to claim 1, further comprising a pressing pin (18) for connecting the two plate parts (7 a) at a distance in a triangular corner. 8. 8. The pawl (8) is formed by a support hole (17) drilled in both U-legs (8a) and both free U-leg ends remote from the support hole (17). Claws (1
8. The adjusting drive according to claim 1, wherein the adjusting drive is configured as a one-piece U-section with 4). 9. A coupling (6) comprising a welding arch (15) opened at the leg end of the U-leg (6a), a locking angle (13) opened at the other U-leg end and a welding arch. (15)
9. The adjusting drive according to claim 1, wherein the drive is formed by a piece of U-section with a support hole (16) between the locking angle (13) and the locking angle (13). 10. The pawl (8) is disengaged from the drive housing (1) to disengage the pawl (8) from the oscillating function position which connects the pressure absorber (7) and the coupler (6) in motion. Operating member such as a pull cable led to the
10. The adjusting drive according to claim 1, wherein the drive is connected to 1).