WO2010020091A1

WO2010020091A1 - An actuator used for adjusting component of furniture which is used for seating or leaning

Info

Publication number: WO2010020091A1
Application number: PCT/CN2008/072058
Authority: WO
Inventors: 曾文礼
Original assignee: 敏华家具制造(惠州)有限公司
Priority date: 2008-08-20
Filing date: 2008-08-20
Publication date: 2010-02-25

Abstract

An actuator is used for adjusting component of furniture which is used for seating or leaning. The actuator includes a motor (7), a lead screw (11) and a slider (14) which can be sliding linearly on the lead screw (11) to and fro. A screw (141) is fixed in the slider (14) which is equipped on the lead screw (11) through screw thread, and then the slider (14) is actuated to and fro.

Description

A driver for adjusting furniture parts for sitting and leaning

The present invention relates to a drive for adjusting furniture components for sitting and leaning, particularly for seating and sofas.

Background technique

Such a drive is known from DE-GM 89 03 603, in which a mechanism consisting of a gear connected to the main shaft and a worm meshing gear is disposed in the outer casing. The worm is driven by an electric motor that is fastened to the side of the casing. The nut to which the riser capable of moving in the riser receiving means is fastened is guided in a non-twist manner on the main shaft in the riser receiving means projecting from the outer casing. The riser can be easily adjusted if the drive is pivotally secured via a receiving device located on the housing and the lift tube is coupled to a adjuster for the strip base.

A particular disadvantage of such a drive is that its total length is determined by the necessary minimum length for guiding the riser in the riser receiving device plus the lift path of the riser. This minimum length is necessary to reliably prevent the riser from bending over the long travel path. This means that it is necessary to lengthen the riser receiving device while increasing the stroke length of the riser. This makes it necessary to manufacture housings of different lengths with riser receiving devices within certain limits, thereby rendering the manufacture of the drives significantly more expensive.

In addition, such drives cannot be used inconspicuously in confined spaces, as is the case with adjustable seating and leaning furniture.

A regulator is known from DE 37 34 922 A1 which is designed to be adjustable in the longitudinal direction by means of a nut/spindle mechanism on a special section tube. Located in a special section The nut parts in the tube are designed as a single piece, including a sliding shell partially surrounding the special section tube and a strip directed in the groove in the special section tube. To this end, a web that passes through the grooves in the special section tube and connects the parts is provided between the nut and the sliding shell. Since the sliding shell layer only partially surrounds the special section tube, an additional sliding support is provided, the sliding shell layer and the sliding support being screwed together. Numerous individual parts mean that assembly involves a lot of effort and at the same time leads to increased costs.

Purpose of the invention

SUMMARY OF THE INVENTION An object of the present invention is to provide a drive for adjusting furniture components for sitting and leaning, which is inexpensive and easy to assemble and whose stroke can be independently adjusted, in order to overcome the deficiencies of the above-mentioned techniques. In order to achieve the above object, the present invention adopts the following technical solution: The driver for adjusting the furniture component for sitting and leaning, including the motor disposed in the casing of the casing motor, is connected to the screw by one end of the rotating shaft of the motor. Gear meshing, and a slider that is linearly movable with the screw rod, and the slider is provided with a driving nut which can be screwed on the screw rod so that the slider can move linearly, the slider One or more positioning slots are disposed at a position parallel to the nut, and a guide rail is disposed correspondingly in the positioning slot, and one end of the rail is inserted into the rear fixing buckle, and is fixedly fixed on the box body, and the other end of the rail is fixed at a top end stop Chip. A front fixing buckle is further disposed between the top end piece and the guide rail.

The gear that meshes with the motor shaft is sleeved with one non-standard bearing at one end, and the other end is provided with another bearing, and the screw rod is screwed in the gear. The slider is provided with a connecting device that can cooperate with an external transmission. The transmission device is a rocker and a connecting rod that cooperates with the rocker to rotate around its end point. The connecting rod is connected to a piece of furniture that is to be adjusted for sitting and leaning.

The back of the box body is disposed at a side away from the screw rod, and the back cover is provided with a pair of ears which are fixedly connected to the back cover of the back frame, and the ear piece is a pair of parallels having a certain distance. , the center has a mounting hole.

The center plate is provided with a driver control function in the box body, and a plug buckle for fixing the plug is disposed at the center hole of the center plate of the box body.

The side of one of the guide rails is provided with a groove, and the groove can accommodate a start and stop switch that can control the operation of the motor.

The rail groove is provided with an end cover that can close the groove.

Through the above technical solutions, the invention has the following beneficial effects:

The limited interior space of the furniture is more adjustable, and the drive does not need to be moved. The length of the stroke is completely independent of the size of the casing of the drive, making it easy to manufacture and assemble cheaply.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic perspective view of the actuator of the present invention for adjusting the furniture components for sitting and leaning.

Figure 2 is a front elevational view of the drive of the present invention for adjusting furniture components for sitting and leaning. Figure 3 is a cross-sectional view of the driver of the present invention for adjusting furniture components for sitting and leaning. Figure 4 is a cross-sectional view of the drive of Figure 2 of the present invention for adjusting the seat member for sitting and leaning.

Figure 5 is a cross-sectional view taken along line B-B of Figure 2 of the present invention for adjusting the seat of the furniture member for sitting and leaning.

Figure 6 is a drive for adjusting the furniture component for sitting and leaning according to the present invention. C section view.

Figure 7 is a first perspective view of the driver and transmission and the rear cover blank for adjusting the furniture components for sitting and leaning.

Figure 8 is a cross-sectional view taken along line D-D of Figure 7.

Figure 9 is a schematic view of the second connection of the driver and transmission and the holding arm for adjusting the furniture components for sitting and leaning according to the present invention.

Figure 10 is a cross-sectional view taken along line E-E of Figure 9.

detailed description

The invention will now be further described in detail with reference to the accompanying drawings.

As shown in FIG. 1 to FIG. 8, the driver for adjusting the furniture component for sitting and leaning includes a motor 7 disposed in the motor cover 6 of the casing 3, and one end of the rotating shaft is connected to the screw 11 by a motor. The gear 9 is meshed, and a slider 14 is provided for reciprocating linear motion with the screw rod. The slider is provided with a driving nut 141 which can be screwed on the screw rod so that the slider can move linearly. Two positioning slots 142 are disposed on the slider in parallel with the nut. Each of the positioning slots is provided with an upper rail 18 and a lower rail 20, and the upper rail side is provided with a recess 181, and the recess can be accommodated therein. There is a travel switch 15 for controlling the operation of the motor, one end of the two rails is fixed on the box body, and the other end of the rail is fixed with a top end stop 12, and a front fixing buckle 13 is further disposed between the top end piece and the guide rail; The gear that meshes with the motor shaft is sleeved with one non-standard bearing 8 at one end, and the other end is sleeved with another bearing 10, and the screw rod is screwed in the gear.

Provided on the slider is a connecting device 143 that can cooperate with an external transmission, the transmission device is a rocker 22 and cooperates with the rocker to rotate around its end A connecting rod 23 that is connected to the furniture component for sitting and leaning that needs to be adjusted. One end of the rocker is rotatably connected to the connecting rod, and the other end is fixed on the connecting device on the slider. The connecting device is a protrusion on the slider, and a through hole is formed in the middle of the protrusion, as shown in FIG. 7 and FIG. . In addition, a rear cover 2 is disposed at one end of the box away from the screw rod, and an ear piece 24 is disposed on the back cover, and the ear piece is matched with the back cover piece 1 fixed on the frame, and the ear piece has a certain A pair of parallel distances each have a mounting hole 25 in the center. The back cover ear piece is coupled with the back cover block, and the other side of the back cover block is fixedly connected with the furniture; in addition, a center plate 4 for controlling the drive is disposed in the box body, and the center plate lead hole is arranged on the box body A plug clip 21 having a fixed plug is disposed, and the guide rail groove is provided with an end cover 16 that can close the recess.

When assembling, the screw 11 is screwed into the gear 9, and then the non-standard bearing 8 is loaded into the gear end bearing position, and the bearing 10 is loaded into the gear small end bearing position; then the obtained assembly is taken from the left hole of the casing 3 Insert into the box, then cover the back cover 2, then put the rear fixing buckle 19 into the screw, and then screw the slider 14 into the screw; then install the travel switch 15 in the groove of the upper rail 18 and Locking, cover the end cap 16; then pass the integral assembly through the slider 14, and one end of the lower rail 20 passes through the positioning groove of the slider, and then they are simultaneously clamped with the rear fixing buckle 19, and then inserted into the cabinet together And lock the four screws; then, the front fixing buckle 13 is snapped into the other end of the upper rail 18 and the lower rail 20, and then the top flap 12 and the front fixing buckle are locked on the guide rail; The board 4 is inserted into the box body, and then the motor 7 is locked on the box body; then the motor housing 6 is mounted on the box body, and then the plug clip 21 is locked on the box body; finally, the back cover flap 1 is stuck. Into the ear rest of the back cover.

When in use, the motor is started, the motor rotates, and the rotating shaft drives the screw to rotate. Under the action of the screw rod, the nut on the slider is translated on the screw rod, so that the slider realizes translation on the guide rail, Two stroke switches are disposed in the groove of one of the guide rails, and the two stroke switches control the operation of the motor to control the translational distance of the slider, and one end of the transmission device is fixedly connected with the slider, so that the slider is At the same time of translation, the rocker movement of the transmission device is driven, and the movement of the rocker causes the connecting rod to rotate within a certain angle, thereby driving the leaning portion of the furniture to be adjusted to move.

Of course, the driver for adjusting the furniture component for sitting and leaning can also be fixed to the connecting device 143' of another position on the slider, as shown in FIG. 9 and FIG. Compared with the first embodiment, the device is also a small protrusion with a through hole in the middle, but not a piece of iron piece extending from the connecting rod is connected with the middle position of the slider, but the rocker is directly at the middle position of the slider. connection.

Of course, the guide rails may also be one instead of two, and the cross-sectional shape of the guide rails may also be circular or square. On the surface of the guide rails, some ridges for facilitating cooperation with the sliders may be provided, corresponding to the settings in the sliders. Grooved for a more stable fit.

Compared with the prior art, the invention can adjust the lifting and lowering of the leaning portion of the furniture by sliding the slider on the screw rod, and relatively speaking, the adjustable in the limited internal space of the furniture is large, and the driver is not It is necessary to move the stroke length completely independent of the size of the drive's cabinet, making it easy to manufacture and assemble cheaply.

Claims

Claim

1. A driver for adjusting furniture components for sitting and leaning, including being disposed in a cabinet

(3) The motor (7) in the motor cover (6) is meshed by a gear (9) connected to the lead screw (11) at one end of the motor drive shaft, and a slider (14) that cooperates with the screw rod for linear motion. The slider is provided with a driving nut (141) which can be screwed on the screw rod so that the slider can move linearly, and the slider has one or more parallel positions with the nut. One or more positioning slots (142) are correspondingly provided with guide rails (18) and (20), and one end of the rail is fixed on the box body, and the other end of the rail is fixed on a top end flap (12).

2. The driver for adjusting a sitting and leaning furniture part according to claim 1, wherein: a front fixing buckle is disposed between the top end piece fixed to the leaning frame and the guide rail ( 13).

3. The driver for adjusting a sitting and leaning furniture component according to claim 1, wherein: the gear that meshes with the motor shaft is sleeved with a non-standard bearing (8) at one end, and the other end The sleeve is provided with another bearing (10), and the screw screw is arranged in the gear.

4. The driver for adjusting a sitting and leaning furniture component according to claim 1, wherein: said slider is provided with connecting means (143) engageable with an external transmission.

5. The driver for adjusting a sitting and leaning furniture component according to claim 4, wherein: said transmission is a rocker (22) and cooperates with said rocker to extend around its end A rotating link (23) that is connected to the furniture component for sitting and leaning that needs to be adjusted.

6. The driver for adjusting furniture parts for sitting and leaning according to claim 1, wherein: the one end of the box body away from the screw rod is provided with a back cover (2), and the back cover is provided with a back cover The ear piece (24) is matched with the back cover blank (1) fixed to the reclining frame. The ear piece is a pair of parallel with a certain distance, and has a mounting hole (25) at the center.

7. The driver for adjusting a furniture component for sitting and leaning according to claim 6, wherein: said center plate provided with a driver control function in the casing

(4) A plug clip (21) for fixing the plug is disposed at the lead hole of the center plate of the box body.

8. The driver for adjusting furniture components for sitting and leaning according to claim 6, wherein: the rear cover tab and a rear cover flap for externally fixing the driver to the furniture The holes are mated to each other.

9. The driver for adjusting a sitting and leaning furniture component according to any one of claims 1 to 8, wherein: a side of said one rail is provided with a groove (181), wherein the groove can accommodate There is a start and stop switch (15) that controls the operation of the motor.

10. A drive for adjusting a seating and reclining furniture component according to claim 9, wherein: said rail groove is provided with an aluminum lever cover (16) that encloses the recess.