CN105480215A - Hand brake for vehicle, and fork truck - Google Patents
Hand brake for vehicle, and fork truck Download PDFInfo
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- CN105480215A CN105480215A CN201410475288.8A CN201410475288A CN105480215A CN 105480215 A CN105480215 A CN 105480215A CN 201410475288 A CN201410475288 A CN 201410475288A CN 105480215 A CN105480215 A CN 105480215A
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- handle
- ratchet
- push rod
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Abstract
The invention discloses a hand brake for a vehicle, and a fork truck. The hand brake for the vehicle comprises a supporting seat, a handle seat, a handle, a pawl, a push rod assembly and a return device, wherein the supporting seat is provided with a ratchet; the handle seat is rotatably arranged on the supporting seat and is provided with a clamping block; the handle is rotatably arranged on the handle seat; when the handle rotates towards to the clamping block and is matched with the clamping block, the handle drives the handle seat to rotate; the pawl is rotatably arranged on the handle seat and is suitable for being meshed with the ratchet; the push rod assembly is connected to the handle and comprises a push rod capable of moving between a locking position and an unlocking position, wherein in the unlocking position, the push rod enables the meshed pawl and ratchet to be separated, and in the locking position, the push rod enables the pawl and the ratchet to be meshed; and the return device is connected with the handle and the supporting seat. According to the hand brake for the vehicle, disclosed by the invention, the space occupation of the handle is reduced, and the driving experience is improved; and the length and rotation angle of the handle can be increased conveniently, thereby meeting the requirements of a large dragline stroke and a large lever ratio.
Description
Technical field
The present invention relates to vehicular field, especially relate to a kind of parking brake for vehicle and fork truck.
Background technology
The fork truck parking brake of existing employing ratchet device, its principle is that handle is connected with drag-line, and the rotation of handle drives cable movement.Handle is hinged with ratchet, and when ratchet coordinates with fixing ratchet, handle can be made to stop drag, and namely handle is by locking, thus position when making drag-line remain on handle stopping; When needs come loose parking brake time, ratchet can be made to depart from ratchet by the unblock push rod on lower handle and coordinate, handle is return under the pulling force of drag-line.
When the fork truck parking brake of this employing ratchet device is arranged on front apron, when parking brake handle after parking brake pull-up is positioned at towards the position of chaufeur, handle occupies drives space in a large number, affects chaufeur and gets on or off the bus.Drive space in a large number because handle can take, therefore in the prior art, it is shorter that the length of handle is done usually, in drag-line stroke one timing, and the shorter lever ratio limiting mechanism of handle.And when drag-line needs large stroke to need large lever ratio time, this structure just can not satisfy the demands simultaneously.
Summary of the invention
The present invention is intended at least solve the technical matters existed in prior art.For this reason, one object of the present invention is to provide a kind of parking brake for vehicle, this parking brake can make handle taking up room when initial condition and parked state less, and take up room when initial condition and parked state little due to parking brake, therefore the length of handle can suitably increase, with the demand of the large drag-line stroke and big lever ratio that meet Some vehicles.
Another object of the present invention is to provide a kind of fork truck with the above-mentioned parking brake for vehicle.
According to the parking brake for vehicle of the embodiment of the present invention, comprising: bearing, the outside face of described bearing is provided with multiple ratchet, handle set, described handle set is located on described bearing by the first rotating shaft rotationally, and described handle set is provided with fixture block, handle, the first end of described handle is located on described handle set by the second rotating shaft rotationally, and described handle is towards described fixture block rotation and when coordinating with described fixture block, described handle drives described handle set to rotate, ratchet, described ratchet is located on described handle set rotationally, and the first end of described ratchet is suitable for and described ratchet engagement, push-rod assembly, described push-rod assembly is connected to described handle, described push-rod assembly is included in moveable push rod between lock position and unlocked position, when described unlocked position the first end of described push rod with described click-fit and the described first end promoting described ratchet rotate towards the direction away from described bearing and engage to make described ratchet and described ratchet depart from, the described first end of described push rod and described click-fit when described lock position and make the described first end of described ratchet rotate to make described ratchet and described ratchet engagement towards the direction of described bearing, returning device, described returning device is connected with described handle, and described returning device is connected with described bearing often to drive the second end of described handle to rotate towards the direction away from described fixture block.
According to the parking brake for vehicle of the embodiment of the present invention, make parking brake under initial condition and parked state, handle all can rest on same object, thus reduces handle taking up room under initial condition and parked state, improves driving experience.Due to handle under initial condition and parked state taking drive space less, therefore suitably can increase length and the rotational angle of handle, and then meet the large drag-line stroke of Some vehicles and the demand of big lever ratio, make parking brake use more laborsaving.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 be according to the parking brake pull-up of the embodiment of the present invention before the structural representation of initial condition;
Fig. 2 be parking brake pull-up according to the embodiment of the present invention and handle does not unclamp time structural representation;
Fig. 3 be parking brake pull-up according to the embodiment of the present invention and handle unclamp after structural representation;
Fig. 4 is the side-looking structural representation of the parking brake according to the embodiment of the present invention.
Reference numeral:
Parking brake 100,
Bearing 1, ratchet 10, fixed body 11, baffle plate 12, cambered surface section 13,
First rotating shaft 21, second rotating shaft 22, the 3rd rotating shaft 23,
Handle set 3, fixture block 31, binding face 311, first plate body 32, second plate body 33, reel 34,
The first end 4f of handle 4, handle, the second end 4s of handle, chamber 40,
Second end 7s of the first end 7f of ratchet 7, ratchet, monodentate 71, ratchet,
The first end 81f of push-rod assembly 8, push rod 81, push rod, the second end 81s of push rod, button 811, push rod pull back spring 82, returning device 9,
Drag-line 5, threaded fasteners 51,
Front apron 200.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " length ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " cw ", " conter clockwise ", " axis " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, unless otherwise clearly defined and limited, term " is connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, particular case above-mentioned term concrete meaning in the present invention can be understood.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
Below with reference to Fig. 1-Fig. 4, the parking brake 100 for vehicle according to the embodiment of the present invention is described.
According to the parking brake 100 for vehicle of the embodiment of the present invention, as shown in Figure 1-Figure 3, comprising: bearing 1, handle set 3, handle 4, ratchet 7, push-rod assembly 8 and returning device 9.
With reference to Fig. 1, the outside face of bearing 1 is provided with multiple ratchet 10, and handle set 3 is located on bearing 1 by the first rotating shaft 21 rotationally, and handle set 3 is provided with fixture block 31.The first end 4f of handle 4 is located on handle set 3 by the second rotating shaft 22 rotationally, and when handle 4 rotates towards fixture block 31 and coordinates with fixture block 31, handle 4 drives handle set 3 to rotate.
As in the example shown in Fig. 1 and Fig. 2, on cw M direction, fixture block 31 is positioned at the downstream of the second rotating shaft 22.When handle 4 does not coordinate with fixture block 31, handle 4 freely can rotate around the second rotating shaft 22.When handle 4 to be only against on fixture block 31 and to rotate along cw M direction, handle 4 drives handle set 3 to rotate along cw M direction around the first rotating shaft 21 by fixture block 31, and namely handle 4 opposite handle seat 3 is quiescence.
In examples more of the present invention, as shown in Figure 1-Figure 3, bearing 1 comprises fixed body 11 and baffle plate 12, ratchet 10 is located on the outside face of fixed body 11, handle set 3 is located on fixed body 11 rotationally, baffle plate 12 to be located on fixed body 11 and to extend towards handle 4, and baffle plate 12 is suitable for the rotational angle contacting to limit handle 4 when handle 4 rotates towards the direction away from fixture block 31 with handle 4.Thus, reduce the activity space of handle 4, and when handle 4 rotates towards the direction away from fixture block 31, handle 4 finally will rest on baffle plate 12, thus ensure that handle 4 is stopped steadily, the stop position of handle 4 is unique.Wherein, the periphery wall towards handle 4 of fixed body 11 is formed as the cambered surface protruded towards the direction of handle 4, ratchet 10 is located at the middle position of this cambered surface, namely fixed body 11 towards on the periphery wall of handle 4, intermediate portion is divided into ratchet 10, and the two side portions being positioned at ratchet 10 of this periphery wall is cambered surface section 13.
Alternatively, as shown in Figure 4, handle set 3 comprises the first plate body 32 and the second plate body 33, first plate body 32 and the second plate body 33 interval are arranged, bearing 1 be positioned at the first plate body 32 and the second plate body 33 at least partially, that is, bearing 1 be clamped between the first plate body 32 and the second plate body 33 at least partially, thus make handle set 3 large with the area of contact of bearing 1, and then ensure handle set 3 and bearing 1 stressed more evenly, not fragile, and handle set 3 stability of rotation.
With reference to Fig. 1-Fig. 3, ratchet 7 is located on handle set 3 rotationally, and the first end 7f of ratchet 7 is suitable for engaging with ratchet 10.Particularly, ratchet 7 is located on handle set 3 by the 3rd rotating shaft 23 rotationally, and the first end 7f of ratchet 7 is formed as monodentate 71, and certainly, the first end 7f of ratchet 7 also can be formed as multiple tooth, as long as the first end 7f of ratchet 7 can engage with the ratchet 10 on bearing 1.
Push-rod assembly 8 is connected to handle 4, and push-rod assembly 8 is included in moveable push rod 81 between lock position and unlocked position.When unlocked position, the first end 81f of push rod 81 coordinates with ratchet 7 and the first end 7f promoting ratchet 7 rotates towards the direction away from bearing 1, departs from engagement to make ratchet 7 and ratchet 10.When lock position, the first end 81f of push rod 81 coordinates with ratchet 7 and the first end 7f of ratchet 7 is rotated towards the direction of bearing 1, engages with ratchet 10 to make ratchet 7.
Here, handle 4 is located in the operator's compartment of vehicle usually, and because push-rod assembly 8 is connected to handle 4, and the first end 81f of push rod 81 coordinates with ratchet 7, and therefore chaufeur controls the rotation of ratchet 7 by the movement controlling push rod 81.Wherein, when push rod 81 moves to unlocked position, owing to promoting to make ratchet 7 and ratchet 10 depart from engagement, therefore handle set 3 freely can rotate around the first rotating shaft 21, and namely handle set 3 is in released state.When push rod 81 moves to lock position, due to push rod 81 make ratchet 7 and ratchet 10 engageable, therefore ratchet 7 forms ratchet device with the bearing 1 of band ratchet 10, and ratchet 7 can one way engagement ratchet 10.As in the example of Fig. 1-Fig. 3, after ratchet 7 engages with ratchet 10, ratchet 7 only can rotate along cw M direction around the first rotating shaft 21 with handle set 3.
Alternatively, as shown in Figure 1-Figure 3, push-rod assembly 8 also comprises push rod pull back spring 82, push rod pull back spring 82 is connected between handle 4 and push rod 81 often to drive push rod 81 to move towards lock position, make after handle 4 to be drawn to the position that ratchet 7 engages with ratchet 10 by chaufeur, push rod 81 is remained on lock position place by push rod pull back spring 82 automatically, avoids push rod 81 to promote ratchet 7 and causes ratchet 7 cannot engage with ratchet 10, thus realize the automatic locking of handle set 3.Certainly, push-rod assembly 8 also can comprise other elastic components to ensure that push rod 81 moves to lock position automatically, does not do concrete restriction here.
Particularly, as shown in Figure 1-Figure 3, push rod 81 be located in handle 4 at least partially movably, the part of stretching out handle 4 of push rod 81 limits button 811, thus facilitate chaufeur to control the movement of push rod 81 by button 811, and then facilitate locking and the unblock of control handle seat 3.As in the example shown in Fig. 1-Fig. 3, handle 4 is long pole, handle 4 has the chamber 40 of the second end 4s being communicated to handle 4 from the first end 4f of handle 4, push rod 81 to be located in chamber 40 and to be formed as the rod member unanimous on the whole with the shape of handle 4, and the second end 81s of push rod 81 stretches out from the second end 4s of handle 4 and forms above-mentioned button 811.Certainly, push rod 81 also can be formed as other shapes, push rod 81 also by bindiny mechanism as connecting rod mechanism etc. is connected with ratchet 7, do not do concrete restriction here, as long as chaufeur controls the rotation of ratchet 7 by push rod 81.More specifically, the second end 7s of ratchet 7 stretches in chamber 40, and the first end 81f of push rod 81 is connected with the second end 7s of ratchet 7.
With reference to Fig. 1-Fig. 3, returning device 9 is connected with handle 4, and returning device 9 is connected with bearing 1 and rotates towards the direction away from fixture block 31 with the second end 4s of normal driving handle 4.Here, " often " refers to normality, represent that there is a trend of often moving towards certain direction, in example as shown in Figure 1-Figure 3, returning device 9 applies a pulling force towards the direction away from fixture block 31 to handle 4 all the time, and this pulling force makes handle 4 have the trend of moving along conter clockwise N direction.Alternatively, returning device 9 is handle pull back spring, and handle pull back spring is connected between baffle plate 12 and handle 4, and thus, returning device 9 structure is simple, with low cost, installs easily.
It should be noted that, parking brake 100 also comprises drag-line 5, and one end of drag-line 5 is connected with handle set 3 and the other end is suitable for the brake system being connected vehicle.Handle set 3 also comprises reel 34, reel 34 is located on the first plate body 32 or the second plate body 33, the portion perimeter wall of reel 34 is formed as the arcwall face arranged around the first rotating shaft 21, one end of drag-line 5 is fixed on handle set 3 by threaded fasteners 51, and drag-line 5 is wound on the periphery wall of reel 34.Here, the concrete structure of drag-line 5, the structure of brake system, drag-line 5 and the connection mode etc. of brake system all can adopt the structure of corresponding component in prior art, are not described in detail here.
The principle of work of the parking brake 100 being used for vehicle is described below with reference to Fig. 1-Fig. 3.
Fig. 1 is the initial condition before parking brake 100 pull-up, and wherein, ratchet 7 is positioned at cambered surface section 13 place of fixed body 11, and the brake system of vehicle pulls drag-line 5, and handle set 3 rotates along conter clockwise N direction under the pulling of drag-line 5, and handle 4 is rested on baffle plate 12.
When handle 4 is rotated along cw M direction by initial condition by chaufeur, as shown in Figure 2, handle 4 drives handle set 3 to rotate along cw M direction by fixture block 31, and ratchet 7 moves to ratchet 10 by the smooth section 13 of bearing 1.Under the promotion of push rod pull back spring 82, push rod 81 remains on lock position place, and therefore ratchet 7 engages with ratchet 10, and handle set 3 is locked in the position that ratchet 7 engages with ratchet 10.
Shown in Fig. 1 and Fig. 2, when handle set 3 rotates along cw M direction, handle set 3 pulls drag-line 5 to make drag-line 5 coiling on spool 34, after drag-line 5 is pulled, and brake system vehicle.Thus, the rotation of handle set 3 and locking achieve pulling and maintenance of drag-line 5, thus realize the parking of vehicle.
When chaufeur as shown in Figure 2 state release handle 4 hand time, as shown in Figure 3, because handle set 3 is by ratchet 7 locking, therefore handle 4 is pulled by returning device 9 and rotates around the second rotating shaft 22, handle 4 along conter clockwise N direction rotate until handle 4 rests on baffle plate 12.
When vehicle needs to unclamp parking brake 100, chaufeur can button press 811, and make push rod 81 move to unlocked position by lock position, the first end 7f that push rod 81 promotes ratchet 7 rotates towards the direction away from bearing 1, and ratchet 7 departs from ratchet 10 and engages.Afterwards, handle set 3 rotates along conter clockwise N direction under the pulling of drag-line 5, and ratchet 7 moves to smooth section 13 place of bearing 1, and handle set 3 is with fixed handle 4 to rotate along conter clockwise N direction, until handle 4 rests on baffle plate 12 by fixture block 31.That is, parking brake 100 returns back to the initial condition shown in Fig. 1.
To sum up, as shown in figures 1 and 3, parking brake 100 is under initial condition and parked state, and handle 4 all rests on baffle plate 12, and the driving space that handle 4 takies under initial condition and parked state is little.
And in vehicle set, when parking brake 100 pull-up, handle 4 rotates towards the direction of chaufeur usually.Under parking brake 100 is in parked state, rest on baffle plate 12 because handle 4 returns back to, make handle 4 can not affect the activity of chaufeur, thus facilitate chaufeur to get on or off the bus, improve driving experience.
Due to handle 4 take under initial condition and parked state drive space little, therefore under the prerequisite not affecting handle 4 use, the length of handle 4 can suitably increase, thus increases the lever ratio of parking brake 100, more laborsaving when making chaufeur that handle 4 is drawn to parked state from initial condition.
And the space that in the process being pulled to parked state at initial condition, handle 4 takies can be unrestricted, therefore the rotation amplitude of handle 4 also can suitably increase, thus increases the stroke of drag-line 5.
According to the parking brake 100 for vehicle of the embodiment of the present invention, by handle 4 is located on handle set 3 rotationally, and handle 4 is provided with returning device 9, make parking brake 100 under initial condition and parked state, handle 4 all can rest on same object, thus reduce handle 4 taking up room under initial condition and parked state, improve driving experience.Due to handle 4 under initial condition and parked state taking drive space less, therefore suitably can increase length and the rotational angle of handle 4, and then meet the large drag-line stroke of Some vehicles and the demand of big lever ratio, parking brake 100 be used more laborsaving.
In some embodiments of the invention, the perisporium of the second end 7s of ratchet 7 inwardly concaves and forms shrinkage pool (scheming not shown), and the first end 81f of push rod 81 extend in shrinkage pool.
When push rod 81 is moved towards unlocked position by lock position, on the internal perisporium that the first end 81f of push rod 81 is only against shrinkage pool and the second end 7s promoting ratchet 7 rotate towards the direction of bearing 1.Namely in the example shown in Fig. 1-Fig. 3, push rod 81 promotes ratchet 7 and rotates along cw M direction around the 3rd rotating shaft 23, and the first end 7f of ratchet 7 is rotated towards the direction away from bearing 1, thus makes ratchet 7 and ratchet 10 depart from engagement.And when push rod 81 is moved towards lock position by unlocked position, ratchet 7 rotates along inverse time value N direction around the 3rd rotating shaft 23 under self gravitation effect, the first end 7f of ratchet 7 is rotated towards the direction of bearing 1 automatically, thus ratchet 7 can engage with ratchet 10.
Here, second end 7s of ratchet 7 arranges shrinkage pool, the first end 81f of push rod 81 coordinates with shrinkage pool, can ensure that chaufeur is by controlling the movement of push rod 81 to control the rotation of ratchet 7, also make ratchet 7 simple with the structure of the connecting bridge of push rod 81, ratchet 7 and push rod 81 easy to manufacture, easy to assembly.
After ratchet 7 engages with the ratchet 10 on bearing 1, handle 4 is pulled by returning device 9 and rotates towards the direction away from fixture block 31, push rod 81 is positioned at lock position and rotates with handle 4 simultaneously, push rod 81 is rotated around the second rotating shaft 22, therefore the center of shrinkage pool can be arranged to be positioned on the rotation centerline of the second rotating shaft 22.Thus, ratchet 7 to engage with ratchet 10 back handle 4 turn round time, the shrinkage pool center rotating of push rod 81 on ratchet 7 and do not promote ratchet 7, thus do not affect coordinating of ratchet 7 and ratchet 10, make that handle 4 rotates and ratchet 7 is motionless, that is, will the self-locking performance of ratchet 7 with ratchet 10 do not affected in the rotation of vehicle parking back handle 4, and then ensure the reliability of vehicle parking.And handle 4 does not affect the unlocking function of push rod 81 in the process of rotating yet, namely handle 4 is in the process of rotating, and chaufeur still can, by lower push-rod 81, make ratchet 7 be separated with ratchet 10, realizes unlocking.
Here, the shape of shrinkage pool can not do concrete restriction, such as shrinkage pool can be the even erose hole of rectangular opening, circular port, spherical pore, concrete restriction is not done in the center of shrinkage pool yet, as long as when ratchet 7 engages with ratchet 10 and push rod 81 is positioned at lock position, in the process that push rod 81 rotates with handle 4, push rod 81 does not promote ratchet 7 around this center rotating.
In examples more of the present invention, when handle 4 coordinates with fixture block 31, handle 4 contacts with fixture block 31.Particularly, as shown in Figure 1-Figure 3, the sidewall towards handle 4 of fixture block 31 forms binding face 311, and when handle 4 coordinates with fixture block 31, the periphery wall of handle 4 is close on binding face 311.Thus, when handle 4 coordinates with fixture block 31, handle 4 is comparatively large with the area of contact of fixture block 31, thus when handle 4 rotates towards fixture block 31, handle 4 can drive handle set 3 to rotate reposefully, and handle 4 or stressed too the concentrating of fixture block 31 can be avoided to cause damaging.
Below with reference to Fig. 1-Fig. 3, the fork truck according to the embodiment of the present invention is described.
According to the fork truck of the embodiment of the present invention, as shown in Figure 1-Figure 3, comprising: front apron 200, brake system (scheming not shown), bearing 1, handle set 3, handle 4, ratchet 7, push rod 81, push rod pull back spring 82, handle pull back spring and drag-line 5.
Wherein, bearing 1 comprises fixed body 11 and baffle plate 12, and fixed body 11 is fixed on front apron 200, and the outside face of fixed body 11 is provided with multiple ratchet 10, and baffle plate 12 is located on fixed body 11.Namely the bearing 1 of ratchet 10 is with to be fixed on the front apron 200 of fork truck.
Handle set 3 is located on fixed body 11 by the first rotating shaft 21 rotationally, and handle set 3 is provided with fixture block 31.The first end 4f of handle 4 is located on handle set 3 by the second rotating shaft 22 rotationally, and when handle 4 rotates towards fixture block 31 and coordinates with fixture block 31, handle 4 drives handle set 3 to rotate.Ratchet 7 is located on handle set 3 rotationally, and the first end 7f of ratchet 7 is suitable for engaging with ratchet 10.
With reference to Fig. 1-Fig. 3, push rod 81 be located in handle 4 at least partially between lock position and unlocked position movably, when unlocked position, the first end 81f of push rod 81 coordinates with ratchet 7 and the first end 7f promoting ratchet 7 rotates towards the direction away from fixed body 11, engagement is departed to make ratchet 7 and ratchet 10, when lock position, the first end 81f of push rod 81 coordinates with ratchet 7 and the first end 7f of ratchet 7 is rotated towards the direction of fixed body 11, engages with ratchet 10 to make ratchet 7.Push rod pull back spring 82 is connected between handle 4 and push rod 81, moves towards lock position often to drive push rod 81.Handle pull back spring is connected between handle 4 and baffle plate 12, rotates towards baffle plate 12 with the second end 4s of normal driving handle 4.One end of drag-line 200 is connected with handle set 3, and the other end of drag-line 200 is connected to brake system.
It should be noted that, the concrete structure of bearing 1, handle set 3, handle 4, ratchet 7 and push rod 81 and movement relation with in above-described embodiment for the corresponding component structure of the parking brake 100 of vehicle and the annexation of corresponding component identical, be not described in detail here.
According to the fork truck of the embodiment of the present invention, chaufeur by the handle 4 of hand brake device towards the pull-up of chaufeur position with parking, chaufeur release handle 4 after hand brake device parking completes, handle 4 turns round to the direction away from chaufeur.Thus, handle 4 present position and handle 4 position when initial condition when parked state is substantially identical, and handle 4 takies under initial condition and parked state that to drive space little.Thus be convenient to rotational angle handle 4 being designed to long handle structure or increase handle 4, and then solve fork truck hand brake device when being arranged on front apron 200, hand brake device cannot realize the problem of large drag-line stroke and big lever ratio simultaneously, takies and drive the large problem in space after also solving parking brake 100 pull-up.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (10)
1. for a parking brake for vehicle, it is characterized in that, comprising:
Bearing, the outside face of described bearing is provided with multiple ratchet;
Handle set, described handle set is located on described bearing by the first rotating shaft rotationally, and described handle set is provided with fixture block;
Handle, the first end of described handle is located on described handle set by the second rotating shaft rotationally, and described handle is towards described fixture block rotation and when coordinating with described fixture block, described handle drives described handle set to rotate;
Ratchet, described ratchet is located on described handle set rotationally, and the first end of described ratchet is suitable for and described ratchet engagement;
Push-rod assembly, described push-rod assembly is connected to described handle, described push-rod assembly is included in moveable push rod between lock position and unlocked position, when described unlocked position the first end of described push rod with described click-fit and the described first end promoting described ratchet rotate towards the direction away from described bearing and engage to make described ratchet and described ratchet depart from, the described first end of described push rod and described click-fit when described lock position and make the described first end of described ratchet rotate to make described ratchet and described ratchet engagement towards the direction of described bearing,
Returning device, described returning device is connected with described handle, and described returning device is connected with described bearing often to drive the second end of described handle to rotate towards the direction away from described fixture block.
2. the parking brake for vehicle according to claim 1, is characterized in that, described returning device is handle pull back spring.
3. the parking brake for vehicle according to claim 1, is characterized in that, the perisporium of the second end of described ratchet inwardly concaves formation shrinkage pool, and the described first end of described push rod extend in described shrinkage pool.
4. the parking brake for vehicle according to claim 3, is characterized in that, on the rotation centerline being centrally located at described second rotating shaft of described shrinkage pool.
5. the parking brake for vehicle according to any one of claim 1-4, it is characterized in that, described push-rod assembly also comprises: push rod pull back spring, and described push rod pull back spring is connected between described handle and described push rod often to drive described push rod to move towards described lock position.
6. the parking brake for vehicle according to any one of claim 1-4, is characterized in that, described push rod be located in described handle at least partially movably, the part of stretching out described handle of described push rod limits button.
7. the parking brake for vehicle according to claim 1, it is characterized in that, described bearing comprises fixed body and baffle plate, described ratchet is located on the outside face of described fixed body, described handle set is located on described fixed body rotationally, described baffle plate to be located on described fixed body and to extend towards described handle, described baffle plate be suitable for when described handle rotates towards the direction away from described fixture block and described handle contact to limit the rotational angle of described handle; Described returning device is connected with described baffle plate.
8. the parking brake for vehicle according to claim 1, it is characterized in that, described handle set comprises the first plate body and the second plate body, described first plate body and described second plate body interval are arranged, described bearing be positioned at described first plate body and described second plate body at least partially, described fixture block is located between described first plate body and described second plate body.
9. the parking brake for vehicle according to claim 1, is characterized in that, when described handle coordinates with described fixture block, described handle contacts with described fixture block face.
10. a fork truck, is characterized in that, comprising:
Front apron;
Brake system;
Bearing, described bearing comprises fixed body and baffle plate, and described fixed body is fixed on described front apron, and the outside face of described fixed body is provided with multiple ratchet, and described baffle plate is located on described fixed body;
Handle set, described handle set is located on described fixed body by the first rotating shaft rotationally, and described handle set is provided with fixture block;
Handle, the first end of described handle is located on described handle set by the second rotating shaft rotationally, and described handle is towards described fixture block rotation and when coordinating with described fixture block, described handle drives described handle set to rotate;
Ratchet, described ratchet is located on described handle set rotationally, and the first end of described ratchet is suitable for and described ratchet engagement;
Push rod, described push rod be located in described handle at least partially between lock position and unlocked position movably, when described unlocked position the first end of described push rod with described click-fit and the described first end promoting described ratchet rotate towards the direction away from described fixed body and engage to make described ratchet and described ratchet depart from, the described first end of described push rod and described click-fit when described lock position and make the described first end of described ratchet rotate to make described ratchet and described ratchet engagement towards the direction of described fixed body;
Push rod pull back spring, described push rod pull back spring is connected between described handle and described push rod often to drive described push rod to move towards described lock position;
Handle pull back spring, described handle pull back spring is connected between described handle and described baffle plate often to drive the second end of described handle towards described flapper;
Drag-line, one end of described drag-line is connected with described handle set and the other end is connected to described brake system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410475288.8A CN105480215B (en) | 2014-09-17 | 2014-09-17 | Parking brake and fork truck for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410475288.8A CN105480215B (en) | 2014-09-17 | 2014-09-17 | Parking brake and fork truck for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105480215A true CN105480215A (en) | 2016-04-13 |
| CN105480215B CN105480215B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410475288.8A Active CN105480215B (en) | 2014-09-17 | 2014-09-17 | Parking brake and fork truck for vehicle |
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| Country | Link |
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| CN (1) | CN105480215B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111086492A (en) * | 2018-10-23 | 2020-05-01 | 上汽通用汽车有限公司 | Parking brake device and automobile |
| CN114368475A (en) * | 2021-12-09 | 2022-04-19 | 西安航空制动科技有限公司 | Brake handle for airplane electric control emergency brake system |
| CN114577494A (en) * | 2022-03-28 | 2022-06-03 | 深圳市道通科技股份有限公司 | Clamping device and method for determining curve of stroke curve boss in clamping device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2709718B1 (en) * | 1993-09-10 | 1995-12-01 | Blg Systemes | Parking brake control device with increased effort. |
| CN201923111U (en) * | 2010-12-23 | 2011-08-10 | 奇瑞汽车股份有限公司 | Hand brake manipulating mechanism with variable lever ratio |
| CN202152045U (en) * | 2011-07-26 | 2012-02-29 | 洛阳兴宇软轴控制器有限公司 | Step-up hand brake device |
| CN202271978U (en) * | 2011-10-28 | 2012-06-13 | 安徽合力股份有限公司 | Hand brake control mechanism for fork truck |
-
2014
- 2014-09-17 CN CN201410475288.8A patent/CN105480215B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111086492A (en) * | 2018-10-23 | 2020-05-01 | 上汽通用汽车有限公司 | Parking brake device and automobile |
| CN114368475A (en) * | 2021-12-09 | 2022-04-19 | 西安航空制动科技有限公司 | Brake handle for airplane electric control emergency brake system |
| CN114368475B (en) * | 2021-12-09 | 2024-01-09 | 西安航空制动科技有限公司 | Brake handle for electric control emergency brake system of airplane |
| CN114577494A (en) * | 2022-03-28 | 2022-06-03 | 深圳市道通科技股份有限公司 | Clamping device and method for determining curve of stroke curve boss in clamping device |
| CN114577494B (en) * | 2022-03-28 | 2024-02-02 | 深圳市道通科技股份有限公司 | Clamping device and method for determining curve of travel curve boss in clamping device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105480215B (en) | 2016-09-07 |
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