JP7101985B2 - Long braking hinge - Google Patents

Description

The present invention relates to a long braking hinge that can be accurately and easily attached to a horizontally long movable body, is easy to assemble, and is aesthetically pleasing.

In a conventional metal hinge, two leaves are rotatably connected to each other by a shaft inserted into a barrel portion arranged in a one-to-two manner, and one of the leaves is attached to the lid and the other is attached to the main body with wood screws or nails. Stick. When this type of metal hinge is mounted horizontally as in the case of a grand piano keyboard lid or an open / close solid, the lid cannot be stopped at any opening angle when the load of the lid is applied to the leaf, and the lid cannot be stopped. If you release your hand with the closure partially open, it will be fully opened or closed as before. Since this opening / closing operation is performed shockingly, it is easy for the user to stuff his / her finger in the lid and injure him / her, or to damage the lid or the main body.

On the other hand, the existing braking hinge can avoid the shocking opening and closing like the conventional metal hinge, and can open and close the lid quietly. As this type of braking hinge, Japanese Patent Application Laid-Open No. 53-140857, Japanese Patent Application Laid-Open No. 9-217545, Japanese Patent Application Laid-Open No. 2008-7984, Japanese Patent Application Laid-Open No. 2008-14058 filed by the present applicant are disclosed. By attaching the braking hinge, the lid of furniture, fittings, etc. can be opened and closed quietly, and the lid can be stopped at an arbitrary opening angle, so that the user can avoid stuffing the lid with fingers or damaging the main body.

Regarding the existing braking hinge, the hinge disclosed in Jitsukaisho 53-140857 tightens the rotating shaft with a metal member, so that it is difficult to sufficiently brake the rotating shaft, and an unpleasant metal scraping noise is generated. It lacks durability. The hinges disclosed in JP-A-9-217545 and JP-A-2008-14058 are provided with a braking member, a holding metal fitting, and a tightening screw in the intermediate barrel portion, and these are projected from the leaf so that the mounting location of the hinge is noticeable. It is aesthetically unpleasant when it sticks to the surface. On the other hand, even if the hinge disclosed in Japanese Patent Application Laid-Open No. 2008-7984 is the same as a commercially available metal hinge in appearance, the shape of the shaft is complicated and it is easy to increase the cost, and it is difficult to increase the length of the hinge. be.

Jikkai Sho 53-140857 Japanese Unexamined Patent Publication No. 9-217545 Japanese Unexamined Patent Publication No. 2008-7984 JP-A-2008-14058

As is clear from JP-A-2008-14058 and JP-A-2008-7984, the existing braking hinge is short with an intermediate barrel portion on one leaf and barrel portions on both ends on the other leaf. If the braking hinges are short, many of them will be installed side by side if the mounting points are long, such as a rotating window or a keyboard lid of a grand piano. However, when installing a large number of braking hinges side by side, it is very difficult to align the shaft axes of each hinge in a straight line, and if the shaft axes do not match accurately, the hinge opening / closing operation will be smooth. If the shaft axis is slightly deviated, the opening / closing operation will gradually deteriorate after installation. Now that the number of skilled workers has decreased, it takes a long time to accurately align the axes of a plurality of shafts, and complaints often occur after the hinges are attached.

In the short hinges disclosed in JP-A-2008-14058 and JP-A-2008-7984, when assembling the hinge, the shaft is driven into the braking plug in order to press-fit the shaft into the cylindrical braking plug. Needs. The shaft driving operation is relatively easy when the braking plugs are relatively short as in the above-mentioned publication, but is difficult when a large number of braking plugs are lined up in a series such as a long hinge. In other words, the work of press-fitting the shaft into two or more braking plugs at intervals becomes inefficient. Further, in a long mounting location, if short braking hinges are closely arranged, the number increases and the hinge cost increases, and it is not aesthetically pleasing to arrange them at appropriate intervals.

The present invention has been proposed to improve the above-mentioned problems with conventional braking hinges, and an object of the present invention is to provide a long braking hinge that can be easily attached to a horizontally long movable body. There is. Another object of the present invention is to provide a long braking hinge that is aesthetically pleasing and relatively easy to assemble.

In the braking hinge according to the present invention, two or more first barrel portions are formed on the first leaf, and three or more second barrel portions that are staggered from the first barrel portion are formed on the second leaf. The plastic braking plug before tightening has an outer diameter smaller than the inner diameter of the first barrel portion and an inner diameter larger than the shaft diameter. This braking plug is fitted and locked in the first barrel portion, the shaft is arranged so as to penetrate the entire barrel portion, fixed holders are fitted in both ends of the shaft, and the brake plug is locked in the second barrel portion on the end side. After that, the braking plug is tightened inward through the first barrel portion by a press, and the inner peripheral surface of the braking plug comes into close contact with the shaft peripheral surface, so that the first leaf and the second leaf brake each other. Move.

In another braking hinge according to the present invention, four or more first barrel portions are formed on the elongated first leaf, and five or more second barrel portions are arranged in a staggered manner with the first barrel portion on the elongated second leaf. The plastic braking plug before tightening has an outer diameter smaller than the inner diameter of the first barrel portion and an inner diameter larger than the shaft diameter. Insert the two shafts from the first barrel at the end, fix the tip to the central connecting holder to unify them, and fit the fixing holders at both ends of the shaft to fit the second barrel at the end. Then, the braking plug is tightened inward through the first barrel portion by a press.

In the braking hinge of the present invention, the braking plug is preferably a cylindrical body with a flange, the length of the braking plug is less than half the length of the first barrel portion, and each of the two braking plugs is the first barrel. When fitted / locked from both ends of the portion, the flange of each plug is interposed between the first barrel portion and the second barrel portion. Further, it is preferable that a support holder having the same outer diameter as the connecting holder is fitted and locked in the second barrel portion, except for the barrel portions at both ends for accommodating the fixed holder and the central barrel portion for accommodating the connecting holder. Further, the first and second barrel portions are incomplete cylindrical shapes having a gap between them and the leaf surface, and the vertical protrusions of the braking plug, the fixing holder, the connecting holder and the supporting holder are inserted into the gap. Thereby, it is preferable to prevent the free rotation of the braking plug, the fixed holder, the connecting holder and the support holder.

The braking hinge according to the present invention can be attached to a horizontally long movable body much more accurately than attaching a plurality of short hinges in a straight line. Some long braking hinges have a total length of about 100 cm, and when mounting a grand piano keyboard lid or opening / closing lid when the mounting location is very long, use only one braking hinge to bolt. Since it only needs to be stopped, the installation work is easy and the overall hinge cost is low, which is aesthetically pleasing.

The braking hinge according to the present invention can be assembled relatively easily even if it is a long hinge, and it is cheaper than the case where ordinary short hinges are manufactured up to the same length. The braking hinge of the present invention is easy to assemble as a whole, and finally, the braking plug may be tightened inward through the first barrel portion by a press to exert the braking function.

It is a perspective view which shows the braking hinge which concerns on this invention. It is an exploded perspective view of the braking hinge of FIG. 1 which shows in the opposite direction. It is a side view which shows the braking hinge of FIG. It is a cross-sectional view cut along the line AA of FIG. It is a cross-sectional view cut along the line BB of FIG. It is a cross-sectional view cut along the line CC of FIG. It is an enlarged cross-sectional view which shows two braking plugs before tightening which were inserted into the 1st barrel part.

The braking hinge 1 according to the present invention has a long length as shown in FIGS. 1 to 3, and is generally assumed to have a hinge length of 30 cm or more, and a hinge having a total length of about 100 cm can be manufactured. In the braking hinge 1 of the present invention, the first leaf 3 has two or more (4 in FIG. 1) first barrel portions 7 and the second leaf 5 has three or more (5 in FIG. 1) second barrel portions. The minimum standard is to have 8, and if the total number of barrels is 5 or more, it is the subject of the present invention. In this specification, the first leaf and the second leaf use the two leaves separately for the sake of explanation.

As illustrated in FIGS. 1 to 3, the braking hinge 1 is composed of the first and second leaves 3 and 5 which are flat and have the same length, and a large number of mounting bolt holes 10 are defined in both leaves 3 and 5. Provide at intervals. A plurality of barrel portions 7 and 8 curved in a cylindrical shape on one side of both leaves 3 and 5 are formed so as to face each other, and are inconsistent with, for example, four first barrel portions 7 having the same shape. 5 second barrel portions 8 having the same shape are arranged in the same shape. The lengths of the barrel portions 7 and 8 may be determined individually, and may be determined according to the desired length of the braking hinge 1.

The first barrel portion 7 of the first leaf 3 has an incomplete cylindrical shape as shown in FIGS. 2 and 6, and gaps 12 and 14 are provided between the first barrel portion and the leaf surface on the lower side of each barrel portion. As illustrated in FIGS. 2 and 7, cylindrical braking plugs 16 are fitted into the first barrel portion 7 from one end or both ends thereof, respectively. As shown in FIG. 7, the length of the braking plug 16 is usually set to half or less of the length of the first barrel portion 7, and two braking plugs are fitted and engaged from both ends of the first barrel portion 7. Stop it.

The plastic braking plug 16 is usually made of abrasion-resistant plastic, and is preferably made of polyacetal (POM) or polyamide colored in white or black. As shown in FIGS. 2 and 7, the braking plug 16 is a cylindrical body with a flange 17, and it is preferable that the vertical protrusion 20 is further provided on the outer peripheral surface. As shown in FIG. 7, the outer diameter of the braking plug 16 is smaller than the inner diameter of the first barrel portion 7 before tightening, and the inner diameter thereof is larger than the diameter of the shaft 18. Therefore, it is easy to fit the braking plug 16 into the first barrel portion 7, the vertical protrusion 20 of the plug is fitted into the gap 12 or 14 and locked (see FIG. 7), and the shaft 18 is further fitted. It is also easy to insert it into the braking plug 16.

After assembling the hinge, each braking plug 16 is tightened inward through the first barrel portion 7 by a known press, and the inner peripheral surface of the braking plug comes into close contact with the shaft peripheral surface, so that the first leaf The 3 and the 2nd leaf 5 can brake and rotate with each other. As is clear from FIGS. 1 and 3, the flange 17 of the braking plug 16 is located between the barrel portions 7 and 8 when the hinge is assembled, and prevents the generation of metal scraping noise due to the direct contact between the barrel portions. The outer diameter of the flange 17 is substantially the same as the outer diameter of the second barrel portion 8.

The second barrel portion 8 in the second leaf 5 has an incomplete cylindrical shape as shown in FIGS. 2, 4 and 5, and a gap 21 is provided between the second barrel portion and the leaf surface on the lower side of each barrel portion. The gap 21 (FIG. 4) between the barrel portions 8a and 8a at both ends is formed inward from the outer end surface of the barrel. As shown in FIG. 2, cylindrical plastic holders 22, 24, and 26 are fitted into the second barrel portion 8, respectively. The lengths of the holders 22, 24, and 26 are usually set to be equal to or less than the length of the second barrel portion 8, and the outer diameter thereof is smaller than the inner diameter of the second barrel portion 8, so that each holder is set to the second barrel portion 8. It is easy to fit inside.

The holders 22, 24, and 26 are usually preferably made of polyacetal or polyamide colored in black or the like. It is preferable to provide vertical protrusions 28 on the outer peripheral surfaces of the holders 22, 24, 26, and when each holder is fitted into the second barrel portion 8, the vertical protrusions 28 of the holder enter the gap 21 and enter the second barrel portion 8. Locked. The support holder 24 has a cylindrical shape whose inner diameter is slightly larger than the diameter of the shaft 18. When the support holder 24 has only one shaft 18 and the connecting holder 26 is not used, the support holder 24 is preferably arranged in all the second barrel portions 8 except for the barrel portions 8a and 8a at both ends.

The fixed holders 22 and 22, preferably made of polyamide, are arranged in the second barrel portions 8a and 8a at both ends as shown in FIG. As shown in FIG. 4, the fixed holder 22 is provided with a bottomed center hole 30 having a deformed cross section such as a hexagon, and the shaft is formed by fitting the deformed cross sections 32 having the same shape at both ends of the shaft into the center hole. The 18 rotates and stops together with the second leaf 5 via the fixed holder 22 and the second barrel portion 8. The depth of the deformed cross section of the bottomed center hole 30 is usually substantially equal to the length of the deformed cross section 32 of the shaft 18.

The connecting holder 26 may have the same outer shape as the support holder 24, and is used when the braking hinge 1 is long and two shafts 18 are connected and inserted as shown in FIG. If there is, it is not necessary to use it, and if this braking hinge is very long, about 100 cm, it may be divided into three or more. As shown in FIG. 5, the connecting holder 26 is provided with a through center hole 34 having a deformed cross section such as a hexagon, and the shaft 18, by fitting the deformed cross section 36 of the same shape at the tip of the shaft into the center hole. 18 is unified. When there are two shafts 18 having the same size as shown in FIG. 2, the connecting holder 26 is arranged in the second barrel portion 8 at the center.

The shaft 18 is made of a metal such as stainless steel and is an elongated cylindrical round bar as shown in FIG. 1, and if one is used, a hexagonal or other irregular cross-sectional portion 32 is formed at both ends. As shown in FIG. 2, when two shafts 18 are used, both shafts 18 and 18 may be set to have the same length, and a hexagonal or other irregular cross-sectional portion 36 is formed at the tip portions of both shafts. .. The total length of both irregular cross-sections 36 may be about the same as the length of the connecting holder 26. The total length of both shafts 18 is a length substantially corresponding to the lengths of the leaves 3 and 5.

When manufacturing the braking hinge 1, two or more barrel portions 7 are formed on the first leaf 3, and three or more second barrel portions 8 which are staggered from the first barrel portion 7 are formed on the second leaf 5. It is formed and curved in a cylindrical shape so as to form a gap 12, 14 or 21 for each barrel portion. For each second barrel portion 8, two braking plugs 16 are fitted into the barrel portion from both ends of the barrel (see FIGS. 2 and 7). Next, with respect to the second barrel portion 8, the support holder 24 and the connecting holder 26 are fitted into the barrel portions, respectively, except for the barrel portions at both ends. When such fitting is completed, the first and second barrel portions 7 and 8 are arranged in a staggered linear pattern.

The shaft 18 is inserted through all the barrel portions in a straight line after the barrel portions 7 and 8 are arranged in a staggered manner. When there are two shafts 18, both shafts are inserted from the second barrel portions 8a and 8a at both ends, and the deformed cross-sectional portion 36 at the tip thereof is fitted into the center hole 34 of the connecting holder 26 to fit the shaft 18, 18 is unified. Insertion of the shaft 18 is easy because the diameter of the shaft is smaller than the inner diameter of each braking plug 16 and the support holder 24.

After inserting the shaft 18, the fixed holders 22 and 22 are fitted into the second barrel portions 8a and 8a at both ends, and the deformed cross-sectional portion 32 of the shaft 18 is pushed into the bottomed center hole 30 of the fixed holder to be fitted. By doing so, the fixed holder 22 is integrated with the shaft 18, and the shaft rotates and stops together with the second leaf 5. It is preferable that the second barrel portions 8a and 8a at both ends are slightly deformed so that the fixed holder 22 does not fall off. As described above, the braking hinge 1 can be easily assembled even if it has a long length.

After the assembly of the braking hinge 1 is completed, each braking plug 16 is tightened inward by compressing and deforming the first barrel portion 7 of the first leaf 3 inward by a known press, and the inner circumference of the braking plug is tightened. The surface is brought into close contact with the peripheral surface of the shaft 18. At this time, in order to increase the braking torque, it is desirable that the number of the first barrel portions 7 is large and long, and when the braking torque can be relatively small, only a part of the first barrel portions 7 is compressed and deformed. It may be.

The braking hinge 1 is generally about 30 cm in length, and can be attached more accurately and easily than attaching a plurality of short hinges in a straight line to a horizontally long movable body such as a rotating window. Some long braking hinges 1 have a total length of about 100 cm, and when the mounting location is long, only one brake hinge 1 needs to be used, which simplifies the mounting work and is aesthetically pleasing. .. The long braking hinges can be applied to industrial applications as well as fittings and furniture.

Next, the present invention will be described based on examples, but the present invention is not limited to the examples. The braking hinge 1 has a long length of 30 cm as shown in FIG. The first leaf 3 has four barrel portions 7 having a width of 37 mm, and the second leaf 5 has five barrel portions 8 having a width of 28 mm. The barrel portions 7 and 8 are arranged in a staggered manner.

The first barrel portion 7 and the second barrel portion 8 are both incomplete cylindrical shapes as shown in FIGS. 4 to 6. In the first barrel portion 7, a gap 21 is provided between the first barrel portion 7 and the leaf surface, the length of the gap 21 is shorter than that of the barrel portion 7, and the lower side of the rear barrel is substantially in contact with the leaf surface. In the barrel portions 8a and 8a at both ends, a gap 21 (FIG. 4) is formed inward from the outer end surface of the barrel, and is usually wider than the gap shown in FIG. In the second barrel portion 8, gaps 12 and 14 are provided between the second barrel portion 8 and the leaf surface, the lengths of the gaps 12 and 14 are shorter than those of the barrel portion 7, and the lower barrel portion in the middle is substantially in contact with the leaf surface. ..

The braking plug 16 is made of POM, which is a white-colored abrasion-resistant plastic. As shown in FIGS. 2 and 7, the braking plug 16 is a cylindrical body with a flange 17, and a vertical protrusion 20 is further provided on the outer peripheral surface, and the vertical protrusion extends rearward from the lower surface of the flange along the plug axis. As shown in FIG. 6, the cross section of the vertical protrusion 20 is surrounded by a tangent line extending outward from the peripheral surface of the plug and a straight line extending substantially parallel to the tangent line. When the vertical protrusion 20 is fitted into the first barrel portion 7, the tangential surface thereof comes into contact with the leaf surface, so that the braking plug 16 is less likely to rattle in the barrel portion 7, which is preferable.

As shown in FIG. 7, the length of the braking plug 16 is less than half the length of the first barrel portion 7, and two braking plugs are fitted and locked from both ends of the first barrel portion 7. .. Before tightening, the outer diameter of the braking plug 16 is smaller than the inner diameter of the first barrel portion 7, and the inner diameter thereof is larger than the diameter of the shaft 18.

The fixed holder 22 is made of black polyamide, and the support holder 24 and the connecting holder 26 are made of black polyacetal. The holders 22, 24, and 26 have a length of about 20 mm, and vertical protrusions 28 are provided on the outer peripheral surface thereof. The support holder 24 has a cylindrical shape whose inner diameter is slightly larger than the diameter of the shaft 18. The support holder 24 is arranged in two second barrel portions 8 excluding the barrel portions 8a and 8a at both ends and the intermediate barrel portion.

The fixed holders 22 and 22 are arranged in the second barrel portions 8a and 8a at both ends as shown in FIG. As shown in FIG. 4, the fixed holder 22 is provided with a bottomed center hole 30 having a hexagonal cross section, and the shaft 18 is fixed by inserting the irregular cross section 32 having the same shape at both ends of the shaft into the center hole. It rotates and stops together with the second leaf 5 via the holder 22.

The connecting holder 26 has the same outer shape as the support holder 24, and is used when connecting the two shafts 18 as shown in FIG. As shown in FIG. 5, the connecting holder 26 is provided with a through center hole 34 having a hexagonal cross section, and the shafts 18 and 18 are set to 1 by fitting a deformed cross section 36 having the same shape at the tip of the shaft into the center hole. Make it a book. The connecting holder 26 is arranged in the central second barrel portion 8 as shown in FIG.

As shown in FIGS. 4 and 5, the cross section of the vertical protrusions 28 of the holders 22, 24, and 26 is surrounded by a tangent line extending outward from the peripheral surface of the holder and a straight line extending substantially parallel to the tangent line. It is almost the same as the vertical protrusion 20. Generally, the vertical protrusion 28 of the fixed holder 22 is thicker than the vertical protrusion 20 and the vertical protrusion 28 of the holders 24 and 26 because the braking torque acts on the vertical protrusion 28. When the holders 22, 24, and 26 are fitted into the second barrel portions 8, 8a, the tangential surfaces thereof come into contact with the leaf surface, so that these holders are less likely to rattle in the barrel portions 8, 8a, which is preferable.

The two shafts 18 are inserted through all the barrel portions in a straight line after the barrel portions 7 and 8 are arranged in a staggered manner. Both shafts are inserted from the second barrel portions 8a and 8a at both ends, and the deformed cross-sectional portion 36 at the tip of the shaft is fitted into the central hole 34 of the connecting holder 26 to unify the shafts 18 and 18. Insertion of the shaft 18 is easy because the diameter of the shaft is smaller than the inner diameter of each braking plug 16 and the support holder 24.

When manufacturing the braking hinge 1, two braking plugs 16 are fitted into the barrel portion from both ends of the barrel for each first barrel portion 7 (see FIG. 7). Next, with respect to the second barrel portion 8, the support holder 24 and the connecting holder 26 are fitted into the barrel portions, respectively, except for the barrel portions at both ends. When such fitting is completed, the first and second barrel portions 7 and 8 are arranged in a staggered linear pattern.

The shaft 18 is inserted into all the barrel portions after the barrel portions 7 and 8 are arranged in a straight line in a staggered manner. The two shafts 18 are inserted from the second barrel portions 8a and 8a at both ends, and the deformed cross-sectional portions 36 thereof are fitted into the central holes 34 of the connecting holder 26 to unify the shafts 18 and 18. The fixed holders 22 and 22 are fitted into the second barrel portions 8a and 8a at both ends, and the fixed holder 22 is fitted into the shaft 18 by pushing the deformed cross-sectional portion 32 of the shaft 18 into the bottomed center hole 30 thereof. Integrate with. Further, the second barrel portions 8a and 8a at both ends are prevented from falling off by slightly deforming the outer peripheral ends thereof.

After the assembly of the braking hinge 1 is completed, each braking plug 16 is tightened inward by compressing and deforming the first barrel portion 7 of the first leaf 3 inward by a known press, and the inner circumference of the braking plug is tightened. The surface is brought into close contact with the peripheral surface of the shaft 18.

In the second embodiment, the length of the braking hinge is 165 mm. The first leaf has two first barrel portions having a width of 37 mm, and the second leaf 5 has three second barrel portions having a width of 28 mm. The shapes of the first and second barrel portions are substantially the same as those in the first embodiment, and all the barrel portions are arranged in a staggered manner. One shaft is used, and the first and second barrel portions are arranged in a staggered manner and then inserted into all the barrel portions.

The two fixed holders are fitted by inserting the shaft through all the barrel portions, then fitting them into the second barrel portions at both ends, and pushing the deformed cross-sectional portions at both ends of the shaft into the bottomed center holes. , The fixed holder is integrated with the shaft. After the assembly of the braking hinge is completed, each braking plug is tightened inward by compressing and deforming the first barrel portion of the first leaf inward by a known press, and the inner peripheral surface of the braking plug is shafted. Make close contact with the peripheral surface of the brake.

1 Braking hinge 3 1st leaf 5 2nd leaf 7 1st barrel part 8 2nd barrel part 8a, 8a 2nd barrel part at both ends 12, 14 Gap between 1st barrel part 16 Braking plug 18, 18 Shaft 20 Vertical protrusion 21 Gap in the second barrel 22 Fixed holder 24 Support holder 26 Connecting holder 28 Vertical protrusion

Claims (5)

Two or more first barrel parts are formed on the first leaf, three or more second barrel parts that are staggered from the first barrel part are formed on the second leaf, and the plastic braking plug before tightening is the first. It has an outer diameter smaller than the inner diameter of one barrel part and an inner diameter larger than the shaft diameter, the braking plug is installed in the first barrel part, and the shaft is arranged so as to penetrate the entire barrel part, and further, the shaft The fixed holders fitted to both ends are fastened to the second barrel on the end side, and the inner peripheral surface of the braking plug after tightening comes into close contact with the shaft peripheral surface, so that the first leaf and the second leaf A long braking hinge that rotates with each other. The elongated first leaf is formed with four or more first barrel portions, and the elongated second leaf is formed with five or more second barrel portions that are staggered from the first barrel portion, and is a plastic braking plug before tightening. Has an outer diameter smaller than the inner diameter of the first barrel portion and an inner diameter larger than the shaft diameter, the braking plug is installed in the first barrel portion, and the shaft consists of two shafts, each in the first barrel portion. Both inserted shafts are straightened by the connecting holder, and the fixed holders fitted to both ends of the shaft are fixed to the second barrel on the end side, and the inner peripheral surface of the braking plug after tightening is the shaft circumference. A long braking hinge in which the first leaf and the second leaf brake and rotate with each other when in close contact with the surface. The braking plug is a cylindrical body with a flange, and the length of the braking plug is less than half the length of the first barrel portion, and it is stopped by inserting two braking plugs from both ends of the first barrel portion. The hinge according to claim 1 or 2, which is worn and the flange of each plug is interposed between the first barrel portion and the second barrel portion. A support holder is attached to the second barrel portion except for both end barrel portions and a central barrel portion that lock the fixed holder, and the support holder or a connection having the same outer diameter as the support holder is attached to the central barrel portion. The hinge according to claim 1 or 2, wherein the holder is attached . The first and second barrels are incompletely cylindrical with a gap between them and the leaf surface, by inserting the vertical protrusions of the braking plug, fixed holder and support holder into this gap. The hinge according to claim 1 or 2, which prevents free rotation of the braking plug, the fixed holder and the support holder.

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