TWI790040B - Hinge and electric bed with the hinge - Google Patents

Abstract

The present invention relates to a hinge and an electric bed with the hinge. The hinge includes a first part, a second part and a pivot. The first and second parts have the same shape and include a base, and an end surface located on the first base. , a long arm extends from the end surface, a shaft hole runs through the long arm, a short arm extends from the end surface, an extension arm extends from the long arm, a front contact surface is located on the extension arm, a middle The abutting surface is located on the long arm, and a rear abutting surface is located on the short arm; the pivot passes through the two shaft holes to combine the first part and the second part, so that the hinge can limit the angle of rotation , and can bear the weight of the human body and can be applied to the electric bed, and the electric bed can drive the head frame and the back frame successively by only using one actuator, which not only simplifies the structure but also facilitates assembly.

Description

Hinge and electric bed with the hinge

The invention relates to an electric bed, in particular to a hinge for an electric bed and an electric bed with the hinge.

A general electric bed has a movable frame that can swing up and down, such as a back frame. In order to adjust the angle of the user's head, a rotatable head frame is also arranged at the front end of the back frame. It is connected by a pivot and can be driven by two actuators. If only one actuator is required to reduce costs, the design of a connecting rod or a long slot can be used to allow the actuator to drive the head frame and the back in succession. However, this structure requires more components and the assembly process is more complicated, which is not conducive to the reduction of manufacturing costs.

An object of the present invention is to provide a hinge that can limit the angle of rotation, and can bear the weight of the human body so that it can be applied to an electric bed. Another object of the present invention is to provide an electric bed with the hinge, so that one actuator can drive two movable frames successively, and keep the two movable frames at a predetermined relative angle.

In order to achieve the above object, the hinge of the present invention includes a first part, a second part and a pivot; the first part includes a first base, a first end surface is located at the first base, a first long arm is formed by The first end surface extends parallel to a first axis, a first shaft hole runs through the first long arm perpendicular to the first axis, and a first short arm extends from the first end surface parallel to the first axis. A first extension arm extends from the first long arm parallel to the first axis, a first front abutment surface is located on the first extension arm, a first middle abutment surface is located on the first long arm, and A first rear abutment surface is located on the first short arm; the second component includes a second base, a second end surface is located on the second base, and a second long arm extends parallel to a second axis from the second end surface Out, a second shaft hole perpendicular to the second axis through the second long arm, a second short arm extends from the second end surface parallel to the second axis, a second extension arm extends from the second The long arm extends parallel to the second axis, a second front abutment surface is located on the second extension arm, a second middle abutment surface is located on the second long arm, and a second rear abutment surface is located on the second short arm. arm; the pivot passes through the first shaft hole and the second shaft hole to combine the first component and the second component together.

Thereby, the first part can be rotated from a first state to a second state relative to the second part. In the first state, the first middle abutment surface abuts against the second rear abutment surface, and the first The rear abutment surface is attached to the second middle abutment surface, and the first front abutment surface is not affixed to the second end surface, and the first end surface is not abutted to the second front abutment surface. In the second state The first middle abutment surface is not attached to the second rear abutment surface, and the first rear abutment surface is not affixed to the second middle abutment surface, and the first front abutment surface is affixed to the second end surface, And the first end surface is attached to the second front abutment surface; the hinge can limit the angle of rotation, and can bear the weight of the human body, so it can be applied to the electric bed.

In order to achieve the above object, the electric bed with the hinge of the present invention includes a base, a back frame, a head frame, at least one aforementioned hinge and an actuator; Supporting the user's back; the head frame is located at a front end of the back frame and used to support the user's head; the first part of the hinge is connected with the back frame, and the second part of the hinge is connected with the head frame; The two ends of the actuator are respectively arranged on the base and the head frame. Thereby, the electric bed can drive the head frame and the back frame sequentially only by using one actuator, and keep a predetermined relative angle between the head frame and the back frame.

The technical contents and features of the present invention will be described in detail below by referring to the drawings of two preferred embodiments. As shown in Figures 1-2, it is the hinge 1 provided by the first preferred embodiment of the present invention, which includes a The first component 10 , a second component 30 and a pivot 50 .

As shown in Figures 3 to 4, the first component 10 includes a first base 11, a first end surface 12 located at one end of the first base 11, a plate-shaped first long arm 13 extending from the first end surface 12 Extending parallel to a first axis A, a first shaft hole 14 runs through the first long arm 13 perpendicular to the first axis A, and a first short arm 15 is parallel to the first axis A from the first end surface 12 A first extension arm 16 extends from the first long arm 13 parallel to the first axis A, a first front abutment surface 17 is located at one end of the first extension arm 16, a first middle The abutting surface 18 is located at one end of the first long arm 13 , and a first rear abutting surface 19 is located at one end of the first short arm 15 . Wherein, the first middle abutment surface 18, the first rear abutment surface 19 and the first end surface 12 are all perpendicular to the first axis A, and the first front abutment surface 17 and the first middle abutment surface 18 have an approximate The included angle is 15°, there is a first front step surface 20 between the first front abutment surface 17 and the first middle abutment surface 18, and there is a first front step surface 20 between the first rear abutment surface 19 and the first end surface 12. A rear step surface 22 , the first front step surface 20 and the first rear step surface 22 are both S-shaped curved surfaces, but in other embodiments it can be a plane or other shapes. The first base 11 also has a first post 24 with a cross-sectional area smaller than that of the first end surface 12, the extension direction of the first post 24 is parallel to the first axis A, and the first post 24 has a The first perforation 26 is perpendicular to the first axis A.

As shown in Figures 3 to 4, the second part 30 is actually identical to the first part 10 in appearance, only the orientation is different. The second part 30 includes a second base 31, a second end surface 32 located on the second One end of the base 31, a plate-shaped second long arm 33 extends from the second end surface 32 parallel to a second axis B, and a second shaft hole 34 passes through the second long arm perpendicular to the second axis B. Arm 33, a second short arm 35 extending from the second end face 32 parallel to the second axis B, a second extension arm 36 extending from the second long arm 33 parallel to the second axis B, A second front abutment surface 37 is located at one end of the second extension arm 36 , a second middle abutment surface 38 is located at one end of the second long arm 33 , and a second rear abutment surface 39 is located at the second short arm 35 one end. Wherein, the second middle abutment surface 38, the second rear abutment surface 39 and the second end surface 32 are all perpendicular to the second axis B, and the second front abutment surface 37 and the second middle abutment surface 38 have an approximate 15°, there is a second front step surface 40 between the second front abutment surface 37 and the second middle abutment surface 38, and there is a second front abutment surface 40 between the second rear abutment surface 39 and the second end surface 32. The second rear step surface 42 , the second front step surface 40 and the second rear step surface 42 are all S-shaped curved surfaces, but in other embodiments, they can be plane or other shapes. The second base 31 also has a second post 44 with a cross-sectional area smaller than that of the second end surface 32. The extension direction of the second post 44 is parallel to the second axis B. The second post 44 has a The second through hole 46 is perpendicular to the second axis B. However, in other embodiments, the extension direction of the first post 24 may not be parallel to the first axis A, the extension direction of the second post 44 may not be parallel to the second axis B, and the shape of the second component 30 It may also be different from the first member 10 .

The pivot 50 passes through the first shaft hole 14 and the second shaft hole 34 to combine the first component 10 and the second component 30 together.

Thereby, the first component 10 can rotate relative to the second component 30 from a first state S1 to a second state S2, as shown in FIG. after the second abutment surface 39, and the first rear abutment surface 19 is abutted against the second middle abutment surface 38, while the first front abutment surface 17 is not abutted against the second end surface 32, and the first end surface 12 is not abutted against On the second front contact surface 37, the first front step surface 20 is not attached to the second rear step surface 42, and the first rear step surface 22 is not attached to the second front step surface 40. At this time, The first axis A viewed along the axial direction of the first shaft hole 14 is parallel to the second axis B, that is, there is a first included angle θ1 between the first axis A and the second axis B, which is 0°; As shown in FIG. 6, in the second state S2, the first middle abutment surface 18 is not attached to the second rear abutment surface 39, and the first rear abutment surface 19 is not abutted to the second middle abutment surface 38. , and the first front surface 17 is attached to the second end surface 32, and the first end surface 12 is attached to the second front surface 37, and the first front surface 20 is attached to the second rear surface surface 42, the first rear step surface 22 is attached to the second front step surface 40, at this time, there is a distance between the first axis A and the second axis B along the axial view of the first shaft hole 14 A second included angle θ 2 is 15°.

Through the above design, the hinge 1 provided by the present invention can make the first part 10 and the second part 30 turn from being parallel to each other (first state S1) to an included angle of 15° (second state S2), and due to its thick structure , the abutment area is large, and the first front step surface 20 and the second rear step surface 42 which are S-shaped in the second state S2 can be hooked to each other, and the first rear step surface 22 is also connected to the The second front step surfaces 40 are mutually hooked, so that the hinge 1 can withstand considerable stress, even if the body weight exceeds the general standard, there is no problem, which is enough to meet the needs of the electric bed field, thereby achieving the purpose of the present invention.

As shown in Figure 7, it is the perspective view of the hinge 1 of the first preferred embodiment of the present invention being located on an electric bed 60. The electric bed 60 includes a base 62, a back frame 64, a head frame 68, two hinges 1 and an actuator 72 .

The base 62 can be placed on the ground or the bed surface to provide support for other components. The back frame 64 is pivotally mounted on the base 62 with its rear end 65 and is used to support the user's back. The back frame 64 has two second A longitudinal tube 66, the head frame 68 is located at a front end 67 of the back frame 64 and used to support the user's head, the head frame 68 has two second longitudinal tubes 70 whose positions correspond to the two first longitudinal tubes 66, The first part 10 of each of the hinges 1 is connected to the back frame 64, and the second part 30 of each of the hinges 1 is connected to the head frame 68. Specifically, each of the first parts 10 is connected to the first post 24 Extending into the first longitudinal tube 66, and passing through the first longitudinal tube 66 and the first through hole 26 by a bolt 71, each of the first components 10 and each of the first longitudinal tubes 66 are connected together; Each of the second components 30 is inserted into the second longitudinal tube 70 with the second post 44, and another bolt 71 passes through the second longitudinal tube 70 and the second through hole 46, and each of the first The two parts 30 are connected to each of the second longitudinal tubes 70 , so that the head frame 68 and the back frame 64 are connected together and can rotate relative to each other.

A rear end 73 of the actuator 72 is arranged on the base 62, and a front end 74 of the actuator 72 is arranged on the head frame 68. When the actuator 72 is shortened, the head frame 68 just abuts against The base 62 and the head frame 68 are on the same plane as the back frame 64. At this time, the hinge 1 is in the first state S1, as shown in FIG. 7; when the actuator 72 is extended, the head frame 68 is relatively to the base 62 swings upwards so that the head frame 68 and the back frame 64 form an angle of 15°, at this moment the hinge 1 is in the second state S2, as shown in Figure 8; when the actuator 72 continues to extend, the head frame 68 and the back frame 64 swing upward relative to the base 62 , as shown in FIG. 9 , and the hinge 1 is still in the second state S2 at this moment.

In this way, the present invention only needs to set the actuator 72 on the electric bed 60, so that the head frame 68 can be lifted up first, and then the back frame 64 can be lifted up in stages without setting a continuous Additional components such as rods or long slots not only have a simpler structure than conventional technologies, but also have a simpler and faster assembly process, which can reduce manufacturing costs and facilitate self-assembly by users, which has great market potential.

In addition, the hinge 1 of the present invention also has different installation methods. As shown in FIG. 10, it is a perspective view of the hinge 1 of the second preferred embodiment of the present invention installed on an electric bed 80. This embodiment and the first embodiment Roughly the same, the electric bed 80 also includes a base 82, a back frame 84, a head frame 88, two hinges 1 and an actuator 92, the difference is that the shape of the base 82 is modified to have a hexapod 83, and The installation directions of the two hinges 1 are reversed up and down, so that when the hinge 1 is in the second state S2, the head frame 88 is swiveled downward by 15° relative to the back frame 84, as shown in Figure 11, which is convenient for users to sleep on their stomachs. When the actuator 92 is extended, the hinge 1 can be returned to the first state S1, so that the head frame 88 is parallel to the back frame 84. At this time, the top surfaces of the two form a plane, as shown in FIG. 10 , when When the actuator 92 is further extended, the hinge 1 remains in the first state S1, and the head frame 88 and the back frame 84 can swing upwards relative to the base 82, which also achieves the effects of simple structure and convenient assembly.

Based on the spirit of the present invention, the structure of the hinge 1 can have other changes, for example: the angle between the first front abutment surface 17 and the first middle abutment surface 18 can be changed to be greater than 5° and less than 30°, or the second front abutment surface The angle between the surface 37 and the second middle contact surface 38 is greater than 5° and less than 30°, so that the angle between the first axis A and the second axis B changes accordingly in the first state S1 and the second state S2, for example, in the second state In a state S1, there is a first angle θ1 between the first axis A and the second axis B; in the second state, there is a second angle θ2 between the first axis and the second axis, The absolute value of the difference between the first included angle θ1 and the second included angle θ2 can be greater than 5° and less than 30°. The first middle abutment surface 18, the first rear abutment surface 19 or the first end surface 12 may not be perpendicular to the first axis A, the second middle abutment surface 38, the second rear abutment surface 39 or the second end surface 32 may not be perpendicular to the second axis B. The first front step surface 20 , the first rear step surface 22 , the second front step surface 40 and the second rear step surface 42 can all be omitted. The hinge 1 can also be installed on other parts of the electric bed, such as between the thigh frame and the base. All these easily conceivable structural changes should be covered by the patent scope of the present invention.

1: hinge

10: First part

11: First base

12: The first end face

13: First long arm

14: The first shaft hole

15: First short arm

16: First extension arm

17: The first arrival

18: The first mid-arrival

19: The first rear arrival

20: The first front surface

22: The first rear surface

24: The first post

26: First piercing

A: first axis

30: Second part

31:Second base

32: Second end face

33: second long arm

34: Second shaft hole

35: Second short arm

36: Second extension arm

37: The second front face

38: The second middle face

39: The second back face

40: The second front surface

42: The second rear surface

44: The second post

46:Second piercing

B: second axis

50: pivot

60: Electric bed

62: base

64: back frame

65: Backend

66: First longitudinal tube

67: front end

68: head frame

70: second longitudinal tube

71: tie piece

72: Actuator

73: Backend

74: front end

Figures 1 to 2 are perspective views of the hinge of the first preferred embodiment of the present invention; 3-4 are three-dimensional exploded views of the hinge of the first preferred embodiment of the present invention; 5-6 are schematic diagrams of the action of the hinge of the first preferred embodiment of the present invention; Fig. 7 is a perspective view of the electric bed with the hinge according to the first preferred embodiment of the present invention; Figures 8 to 9 are schematic diagrams of the movement of the electric bed with the hinge according to the first preferred embodiment of the present invention; Fig. 10 is a perspective view of the electric bed with the hinge according to the second preferred embodiment of the present invention; Figures 11 to 12 are schematic diagrams of the movement of the electric bed with the hinge according to the second preferred embodiment of the present invention.

1: hinge

10: First part

11: First base

12: The first end face

13: First long arm

14: The first shaft hole

16: First extension arm

17: The first arrival

18: The first mid-arrival

20: The first front surface

24: The first post

26: First piercing

A: first axis

30: Second part

31:Second base

32: Second end face

33: second long arm

34: Second shaft hole

35: Second short arm

36: Second extension arm

37: The second front face

38: The second middle face

39: The second back face

40: The second front surface

42: The second rear surface

44: The second post

46:Second piercing

B: second axis

50: pivot

Claims (10)

A hinge comprising: A first component includes a first base, a first end surface located on the first base, a first long arm extending from the first end surface parallel to a first axis, a first shaft hole perpendicular to the first The axis runs through the first long arm, a first short arm extends from the first end surface parallel to the first axis, a first extension arm extends from the first long arm parallel to the first axis, A first front abutment surface is located on the first extension arm, a first middle abutment surface is located on the first long arm, and a first rear abutment surface is located on the first short arm; A second component includes a second base, a second end surface located on the second base, a second long arm extending from the second end surface parallel to a second axis, a second shaft hole perpendicular to the second The axis runs through the second long arm, a second short arm extends from the second end surface parallel to the second axis, a second extension arm extends from the second long arm parallel to the second axis, a second front abutment on the second extension arm, a second middle abutment on the second long arm, and a second rear abutment on the second short arm; and a pivot, passing through the first shaft hole and the second shaft hole to combine the first part and the second part together; Thereby, the first part can be rotated from a first state to a second state relative to the second part. In the first state, the first middle abutment surface abuts against the second rear abutment surface, and the first The rear abutment surface is attached to the second middle abutment surface, and the first front abutment surface is not affixed to the second end surface, and the first end surface is not abutted to the second front abutment surface. In the second state The first middle abutment surface is not attached to the second rear abutment surface, and the first rear abutment surface is not affixed to the second middle abutment surface, and the first front abutment surface is affixed to the second end surface, And the first end surface abuts against the second front abutment surface. The hinge as claimed in claim 1, wherein the first part and the second part are identical in shape. The hinge according to claim 1 or 2, wherein the first front abutment surface and the first middle abutment surface have an included angle greater than 5° and less than 30°. The hinge according to claim 3, wherein the first middle abutment surface, the first rear abutment surface and the first end surface are all perpendicular to the first axis. The hinge according to claim 3, wherein in the first state, there is a first angle between the first axis and the second axis; in the second state, the first axis and the second axis There is a second included angle between them, and the absolute value of the difference between the first included angle and the second included angle is greater than 5° and less than 30°. The hinge as described in claim 3, wherein the first component further has a first front step surface located between the first front abutment surface and the first middle abutment surface, and a first rear step surface located between the first abutment surface between the rear abutment surface and the first end surface; the second part further has a second front step surface located between the second front abutment surface and the second middle abutment surface, and a second rear step surface located between the first end surface Between the two rear abutting surfaces and the second end surface. The hinge according to claim 6, wherein the first front step surface, the first rear step surface, the second front step surface and the second rear step surface are flat or curved surfaces, and in the second state, the first step surface A front-step surface abuts against the second rear-step surface, and the first rear-step surface abuts against the second front-step surface. An electric bed, comprising: a base; a back frame pivotally mounted on the base with a rear end thereof and used to support the user's back; a head frame, located at one front end of the back frame and used to support the user's head; At least one hinge as claimed in any one of claims 1 to 7, the first part of the hinge is connected to the back frame, and the second part of the hinge is connected to the head frame; and An actuator is respectively arranged on the base and the head frame with its two ends. The electric bed as described in claim 8, wherein the top surface of the head frame is parallel to the top surface of the back frame in the first state, and the top surface of the head frame and the top surface of the back frame are in the second state Have an included angle greater than 5º and less than 30º. The electric bed according to claim 8, wherein the head frame swings upwards or downwards relative to the back frame.

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