Mechanical type Die Sha mechanism
Technical field
The invention relates to a kind of Die Sha mechanism, particularly about a kind of mechanical type Die Sha mechanism.
Background technique
Common brake mechanism comprises drum brake organization (calling Gu Sha mechanism in the following text) and Disk brake mechanism (calling Die Sha mechanism in the following text), wherein Die Sha mechanism is all better than Gu Sha mechanism in performances such as braking effect and maintenance Discussing Conveniences, is therefore generally applied to the braking system of vehicle (as bicycle, electric booster bicycle).
Die Sha mechanism can be divided into again hydraulic type Die Sha mechanism and mechanical type Die Sha mechanism according to the difference of its strength conductive medium, hydraulic type Die Sha mechanism is that the principle of utilizing hydraulic oil to promote piston provides braking force, mechanical type Die Sha mechanism directly utilizes brake wire to conduct strength and promote Braking piece, therefore for hydraulic type Die Sha mechanism, mechanical type Die Sha mechanism has advantages of low cost, less trouble.
But the known mechanical type Die Sha of part mechanism is only monolateral against brake rotor, its braking effect is poor, and only monolateral stressed brake rotor also easily produces distortion.Although also there is at present the bilateral mechanical type Die Sha mechanism that clips brake rotor, so for the synchronous Braking piece that is positioned at brake rotor both sides that drives, the driving mechanism of known mechanical type Die Sha mechanism often has the problem of complex structure or transmission poor effect.
Summary of the invention
The object of the present invention is to provide a kind of structure comparatively to simplify and can synchronously drive the mechanical type Die Sha mechanism that is positioned at brake rotor both sides Braking piece.
For achieving the above object, mechanical type Die Sha provided by the invention mechanism, compels a brake rotor in order to press from both sides, and this mechanical type Die Sha mechanism comprises:
One fixed base, this fixed base has a brake rotor groove in order to be installed with the some of this brake rotor;
One driving member, is to be located at rotationally in fixed base around an axis, and this driving member has a pushing part and a docking part;
One crank, has a junction and a follower, and this joint is connected in this end-to-end joint part, and this follower is for being connected in a brake wire;
One first Braking piece, is located in this brake rotor groove and is positioned at this brake rotor one side;
One second Braking piece, is located in this brake rotor groove and is positioned at the another side of this brake rotor;
One group of handle, is hubbed at this fixed base and has one and be subject to the pushing part and of push arm next-door neighbour driving member to support arm to be close to the second Braking piece; And
One translation means, in order to make at least one part translation between the online primary importance of this axle and a second place of driving member in the time that driving member rotates;
Wherein, when this driving member is by primary importance during towards second place translation, the pushing part of this driving member promotes the push arm that is subject to of this first Braking piece and this group of handle, this group of handle promoted rear generation pivot pendulum and makes it support arm promoting the second Braking piece, first, second Braking piece is moved in opposite directions and clip this brake rotor with this.
Described mechanical type Die Sha mechanism, wherein, these translation means comprise that at least one roll piece and a block are fixedly arranged on this fixed base, this block has the first curve bath of at least one corresponding roll piece, this driving member has the second curve bath of at least one corresponding roll piece, respectively one end of this first, second curve bath is compared with dark and another end is more shallow, and this roll piece is between first, second curve bath.
Described mechanical type Die Sha mechanism, wherein, comprises that a guide rod is located at this fixed base, and this first, second Braking piece respectively has a guide hole, and this guide rod is arranged in this two guide hole and in order to guide the deformation trace of this first, second Braking piece.
Described mechanical type Die Sha mechanism, wherein, comprises that one first elastic component is located between first, second Braking piece and this first, second Braking piece elasticity prestressing is away from each other provided.
Described mechanical type Die Sha mechanism, wherein, comprises that one second elastic component is located between crank and fixed base, in order to make crank reset in the time not driven by brake wire.
Described mechanical type Die Sha mechanism, wherein, this group of handle has a pivot hole to be subject to push arm and to support between arm and a pivot is arranged in this pivot hole, and this fixed base has a pin-joint part in order to support this pivot.
As shown in the above description, the present invention is by allow driving member promote the first Braking piece and dial handle simultaneously, promote the second Braking piece by dialling handle pivot pendulum again, make first, second Braking piece locking phase to displacement and clip brake rotor, visible mechanical type Die Sha of the present invention mechanism has the advantages such as simple in structure, braking effect is good, to meet industrial circle demand.
Accompanying drawing explanation
Fig. 1 is the stereogram that mechanical type Die Sha of the present invention mechanism matches with brake rotor.
Fig. 2 is the exploded view of mechanical type Die Sha of the present invention mechanism.
Fig. 3 is the sectional view that mechanical type Die Sha of the present invention mechanism matches with brake rotor, and wherein driving member system is positioned at primary importance.
Fig. 4 is the sectional view that mechanical type Die Sha of the present invention mechanism matches with brake rotor, and wherein driving member system is positioned at the second place.
Fig. 5 is the schematic diagram of the block of mechanical type Die Sha of the present invention mechanism.
Fig. 6 is the sectional view that another mechanical type of the present invention Die Sha mechanism matches with brake rotor.
Fig. 7 is the present invention's sectional view that another mechanical type Die Sha mechanism matches with brake rotor again.
Primary clustering symbol description in accompanying drawing
Fixed base 10; Brake rotor groove 11; Pin-joint part 12; Brake rotor 20; Driving member 30,30a; Pushing part 31; End-to-end joint part 32; The second curve bath 33; Guide screw line 34a; Crank 40; Joint 41; Follower 42; Nut 45; The first Braking piece 50; Guide hole 51; The second Braking piece 60; Guide hole 61; Dial handle 70; Be subject to push arm 71; Support arm 72; Pivot 73; Pivot hole 74; Roll piece 80; Block 81,81a; The first curve bath 82; Guide screw line 83a; Guide rod 90; The first elastic component 100; The second elastic component 110; Driving member 120; Screw rod 121; Nut 122; End-to-end joint part 123; Pushing part 124; Crank 130; The first Braking piece 140; Dial handle 150; Fixed base 160; Linear guide groove 161; Axis L.
Embodiment
Mechanical type Die Sha provided by the invention mechanism compels a brake rotor in order to press from both sides, it comprises a fixed base, one crank, one driving member, one first Braking piece, one second Braking piece, the one group of handle and translation means, this fixed base has a brake rotor groove in order to be installed with the some of brake rotor, this crank has a junction and a follower, this follower is for being connected in a brake wire, this driving member can be located in fixed base rotationally around an axis, and this driving member has a pushing part and a docking part is connected in this joint, this is first years old, the second Braking piece is located in brake rotor groove and is laid respectively at brake rotor both sides, this group of handle is hubbed at this fixed base and has one and be subject to push arm and to support arm, these translation means are at least one part translations between the online primary importance of this axle and a second place in order to rotate seasonal driving member at driving member.
When this driving member is by primary importance during towards second place translation, the pushing part of this driving member promotes the push arm that is subject to of this first Braking piece and this group of handle, after this group of handle promoted, can produce pivot pendulum and make it support arm promoting the second Braking piece, make thus first, second Braking piece move in opposite directions and clip this brake rotor.
Be described in detail below in conjunction with accompanying drawing.
Please refer to Fig. 1 to Fig. 3, in preferred embodiment of the present invention, a kind ofly compel the mechanical type Die Sha mechanism of a brake rotor 20 and comprise a fixed base 10, a driving member 30, a crank 40, one first Braking piece 50, one second Braking piece 60, one group of handle 70 and translation means in order to press from both sides.
This fixed base 10 has a brake rotor groove 11 and can be fixed in the nearly wheel shaft of vehicle (as bicycle) place, and 20 of this brake rotors can synchronously be located at rotationally wheel shaft and its some is positioned at this brake rotor groove 11.
This driving member 30 is to be located at rotationally in fixed base 10 around an axis L, and this driving member 30 has a pushing part 31 and a docking part 32.
This crank 40 has a junction 41 and a follower 42, and this joint 41 is connected in this end-to-end joint part 32 and can synchronously rotates, and can utilize nut 45 spiral shells to be located at end-to-end joint part 32 and in the lump crank 40 to be fixed on to end-to-end joint part 32.This follower 42 is for being connected in a brake wire (not illustrating), and this crank 40 can be driven by brake wire and drive driving member 30 pivotables accordingly.
This first, second Braking piece 50,60 is all located in this brake rotor groove 11 and is laid respectively at brake rotor 20 both sides.
This group of handle 70 is to be hubbed at fixed base 10 and to have a pushing part 31 and that is subject to push arm 71 to be close to driving member 30 to support arm 72 and be close to the second Braking piece 60.This group of handle 70 can be pivoted and be supported on a pin-joint part 12 of this fixed base 10 by a pivot 73, this group of handle 70 also has a pivot hole 74 and be subject to push arm 71 and supporting between arm 72 to supply pivot 73 to wear.Certainly, of the present invention other may embodiments in, dial handle and also can change and be otherwise hubbed at fixed base.
Described translation means are translations between a primary importance (as shown in Figure 3) on this axis L of at least one part in order to rotate seasonal driving member 30 at driving member 30 and a second place (as shown in Figure 4).In this preferred embodiment, these translation means comprise that three roll pieces 80 and a block 81 are fixed on this fixed base 10, this block 81 has the first curve bath 82 (as shown in Figure 5) of three corresponding roll pieces 80,30 of this driving members have the second curve bath 33 of three corresponding roll pieces 80, respectively one end of this first, second curve bath 82,33 is compared with dark and another end is more shallow, its groove depth is that 80 of this roll pieces are between the first curve bath 82, the second curve bath 33 to be formed by deeply gradually shallow mode.Wherein, the visual demand of quantity of roll piece and the first curve bath, the second curve bath arranges at least one, and quantity more at least cost is lower, and quantity can make the translation process of driving member comparatively smooth and easy more at most.On the other hand, in the insignificant occasion of frictional force, first, second curve bath can be selected a setting, and roll piece in translation means also can change one into and be located at block or one and be located at the projection of driving member; Further, translation means of the present invention also can change with other cam mechanism realizations, such cam mechanism is applicable to make the entirety of driving member to produce in the lump translation, or change screw mechanism as shown in Figure 6 into, between driving member 30a and block 81a, form guide screw line 34a, 83a, thus can synchronous translational in the time that driving member 30a rotates.
Thus, when crank 40 is pulled by brake wire, driving member 30 is rotated and by primary importance as shown in Figure 3 during towards second place translation shown in Fig. 4, what the pushing part 31 of this driving member 30 can promote these first Braking pieces 50 and this group of handle 70 is subject to push arm 71, after this group of handle 70 promoted, can produce pivot pendulum and make it support arm 72 promoting the second Braking piece 60, make accordingly the first Braking piece 50, the second Braking piece 60 move in opposite directions and clip this brake rotor 20, produce braking effect.
In order to make the displacement process of the first Braking piece 50, the second Braking piece 60 comparatively steady, mechanical type Die Sha of the present invention mechanism also can comprise that a guide rod 90 is located at this fixed base 10, this first Braking piece 50,60 of the second Braking pieces respectively have a guide hole 51,61, this guide rod 90 is arranged in this two guide hole 51,61 and in order to guide the deformation trace of this first Braking piece 50, the second Braking piece 60, preferably will allow the first Braking piece 50, the second Braking piece 60 can smoothly stick to the braking effect that reaches optimization in brake rotor 20 both sides.
In order after brake, the first Braking piece 50, the second Braking piece 60 to be resetted, mechanical type Die Sha of the present invention mechanism also can comprise that one first elastic component 100 is located between the first Braking piece 50, the second Braking piece 60 and this first Braking piece 50, the second Braking piece 60 elasticity prestressing are away from each other provided.
In addition, in order to make crank 40 returning position in the time not pullled by brake wire, mechanical type Die Sha of the present invention mechanism also can comprise that one second elastic component 110 is located between crank 40 and fixed base 10, and when this second elastic component 110 can provide torsion not driven by brake wire by crank 40, pivot pendulum resets.
Translation means of the present invention also can change into and only make the part of driving member produce translation, in example another embodiment of the present invention as shown in Figure 7, driving member 120 comprises that a screw rod 121 and nut 122 spiral shells are located at this screw rod 121, these screw rod 121 one end define this end-to-end joint part 123 and are connected with crank 130, 122, this nut be defined as pushing part 124 and in order to promote the first Braking piece 140 and dial handle 150, be provided with linear guide groove 161 in fixed base 160 inside and only can linear displacement in order to make nut 122 rotate, thus in the time that this screw rod 121 is subject to crank 130 to drive rotation, this nut 122 can axle online first, displacement between the second place, reach braking object with this, in other words, the translation means of the present embodiment comprise the cooperation that driving member is set as to screw rod and nut, and place restrictions on the design of nut rotation, to make when the bolt rotary nut produce translation.
Finally, must again illustrate, the constituent components that the present invention discloses in previous embodiment, only for illustrating, is not used for limiting the scope of the invention, the alternative or variation of other equivalent elements, and the claim scope that also should be the application contains.