CN108884890A - Cable guiding device and vehicle brake - Google Patents

Cable guiding device and vehicle brake Download PDF

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Publication number
CN108884890A
CN108884890A CN201780019945.XA CN201780019945A CN108884890A CN 108884890 A CN108884890 A CN 108884890A CN 201780019945 A CN201780019945 A CN 201780019945A CN 108884890 A CN108884890 A CN 108884890A
Authority
CN
China
Prior art keywords
cable
cover portion
guiding device
fixed
driving mechanism
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.)
Granted
Application number
CN201780019945.XA
Other languages
Chinese (zh)
Other versions
CN108884890B (en
Inventor
清水贵之
石丸善隆
岩田明大
森浩二
新谷觉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Advics Co Ltd
Hosei Brake Industry Co Ltd
Original Assignee
Advics Co Ltd
Hosei Brake Industry Co Ltd
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 Advics Co Ltd, Hosei Brake Industry Co Ltd filed Critical Advics Co Ltd
Publication of CN108884890A publication Critical patent/CN108884890A/en
Application granted granted Critical
Publication of CN108884890B publication Critical patent/CN108884890B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/04Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting mechanically
    • B60T11/046Using cables
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/04Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting mechanically
    • B60T11/06Equalising arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C1/00Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
    • F16C1/10Means for transmitting linear movement in a flexible sheathing, e.g. "Bowden-mechanisms"
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C1/00Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
    • F16C1/26Construction of guiding-sheathings or guiding-tubes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/02Braking members; Mounting thereof
    • F16D65/04Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/08Bands, shoes or pads; Pivots or supporting members therefor for internally-engaging brakes
    • F16D65/09Pivots or supporting members therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/14Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/14Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/22Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart, e.g. for drum brakes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/14Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/28Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged apart from the brake
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/50Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
    • F16J15/52Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J3/00Diaphragms; Bellows; Bellows pistons
    • F16J3/02Diaphragms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00Components of actuators
    • F16D2125/18Mechanical mechanisms
    • F16D2125/58Mechanical mechanisms transmitting linear movement
    • F16D2125/60Cables or chains, e.g. Bowden cables

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Braking Arrangements (AREA)
  • Braking Systems And Boosters (AREA)
  • Flexible Shafts (AREA)
  • Sealing Devices (AREA)
  • Diaphragms And Bellows (AREA)

Abstract

Cable guiding device for example has:First cover portion, consists of closed section, is extended along cable and by cable guidance with covering the state of cable for that can slide, and is configured to store the first lubricant incorporating section of lubricant between cable;With the second cover portion, consist of closed section, extended with covering the state of cable along cable, and constitute the second lubricant incorporating section, the second lubricant incorporating section is connected with the first lubricant incorporating section, and lubricant can be stored between cable, the second cover portion is stretched with cable relative to the relative movement of the first cover portion.

Description

Cable guiding device and vehicle brake
Technical field
The present invention relates to cable guiding device and vehicle brakes.
Background technique
In the past, it is known that a kind of vehicle brake has and turns the movement of the direct acting for being converted into cable of motor Change planes structure, keep brake-shoe mobile by making motor rotation pull cable, thus to obtain on-position (for example, patent document 1, 2)。
Patent document 1:Japanese Unexamined Patent Publication 2015-172385 bulletin
Patent document 2:No. 2013/0087418 specification of U.S. Patent No.
In this vehicle brake, such as there is following worry:Cable guiding device of the cable relative to guidance cable It is slided, thus cable guiding device, cable abrasion.Therefore, one of project of the invention, which is for example to obtain, easily inhibits cable The cable guiding device and vehicle brake of the abrasion of guiding device, cable.
Summary of the invention
Cable is for example stored and guided to cable guiding device of the invention, and above-mentioned cable is folded in brake component and driving mechanism Between, and above-mentioned brake component is drawn by the power of above-mentioned driving mechanism, to brake to wheel, above-mentioned cable draws Device is led to have:First cover portion, consists of closed section, is extended along above-mentioned cable and will be upper with covering the state of above-mentioned cable Cable guidance is stated as that can slide, and is configured to store the first lubricant storage of lubricant between above-mentioned cable Portion;With the second cover portion, closed section is consisted of, is extended with covering the state of above-mentioned cable along above-mentioned cable, and constitutes the Two lubricant incorporating sections, above-mentioned second lubricant incorporating section are connected with above-mentioned first lubricant incorporating section, and can with it is above-mentioned Lubricant is stored between cable, above-mentioned second cover portion has the first fixed part and the second fixed part, and above-mentioned first fixed part is to moisten The state and above-mentioned first cover portion that lubrication prescription is not leaked from above-mentioned first lubricant incorporating section and above-mentioned second lubricant incorporating section are solid Fixed, above-mentioned second fixed part is far from above-mentioned first cover portion and with lubricant not from the state of above-mentioned second lubricant incorporating section leakage It is fixed with above-mentioned cable, above-mentioned second cover portion is stretched with above-mentioned cable relative to the relative movement of above-mentioned first cover portion.By This, for example, easily inhibiting the abrasion of cable guiding device, cable using the lubricant in cable guiding device.In addition, since cable guides The generation of rust, abrasion powder in device, rust, abrasion powder are suppressed externally to being mixed into cable guiding device, therefore easily mention The stabilisation of the drive efficiency of high driving mechanism, durability.
In addition, in above-mentioned cable guiding device, for example, the both ends of extending direction of above-mentioned first cover portion in first cover portion There are two pars convolutas for tool between portion.As a result, for example, compared in the case where the first cover portion is provided with a pars convoluta, easily make to first The power dispersion applied relative to the sliding part of cable sliding in cover portion, therefore easily improve the durability of the first cover portion, cable.Separately Outside, compared in the case where there are three above pars convolutas for the setting of the first cover portion, it is easier to manufacture the first cover portion.
In addition, in above-mentioned cable guiding device, such as above-mentioned first cover portion is made of non-telescoping component, above-mentioned second cover portion It is made of the flexible extensible member of the extending direction along above-mentioned cable.
In addition, in above-mentioned cable guiding device, for example, above-mentioned driving mechanism is fixed on bearing part, above-mentioned first cover portion Be at least fixed on above-mentioned bearing part at the both ends of the extending direction of first cover portion.
In addition, in above-mentioned cable guiding device, for example, above-mentioned driving mechanism has a shell for being provided with hole portion, above-mentioned the One cover portion enters above-mentioned hole portion, and the seal member for being folded in the annular between above-mentioned first cover portion and above-mentioned shell enters above-mentioned hole Portion.
In addition, above-mentioned cable guiding device for example has a fixed part, fixation portions is connect and upward with above-mentioned first cover portion The outside for stating the first cover portion is stretched out, and above-mentioned driving mechanism is fixed on bearing part, and fixation portions has and above-mentioned bearing part Face overlapping face, above-mentioned first cover portion obliquely extends relative to the above-mentioned face of fixation portions.
In addition, vehicle brake of the invention has above-mentioned cable guiding device;Above-mentioned brake component;Above-mentioned driving machine Structure;Above-mentioned cable;Bearing part fixes above-mentioned driving mechanism;Driving mechanism fixed part, by above-mentioned driving Mechanism is fixed on above-mentioned bearing part;And the cable guiding device fixed part different from above-mentioned driving mechanism fixed part, Above-mentioned cable guiding device is fixed on above-mentioned bearing part.It, can not also be by cable as a result, for example, when removing driving mechanism Guiding device is removed from bearing part, therefore inhibits the leakage of lubricant.
In addition, vehicle brake of the invention has above-mentioned cable guiding device;Above-mentioned brake component;Above-mentioned driving machine Structure;Above-mentioned cable;Above-mentioned driving mechanism is fixed in bearing part;And shared fixed part, above-mentioned cable is guided Device and above-mentioned driving mechanism are fixed on above-mentioned bearing part.As a result, for example, sharing fixed part by cable guiding device and driving mechanism It is shared, therefore easily simplify the structure of vehicle brake.
Detailed description of the invention
Fig. 1 is illustrative and schematically shows from rear of vehicle after the vehicle brake of first embodiment View.
Fig. 2 is vehicle braking that is illustrative and schematically showing the first embodiment from vehicle-width direction outside The side view of device.
Fig. 3 is the side view of the movement of brake component that is illustrative and schematically showing first embodiment, and right and wrong Figure under on-position.
Fig. 4 is the side view of the movement of brake component that is illustrative and schematically showing first embodiment, and is system Figure under dynamic state.
Fig. 5 is the cross-sectional view of driving mechanism that is illustrative and schematically showing first embodiment, and is non-brake shape Figure under state.
Fig. 6 is the cross-sectional view of driving mechanism that is illustrative and schematically showing first embodiment, and is on-position Under figure.
Fig. 7 is the VII-VII cross-sectional view of Fig. 5.
Fig. 8 is the figure of driving mechanism that is illustrative and schematically showing first embodiment and cable guiding device.
Fig. 9 is illustrative and schematically shows the cable guiding device of first embodiment and the figure of cable.
Figure 10 is illustrative and schematically shows the cross-sectional view of a part of the cable guiding device of first embodiment.
Figure 11 is the figure of the first cover portion of cable guiding device that is illustrative and schematically showing first embodiment.
Figure 12 is the figure of the first cover portion of cable guiding device that is illustrative and schematically showing first embodiment.
Figure 13 is the cross-sectional view of the second cover portion of cable guiding device that is illustrative and schematically showing first embodiment.
Figure 14 is the figure of bearing part and the first cover portion illustrative and that schematically show first embodiment.
Figure 15 is a part of the vehicle brake of first embodiment, and be include bearing part and the first cover portion it Between fixed part part figure.
Figure 16 is the figure for indicating a part in section of the XVI-XVI line along Figure 14.
Figure 17 is illustrative and schematically shows the cable guiding device of second embodiment and the figure of cable.
Figure 18 is the cross-sectional view of driving mechanism that is illustrative and schematically showing second embodiment.
Figure 19 is the figure of the fixed part of cable guiding device that is illustrative and schematically showing third embodiment.
Figure 20 is the figure of the first cover portion of cable guiding device that is illustrative and schematically showing the 4th embodiment.
Figure 21 is the bearing part and cable of vehicle brake that is illustrative and schematically showing the 5th embodiment The figure of guiding device.
Figure 22 is the figure of cable guiding device that is illustrative and schematically showing the 5th embodiment.
Figure 23 is the figure of the first cover portion of cable guiding device that is illustrative and schematically showing the 5th embodiment.
Figure 24 is the figure of the metal parts of cable guiding device that is illustrative and schematically showing the 5th embodiment.
Figure 25 is a part of the first cover portion of cable guiding device that is illustrative and schematically showing sixth embodiment Figure.
Figure 26 is a part of the first cover portion of cable guiding device that is illustrative and schematically showing the 7th embodiment Figure.
Specific embodiment
Hereinafter, disclosing embodiment illustrated of the invention.The structure of embodiment as shown below and by the knot Effect and result (effect) brought by structure are an example.The present invention can also pass through the knot disclosed in the following embodiments and the accompanying drawings Structure except structure is realized.In addition, in accordance with the invention it is possible to obtaining the various effects (packet that structure through the invention obtains At least one of include derivative effect).
In addition, in multiple embodiments illustrated below, including constituent element with the same function.To with identical The constituent element of function marks common appended drawing reference, and the repetitive description thereof will be omitted sometimes.In addition, being in FIG. 1 to FIG. 4 Convenient for explanation, vehicle front in the front-back direction is indicated by the arrow X, is indicated by the arrow Y the outside of vehicle width direction (axial direction), The top of vehicle up and down direction is indicated by the arrow Z.
In addition, the brake gear 2 as vehicle brake example is applied to left side hereinafter, instantiating The case where rear-wheel (non-driving wheel), but the present invention equally can also apply to other wheels.
(first embodiment)
The structure > of < brake gear
As shown in Figure 1, brake gear 2 is incorporated in the inside of the peripheral wall 1a of cylindric wheel 1.In addition, brake Device 2 is configured to drum brake.That is, as shown in Fig. 2, brake gear 2 has the brake-shoe 3 of arc-shaped in front and rear sides. Cylindric drum 4 is provided with around brake gear 2 (referring to Fig. 3, Fig. 4).Drum 4 is around the rotation along vehicle width direction (Y-direction) Turn center C integrally to rotate with wheel 1.Brake gear 2 connects two brake-shoes 3 with the inner peripheral surface 4a with cylindric drum 4 The mode of touching is mobile.As a result, by the friction between brake-shoe 3 and drum 4, to drum 4 and then wheel 1 is braked.Brake-shoe 3 is One example of brake component.
Brake gear 2 has as the actuator for keeping brake-shoe 3 mobile through the hydraulic (ginseng of wheel cylinder 51 acted According to Fig. 2) and the motor 120 that is acted by energization (referring to Fig. 5).Wheel cylinder 51 and motor 120 are able to make two brake-shoes 3 is mobile.Wheel cylinder 51 for example for the braking in driving process, motor 120 for example for parking when braking.That is, brake fills 2 are set as an example of electric parking brake.In addition, motor 120 can be used for the braking in driving process.
As shown in Figure 1 and Figure 2, brake gear 2 has discoid bottom plate 6.Appearance of the bottom plate 6 to intersect with vehicle width direction Gesture setting.That is, bottom plate 6 is substantially along with the direction that vehicle width direction is intersected, specifically substantially along orthogonal direction (XZ plane) expansion Exhibition.As shown in Figure 1, the structure member of brake gear 2 is set to outside and the inside both sides of the vehicle width direction of bottom plate 6.Bottom plate 6 Directly or indirectly support each structure member of brake gear 2.That is, bottom plate 6 is an example of bearing part.In addition, bottom Plate 6 is connected to the connecting component (not shown) connecting with vehicle body.Connecting component be, for example, suspension a part (such as arm, ring, Installing component etc.).The opening portion 6b shown in Fig. 2 for being set to bottom plate 6 is used for and the combination of connecting component.In addition, brake fills Setting 2 also can be used in driving wheel.In the case where brake gear 2 is used for driving wheel, axle (not shown) is penetrated through shown in Fig. 2 The opening portion 6c for being set to bottom plate 6.Bottom plate 6 is for example made of metal material.
The configuration such as wheel cylinder 51 shown in Fig. 2, brake-shoe 3 is on the outside of the vehicle width direction of bottom plate 6.Brake-shoe 3 is supported by bottom plate 6 For that can move.In the present embodiment, as shown in figure 3, the lower end 3a of such as brake-shoe 3 by the bearing of bottom plate 6 for can be around Rotation center C1 rotation.Rotation center C1 and the rotation center C of wheel 1 are substantially parallel.In addition, wheel cylinder 51 is supported in bottom plate 6 Upper end.Wheel cylinder 51 has can be in vehicle front-rear direction (left and right directions of Fig. 2) two movable parts (not shown) outstanding (piston).Wheel cylinder 51 and pressurization correspondingly make two movable parts prominent.Two movable parts outstanding press the upper of brake-shoe 3 respectively End 3b.Using the protrusion of two movable parts, two brake-shoes 3 are rotated rotating around rotation center C1, and with upper end 3b in vehicle The mode of front-rear direction away from each other is mobile.Two brake-shoes 3 are moved to the radial outside of the rotation center C of wheel 1 as a result, It is dynamic.The peripheral part of each brake-shoe 3 is provided with the band-like liner 31 along barrel surface.Pass through two brake-shoes 3 as a result, to rotation The movement of the radial outside of center C, so that liner 31 is contacted with the inner peripheral surface 4a (referring to Fig. 4) of drum 4.Pass through liner 31 and inner circumferential Friction between the 4a of face, to drum 4 and then wheel 1 is braked.In addition, as shown in Fig. 2, brake gear 2 has recovery component 32.Restore component 32 by wheel cylinder 51 press brake-shoe 3 the discharged situation of movement under, make two brake-shoes 3 from drum 4 The position (application position Pb, referring to Fig. 4) of inner peripheral surface 4a contact is to position (the non-brake position not contacted with the inner peripheral surface 4a of drum 4 Set Pn, initial position, referring to Fig. 3) movement.Restoring component 32 is, for example, the elastomeric elements such as helical spring, is applied to each brake-shoe 3 Make it close to the power in the power in the direction of another brake-shoe 3, the i.e. direction of the inner peripheral surface 4a far from drum 4.
The structure and movement > of < mobile mechanism
In addition, brake gear 2 has the movement for keeping two brake-shoes 3 mobile to application position Pb from non-braking position Pn Mechanism 8 (referring to Fig. 3, Fig. 4).Mobile mechanism 8 is set on the outside of the vehicle width direction of bottom plate 6.As shown in Figure 2 to 4, mobile mechanism 8 have bar 81 (wherein, being not shown in Fig. 2), cable 82 and pillar 83.Bar 81 is configured to, in two brake-shoes 3 Between the brake-shoe 3L and bottom plate 6 in the left side of one such as Fig. 2, in the axial direction of the rotation center C of wheel 1 with brake-shoe 3L And bottom plate 6 is overlapped.In addition, bar 81 is braked hoof 3L bearing as that can rotate around rotation center C2.Rotation center C2 is located at braking The side of the separate rotation center C1 of hoof 3L, the end for being located at upside in Fig. 3, and it is big with rotation center C and rotation center C1 It causes parallel.Cable 82 is sticked in the lower end 81a of the side of the separate rotation center C2 of bar 81 by engaging part 84.Cable 82 Make the lower end 81a of bar 81 to another, the direction for example close to the brake-shoe 3R on the right side of Fig. 2 is moved.The substantially edge of cable 82 Bottom plate 6 is mobile.In addition, pillar 83 be folded in bar 81, be different from support the bar 81 brake-shoe 3L another brake-shoe 3R it Between, and be supported between bar 81 and another brake-shoe 3R.In addition, the link position P1 of bar 81 and pillar 83 is set at rotation Between link position P2 between center C2 and cable 82 and bar 81.
In this mobile mechanism 8, bar 81 such as Fig. 4 institute mobile to the right side of Fig. 3, Fig. 4 is pulled by cable 82 Show, (arrow a), bar 81 press brake-shoe 3R (arrow b) by pillar 83 when to mobile close to the direction of brake-shoe 3R.By This, from non-braking position Pn (Fig. 3), around rotation center C1 rotation, (arrow c) is contacted brake-shoe 3R to the inner peripheral surface 4a with drum 4 Position (application position Pb, Fig. 4) is mobile.In this state, the link position P2 between cable 82 and bar 81 is equivalent to force, rotation Turn center C2 and be equivalent to fulcrum, the link position P1 between bar 81 and pillar 8 is equivalent to position.Further, in brake-shoe 3R In the state of being contacted with inner peripheral surface 4a, when bar 81 is mobile to the right side of Fig. 3, Fig. 4, i.e. to the direction of the pressing of pillar 83 brake-shoe 3R When (arrow a) is supported by pillar 83, brake-shoe 3L using the link position P1 between pillar 83 as fulcrum, around Fig. 3, Rotation (arrow d) counterclockwise in Fig. 4.Brake-shoe 3L is rotated from non-braking position Pn (Fig. 3) around rotation center C1 as a result, to The position (application position Pb, Fig. 4) contacted with the inner peripheral surface 4a of drum 4 is mobile.In this way, passing through the work of mobile mechanism 8, brake-shoe 3L, 3R are mobile from non-braking position Pn to application position Pb.In addition, after brake-shoe 3R is contacted with the inner peripheral surface 4a of drum 4 Under state, the link position P1 between bar 81 and pillar 83 becomes fulcrum.In addition, the amount of movement pettiness of brake-shoe 3L, 3R, such as For 1mm or less.
Above-mentioned cable 82 is folded between brake-shoe 3 and driving mechanism 100, and is led by the power of driving mechanism 100 Draw brake-shoe 3, to brake to wheel 1.
< driving mechanism >
Fig. 1, Fig. 2, Fig. 5 and driving mechanism shown in fig. 6 100 make two systems by mobile mechanism 8 (referring to Fig. 3, Fig. 4) Dynamic hoof 3 is mobile from non-braking position Pn to application position Pb.As shown in Figure 1 and Figure 2, driving mechanism 100 is located at the vehicle width of bottom plate 6 On the inside of direction, and it is fixed on bottom plate 6.Fig. 2~cable shown in fig. 5 82 will be set to the opening portion 6d perforation of bottom plate 6 (referring to figure 5)。
As shown in figure 5, driving mechanism 100 has shell 110, motor 120, deceleration mechanism 130 and movement conversion mechanism 140。
Shell 110 supports motor 120, deceleration mechanism 130 and movement conversion mechanism 140.Shell 110 can be to include more The mode of a component is constituted.In this case, multiple components for example can combine one by the engaging member (not shown) such as screw Body.Shell 110 is fixed on bottom plate 6 using fixing pieces 115 such as screw (bolts).It is provided in shell 110 and is wrapped by wall portion 111 The receiving room R enclosed.Motor 120, deceleration mechanism 130 and movement conversion mechanism 140 are incorporated in receiving room R, and by wall portion 111 coverings.Shell 110 is referred to as pedestal, bearing part, shell etc..In addition, the structure of shell 110 is herein and unlimited In the structure of illustration.Fixing piece 115 is also referred to as engaging member.Fixing piece 115 is an example of driving mechanism fixed part.
Motor 120 is an example of actuator, with case 121 and the storage member being accommodated in case 121.Incorporating section It further include stator, rotor, coil, magnet (not shown) etc. in part for example other than including axis 122.Axis 122 from case 121 to Direction D1 along the first rotation center Ax1 of motor 120 is prominent.Direction D1 is right in Fig. 5.Motor 120 passes through based on control The driving power of signal processed and driven, and make axis 122 rotate.Axis 122 can also be referred to as output shaft.
Deceleration mechanism 130 includes multiple gears, and multiple gears can be rotated by the bearing of shell 110.Multiple gears are for example For first gear 131, second gear 132 and third gear 133.Deceleration mechanism 130 can also be referred to as rotary transfer machine.
First gear 131 and the axis 122 of motor 120 integrally rotate.First gear 131 can also be referred to as sliding tooth Wheel.
Second gear 132 is rotated around the second rotation center Ax2 parallel with the first rotation center Ax1.Second gear 132 is wrapped Include input gear 132a and output gear 132b.Input gear 132a is engaged with first gear 131.The number of teeth of input gear 132a The number of teeth than first gear 131 is more.Second gear 132 decelerates to the rotation speed lower than first gear 131 as a result,.Output gear Wheel 132b is located at the opposite direction of direction D1 relative to input gear 132a.Second gear 132 can also be referred to as idler gear.
Third gear 133 is rotated around the third rotation center Ax3 parallel with the first rotation center Ax1.Third gear 133 with The output gear 132b of second gear 132 is engaged.The number of teeth of the gear ratio output gear 132b of third gear 133 is more.As a result, Three gears 133 decelerate to the rotation speed lower than second gear 132.Third gear 133 can also be referred to as driven gear.This Outside, the structure of deceleration mechanism 130 is not limited to the structure illustrated here.Deceleration mechanism 130 be for example also possible to as use belt, The rotary transfer machine of pulley etc. is such, the rotary transfer machine in addition to gear mechanism.
Movement conversion mechanism 140 has rotary part 141 and direct acting component 142.
Rotary part 141 is rotated around third rotation center Ax3.Rotary part 141 has small diameter portion 141a and outer diameter than small Diameter portion 141a big large-diameter portion 141b.Small diameter portion 141a is in rotary part 141 positioned at the position of the opposite direction of direction D1, structure As tubular.Large-diameter portion 141b is the position for being located at direction D1 in rotary part 141.Large-diameter portion 141b has bottom wall part 141b1 With sidewall portion 141b2.Bottom wall part 141b1 is configured to circular ring shape from the end of the direction D1 of small diameter portion 141a to extending radially out It and is plate.Sidewall portion 141b2 extends from the peripheral part of bottom wall part 141b1 to direction D1, and is configured to cylindric.Sidewall portion 141b2 can also be referred to as peripheral wall portion, tubular wall portion.Large-diameter portion 141b is provided with the open recess portion 141b3 of direction D1.
The sidewall portion 141b2 of large-diameter portion 141b is provided with the tooth of third gear 133.That is, rotary part 141 is also third Gear 133.The position for being provided with the tooth of third gear 133 is an example of driven part.Shell is accommodated in recess portion 141b3 The cylindrical portion 112 of body 110.In recess portion 141b3, thrust bearing 143 is located at the end of the opposite direction of the direction D1 of cylindrical portion 112 Between portion 112a and bottom wall part 141b1.Thrust bearing 143 bears the axial load of third rotation center Ax3, thrust bearing 143 in the example of Fig. 5 be thrust roller bearing, but it is not limited to this.Large-diameter portion 141b and then rotary part 141 are by shell 110 It is that can rotate by the bearing of thrust bearing 143.
Small diameter portion 141a is inserted in the transverse bearing 144 that the first hole portion 113a of shell 110 is stored.First hole portion 113a Section be it is roughly circular.First hole portion 113a is axially extending along third rotation center Ax3's.Small diameter portion 141a and then rotating part Part 141 can be rotated by shell 110 by the bearing of transverse bearing 144.Transverse bearing 144 is metal shaft in the example of fig. 5 Lining, but it is not limited to this.
Rotary part 141 is provided with the through hole 141c of the circular cross-section of perforation small diameter portion 141a and bottom wall part 141b1. Through hole 141c is provided with internal thread part 145a.
Direct acting component 142 extends along third rotation center Ax3, and penetrates through rotary part 141.Direct acting component 142 has stick Shape portion 142a and linking part 142b.
Bar-shaped portion 142a be inserted in the through hole 141c of rotary part 141, rotary part 141 large-diameter portion 141b recess portion It 141b3 and is set in the second hole portion 113b of cylindrical portion 112 of shell 110.The section of second hole portion 113b is substantially round Shape.Second hole portion 113b is located at the direction D1 of the first hole portion 113a, and along the axially extending of third rotation center Ax3.Bar-shaped portion The section of 142a is roughly circular.Bar-shaped portion 142a is provided with external thread part 145b, external thread part 145b and rotary part 141 Internal thread part 145a engagement.
Linking part 142b is linked by the end 82a of connecting member 146 and cable 82.As shown in fig. 7, connecting member 146 Penetrate through the end 82a and linking part 142b of cable 82.Connecting member 146 is, for example, to sell.
As shown in fig. 7, the inner surface in the second hole portion 113b of the cylindrical portion 112 for being set to shell 110 is provided with groove portion 113c.Groove portion 113c is extended along third rotation center Ax3 with the width of constant and depth.Groove portion 113c is set to across Two positions of three rotation center Ax3.In the end of length direction of the groove portion 113c inserted with connecting member 146.Groove portion 113c The width that width in the circumferential direction of third rotation center Ax3 is set to the end of the length direction than connecting member 146 is slightly larger. It is abutted as a result, by connecting member 146 with the circumferential face of groove portion 113c, to limit connecting member 146 and then direct acting component 142 around third rotation center Ax3 rotation.In addition, as shown in fig. 6, connecting member 146 can move in recess portion 141b3. That is, connecting member 146 is located in recess portion 141b3 in the state that direct acting component 142 is located at application position Pb.In addition, Fig. 7 institute It is mobile to direction D1 that the face 113d of the direction D1 of the groove portion 113c shown limits connecting member 146.Face 113d can also be referred to as only Moving part, position restraining portions.In addition, the construction that direct acting component 142 is combined with cable 82 is not limited to the example of Fig. 7.
In this configuration, when the rotation of the axis 122 of motor 120 via deceleration mechanism 130 be transmitted to rotary part 141 from And when rotating rotary part 141, pass through the internal thread part 145a of rotary part 141 and the external thread part of direct acting component 142 The system limit of 145b engagement and the rotation of the direct acting component 142 based on shell 110 in groove portion 113c, thus 142 edge of direct acting component The axial direction of third rotation center Ax3 moves between non-braking position Pn (Fig. 5) and application position Pb (Fig. 6).
Position in the cylindrical portion 112 of shell 110, being provided with groove portion 113c is limitation connecting member 146 and then direct acting Component 142 around the rotationally constrained portion of the rotation of third rotation center Ax3 an example, and along third rotation center Ax3's One example of axially directed connecting member 146 and then the guide portion of direct acting component 142.
< cable guiding device >
In addition, brake gear 2 has cable guiding device 85 as shown in Fig. 2, Fig. 8, which stores cable It 82 and guides.
As shown in figure 9, cable guiding device 85 has the first cover portion 86 and by second cover portion 87 fixed with the first cover portion 86. As shown in Figure 10, cable 82 is connected in the first cover portion 86 and 87 interpolation of the second cover portion.First cover portion 86 be also referred to as base component, Non-telescoping component, the second cover portion 87 are also referred to as extensible member, bellows.If in other words, the first cover portion 86 is by non-telescoping property Non-telescoping component constitute, the second cover portion 87 is made of the flexible extensible member of the extending direction along cable 82.
As shown in figure 9, the first cover portion 86 is extended with the state for covering cable 82 along cable 82.Specifically, such as Figure 11, Shown in Figure 12, the first cover portion 86 is configured to cylindric.That is, the first cover portion 86 is configured to closed section.First cover portion 86 for example by Metal pipe is constituted.First cover portion 86 can slide the guidance of cable 82.First cover portion 86 is supported in bottom plate 6.First Cover portion 86 is made of metal material.
As shown in Figure 11, Figure 12, the front end of opposite side of first cover portion 86 with base end part 86a and base end part 86a 86b.Base end part 86a is inserted through the opening portion 6d of bottom plate 6 and is fixed on bottom plate 6 (referring to Fig. 5).In addition, the first cover portion 86 is in base There are three straight part 86d1,86d2,86d3 and two pars convolutas 86e1,86e2 for tool between end 86a and front end 86b.Straight It is provided with pars convoluta 86e1 between linear portion 86d1 and straight part 86d2, is set between straight part 86d2 and straight part 86d3 It is equipped with pars convoluta 86e2.
In addition, as shown in Figure 10, being provided with the through hole 86c of across base end part 86a Yu front end 86b in the first cover portion 86. In through hole 86c inserted with cable 82, cable 82 is relatively moved relative to the first cover portion 86.In addition, 86 structure of the first cover portion The first lubricant incorporating section 86i of lubricant 88 is accommodated between Cheng Yu cable 82.Lubricant 88 is, for example, lubricating grease etc..The One lubricant incorporating section 86i is contained in through hole 86c.In addition, the first cover portion 86 has:It is set to the large-diameter portion of front end 86b The 86h1 and outer diameter small diameter portion 86h2 smaller than large-diameter portion 86h1.The internal diameter of first cover portion 86 is can be for being set to cable 82 The size that engaging part 84 passes through.Base end part 86a is also referred to as one end (end), and front end 86b is also referred to as the other end (end).
As shown in figure 9, the second cover portion 87 is extended with the state for covering cable 82 along cable 82.Specifically, such as Figure 13 Shown, the second cover portion 87 is configured to tubular.That is, the second cover portion 87 is configured to closed section.Second cover portion 87 has base end part The pars contractilis of the corrugated tube shape of the front end 87b and across base end part 87a and front end 87b of the opposite side of 87a, base end part 87a 87c.In addition, being provided with via pars contractilis 87c and the through hole 87d of across base end part 87a and front end 87b in the second cover portion 87. As shown in Figure 10, in through hole 87d inserted with cable 82.In addition, the second cover portion 87 is formed between cable 82 and is accommodated with profit Second lubricant incorporating section 87e of lubrication prescription 88.Second lubricant incorporating section 87e is connected with the first lubricant incorporating section 86i.Second Lubricant incorporating section 87e is contained in through hole 87d.Second cover portion 87 by elastomer such as constituting.Base end part 87a is also claimed For one end (end), front end 87b is also referred to as the other end (end).
As shown in Figure 10, base end part 87a is not stored with lubricant 88 from the first lubricant incorporating section 86i and the second lubricant The front end of state (the limiting the state of leakage) and the first cover portion 86 of portion 87e (from base end part 87a and front end 86b) leakage 86b is fixed.Specifically, it is provided in the inner circumferential of base end part 87a:Large-diameter portion 87f1 stores the large-diameter portion of the first cover portion 86 86h1 and engage with large-diameter portion 86h1;With small diameter portion 87f2, a part of small diameter portion 86h2 is stored.Large-diameter portion 87f1 and small Diameter portion 87f2 is close to large-diameter portion 86h1 and small diameter portion 86h2 (straight part 86d3), quilt between base end part 87a and front end 86b Sealing.In addition, the inner periphery and the outer periphery in base end part 87a are respectively arranged with annular recess portion 86k, 86l.The setting of base end part 87a There are the part of recess portion 86k, 86l to become thin-walled, the easy flexible deformation of base end part 87a.As a result, for example, even if being hooked in base end part 87a Other component and in the case where digging, so that this is dug the load of deformation and be also not easy to be transferred to than recess portion 86k, 86l by front end 87b Side.Even if also being protected than recess portion 86k, 86l by the side front end 87b as a result, in the case where base end part 87a hooks other component Hold sealing function.
In addition, front end 87b is located remotely from the position of the first cover portion 86, and do not stored from the second lubricant with lubricant 88 The state (limiting the state of leakage) and cable 82 of portion 87e (from front end 87b) leakage are fixed.Specifically, front end 87b It is riveted using fixation member 89 and the part in the outside positioned at the first cover portion 86 of cable 82, thus integrally with cable 82 It is mobile.Here, cable 82 has core components 82c and covers the waterproof envelope 82d of the periphery of core components 82c.Waterproof envelope 82d is for example made of synthetic resin materials such as nylon, PBT.Moreover, being folded with waterproof between front end 87b and core components 82c Envelope 82d.Waterproof envelope 82d can be only arranged at the part that fixation member 89 is provided in cable 82, can spread cable 82 Endlong setting, can also be set to the part that fixation member 89 is provided in cable 82 and the second cover portion 87 outside reveal External part is arrived out.Base end part 87a is an example of the first fixed part, and front end 87b is an example of the second fixed part Son.Waterproof envelope 82d is also referred to as resin portion, film portion.
In the second cover portion 87 of above structure, pars contractilis 87c is moved with cable 82 relative to the opposite of the first cover portion 86 It moves and stretches.
Then, the fixture construction of cable guiding device 85 is described in detail.As shown in figure 14, in cable guiding device 85 In, the first cover portion 86 is fixed on bottom plate 6 by weld part 90,91.First cover portion 86 by cable 82 extending direction each other Bottom plate 6 is fixed at separate two positions (weld part 90,91).In addition, the first cover portion 86 can also pass through prolonging in cable 82 Bottom plate 6 is fixed at the position for stretching three positions of direction away from each other or more.Weld part 90,91 is cable guiding device fixed part An example.
As shown in figure 15, weld part 90 is between the edge of the opening portion 6d of the base end part 86a and bottom plate 6 of the first cover portion 86 Mode between (the face 6a of bottom plate 6) is arranged.Only in base end part 86a around the whole of cable 82 (around the central axis of the first cover portion 86) The a part in week is fixed on bottom plate 6 by weld part 90.
In addition, as shown in Figure 14, Figure 16, before two weld parts 91 are configured in base end part 86a and front end 86b End 86b.First cover portion 86 is fixed on the protrusion 6e being arranged in bottom plate 6 by two weld parts 91.Two weld parts 91 are around Cable 82 in one cover portion 86 and mode away from each other is arranged.
As can be observed from the foregoing, in the present embodiment, the first cover portion 86 (cable guiding device 85) is solid by weld part 90,91 Due to bottom plate 6, weld part 90,91 is and fixed part that is, fixing piece that shell 110 (driving mechanism 100) is fixed on to bottom plate 6 115 different fixed parts.That is, cable guiding device 85 is fixed with driving mechanism 100 by mutually different fixed part.
In addition, as shown in figure 5, the base end part 86a of the first cover portion 86 be inserted in shell 110 cylindrical portion 112 setting In second hole portion 113b.The seal member 116 of annular is folded between cylindrical portion 112 and base end part 86a.That is, being folded in The seal member 116 of annular between one cover portion 86 and shell 110 enters the second hole portion 113b.Seal member 116 be, for example, by The o-ring etc. that elastomer is constituted.Seal member 116 enters the recess portion 113e being arranged in shell 110.Recess portion 113e is constructed around The annular of base end part 86a.Seal member 116 will seal between shell 110 and the first cover portion 86.
In above structure, the end by 100 side of driving mechanism of cable guiding device 85 is opened into shell 110, line The end-enclosed by 3 side of brake-shoe of cable guiding device 85.
More than, as described, in the present embodiment, cable guiding device 85 has the first cover portion 86 of closed section With the second cover portion 87 of closed section, moisten in the first lubricant incorporating section 86i of the first cover portion 86 and the second of the second cover portion 87 Lubrication prescription incorporating section 87e is accommodated with lubricant 88.In addition, the second cover portion 87 has:Base end part 87a (the first fixed part), with profit Lubrication prescription 88 is not fixed from the first lubricant incorporating section 86i and the second lubricant incorporating section 87e state leaked and the first cover portion 86; With front end 87b (the second fixed part), do not let out from the second lubricant incorporating section 87e far from the first cover portion 86 and with lubricant 88 The state and cable 82 of leakage are fixed, and the second cover portion 87 is stretched with cable 82 relative to the relative movement of the first cover portion 86.By This, for example, easily inhibiting the abrasion of cable guiding device 85, cable 82 using the lubricant 88 in cable guiding device 85.In addition, due to The generation of rust, abrasion powder in cable guiding device 85, rust, abrasion powder are pressed down externally to being mixed into cable guiding device 85 System, therefore easily improve the stabilisation of the drive efficiency of driving mechanism 100, durability.Thus, for example, being based on driving current value Under the mode for controlling the driving condition of driving mechanism 100 (motor 120), driving current value is easily inhibited to become abnormal.
In addition, in the present embodiment, for example, the first cover portion 86 the both ends of the extending direction of first cover portion 86 also That is there are two pars convoluta 86e1,86e2 for tool between base end part 86a and front end 86b.As a result, for example, being arranged in the first cover portion 86 The case where having a pars convoluta, is compared, and the power dispersion applied to the sliding part of the first cover portion 86 slided relative to cable 82 is easily made, Therefore the durability of the first cover portion 86, cable 82 is easily improved.In addition, in the setting of the first cover portion 86, there are three above pars convolutas Situation is compared, it is easier to manufacture the first cover portion 86.In addition, being easy to improve compared with the case where making the first 86 integrally bending of cover portion The dimensional accuracy of first cover portion 86.
In addition, in the present embodiment, the first cover portion 86 by the extending direction of cable 82 away from each other at least Two positions (weld part 90,91) are fixed on bottom plate 6 (bearing part).As a result, for example, easily improving the fixation of cable guiding device 85 The rigidity of intensity and bottom plate 6.In addition, in the present embodiment, the first cover portion 86 is fixed on the (branch of bottom plate 6 by weld part 90,91 Bearing portion part), therefore easily further increase the fixing intensity of cable guiding device 85 and the rigidity of bottom plate 6.
In addition, in the present embodiment, be folded in the seal member 116 of the annular between base end part 86a and shell 110 into Enter the recess portion 113e of shell 110.As a result, for example and between driving mechanism 100 and bottom plate 6 and bottom plate 6 and cable guiding device The mode of sandwiched seal member is compared respectively between 85, easily simplifies seal construction.
In addition, in the present embodiment, base end part 86a is made of metal material, only one in the complete cycle of cable 82 Divide and bottom plate 6 is fixed on by weld part 90.As a result, compared with the case where welding the complete cycle of base end part 86a, when can shorten welding Between.
In addition, in the present embodiment, cable 82 has core components 82c and waterproof envelope 82d, wherein waterproof envelope 82d The periphery of core components 82c is covered, and is folded between core components 82c and base end part 87a.Thus, it is suppressed that due to capillary phenomenon Sucking of the caused water from the outside of the second cover portion 87 internally.
In addition, in the present embodiment, the internal diameter of the first cover portion 86 is can be logical for being set to the engaging part 84 of cable 8 The size crossed.As a result, for example, in the dismounting of driving mechanism 100, engaging part 84 can be made by the first cover portion 86, therefore Easily carry out the dismounting of driving mechanism 100.
In addition, in the present embodiment, show in the only base end part 86a of the first cover portion 86 in the complete cycle of cable 82 A part the example of bottom plate 6 is fixed on by weld part 90, but it is not limited to this.Can also in base end part 86a around cable 82 complete cycle is fixed on bottom plate 6 by weld part 90.In this case, for example, can ensure the first cover portion 86 fixing intensity and Leakproofness between bottom plate 6 and the first cover portion 86.In addition, the fixation of the first cover portion 86 and the second cover portion 87 be not limited to it is above-mentioned Structure.For example, it can be the base end part 87a of the second cover portion 87 be inserted in the first cover portion 86 front end 86b and the knot of fixation Structure.
(second embodiment)
Present embodiment shown in Figure 17, Figure 18 is relative to first embodiment, mainly in the structure of cable guiding device 85 And it is different in terms of fixture construction.
As shown in figure 17, cable guiding device 85 is also equipped with bracket 95 in addition to having the first cover portion 86 and the second cover portion 87. Bracket 95 is fixed on the periphery of the base end part 86a of the first cover portion 86.Bracket 95 has fixed part 95a, fixed part 95a and first The connection of cover portion 86 is simultaneously stretched out to the outside of the first cover portion 86.As shown in figure 18, fixed part 95a is fixed on bottom by fixing piece 115 Plate 6 and shell 110.That is, in the present embodiment, cable guiding device 85 and driving mechanism 100 by same fixing piece 115 (Gu Determine portion) it is anchored on bottom plate 6 jointly.In addition, in the present embodiment, being not provided with weld part 90,91.In the present embodiment, Fixing piece 115 is an example for sharing fixed part.
In above structure, for example, due to cable guiding device 85 and driving mechanism 100 by same fixing piece 115 (Gu Determine portion) it is fixed on bottom plate 6, therefore easily simplify the structure of brake gear 2.In addition, being able to carry out cable guiding device 85, driving machine The dismounting and replacement operation raising of structure 100.
(third embodiment)
Present embodiment shown in Figure 19 is relative to first embodiment mainly in the fixture construction side of cable guiding device 85 Face is different.In the present embodiment, cable guiding device 85 is fixed on bottom plate 6 by plate 96.Plate 96 is fixed on convex together with plate 97 Portion 6e.Specifically, plate 96 is fixed on protrusion 6e with the state being sandwiched between protrusion 6e and plate 97.Plate 96 is guided towards cable First cover portion 86 of device 85 extends, and the end (front end) by 86 side of the first cover portion of plate 96 is fixed on first by weld part 91 The front end 86b of cover portion 86.In addition, in the present embodiment, the base end part 86a of the first cover portion 86 passes through 91 (reference of weld part Figure 15) it is fixed on bottom plate 6.That is, the first cover portion 86 at least the both ends of the extending direction of the first cover portion 86 (base end part 86a, Front end 86b) it is fixed on bottom plate 6.In addition, the first cover portion 86 is in addition to base end part 86a and front end 86b, other parts can also To be fixed on bottom plate 6.
In above structure, weld part 91 will extend plate 96 that the first cover portion of direction 86 outstanding extends from protrusion 6e Front end and the first cover portion 86 are fixed.As a result, compared with the case where the first cover portion 86 is directly welded in protrusion 6e, easily welded Connect operation.
(the 4th embodiment)
Present embodiment shown in Figure 20 is relative to first embodiment, mainly in the first cover portion 86 of cable guiding device 85 Vpg connection it is different.In the present embodiment, the small diameter portion 86h2 of the first cover portion 86, which is spread, is endlong configured to bending.It is small Diameter portion 86h2 is an example of the bending section being arranged between base end part 86a and front end 86b.In addition, the first cover portion 86 Bending can be endlong configured to throughout it.In this case, if the outer diameter of the first cover portion 86 spreads endlong constant, Then easily the first cover portion 86 is bent.
In above structure, such as compared in the case where small diameter portion 86h2 is provided with straight part, easily dispersion is to the The power that the sliding part slided relative to cable 82 in one cover portion 86 applies.
(the 5th embodiment)
Present embodiment shown in Figure 21~Figure 24 is relative to first embodiment, mainly in the structure of cable guiding device 85 Aspect is different.As shown in Figure 21, Figure 22, the cable guiding device 85 of present embodiment except the first cover portion 86 and the second cover portion 87 ( It is not shown in Figure 21, Figure 22) other than, also there is metal parts 98.In addition, in the present embodiment, as shown in figure 23, the first cover Portion 86 is made of synthetic resin materials such as nylon, PBT.In addition, being provided with the recess portion of annular in the front end 86b of the first cover portion 86 86p, by being embedded in the protrusion (not shown) of the second cover portion 87, thus 87 quilt of the first cover portion 86 and the second cover portion to recess portion 86p It is fixed to each other.In addition, the shape of front end 86b can also be identical with first embodiment.
As shown in figure 24, metal parts 98 has supporting part 98a and fixed part 98b.Metal parts 98 for example can by with The identical metal material of bottom plate 6 is constituted.
As shown in figure 21, supporting part 98a is configured to that section is substantially u-shaped, and extends along the periphery of the first cover portion 86.Branch Bearing portion 98a is to cover first cover portion of state support 86 of a part of the periphery of the first cover portion 86.First cover portion 86 is embedded in Supporting part 98a.Recess portion 98c is provided between the both ends of the extending direction of supporting part 98a.Utilize recess portion 98c, supporting part 98a Become easily-deformable, deforms supporting part 98a in such a way that supporting part 98a clamps the first cover portion 86.
Fixed part 98b extends from the end by 6 side of bottom plate of supporting part 98a towards the outside of the first cover portion 86.Fixed part 98b is configured to the plate along bottom plate 6, and is fixed on bottom plate 6.Fixed part 98b is provided with through hole 98d.Fixed part 98b both may be used It, can also benefit to be fixed on bottom plate 6 and shell 110 using the fixing piece 115 (in Figure 21 not shown) for being inserted in through hole 98d It is fixed with weld part (not shown) and 6 phase of bottom plate.
In addition, as shown in figure 21, the face Chong Die with bottom plate 6 of supporting part 98a and the first cover portion 86 relative to fixed part 98b 98b1 obliquely extends.
In above structure, since the first cover portion 86 is made of synthetic resin material, easily make cable guiding device 85 Lightweight.
In addition, in the present embodiment, supporting part 98a and the first cover portion 86 are relative to the Chong Die with bottom plate 6 of fixed part 98b Face 98b1 obliquely extend.As a result, for example under the mode for making cable 82 relative to wheel axle inclination be inserted through bottom plate 6, It can will be used to make bottom plate 6, bearing cable guiding device 85 face 98b1 the inclined bending machining amount (angle) of face 6a to become smaller Or it disappears.
(sixth embodiment)
Present embodiment shown in Figure 25 is relative to first embodiment mainly in the first cover portion 86 of cable guiding device 85 Vpg connection it is different.
First cover portion 86 of present embodiment is provided with diameter change portion 86q.The outer diameter of diameter change portion 86q with from The side base end part 86a becomes smaller towards the front end side 86b.In diameter change portion, 86q is disposed an outwardly facing the face 86r of bottom plate 6.Face 86r It is Chong Die with bottom plate 6.In face, 86r is through with through hole 86c.The center 86ca of through hole 86c in the 86r of face is relative to face 86r's Center 86ra is eccentric.As an example, the center 86ca of through hole 86c with the curved outside than the first cover portion 86 closer to The mode of inside is eccentric.In addition, the center 86ca of through hole 86c can also be than the curved inside of the first cover portion 86 closer to outer The mode of side is eccentric.In this configuration, as an example, it can be ensured that the eccentric side phase with the center 86ca of through hole 86c The area of the face 86r of anti-side is larger.It as a result, more can be in the eccentric side opposite side of the center 86ca with through hole 86c Face 86r bears load.
(the 7th embodiment)
Present embodiment shown in Figure 26 is relative to first embodiment mainly in the first cover portion 86 of cable guiding device 85 Vpg connection it is different.
First cover portion 86 of present embodiment has large-diameter portion 86s and small diameter portion 86t.Large-diameter portion 86s is from base end part 86a court Forward end 86b extends.Large-diameter portion 86s is fixed on bottom plate 6.In addition, small diameter portion 86t prolongs from large-diameter portion 86s towards front end 86b It stretches.The outer diameter of small diameter portion 86t is smaller than the outer diameter of large-diameter portion 86s.In addition, the diameter of through hole 86c is in large-diameter portion 86s and small diameter portion Constant in 86t.In this configuration, for example, wall thickness due to easily thickening large-diameter portion 86s, easily passes through large-diameter portion 86s It is securely fixed to be fixed on bottom plate 6.
In addition it is also possible to by multiple elements in above-mentioned multiple embodiments in the range of can technically realize It is combined.
About above-mentioned embodiment, note content is disclosed.
Vehicle brake have above-mentioned cable guiding device, above-mentioned brake component, above-mentioned driving mechanism, above-mentioned cable, with And bearing part.
Above-mentioned first cover portion has the curved bending section between the both ends of first cover portion.
Above-mentioned cable guide tool has the face Chong Die with the face of above-mentioned bearing part for fixed part, fixation portions, on Fixed part is stated to connect with above-mentioned first cover portion and stretch out to the outside of above-mentioned first cover portion,
Above-mentioned first cover portion obliquely extends relative to the face of fixation portions.
Above-mentioned first cover portion is provided with the first through hole, the both ends of first through hole across first cover portion and including Above-mentioned first lubricant incorporating section,
Above-mentioned cable guiding device has face Chong Die with above-mentioned bearing part and for the perforation of above-mentioned through hole,
Above-mentioned through hole in above-mentioned face is eccentric relative to the center in above-mentioned face.
Above-mentioned first cover portion is fixed on described by extending direction at least two positions away from each other in above-mentioned cable Bearing part.
Above-mentioned driving mechanism has the shell for being provided with recess portion,
The seal member for being folded in the annular between the base end part and above-mentioned shell of above-mentioned first cover portion enters above-mentioned recess portion.
Above-mentioned first cover portion is made of metal material, and the ring for surrounding the peripheral part will be utilized around the peripheral part of above-mentioned cable The weld part of shape is fixed on above-mentioned bearing part.
Above-mentioned first cover portion is made of metal material, and only a part circumferentially around the peripheral part of above-mentioned cable passes through weldering Socket part is fixed on above-mentioned bearing part.
Above-mentioned driving mechanism has shell,
Above-mentioned cable guiding device has fixed part, and fixation portions connect with above-mentioned first cover portion and to above-mentioned first cover portion Outside stretch out,
Fixation portions is fixed on above-mentioned shell using fixing piece.
Above-mentioned cable guiding device has metal parts, and above-mentioned metal parts supports above-mentioned first cover portion, and is fixed on above-mentioned Bearing part,
Above-mentioned first cover portion is made of synthetic resin material.
Above-mentioned cable has core components and waterproof envelope, which covers the periphery of above-mentioned core components, and is folded in Between above-mentioned core components and above-mentioned second fixed part.
More than, instantiate embodiments of the present invention, but an above embodiment only example, it is not intended to limit Determine the scope of the present invention.Above embodiment can be implemented by various other ways, in the range for the purport for not departing from invention It is interior, it is able to carry out various omissions, displacement, combination and change.In addition, each structure, shape etc. specification (construction, type, direction, Shape, size, length, width, thickness, height, quantity, configuration, position, material etc.) it can be suitably changed and implemented.
For example, in the above-described embodiment, brake gear 2 is configured to neck from formula drum brake, but the present invention also can It is configured to the brake gear of other forms.
Description of symbols
1 ... wheel;2 ... brake gears (vehicle brake);3 ... brake-shoes (brake component);(the bearing of 6 ... bottom plates Component);82 ... cables;85 ... cable guiding devices;86 ... first cover portions;86e1,86e2 ... pars convoluta;The first lubricant of 86i ... is received Receive portion;87 ... second cover portions;The second lubricant of 87e ... incorporating section;88 ... lubricants;110 ... shells.

Claims (8)

1. a kind of cable guiding device is stored and guides cable, the cable is folded between brake component and driving mechanism, and The brake component is drawn, by the power of the driving mechanism to brake to wheel, wherein
The cable guide tool is standby:
First cover portion, consists of closed section, is extended along the cable and with covering the state of the cable by the line Cable guidance is configured to store the first lubricant incorporating section of lubricant between the cable for that can slide;With
Second cover portion, consists of closed section, is extended with covering the state of the cable along the cable, and constitutes second Lubricant incorporating section, second lubricant incorporating section are connected with first lubricant incorporating section, and can with the line Lubricant is stored between cable, second cover portion has the first fixed part and the second fixed part, and first fixed part is to lubricate Agent is not fixed from the state that first lubricant incorporating section and second lubricant incorporating section leak with first cover portion, Second fixed part far from first cover portion and with lubricant not from second lubricant incorporating section leak state with The cable is fixed, and second cover portion is stretched with the cable relative to the relative movement of first cover portion.
2. cable guiding device according to claim 1, wherein
There are two pars convolutas for tool between the both ends of extending direction of first cover portion in first cover portion.
3. cable guiding device according to claim 1 or 2, wherein
First cover portion is made of non-telescoping component,
Second cover portion is made of the flexible extensible member of the extending direction along the cable.
4. cable guiding device described according to claim 1~any one of 3, wherein
The driving mechanism is fixed on bearing part,
First cover portion is at least fixed on the bearing part at the both ends of the extending direction of first cover portion.
5. cable guiding device described according to claim 1~any one of 4, wherein
The driving mechanism has the shell for being provided with hole portion,
First cover portion enters the hole portion,
The seal member for being folded in the annular between first cover portion and the shell enters the hole portion.
6. cable guiding device described according to claim 1~any one of 5, wherein
Having fixed part, the fixed part connect with first cover portion and stretches out to the outside of first cover portion,
The driving mechanism is fixed on bearing part,
The fixed part has the face Chong Die with the face of the bearing part,
First cover portion obliquely extends relative to the face of the fixed part.
7. one kind brake, wherein have:
Cable guiding device described in any one of claim 1~6;
The brake component;
The driving mechanism;
The cable;
Bearing part fixes the driving mechanism;
The driving mechanism is fixed on the bearing part by driving mechanism fixed part;And
The cable guiding device is fixed on institute by the cable guiding device fixed part different from the driving mechanism fixed part State bearing part.
8. a kind of vehicle brake, wherein have:
Cable guiding device described in any one of claim 1~6;
The brake component;
The driving mechanism;
The cable;
Bearing part fixes the driving mechanism;And
Fixed part is shared, the cable guiding device and the driving mechanism are fixed on the bearing part.
CN201780019945.XA 2016-03-31 2017-03-15 Cable guide and vehicle brake Active CN108884890B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2016072836A JP6537468B2 (en) 2016-03-31 2016-03-31 Vehicle brake
JP2016-072836 2016-03-31
PCT/JP2017/010536 WO2017169815A1 (en) 2016-03-31 2017-03-15 Cable guide, and brake for vehicle

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CN108884890B CN108884890B (en) 2020-10-23

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DE (1) DE112017001664B4 (en)
WO (1) WO2017169815A1 (en)

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CN114127435A (en) * 2019-07-10 2022-03-01 日立安斯泰莫株式会社 Drum brake for vehicle

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Publication number Publication date
CN108884890B (en) 2020-10-23
DE112017001664T5 (en) 2018-12-13
WO2017169815A1 (en) 2017-10-05
DE112017001664T8 (en) 2019-03-28
JP6537468B2 (en) 2019-07-03
JP2017180789A (en) 2017-10-05
DE112017001664B4 (en) 2022-11-24

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