KR20120056793A - One-way ratchet wheel element - Google Patents

One-way ratchet wheel element Download PDF

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Publication number
KR20120056793A
KR20120056793A KR1020110124058A KR20110124058A KR20120056793A KR 20120056793 A KR20120056793 A KR 20120056793A KR 1020110124058 A KR1020110124058 A KR 1020110124058A KR 20110124058 A KR20110124058 A KR 20110124058A KR 20120056793 A KR20120056793 A KR 20120056793A
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KR
South Korea
Prior art keywords
hole
wheel
driven wheel
main body
driving
Prior art date
Application number
KR1020110124058A
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Korean (ko)
Inventor
쳉-쿤 첸
Original Assignee
쳉-쿤 첸
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 쳉-쿤 첸 filed Critical 쳉-쿤 첸
Priority to KR1020110124058A priority Critical patent/KR20120056793A/en
Publication of KR20120056793A publication Critical patent/KR20120056793A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • B25B13/462—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis
    • B25B13/463—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis a pawl engaging an externally toothed wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

The present invention is provided with a drive wheel and a driven wheel which are engaged with each other and interlocked with each other, the shift wheel is provided on one side to which the main body and the driven wheel is connected, and snaps to a relative inclined surface on the other side of the shift space (snap tooth) End is installed, and when the driven wheel rotates at the snap fastening end of the relative inclined surface, it forms a snapping state by forming a resistive force that prevents rotation of the driving wheel, and idling when the driven wheel rotates away from the snap fastening end of the relative inclined surface. A one-way ratchet assembly forming a state.

Description

One-way ratchet assembly {ONE-WAY RATCHET WHEEL ELEMENT}

The present invention relates to a ratchet structure, and more particularly to a one-way ratchet assembly that can be reliably operated and does not slip easily.

As shown in FIG. 11, in the one-way driving mechanism used in the conventional wrench, an accommodating hole 92 is installed at one end of the wrench 91, a ratchet block 93 is installed in the accommodating hole 92, and the ratchet block 93 is provided. A plurality of inclined recesses 94 are provided around the outer circumferential surface thereof, and a plurality of transmission spaces 95 are provided between the respective inclined recesses 94 and the inner wall of the storage hole 92. Each transmission space (95) is provided with a roller (96) and the roller (96) can be snapped to one side of the inner wall of the receiving hole (92) in one direction, so that the ratchet block (93) And rotating the parts set on the wrench. However, the ratchet wrench designed in such a structure is easily worn because the action force is concentrated on the edge of the ratchet block 93, and the roller 96 easily swings when the force is applied too much. To form. In addition, because the torsional force is much smaller than the conventional ratchet wrench, it is necessary to go through a special reinforcement to reach the torsional force criterion and lower the cost.

The present invention relates to a one-way ratchet assembly, the first object of providing a desired strength and rotational force by using the inclined surface action and the engagement between the ratchet to ensure that the ratchet assembly does not slip in operation.

The present invention relates to a one-way ratchet assembly, and a second object is to achieve an effect close to an endless drive to apply to a narrow work space.

The present invention relates to a one-way ratchet assembly, and its third object is to be applicable to all one-way drive mechanisms such as wrenches, flywheels, one-way bearings and ratchet chairbacks on the market.

In order to achieve the above object, the present invention includes a first hole and a second hole, the first hole is provided with a driving wheel, a central portion of the driving wheel is formed with a rotating portion to rotate by driving the rotating member, A first tooth wheel portion surrounding the outer circumferential surface is provided, and defines a direction in which the driving wheels of the main body are led in the driving direction, a shift space is provided on one side of the second hole in the driving direction, and the shift space of the second hole is A main body having a snap tooth end formed with a plurality of mini-toothed teeth continuously arranged on a relative inclined surface of the other side; And

A second tooth portion provided in the second hole of the main body and surrounding the outer circumferential surface of the driven wheel and engaged with the first tooth portion and a jersey tooth portion engaged with the snap fastening end of the second hole; Is drawn to rotate in the direction of the snap fastening end of the relative inclined surface on the other side of the shift space, and the jersey tooth is engaged with the snap fastening end to form a snap state, and when the main body rotates in the direction opposite to the driving direction, Provided is a one-way ratchet assembly including a driven wheel that rotates away from the snap engagement end of the relative inclined surface to form an idle state.

According to the present invention, the ratchet assembly can be reliably slid during operation by providing the desired strength and rotational force by using the engagement between the inclined surface action and the ratchet.

1 is a structural diagram of the present invention.
2 is a three-dimensional exploded view according to a first embodiment of the present invention.
3 is a three-dimensional view after assembly according to the first embodiment of the present invention.
4 is a structural diagram according to a first embodiment of the present invention.
Fig. 5 is a state diagram of use according to the first embodiment of the present invention and shows a state when the main body rotates in the driving direction.
Fig. 6 is a state diagram of use according to the first embodiment of the present invention and shows a state when the main body rotates in the direction opposite to the driving direction.
7 is a structural diagram according to a second embodiment of the present invention.
Fig. 8 is a state diagram of use according to the second embodiment of the present invention and shows a state when the driven wheel is switched.
9 is a perspective view illustrating a state of use according to the second embodiment of the present invention, in which the main body is rotated in the opposite direction.
10 is a structural diagram according to a third embodiment of the present invention.
11 is a structural diagram of a conventional endless ratchet wrench.

Referring to FIG. 1, the present invention relates to a one-way ratchet assembly and includes a main body 11, a driving wheel 21, and a driven wheel 31. Among them, a first hole 13 and a second hole 14 are installed in the main body 11, a driving wheel 21 is installed in the first hole 13, and a rotation is performed at a central portion of the driving wheel 21. A rotating part 23 is formed to guide and rotate the member 41. The rotating member 41 may be a rotating shaft or a screw coupling part, and the first tooth wheel part 22 surrounding the outer circumferential surface of the driving wheel 21 is installed. The direction in which the driving wheel 21 of the main body 11 is led is defined as a driving direction R, and a shift space 141 is provided on one side of the second hole 14 in the driving direction R. On the other inclined surface of the second space 14 of the shift space 141, a snap fastening end 142 is formed in which a plurality of mini-type teeth are continuously arranged.

The second wheel 31 is installed in the second hole 14 of the main body 11 and surrounds the outer circumferential surface of the driven wheel 31 and engages with the first tooth wheel 22. And a jersey toothed portion 33 engaged with the snap fastening end 142 of the second hole 14, and the driven wheel 31 is attracted to the driving wheel 21 to the other side of the shift space 141. Rotate in the direction of the snap fastening end 142 of the relative inclined surface. In addition, when the stop tooth 33 is engaged with the snap fastening end 142 and the driving wheel 21 is led to the driven wheel 31 to engage with the snap fastening end 142 of the relative inclined surface of the wedge (wedge) By forming a reaction force, it is possible to reliably prevent the rotation of the driving wheel 21, and finally to cancel the torque action force for driving the ratchet to form a snap state.

However, when the main body 11 rotates in a direction opposite to the driving direction R, the stopping tooth portion 33 of the driven wheel 31 rotates away from the snap fastening end 142 of the relative inclined surface. Out of engagement with the snap fastening end 142. At this time, since the reaction force of the inclined surface is lost, the driving wheel 21 idles in the opposite direction, thereby driving in one direction.

2 to 4 relate to the first embodiment applied to the ratchet of the present invention, which is composed of a main body 11, a driving wheel 21 and a driven wheel 31. In the present embodiment, the main body 11 is composed of side plates 12 facing each other, and the first hole 13 and the second hole 14 in the cross section of the main body 11 composed of the two side plates 12, respectively. ) And the first hole 13 and the second hole 14 do not communicate with each other. The driving wheel 21 is fitted into the first hole 13 by the two side plates 12, surrounds the outer circumferential surface of the driving wheel 21, and the first tooth wheel part 22 is installed, and the driving wheel ( The central portion of the 21 is formed with a rotating portion 23 to guide the rotating member 41 to rotate. In the present embodiment, the rotating member 41 is a screw coupling component, and defines a driving direction R as a driving direction R of the driving wheel 21 of the main body 11 and the driving direction of the second hole 14. A shift space 141 is provided on one side to (R), and a plurality of miniature teeth are continuously arranged on a relative inclined surface located on the other side of the shift space 141 of the second hole 14. A stage 142 is installed. The snap fastening end 142 may be composed of 60 to 100 miniature teeth. In the present embodiment, the snap fastening end 142 is configured of 90 miniature teeth.

The driven wheel 31 is fitted into the second hole 14 of the two side plates 12 and surrounds the outer circumferential surface of the driven wheel 31 so that the second toothed portion 32 and the stopping toothed portion 33 The second tooth wheel part 32 and the stop tooth wheel part 33 are installed to be surrounded by positions of different heights on the outer circumferential surface of the driven wheel 31, respectively. Among them, the second toothed portion 32 is engaged with and interlocked with the first toothed portion 22 of the drive wheel 21 between the two side plates 12 and in the present embodiment the jersey. The toothed portion 33 is composed of 90 miniature teeth. In addition, when the main body 11 is rotated in the driving direction (R), the driven wheel 31 is attracted to the driving wheel 11, the snap fastening end 142 of the relative inclined surface on the other side of the shift space 141 Rotate in the direction of. In addition, the stop tooth portion 33 is engaged with the snap fastening end 142 to generate a resistance to block the rotation of the drive wheel 21. In addition, since the diameter of the driving wheel 21 is larger than the driven wheel 31, when the driving wheel 21 drives the driven wheel 31 to rotate, the stopping tooth part 33 of the driven wheel 31 is drained a plurality of times. Proceed with the operation.

Referring to FIG. 5, when the present invention composed of the members is actually used, the user may engage the rotating part 23 of the driving wheel 21 with the screw coupling part 41 and also apply a force to the main body 11. When the main body 11 is rotated along the driving direction R, the driving wheel 21 leads the driven wheel 31 to snap a snap end 142 of a relative inclined surface on the other side of the shift space 141. Rotate in the direction of). In addition, when the stop gear 33 is engaged with the snap fastening end 142 and the driving wheel 21 is led to the driven wheel 31 to engage with the snap fastening end 142 of the relative inclined surface, the reaction force of the inclined surface is reduced. It can be formed to prevent the rotation of the drive wheel 21 to be sure, and finally to cancel the torque action force for driving the ratchet can form a snap state. In addition, when the main body 11 rotates toward the driving direction R, a locking or releasing operation may be driven with respect to the screw coupling part 41 engaged with the rotating part 23 of the driving wheel 21 at the same time.

In addition, when the main body 11 of the wrench rotates in a direction opposite to the driving direction R by changing the direction in which the user applies the force, as shown in FIG. 6, the main body 11 moves in the driving direction R. When rotating in a direction opposite to that, the stopping tooth part 33 of the driven wheel 31 rotates away from the snap fastening end 142 of the relative inclined surface and is out of engagement with the snap fastening end 142. To do that. At this time, since the reaction force of the inclined surface is lost, when the main body 11 rotates in the opposite direction, the screw coupling part 41 is not led and also rotates about the driving wheel 21, thereby causing a one-way drive.

However, it will be described in particular that the present invention can achieve the one-way drive by using the action of the inclined surface as compared to the conventional ratchet wrench can achieve the effect of the one-way drive without a separate elastic support drive block. Therefore, the structure and configuration are simpler than the conventional ratchet wrench, and are easier to assemble, and the stopping tooth part 33 of the driven wheel 31 is rotated when the main body 11 rotates in the driving direction R. As the user engages the snap fastening end 142 of the second hole 14, when the user applies a force toward the driving direction R, the snap fastening end 142 and the stopping tooth part 33 are mutually different. The reaction force of the formed inclined surface is also greater so that idling phenomenon does not occur reliably when using the present invention. Therefore, even if the snap fastening end 142 and the stop tooth portion 33 of the present invention is composed of 60 or 100 mini-tooth structure, there is no worry that the strength or rotation force will be insufficient. In addition, the driving wheel 21 can lead the driven wheel 31 to simulate the operation of a plurality of drainage can be lowered the angle required for the work and the wrench of the present invention closer to the effect of the stepless drive in a narrow work space To be applied.

7 shows that the wrench of the present invention is applied to the second embodiment, and the second hole 14 is divided into the first area 14a and the second area 14b, and is different from the first embodiment. The main body 11 is provided with an elastic member 15 which communicates with the second hole with respect to one side of the second hole 14 and the switching member 42 on the outer circumferential surfaces of the driving wheel 21 and the driven wheel 31. This is provided so that the driven wheel 31 can perform a switching operation in the first region 14a and the second region 14b. In addition, the elastic member 15 is elastically blocked on one side of the switching member 42 to restrict the driven wheels 31 to be accommodated in one of the regions 14a and 14b, and the two regions 14a and 14b. ) And snap fastening ends 142a and 142b respectively installed in opposite directions.

Therefore, if the user wants to change the rotational direction of the screw engagement member 41 of the wrench, as shown in FIG. 8, when the switching member 42 is pressed, the driven wheel 31 is moved to the second area of the second hole 14 ( 14b). In this case, since the snap fastening end 142b of the second area 14b and the snap fastening end 142a of the first area 14a are installed in opposite directions, when the user rotates the main body 11 in the opposite direction. As shown in FIG. 9, the driven wheel 31 is driven by the driving wheel 21 to rotate in the direction of the snap fastening end 142b of the second region 14b. In addition, the blocking tooth 33 is engaged with the snap fastening end 142b of the relative inclined surface to prevent rotation of the driving wheel 21. If the main body 11 is to be rotated in the original direction in the above state, the stopping tooth part 33 of the driven wheel 31 is rotated away from the snap fastening end 142b of the relative inclined surface and the shift space ( Inclining to 141 may release the engaged state of the snap fastening end 142b of the second region 14b. At this time, since the reaction force of the inclined surface is lost, the main body 11 smoothly performs an idling motion with respect to the driving wheel 21, and the driven wheel 31 can switch with respect to the positions of the two regions 14a and 14b. It is possible to switch in both directions to achieve the effect of changing the drive direction of the wrench.

10 is a third embodiment in which the present invention is applied to another wrench. The main body 11 is integral with the first embodiment, and the first hole 13 and the second hole 14 are provided, and the first hole 13 and the second hole 14 are different from the first embodiment. Are in communication with each other. Among them, a first toothed part is disposed around the outer circumferential surface of the driving wheel 21, and the drive wheel 21 is accommodated in the first hole 13 and surrounds the outer circumferential surface of the driven wheel 31. 22 is provided with a second toothed portion 32 which can be engaged with each other, and a jersey toothed portion composed of a plurality of mini-toothed teeth each at a cross section of an endendum of the second toothed portion 32 ( 33 is provided, and the second toothed portion 32 and the stopping toothed portion 33 are respectively installed at positions of the same height surrounding the outer circumferential surface of the driven wheel 31.

In the third embodiment of the present invention constituted by the members, when the main body 11 rotates in the driving direction R, the driven wheel 31 is similarly attracted to the driving wheel 21 so that the second hole 14 is rotated. Rotates in the direction of the snap fastening end 142 of the relative inclined surface on the other side of the shift space 141 of the shift space 141, and the jersey toothed portion 33 meshes with the snap fastening end 142 to the driving wheel 21. Forms a resistive force that retards rotation and achieves the effect of one-way drive. This achieves the goal of one-way drive, showing that the one-way ratchet assembly of the present application is applicable to all types of wrenches, regardless of the type or shape of the body 11.

In addition, the one-way ratchet assembly of the present invention is applied to a mechanism having one-way driving, such as a one-way bearing or a ratchet backrest of a bicycle flywheel, and the one-way bearing or ratchet backrest of the driving wheel 21 and When combined with the hub shaft, the one-way driving action having a one-way drive mechanism, such as a one-way bearing or a ratchet chair, may have the effect of being able to rotate and not easily slip. In addition, when the one-way ratchet assembly of the present invention is applied to a bicycle flywheel, it can not only smoothly and make no noise when idling, but also has an advantage of absorbing the instantaneous shock generated when treading the bicycle flywheel by an inclined surface to increase durability. .

11: body 13: first hole
14: second hole 21: drive wheel
22: first toothed portion 31: driven wheel
41: rotation member 141: shift space
14: snap fastener

Claims (7)

A first wheel and a second hole, the first hole is provided with a driving wheel, a central portion of the driving wheel is formed with a rotating part for rotating the guide member to rotate, the first tooth portion surrounding the outer peripheral surface of the drive wheel is installed And a direction in which the driving wheels of the main body are driven as a driving direction, a shift space is provided on one side of the second hole in the driving direction, and a plurality of minis are provided on the relative inclined surface of the other side of the shift space of the second hole. A main body having snap teeth configured to have a continuous tooth arrangement; And
A second tooth portion provided in the second hole of the main body and surrounding the outer circumferential surface of the driven wheel and engaged with the first tooth portion and a jersey tooth portion engaged with the snap fastening end of the second hole; Is drawn to rotate in the direction of the snap fastening end of the relative inclined surface on the other side of the shift space, and the jersey tooth is engaged with the snap fastening end to form a snap state, and when the main body rotates in the direction opposite to the driving direction, A one-way ratchet assembly comprising a driven wheel that rotates while the stopping tooth portion of the driven wheel rotates away from the snap fastening end of the relative inclined surface to form an idle state. The one-way ratchet assembly according to claim 1, wherein the second toothed portion and the stopping toothed portion of the driven wheel are respectively installed at positions of different heights surrounding the outer circumferential surface of the driven wheel. The one-way ratchet assembly of claim 1, wherein the main body includes two side plates corresponding to each other, and the first hole and the second hole are respectively provided in a cross section of the main body consisting of the two side plates. 4. The one-way ratchet assembly according to claim 3, wherein the second and second toothed portions of the driven wheels are respectively disposed at positions of different heights surrounding the outer circumferential surface of the driven wheels. The method of claim 1, wherein the second hole is divided into a first region and a second region, the main body is provided with an elastic member that can communicate with the second hole with respect to one side of the second hole, the driven wheel is the first Switching operation can be performed in the first region and the second region, and the elastic member restricts the driven wheel to be accommodated in one region by elastic blocking, and snap fastening ends are provided in the opposite directions in the two regions, respectively. One-way ratchet assembly. The one-way ratchet assembly according to claim 5, wherein a switching member is provided on the outer circumferential surfaces of the driving wheel and the driven wheel, and the switching member causes the driven wheel to perform a switching operation between the first area and the second area. 2. The driving wheel according to claim 1, wherein the jersey toothed portion is provided at a cross section of each endendum of the second toothed portion of the drive wheel, and the second toothed portion and the jerseyed toothed portion respectively surround an outer circumferential surface of the driven wheel. One-way ratchet assembly installed in the same height position.
KR1020110124058A 2010-11-25 2011-11-25 One-way ratchet wheel element KR20120056793A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110124058A KR20120056793A (en) 2010-11-25 2011-11-25 One-way ratchet wheel element

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW099140868 2010-11-25
KR1020110124058A KR20120056793A (en) 2010-11-25 2011-11-25 One-way ratchet wheel element

Publications (1)

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KR20120056793A true KR20120056793A (en) 2012-06-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013008960A1 (en) 2012-05-29 2013-12-05 Mando Corporation An electric power steering system and method for checking the initial driving thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013008960A1 (en) 2012-05-29 2013-12-05 Mando Corporation An electric power steering system and method for checking the initial driving thereof

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