TWM570699U - Lifting mechanism after electric bed - Google Patents

Abstract

An electric bed is a bed frame set in a bed set. The set of decks includes a second panel, a third panel and a fourth panel that are movable to each other. The bed frame set has a chassis on which a moving frame combined with a second plate and a rear lifting mechanism are disposed. The rear lifting mechanism comprises: a lifting motor; a set of swing arms, each of which is pivotally connected to the fourth plate and the moving frame respectively; and a linkage structure comprising: a connecting rod and at least one The connecting rod is fixed to the supporting member, and the connecting rod is coupled with the movable frame to pivotally connect the two ends of the lifting motor, one of the two ends of the supporting member is pivotally connected to the third plate, and the other end is in a rolling contact relationship with the moving frame, which is effective Solve the shortcomings of the prior art regarding elastic fatigue.

Description

Lifting mechanism after electric bed

This creation relates to the lifting field of the bed, and in particular to the lifting mechanism of the rear half of the electric bed.

Known electric beds, such as Taiwan's No. 342674 and No. 382943, use a single motor with an elastic cable to perform the adjustment of the bed frame.

During the adjustment, the motor drives the front end of the bed frame to an angle, while the end of the elastic cable bed is arched to a certain height. Although easy to operate and easy to use. However, the elastic cord has the disadvantage of being elastic and fatigued.

Therefore, how to improve the structure of the electric bed has become an urgent problem to be solved in this creation.

In view of this, the main purpose of the rear lift mechanism provided by the creator of this case is to adopt the mechanical linkage structure and lift the rear half of the electric bed to effectively solve the drawbacks of the prior art regarding elastic fatigue.

Due to the above objectives, the electric bed of the present invention is a bed frame set on the back of a bed set. The set of decks includes a second panel, a third panel and a fourth panel that are movable to each other. The bed frame set has a chassis on which a moving frame combined with a second plate and a rear lifting mechanism are disposed. The rear lifting mechanism comprises: a lift motor; a set of swing arms, each of which is pivotally connected to the fourth plate and the movable frame respectively; and a linkage structure comprising: a connecting rod and at least one supporting member fixed on the connecting rod; the connecting rod cooperates with the moving frame The two ends of the support member are pivotally connected to the third plate, and the other end is in a rolling contact relationship with the movable frame.

After the lift motor is energized, the length extension action is performed, the angle of the tilt of the support member is changed, and the third plate is lifted to a certain angle with respect to the chassis, the fourth plate is pulled up and the swing arm is rotated relative to the movable frame to reach the support. The purpose and effect of high user calves.

In this way, the post-lifting mechanism of the present invention belongs to a mechanical linkage structure, which is sufficient to lift the second half of the electric bed, effectively solving the drawbacks of the prior art regarding elastic fatigue.

In order to make the above objects, features and advantages of the present invention more comprehensible, one or more preferred embodiments are described in detail with the accompanying drawings.

10‧‧‧Electric bed

11‧‧‧ head end

12‧‧‧End

13‧‧‧left side

14‧‧‧right

15‧‧‧ Bed frame set

20‧‧‧Bed board group

21‧‧‧ Hinges

22‧‧‧ first board

23‧‧‧Blocks

24‧‧‧ second board

26‧‧‧ third board

28‧‧‧ fourth board

30‧‧‧ Chassis

301, 302, 303‧‧ ‧ crossbar

304, 305‧‧‧ longitudinal rod

306, 307‧‧‧ Wheel

308‧‧‧ fixed seat

309‧‧‧Connecting seat

32‧‧‧ Back frame

34‧‧‧Mobile rack

341, 342, 343‧‧‧ crossbar

341A, 343A‧‧‧ fixed seat

344, 345‧‧ long track

346A, 346B, 346C‧‧‧ longitudinal rod

347A, 347B‧‧‧ short track

36‧‧‧ leg frame

36A‧‧‧ obtuse angle

36B‧‧‧ Height

38‧‧‧Combination

39‧‧‧ pivoting seat

40‧‧‧Leng Yangsheng Agency

50‧‧‧After ascending institution

52‧‧‧Electric motor

54‧‧‧ Telescopic rod

56‧‧‧ linkage structure

561‧‧‧ Connecting rod

562‧‧‧Support

563‧‧‧Roller

564, 581‧‧ ‧ joint seat

565‧‧‧ Force Department

58‧‧‧ swing arm

Figure 1 is a perspective view of a preferred embodiment of the electric bed of the present invention.

Figure 2 is a bottom view of the electric bed.

Figure 3 is a perspective view of the bed frame set.

Figure 4 is a perspective view of the chassis.

Figure 5 is a perspective view of the moving frame.

Figure 6 is an enlarged view of a portion of the bed frame set.

Figure 7 is a perspective view of another angle of the bed frame set of Figure 6.

Figure 8 is a schematic view of a partial electric bed in a flat state.

Figure 9 is a schematic view of a partial electric bed support state.

Figures 1 and 2 depict a preferred embodiment of the electric bed 10 defining the periphery of the electric bed 10 It is a head end 11, a tail end 12, a left side 13 and a right side 14. A user (not shown) sits on the left side 13 or the right side 14 of the electric bed 10 and can lie on the electric bed 10 in such a manner that the head extends toward the head end 11 and the leg ends toward the tail end 12.

The electric bed 10 has a deck set 20 for receiving a rectangular mattress (not shown). Specifically, the deck set 20 connects a first panel 22, a second panel 24, a third panel 26, and a fourth panel 28 in series with three sets of hinges 21. Each set of hinges 21 serves as a fulcrum, and the first plate 22, the third plate 26 and the fourth plate 28 move back and forth relative to the second plate 24 at a starting position and a raised position. In addition, a blocking member 23 is disposed adjacent the trailing end 12 of the fourth panel 28 to provide a barrier to the mattress.

The electric bed 10 also has a bed frame set 15 which is composed of a bottom frame 30, a back frame 32, a moving frame 34, a leg frame 36 (see Fig. 3), and a front lift. The mechanism 40 is comprised of a rear lift mechanism 50 disposed together on the back of the deck set 20 to support the deck set 20 at a certain height from the surface (such as the floor floor) and to load the sum of the weight of the user and the mattress.

The back frame 32 is locked to the back surface of the first plate 22, and does not interfere with the connection relationship between the front plate 40, the bottom frame 30 and the moving frame 34. The leg frame 36 (see Fig. 3) is locked to the back of the fourth plate 28, and does not affect the rear lift mechanism 50 being coupled between the movable frame 34 and the third plate 26 and in conjunction with the fourth plate 28 to operate synchronously.

In the third to fifth figures, the chassis 30 is a hollow rectangular frame, and is composed of three horizontal bars 301, 302, and 303 for welding two longitudinal bars 304 and 305. The chassis 30 has two sets of rollers 306, 307 and a set of mounts 308. Each set of rollers 306, 307 is disposed on the inside of the longitudinal bars 304, 305 and is spaced apart from each other by a certain distance. The set of mounts 308 are fixed to both ends of the inner side of the crossbar 301 and are kept in a staggered state with a joint 309 welded to the crossbar 302.

The moving frame 34 is formed by welding two long rails 344, 345 by three cross bars 341, 342, 343 to form a hollow rectangular frame, and welding two parallel vertical rods 346A, 346B between the two cross bars 341, 342, and The root longitudinal rod 346C is welded between the two short rails 347A, 347B, and is welded to the two cross rods 342, Between 343. The moving frame 34 also has a plurality of sets of joints 38, a set of pivoting seats 39 and a set of fixing seats 341A, 343A. Each set of joints 38 is secured to the sides of the long rails 344, 345 or the longitudinal bars 346A, 346B for a set of fasteners (such as screws or bolts, not shown) to be locked to the second plate 24 (see Figure 2). The back. The set of pivoting seats 39 are welded and fixed to the inner sides of the two long rails 344, 345, and the set of fixing seats 341A, 343A are welded to the inner sides of the crossbars 341, 343, respectively.

Because the distance between the two long rails 344, 345 is substantially equal to the distance between the two sets of rollers 306, 307, each set of rollers 306, 307 enters the corresponding long rails 344, 345, and the supporting mobile rack 34 and the chassis 30 are stacked. And can be reciprocally displaced along the longitudinal direction of the longitudinal rods 304, 305.

Referring back to Figures 1 and 2, after the front lift mechanism 40 is energized, the moving frame 34 drives the movable frame 34 to be displaced relative to the chassis 30, and the second plate 24 is brought close to the head end 11 of the electric bed 10, so that the first plate 22 is raised relative to the bed frame set 15 to a certain angle. At this point, the user's buttocks fall on the second panel 24, and the back rests against the first panel 22, enabling reading or feeding behavior in a comfortable sitting position. The front lifting mechanism 40 is not the technical core of the present invention, and therefore will not be described again.

Next, see Figures 3, 6-9, the rear lift mechanism 50 is composed of an electric motor 52, a telescopic rod 54, a linkage structure 56 and a set of swing arms 58. The electric motor 52 is coupled to the telescopic rod 54 and collectively referred to as a lift motor. The lift motor has a function of extending or shortening the length (usually referred to as the telescopic rod 54).

The linkage structure 56 is composed of a link 561, a set of supports 562, two rollers 563 and a set of coupling seats 564. The support members 562 are welded and fixed to the two ends of the connecting rod 561. Each of the supporting members 562 is a long sheet. One of the two ends of the sheet is pivotally connected to the corresponding connecting seat 564, and the other end is connected to the roller 563. When the coupling seat 564 is locked to the back of the third plate 26, the set of rollers 563 are placed into the corresponding short rails 347A, 347B of the moving frame 34, so that the support member 562 connects the third plate 26 with the moving frame 34 and maintains the inclined state. The connecting rod 561 is welded to a force receiving portion 565. The receiving portion 565 is pivotally connected to the two ends of the telescopic rod 54 by the fixing base 343A.

One end of each swing arm 58 is connected to the pivot seat 39 of the long rails 344, 345, and the other end is pivotally connected to the other joint base 581. When the coupling seat 581 is locked to the back of the fourth plate 28, the swing arm 58 connects the fourth plate 28 with the moving frame 34. Under the engagement of the hinge 21, the third plate 26 can drive the fourth plate 28 to move back and forth relative to the second plate 24 at a support position and a flat position.

At the support position (see Fig. 9), the lift motor is energized, and the electric motor 52 drives the telescopic rod 54 to perform a length extension operation. The support member 562 is pushed by the telescopic rod 54 with the coupling seat 564 as a fulcrum, and the associated roller 563 rolls along the length of the short rails 347A, 347B, thereby changing the angle of inclination of the support member 562, thereby pressing the third plate 26 against the chassis. 30 ascending to a certain angle. The third plate 26 pulls up the fourth plate 28 by the hinge 21, and the fourth plate 28 drives the swing arm 58 to rotate relative to the moving frame 34. The swing arm 58 supports the fourth plate 28 and the third plate 26 to maintain an obtuse angle 36A. The fourth plate 28 and the chassis 30 are maintained at a height 36B to achieve the purpose and function of lifting the user's lower leg.

In the flat position (see Fig. 8), the lift motor is still energized, and the electric motor 52 drives the telescopic rod 54 to perform the length shortening action. The support member 562 is pulled back to the original state by the telescopic rod 54, and the associated roller 563 is retracted in the longitudinal direction of the short rails 347A, 347B until the support member 562 returns to the original position. At this point, the swing arm 58 swings to the home position relative to the moving frame 34, causing the third plate 26 to lie flat with the fourth plate 28 above the chassis 30, thereby reducing the height of the user's lower leg at the electric bed.

Claims (4)

An electric bed rear lifting mechanism, a bed frame group (15) disposed on the back of a bed board group (20); the bed board group (20) includes a second board (24) and a third board connected to each other and movable (26) and a fourth plate (28); the bed frame set (15) has a chassis (30), and the bottom frame (30) is provided with a moving frame (34) combined with the second plate (24) and a rear The lifting mechanism (50); the rear lifting mechanism (50) comprises: a lifting motor; a set of swing arms (58), and each of the swing arms (58) is pivotally connected to the fourth plate (28) And a moving frame (34); a linkage structure (56) comprising: a link (561) and at least one support member (562) fixed at the link (561); the link (561) cooperates with the movable frame (34) pivotally raising the two ends of the motor; one of the two ends of the support member (562) is pivotally connected to the third plate (26), and the other end is in a rolling contact relationship with the moving frame (34). The hoisting mechanism of the electric bed according to claim 1, wherein the hoisting motor is composed of an electric motor (52) coupled with a telescopic rod (54); the connecting rod (561) has a force receiving portion (565), the force receiving portion (565) is pivotally coupled to both ends of the telescopic rod (54) by a fixing seat (343A) of the moving frame (34). The hoisting mechanism of the electric bed according to claim 1, wherein the rear hoisting mechanism (50) further has at least one roller (563) and at least one coupling seat (564), and the coupling seat (564) is fixed. On the back side of the third plate (26) and maintaining a pivotal relationship with one end of the support member (562), the roller (563) is placed into a short rail (347A or 347B) of the movable frame (34) to be rolled. The lifting device after the electric bed according to claim 1, wherein the chassis (30) has two sets of rollers (306, 307), and the moving frame (34) has two long rails (344, 345). The set of rollers (306, 307) enter the corresponding long rails (344, 345), and support the movable frame (34) and the chassis (30) to overlap and reciprocate.