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WO2016122021A1 - Ensemble mandrin de perçage destiné à un outil motorisé - Google Patents

Ensemble mandrin de perçage destiné à un outil motorisé Download PDF

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Publication number
WO2016122021A1
WO2016122021A1 PCT/KR2015/000953 KR2015000953W WO2016122021A1 WO 2016122021 A1 WO2016122021 A1 WO 2016122021A1 KR 2015000953 W KR2015000953 W KR 2015000953W WO 2016122021 A1 WO2016122021 A1 WO 2016122021A1
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WO
WIPO (PCT)
Prior art keywords
adapter
drill chuck
fastening
power tool
hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2015/000953
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English (en)
Korean (ko)
Inventor
송춘섭
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Individual
Original Assignee
Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to PCT/KR2015/000953 priority Critical patent/WO2016122021A1/fr
Publication of WO2016122021A1 publication Critical patent/WO2016122021A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for

Definitions

  • the present invention relates to a drill chuck assembly for a power tool
  • the present invention relates to a drill chuck assembly for easily and firmly mounting a drill bit to a power tool such as an electric screwdriver or an impact driver.
  • a bolt member and a connecting member are coupled to an adapter to provide rigidity of an adapter connecting the drill chuck to a power tool.
  • the present invention relates to a drill chuck assembly for a power tool which can prevent the adapter from being broken by releasing an impact applied to the adapter during rotation.
  • power tools such as electric screwdrivers, impact drivers, and electric drills are used.
  • electric drills are used only for drilling operations.
  • Commonly used electric motors and impact drivers are generally widely used to perform tasks.
  • An electric screwdriver is a bidirectional rotation of a tool at a constant speed, and an impact driver is similar to an electric screwdriver in that a tool is mounted and used, but a continuous rotation is performed when a moment (rotation) is applied instantaneously during rotation.
  • the prior art 1 is as shown in FIG. 1A (hereinafter, reference numerals of FIGS. 1A and 1B for describing the prior arts 1 and 2 are independent of reference numerals of FIGS. 2 to 5 for explaining the present invention).
  • the fastener 210 of the power tool is composed of a square fastener 230 to which the box egg 20 can be mounted, and the square fastener 230 is not only a box egg 20, but also a general driver. It is provided with a hexagon wrench-type fastening hole 220 for mounting the tool bit 10 of the form.
  • the drill bit (see reference numeral 19 in FIG. 2) that is not a screwdriver shape in the power tool 110 is manufactured in a general rod shape instead of a hexagon wrench type due to the manufacture of the drill, the socket is inserted into the socket for the hexagon wrench 220. It cannot be attached.
  • a drill chuck assembly composed of a drill chuck and an adapter, which makes it possible to mount and use a drill bit 19 as shown in FIG. 2 to a power tool.
  • the prior art 2 has a drill chuck 32 to which the drill bit 31 is fastened and a male screw portion 30b coupled to the female screw portion of the drill chuck at the front end thereof, as shown in FIG. It consists of an adapter having a hexagonal shank (30a) is inserted into the fastener of the, and is mounted to the power tool through the hexagonal shank of the adapter, the fixing of the drill bit is a jaw of the drill chuck (protruding part of the drill chuck shear in Figure 1b See.).
  • the drill chuck is coupled to only the adapter while the hexagonal shank 30a of the adapter is simply inserted into the fastener of the power tool, so that There is a problem in that the adapter is easily broken due to the impact on the adapter as the load applied thereto increases.
  • the male threaded part of the adapter is screwed into the rear end of the drill chuck, the most vulnerable male threaded part is connected to the body of the adapter.
  • the drill chuck cannot be used because the male screw portion of the adapter cannot be separated from the drill chuck.
  • the adapter When the drill bit is mounted and used on the power tool, the adapter ensures rigidity that can withstand the load on the drill chuck assembly for stably supporting and fixing the drill bit, thereby preventing the adapter from being damaged.
  • connection member fastened to the rear end of the connection hole through the socket portion of the adapter so that the drill chuck and the fastener of the power tool are connected to each other through the connection hole of the adapter, and the rear end is fastened to the fastening hole provided in the fastener of the power tool; It is an object of the present invention to provide a drill chuck assembly for a power tool comprising a bolt member fastened to a front end of the connection hole through a drill bit mounting hole of a drill chuck.
  • the present invention provides a screw coupling direction of the male screw portion of the adapter and the female screw portion of the drill chuck so as to prevent the bolt member from being unscrewed from the connecting hole of the adapter by the rotation of the drill bit, that is, the rotation of the fastener during operation,
  • An object of the present invention is to provide a drill chuck assembly for a power tool in which screwing directions of bolt members are made in opposite directions.
  • the present invention facilitates the manufacture and manufacture of the adapter, and at the same time, the first adapter powder and the second adapter powder to improve the productivity of the drill chuck assembly and to facilitate replacement and repair due to possible damage.
  • An object of the present invention is to provide a drill chuck assembly for a power tool employing a detachable adapter.
  • the present invention is connected to the hexagonal fastening portion to enable the mounting and detachment of the connecting member in a one-touch method using the fastening protrusion provided in the first adapter powder body portion is formed with a connection hole, the inside of the connection hole in the body portion And a first adapter powder including a fastening protrusion elastically supported by the fastening member, and a pressing part slidingly coupled to the outer circumferential surface of the body part to limit the extraction of the fastening protrusion, and a fastening groove into which the fastening protrusion is inserted along the outer circumferential surface of the front end portion.
  • An object of the present invention is to provide a drill chuck assembly for a power tool comprising a connecting member.
  • the drill chuck assembly for a power tool is
  • An adapter comprising a male screw portion coupled to the female screw portion of the drill chuck and a socket portion coupled to the fastener of the power tool; It is made, including
  • the adapter is provided with a connection hole formed to communicate with the socket portion through the male screw in the longitudinal direction,
  • a front end portion connected to the rear end of the connection hole through the socket portion, and a connection member coupled to the fastening hole provided at the rear end portion;
  • the screw coupling direction of the screw hole and the bolt member is characterized in that made in the opposite direction.
  • a first adapter powder having a hexagonal fastening portion connected to an external thread portion
  • the detachable adapter consisting of a second adapter powder having an insertion portion into which the hexagonal fastening portion is inserted.
  • the first adapter powder is connected to the hexagonal fastening part, and a body part in which a connection hole is extended, a fastening protrusion elastically supported from the body part to a connection hole, and Sliding coupled to the outer peripheral surface of the body portion includes a pressing portion for limiting the withdrawal of the fastening projections,
  • the connecting member is provided with a fastening groove into which the fastening protrusion is inserted along the outer circumferential surface of the front end portion.
  • Drill chuck assembly for a power tool is a bolt member that is fastened to the front end of the connection hole formed through the male threaded portion of the adapter through the drill bit mounting hole of the drill chuck, the front end is the rear end of the connection hole through the socket portion of the adapter
  • the present invention is made so that the screw coupling direction of the drill chuck and the adapter, and the screw coupling direction of the bolt member and the adapter in the opposite direction, so that the bolt member is separated and separated from the adapter by the rotation of the fastener when using the drill chuck assembly. It can prevent and improve safety.
  • the present invention is easy to manufacture by introducing a detachable adapter consisting of the first adapter powder and the second adapter powder can improve the productivity, in particular, even if the adapter is broken and cut during use, the hexagon of the first adapter powder Since the first adapter powder can be easily separated from the drill chuck through the fastening part, the drill chuck can be used continuously, thereby solving the problem that the drill chuck cannot be used due to the damage of the adapter when using the conventional drill chuck assembly. This can reduce the cost of using the assembly.
  • the present invention introduces a fastening protrusion elastically supported inside the connecting hole through the sliding coupling of the pressing portion to the first adapter powder, and forms a fastening groove into which the fastening protrusion is inserted at the front end of the connecting member, thereby providing a drill chuck assembly.
  • One-touch mounting and dismounting make it easy to use.
  • FIG. 1A and 1B are views for explaining the prior art
  • Figure 2 is a perspective view showing the coupled state of the first embodiment of the drill chuck assembly according to the present invention in different directions.
  • 3A and 3B are exploded perspective views showing the first embodiment of the drill chuck assembly according to the present invention in a different direction.
  • Figure 4 is a perspective view of the combined state of the second embodiment of the drill chuck assembly in a different direction shown.
  • 5A and 5B are exploded perspective views showing a second embodiment of a drill chuck assembly according to the present invention in a different direction.
  • FIG. 6 is a view for explaining the fastening means of the drill chuck assembly according to the present invention.
  • the same reference numerals in particular, the tens and ones digits, or the same digits, tens, ones, and alphabets refer to members having the same or similar functions, and unless otherwise specified, each member in the figures The member referred to by the reference numeral may be regarded as a member conforming to these criteria.
  • a specific operation method of the power tool to which the drill chuck assembly according to the present invention can be applied that is, a general rotation method of an electric driver or an electric impact method of an impact driver, an air impact method, a filling The impact method (Cordless impact), etc. is irrelevant to the nature of the present invention, it turns out that there is no limitation on the type of power tool.
  • the drill chuck assembly includes a drill chuck 10, an adapter 20 for mounting the drill chuck 10 to a power tool T (see FIG. 3), and
  • the drill chuck 10, the adapter 20, and the connection member 30 and the bolt member 40 for securing rigidity and improving the fastening force between the fasteners 1 of the power tool T are formed. .
  • the drill chuck 10 is a member that allows the drill bit 19 to be mounted on the power tool T to be used. Accordingly, the drill bit mounting hole 12 is formed therethrough so that the fastening rod 19a of the drill bit 19 is inserted into the mounting hole 12 to be mounted, and the mounting hole 12 is formed at the rear end of the body 11.
  • a female threaded portion 13 is formed in communication with the threaded portion on the inner circumferential surface thereof.
  • the mounting hole 12 of the drill chuck 10 On the mounting hole 12 of the drill chuck 10, the mounting hole 12 is tightened or loosened while being retracted into and out of the mounting hole 12 through the rotating part 14 coupled to rotate outside the rear end of the body 11.
  • a plurality of jaws (15) are provided to press and fix the fastening rods 19a of the drill bit 19 inserted therein.
  • a plurality of key holes 16 are formed on the outer circumferential surface of the body 11 to insert a drill chuck tightening handle (not shown) into the key hole 16 and then rotate the handle to be formed at the front of the rotating part 14. As the teeth 14a and the teeth of the handle are engaged, the rotary part 14 is rotated to operate the jaws 15 to fix or release the drill bit 19.
  • the specific operation structure and method for the operation of the drill chuck 10, in particular the jaw 15 can be made in various ways, the specific configuration of such a drill chuck 10 is a known technique, all kinds of drill chuck Applicable to the present invention, and therefore, the specific configuration for the operation of the drill chuck is less relevant to the essential features of the present invention, so the detailed description is omitted.
  • the adapter 20 is a male screw portion 21 screwed to the female screw portion 13 of the drill chuck 10 and a socket portion 22 into which the fastener 1 of the power tool T is inserted. It is composed.
  • the socket 22 has a fastening hole 24 corresponding to the fastener 1 of the power tool T.
  • the socket 22 is fitted to the fastener 1 having a square shape that is generally provided in the power tool. It can be seen that a rectangular fastening hole is formed.
  • the shape of the fastening hole 24 is deformable to suit the power tool used, for example, when the drill chuck assembly is manufactured for an electric screwdriver having a circular fastener, the fastening hole has a shape corresponding to the circular fastener. It is also formed, and in some cases it is also possible that the thread for screw coupling is further provided on the fastener outer peripheral surface, and the fastening hole inner peripheral surface, respectively.
  • the rectangular fastening hole 24 is provided. Even though the circular fastener is inserted into the socket 22, there is no problem, and in this case, the connection hole of the connection member 30 and the circular fastener, which will be described later, is made of a hexagon wrench, and the rotational force of the circular fastener is transmitted through the adapter 20. .
  • connection hole 23 is formed in the socket portion.
  • connection member 30 and the bolt member 40 which are mentioned later are fastened to both the front and rear ends of the connection hole 23.
  • the fastener 1 of the power tool may be additionally provided with a coupling hole (not shown) penetrating through opposite sides of the quadrangular surface, and thus the socket portion of the adapter 20 22 is further provided with a corresponding coupling hole (not shown) penetrating the wall forming the fastening hole 24, the fastening pin (not shown) in the state in which the fastener 1 is inserted into the fastening hole 24 It is also possible that the coupling and the coupling hole, the adapter 20 and the fastener 1 is coupled, fixed while being inserted into the coupling hole.
  • the outer circumferential surface of the socket portion 22 is provided with a receiving groove (not shown) for connecting the corresponding coupling holes along the circumferential direction, and comprises a fixing ring (not shown) fitted in the receiving groove, fastening pins In this state, it is possible to prevent the fastening pin from being separated from the adapter 20 by inserting the fixing ring into the receiving groove.
  • the connecting member 30 for improving the overall rigidity of the drill chuck assembly and the fastening force between the components of the present invention is a rod-shaped member having a predetermined length, and the front end is fastened. It is fastened to the rear end of the connection hole 23 through the hole 24.
  • 3a and 3b is representatively shown how the thread 30a is provided at the front end of the connecting member is screwed to the rear end of the connecting hole 23 of the adapter 20.
  • connection member 30 is formed longer than the length of the fastening hole 24 of the socket portion 22.
  • the connecting member 30 is screwed to the connecting hole 23 in the connecting member (
  • the rear end portion of the 30 is configured to protrude behind the socket portion 22, so that the connecting member 30 is inserted into the fastening hole 24 when the fastener 1 of the power tool T is inserted into the fastening hole 24. It is coupled while being inserted into the fastening hole (2).
  • connection member 30 is provided with a fastening groove 31 along the outer circumferential surface, the fastening protrusion (not shown) and the pressing portion (3) structure provided in the fastening hole (2) of the power tool (T)
  • connection member 30 is fixed to the fastening hole 2, it is coupled (to be described in detail later.).
  • the bolt member 40 is screwed to the front end of the connecting hole 23 through the drill bit mounting hole 12 of the drill chuck 10 drill
  • the rigidity of the entire drill chuck assembly can be reinforced.
  • the drill chuck 10 may include a locking part protruding from an inner circumferential surface of the hollow part formed between the drill bit mounting hole 12 and the female screw part 13. 11a),
  • the bolt member 40 is passed through the hollow portion through the mounting hole 12 to the threaded portion 23 of the connecting hole 23 of the adapter 20 of the adapter 20 fastened to the female screw portion 13 (see the upper cross-sectional view of FIG. 3A).
  • the head portion 41 is caught by the catching portion 11a, so that the coupling between the drill chuck 10 and the adapter 20 is made,
  • the thread 30a of the connecting member 30 passes through the fastening hole 24 of the adapter 20 (see the upper cross-sectional view of FIG. 3A), and is coupled to the rear end of the connecting hole 23 of the adapter 20. 20) and the connection between the connection member 30 is made.
  • connection member 30 is fastened to the rear end of the connection hole 23 through the socket part 22 of the adapter 20, and then the adapter 20 is again coupled to the drill chuck 10 (drill chuck 10).
  • the adapter 20 may be combined first, and then the connecting member 30 may be coupled.
  • the bolt member 40 is inserted into the mounting hole 12 while the jaw 15 is opened to be fastened using a screwdriver tool. This completes the assembly of the drill chuck assembly.
  • the drill chuck assembly, in particular the adapter 20, against the load generated when using the power tool (T) can be effectively opposed to prevent damage to the drill chuck assembly.
  • the present invention has a greater rigidity through the pipe-shaped adapter 20, the load generated when the fastener 1 rotates is transferred to the pipe-shaped adapter 20, not the connecting member 30, the load Is distributed to act on the adapter 20,
  • the configuration is due to the tightening force and rigidity between the [drill chuck 10-adapter 20-fastener 1] through the bolt member 40 and the connecting member 30.
  • connection member 30 is not only a circular rod-shaped member, but also can be modified in the form of a general hexagon wrench, this type of connection member 30 is used in the transmission It is more preferable to replace and use it according to the shape of the fastening hole 2 of the tool T.
  • the fastening hole (2) is usually in the form of a circular or hexagonal wrench type socket so that the connection member 30 can be used to replace the product.
  • the protruding connecting hole extension portion 21a may be provided to increase the coupling area between the connecting member 30 and the connecting hole 23.
  • the screw coupling direction of the connecting hole 23 and the bolt member 40 are made in opposite directions to each other.
  • the male screw portion 21 and the female screw portion 13 are fastened to each other by a right screw method
  • the connecting hole 23 and the bolt member 40 are formed to be fastened to each other in a left screw manner.
  • the screw coupling direction of the male screw portion 21 and the female screw portion 13 and the screw coupling direction of the screw hole 23 and the bolt member 40 are selected in accordance with the requirements to be formed in the opposite direction to each other It is preferable to produce.
  • the present invention may adopt the adapter 20 as the detachable adapter 20 ′, thereby improving cost and improving productivity through free parts replacement.
  • the detachable adapter 20 includes a first adapter powder 25 having a hexagonal fastening portion 25b connected to the male screw portion 25a,
  • 2nd adapter powder 26 which is connected in communication with the socket part 26a, and has the insertion part 26b into which the said hexagonal fastening part 25b is inserted.
  • the detachable adapter 20 has a connection hole 23 formed therethrough, and when the first and second adapter powders 25 and 26 are coupled to each other, the connection hole 23 is formed. It is provided to communicate with the socket portion 26a, whereby the connection member 30 and the bolt member 40 is fastened to the front and rear ends of the connection hole 23 as described above.
  • the hexagonal fastening portion 25b of the first adapter powder 25 is fastened to the insertion portion 26b of the second adapter powder 26, the second adapter powder 26 and the first adapter powder 25 ) Is configured to rotate together,
  • the connecting member 30 passes through the socket portion 26a and the inserting portion 26b so that the rear end of the connecting hole 23 of the first adapter powder 25 is provided. Is fastened to
  • the bolt member 40 passes through the drill bit mounting hole 12 while the male screw portion 25a of the first adapter powder 25 is engaged with the female screw portion 13 of the drill chuck 10. When fastened to the front end of the connecting hole 23 of the adapter powder 25,
  • the productivity of the integrated adapter 20 can be reduced by shortening the time generated as the tube is processed through the integrated adapter 20 (that is, in the case of the integrated adapter 20, the socket portion 22). It takes a long time because the male thread portion 21 having a thinner thickness must be formed by processing a raw material having a thickness corresponding to the first and second adapter powders 25 ( 26) can be processed separately to produce productivity is improved),
  • the first adapter powder (25) can be easily separated from the drill chuck (10), so if the detachable adapter (20 ') is damaged during the use of the drill bit (19), only the broken parts are separately It can be purchased and reused, further reducing the cost of long-term use of the drill chuck assembly.
  • Reference numeral 26c is a polygonal surface portion to be engaged while the hexagonal fastening portion 26a is inserted.
  • the first and second adapter powders 25 and 26 and the connection member 30 may be easily mounted and detached in a one-touch manner.
  • the connecting member 30 is provided with a fastening groove 32 into which the fastening protrusion 25e is inserted along the outer circumferential surface of the front end portion.
  • the first adapter powder 25 is a member having a general nipple shape, and includes a fastening protrusion 25e that is elastically supported from the body portion 2dc to the connection hole 23, and the fastening protrusion 25e is provided. It is a structure that draws in and out of the body part (2dc),
  • the pressing portion 25c is a cylindrical member, which is slid to the outer circumferential surface of the body portion 2dc of the first adapter powder 25 to perform forward and backward sliding movement, and is fastened as the fastening protrusion 25e contacts the inner circumferential surface. The withdrawal of the projection 25e is limited.
  • a pull-out groove 25c 'recessed in the front of the inner circumferential surface (left side of the drawing) of the pressing portion 25c is formed, and the contact and release of the contact with the fastening protrusion 25e is made in accordance with the sliding back and forth of the pressing portion 25c. , Limiting the withdrawal state of the fastening protrusion 25e.
  • an elastic body is provided between the pressing portion 25c and the body portion 2dc so that the inner circumferential surface of the pressing portion 25c and the fastening protrusion 25e come into contact with each other (the left side in the drawing) of the pressing portion 25c. Force the move.
  • connection member 30 If the fastening groove 31 is formed at the front end as well as the rear end, the mounting and detachment of the drill chuck assembly may be made in a one-touch manner.
  • reference numeral 3 is a pressurizing part 3 sliding along the fastener 1, and the draw-out structure of the fastening protrusion (not shown) provided inside the fastener 1 is the fastening. Since the projection 25e is almost the same as the drawings and detailed description thereof will be omitted.
  • the fastening protrusion (25e) adopts a structure that is elastically supported in the connecting hole 23 while sliding along the long groove, pressurized
  • the connection member 30 is inserted even when the portion 25c is not pushed backward, the fastening protrusion 25e may be taken out and then inserted into the fastening groove 32.
  • the insertion portion 26b of the second adapter powder 26 is inserted into the hexagonal fastening portion 25b of the first adapter powder 25, and then the pressing portion 3 of the power tool T is moved backward in this state.
  • the pressing part 3 is returned to its original state while the fastening protrusion (not shown) of the fastener 1 is inserted into the fastening groove 31. The coupling of the drill chuck assembly is complete.
  • the connecting member 30 is connected to the first adapter powder. (25) can not be separated, and furthermore, due to the second adapter powder 26, the pressing part 3 of the power tool is also limited in operation (generally, the width of the fastening groove 32 is larger than the fastening protrusion 25e).
  • the drill chuck assembly When the drill chuck assembly is separated from the power tool T, the drill chuck assembly is first pushed forward by a predetermined distance so that the space between the second adapter powder 26 and the pressing part 3 is separated, and then the pressing part 3 To the front to separate the connecting member 30 from the fastener 1, and then the connecting member 30 to the first adapter powder (using the pressing portion 25c in a state where the second adapter powder 26 is removed). 25).
  • the present invention is convenient because the detachable adapter 20 'is mounted and detached in a one-touch manner.
  • socket portions 22 and 26a of the adapters 20 and 20 'of the present invention further include a fastening means 27 capable of reinforcing and assisting a fastening force with the fastener.
  • the present invention is applicable to other types of power tools other than the power tool shown in the drawings, and therefore, the shape and shape of the fastener may vary depending on the type of the power tool, and thus, the socket portion having the rectangular fastening hole 24A. (22) and (26a) introduce fastening means 27 to ensure versatility.
  • FIG. 6 schematically illustrates a cross section in which the fastening means 27 is applied to the socket portion 22 of the integrated adapter 20, and is introduced into the socket portion 22 of the integrated adapter 20 for convenience of description. Only the fastening means 27 will be described in detail, but the fastening means 27 can be equally applied to the socket portion 26a of the detachable adapter 20 ', and of course, for convenience of description, the connection member ( The bonding structure of 30) is omitted.
  • the fastening means 27 of the present invention is provided in the corner groove 24a of the rectangular fastening hole 24A of the socket part 22 to be fixed to the inside of the rectangular fastening hole 24A. It is composed of a member 28 and a pressing member 29 provided on the outer circumferential surface of the socket portion 22 to press and fix the fixing member 28 while sliding back and forth.
  • a member having a fastening hole into which a rectangular fastener 1 (see FIG. 2A) of an electric tool is interpolated is outwardly at a corner of the rectangular fastening hole.
  • a concave formed corner groove portion to guide the corners of the square fastener 1 is provided, and thus the corner groove portion 24a is also provided in the square fastening hole 24A of the socket portion 22 of the present invention.
  • the present invention is a drill chuck assembly by contacting and pressing the outer circumferential surface of the fastener (3) regardless of the shape of the fastener (3; see Fig. 6) while the fixing member 28 is released using the corner groove (24a) And fastener 3 to be firmly coupled.
  • the fastening means 27 of the present invention has a rear end portion in the outlet hole 22a in which the socket portion 22 outer side and the fastening hole 24A communicate with each other along the longitudinal direction in the corner groove portion 24a.
  • a pressing member 29 which has a slit groove 29A into which the fixing member 28 protruding outward of the socket portion 22 is inserted and slidably moved forward and backward on the outer circumferential surface of the socket portion 22.
  • the withdrawal hole 22a is formed in a long groove shape along the corner groove 24a of the rectangular fastening hole 24A to allow internal and external communication.
  • the fixing member 28 is a member corresponding to the length of the outlet hole 22a.
  • the fixing member 28 has a wedge shape in which the upper and lower widths of the front and rear ends 28A and 28B are different from each other, and the rear end portion 28B has a narrow upper and lower width.
  • the pivot shaft 28a provided in the shaft is hinged to the rear end of the drawing hole 22a, the front end portion 28A rotates in the drawing hole 22a, and thus is sprung into the square fastening hole 24A.
  • the pressing member 29 is a ring-shaped member, and has a slit groove 29A, which is partially cut from the front end to the rear, and the slit groove 29A has a front wide portion having different widths at the front and rear ends. It is composed of (29a) and the rear narrow portion (29b), and is slidingly coupled to the outer peripheral surface of the socket portion 22 is provided to move in the front and rear (length) direction while covering the withdrawal hole (22a) on the outer peripheral surface of the socket portion 22. .
  • the front wide portion 29a is formed to be wider than the thickness of the fixing member 28, and the rear narrow portion 29b is formed to have a width equal to (or corresponding to) the thickness of the fixing member 28.
  • the fixing member 28 provided in the corner grooves 24a of the square fastening holes 24A presses the interlocked fasteners 3 in the up, down, left, and right directions, so that the fasteners 3 in the square fastening holes 24A are not fixed. ) Can be separated and separated.
  • FIG. 6 a circular fastener 3 is shown in FIG. 6, [C] and FIG. 6 [D] of FIG. 6 respectively show a structure in which fasteners having different sizes are interpolated.
  • the outer surface of the fastener 3 is in contact with the front end portion 28A of the fixing member 28 and pushes the fixing member 28 outward so that the fixing member 28 protrudes out of the socket portion 22. Rotating so that the pressing member 29 is pressed against the outer surface of the fixing member 28 protruding to the outside of the socket 22 after the fastening is completed to press the fixing member 28 inward to fix the adapter 20 ) And the fastener 3 is made.
  • the fixing member 28 is freely rotated on the withdrawal hole 22a through the rotation shaft, the fixing member 28 is not shown as shown in [C] and [D] of FIG.
  • the fixing member 28 is not shown as shown in [C] and [D] of FIG.
  • the contact between the fixing member 28 and the circular fastener 3 is made, and the pressing member 29 is in contact with the pressing member 29. Pressurization and fixing through the interference fit has the advantage.
  • the pressing member 29 may further include an elastic member (not shown) that is elastically supported in the forward direction when the forward and backward sliding movement in the outer peripheral surface of the socket portion 22, in this case
  • an elastic member (not shown) that is elastically supported in the forward direction when the forward and backward sliding movement in the outer peripheral surface of the socket portion 22, in this case
  • the fixing member 28 and the slit groove 29A and Combination is made, in this case by pressing the pressing member 29 further forward through the press fit, the fixing is completed, the slide coupling structure between the socket portion 22 and the pressing member 29 is a stopper and those skilled in the art It can be sufficiently predicted and reproduced through a guide structure or the like (not shown), and the detailed description is omitted since it is less relevant to essential features of the present invention.

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  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

La présente invention concerne un ensemble mandrin de perçage destiné à un outil motorisé, en particulier, un ensemble mandrin de perçage qui permet à un foret d'être facilement et solidement monté et utilisé dans un outil motorisé tel qu'une visseuse électrique et une perceuse à percussion et, plus particulièrement, un ensemble mandrin de perçage destiné à un outil motorisé, qui comprend un élément de boulon et un élément de raccordement, couplé à un adaptateur pour le raccordement d'un mandrin de perçage et d'un outil motorisé, de façon à renforcer la rigidité de l'adaptateur, ce qui élimine un choc appliqué à l'adaptateur et empêche ainsi l'adaptateur d'être cassé pendant la rotation.
PCT/KR2015/000953 2015-01-29 2015-01-29 Ensemble mandrin de perçage destiné à un outil motorisé Ceased WO2016122021A1 (fr)

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CN107199537A (zh) * 2017-07-12 2017-09-26 昆山义成工具有限公司 多功能夹头

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JP2002001681A (ja) * 2000-06-19 2002-01-08 Nippon Fuasutemu Kk 全ネジ用ケミカルチャック治具
JP3132066U (ja) * 2007-03-13 2007-05-31 モトコマ株式会社 電動工具における先端工具のチャック機構
US20100219595A1 (en) * 2009-02-27 2010-09-02 Maxwell Moore Drill adapter for an air impact wrench
KR20120111575A (ko) * 2011-04-01 2012-10-10 현대로템 주식회사 핸드 드릴 어댑터
KR20120120276A (ko) * 2010-01-12 2012-11-01 크루-테크 피티와이 리미티드 다중-비트 공구

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JP2002001681A (ja) * 2000-06-19 2002-01-08 Nippon Fuasutemu Kk 全ネジ用ケミカルチャック治具
JP3132066U (ja) * 2007-03-13 2007-05-31 モトコマ株式会社 電動工具における先端工具のチャック機構
US20100219595A1 (en) * 2009-02-27 2010-09-02 Maxwell Moore Drill adapter for an air impact wrench
KR20120120276A (ko) * 2010-01-12 2012-11-01 크루-테크 피티와이 리미티드 다중-비트 공구
KR20120111575A (ko) * 2011-04-01 2012-10-10 현대로템 주식회사 핸드 드릴 어댑터

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CN107199537A (zh) * 2017-07-12 2017-09-26 昆山义成工具有限公司 多功能夹头

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