ES2910963T3 - Hinge - Google Patents

Abstract

Hinge adapted to interconnect first and second objects (11, 12) including: a leaf unit (2) including first and second leaves (21, 22) rotatable with respect to each other, said first leaf presenting ( 21) at least two first cylinders (211), said second sheet (22) having at least one second cylinder (221) that is spaced from said first cylinders (211) along an axis (X); two power supply units (3) that are inserted in said first cylinders (211) and said second cylinder (221) respectively in two opposite directions along the axis (X), and that can rotate together with said first blade ( twenty-one); and an axle unit (4) including a fixing element (41) which is removably mounted on said second cylinder (221) of said second blade (22) and is rotatable together with said second blade (22), and two shafts (42) which are respectively associated with said force providing units (3) and which are co-rotatably mounted on said clamping element (41), said clamping element (41) and said shafts being (42) configured as independent components, each of said shafts (42) and said corresponding force provision unit (3) being rotated with respect to one another after relative rotation between said first and second blades (21, 22) , so that said corresponding force providing unit (3) generates a driving force acting between said first and second blades (21, 22); said hinge being characterized in that each of said power supply units (3) includes a tubular element (31) that is inserted in said first and second cylinders (211, 221) and that can rotate together with said first leaf (21). ), a torsion spring (32) that is arranged in said tubular element (31) and that surrounds said corresponding axis (42), and an adjustment element (33) that is rotatably arranged in said tubular element (31) and that can be positioned with respect to said tubular element (31), said torsion spring (32) of each of said force-providing units (3) presenting two end portions (321, 322) that are respectively connected to said element adjusting (33) said force supply unit (3) and said corresponding shaft (42); and at least one of said force-providing unit (3) further includes an auxiliary spring (36) and a sliding block (37), said axis (42) presenting corresponding to one of said force-providing unit ( 3) a rectangular auxiliary shaft portion (424), said adjustment element (33) of said one of the force supply unit (3) also presenting an inclined surface (335), said auxiliary spring (36) being sleeved in said corresponding shaft (42) and surrounded by said torsion spring (32) of one of said power supply unit (3), said sliding block (37) resting against one end of said auxiliary spring (36) and presenting a hole rectangular (371) that is coupled with said auxiliary axis portion (424) of said corresponding axis (42), and an inclined surface (372) that faces said inclined surface (335) of said adjustment element (33), said sliding block (37) being able to rotate together with said corresponding axis (42) and being movable along said auxiliary axis portion (424) of said corresponding axis (42) along axis (X).

Description

DESCRIPTION

Hinge

The disclosure relates to a hinge, and more particularly to an adjustable hinge.

A conventional hinge disclosed in Taiwanese patent no. 1580856 includes a blade unit having first and second blades rotatable relative to each other and two action units that are mounted to the blade unit.

Each of the drive units includes a housing rotatable with the first blade, and an operating shaft rotatable with the second blade. The casing and the operating shaft of each of the drive units are rotated relative to each other upon relative rotation between the first and second blades, so as to generate a driving force acting between the first and second blades. sheets.

Documents EP3246501A1 and DE102009035682A1 both disclose a hinge with action units. However, in order to rotatably mount the operation shaft of each of the drive units to the second sheet, an inner surrounding surface of the second sheet needs to be formed with mounting structures corresponding to the operation shafts of the drive units. action units. Such mounting structures cannot be easily machined.

Therefore, an object of the disclosure is to provide a hinge that can alleviate the drawback of the prior art.

The invention proposes a hinge according to claim 1. Embodiments of the hinge are defined in the dependent claims.

Throughout the application, the terms unit of action and unit of force provision are equivalent.

Other features and advantages of the disclosure will become apparent from the following detailed description of the embodiments with reference to the accompanying drawings, of which:

Figure 1 is a top view illustrating a first embodiment of the hinge which is not part of the claimed invention;

Figure 2 is a partially exploded perspective view illustrating the first embodiment; Fig. 3 is an exploded perspective view illustrating a first action unit of the first embodiment;

Fig. 4 is a sectional view illustrating the first action unit;

Fig. 5 is an exploded perspective view illustrating a second action unit of the first embodiment;

Fig. 6 is a sectional view illustrating the second drive unit;

Figure 7 is an assembled perspective view illustrating the first embodiment;

Fig. 8 is a sectional view illustrating the first embodiment;

Figure 9 is a partially exploded perspective view illustrating a second embodiment of the hinge which is not part of the claimed invention;

Figure 10 is an exploded perspective view illustrating one of the two torsional drive units of the second embodiment;

Figure 11 is a sectional view illustrating the other of the torsional drive units;

Fig. 12 is an exploded perspective view illustrating the other of the torsional drive units of the second embodiment;

Figure 13 is a sectional view illustrating the other of the torsional drive units;

Figure 14 is an assembled perspective view illustrating the second embodiment;

Fig. 15 is a sectional view illustrating the second embodiment;

Figure 16 is a sectional view illustrating a third embodiment of the hinge which is not part of the claimed invention;

Fig. 17 is a sectional view illustrating a fourth embodiment of the hinge which is not part of the claimed invention;

Fig. 18 is a sectional view illustrating a modification of the first action unit;

Figure 19 is a partially exploded perspective view illustrating a fifth embodiment of the hinge which is not part of the claimed invention;

Fig. 20 is a sectional view illustrating the fifth embodiment;

Figure 21 is a partially exploded perspective view illustrating a sixth embodiment of the hinge according to the disclosure;

Fig. 22 is a sectional view illustrating the sixth embodiment;

Fig. 23 is a partially exploded perspective view illustrating a modification of an annular unit of the hinge according to the disclosure;

Fig. 24 is a sectional view illustrating the modification of the ring unit;

Fig. 25 is a sectional view illustrating a modification of the hinge torsional action unit according to an embodiment of the invention; Y

Figs. 26 and 27 are sectional views illustrating the operation of the torsional action unit modification.

Before the disclosure is described in greater detail, it should be noted that, where appropriate, reference numerals or end portions of reference numerals have been repeated between the figures to indicate corresponding or analogous elements, which may optionally have additional features. Similar.

Referring to Figures 1 and 2, the first embodiment of the hinge according to the disclosure and not forming part of the claimed invention is for interconnecting first and second objects 11, 12 (for example, a door frame and a door leaf) and includes a leaf unit 2, a first action unit 6, a second action unit 7, an axis unit 4 and an annular unit 5.

Blade unit 2 includes first and second blades 21, 22 which can rotate relative to each other. Each of the first sheet 21 and the second sheet 22 is made of metal.

The first sheet 21 has two first cylinders 211 that are spaced apart from one another along an axis (X), a first gripping surface 212 that grips the first object 11, and a first locating surface 213 that is parallel to the object. axis (X), which is connected to the first gripping surface 212 and which is not coplanar with the first gripping surface 212. The first positioning surface 213 allows an edge 111 of the first object 11 to bear against it. Each of the first cylinders 211 has two inner boundary planes 2111 which are formed on a surrounding inner surface thereof.

The second sheet 22 has a second cylinder 221 that is disposed between the first cylinders 211 and that is spaced from the first cylinders 211 along axis (X), a second gripping surface 222 that grips the second object 12, and a second positioning surface 223 that is parallel to axis (X), that is connected to the second gripping surface 222 , and that is not coplanar with the second gripping surface 222. The second positioning surface 223 allows an edge 121 of the second object 12 rests against it.

Referring further to Figures 3 and 4, the first drive unit 6 includes a first tubular member 61 which is inserted into the first and second cylinders 211, 221 and is rotatable together with the first blade 21, a hydraulic module 62 which disposed on the first tubular member 61, a distal drive member 63 which is co-rotatably mounted on the first tubular member 61, a proximal drive member 64 which is co-rotatably mounted on the first member tubular element 61 and a cover element 65 which is mounted on one end of the first tubular element The first tubular element 61 has a first tube section 611, and a second tube section 612 that bears against the first tube section 611. The first tube section 611 has two outer boundary planes 6111 that are formed on one surface. outer surround thereof and abutting respectively against the inner limiting planes 2111 of one of the first cylinders 211, and two mounting slots 6112, each of which extends from one end of the first tube section 611 in the axis direction (X). The second tube section 612 has two outer boundary planes 6121 which are formed on an outer surrounding surface thereof and respectively bear against the inner boundary planes 2111 of one of the first cylinders 211, two separate positioning recesses 6122 one from another that are formed on an inner surrounding surface thereof, and two mounting slots 6123, each of which extends from one end of the second tube section 612 in the direction of the (X) axis. Each of the mounting slots 6112 in the first tube section 611 cooperates with a respective one of the mounting slots 6123 in the second tube section 612 to form a mounting space 610 (see Figure 4). Therefore, the first tubular element 61 can rotate together with the first sheet 21 by the cooperation between the outer limiting planes 6111, 6121 and the inner limiting planes 2111. It should be noted that the first two-piece tubular element 61 is easy to assemble. be assembled with other components, and the first and second tube sections 611,612 can be made of different materials. A joint between the first and second tube sections 611, 612 of the first tubular element 61 should be located within one of the first cylinders 211.

The hydraulic module 62 includes a hydraulic cylinder 621, a support pin 622 that bears against the hydraulic cylinder 621, and an elastic member 623 that bears against the hydraulic cylinder 621. The hydraulic cylinder 621 threadably engages with the first tube section 611 of the first tubular element 61, and has a hexagonal seating hole 6211 extending along the axis (X) and accessible through the cover element 65, a hexagonal regulating hole 6212, and a projection telescopic 6213 that is opposite the seating hole 6211 and that bears against the support pin 622.

Distal drive member 63 is mounted to first and second tube sections 611, 612 of first tubular member 61 and features a distal sloped surface 631, and two mounting blocks 632, each of which engages a respective slot. of the mounting slots 6112 of the first tube section 611 and a corresponding one of the mounting slots 6123 of the second tube section 612 (i.e., resides within a respective one of the mounting spaces 610), so that the distal drive element 63 can rotate together with the first tubular element 61.

Proximal drive member 64 has a proximal sloped surface 641, a through hole 642, and two spaced apart positioning projections 643 that are formed on an outer surrounding surface thereof. Positioning projections 643 on proximal drive member 64 respectively engage positioning recesses 6122 on second tube section 612 so that proximal drive member 64 can rotate together with first tubular member 61.

Referring further to Figures 5 and 6, the second drive unit 7 includes a second tubular member 71 which is inserted into the first and second cylinders 211, 221 and is rotatable in conjunction with the first blade 21, a spring assembly disc 72 that is disposed on the second tubular element 71, a friction element 73 that abuts against the disc spring assembly 72 and is rotatable together with the second tubular element 71, an adjustment element 74 that engages so threaded with the second tubular element 71 and biasing the disc spring assembly 72, and a plurality of washers 75 arranged on the second tubular element 71. In this example, the second action unit 7 includes two clamping washers 75.

The second tubular element 71 has a first tube section 711, and a second tube section 712 that bears against the first tube section 711. The first tube section 711 has two outer boundary planes 7111 (only one is visible in 5) that are formed on an outer surrounding surface thereof and abut respectively against the inner limiting planes 2111 of one of the first cylinders 211, and two mounting blocks 7112, each of which extends from one end of the first tube section 711 in the direction of the axis (X). The second tube section 712 has two outer boundary planes 7121 which are formed on an outer surrounding surface thereof and each bear against the inner boundary planes 2111 of one of the first cylinders 211, two positioning recesses 7122 (only one is shown in Figure 5) spaced apart from each other which are formed at one end of the second tube section 712, and two spaced apart mounting slots 7123, each extending from an opposite end of the second tube section 712 in the direction of axis (X) and is engaged with a respective one of the mounting blocks 7112 of the first tube section 711.

The disk spring assembly 72 includes a plurality of disk springs 721 that are disposed between the friction element 73 and one of the washers 75, and a filler element 722 that is disposed between the washers 75. The friction element 73 features two spaced-apart positioning lugs 731 which are formed on an outer surrounding surface thereof and which respectively engage on the positioning recesses 7122 of the second tube section 712, so that the friction element 73 can rotate together with the second tubular element 71. The friction element 73 further has a friction surface 732 which is formed at one end thereof distally of the disc spring assembly 72.

Therefore, the second tubular element 71 can rotate together with the first sheet 21 by the cooperation between the outer limiting planes 7111, 7121 and the inner limiting planes 2111. It should be noted that the two-piece second tubular element 71 is easy to assemble. be assembled with other components, and the first and second tube sections 711, 712 can be made of different materials. A joint between the first and second tube sections 711, 712 of the second tubular element 71 should be located within one of the first cylinders 211.

Referring again to Figures 2 and 3, the spindle unit 4 includes a fixing element 41 which is removably mounted to the second cylinder 221 of the second blade 22 by a fastener 23 and is rotatable together with the second blade. blade 22, a first shaft 43 (see Fig. 3) which is mounted on the first drive unit 6 and is rotatably connected together with the fixing element 41, and a second shaft 44 (see, Fig. 2) which is mounted on the second drive unit 7 and which is rotatably connected together with the clamping element 41. In one example, the first axis 43 is located between the clamping element 41 and the hydraulic cylinder 621 .

The fixing element 41 has a rectangular fixing hole 411 which is formed in one of the two opposite end surfaces of the fixing element 41 along the axis (X) and which extends along the axis (X), a fixing recess 412 (see Fig. 8) which is formed on the other surface of the opposite end surfaces of the fixing element 41, and two fixing grooves 413 (only one is visible in Fig. 2) which are respectively formed on the opposite end surfaces. opposite end surfaces of clamping element 41. In one example, clamping recess 412 is configured as a circular recess. In one example, clamp hole 411 is formed through opposite end surfaces of clamp element 41. In one example, clamp element 41 has a circular outer surrounding surface that abuts against an inner surrounding surface of the second cylinder. 221 of the second sheet 22.

Referring again to Figure 3, the first shaft 43 has a follower portion 430 which is disposed between the distal drive member 63 and the proximal drive member 64, and a shaft portion 431 which extends through the through hole. 642 of proximal drive member 64 and rotatably engages together with fixation hole 411 of fixation element 41. Follower portion 430 has a bearing surface 432 (see, Fig. 8) which is opposite to shaft portion 431 and abutting against stop pin 622 and elastic member 623, a surrounding wall 433 that cooperates with stop surface 432 to define a recess, and a proximal follower surface 434 that is opposite the surface 432 and which faces the proximal sloped surface 641 of the proximal drive member 64. The surrounding wall 433 has a distal follower surface 4331 which is opposite the surface proximal follower surface 434 and facing distal sloped surface 631 of distal drive member 63. In this example, shaft portion 431 is configured as a rectangular cross-section.

Referring to Fig. 2, the second shaft 44 has a fixing hole 440 which is rotatably coupled with the shaft portion 431 of the first shaft 43, a post 441 which is rotatably coupled with a corresponding slot of the fixing slots 413 of the fixing element 41, and two projections 442 (only one is visible in figure 2) protruding towards the friction surface 732 of the friction element 73 of the second action unit 7. In this example, the fixing hole 440 is configured as a rectangular hole. The post 441 can be rotatably engaged together with the fixing recess 412 of the fixing element 41 by modifying the shape of the fixing recess 412. The projections 442 of the second shaft 44 are in frictional contact with the friction surface 732 of the element. 73 of the second drive unit 7, so that the second drive unit 7 can generate a driving force acting between the first and second blades 21, 22 when the second shaft 44 and the second drive unit 7 are moved. rotate one relative to the other. The profile of the friction surface 732 of the friction element 73 may be configured in such a way that the first and second sheets 21, 22 are clamped relative to each other when an angle formed between the first and second sheets 21, 22 reaches a predetermined value or range, or they can be configured in such a way that the second action unit 7 retards the relative rotation between the first and second blades 21, 22 when the angle formed between the first and second blades 21, 22 reaches a value or range default and is not limited to it.

Referring to figures 2 and 8, the annular unit 5 includes two annular elements 51 and two spacer assemblies 52. The annular elements 51 are respectively arranged between the first tubular element 61 and the second cylinder 221 and between the second tubular element 71 and the second cylinder 221. Each of the spacer assemblies 52 includes a spacer 521. Each of the spacers 521 of the spacer assemblies 52 has a surrounding wall 522 that is disposed between the second cylinder 221 and a respective one of the first element tube 61 and the second tube member 71, and a rim wall 523 that is disposed between the second cylinder 221 and a respective one of the first cylinders 211.

Each of the annular elements 51 and spacer assemblies 52 may be made of polyoxymethylene (POM) or polytetrafluoroethylene (PTFE) and serves as a sleeve to facilitate relative rotation between corresponding components.

During installation of the hinge on the first and second objects 11, 12, the first sheet 21 can be quickly and accurately positioned relative to the first object 11, by moving the first positioning surface 213 to bear against the edge 111 of the first object 11. , and the second sheet 22 can be quickly and accurately positioned relative to the second object 12 by moving the second positioning surface 223 to bear against the edge 121 of the second object 12. Thus, the first and second objects 11, 12 are positioned with accurately relative to one another and can be smoothly rotated relative to one another.

Referring to Figs. 1 to 8, when the first and second blades 21, 22 are rotated relative to each other in the direction of the arrow shown in Fig. 1 by an external force, the first shaft 43 is rotated with relative to the distal and proximal drive members 63, 64, and the proximal sloped surface 641 of the proximal drive member 64 pushes the proximal follower surface 434 of the first shaft 43 to move the first shaft 43 toward the hydraulic cylinder 621 and to push the distal follower surface 4331 against the inclined distal surface 631 of the distal drive member 63. Thus, the first shaft 43 pushes the support pin 622 to press the telescoping boss 6213 of the hydraulic cylinder 621 to control the relative rotational speed between the first and second blades 21,22, and the bearing surface 432 of the first shaft 43 pushes and compresses the elastic element 63 to generate a restoring force (i.e., an f driving force).

At the same time, the second shaft 44 is rotated relative to the friction element 73 and biases the friction element 73 to compress the disc spring assembly 72 to generate the driving force.

When the external force is removed, elastic element 623 pushes first shaft 43 away from hydraulic cylinder 621, and therefore proximal follower surface 434 of first shaft 43 pushes proximal sloped surface 641 of proximal actuation element 64 away. rotating the first shaft 43 and the proximal actuating member 64 relative to each other so as to rotate the first and second blades 21, 22 relative to each other in a direction opposite to the arrow shown in Figure 1.

It should be noted that the distal follower surface 4331 of the first shaft 43 is in contact with the distal sloped surface 631 of the distal actuation element 63 when the first and second blades 21, 22 are rotated relative to each other in the opposite direction to the arrow shown in figure 1.

It should be noted that the first leaf 21 can be connected to either one of a door leaf and a door frame while the second leaf 22 is connected to the other of the door leaf and the door frame.

Hexagonal seating hole 6211 of hydraulic cylinder 621 allows a hand tool to engage with it. By turning the hand tool, the hydraulic cylinder 621 is moved relative to the first tubular member 61 along the axis (X), and the relative position between the hydraulic cylinder 621 and the first axis 43 is adjusted, so that the range of the angle formed between the first and second blades 21, 22 within which the hydraulic cylinder 621 works. The hexagonal throttle hole 6212 of the hydraulic cylinder 621 allows another hand tool to engage with it. By turning the hand tool, the damping coefficient of hydraulic cylinder 621 can be adjusted.

Furthermore, by moving the adjustment element 74 along axis (X), the actuation force generated by the disc spring assembly 72 can be adjusted. By replacing the friction element 73 with another friction element 73 having a surface of friction 732 with different profile, the disc spring assembly 72 can generate the actuating force when the angle formed between the first and second blades 21, 22 reaches a predetermined value or range.

Referring to figures 9 and 10, a second embodiment of the hinge which is not part of the claimed invention is similar to the first embodiment and includes the leaf unit 2, the axis unit 4, the annular unit 5 and two torsional action units 3.

In this embodiment, the first sheet 21 is U-shaped and defines a receiving space, and the second sheet 22 is disposed in the receiving space of the first sheet 21.

Referring to Figures 10 to 13, the torsional drive units 3 are inserted into the first cylinders 211 and the second cylinder 221, respectively, in two opposite directions along the axis (X). Each of the torsional drive units 3 includes a torsional tubular member 31 that is inserted into the first and second cylinders 211, 221 and is rotatable together with the first blade 21, a torsion spring 32 that is arranged in the tubular member torsional tubular element 31 to generate a resetting force, an adjustment element 33 which is rotatably arranged in the torsional tubular element 31 and can be positioned relative to the torsional tubular element 31, two limiting rings 34 (see, figures 11 and 12) and a set screw 35.

The torsional tubular member 31 has a first tube section 311, and a second tube section 312 abutting against the first tube section 311. The first tube section 311 has a toothed portion 3111 formed on an inner surrounding surface of the tube. itself, two mounting blocks 3112, each of which extends from one end of the first tube section 311 in the direction of the axis (X), and two outer limiting planes 3113 (only one is visible in figure 10 ) which are formed on an outer surrounding surface thereof and which bear respectively against the inner limiting planes 2111 of one of the first cylinders 211. The second tube section 312 has two mounting slots 3121 spaced apart from each other, each one of which extends from one end of the second tube section 312 in the direction of axis (X) and is engaged with a respective one of the mounting blocks 3112 of the first tube section or 311, and two outer boundary planes 3122 that are formed on an outer surrounding surface thereof and respectively abut against inner boundary planes 2111 of one of the first cylinders 211.

The torsion spring 32 has a central coil 324, two end coils 323 which are respectively connected to two opposite ends of the central coil 324, and two end portions 321, 322, each of which is connected to a distal end of a respective coil of the end coils 323. Each of the end coils 323 has at least two spirals that are spaced apart from each other by a first distance (D1). The central coil 324 has a plurality of spirals. Two adjacent coils among the coils of the central coil 324 are spaced apart from each other by a second distance (D2). The first distance (D1) is less than the second distance (D2).

The adjustment element 33 has a hexagonal adjustment hole 331 (see Fig. 11) which is formed in an end surface thereof and which is exposed from the torsional tubular element 31, a limiting groove 332 which is formed in a surrounding surface. outside thereof, a toothed portion 333 that releasably engages with the toothed portion 3111 of the first tube section 311, and a spring groove 334 that is formed in an end surface thereof and is rotatably coupled together with the end portion 321 of the torsion spring 32. The hexagonal adjustment hole 331 of the adjustment element 33 allows a hand tool (not shown) to engage therewith. By turning the hand tool in one direction, the engagement between the toothed portion 333 of the adjusting member 33 and the toothed portion 3111 of the first tube section 311 can be adjusted so that the reset force (i.e., a reset force) is adjusted. drive) generated by the torsion spring 32.

Limiting rings 34 are respectively arranged between the first tube section 311 and the second tube section 312 and at one end of the second tube section distal to the first tube section 311, and respectively surround the end portions 321, 322 of the torsion spring 32 in order to prevent the end portions 321, 322 of the torsion spring 32 from separating from the spring slot 334 of the adjusting element 33. The set screw 33 engages in a threaded manner with the first section of tube 311 of the torsional tubular element 31, and extends towards the limiting groove 332 of the adjustment element 33 in order to limit the movement of the adjustment element 33 along the axis (X).

Referring to figures 9, 10 and 12, the axis unit 4 includes a fixing element 41 which is removably mounted on the second cylinder 221 of the second sheet 22 by a holder 23 (see figure 15) and which co-rotatable with the second blade 22, two torsional shafts 42 (see Figs. 10 and 12), each of which is mounted on a respective unit among the torsional action units 3 and is connected so as to co-rotate with the fixing element 41.

The fixing element 41 has a rectangular fixing hole 411 which is formed in one of the two opposite end surfaces of the fixing element 41 along the axis (X) and which extends along the axis (X), a fixing recess 412 (see Fig. 9) which is formed on the other surface among the opposite end surfaces of the fixing element 41, and two fixing grooves 413 (only one is visible in Fig. 9) which are respectively formed on opposite end surfaces of the fastener element 41. In one example, the fastener recess 412 is configured as a rectangular recess. In one example, fixing hole 411 is formed through opposite end surfaces of fixing element 41.

Each of the torsional axes 42 extends along the axis (X) through the end coils 323 and the central coil 324 of the torsion spring 32 of the corresponding torsional action unit 3, and has an axis portion 421 and a rim portion 423 which is formed with a groove 422. The shaft portions 421 of the torsional shafts 42 each and rotatably engage together with the fixing hole 411 and fixing recess 412 of the locking member. fixing 41 (see figure 15). The slots 422 of the torsional axes 42 are respectively aligned with the fixing slots 413 of the fixing element 41, so that the end portions 322 of the torsion springs 32 of the torsional action units 3 extend respectively through the fissures 42 of the torsional axes 42 to respectively engage with the fixing slots 413 of the fixing element 41.

Referring to Fig. 14, since the second sheet 22 is disposed in the receiving space defined by the first U-shaped sheet 21, the second embodiment is suitable for use on the occasion that a gap between the first and second objects 11, 12 (with reference to Fig. 1) is equal to or slightly larger than the thickness of the first sheet 21. During installation of the hinge on the first and second objects 11, 12, the first sheet 21 can be quickly and accurately positioned relative to the first object 11 by moving the first positioning surface 213 to bear against the edge 111 of the first object 11, and the second sheet 22 can be quickly and accurately positioned relative to the second object 12 by moving the second positioning surface 223 to bear against the edge 121 of the second object 12. Thus, the first and second objects 11, 12 are accurately positioned relative to one another, and can be perfectly rotated relative to one another.

Referring to Figures 9, 14 and 15, when the first and second blades 21, 22 are rotated relative to each other by an external force, each of the torsional shafts 42 is rotated relative to the tubular torsional member 31. of the corresponding torsional action unit 3 to twist the torsion spring 32 of the corresponding torsional action unit 3 in such a direction that the diameter of the torsion spring 32 is reduced and that each of the first and second distances (D1, D2 ) is reduced in such a way that a reset force (i.e., an actuation force) is generated. Thus, when the external force is removed, the torsion spring 32 of each of the torsional drive units 3 is reset to rotate the first and second blades 21,22 relative to each other.

The second embodiment uses two torsion springs 32 to generate the reset force and is therefore suitable for a heavy door leaf. It should be noted that after the torsion spring 32 is twisted by an external force, such that no two adjacent coils between the coils of each of the end coils 323 bear against each other (i.e., D1 =0, D2£0), another relative rotation between the corresponding adjusting element 33 and the corresponding torsional axis 42 caused by the external force would deform only the central coil 324 (because the end coils 323 cannot be further deformed). Consequently, in the case that each of the central coil 324 and the end coils 323 has the same number of spirals, after each relative rotation between the corresponding adjusting element 33 and the corresponding torsional axis 42 by a predetermined angle caused by the external force, the increase in the restoring force generated by the torsion spring 32 at the moment that no two adjacent coils among the coils of each of the end coils 323 bear against each other is three times the increase in the restoring force generated by the torsion spring 32 at the time the coils of each of the end coils 323 are spaced from one another. Therefore, the second embodiment is suitable for a heavy door leaf.

It should be noted that the first leaf 21 may be connected to either one of a door leaf and a door frame while the second leaf 22 is connected to the other of the door leaf and the door frame.

Referring to Figure 16, a third embodiment of the hinge which is not part of the claimed invention is similar to the second embodiment and includes the leaf unit 2, the axis unit 4, the ring unit 5, the torsional action unit 3 and the second action unit 7. The axis unit 4 of the third embodiment includes the fixing element 41 which is removably mounted on the second cylinder 221 of the second sheet 22 by the fastener 23 and co-rotatable with the second blade 22, the torsional shaft 42 which is mounted on the torsional action unit 3 and which is co-rotatably connected with the fixing element 41, and the second shaft 44 which is mounted on the second action unit 7 and which is rotatably connected together with the fixing element 41.

The cooperation of the components of the third embodiment can be understood by one of ordinary skill in the art with reference to the preceding paragraphs, and will not be described further.

Referring to Figure 17, a fourth embodiment of the hinge which is not part of the claimed invention is similar to the second embodiment and includes the leaf unit 2, the axis unit 4, the ring unit 5, the torsional action unit 3 and the first action unit 6. The axis unit 4 of the fourth embodiment includes the fixing element 41 which is removably mounted on the second cylinder 221 of the second sheet 22 by the fastener 23 and co-rotatably with the second blade 22, the torsion shaft 42 which is mounted on the torsion action unit 3 and which is co-rotatably connected with the fixing element 41, and the first shaft 43 which is mounted on the first action unit 6 and which is rotatably connected together with the fixing element 41.

The cooperation of the components of the fourth embodiment can be understood by one of ordinary skill in the art with reference to the preceding paragraphs and will not be described further.

Referring to figure 18, a modification of the first drive unit 6 includes the first tubular element 61 which is inserted into the first and second cylinders 211, 221 (see figure 2) and which can rotate together with the first cylinders 211 , the hydraulic module 62 which is arranged in the first element tubular element 61, the proximal drive member 64 which is rotatably mounted together on the first tubular member 61, and the cap member 65 which is mounted on one end of the first tubular member 61. It should be noted that the cap member 65 is omitted. distal drive 63 (see Figure 3). The modification operation is similar to that of the first action unit 6 shown in Fig. 4 and will not be described further.

Referring to figures 19 and 20, a fifth embodiment of the hinge which is not part of the claimed invention is similar to the first embodiment and includes the leaf unit 2, the axis unit 4, the ring unit 5, the first action unit 6 and the second action unit 7.

The fixing element 41 has a different configuration such that the fixing element 41 and the second axis 44 move towards the second cylinder 221 of the second sheet 22 through the lower opening of the second cylinder 221. The axis part 431 of the first axis 43 engages with the fixing hole 411 of the fixing element 41 and the fixing hole 440 of the second axis 44, so that the fixing element 41, the first axis 43 and the second axis 44 can rotate of joint form. The projections 442 (only one is visible in figure 19) of the second shaft 44 are in frictional contact with the friction surface 732 of the friction element 73 of the second drive unit 7.

Referring to figures 21 and 22, a sixth embodiment of the hinge which is not part of the claimed invention is similar to the second embodiment and includes the leaf unit 2, the axis unit 4, the ring unit 5 and torsional action units 3.

The fixing element 41 has a different configuration and is moved towards the second cylinder 221 of the second sheet 22 through the lower opening of the second cylinder 221. The axis portions 421 of the torsional axes 42 each engage and form which can rotate together with the fixing hole 411 and the fixing recess 412 of the fixing element 41 (see figure 22). The slots 422 of the torsional axes 42 are each aligned with the fixing slots 413 of the fixing element 41, so that the end portions 322 of the torsion springs 32 of the torsional action units 3 extend respectively through the slots 422 of the torsional axes 42 to respectively engage with the fixing slots 413 of the fixing element 41.

Referring to Figures 23 and 24, each of the spacer assemblies 52 may include two spacers 521. The surrounding walls 522 of the spacers 521 of each of the spacer assemblies 52 extend respectively toward the second cylinder 221 and one of the first cylinders 211, and the rim wall 523 of the spacers 521 of each of the spacer assemblies 52 bear against each other and are disposed between the second cylinder 221 and one of the first cylinders 211.

In some examples, each of the annular elements 51 may be made of polyoxymethylene (POM) or polytetrafluoroethylene (PTFE) and serves as a sleeve to facilitate relative rotation between corresponding components. Each of the spacer assemblies 52 may be made of metal, such as aluminum so as to be resistant to wear. Furthermore, the materials of the first cylinders 211, the second cylinder 221, and the exposed rim wall 523 of the spacers 521 of each of the spacer assemblies 52 may be similar to one another, so that the hinge may be visually aesthetic.

Referring to Fig. 25, a modification of the torsional action unit 3, according to an embodiment of the invention, further includes an auxiliary spring 36 and a slide block 37.

Torsion shaft 42 furthermore has a rectangular auxiliary shaft portion 424 which is opposite to shaft portion 421.

The adjustment element 33 furthermore has an inclined surface 335 which is opposite to the hexagonal adjustment hole 331.

Auxiliary spring 36 is sleeved on torsion shaft 42 and is surrounded by torsion spring 32.

The slide block 37 bears against one end of the auxiliary spring 36 and has a rectangular hole 371 which is engaged with the auxiliary shaft portion 424 of the torsional shaft 42, and an inclined surface 372 which is opposite the auxiliary spring 36 and which is in sliding contact with the inclined surface 335 of the adjustment element 33. The sliding block 37 can rotate together with the torsional axis 42 and can move along the auxiliary axis portion 424 of the torsional axis 42 along the axis ( X).

Referring to Figures 26 and 27, when the first and second blades 21, 22 are rotated relative to each other by an external force, the torsion shaft 42 and slide block 37 are rotated relative to each other, so that the inclined surface 335 of the adjustment element 33 pushes the inclined surface 372 of the slide block 37 to move the slide block 37 away from the adjustment element 33 along the axis (X) to compress the auxiliary spring 36, so that a restoring force is generated. When the external force is removed, the torsion spring 32 and auxiliary spring 36 reset to rotate the first and second blades 21, 22 relative to each other, and to move the slide block 37 towards the adjustment element 33 along the axis (X).

In summary, the advantages of disclosure are as follows:

1. The torsional axis 42, the first axis 43 or the second axis 44 can be easily and rotatably jointly mounted on the second cylinder 221 of the second blade 22 by virtue of the fixing element 41 which is removably mounted on the second cylinder 221 without forming mounting structures on the inner surrounding surface of the second cylinder 221. In addition, a worn fastener 41 can be easily replaced with a new fastener 41.

2. Each of the annular elements 5 and spacer assemblies 52 serve as a sleeve to facilitate relative rotation between corresponding components.

3. The configuration of the torsion spring 32 allows the torsion spring 32 to generate a greater reset force.

4. Each of the second and following embodiments is suitable for use in the event that a gap between the first and second objects 11, 12 (with reference to Figure 1) is equal to or slightly greater than the thickness of the first sheet 21 since the second sheet 22 is disposed in the receiving space defined by the first U-shaped sheet 21.

5. During installation of the hinge on the first and second objects 11, 12, the first leaf 21 can be quickly and accurately positioned relative to the first object 11 by moving the first positioning surface 213 to bear against the edge 111 of the first object 11, and the second sheet 22 can be quickly and accurately positioned relative to the second object 12 by moving the second positioning surface 223 to bear against the edge 121 of the second object 12. Thus, the first and second objects 11, 12 they are precisely positioned relative to one another and can be smoothly rotated relative to one another.

In the foregoing description, for purposes of explanation, numerous specific details have been set forth in order to provide a complete understanding of the embodiments. However, it will be apparent to those skilled in the art that one or more additional embodiments may be practiced without some of these specific details.

It should be further appreciated that in the description, various features are sometimes grouped together in a single embodiment, figure, or description thereof for purposes of optimizing disclosure and assisting in the understanding of various inventive aspects, and that one or more Specific features or details of one embodiment may be practiced together with one or more specific features or details of another embodiment, where appropriate, without departing from the scope of the invention as defined by the claims.

Claims (11)

1. Hinge adapted to interconnect first and second objects (11, 12) including: a blade unit (2) including first and second blades (21, 22) rotatable with respect to each other, said first blade (21) having at least two first cylinders (211), said second blade ( 22) at least one second cylinder (221) that is spaced from said first cylinders (211) along an axis (X); two power supply units (3) that are inserted in said first cylinders (211) and said second cylinder (221) respectively in two opposite directions along the axis (X), and that can rotate together with said first blade ( twenty-one); Y an axle unit (4) including a fixing element (41) that is removably mounted on said second cylinder (221) of said second blade (22) and is rotatable together with said second blade (22), and two shafts (42) which are respectively associated with said power supply units (3) and which are jointly rotatably mounted on said clamping element (41), said clamping element (41) and said shafts ( 42) configured as independent components, each of said shafts (42) and said corresponding force supply unit (3) being rotated with respect to one another after relative rotation between said first and second blades (21, 22), such that said corresponding force providing unit (3) generates a driving force acting between said first and second blades (21, 22); said hinge being characterized in that each of said power supply units (3) includes a tubular element (31) that is inserted in said first and second cylinders (211, 221) and that can rotate together with said first blade (21), a torsion spring (32) that is arranged in said tubular element (31) and that surrounds said corresponding axis (42), and an adjustment element (33) that is rotatably arranged in said tubular element (31) and that can be positioned with respect to said tubular element (31), said torsion spring (32) of each of said force-providing units (3) presenting two end portions (321, 322) which are respectively connected to said adjusting element (33) of said power supply unit (3) and said corresponding shaft (42); Y at least one of said force supply unit (3) further includes an auxiliary spring (36) and a sliding block (37), said axis (42) presenting that corresponds to one of said force supply unit (3). ) a rectangular auxiliary shaft portion (424), further presenting said adjustment element (33) of said one of the force supply unit (3) an inclined surface (335), said auxiliary spring (36) being sleeved on said shaft (42) corresponding to and surrounded by said torsion spring (32) of one of said power supply unit (3), said sliding block (37) resting against one end of said auxiliary spring (36) and presenting a rectangular hole (371) that is coupled with said auxiliary axis portion (424) of said corresponding axis (42), and an inclined surface (372) that faces said inclined surface (335) of said adjustment element (33), being able said sliding block (37) rotate together with di said corresponding axis (42) and being movable along said auxiliary axis portion (424) of said corresponding axis (42) along axis (X). 2. Hinge according to claim 1, characterized in that said first leaf (21) also has a first gripping surface (212) that grips the first object (11), and a first positioning surface (213) that is parallel to the axis (X), which is connected to said first gripping surface (212) and which is not coplanar with said first gripping surface (212), said first positioning surface (213) allowing an edge (111) of the first object (11) leans against it. 3. Hinge according to any of claims 1 and 2, characterized in that said second leaf (22) also has a second gripping surface (222) that grips the second object (12), and a second positioning surface (223) which is parallel to axis (X), which is connected to said second gripping surface (222) and which is not coplanar with said second gripping surface (222), said second positioning surface (223) allowing an edge (121 ) of the second object (12) rests against it. 4. Hinge according to any of claims 1 to 3, characterized in that said first leaf (21) is U-shaped and defines a receiving space, said second leaf (22) being arranged in said receiving space of said first leaf ( twenty-one). 5. Hinge according to any of claims 1 to 4, further characterized by an annular unit (5), said annular unit (5) including a plurality of annular elements (51) and a spacer assembly (52), said annular element being ( 51) respectively disposed between one of said power supply units (3) and said second cylinder (221) and between said other one of said power supply units (3) and said second cylinder (221), said spacer assembly (52) including at least one spacer (521), said spacers (521) presenting a surrounding wall (522) that is disposed between said second cylinder (221) and one of said units providing force (3), and a rim wall (523) that is disposed between one of said first cylinders (211) and said second cylinder (221). Hinge according to claim 5, characterized in that each of said first leaf (21), said second leaf (22) and said spacer (521) is made from metal, each of said annular elements (51 ) made from polyoxymethylene (POM) or polytetrafluoroethylene (PTFE). 7. Hinge according to claim 1, further characterized in that said torsion spring (32) of at least one of said force supply units (3) has a central coil (324), two end coils (323) that are respectively connected with two opposite ends of said central coil (324), and two end portions (321, 322) that are respectively connected with said end coils (323) and that are respectively connected with said adjusting element (33) and said axis (42) corresponding, each of said end coils (323) presenting at least two spirals that are spaced apart by a first distance (D1), said central coil (324) presenting a plurality of spirals, two adjacent spirals being of between said spirals of said central coil (324) spaced apart by a second distance (D2), the first distance (D1) being less than the second distance (D2). Hinge according to claim 1, further characterized in that said fixing element (41) has a rectangular fixing hole (411) and a fixing recess (412) which are respectively formed on two opposite end surfaces of said fixing element (41) along axis (X), each of said axes (42) presenting a shaft portion (421), said shaft portions (421) of said shafts (42) respectively engaging with said fixing hole ( 411) and said fixing recess (412) of said fixing element (41). Hinge according to claim 8, further characterized in that said fixing element (41) furthermore has two fixing slots (413) which are respectively formed on said opposite end surfaces thereof, each of said axes (42) also having a rim part (423) that is formed with a groove (422), said grooves (422) of said axes (42) being respectively aligned with said fixing grooves (413) of said fixing element (41), so that one of said end portions (322) of said torsion spring (32) of each of said force providing units (3) extending through said gap (422) of said corresponding axis (42) engages with said corresponding fixing slot (413) of said fixing element (41). 10. Hinge according to any of claims 1 to 6, characterized in that each of said first cylinders (211) has two internal limiting planes (2111) that are formed on an internal surrounding surface thereof, including each of said power supply units (3) a tubular element (31) that is inserted in said first and second cylinders (211,221) and that can rotate together with said first blade (21), said tubular element (31) presenting each of said power supply units (3) two outer limiting planes that are formed on an outer surrounding surface thereof and respectively abut against said inner limiting planes (2111) of at least one of said first cylinders (211) . Hinge according to claim 10, further characterized in that said tubular element (31) of at least one of said power supply units (3) includes a first section of tube (311), and a second section of tube (311). 312) abutting against said first tube section (311), a joint between said first tube section (311) and said second tube section (312) being located within one of said first cylinders (211).