JP2020045610A - Long braking hinge - Google Patents

Abstract

【Task】
The present invention proposes a long hinge that can be accurately and easily attached to a horizontally long movable body, and is also aesthetically pleasing.
[Solution]
Each of the braking hinge portions has barrel portions 5 and 7 at the connection center and left and right leaves 6 and 8. Two or more projections 30 are formed on both leaves of each braking hinge portion 2, and two plates 3 are formed. , 3 are provided with straight through-holes 32 corresponding to the projections 30 in a straight line, and the through-holes 32 of the plates 3, 3 are fitted with the projections 30 on the leaves 6, 8 of the braking hinge portions 2. Then, each braking hinge is caulked to both plates.
[Selection diagram] Fig. 1

Description

  The present invention relates to a long hinge that can be accurately and easily attached to a horizontally long movable body, is relatively easy to manufacture even if it is long, and is also aesthetically pleasing.

  In a conventional metal hinge, two leaves are rotatably connected to each other by a shaft inserted in a series of barrels, and one of the leaves is fixed to a lid and the other to a main body with a wood screw or a nail. . When a metal hinge of this kind is mounted horizontally, as in the case of a keyboard cover of a grand piano or an openable solid, when the load of the lid is applied to the leaf, the lid cannot be stopped at an arbitrary opening angle, and the lid cannot be stopped. If you release your hand with the partially open, it will be fully opened or closed as before. This opening / closing operation is performed in an impact manner, so that the user may injure the user by stuffing his / her finger into the lid, and may easily damage the lid or the main body.

  On the other hand, the existing braking hinge portion can avoid the impact opening and closing like a conventional metal hinge, and can open and close the lid quietly. JP-A-53-140857, JP-A-9-217545, and JP-A-2008-14058 filed by the present applicant disclose such brake hinge portions. By attaching the brake hinge, the lid of furniture and fittings can be opened and closed gently, and the lid can be stopped at any opening angle, so that the user can avoid jamming the lid with his fingers and damaging the main body .

  Regarding the existing braking hinge, the hinge disclosed in Japanese Utility Model Laid-Open Publication No. 53-140857 tightens the rotating shaft with a metal member, so that the rotating shaft is hardly sufficiently braked and undesired metal rubbing noise is generated. Lacks durability. The hinges disclosed in JP-A-9-217545 and JP-A-2008-14058 are provided with a braking member, a holding fitting, and a tightening screw in an intermediate barrel portion, and these are projected from leaves to make the mounting portion of the hinge a person-friendly. It is not aesthetically pleasing when it gets wet.

JP-A-53-140857 JP-A-9-217545 JP 2008-14058 A

  As is apparent from Japanese Patent Application Laid-Open No. 2008-14058, the existing braking hinge portion is short with an intermediate barrel portion on one leaf and a barrel portion on both ends on the other leaf. If the braking hinge portion is short, if a mounting portion such as a rotary window or a keyboard cover of a grand piano is long, a large number of brake hinge portions are to be arranged side by side. However, when installing a large number of braking hinges side by side, it is very difficult to align the shaft axes of the hinges in a straight line, and if the shaft axes do not exactly match, the hinge opening / closing operation will occur. If it does not become smooth and the shaft axis is slightly displaced, the opening and closing operation will gradually deteriorate after installation. The hinge installation work requires a long time to accurately match the axes of a plurality of shafts at present, when the number of skilled workers has decreased, and complaints often occur after the hinge is installed.

  In the short hinge disclosed in Japanese Patent Application Laid-Open No. 2008-14058, it is necessary to drive the shaft into the cylindrical brake plug in order to press-fit the shaft into the brake plug when assembling the hinge. The shaft driving operation is relatively simple when the brake plug is relatively short as in the above-mentioned publication, but is difficult when a large number of brake plugs are arranged in series like a long hinge. Thus, the work of pressing the shaft into two or more brake plugs spaced apart becomes inefficient. In addition, it is not aesthetically preferable to dispose a large number of short braking hinges at appropriate intervals at a long mounting location.

  The present invention has been proposed in order to improve the above-mentioned problems relating to the conventional braking hinge portion, and the torque adjustment is very easy, and the brake capable of being easily attached to a horizontally long movable body is provided. It is intended to provide a large hinge. It is another object of the present invention to provide an aesthetically pleasing brakeable long hinge.

  In the long hinge capable of being braked according to the present invention, a plurality of braking hinges having the same shape are linearly connected by two elongated plates. In the long hinge of the present invention, each brake hinge has an intermediate barrel portion and left and right end leaves, and at least two projections are formed on both leaves of each brake hinge, and two plates are formed. Is provided in a straight line with small through-holes corresponding to the respective projections. After arranging the brake hinge portions in the open state in a straight line, two plates are placed in parallel on the left and right leaves, and the small through-holes of the plates are provided. After the holes are fitted with the projections on the leaves of the respective brake hinge portions, each of the brake hinge portions is caulked to both plates by pressing and expanding the respective projections from above.

  In the long hinge capable of being braked according to the present invention, the brake plug of each brake hinge portion is a cylindrical body with a flange, and the length of the brake plug is preferably not more than half the length of the intermediate barrel portion, When each of the two brake plugs is fitted and locked from both ends of the intermediate barrel portion, the flange of each plug is interposed between the intermediate barrel portion and the end barrel portion. It is preferable that five or more braking hinges having the same shape are linearly connected by two elongated plates.

  Since the long hinge according to the present invention connects a plurality of short braking hinges, the torque can be accurately set by press-fitting the shaft for each of the braking hinges before the connection, whereby the torque adjustment is very easy, There is an advantage that the torque required by the customer can be easily and quickly adjusted. On the other hand, if a single braking hinge is designed to have the same length, it is difficult to directly press-fit the long shaft with the long braking plug, so that the diameter of the shaft is larger than the inner diameter of the braking plug. After the shaft is inserted into the brake plug and the whole is assembled, the brake plug is compressed by a press and adjusted to a predetermined torque value. This torque adjustment is very difficult, and when it is necessary to set an accurate torque, it is necessary to perform adjustment work many times. In the torque adjustment work, once remove the long hinge from the press and check the torque value Therefore, if this attachment / detachment operation is repeated many times, the number of working days and the number of man-hours are increased, and the cost of manufacturing the hinge increases.

  The long hinge according to the present invention can be attached much more easily and accurately than attaching a plurality of short hinges to a horizontally long movable body in a straight line. Some long hinges of the present invention have a total length of around 60 cm, and only one long hinge is used when mounting a grand piano such as a keyboard lid or an opening / closing lid when the mounting location is extremely long. The mounting work is simplified because the bolts need only be attached.

  In the long hinge according to the present invention, all the leaves are hidden by arranging the elongated plate on both leaves of each braking hinge, so that the long hinge is composed of a plurality of braking hinges. It is naturally concealed and has an appearance as one long hinge, so that it is aesthetically preferable. The braking hinge of the present invention is much easier than simply manufacturing a short existing braking hinge horizontally, and it is easy to assemble a long braking hinge almost as easily as a short braking hinge. it can.

It is a top view which shows the long hinge which can be braked concerning this invention. It is a top view which shows the back surface of the long hinge of FIG. FIG. 3 is a perspective view showing an elongated plate used in the present invention. FIG. 3 is a perspective view showing a braking hinge used in the present invention. FIG. 5 is an enlarged end view of the braking hinge part of FIG. 4. FIG. 5 is an enlarged cross-sectional view of the braking hinge section taken along the line AA of FIG. 4. FIG. 5 is an enlarged cross-sectional view of the braking hinge section taken along the line BB of FIG. 4. It is an expanded sectional view showing a brake plug of a brake hinge part.

  As shown in FIGS. 1 and 2, the long hinge 1 according to the present invention usually has a hinge length of 30 cm or more, and a hinge having a total length of about 60 cm can be manufactured. In the long hinge 1 of the present invention, a plurality of (five in FIGS. 1 and 2) braking hinges 2 are connected by two elongated plates 3, and the number of braking hinges 2 connected in parallel is Generally, the number is three or more, preferably five or more. If a small braking torque is desired, a normal metal hinge may be partially added or the mounting interval may be widened.

  Each braking hinge 2 used in the present invention has a first leaf 6 having an intermediate barrel 5 and a second leaf 8 having barrels 7, 7 on both ends, as illustrated in FIG. The first and second leaves 6 and 8 are provided with two or three mounting through holes 10 at equal intervals. Since the front end surface of the intermediate barrel portion 5 does not reach the leaf surface except for the central projecting piece 12, lateral gaps 14, 14 (FIG. 6) are formed between both end surfaces of the intermediate barrel portion 5 and the leaf surface. .

  The plastic braking plug 16 is preferably made of abrasion-resistant plastic colored in any color according to the application. The brake plug 16 is a cylindrical body with a flange 18 as shown in FIGS. 7 and 8, and it is preferable to provide a vertical ridge 20 on the outer peripheral surface. As shown in FIG. 7, the brake plugs 16, 16 are inserted from both end surfaces of the intermediate barrel portion 5, respectively, and are rotatable together with the first leaf 6. As shown in FIGS. 4 and 6, the brake plug 16 and the intermediate barrel portion 5 may be integrated by inserting a vertical ridge 20 formed on the outer peripheral surface of the plug into the lateral gaps 14, 14 of the intermediate barrel portion 5. The length of the vertical ridge 20 is substantially equal to the length of the horizontal gap 14. The outer diameter of the flange 18 is substantially the same as the outer diameter of the intermediate barrel 5. After the brake plug 16 is assembled, the inner peripheral surface of the plug can slide on the outer peripheral surface of the rear portion 24 of the shaft 22, and the outer peripheral surface of the plug rear portion 25 comes into close contact with the inner peripheral surface of the intermediate barrel portion 5.

  Usually, two metal shafts 22 are used for each braking hinge 2 as shown in FIG. The shaft 22 has an elongated cylindrical shape as shown, and has a grooved head portion 26, an intermediate portion 28 below the head portion, and a rear portion 24 having a smaller diameter than the head portion and the intermediate portion 28. In the grooved head 26, the diameter of the peak is slightly larger than the outer diameter of the intermediate portion 28 and the inner diameter of the end barrel portion 7. The shaft rear part 24 is slightly larger in diameter than the inner diameter of the brake plug 16.

  The two metal shafts 22 are fitted from the outer end surfaces of the barrel portions 7 on both ends of the second leaf 8, respectively. The grooved head 26 is driven into the end barrel 7 during assembly to be integrated with the barrel. The rear portions 24 of both shafts 22, 22 are press-fitted into the brake plug 16 and located in the intermediate barrel portion 5, so that the outer peripheral surface of the rear portion 24 of the shaft 22 and the inner peripheral surface of the brake plug 16 are in friction. The leaves 6 and 8 can be stopped at an arbitrary opening angle. On the other hand, the flange 18 of the brake plug 16 is located between the barrel portions 5 and 7 when assembling the hinge, as shown in FIGS. 3 and 7, and prevents the occurrence of metal rubbing noise due to direct contact between both barrel portions. I do.

  Each brake hinge 2 surrounds the outer peripheral surface of the brake plug 16 with the intermediate barrel 5 of the first leaf 6, so that the opening / closing operation is kept constant even when used for a long time. A single braking hinge 2 can withstand a load of about 3 to 15 kg acting on the opening and closing operation over the entire length of the braking plugs 16, and can withstand tens of thousands of opening and closing tests. The load that can be braked increases according to the number. The manufacturing cost of the brake hinge 2 is small, because the number of brake plugs 16 increases as compared with a metal hinge having substantially the same shape.

  In order to be applied to the long hinge 1, as shown in FIGS. 4 to 6, two or more upward circular projections 30 are protrudingly provided on both leaves 6, 8 of each braking hinge portion 2, and the circular projections are provided. Are located substantially between the through holes 10, 10, but the number and position of the projections can be arbitrarily set. On the other hand, as shown in FIG. 1, a pair of elongated plates 3 (FIG. 3) are provided with small through-holes 32 corresponding to the circular projections 30 for each of the individual braking hinges 2 and each leaf 6 , 8 are preferably provided.

  When the circular projections 30 of the braking hinge 2 are fitted into the small through-holes 32 of each set from below with respect to the elongated plate 3, the braking hinges can be stopped in parallel under both plates 3. In general, when three or more brake hinges 2 are stationary and arranged in parallel with the plates 3 and 3, even if the leaves 6 and 8 of each brake hinge 2 are close to the leaves 6 and 8 of the adjacent brake hinge 2, The leaves 6 and 8 have appropriate intervals so that they do not come into contact with each other (see FIG. 2).

  When manufacturing the long hinge 1, the plates 3, 3 are placed on the leaves 6, 8 of the fully opened braking hinge 2, and each circular projection 30 of the braking hinge is inserted into the small through hole 32 of the plate 3. When the center of each circular projection 30 is pressed by a known press machine after the fitting, the upper part of the projection expands to the periphery and is caulked to the small through-hole 32, and the braking hinge 2 can be fixed to the plates 3, 3. . If one brake hinge 2 is fixed, the next brake hinge 2 is crimped and finally a desired number of brake hinges 2 may be connected in parallel (see FIGS. 1 and 2).

  Since the long hinge 1 is manufactured by connecting a plurality of short braking hinges 2, the torque can be accurately set by press-fitting the shafts 22, 22 for each of the braking hinges 2 before the connection, so that torque adjustment is extremely difficult. The torque required by the customer can be set easily and quickly. The long hinge 1 has a length of 30 cm or more as shown in FIGS. 1 and 2, and is preferably applied to a case where the number of the connection braking hinges 2 is 5 or more. is there. The long hinge 1 can be easily mounted even by an unskilled worker because only one bolt needs to be bolted even when the mounting location is very long. It is also possible to apply to industrial use.

  Next, the present invention will be described based on examples, but the present invention is not limited to the examples. For the long hinge 1 that can be braked, the two elongated plates 3 are 33 cm long and their width is approximately equal to that of each leaf 6, 8 of the brake hinge 2. Each of the elongated plates 3 is provided with a small through hole 32 corresponding to the circular projection 30 for each of the five braking hinge portions 2, and a large through hole 34 that matches the through hole 10 for mounting each of the leaves 6 and 8. Is also provided.

  The five braking hinges 2 used are each 65 mm in length, and have a first leaf 6 having an intermediate barrel 5 and a second leaf 8 having barrels 7 on both ends. The first and second leaves 6 and 8 are provided with three mounting through holes 10 at equal intervals. In the both leaves 6 and 8, both leaves are pressed from the back side by a known press machine to project two upward circular projections 30, respectively, and the circular projections are located substantially between the through holes 10 and 10.

  In the first leaf 6, the front end surface of the extension portion serving as the intermediate barrel portion 5 is processed into a centrally projecting shape, and a rectangular hole 11 (FIG. 2) is provided at the base of the extension portion in parallel with the leaf. Is curved to form the intermediate barrel portion 5, the central projecting piece 12 of the extension enters the rectangular hole 11, and the shape of the intermediate barrel portion 5 is stabilized. Since the front end surface of the intermediate barrel portion 5 does not reach the leaf surface except for the central projecting piece 12, lateral gaps 14, 14 are formed between both end surfaces of the intermediate barrel portion 5 and the leaf surface.

  The plastic damping plug 16 is made of POM, which is a wear-resistant plastic colored black. The brake plug 16 is a cylindrical body with a flange 18 as shown in FIG. 8, and further has a vertical ridge 20 on the outer peripheral surface. In the brake plug 16, the inner diameter is slightly smaller than the outer diameter of the shaft 22, the outer diameter is slightly smaller than the inner diameter of the intermediate barrel portion 5, and the length is less than half the length of the intermediate barrel portion 5. . 4 and 7, the flange 18 of the brake plug 16 is located between the barrel portions 5, 7 when the hinge is assembled.

  As shown in FIG. 6, the cross section of the vertical ridge 20 of the brake plug 16 is surrounded by a tangent line extending outward from the holder peripheral surface and a straight line extending substantially parallel to the tangent line. The vertical protrusion 20 is slightly thicker because a braking torque acts thereon. It is preferable that the two brake plugs 16 be fitted into the intermediate barrel portion 5 because the tangential surfaces of the two brake plugs 16 contact the leaf surface, so that the plugs are less likely to rattle in the intermediate barrel portion 5.

  Two stainless steel shafts 22 are used for each braking hinge 2. The shaft 22 has a grooved head 26, an intermediate portion 28 below the head, and a rear portion 24 having a smaller diameter than the head and the intermediate portion 28. The grooved head 26 is formed by serration using a die or a roll. The diameter of the crest is slightly larger than the outer diameter of the intermediate portion 28 and the inner diameter of the end barrel portion 7.

  The two metal shafts 22 are fitted from the outer end surfaces of the barrel portions 7 on both ends of the second leaf 8, respectively. The rear portions 24 of both shafts 22, 22 are press-fitted into the brake plug 16 and located in the intermediate barrel portion 5, so that the outer peripheral surface of the rear portion 24 of the shaft 22 and the inner peripheral surface of the brake plug 16 are in friction. Face. The flange 18 of the brake plug 16 is located between the barrel portions 5 and 7 when assembling the hinge, and prevents generation of a metal rubbing noise caused by direct contact between the barrel portions.

  When manufacturing the long hinge 1, the plates 3, 3 are placed on the leaves 6, 8 of the fully opened braking hinge 2, and each circular projection 30 of the braking hinge is inserted into the small through hole 32 of the plate 3. When the center of each circular protrusion 30 is pressed by a known press machine after the fitting, the upper part of the protrusion expands to the periphery and is caulked to the small through-hole 32, so that the braking hinge 2 can be easily attached to the plates 3 and 3. Can be fixed. If one brake hinge 2 is fixed, the next brake hinge 2 is caulked and finally a desired number of brake hinges 2 are connected in parallel.

  In the long hinge 1, the large through hole 34 of the plate 3 matches the through hole 10 for attachment of the braking hinge 2, and each large through hole 34 serves as an attachment hole for the long hinge 1. With respect to one braking hinge 2, a load of about 3 to 15 kg weight acting at the time of opening / closing operation can be received over the entire length of the braking plugs 16, 16. When five braking hinges 2 are connected, about 15 to 75 kg weight is applied. Can receive loads. Since the long hinge 1 is manufactured by connecting five short brake hinges 2, the torque can be accurately set by press-fitting the shafts 22, 22 for each of the brake hinges 2 before the connection, and the torque adjustment is very large. Easy.

  As for the long hinge that can be braked, three brake hinges 2 obtained in the first embodiment and two metal hinges having the same shape as the brake hinge are used, and these are alternately arranged, similarly to the first embodiment. Link. This long hinge is cheaper than the long hinge 1 of the first embodiment, and can be used in applications where the load that can be braked is about 40 kg. This long hinge can accurately set the torque of the three braking hinge portions by press-fitting both shafts before connection, and the torque adjustment is very easy.

DESCRIPTION OF SYMBOLS 1 Long hinge 2 Braking hinge part 3,3 Slender plate 5 Intermediate barrel part 6 First leaf 7,7 End barrel part 8 Second leaf 16 Braking plug 22,22 Metal shaft 30,30 Projection 32,32 Small through hole

Claims (3)

  A brakeable long hinge in which a plurality of braking hinge portions having the same shape are linearly connected by two elongated plates, wherein each braking hinge portion has an intermediate barrel portion and left and right end leaves, At least two protrusions are formed on both leaves of each brake hinge, and two small plates are provided with small through holes corresponding to each protrusion in a straight line, and each brake hinge in an open state is formed in a straight line. Then, two plates are placed in parallel on the left and right leaves, and the small through holes of the plates are fitted with the protrusions on the leaves of each brake hinge, and then each protrusion is pressed with a press from above. A long hinge that can be braked by caulking each brake hinge part to both plates by expanding it.   In each brake hinge, the brake plug is a cylindrical body with a flange, the length of the brake plug is less than half the length of the intermediate barrel, and each two brake plugs are separated from both ends of the intermediate barrel. The hinge according to claim 1, wherein the flange of each plug is interposed between the intermediate barrel portion and the end barrel portion when fitted and locked.   The hinge according to claim 1, wherein five or more braking hinges having the same shape are connected in parallel by two elongated plates.

Images