TWI554674B - Hinge structure - Google Patents

Description

Hinge structure

The invention relates to a "hinge structure", especially when the hinge body and the movable seat are opened and closed, the free stroke and the buffer stroke can be generated at an appropriate angle, and the impact and volume of the opening and closing door panels are reduced. Features.

In order to eliminate the impact force and volume generated by the furniture door panel on the furniture body when closing, the damper device is often installed between the door panel and the body of the furniture, thereby slowing down the closing speed of the furniture door panel and reducing the door panel. The purpose of closing the impact force and the volume is that the existing hinge is automatically switched to the pop-open state after the door panel is opened by about 0°~60°, and when it is to be closed, a pressure greater than the self-elastic force of the hinge is applied from the maximum opening angle of the door leaf. When the door is closed to about 60°~0°, it will automatically switch to the slow closed state, achieving the purpose of soft and silent closing.

However, the prior art as described above has the effect of silent closure, but does not take into account that when the door panel is opened, the hinge self-elastic force will generate a huge impact force combined with the weight of the door panel and the self-elastic angle, and the impact force will be transmitted to the hinge body. The joint between the furniture and the furniture, which seriously affects the service life of the hinge and the furniture. On the other hand, the conventional hinge has a torque angle of the hinged state in the closed state due to improper distribution of the hinge spring retracting force, and the opening process is minimal. The maximum torque angle will make the spring extremely elastic fatigue, causing the spring retraction force to rapidly decrease, even making The spring body is broken, which results in the lack of practicality of the product.

In view of this, the inventors have been engaged in the manufacturing development and design experience of related products for many years, and after detailed design and careful evaluation, the present invention has finally become practical.

(1) A conventional hinge, when the hinge is opened, the self-elastic force of the hinge will generate a huge impact force combined with the weight of the door panel and the self-elastic angle, and the impact force will be transmitted to the joint between the hinge body and the furniture, thereby seriously affecting the hinge and the furniture. The service life.

(2) Conventional hinges, due to the improper distribution of the hinge spring retraction force, the torque angle in the closed state is the smallest, and the torsion angle is the largest during the opening process, which will make the spring extremely elastic fatigue, resulting in the recovery of the spring. The pulling force is rapidly declining, and even the spring body is broken, and the lack of practicality of the product is formed.

The present invention provides a hinge structure, comprising: a hinge body, the hinge body is pivotally provided with a buffering member, the buffering member has a telescopic rod protruding therefrom, and the front end of the telescopic rod is pivotally connected with a swinging member through a shaft bolt, The oscillating member is provided with a first pivot hole, a second pivot hole and a third pivot hole. The first, second and third pivot holes are arranged in a triangle and are arranged at equal intervals. The first pivot hole is for the shaft. bolt The first main shaft, the second shaft, the third shaft and the fourth shaft are sequentially disposed on the side of the telescopic rod, and the first shaft is used for the swinging direction. The second pivot hole of the member is pivoted, and a bottom wall surface is disposed under the third shaft; and a linking member is disposed through the first through hole, the second through hole and the third through hole, and is in a direction of the third through hole Extending a transmission portion, the transmission portion is provided with a transmission hole, and the linkage member is connected to the swinging member through a connecting member, the connecting member is provided with a first connecting hole and a second connecting hole through a shaft bolt Passing through the third pivot hole and the first connecting hole, the pivoting connection member is disposed on the swinging member, and the second pivoting hole is passed through the first through hole and the second connecting hole through the first bolt and the second connecting hole, and the pivoting member is connected to the linking member. a splicing block, the splicing block is provided with a first pivoting hole and a second pivoting hole, and has a receiving groove for placing the linking member in the accommodating groove and passing through a positioning pin Passing through the second pivot hole and the third through hole, the engaging block can be coupled to the linking member, and the first pivot hole pair is In the second through hole, the first pivot hole and the second through hole are disposed for the third shaft to be pivotally positioned on the hinge body; an elastic member having a base, and the base is fixed on both sides The unit is respectively provided with an elastic block, and the top of the elastic block extends with an abutting end and a bottom extending a supporting end, and the fixing unit is provided with a fitting hole to provide a second shaft piercing position of the hinge body, and the elastic The abutting end of the block is fixed to the bottom surface of the engaging block and the supporting end is fixed to the bottom wall surface, and the bottom surface of the engaging block is arched, thereby allowing the abutting end of the elastic block to follow the arch of the bottom surface The curved surface is slipped; the hinge body and the movable seat can be pivoted to form a freely adjustable position and a buffering shape. In the free stroke, the telescopic rod of the cushioning member is shortened, and The abutting end of the elastic block and the supporting end are in a pressed state, and the abutting end is continuous against the bottom surface of the engaging block. In the buffering process, the telescopic rod of the cushioning member is in an extended position. Further, the abutting end and the supporting end of the elastic block are in an outer tension state, and the abutting end is abutting against a bottom edge of the engaging block; and a movable seat is recessed with a downward receiving recess. The receiving recess defines a first pivoting hole, a second pivoting hole and a third pivoting hole on the front side, and the rocker arm can be coupled to the movable seat and the hinge body through the rocker arm, the upper and lower ends of the rocker arm Each of the two sides is respectively bent and provided with a joint portion and a pivoting portion, wherein the pivoting portion is provided for the fourth shaft of the hinge body, and the two pivot portions are spaced apart from the two joint portions, and are disposed at two An accommodating space is formed between the pivoting portion and the joint portion, so that the linking member can be installed in the accommodating space, and is placed together in the accommodating recess, through a pin through the first pivoting hole and the transmitting portion The upper drive hole is configured to enable the linkage member to be disposed on the movable seat, and the latch extends to have a curved latch, the bent latch is connected to the joint portion and the other latch through the second pivot hole The upper portion is disposed on the third pivot hole, and further extends a bending type pin joint assembly portion to the second pivot hole, thereby obtaining a hinge Structure.

(1) The present invention provides a hinge structure, wherein the linkage member is coupled to the telescopic rod of the cushioning member through a swinging member, and the transmission portion of the linkage member is coupled to the movable seat end, and the linkage member is connected to the third shaft. The rod pivots for the shaft, and the second shaft of the hinge body is provided with an elastic member, and the abutting end and the supporting end of the elastic block of the elastic member respectively abut against the bottom surface of the engaging block and the hinge body The bottom wall surface, when the hinge body and the movable seat are opened and closed by the position change of the abutting end contacting the engaging block, can generate a free angle and a buffering shape with an appropriate angle, thereby achieving a lower opening and closing. The function of door impact and volume.

(2) The present invention provides a hinge structure, since the abutting end and the abutting end of the elastic block extend on the same side, thereby allowing the elastic block to form a small torque change during the opening and closing process of the hinge, and Through the change of the abutting end against the position of the engaging block, the elastic force of the elastic block is appropriately distributed, so as to avoid elastic fatigue of the elastic block of the elastic member, thereby significantly improving the service life of the elastic member and achieving the function of improving the utility of the hinge. .

Part of the invention:

(10) ‧‧‧Hinge body

(11) ‧‧‧ cushioning parts

(110)‧‧‧ Telescopic rod

(111)‧‧‧ shaft bolt

(12) ‧‧‧ directional parts

(120)‧‧‧First pivot hole

(121)‧‧‧Second pivot hole

(122)‧‧‧ Third pivot hole

(13)‧‧‧First shaft

(14)‧‧‧Second shaft

(15)‧‧‧ Third shaft

(150) ‧‧‧ bottom wall

(16)‧‧‧fourth shaft

(17)‧‧‧Connecting parts

(170)‧‧‧First connection hole

(171)‧‧‧Second connection hole

(20)‧‧‧ linkages

(200)‧‧‧First perforation

(201)‧‧‧Second perforation

(202)‧‧‧ Third perforation

(21)‧‧‧Transmission Department

(210)‧‧‧Transmission holes

(22)‧‧‧Clamping notches

(30) ‧‧‧卡合块

(300) ‧‧‧ bottom

(301) ‧‧‧ bottom edge

(31)‧‧‧First pivot hole

(32)‧‧‧Second pivot hole

(33) ‧‧‧ accommodating slots

(34) ‧ ‧ Locating pins

(40)‧‧‧Flexible parts

(41) ‧ ‧ pedestal

(42) ‧‧‧Fixed units

(420)‧‧‧ Socket holes

(43) ‧‧‧Elastic blocks

(430) ‧‧‧Abutment

(431) ‧‧‧Support

(50) ‧‧‧ activity seat

(51) ‧ ‧ accommodating notches

(52) ‧‧‧First pivot hole

(53)‧‧‧Second pivot hole

(54) ‧‧‧ third pivot hole

(55) ‧‧‧ rocker arm

(550) ‧‧‧ pivot

(551) ‧ ‧ joints

(552)‧‧‧ accommodating space

(56)‧‧‧Tratch

(57)‧‧‧bend bolt

Fig. 1 is a perspective assembled view of the present invention.

Fig. 2 is a perspective exploded view of the present invention.

Fig. 3 is a perspective view showing the state in which the present invention is completed.

Figure 4: A partial enlarged view of Figure 3.

Figure 5 is a schematic illustration of the perspective actuation of the present invention.

Fig. 6 is a partial enlarged view of Fig. 5.

Figure 7 is a schematic perspective view of the buffer state of the present invention.

Figure 8 is a perspective view showing the closed state of the present invention.

In order to enable your review committee to have a better understanding and understanding of the purpose, features and effects of the present invention, please refer to the following [Simplified Description of the Drawings] for details: First, please see the first and second figures. a hinge structure comprising: a hinge body (10), a linkage (20), a snap block (30), an elastic member (40) and a movable seat (50), The hinge body (10) is pivotally provided with a buffering member (11). The buffering member (11) has a telescopic rod (110) protruding therefrom. The front end of the telescopic rod (110) is pivotally connected to the pendulum through a shaft bolt (111). The first member (12), the first pivot hole (120), a second pivot hole (121) and a third pivot hole (122), the first, second and third pivots The holes (120) (121) (122) are arranged in a triangular shape and are arranged at equal intervals. The first pivot hole (120) is configured by the pivot pin group for the shaft pin (111) to be pierced, and the hinge body (10) is stretched and contracted. The rod (110) side is sequentially provided with a first shaft (13), a second shaft (14), a third shaft (15) and a fourth shaft (16), and the first shaft ( 13) pivoting the second pivot hole (121) of the swinging member (12), and providing a bottom wall surface (150) under the third shaft (15); a linking member (20), the linking member (20) a first through hole (200), a second through hole (201) and a third through hole (202), and a transmission portion (21) extending in the direction of the third hole (202), in the transmission portion (21) The transmission member (20) is connected to the swinging member (12) through a connecting member (17), and the connecting member (17) is provided with a connecting member (17) A connecting hole (170) and a second connecting hole (171) pass through the third pivot hole (122) and the first connecting hole (170) through a shaft pin (111), and the pivoting connection member (17) is The oscillating member (12) is further passed through the first through hole (200) and the second connecting hole (171) through a pivot pin (111), and the pivoting connecting member (17) is disposed on the linking member (20). The bottom surface of the second through hole (201) of the linking member (20) is concavely formed with an engaging recess (22); a latching block (30), the engaging block (30) is provided with a first through hole a pivoting hole (31) and a second pivoting hole (32), and having a receiving groove (33) for placing the linking member (20) in the receiving groove (33) and passing through a positioning pin ( 34) passing through the second pivot hole (32) and the third through hole (202), the binding block (30) can be coupled to the linking member (20), and the first pivot hole (31) is aligned In the second through hole (201), the first pivot hole (31) and the second through hole (201) are provided for the third shaft (15) to be pivotally positioned at the hinge body (10); an elastic member ( 40), the elastic member (40) has a base (41), the base (41) is respectively connected with an elastic block (43) through the fixing unit (42), and the top of the elastic block (43) has an abutting end (430) and a bottom extending a fixing end (431), the fixing unit (42) is provided with a fitting hole (420) to provide a second shaft (14) of the hinge body (10) to pass through the setting position, and the elastic block (43) is abutted The bottom surface (300) of the engaging block (30) and the supporting end (431) are fixed to the bottom wall surface (150) by the end (430), and the bottom surface (300) of the engaging block (30) is arched. An arc shape, whereby the abutting end (430) of the elastic block (43) can slide along the curved curved surface of the bottom surface (300); a movable seat (50), the movable seat (50) is concavely provided with a direction The receiving recess (51) has a first pivoting hole (52), a second pivoting hole (53) and a third pivoting hole (54) extending through the front side. ), through a rocker arm (55), the movable seat (50) and the hinge body (10) can be combined, and the upper and lower ends of the rocker arm (55) are respectively bent and provided with a joint portion (551) and a pivot. a knot portion (550) for the fourth shaft (16) of the hinge body (10) to be pierced, and the two pivot portions (550) and the two joint portions (551) are maintained therebetween Separately, an accommodating space (552) is formed between the two pivoting portions (550) and the joint portion (551), so that the linking member (20) can be mounted in the accommodating space (552) and placed together In the accommodating recess (51), through the first pivot hole (52) and the transmission hole (210) on the transmission portion (21) through a pin (56), the linkage member (20) can be assembled. It is disposed on the movable seat (50), and the latch (56) extends with a bent latch (57). The bent latch (57) is connected to the joint through the second pivot hole (53). And the other latch (56) is disposed above the third pivoting hole (54), and also extends a curved latch (57) to the pivotal joint (551) of the second pivoting hole (53). According to the above structure, the movable seat (50) can be slowly leaned toward the hinge main body (10), thereby achieving the effect of not emitting a loud sound and colliding damage.

The combination of the structure, please see the picture shown in Figure 1 to Figure 3, first of all the hinge The pendulum member (12) of the main body (10) is pivotally assembled to the telescopic rod (110) of the cushioning member (11) by a first pivot hole (120), and the pendulum member (12) is coupled to the second pivot hole (121) a first shaft (13) pivotally disposed on the hinge body (10), the fastener (20) is first placed in the receiving groove (33) of the engaging block (30), and transmitted through the third through hole (202) A positioning pin (34) is pivotally disposed on the second pivot hole (32) of the engaging block (30), and the receiving groove (33) of the engaging block (30) forms a convex curved bottom surface, and It can be positioned in its engaging recess (22) when combined with the linking member (20), thereby achieving the function of improving assembly convenience, and then the linking member (20) is pivoted through the first through hole (200) through a shaft pin (111). The second connecting hole (171) is disposed in the connecting member (17), and the connecting member (17) is pivoted to the third pivot of the pendulum member (12) through the first connecting hole (170) through a shaft pin (111). The hole (122) is finally aligned with the first pivot hole (31) of the engaging block (30) by the second through hole (201) of the linking member (20) to be pivoted to the third of the hinge body (10). The shaft (15) has an elastic member (40) pivotally assembled to the second shaft (14) of the hinge body (10) by a sleeve hole (420), and the abutting end (430) of the elastic block (43) Retaining the support end (431) separately The bottom surface (300) of the engaging block (30) and the bottom wall surface (150) of the hinge body (10) are finally pivoted to the fourth of the hinge body (10) by the pivoting portion (550) of the rocker arm (55). The joint portion (551) of the shaft (16) and the rocker arm (55) is pivotally assembled to the second pivot hole (53) of the movable seat (50) through the bending pin (57), and the linking member (20) extends The transmission hole (210) of the transmission portion (21) is pivotally assembled to the first pivot hole (52) of the movable seat (50) through the bolt (56), thereby being able to pass through the buffer member (11) and the linkage member ( 20) The interlocking relationship between the elastic member (40), the rocker arm (55) and the movable seat (50) reaches the purpose of using the hinge, and accordingly, the combiner is completed.

The actual action and the effect, continue to be viewed from Figure 3 to Figure 8. The angle between the hinge body (10) and the movable seat (50) is between 180° and 123°. The main body (10) and the movable seat (50) can freely adjust the fixed angle, and the hinge main body (10) and the movable seat (50) The angle between 123° and 90° is the buffer stroke. The movable seat (50) can slowly form an angle of 90° with the hinge body (10). The hinge body (10) and the movable seat (50) The opening can be relatively pivoted to form an open state of 180°. In the open state, the telescopic rod (110) of the cushioning member (11) is in a shortened position, and the elastic block (43) of the elastic member (40) is The abutting end (430) is pressed against the abutting end (431), and the abutting end (430) is abutted against the bottom surface (300) of the engaging block (30), which will cause the elastic block (43) to face the hinge The second shaft (14) of the main body (10) is pushed in the direction, so that the elastic block (43) cannot push the engaging block (30) to drive the linking member (20), so that the hinge can be kept in the open state; When the seat (50) is rotated and closed relative to the hinge body (10), the transmission portion (21) and the rocker arm (55) of the linkage (20) of the movable seat (50) are respectively inserted into the pin (56) and bent. The type of pin (57) swings upwardly from the rotating shaft, and the transmission portion (21) and the rocker arm (55) are respectively a second shaft (14) and a fourth shaft (16) of the hinge body (10) during the swinging process. ) to move the shaft, at this time, because the elastic block (43) of the elastic member (40) continues to face The second shaft (14) of the hinge body (10) is pushed in the direction, so that the linkage (20) can maintain the force balance, and the hinge is kept open again, and the hinge body (10) and the movable seat can be freely adjusted. (50) fixed angle; and when the movable seat (50) is continuously closed (123° to 90°), the abutting end (430) of the elastic block (43) of the elastic member (40) is caused by the engaging block (30) The curved surface of the bottom surface (300) slides to the bottom edge (301), which will cause the elastic force of the elastic block (43) to generate torque with respect to the second shaft (14) of the hinge body (10), thereby transmitting elasticity. The block (43) pushes the engaging block (30) to drive the linking member (20) to swing, and the linking member (20) drags the swinging member (12) through the connecting member (17) during the swinging process. The swinging member (12) is swung in the direction of the bottom wall surface (150) with the first shaft (13) as a rotating shaft, and the telescopic rod (110) of the cushioning member (11) is extended to extend the cushioning member (11). ) to achieve the purpose of providing the movable seat (50) closed buffer, to reduce the door closing rush The function of the force and volume.

By the structure of the above specific implementation force, the following benefits can be obtained: (1) the linkage member (20) is interlocked with the telescopic rod (110) of the cushioning member (11) through the swinging member (12), and is linked The transmission portion (21) of the member (20) is connected to the end of the movable seat (50), and the linkage member (20) pivots with the third shaft (15) as an axis, so that the hinge body (10) The second shaft (14) is provided with an elastic member (40), and the abutting end (430) and the supporting end (431) of the elastic block (43) of the elastic member (40) respectively abut the engaging block ( 30) The bottom surface (300) and the bottom wall surface (150) of the hinge body (10), the hinge body (10) and the movable seat (50) are changed by the position of the abutting end (430) contacting the engaging block (30). When performing the opening and closing action, the free-form and buffering modes with appropriate angles can be generated to achieve the function of reducing the impact and volume of the opening and closing of the door panel; (2) due to the supporting end of the elastic block (43) (431) and the abutting end (430) are extended on the same side, thereby allowing the elastic block (43) to form a small torque change during the opening and closing of the hinge, and can be abutted against the abutting end (430). The position of the snap block (30) changes, and the elastic block is appropriately allocated (43) Stretch, be avoided (40) of the resilient member the resilient block (43) elastic fatigue, and thus able to significantly increase the usable life of the elastic member, serve to achieve the promotion of practical hinge function.

In summary, the name has indeed reached a breakthrough structural design, and has improved invention content, while at the same time achieving industrial use and progress, and the invention is not found in any publication, but also novel, When complying with the provisions of the relevant laws and regulations of the Patent Law, please file an invention patent in accordance with the law, and ask the examination committee of the bureau to grant legal patent rights.

The above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto; that is, the average variation of the scope of the patent application according to the present invention is Modifications are still within the scope of the invention.

(10) ‧‧‧Hinge body

(11) ‧‧‧ cushioning parts

(110)‧‧‧ Telescopic rod

(111)‧‧‧ shaft bolt

(12) ‧‧‧ directional parts

(120)‧‧‧First pivot hole

(121)‧‧‧Second pivot hole

(122)‧‧‧ Third pivot hole

(13)‧‧‧First shaft

(14)‧‧‧Second shaft

(15)‧‧‧ Third shaft

(150) ‧‧‧ bottom wall

(16)‧‧‧fourth shaft

(17)‧‧‧Connecting parts

(170)‧‧‧First connection hole

(171)‧‧‧Second connection hole

(20)‧‧‧ linkages

(200)‧‧‧First perforation

(201)‧‧‧Second perforation

(202)‧‧‧ Third perforation

(21)‧‧‧Transmission Department

(210)‧‧‧Transmission holes

(22)‧‧‧Clamping notches

(30) ‧‧‧卡合块

(300) ‧‧‧ bottom

(301) ‧‧‧ bottom edge

(31)‧‧‧First pivot hole

(32)‧‧‧Second pivot hole

(33) ‧‧‧ accommodating slots

(34) ‧ ‧ Locating pins

(40)‧‧‧Flexible parts

(41) ‧ ‧ pedestal

(42) ‧‧‧Fixed units

(420)‧‧‧ Socket holes

(43) ‧‧‧Elastic blocks

(430) ‧‧‧Abutment

(431) ‧‧‧Support

(50) ‧‧‧ activity seat

(51) ‧ ‧ accommodating notches

(52) ‧‧‧First pivot hole

(53)‧‧‧Second pivot hole

(54) ‧‧‧ third pivot hole

(55) ‧‧‧ rocker arm

(550) ‧‧‧ pivot

(551) ‧ ‧ joints

(552)‧‧‧ accommodating space

(56)‧‧‧Tratch

(57)‧‧‧bend bolt

Claims (3)

A hinge structure includes: a hinge body, the hinge body is pivotally provided with a buffering member, the buffering member has a telescopic rod protruding therefrom, and the front end of the telescopic rod is pivotally connected with a swinging member through a shaft bolt, and the swinging member is provided a first pivot hole, a second pivot hole and a third pivot hole, wherein the first, second and third pivot holes are triangularly distributed and are disposed at equal intervals, and the first pivot hole is for the shaft pin to be worn Positioning the pivot group, the hinge main body is sequentially provided with a first shaft, a second shaft, a third shaft and a fourth shaft on the side of the telescopic rod, and the first shaft is used for the swinging member The two pivot holes are pivoted, and a bottom wall surface is disposed under the third shaft; a linkage member is provided with a first through hole, a second through hole and a third through hole, and a transmission extending in the third through hole direction a transmission hole is formed in the transmission portion, and the linkage member is connected to the swinging member through a connecting member, the connecting member is provided with a first connecting hole and a second connecting hole, and passes through a shaft bolt through the first The three pivot holes and the first connecting hole are capable of pivoting the connecting member on the swinging member, The first pivoting member and the second connecting hole are configured to be able to pivot the connecting member to the linking member; and the engaging block is configured to extend through the first pivoting hole and the second pivoting a hole having a receiving groove for placing the linking member in the receiving groove and passing through a positioning pin through the second pivoting hole and the third through hole, so as to be able to bond the engaging block to the linking member, and then Aligning the first pivot hole with the second through hole, the first pivot hole and the second punching hole are disposed for the third shaft to be pivotally positioned on the hinge body; an elastic member having a base The two sides of the base are respectively connected with an elastic block through the fixing unit, and the top of the elastic block extends with an abutting end and a bottom extending a supporting end, the fixing The unit is provided with a sleeve hole to provide a second shaft insertion setting position of the hinge body, and the abutting end of the elastic block is fixed to the bottom surface of the engaging block and the supporting end against the bottom wall surface, the engaging block The bottom surface is arched, so that the abutting end of the elastic block can slide along the curved curved surface of the bottom surface, and the hinge body and the movable seat can be pivoted relative to each other to form a freely adjustable position. And a buffering process, in the free stroke, the telescopic rod of the buffering member is in a shortened position, and the abutting end and the supporting end of the elastic block are in a pressed state, and the abutting end is continuous against the engaging block. a bottom surface, in the buffering process, the telescopic rod of the buffering member is in an extended position, and the abutting end and the supporting end of the elastic block are in an outwardly stretched state, and the abutting end is fastened to the bottom edge of the engaging block; a movable seat, the movable seat recessed with a downward receiving recess, the receiving recess is provided with a first pivoting hole, a second pivoting hole and a third pivoting hole through the front side, A rocker arm can be combined with the movable seat and the hinge body, and the upper and lower ends of the rocker arm are respectively bent and pivoted And the joint portion, the pivoting portion is provided for the fourth shaft of the hinge body, and the two pivot portions are spaced apart from the two joint portions, and an accommodation is formed between the two pivot portions and the joint portion. Space, the linkage member can be installed in the accommodating space, and placed together in the accommodating recess, through a pin through the first pivot hole and the transmission hole on the transmission portion, the linkage member can be assembled In the movable seat, the latch further has a bent latch, the bent latch is connected to the joint through the second pivot hole, and the other plug is inserted through the third pivot hole, and Extending a bending type pin pivot joint portion to the second pivot hole. According to the hinge structure of claim 1, wherein the bottom surface of the second perforation of the linking member is concavely formed with an engaging recess, and the receiving groove of the engaging block forms a convex curved bottom. Face, and can be positioned in its engagement recess when combined with the linkage. The hinge structure according to the first aspect of the invention, wherein the linkage member is composed of three sheets of independently separable thin members.