WO2021020989A1 - Fastening pivot for the connection of elements that are movable in relation to one another - Google Patents
Fastening pivot for the connection of elements that are movable in relation to one another Download PDFInfo
- Publication number
- WO2021020989A1 WO2021020989A1 PCT/RU2019/000760 RU2019000760W WO2021020989A1 WO 2021020989 A1 WO2021020989 A1 WO 2021020989A1 RU 2019000760 W RU2019000760 W RU 2019000760W WO 2021020989 A1 WO2021020989 A1 WO 2021020989A1
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- WO
- WIPO (PCT)
- Prior art keywords
- sleeve
- thread
- bushing
- protrusion
- elements
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B1/00—Hand knives with adjustable blade; Pocket knives
Definitions
- the invention relates to a means of fastening two or more elements movable relative to each other and can be used to connect parts movable relative to each other in order to eliminate backlash between us and reliably connect them to each other.
- a fastening axis for connecting a knife blade with a handle, containing a cylindrical bushing, a screw and a retainer made in the form of a lock washer, the bushing has an axial threaded hole for connection with a screw, a thread is made on the outer surface of the sleeve for connection with a retainer (see US2012047746 (A1) published 03/01/2012).
- the closest solution to the proposed invention is a fastening axis for connecting a knife blade with a handle, containing two cylindrical bushings and a fastening element, while each bushing has a radial protrusion at one end, directed from the axis of the bushing, the first bushing is designed to be installed in the axial hole of the second bushings and has an internal thread for connection to the fastener (see US20070137047 (A1), published 06.21.2007).
- the disadvantage of the closest solution is the unreliable fixation of the elements movable relative to each other (the blade and the handle), the inability to adjust the pressing force of the handle parts between each other, the presence of backlash in the connection of the blade to the handle, the possibility of spontaneous unscrewing.
- the technical problem solved by the proposed invention is to increase the reliability of the connection of movable elements relative to each other.
- the technical result of the invention is the elimination of backlash between the elements movable relative to each other, connected to each other, an increase in the reliability of fixing the connected elements by eliminating the spontaneous unwinding of the elements of the fastening axis, ensuring the possibility of adjusting the pressing force of the elements movable relative to each other with the simultaneous fixation of such a force ...
- the fastening axis for connecting elements movable relative to each other contains two cylindrical bushings with axial holes and a threaded fastener with an external thread
- each bushing has on the outer surface at one end of it at least one protrusion directed from the axis of the sleeve
- the first sleeve has an internal thread for connection with a threaded fastener
- the second sleeve has an internal thread
- the first sleeve also has an external thread for connection with the internal thread of the second sleeve and has at least one through longitudinal slot that is directed along the axis and open from the side of the free end
- the threaded fastener has on the outer surface an annular protrusion with a diameter that increases in the direction from the thread.
- the internal thread of the second sleeve may be formed on at least a portion of its internal surface.
- the internal thread of the first sleeve may be formed on at least a portion of its internal surface.
- outer thread of the first sleeve may be formed on at least a portion of its outer surface.
- the length of the second sleeve may be less than, equal to, or greater than the length of the first sleeve.
- the collar of the threaded fastener may be tapered or hemispherical.
- the axial bore of the first sleeve can be made through.
- first sleeve can have a through hole on its cylindrical surface mating with the slot.
- the second sleeve may have an external thread formed on at least part of its surface on the side of the protrusion.
- the outer diameter of the second sleeve may be stepped, with the large diameter step located on the side of the projection, and the outer thread of the second sleeve may be formed on the large diameter step.
- Fig. 1 shows an assembled fastening shaft when the length of the second sleeve is shorter than the length of the first sleeve; in fig. 2 shows the assembly axle when the length the second sleeve is equal to the length of the first sleeve; in fig. 3 shows the mounting shaft assembly when the length of the second sleeve is greater than the length of the first sleeve; in fig. 4 shows an axial section of the first sleeve; in fig. 5 shows an axial section of the second sleeve; in fig. 6 shows an axle fastener; in fig. 7 shows an example of the application of the proposed mounting axis, for example, for connecting a knife handle to a blade; in fig. 8 shows a section through the junction of the knife handle with the blade.
- the proposed fastening axle is designed to connect elements (parts of products, parts) that are movable relative to each other and can be used, for example, to connect a knife blade with a knife handle, to connect two parts (halves) of scissors, to connect a bicycle wheel to a frame (with a fork) , for connecting the blade of a rotary mower, as well as for connecting any other elements, parts, parts, assemblies that rotate relative to each other, and which must be reliably connected to each other without backlash and with an effort that ensures free rotation (rotational movement) of each other relative to a friend.
- the proposed fastening axis for connecting elements movable relative to each other contains two cylindrical bushings 1 and 2 with axial holes and a threaded fastener 3 with an external thread.
- the first bushing 1 is intended for installation inside (in the axial hole) of the second bushing 2
- the fastening element 3 is intended for installation inside (in the axial bore) of the first bushing 1.
- the installation of the bushing 1 in the bushing 2 is carried out by means of a threaded connection
- the installation of the fastening element 3 in the sleeve 1 is also carried out by means of a threaded connection.
- the first sleeve 1 (Fig. 4) has an axial bore, which can be made either through or blind.
- the sleeve 1 on the outer surface at one end (end) has at least one radial protrusion 4 directed away from the axis of the sleeve 1.
- the protrusion 4 can be made annular with a cylindrical outer surface, or annular with recesses on the outer side (not shown ) formed along the perimeter (arcuate recesses, or rectangular, or triangular, forming a star-shaped protrusion 4, or another shape).
- the protrusion 4 can also have a different shape and can be made, for example, in the form of a bend (not shown) directed away from the axis of the sleeve 1, while the number of such bends can be two, three or more, which are evenly (or unevenly) located along the perimeter of the sleeve 1.
- the protrusion 4 is intended for contact with the surface of one of the connected elements of the product (the first element) in order to press against another connected element of the product (the second element, or to other elements connected to it - the second, third and etc. to the elements of the product in order to press against each other all elements located on the fastening axis).
- the sleeve 1 on its outer surface has an external thread 5, which can be formed either on a part of the outer cylindrical surface and the beginning of which lies at the opposite end (end) from the projection 4, or can be formed on the entire outer cylindrical surface from one of its free end to projection 4.
- the bushing 1 also has an internal thread 6 on its inner cylindrical surface, which can also be formed either on a part of the inner cylindrical surface and the beginning of which lies at the end with side of the protrusion 4 or at the opposite end, or it can be formed on the entire inner cylindrical surface (both when making the axial hole blind and through).
- the bushing 1 has at least one through longitudinal slot 7 formed along the bushing 1, directed along the axis of the bushing 1 and open from the end free from the projection 4.
- the slot 7 can be formed either, for example, to the middle of the bushing 1, or slightly less than to the middle, or slightly more than to the middle, or to the protrusion 4.
- the slot 7 allows the sleeve 1 to expand (expand) when interacting with the fastening element 3.
- the number of slots 7 can be more than one, for example, two, three or more, the lengths of which are either equal to each other or differ from each other. When the number of slots 7 is two, they are preferably located diametrically opposite to each other.
- a through hole 8 can be formed, mated with the slot 7, while the axis of the hole 8 is either perpendicular to the axis of the sleeve 1, or lies at a slight angle to the axis of the sleeve 1.
- the number of holes 8 (in the case when the number of slots 7 is more one) is either less or equal to the number of slots 7, and the corresponding hole 8 is mated with the corresponding slot 7.
- the diameter of the hole 8 is greater than the width of the slot 7, thereby ensuring free expansion of the sleeve 1 during interaction (contact) with the fastening element 3 without material stress ...
- the second bushing 2 (Fig. 5) has an axial through hole.
- the sleeve 2 on the outer surface at one end (end) has at least one radial protrusion 9 directed away from the axis of the sleeve 1.
- the protrusion 9 can be made annular with a cylindrical outer surface, or annular with grooves on the outer side (not shown) formed along the perimeter (arcuate grooves, or rectangular, or triangular, forming a star-shaped protrusion 4, or another shape) ...
- the protrusion 9 can also have a different shape and can be made, for example, in the form of a bend (not shown) directed away from the axis of the sleeve 2, while the number of such bends can be two, three or more, which are evenly (or unevenly) located along the perimeter of the sleeve 1.
- the protrusion 9 is intended for contact with the surface of another element of the product (second element) connected to the first element of the product in order to press the second element against the first element.
- the sleeve 2 has an internal thread 10 on its inner cylindrical surface, which can be formed either on a part of the inner cylindrical surface, or can be formed on the entire inner cylindrical surface from one end to the other. If the internal thread 10 is made on a part of the inner cylindrical surface of the sleeve 2, it can start either at the end with a projection 9, or at the opposite end (without projection 9), or it can be formed in the middle part of the sleeve 2 between its ends.
- the internal thread 10 of the sleeve 2 is intended for connection with the external thread 5 of the sleeve 1.
- the sleeve 2 on its outer surface can have an external thread (not shown), which can be formed either on a part of the outer cylindrical surface and the beginning of which lies at the end from the side of the projection 9 , or can be formed on the entire outer cylindrical surface from one of its free end to the protrusion 9.
- the outer thread of the sleeve 2 is intended for connection with the second element of the product (connected elements).
- the outer cylindrical surface of the second sleeve 2 can be made stepped (not shown), i.e. the outer diameter of the second sleeve 2 is stepped in such a way that a step with a large diameter is located on the side of the projection 9.
- the external thread of the second sleeve 2 can be formed on a step with a large diameter of the sleeve 2.
- Threaded fastening element 3 is a screw, or a stud, or a threaded rod, while in any embodiment of the fastening element 3 it has a threaded rod portion 11 and an annular protrusion 12 formed on the outer surface.
- the thread 11 is intended for connection with the internal thread 6 of the sleeve 1.
- the protrusion 12 is made expanding along the axis of the fastening element away from the thread 11, i.e. the annular protrusion has a diameter that increases in the direction away from the threads 11.
- the protrusion 12 can be either conical or hemispherical.
- the protrusion 12 is designed to interact with the sleeve 1 (with the free end of the sleeve 1) and acts as a wedge, i.e. during the axial movement of the fastening element 3 inside the sleeve 1 due to the threaded connection (thread 11 with thread 6), the protrusion 12 abuts against the free end of the sleeve 1 and expands (wedges with its conical or hemispherical surface) the sleeve 1 due to the slot (s) 7. the protrusion 12 of the fastening element expands the sleeve 1 and it is fixed inside the sleeve 2.
- the proposed mounting axle is as follows.
- the fastening axle contains two bushings 1 and 2, while the bushing 1 is installed inside the bushing 2 using a threaded connection (threads 5, 10). In this case, the projections 4 and 9 are at a distance from each other.
- the fastening element 3 by means of a threaded connection (threads 6, 11) is installed inside the bushing 1 and its protrusion 12 contacts the free end of the bushing 1 (unclamping the bushing 1) and is located on the side of the protrusion 9.
- the protrusion 12 when screwing in the thread 11 of the fastening element 3 into the thread 6 of the sleeve 1, it rests more strongly against the end of the sleeve 1, wedging (expanding) the sleeve 1 and fixing the threaded connection of the first 1 and second 2 sleeves.
- the length of the second sleeve 2 can be either less than the length of the first sleeve 1 (Fig. 1), or equal to it (Fig. 2), or greater (Fig. 3).
- the fastening element can be a rod, on a part of the surface of which a thread 11 is formed, behind it is an annular protrusion 12, behind the protrusion 12 is a part of the rod without a thread 11, and behind it a part, designed to interact with the tool for screwing the fastener 3.
- Bushings 1 and 2 on the side of projections 4 and 9, respectively, can have special sections (projections-recesses, not shown), which are designed to interact with the tool for screwing bushings 1 and 2 (with each other).
- the proposed fastening axle can be used in any products where it is necessary to ensure the elimination of backlash between the elements moving relative to each other and to ensure their reliable connection without the risk of accidental disconnection.
- the knife handle can have two parts 14, 15 with a groove to accommodate the blade 13. Between the parts 14 and 15 of the handle is placed blade. In this case, the two parts 14, 15 of the handle and the blade 13 have a hole for installing the second sleeve 2. The diameter of such holes is equal to the outer diameter of the sleeve 2, or slightly more than the outer diameter of the sleeve 2. Thus, the sleeve 2 is installed in the holes of the first part located in series 14 of the knife handle, blade 13 and the second part 15 of the knife handle.
- the length of the sleeve 2 should be less than the sum of the thicknesses of the parts 14, 15 of the handle and the blade 13 (and the sum of the thicknesses of the sliding washers, if any, are not shown in the figures, i.e. the length of the sleeve 2 is less than the closest distance between the outer surfaces of the parts 14 and 15 at the junction with the blade 13).
- the protrusion 9 contacts the outer surface of the first part 14 of the knife handle. From the side of the second part 15 of the knife handle, the first sleeve 1 is installed inside the sleeve 2, i.e. using a screwing tool, the sleeve 1 is screwed into the sleeve 2.
- the protrusion 4 contacts the outer surface of the second part 15 of the knife handle.
- the two parts of the handle are pressed against each other, providing that pressing force at which all backlash between the parts 14, 15 of the handle and the blade 13 is eliminated and the blade 13 moves freely relative to the handle without jamming. This makes it possible to adjust the pressing force.
- the fastening element 3 is screwed into the sleeve 1 until the projection 12 contacts the end of the sleeve 1 opposite the projection 4.
- the fastening element 3 is screwed into the sleeve 1 so that the protrusion 12, due to its expanding (conical or hemispherical) surface, began to wedge (unclench) the sleeve 1 until reliable fixation of the sleeve 1 relative to the sleeve 2 (threads 5, 10) is ensured due to the fact that the outer surface of the sleeve 1 abuts against the inner surface of the sleeve 2.
- this connection of the blade 13 with the knife handle backlash between the handle and the blade 13, because the ability to adjust the pressing force.
- Reliable fixation of the connection is provided due to the elimination of spontaneous unwinding of the elements of the fastening axle due to wedging of the sleeve 1 inside the sleeve 2.
- the hole in which the sleeve 2 is installed can be made stepped (not shown).
- the diameter of the larger step of the opening of the handle part 14 is made equal to or greater than the outer diameter of the protrusion 9
- the diameter of the larger step of the hole of the portion 15 of the handle is made equal to or greater than the outer diameter of the protrusion 4.
- protrusions 4 and 9 are hidden (recessed) in the hole respectively of the part 14 and 15 of the handle and the end face of the corresponding sleeve 1, 2 is flush with the outer surface of the handle, which ensures ease of use due to the absence of protruding parts.
- the holes in which the sleeve 2 is installed can be made stepped for placement in large steps of the holes of the projections 4 and 9 accordingly.
- the proposed invention a reliable connection of the elements of any products that are movable relative to each other is ensured, and reliable fixation of the elements of the proposed fastening axis is provided without spontaneous unwinding. It is also ensured that all possible backlashes between the connected elements of the products that are movable relative to each other are eliminated due to the possibility of adjusting the pressing force and fixing such a force. Adjusting the pressing force allows you to provide such a circular (rotational) movement of the connected and movable elements relative to each other, which is necessary in each specific case for specific products.
- the use of the proposed fastening axis can be in any area where it is necessary to ensure the connection of elements (parts) moving relative to each other without backlash between them and without the danger of accidental disconnection of parts from each other due to spontaneous unwinding of the fastening axis elements.
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Abstract
A fastening pivot comprises two cylindrical bushings with axial bores, and a threaded fastening element with an external thread. Each of the bushings has on the outer face of one of its ends at least one flange oriented away from the axis of the bushing. The first bushing has an internal thread for connection to the threaded fastening element, and the second bushing has an internal thread. The first bushing also has an external thread for connection to the internal thread of the second bushing, and at least one longitudinal through slot that is oriented along the axis and is open from the free end. The threaded fastening element has on its outer face an annular flange with a diameter that increases in a direction away from the thread. This eliminates looseness between elements that are movable in relation to one another and prevents the elements of the fastening pivot from inadvertently unscrewing.
Description
Крепежная ось для соединения подвижных друг относительно друга элементов Fastening axle for connecting elements moving relative to each other
ОБЛАСТЬ ТЕХНИКИ FIELD OF TECHNOLOGY
Изобретение относится к средством крепления двух или более подвижных относительно друг друга элементов и может быть использована для соединения подвижных относительно друг друга частей для устранения люфтов между нами и надежного соединения их друг с другом. The invention relates to a means of fastening two or more elements movable relative to each other and can be used to connect parts movable relative to each other in order to eliminate backlash between us and reliably connect them to each other.
УРОВЕНЬ ТЕХНИКИ LEVEL OF TECHNOLOGY
Из уровня техники известна крепежная ось для соединения лезвия ножа с рукояткой, содержащая цилиндрическую втулку, винт и фиксатор, выполненный в виде стопорной шайбы, втулка имеет осевое отверстие с резьбой для соединения с винтом, на внешней поверхности втулки выполнена резьба для соединения с фиксатором (см. US2012047746 (А1), опубликовано 01.03.2012). From the prior art, a fastening axis is known for connecting a knife blade with a handle, containing a cylindrical bushing, a screw and a retainer made in the form of a lock washer, the bushing has an axial threaded hole for connection with a screw, a thread is made on the outer surface of the sleeve for connection with a retainer (see US2012047746 (A1) published 03/01/2012).
Недостатком данного решения является необходимость итерационной регулировки глубины вкручивания втулки в рукоятку (плашку) для достижения свободного безлюфтового хода лезвия при полном закручивании фиксирующих элементов для исключения самопроизвольного откручивания. The disadvantage of this solution is the need for iterative adjustment of the depth of screwing the sleeve into the handle (die) to achieve a free backlash-free motion of the blade with full tightening of the fixing elements to prevent spontaneous unscrewing.
Наиболее близким решением к предложенному изобретению является крепежная ось для соединения лезвия ножа с рукояткой, содержащая две цилиндрические втулки и крепежный элемент, при этом каждая втулка имеет на одном своем торце радиальный выступ, направленный от оси втулки, первая втулка предназначена для установки в осевом отверстии второй втулки и имеет внутреннюю резьбу для соединения с крепежным элементом (см. US20070137047 (А1), опубликовано 21.06.2007).
Недостатком наиболее близкого решения является ненадежная фиксация подвижных относительно друг друга элементов (лезвия и рукоятки), отсутствие возможности регулировки усилия прижима частей рукоятки между собой, наличие люфтов в соединении лезвия с рукояткой, возможность самопроизвольного откручивания. The closest solution to the proposed invention is a fastening axis for connecting a knife blade with a handle, containing two cylindrical bushings and a fastening element, while each bushing has a radial protrusion at one end, directed from the axis of the bushing, the first bushing is designed to be installed in the axial hole of the second bushings and has an internal thread for connection to the fastener (see US20070137047 (A1), published 06.21.2007). The disadvantage of the closest solution is the unreliable fixation of the elements movable relative to each other (the blade and the handle), the inability to adjust the pressing force of the handle parts between each other, the presence of backlash in the connection of the blade to the handle, the possibility of spontaneous unscrewing.
СУЩНОСТЬ ИЗОБРЕТЕНИЯ SUMMARY OF THE INVENTION
Технической проблемой, решаемой предложенным изобретением, является повышение надежности соединения подвижных относительно друг друга элементов. The technical problem solved by the proposed invention is to increase the reliability of the connection of movable elements relative to each other.
Техническим результатом изобретения является исключение люфтов между подвижными друг относительно друга элементами, соединяемыми друг с другом, повышение надежности фиксации соединяемых элементов за счет исключения самопроизвольного раскручивания элементов крепежной оси, обеспечение возможности регулирования усилия прижатия друг к другу подвижных друг относительно друга элементов с одновременной фиксацией такого усилия. The technical result of the invention is the elimination of backlash between the elements movable relative to each other, connected to each other, an increase in the reliability of fixing the connected elements by eliminating the spontaneous unwinding of the elements of the fastening axis, ensuring the possibility of adjusting the pressing force of the elements movable relative to each other with the simultaneous fixation of such a force ...
Технический результат изобретения достигается благодаря тому, что крепежная ось для соединения подвижных друг относительно друга элементов содержит две цилиндрические втулки с осевыми отверстиями и резьбовой крепежный элемент с наружной резьбой, каждая втулка имеет на наружной поверхности на одном своем конце по меньше мере один выступ, направленный от оси втулки, а первая втулка имеет внутреннюю резьбу для соединения с резьбовым крепежным элементом, при этом вторая втулка имеет внутреннюю резьбу, а первая втулка имеет также внешнюю резьбу для соединения с внутренней резьбой второй втулки и имеет по меньше мере одну сквозную продольную прорезь, которая направлена вдоль оси и
открыта со стороны свободного конца, при этом резьбовой крепежный элемент имеет на наружной поверхности кольцевой выступ с диаметром, увеличивающимся в направлении от резьбы. The technical result of the invention is achieved due to the fact that the fastening axis for connecting elements movable relative to each other contains two cylindrical bushings with axial holes and a threaded fastener with an external thread, each bushing has on the outer surface at one end of it at least one protrusion directed from the axis of the sleeve, and the first sleeve has an internal thread for connection with a threaded fastener, while the second sleeve has an internal thread, and the first sleeve also has an external thread for connection with the internal thread of the second sleeve and has at least one through longitudinal slot that is directed along the axis and open from the side of the free end, while the threaded fastener has on the outer surface an annular protrusion with a diameter that increases in the direction from the thread.
Кроме того, внутренняя резьба второй втулки может быть образована на по меньшей мере части ее внутренней поверхности. In addition, the internal thread of the second sleeve may be formed on at least a portion of its internal surface.
Кроме того, внутренняя резьба первой втулки может быть образована на по меньшей мере части ее внутренней поверхности. In addition, the internal thread of the first sleeve may be formed on at least a portion of its internal surface.
Кроме того, внешняя резьба первой втулки может быть образована на по меньшей мере части ее внешней поверхности. In addition, the outer thread of the first sleeve may be formed on at least a portion of its outer surface.
Кроме того, длина второй втулки может быть меньше или равна, или больше длины первой втулки. In addition, the length of the second sleeve may be less than, equal to, or greater than the length of the first sleeve.
Кроме того, кольцевой выступ резьбового крепежного элемента может иметь коническую или полусферическую форму. In addition, the collar of the threaded fastener may be tapered or hemispherical.
Кроме того, осевое отверстие первой втулки может быть выполнено сквозным. In addition, the axial bore of the first sleeve can be made through.
Кроме того, первая втулка может иметь на своей цилиндрической поверхности сквозное отверстие, сопряженное с прорезью. In addition, the first sleeve can have a through hole on its cylindrical surface mating with the slot.
Кроме того, вторая втулка может иметь внешнюю резьбу, образованную на по меньшей мере части ее поверхности со стороны выступа. In addition, the second sleeve may have an external thread formed on at least part of its surface on the side of the protrusion.
Кроме того, внешний диаметр второй втулки может быть выполнен ступенчатым, при этом ступень с большим диаметром расположена со стороны выступа, а внешняя резьба второй втулки может быть образована на ступени с большим диаметром. In addition, the outer diameter of the second sleeve may be stepped, with the large diameter step located on the side of the projection, and the outer thread of the second sleeve may be formed on the large diameter step.
ПЕРЕЧЕНЬ ЧЕРТЕЖЕЙ LIST OF DRAWINGS
Изобретение поясняется чертежами, где на фиг. 1 показана крепежная ось в сборе, когда длина второй втулки меньшей длины первой втулки; на фиг. 2 показана крепежная ось в сборе, когда длина
второй втулки равна длине первой втулки; на фиг. 3 показана крепежная ось в сборе, когда длина второй втулки больше длины первой втулки; на фиг. 4 показан осевой разрез первой втулки; на фиг. 5 показан осевой разрез второй втулки; на фиг. 6 показан крепежный элемент оси; на фиг. 7 показан пример применения предложенной крепежной оси, например, для соединения рукоятки ножа с лезвием; на фиг. 8 показан разрез места соединения рукоятки ножа с лезвием. The invention is illustrated by drawings, where Fig. 1 shows an assembled fastening shaft when the length of the second sleeve is shorter than the length of the first sleeve; in fig. 2 shows the assembly axle when the length the second sleeve is equal to the length of the first sleeve; in fig. 3 shows the mounting shaft assembly when the length of the second sleeve is greater than the length of the first sleeve; in fig. 4 shows an axial section of the first sleeve; in fig. 5 shows an axial section of the second sleeve; in fig. 6 shows an axle fastener; in fig. 7 shows an example of the application of the proposed mounting axis, for example, for connecting a knife handle to a blade; in fig. 8 shows a section through the junction of the knife handle with the blade.
ПРИМЕРЫ ОСУЩЕСТВЛЕНИЯ ИЗОБРЕТЕНИЯ EXAMPLES OF THE INVENTION
Предложенная крепежная ось предназначена для соединения подвижных друг относительно друга элементов (частей изделий, деталей) и может применяться, например, для соединения лезвия ножа с рукояткой ножа, для соединения двух частей (половинок) ножниц, для соединения колеса велосипеда с рамой (с вилкой), для соединения ножа роторной косилки, а также для соединения любых иных элементов, деталей, частей, узлов, которые вращаются друг относительно друга, и которые должны быть надежно соединены между собой без люфтов и с усилием, обеспечивающим свободное вращение (вращательное движение) их друг относительно друга. The proposed fastening axle is designed to connect elements (parts of products, parts) that are movable relative to each other and can be used, for example, to connect a knife blade with a knife handle, to connect two parts (halves) of scissors, to connect a bicycle wheel to a frame (with a fork) , for connecting the blade of a rotary mower, as well as for connecting any other elements, parts, parts, assemblies that rotate relative to each other, and which must be reliably connected to each other without backlash and with an effort that ensures free rotation (rotational movement) of each other relative to a friend.
Предложенная крепежная ось для соединения подвижных друг относительно друга элементов содержит две цилиндрические втулки 1 и 2 с осевыми отверстиями и резьбовой крепежный элемент 3 с наружной резьбой. Первая втулка 1 предназначена для установки внутри (в осевом отверстии) второй втулки 2, а крепежный элемент 3 предназначен для установки внутри (в осевом отверстии) первой втулки 1. При этом установка втулки 1 во втулке 2 осуществляется посредством резьбового соединения, а установка крепежного элемента 3 во втулке 1 осуществляется также посредством резьбового соединения.
Первая втулка 1 (фиг. 4) имеет осевое отверстие, которое может быть выполнено либо сквозным, либо глухим. Втулка 1 на наружной поверхности на одном своем конце (торце) имеет по меньшей мере один радиальный выступ 4, направленный в сторону от оси втулки 1. Выступ 4 может быть выполнен кольцевым с цилиндрической внешней поверхность, либо кольцевым с выемками на внешней стороне (не показаны), образованными вдоль периметра (дугообразные выемки, или прямоугольные, или треугольные, образующие форму звезды выступа 4, или другой формы). Выступ 4 может иметь также иную форму и может быть выполнен, например, в виде отгиба (не показан), направленного в сторону от оси втулки 1, при этом количество таких отгибов может быть два, три или более, которые равномерно (или неравномерно) расположены по периметру втулки 1. Выступ 4 предназначен для контакта с поверхностью одного из соединяемых друг с другом элементов изделия (первого элемента) с целью прижатия к другому соединяемому с ним элементу изделия (второму элементу, или к другим соединяемым с ним элементам - второму, третьему и т.д. элементам изделия с целью прижатия друг к другу всех элементов, расположенных на крепежной оси). The proposed fastening axis for connecting elements movable relative to each other contains two cylindrical bushings 1 and 2 with axial holes and a threaded fastener 3 with an external thread. The first bushing 1 is intended for installation inside (in the axial hole) of the second bushing 2, and the fastening element 3 is intended for installation inside (in the axial bore) of the first bushing 1. In this case, the installation of the bushing 1 in the bushing 2 is carried out by means of a threaded connection, and the installation of the fastening element 3 in the sleeve 1 is also carried out by means of a threaded connection. The first sleeve 1 (Fig. 4) has an axial bore, which can be made either through or blind. The sleeve 1 on the outer surface at one end (end) has at least one radial protrusion 4 directed away from the axis of the sleeve 1. The protrusion 4 can be made annular with a cylindrical outer surface, or annular with recesses on the outer side (not shown ) formed along the perimeter (arcuate recesses, or rectangular, or triangular, forming a star-shaped protrusion 4, or another shape). The protrusion 4 can also have a different shape and can be made, for example, in the form of a bend (not shown) directed away from the axis of the sleeve 1, while the number of such bends can be two, three or more, which are evenly (or unevenly) located along the perimeter of the sleeve 1. The protrusion 4 is intended for contact with the surface of one of the connected elements of the product (the first element) in order to press against another connected element of the product (the second element, or to other elements connected to it - the second, third and etc. to the elements of the product in order to press against each other all elements located on the fastening axis).
Втулка 1 на внешней своей поверхности имеет внешнюю резьбу 5, которая может быть образована либо на части внешней цилиндрической поверхности и начало которой лежит на противоположном конце (торце) от выступа 4, либо может быть образована на всей внешней цилиндрической поверхности от одного своего свободного конца до выступа 4. Втулка 1 имеет также на внутренней своей цилиндрической поверхности внутреннюю резьбу 6, которая также может быть образована либо на части внутренней цилиндрической поверхности и начало которой лежит на конце со
стороны выступа 4 или на противоположном конце, либо может быть образована на всей внутренней цилиндрической поверхности (как при выполнении осевого отверстия глухим, так и сквозным). The sleeve 1 on its outer surface has an external thread 5, which can be formed either on a part of the outer cylindrical surface and the beginning of which lies at the opposite end (end) from the projection 4, or can be formed on the entire outer cylindrical surface from one of its free end to projection 4. The bushing 1 also has an internal thread 6 on its inner cylindrical surface, which can also be formed either on a part of the inner cylindrical surface and the beginning of which lies at the end with side of the protrusion 4 or at the opposite end, or it can be formed on the entire inner cylindrical surface (both when making the axial hole blind and through).
Втулка 1 имеет по меньшей мере одну сквозную продольную прорезь 7, образованную вдоль втулки 1, направленную вдоль оси втулки 1 и открытую со стороны конца, свободного от выступа 4. При этом прорезь 7 может быть образована либо, например, до середины втулки 1, либо немного менее, чем до середины, либо немного более, чем до середины, либо до выступа 4. Прорезь 7 позволяет разжиматься (расширяться) втулке 1 при взаимодействии с крепежным элементом 3. Количество прорезей 7 может быть больше одной, например, две, три или более, длины которых либо равны между собой, либо отличаются друг от друга. Когда количество прорезей 7 равно двум, они расположены, предпочтительно, диаметрально противоположно друг другу. The bushing 1 has at least one through longitudinal slot 7 formed along the bushing 1, directed along the axis of the bushing 1 and open from the end free from the projection 4. In this case, the slot 7 can be formed either, for example, to the middle of the bushing 1, or slightly less than to the middle, or slightly more than to the middle, or to the protrusion 4. The slot 7 allows the sleeve 1 to expand (expand) when interacting with the fastening element 3. The number of slots 7 can be more than one, for example, two, three or more, the lengths of which are either equal to each other or differ from each other. When the number of slots 7 is two, they are preferably located diametrically opposite to each other.
На цилиндрической поверхности втулки 1 может быть образовано сквозное отверстие 8, сопряженное с прорезью 7, при этом ось отверстия 8 либо перпендикулярна оси втулки 1, либо лежит под небольшим углом к оси втулки 1. Количество отверстий 8 (в случае, когда количество прорезей 7 более одной) либо меньше, либо равно количеству прорезей 7, причем соответствующее отверстие 8 сопряжено с соответствующей прорезью 7. Диаметр отверстия 8 больше ширины прорези 7, за счет этого обеспечивается свободное разжимание втулки 1 при взаимодействии (контакте) с крепежным элементом 3 без возникновения напряжений материала. On the cylindrical surface of the sleeve 1, a through hole 8 can be formed, mated with the slot 7, while the axis of the hole 8 is either perpendicular to the axis of the sleeve 1, or lies at a slight angle to the axis of the sleeve 1. The number of holes 8 (in the case when the number of slots 7 is more one) is either less or equal to the number of slots 7, and the corresponding hole 8 is mated with the corresponding slot 7. The diameter of the hole 8 is greater than the width of the slot 7, thereby ensuring free expansion of the sleeve 1 during interaction (contact) with the fastening element 3 without material stress ...
Вторая втулка 2 (фиг. 5) имеет осевое сквозное отверстие. Втулка 2 на наружной поверхности на одном своем конце (торце) имеет по меньшей мере один радиальный выступ 9, направленный в сторону от
оси втулки 1. Выступ 9 может быть выполнен кольцевым с цилиндрической внешней поверхность, либо кольцевым с выемками на внешней стороне (не показаны), образованными вдоль периметра (дугообразные выемки, или прямоугольные, или треугольные, образующие форму звезды выступа 4, или другой формы). Выступ 9 может иметь также иную форму и может быть выполнен, например, в виде отгиба (не показан), направленного в сторону от оси втулки 2, при этом количество таких отгибов может быть два, три или более, которые равномерно (или неравномерно) расположены по периметру втулки 1. Выступ 9 предназначен для контакта с поверхностью другого элемента изделия (второго элемента), соединяемого с первым элементом изделия с целью прижатия второго элемента к первому элементу. The second bushing 2 (Fig. 5) has an axial through hole. The sleeve 2 on the outer surface at one end (end) has at least one radial protrusion 9 directed away from the axis of the sleeve 1. The protrusion 9 can be made annular with a cylindrical outer surface, or annular with grooves on the outer side (not shown) formed along the perimeter (arcuate grooves, or rectangular, or triangular, forming a star-shaped protrusion 4, or another shape) ... The protrusion 9 can also have a different shape and can be made, for example, in the form of a bend (not shown) directed away from the axis of the sleeve 2, while the number of such bends can be two, three or more, which are evenly (or unevenly) located along the perimeter of the sleeve 1. The protrusion 9 is intended for contact with the surface of another element of the product (second element) connected to the first element of the product in order to press the second element against the first element.
Втулка 2 имеет на внутренней своей цилиндрической поверхности внутреннюю резьбу 10, которая может быть образована либо на части внутренней цилиндрической поверхности, либо может быть образована на всей внутренней цилиндрической поверхности от одного своего конца до другого. В случае выполнения внутренней резьбы 10 на части внутренней цилиндрической поверхности втулки 2, она может иметь начало либо на конце с выступом 9, либо на противоположном конце (без выступа 9), либо может быть образована в серединной части втулки 2 между ее концами. Внутренняя резьба 10 втулки 2 предназначена для соединения с внешней резьбой 5 втулки 1. Втулка 2 на внешней своей поверхности может иметь внешнюю резьбу (не показана), которая может быть образована либо на части внешней цилиндрической поверхности и начало которой лежит на конце со стороны выступа 9, либо может быть образована на всей внешней цилиндрической поверхности от одного своего свободного конца до выступа 9. Внешняя резьба втулки 2 предназначена для соединения со
вторым элементом изделия (соединяемых элементов). Кроме того, внешняя цилиндрическая поверхность второй втулки 2 может быть выполнена ступенчатой (не показано), т.е. внешний диаметр второй втулки 2 выполнен ступенчатым таким образом, что ступень с большим диаметром расположена со стороны выступа 9. В данном случае внешняя резьба второй втулки 2 может быть образована на ступени с большим диаметром втулки 2. The sleeve 2 has an internal thread 10 on its inner cylindrical surface, which can be formed either on a part of the inner cylindrical surface, or can be formed on the entire inner cylindrical surface from one end to the other. If the internal thread 10 is made on a part of the inner cylindrical surface of the sleeve 2, it can start either at the end with a projection 9, or at the opposite end (without projection 9), or it can be formed in the middle part of the sleeve 2 between its ends. The internal thread 10 of the sleeve 2 is intended for connection with the external thread 5 of the sleeve 1. The sleeve 2 on its outer surface can have an external thread (not shown), which can be formed either on a part of the outer cylindrical surface and the beginning of which lies at the end from the side of the projection 9 , or can be formed on the entire outer cylindrical surface from one of its free end to the protrusion 9. The outer thread of the sleeve 2 is intended for connection with the second element of the product (connected elements). In addition, the outer cylindrical surface of the second sleeve 2 can be made stepped (not shown), i.e. the outer diameter of the second sleeve 2 is stepped in such a way that a step with a large diameter is located on the side of the projection 9. In this case, the external thread of the second sleeve 2 can be formed on a step with a large diameter of the sleeve 2.
Резьбовой крепежный элемент 3 (фиг. 6) представляет собой винт, либо шпильку, либо стержень с резьбой, при этом при любом выполнении крепежного элемента 3 он имеет стержневую часть с резьбой 11 и кольцевой выступ 12, образованный на наружной поверхности. Резьба 11 предназначена для соединения с внутренней резьбой 6 втулки 1. Выступ 12 выполнен расширяющимся вдоль оси крепежного элемента в сторону от резьбы 11, т.е. кольцевой выступ имеет диаметр, увеличивающийся в направлении от резьбы 11. Выступ 12 может представлять собой либо коническую форму, либо полусферическую форму. Выступ 12 предназначен для взаимодействия со втулкой 1 (со свободным концом втулки 1) и выполняет роль клина, т.е. при осевом перемещении крепежного элемента 3 внутри втулки 1 за счет резьбового соединения (резьбы 11 с резьбой 6) выступ 12 упирается в свободный конец втулки 1 и разжимает (расклинивает своей конической или полусферической поверхностью) втулку 1 за счет прорези (прорезей) 7.Таким образом выступ 12 крепежного элемента разжимает втулку 1 и она фиксируется внутри втулки 2. Threaded fastening element 3 (Fig. 6) is a screw, or a stud, or a threaded rod, while in any embodiment of the fastening element 3 it has a threaded rod portion 11 and an annular protrusion 12 formed on the outer surface. The thread 11 is intended for connection with the internal thread 6 of the sleeve 1. The protrusion 12 is made expanding along the axis of the fastening element away from the thread 11, i.e. the annular protrusion has a diameter that increases in the direction away from the threads 11. The protrusion 12 can be either conical or hemispherical. The protrusion 12 is designed to interact with the sleeve 1 (with the free end of the sleeve 1) and acts as a wedge, i.e. during the axial movement of the fastening element 3 inside the sleeve 1 due to the threaded connection (thread 11 with thread 6), the protrusion 12 abuts against the free end of the sleeve 1 and expands (wedges with its conical or hemispherical surface) the sleeve 1 due to the slot (s) 7. the protrusion 12 of the fastening element expands the sleeve 1 and it is fixed inside the sleeve 2.
В сборе предложенная крепежная ось представляет собой следующее. Assembled, the proposed mounting axle is as follows.
Крепежная ось содержит две втулки 1 и 2, при этом втулка 1 установлена внутри втулки 2 с помощью резьбового соединения
(резьбы 5, 10). В данном случае выступы 4 и 9 находятся на расстоянии друг от друга. Крепежный элемент 3 с помощью резьбового соединения (резьбы 6, 11) установлен внутри втулки 1 и его выступ 12 контактирует со свободным концом втулки 1 (разжимая втулку 1) и расположен со стороны выступа 9. При этом выступ 12 при вворачивании резьбы 11 крепежного элемента 3 в резьбу 6 втулки 1 сильнее упирается в торец втулки 1, расклинивая (расширяя) втулку 1 и фиксируя резьбовое соединение первой 1 и второй 2 втулки. The fastening axle contains two bushings 1 and 2, while the bushing 1 is installed inside the bushing 2 using a threaded connection (threads 5, 10). In this case, the projections 4 and 9 are at a distance from each other. The fastening element 3 by means of a threaded connection (threads 6, 11) is installed inside the bushing 1 and its protrusion 12 contacts the free end of the bushing 1 (unclamping the bushing 1) and is located on the side of the protrusion 9. In this case, the protrusion 12 when screwing in the thread 11 of the fastening element 3 into the thread 6 of the sleeve 1, it rests more strongly against the end of the sleeve 1, wedging (expanding) the sleeve 1 and fixing the threaded connection of the first 1 and second 2 sleeves.
Длина второй втулки 2 может быть либо меньше длины первой втулки 1 (фиг. 1), либо равна ей (фиг. 2), либо больше (фиг. 3). При этом, если длина втулки 2 больше длины втулки 1, то крепежный элемент может представлять собой стержень, на части поверхности которого образована резьба 11, за ней расположен кольцевой выступ 12, за выступом 12 расположена часть стержня без резьбы 11, а за ней часть, предназначенная для взаимодействия с инструментом, предназначенным для завинчивания крепежного элемента 3. The length of the second sleeve 2 can be either less than the length of the first sleeve 1 (Fig. 1), or equal to it (Fig. 2), or greater (Fig. 3). In this case, if the length of the sleeve 2 is greater than the length of the sleeve 1, then the fastening element can be a rod, on a part of the surface of which a thread 11 is formed, behind it is an annular protrusion 12, behind the protrusion 12 is a part of the rod without a thread 11, and behind it a part, designed to interact with the tool for screwing the fastener 3.
Втулки 1 и 2 со стороны выступов 4 и 9 соответственно могут иметь специальные участки (выступы-углубления, не показаны), которые предназначены для взаимодействия с инструментом для завинчивания втулок 1 и 2 (друг с другом). Bushings 1 and 2 on the side of projections 4 and 9, respectively, can have special sections (projections-recesses, not shown), which are designed to interact with the tool for screwing bushings 1 and 2 (with each other).
Рассмотрим пример применения предложенной крепежной оси на примере соединения лезвия 13 ножа с рукояткой. Однако следует понимать, что предложенная крепежная ось может применяться в любых изделиях, где необходимо обеспечить исключение люфтов между подвижными друг относительно друга элементами и обеспечить надежное их соединение без опасности случайного рассоединения. Let us consider an example of the application of the proposed fastening axis by the example of connecting the knife blade 13 with the handle. However, it should be understood that the proposed fastening axle can be used in any products where it is necessary to ensure the elimination of backlash between the elements moving relative to each other and to ensure their reliable connection without the risk of accidental disconnection.
Рукоятка ножа может иметь две части 14, 15 с пазом для размещения лезвия 13. Между частями 14 и 15 рукоятки размещено
лезвие. При этом две части 14, 15 рукоятки и лезвие 13 имеют отверстие для установки в них второй втулки 2. Диаметр таких отверстий равен внешнему диаметру втулки 2, либо немного более внешнего диаметра втулки 2. Таким образом, втулка 2 устанавливается в отверстиях последовательно расположенных первой части 14 рукоятки ножа, лезвия 13 и второй части 15 рукоятки ножа. В данном случае длина втулки 2 должна быть меньше суммы толщин частей 14, 15 рукоятки и лезвия 13 (и суммы толщин шайб скольжения, при наличии, на фигурах не показаны, т.е. длина втулки 2 меньше ближайшего расстояния между внешними поверхностями частей 14 и 15 в месте соединения с лезвием 13). При этом выступ 9 контактирует с наружной поверхностью первой части 14 рукоятки ножа. Со стороны второй части 15 рукоятки ножа устанавливают первую втулку 1 внутри втулки 2, т.е. с применением инструмента для завинчивания втулку 1 ввинчивают во втулку 2. В данном случае выступ 4 контактирует с наружной поверхностью второй части 15 рукоятки ножа. При этом при ввинчивании втулки 1 во втулку 2 за счет выступов 4 и 9 прижимают две части рукоятки друг к другу, обеспечивая то усилие прижатия, при котором исключаются все люфты между частями 14, 15 рукоятки и лезвием 13 и обеспечивается свободно движение лезвие 13 относительно рукоятки без заклинивания. Благодаря этому обеспечивается возможность регулировки усилия прижатия. Когда отрегулировали усилие прижатия частей 14, 15 рукоятки с лезвием 13, во втулку 1 ввинчивают крепежный элемент 3 до тех пор, когда выступ 12 начнет контактировать с концом втулки 1, противоположном выступу 4. При этом крепежный элемент 3 ввинчивают во втулку 1 так, чтобы выступ 12 за счет своей расширяющейся (конической или полусферической) поверхности начал расклинивать (разжимать) втулку
1 до тех пор, когда будет обеспечена надежная фиксация втулки 1 относительно втулки 2 (резьбы 5, 10) за счет того, что внешняя поверхность втулки 1 упирается во внутреннюю поверхность втулки 2. Таким образом, за счет такого соединения лезвия 13 с рукояткой ножа исключаются люфты между рукояткой и лезвием 13, т.к. обеспечивается возможность регулировки усилия прижатия.The knife handle can have two parts 14, 15 with a groove to accommodate the blade 13. Between the parts 14 and 15 of the handle is placed blade. In this case, the two parts 14, 15 of the handle and the blade 13 have a hole for installing the second sleeve 2. The diameter of such holes is equal to the outer diameter of the sleeve 2, or slightly more than the outer diameter of the sleeve 2. Thus, the sleeve 2 is installed in the holes of the first part located in series 14 of the knife handle, blade 13 and the second part 15 of the knife handle. In this case, the length of the sleeve 2 should be less than the sum of the thicknesses of the parts 14, 15 of the handle and the blade 13 (and the sum of the thicknesses of the sliding washers, if any, are not shown in the figures, i.e. the length of the sleeve 2 is less than the closest distance between the outer surfaces of the parts 14 and 15 at the junction with the blade 13). In this case, the protrusion 9 contacts the outer surface of the first part 14 of the knife handle. From the side of the second part 15 of the knife handle, the first sleeve 1 is installed inside the sleeve 2, i.e. using a screwing tool, the sleeve 1 is screwed into the sleeve 2. In this case, the protrusion 4 contacts the outer surface of the second part 15 of the knife handle. At the same time, when screwing the sleeve 1 into the sleeve 2, by means of the projections 4 and 9, the two parts of the handle are pressed against each other, providing that pressing force at which all backlash between the parts 14, 15 of the handle and the blade 13 is eliminated and the blade 13 moves freely relative to the handle without jamming. This makes it possible to adjust the pressing force. When the pressing force of the parts 14, 15 of the handle with the blade 13 has been adjusted, the fastening element 3 is screwed into the sleeve 1 until the projection 12 contacts the end of the sleeve 1 opposite the projection 4. The fastening element 3 is screwed into the sleeve 1 so that the protrusion 12, due to its expanding (conical or hemispherical) surface, began to wedge (unclench) the sleeve 1 until reliable fixation of the sleeve 1 relative to the sleeve 2 (threads 5, 10) is ensured due to the fact that the outer surface of the sleeve 1 abuts against the inner surface of the sleeve 2. Thus, due to this connection of the blade 13 with the knife handle, backlash between the handle and the blade 13, because the ability to adjust the pressing force.
Обеспечивается надежная фиксация соединения благодаря исключению самопроизвольного раскручивания элементов крепежной оси за счет расклинивания втулки 1 внутри втулки 2. Reliable fixation of the connection is provided due to the elimination of spontaneous unwinding of the elements of the fastening axle due to wedging of the sleeve 1 inside the sleeve 2.
При использовании предложенной крепежной оси для соединения рукоятки ножа с лезвием 13 в одной части 14 или 15 рукоятки, или в обеих частях 14 и 15 рукоятки отверстие, в котором установлена втулка 2 может быть выполнено ступенчатым (не показано). При этом диаметр большей ступени отверстия части 14 рукоятки выполнен равным или большим внешнего диаметра выступа 9, а диметр большей ступени отверстия части 15 рукоятки выполнен равным или большим внешнего диаметра выступа 4. За счет этого выступы 4 и 9 прячутся (утапливаются) в отверстии соответственно части 14 и 15 рукоятки и торец соответствующей втулки 1, 2 расположен заподлицо с внешней поверхностью рукоятки, что обеспечивает удобство пользования за счет отсутствия выступающих частей. When using the proposed fastening axis for connecting the knife handle with the blade 13 in one part 14 or 15 of the handle, or in both parts 14 and 15 of the handle, the hole in which the sleeve 2 is installed can be made stepped (not shown). In this case, the diameter of the larger step of the opening of the handle part 14 is made equal to or greater than the outer diameter of the protrusion 9, and the diameter of the larger step of the hole of the portion 15 of the handle is made equal to or greater than the outer diameter of the protrusion 4. Due to this, the protrusions 4 and 9 are hidden (recessed) in the hole respectively of the part 14 and 15 of the handle and the end face of the corresponding sleeve 1, 2 is flush with the outer surface of the handle, which ensures ease of use due to the absence of protruding parts.
При этом при использовании предложенной крепежной оси в других изделиях (например, ножницы, роторная косилка и т.п.) в соответствующих частях таких изделия отверстия, в которых устанавливается втулка 2, могут быть выполнены ступенчатыми для размещения в больших ступенях отверстий выступов 4 и 9 соответственно .
Благодаря предложенному изобретению обеспечивается надежное соединение подвижных друг относительно друга элементов любых изделий, обеспечивается надежная фиксация элементов предложенной крепежной оси без самопроизвольного раскручивания. Обеспечивается также исключение всех возможных люфтов между соединяемыми подвижными друг относительно друга элементами изделий за счет возможности регулирования усилия прижатия и фиксации такого усилия. Регулировка усилия прижатия позволяет обеспечить такое круговое (вращательное) движение соединяемых и подвижных друг относительно друга элементов, которое необходимо в каждом конкретном случае для конкретных изделий. At the same time, when using the proposed fastening axis in other products (for example, scissors, rotary mower, etc.) in the corresponding parts of such products, the holes in which the sleeve 2 is installed can be made stepped for placement in large steps of the holes of the projections 4 and 9 accordingly. Thanks to the proposed invention, a reliable connection of the elements of any products that are movable relative to each other is ensured, and reliable fixation of the elements of the proposed fastening axis is provided without spontaneous unwinding. It is also ensured that all possible backlashes between the connected elements of the products that are movable relative to each other are eliminated due to the possibility of adjusting the pressing force and fixing such a force. Adjusting the pressing force allows you to provide such a circular (rotational) movement of the connected and movable elements relative to each other, which is necessary in each specific case for specific products.
Использование предложенной крепежной оси может быть в любой области, где необходимо обеспечить соединение подвижных друг относительно друга элементов (деталей) без люфтов между ними и без опасности случайного рассоединения деталей друг от друга за счет самопроизвольного раскручивания элементов крепежной оси.
The use of the proposed fastening axis can be in any area where it is necessary to ensure the connection of elements (parts) moving relative to each other without backlash between them and without the danger of accidental disconnection of parts from each other due to spontaneous unwinding of the fastening axis elements.
Claims
1. Крепежная ось для соединения подвижных друг относительно друга элементов, содержащая две цилиндрические втулки с осевыми отверстиями и резьбовой крепежный элемент с наружной резьбой, каждая втулка имеет на наружной поверхности на одном своем конце по меньше мере один выступ, направленный от оси втулки, а первая втулка имеет внутреннюю резьбу для соединения с резьбовым крепежным элементом, отличающаяся тем, что вторая втулка имеет внутреннюю резьбу, а первая втулка имеет также внешнюю резьбу для соединения с внутренней резьбой второй втулки и имеет по меньше мере одну сквозную продольную прорезь, которая направлена вдоль оси и открыта со стороны свободного конца, при этом резьбовой крепежный элемент имеет на наружной поверхности кольцевой выступ с диаметром, увеличивающимся в направлении от резьбы. 1. A fastening axle for connecting elements movable relative to each other, containing two cylindrical bushings with axial holes and a threaded fastener with an external thread, each bushing has on its outer surface at one end at least one protrusion directed from the axis of the bushing, and the first the sleeve has an internal thread for connection with a threaded fastener, characterized in that the second sleeve has an internal thread, and the first sleeve also has an external thread for connection with an internal thread of the second sleeve and has at least one through longitudinal slot, which is directed along the axis and open from the side of the free end, while the threaded fastener has on the outer surface an annular protrusion with a diameter that increases in the direction from the thread.
2. Ось по п.1, отличающаяся тем, что внутренняя резьба второй втулки образована на по меньшей мере части ее внутренней поверхности. 2. An axle according to claim 1, characterized in that the internal thread of the second sleeve is formed on at least a part of its internal surface.
3. Ось по п.1, отличающаяся тем, что внутренняя резьба первой втулки образована на по меньшей мере части ее внутренней поверхности. 3. An axle according to claim 1, characterized in that the internal thread of the first sleeve is formed on at least a part of its internal surface.
4. Ось по п.1, отличающаяся тем, что внешняя резьба первой втулки образована на по меньшей мере части ее внешней поверхности. 4. An axle according to claim 1, characterized in that the outer thread of the first sleeve is formed on at least a part of its outer surface.
5. Ось по п.1, отличающаяся тем, что длина второй втулки меньше или равна, или больше длины первой втулки. 5. An axle according to claim 1, characterized in that the length of the second sleeve is less than or equal to, or greater than the length of the first sleeve.
6. Ось по п.1, отличающаяся тем, что кольцевой выступ резьбового крепежного элемента имеет коническую или полусферическую форму. 6. The axle of claim 1, wherein the annular protrusion of the threaded fastener has a conical or hemispherical shape.
7. Ось по п.1, отличающаяся тем, что осевое отверстие первой втулки выполнено сквозным.
7. The axle according to claim 1, characterized in that the axial hole of the first sleeve is made through.
8. Ось по п.1, отличающаяся тем, что первая втулка имеет на своей цилиндрической поверхности сквозное отверстие, сопряженное с прорезью. 8. The axle according to claim 1, characterized in that the first sleeve has a through hole on its cylindrical surface, mated with the slot.
9. Ось по п.1, отличающаяся тем, что вторая втулка имеет внешнюю резьбу, образованную на по меньшей мере части ее поверхности со стороны выступа. 9. An axle according to claim 1, characterized in that the second sleeve has an external thread formed on at least part of its surface on the side of the protrusion.
10. Ось по п.9, отличающаяся тем, что внешний диаметр второй втулки выполнен ступенчатым, при этом ступень с большим диаметром расположена со стороны выступа, а указанная внешняя резьба образована на ступени с большим диаметром.
10. An axle according to claim 9, characterized in that the outer diameter of the second sleeve is stepped, wherein the step with a large diameter is located on the side of the projection, and said external thread is formed on the step with a large diameter.
Applications Claiming Priority (2)
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RU2019124494A RU2709278C1 (en) | 2019-08-01 | 2019-08-01 | Fastening axis for connection of elements movable relative to each other |
RU2019124494 | 2019-08-01 |
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WO2021020989A1 true WO2021020989A1 (en) | 2021-02-04 |
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PCT/RU2019/000760 WO2021020989A1 (en) | 2019-08-01 | 2019-10-22 | Fastening pivot for the connection of elements that are movable in relation to one another |
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WO (1) | WO2021020989A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU380447A1 (en) * | 1970-11-30 | 1973-05-15 | MANUAL PIECES | |
US20070137047A1 (en) * | 2005-12-15 | 2007-06-21 | Surefire, Llc, A California Limited Liability Company | Folding knife |
US20150239134A1 (en) * | 2012-09-09 | 2015-08-27 | Mentor Group, L.L.C. | Folding Knife With Dual Operational Modes |
RU2634814C1 (en) * | 2016-10-05 | 2017-11-03 | Сергей Михайлович Сазонов | Clasp-knife |
-
2019
- 2019-08-01 RU RU2019124494A patent/RU2709278C1/en active
- 2019-10-22 WO PCT/RU2019/000760 patent/WO2021020989A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU380447A1 (en) * | 1970-11-30 | 1973-05-15 | MANUAL PIECES | |
US20070137047A1 (en) * | 2005-12-15 | 2007-06-21 | Surefire, Llc, A California Limited Liability Company | Folding knife |
US20150239134A1 (en) * | 2012-09-09 | 2015-08-27 | Mentor Group, L.L.C. | Folding Knife With Dual Operational Modes |
RU2634814C1 (en) * | 2016-10-05 | 2017-11-03 | Сергей Михайлович Сазонов | Clasp-knife |
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