CN206264824U - The jacking equipment of seat - Google Patents

Abstract

A kind of jacking equipment of seat, including：Little gear, the little gear is engaged with the input gear of link mechanism, and the link mechanism makes seat carry out raising and lowering operation；And control device is rotated, the rotation control device controls the rotation of the little gear.The rotation control device includes rotating shaft, rotates limiting mechanism, input block, cancel system and arrestment mechanism, the rotating shaft and the little gear synchronous axial system, the rotation limiting mechanism is included with the first meshing part of axis of rotation and by being engaged with first meshing part to limit the second meshing part of axis of rotation, input block is attached to operation handle to rotate around the axis, the cancel system by the input block from the rotation of neutral position to release the engagement of first and second meshing part, the arrestment mechanism applies brake force to the rotating shaft.

Description

The jacking equipment of seat

Cross-Reference to Related Applications

According to United States patent law 35U.S.C. § 119, it is September in 2015 30 days, application number that the utility model is based on the applying date It is the Japanese patent application of Patent 2015-193336, and requires the priority of this application, the full content of the application is combined This is used as reference.

Technical field

The utility model is related to a kind of jacking equipment of seat.

Background technology

Seat jacking equipment is used to adjust the vertical position of seat, and it generally has makes seat carry out raising and lowering The little gear that the link mechanism of operation is engaged with the input gear in link mechanism, and for controlling pinion rotation Rotation control device.When seat jacking equipment is hand seat jacking equipment, using such construction, i.e. wherein, lead to The driving force that will enter into operation handle by means of rotation control device is crossed to be sent to little gear to adjust by link mechanism support Seat vertical position.

For example, the rotation control for being disclosed in the seat jacking equipment of JP-A-2013-224692 (documents 1) sets Standby (clutch unit) can by be connected in the pull-up or push-down operation of the operation handle of the rotation control device and vertical Moved seat on direction.This control device that rotates includes the first meshing part with the rotating shaft unitary rotation of little gear, and The second meshing part engaged with the first meshing part.Limited by the engagement between the first and second meshing parts by being formed The rotation limiting mechanism of the so-called stagewise lock system of pinion rotation, can be in the state not operated to operation handle Stably keep the vertical position (lifting position) of seat.

The control device that rotates in correlation technique includes applying friction with to rotating shaft by the rotating shaft of sliding contact little gear The sliding contact parts of resistance.Thus, seat structure is because of seat load into will not drastically move down, even to manipulator Handle operated during rotate limiting mechanism rotation limitation be released from the state of be also such.

However, in the construction of prior art, when the brake force (confining force) based on frictional resistance is excessive, little gear The first and second meshing parts that rotating shaft may not turn to composition rotation limiting mechanism after operation handle is run are correct The position of engagement.In this case, because vibration and similar reason, the passenger for sitting on the seat may be due to the position of engagement Vibration and the sound produced by conversion are felt under the weather.

Meanwhile, the brake force for putting on rotating shaft be set it is smaller with avoid the position of engagement change in the case of, work as solution The solution division operation of each meshing part can be applied to each engaging piece in big load during except engagement between the first and second meshing parts Performed in the state of part.Due to the behaviour related with the solution division operation for performing meshing part when big load puts on meshing part The increase for making power and the generation for releasing the sound are likely to become the factor for reducing operation comfort, from this view, also have into one Walk the space for improving.

Utility model content

Solve in the seat jacking equipment of above-mentioned problem, be preferably provided with and the joining beam for making seat carry out lifting action The rotation control device that the little gear of the input gear engagement of mechanism and the rotation to the little gear are controlled, described turn Dynamic control device possess with the rotating shaft of the little gear synchronous axial system, with the first meshing part together rotated with the rotating shaft And the rotation limiting mechanism to limit the second meshing part of the rotation of the rotating shaft and operation are engaged with first meshing part It is handle input block linkedly around the axis of rotation, described to release from the rotation of neutral position by the input block The cancel system of the engagement of the first meshing part and the second meshing part and the brake to rotating shaft applying brake force Structure, the arrestment mechanism is configured to possess spring members, in the spring members, spring body based on elastic force with the rotating shaft Periphery contact in the state of be located at the rotating shaft, and radial outside in the rotating shaft is configured with the first spring end and the Two spring ends, the spring members are rotated in the rotation direction of the rotating shaft, so that first spring end and second The relative position change of spring end, and the spring body is radially expanded direction and bend, and based on the releasing machine When acting the engagement for releasing first meshing part and the second meshing part of structure, makes the spring body to radial expansion The relative position change of direction bends, first spring end and second spring end is limited.

That is, in the state of spring body is based on resilient contact, it is adapted to rotating shaft by spring members such that it is able to be based on The frictional force countershaft applies brake force.In addition, the spring members are based on the turning along the rotating shaft with the frictional force between the rotating shaft Dynamic direction rotates.Therefore, according to the structure, when axis of rotation is made based on the operation input relative to operation handle, the bullet Spring part radially expands direction bending, and the brake force for putting on spring members weakens such that it is able to successfully carry out to the behaviour Make the operation input of handle.And, after being operated to operation handle, the axis of rotation to composition can be made to rotate limitation machine The position of the first meshing part of structure and the second meshing part correct engagement.

In addition, when the action based on cancel system releases the engagement of the first meshing part and the second meshing part, making The relative position change of spring body bends to radial expansion direction, the first spring end and second spring end is limited System such that it is able to make the brake force of the frictional force based on the spring members put on rotating shaft with not weakening.And, thus, in solution During except the engagement, the larger load of the little gear side engaged from the input gear with link mechanism can not apply to first to nibble Close part and the second meshing part.Carried therefore, it is possible to the operating physical force needed for the solution division operation for reducing the rotation limiting mechanism Operability high.In addition, the generation of the releasing sound can in the lump be suppressed to ensure silence higher.And, thereby, it is possible to reality Now more superior operation comfort.

In addition, according to said structure, the change of the Frotteurism produced by axis of rotation can be suppressed, i.e., from static friction shape State moves to dynamic friction state so as to the change of the frictional force for producing.And, thus, the brake force of stabilization is applied to the rotating shaft, from And the seat is drastically moved down because of seat load in the solution division operation of rotation limiting structure.

In solving the vehicle seat used jacking equipment of above-mentioned problem, it is preferable that the arrestment mechanism possess the first junction surface, Holding rod and retainer, in the case where the spring members are rotated to the rotation direction of the rotating shaft, the first junction surface pair The circumference movement of first spring end is limited, and holding rod is axially supported to be rotated around support shaft and in institute State spring members along the rotating shaft rotation direction rotate in the case of with the second spring end abutment, based on the solution When the engagement of first meshing part and the second meshing part is released except the operation of mechanism, by with the input block The circumferential position for abutting the holding rod is rotated and is moved to together, and rotation of the retainer to the holding rod is limited, institute State holding rod to be configured in the case of the confined state of the rotation of the support shaft, to the second spring end Circumference movement limited, and in the case of being allowed for around the rotation of the support shaft, be pressed into the second spring end Portion is to rotate, so that allow the circumference of the second spring end mobile, and the retainer is configured to, by the input Part rotates more than the rotational angle for making second meshing part depart from from first meshing part, the retainer movement To the circumferential position of the rotation for allowing the holding rod.

According to said structure, only the first meshing part and the second meshing part are released in the action based on cancel system Engagement when, can just make to cause the spring body of spring members bends to radial expansion direction, the first spring end with And the relative position change of second spring end is limited.In addition, when the engagement is released, can make along the rotation direction of rotating shaft Carry out circumferential mobile second spring end close to circumferential confined first spring end of movement such that it is able to spring master Body changes the relative position of the first spring end and second spring end to the mode that radial expansion direction bends.And, Rotation thereby, it is possible to make operation handle successfully operate to release the rotation limiting mechanism is limited.

The seat jacking equipment of above-mentioned problem is solved, is preferably provided with operating input transport mechanism, operation input is passed Sending mechanism will be input into the driving of the operation handle by the input block from neutral position rotation in the first direction Power is transferred to the rotating shaft, and the operation input transport mechanism is ratchet mechanism, and it allows the rotating shaft upward in the seat The rotation of the first direction along when mobile, and allow second direction of the rotating shaft along when the seat is moved down Rotation, the cancel system rotated by the input block from neutral position to second direction, and released and be based on the spine The rotation limitation to the rotating shaft of wheel mechanism, the arrestment mechanism possesses first junction surface, the holding rod and second Junction surface, the first junction surface limits the week of first spring end in the case where the spring members are rotated in a second direction, Allow the circumference of first spring end mobile to movement and in the case where the spring members are rotated in a first direction, Holding rod exists in the case where the spring members are rotated to second direction with the second spring end abutment, the second junction surface The spring members limit second spring end circumference in the case of being rotated in a first direction is mobile.

According to said structure, enter to exercise the operation input that input block is rotated in a second direction, relative to operation handle, from And the rotation limitation of rotating shaft can be released, and move down the seat.In addition, entering to exercise input block to operation handle along The operation input that one direction rotates, based on the function and operation input transmission mechanism that constitute the ratchet mechanism for rotating limiting mechanism Function, can move up the seat supported by the link mechanism.In addition, now, spring members are based on being rubbed with rotating shaft Wipe power to be rotated to first direction, the first spring end moves confined second spring end close to the circumference of the first direction, So as to the side that the relative position of the first spring end and second spring end is bent with the spring body to radial expansion direction Formula changes.And, thereby, it is possible to successfully operate operation handle so that the seat is moved up.

The vehicle seat used lowering or hoisting gear of above-mentioned problem is solved, preferably described operation input transmission mechanism possesses ratchet and drive Lever, the ratchet is rotated together with the rotating shaft, the drive rod have the engaging piece that is engaged with the ratchet and with the input Part is rotated together, and it is to be rotated around e axle supporting part that the drive rod be configured to the active force based on force application part to be exerted a force, so that In the case where the input block is rotated in a first direction, the engaging piece engages with the ratchet and is transmitted to the ratchet and driven Power, and in the case where the input block is rotated in a second direction, drive rod overcomes the active force around the axle branch Bearing member is rotated, so that the engaging piece departs from from the ratchet, the arrestment mechanism is configured to the e axle supporting part of the drive rod Played a role as the retainer.

According to said structure, by repeating be rotated in a first direction input block and making the input to operation handle Part returns to the operation of neutral position such that it is able to move up seat.And, the e axle supporting part of drive rod doubles as stop Part such that it is able to realize the simplification of the structure.

In the seat lowering or hoisting gear for solving the above problems, it is preferable that the spring members are torsion disc springs.

According to said structure, change the relative position of the first spring end and second spring end such that it is able to make Spring body radially expands direction bending.And, with spiral helicine spring body such that it is able to easily set its appropriate Amount of bow.

Brief description of the drawings

The foregoing of the disclosure, feature and feature are become more by the follow-up detailed description carried out with reference to refer to the attached drawing Plus it is clear, wherein：

Fig. 1 is the side view (in the vehicle width direction from terms of outside) of seat jacking equipment；

Fig. 2 is the side view (in the vehicle width direction from terms of inner side) of seat jacking equipment；

Fig. 3 is the stereogram of the rotation control device for constituting operation handle and seat jacking equipment；

Fig. 4 is the side view with the integrally formed little gear of rotating shaft and ratchet；

Fig. 5 is the side view for rotating control device；

Fig. 6 is the front view for rotating control device；

Fig. 7 is the stereogram for rotating control device；

Fig. 8 is the three-dimensional exploded view for rotating control device；

Fig. 9 is the three-dimensional exploded view for rotating control device；

Figure 10 is the sectional view (Ⅹ-Ⅹ section of Fig. 6) for rotating control device；

Figure 11 is the sectional view (Ⅺ-Ⅺ section of Fig. 6) for rotating control device；

Figure 12 is the sectional view (Ⅻ-Ⅻ section of Figure 10) for rotating control device；

Figure 13 is the sectional view (sections of III-X of X III of Figure 10, neutral position) for rotating control device；

Figure 14 is the sectional view (sections of III-X of X III of Figure 10, when being rotated in a first direction) for rotating control device；

Figure 15 is the sectional view (sections of III-X of X III of Figure 10, when being rotated in a second direction) for rotating control device；

Figure 16 is the sectional view (sections of VI-X of X VI of Figure 10, neutral position) for rotating control device；

Figure 17 is the sectional view (sections of VI-X of X VI of Figure 10, when being rotated in a first direction) for rotating control device；

Figure 18 is the sectional view (sections of VI-X of X VI of Figure 10, when being rotated in a second direction) for rotating control device；

Figure 19 is the sectional view (sections of II-X of X II of Figure 10, when ratchet mechanism is in releasing state) for rotating control device；

Figure 20 is the sectional view (the XX-XX sections of Figure 10, neutral position) for rotating control device；

Figure 21 is the sectional view (the XX-XX sections of Figure 10, when being rotated in a first direction) for rotating control device；

Figure 22 is the sectional view (the XX-XX sections of Figure 10, when being rotated in a second direction) for rotating control device；

Figure 23 is the sectional view (sections of III-X of X III in Figure 10, during the disengaging angle of locking member) for rotating control device； And

Figure 24 is the sectional view (sections of VI-X of X VI in Figure 10, during the disengaging angle of locking member) for rotating control device.

Specific embodiment

An implementation method on seat jacking equipment is illustrated below with respect to accompanying drawing.

As shown in figure 1, vehicle seat used 1 has seat insert 2 and is arranged to the rearward end of relatively described seat insert 2 The chair back 3 of free inclination.In the present embodiment, in the floor section 4 of vehicle, each lower rail 5 is along vehicle for a pair of L-R lower rails 5 Front-rear direction extends.The upper rail 6 that relative motion can be carried out on corresponding lower rail 5 along the bearing of trend of lower rail 5 is installed on In each lower rail 5.Lower rail 5 in the present embodiment is supported on the support 7 for being located at floor section 4.Seat in the present embodiment 1 Support on the seat slide apparatus 8 being made up of lower rail 5 and upper rail 6.

The seat 1 of the present embodiment is fixed to upper rail 6 by seat jacking equipment 10.By using seat jacking equipment 10 Function, the passenger of vehicle can carry out the position adjustment (Height Adjustment of seat insert 2) of vertical direction seat 1.

Specifically, as shown in Fig. 2 the seat jacking equipment 10 of the present embodiment is provided with link mechanism 12, the link mechanism The 12 multiple linkage parts 11 by freely rotating support seat 1.Specifically, link mechanism 12 is provided with preceding joining beam 11a, it is described before Joining beam 11a is connected to the leading section (end on the left of Fig. 2) of the side frame 13 for constituting the framework of seat 2, and is connected to and is located in upper rail 6 Base component 14 leading section.Preceding joining beam 11a is connected to rotate.Link mechanism 12 has the connection rearward end of side frame 13 The rear joining beam 11b of (rearward end on the right side of Fig. 2) and the rearward end of base component 14.Joining beam 11b is connected to rotate afterwards.Change speech It, a kind of well-known parallel attachment structure is used for the link mechanism 12 of the present embodiment.By constituting each of link mechanism 12 The rotation of linkage part 11, the seat jacking equipment 10 of the present embodiment can make the seat 1 being supported on seat jacking equipment 10 Carry out raising and lowering operation.

In the present embodiment, compared to point of contact X3, X4 of the preceding joining beam 11a and rear joining beam 11b of connection base component 14, connection Point of contact X1, X2 of the preceding joining beam 11a and rear joining beam 11b of side frame 13 are set as closer to vehicle rear-side (right side of Fig. 2).Change speech It, in the linkage structure 12 of the present embodiment, is supported in the seat 1 on linkage part 11 by linkage part 11 along the side of side frame 13 Point of contact X1, X2 rotate (rotating counterclockwise in Fig. 2) and move up towards the mobile direction of vehicle front (left side of Fig. 2). The seat 1 being supported on linkage part 11 is configured to the side moved towards rear view of vehicle along point of contact X1, X2 by linkage part 11 Moved down to (rotating clockwise in Fig. 2) is rotated.

In the present embodiment, input gear 16 (sector gear) is formed on rear joining beam 11b, the side frame 13 on the right side of its connection. Joining beam 11b is one of connection member 11 of composition link mechanism 12 afterwards, and the center of rotation of input gear 16 is point of contact X2. In other words, input gear 16 is shared rotating shaft Q1 and is rotated together with rear joining beam with rear joining beam 11b.In the present embodiment, connection left and right The rotating shaft Q1 of joining beam 11b after the composition of torque tube 17 of the side frame 13 (rearward end 13b) of both sides.Driven by with input gear 16 Joining beam 11b afterwards, the link mechanism 12 of the present embodiment can make the seat 1 supported by link mechanism 12 carry out raising and lowering behaviour Make.

Additionally, the seat jacking equipment 10 of the present embodiment has little gear 18, the little gear 18 and the connection being configured as above The input gear 16 of linkage 12 is engaged.As shown in figures 1 and 3, in the present embodiment, operation handle 20 is located at seat insert 2 Side (front side of Fig. 1 drawings).As shown in Figures 2 and 3, the seat jacking equipment 10 of the present embodiment has and is based on to operation handle 20 operation is input into the rotation control device 21 to control little gear 18 to rotate.

Specifically, as shown in Figure 4, in the seat jacking equipment 10 of the present embodiment, little gear 18 and the one of rotating shaft 22 into Type.As shown in Fig. 5 to Figure 11, the control device 21 that rotates of the present embodiment has turning with free rotating manner supporting little gear 18 First supporting member 23 and the second supporting member 24 of axle 22.

As shown in Fig. 8 to Figure 10, the first supporting member 23 has the outside of essentially plate shaped.Second supporting member 24 has Towards the plate portion 25 of the first supporting member 23.Second supporting member 24 of the present embodiment includes multiple (being two in the present embodiment) The first supporting member 23 is fixed in leg 26, these legs 26, and therefore, plate portion 25 is set to towards the first supporting member 23. The rotating shaft 22 of little gear 18 is inserted via jack 27 and 28, and jack 27 and 28 is respectively arranged on the He of plate portion 25 of the second supporting member 24 In first supporting member 23.

Specifically, as shown in Figure 4, the little gear 18 of the present embodiment is formed at a side (first end of rotating shaft 22 The end on right side in 22a, Fig. 4).Continue and extend to the big straight of center side (left side in Fig. 4) from little gear 18 in the axial direction Footpath portion 22c is in rotating shaft 22.

Meanwhile, as shown in Figure 10, the internal diameter of the jack 28 being formed within the first supporting member 23 is set as being approximately equal to (slightly More than) located at little gear 18 rotating shaft 22 on major diameter portion 22c external diameter.It is formed in the plate portion 25 of the second supporting member 24 The internal diameter of jack 27 be set as being approximately equal to (be slightly larger than) another side (the second end 22b, the end in left side in Figure 10 of rotating shaft 22 Portion) external diameter, the another side be located at little gear 18 opposite side.In other words, in the rotation control device 21 in the present embodiment, The major diameter portion 22c of the rotating shaft 22 of little gear 18 is kept by the first supporting member 23, and the second end 22b of rotating shaft 22 is by second The plate portion 25 of supporting member 24 keeps.Thus, the rotation control device 21 of the present embodiment is configured in little gear 18 from rotating shaft control The rotating shaft of little gear 18 is supported in the state of the back side 23b sides (right side in Figure 10) of the first supporting member 23 of control equipment 21 are prominent 22 freely rotate.

As shown in figs. 3 and 10, the rotation control device 21 of the present embodiment is fixed on the side frame for constituting the framework of seat insert 2 13 side surface 13s, by the use of the back side 23b of the first supporting member 23 for rotating control device 21 as stationary plane.Specifically, such as Shown in Fig. 2 and Fig. 3, in the seat 1 of the present embodiment, penetrated along the width (perpendicular to the direction on Fig. 2 drawings surface) of seat The through hole 30 of side frame 13 is formed in the side surface 13s of side frame 13.The input gear 16 of the side of link mechanism 12 is located at towards through hole 30 position.The rotation control device 21 of the present embodiment is configured in the small tooth stretched out from the back side 23b of the first supporting member 23 Wheel 18 is inserted under the pattern in through hole 30 side frame 13 for being fixed to seat 1.

As shown in Fig. 4, Fig. 8 and Fig. 9, ratchet 31 is used as the first meshing part rotated together with rotating shaft 22, and located at this In the rotating shaft 22 for rotating the little gear 18 in control device 21 of embodiment.In the present embodiment, ratchet 31 is substantially located at rotating shaft 22 Central portion.As shown in Fig. 8, Fig. 9 and Figure 12, the rotation control device 21 of the present embodiment has multiple locking members 32, locking Part 32 limits the rotation of the rotating shaft 22 for being provided with ratchet 31 and little gear 18.The rotation of rotating shaft 22 is by locking member 32 and spine Wheel 31 between engagement and it is confined.

Specifically, as shown in figure 12, in the rotation control device 21 of the present embodiment, locking member 32 is located at the footpath of ratchet 31 Laterally, locking member 32 be in due on the first supporting member 23 hold portion 33 holding effect and can not be circumferentially In the state of movement.The rotation control device 21 of the present embodiment has a pair of locking part 32, and this pair of locking member 32 is located at It is in circumferentially with plant ratchet 31 on about 180 ° of separate positions.The locking member 32 of the present embodiment has the outer of essentially plate shaped Portion, and including the engaging piece 32a engaged with ratchet 31 on one end.The multiple for holding portion 33 for constituting locking member 32 is dashed forward Portion 34 is held to be formed on the surface 23a of the first supporting member 23.

Specifically, in the rotation control device 21 of the present embodiment, each hold portion 33 by the circumference of ratchet 31 with A pair of predetermined interval arrangement prominent to hold portion 34 and constitutes.Each locking member 32 is configured to be inserted in and constitutes two that hold portion 33 It is prominent to hold between portion 34, and therefore limit the movement around ratchet 31 in the circumferential.

The portion 33 that holds of the present embodiment allows the locking member 32 kept by holding portion 33 to move radially, i.e. allow lock The engaging piece 32a for determining part 32 is relatively moved along the direction for approacing and leave ratchet 31.Additionally, the rotation control of the present embodiment Control equipment 21 has ring spring 35, and ring spring 35 is used as bias component, and its biasing locking member 32 is with by locking member 32 Push-in ratchet 31.In other words, the ring spring 35 includes bending to the spring body 35c of generally arcuate (approximately C-shaped).Locking Part 32 is configured so that：By locking member 32, (elasticity is extensive for elastic force based on the direction reduced along the diameter of ring spring 35 Multiple power) and to the relative movement of radially inner side, engaging piece 32a is engaged with ratchet 31.

Now, in the present embodiment, ratchet 31 and locking member 32 are configured so that：Shape (tooth based on engaging portion Shape), when ratchet 31 is along when rotating in an anti-clockwise direction, the locking member 32 that generation is engaged with ratchet 31 is outside to footpath in such as Figure 12 The active force of side shifting, i.e. generation makes locking member 32 depart from the active force of ratchet 31.Thus, the rotation control of the present embodiment Control equipment 21 has been configured to define the ratchet mechanism 40 for rotating limiting mechanism effect, rotation limiting mechanism limitation rotating shaft 22 edge Seat 1 moves down the rotation in direction, while allowing rotating shaft 22 that the rotation in direction is moved along seat 1.

In other words, the seat jacking equipment 10 of the present embodiment is configured so that：Due to the rotating shaft 22 of little gear 18 and ratchet 31 in the first direction (counter clockwise direction in Figure 12) rotate together, the seat 1 supported by link mechanism 12 is moved up.This When, in ratchet mechanism 40, the locking member 32 engaged with ratchet 31 is based on ratchet 31 and the shape of locking member 32 overcomes annular The biasing force of spring 35 is moved to radial outside.Thus, the ratchet mechanism 40 of the present embodiment is configured to allow for the edge of rotating shaft 22 First direction is rotated, and the seat 1 being supported on link mechanism 12 is got over a tooth every time in the locking member 32 for being engaged in ratchet 31 Cross in the pattern of the teeth portion of ratchet 31 and moved up along the first direction.

Additionally, the ratchet mechanism 40 of the present embodiment is configured so that：When ratchet 31 is along the second direction (up time in Figure 12 Pin direction) when rotating, the engagement between ratchet 31 and locking member 32 is added because of the shape of ratchet 31 and locking member 32 (nip) by force.Thus, the rotation control device 21 of the present embodiment can be by limiting rotating shaft 22 along being supported on link mechanism 12 The rotation in direction along when moving up of seat 1 overcome seat load to keep seat position.

As shown in Fig. 6 to Figure 11, the control device 21 that rotates of the present embodiment has the input block 41 of basic plate shape, described Based on the input operation to operation handle 20, the rotating shaft 22 around little gear 18 is rotated input block 41.As Fig. 8 to Figure 10 institute Show, the input block 41 of the present embodiment includes the jack 41a that the rotating shaft 22 (the second end 22b) of little gear 18 is inserted by it. The seat jacking equipment 10 of the present embodiment is configured to make operation handle 20 be directly fixed to input block 41.Thus, the present embodiment Little gear 18 be configured to be rotated together with the operation handle 20 at the position coaxial with little gear 18.

As shown in Figure 1 to Figure 3, the operation handle 20 of the present embodiment have extend to vehicle front side (right side in Fig. 1) Rod, while using terminal part as handle portion 20a.Handle portion 20a is located at the side of seat insert 2, using handle portion 20a substantially Position where during parallel to vehicle floor portion is used as neutral position P0.

In the seat jacking equipment 10 of the present embodiment, direction and handle that operation handle 20 is pulled up along handle portion 20a The direction that portion 20a is pushed down carries out rotating operation.The input block 41 of the present embodiment is configured to the pull-up by operation handle 20 Operation and rotated in (counter clockwise direction in Fig. 6) in a first direction, and by the push-down operation of operation handle 20 the Rotated on two directions (clockwise direction in Fig. 6).

Herein, as shown in Fig. 8 to Figure 10, in the rotation control device 21 of the present embodiment, the second supporting member 24 includes flat Flat cylindrical portion 42, the cylindrical portion 42 is general cylindrical shape and is located at plate with the pattern of the radial outside twisted rotary shaft 22 of rotating shaft 22 At position between portion 25 and leg 26.As shown in figure 8 and 13, constituting the ring spring of the bias component of ratchet mechanism 40 The same way of 35 (referring to Figure 12), including the ring spring 43 of the spring body 43c bent with generally arcuate (approximately C-shaped) sets In on the inner side of cylindrical portion 42.As shown in Figure 11 and Figure 13 to Figure 15, the rotation control device 21 of the present embodiment is replied with handle Mechanism 44, the elastic force (elastic restoring force) that the handle response agency 44 is based on ring spring 43 makes to be connected to the behaviour of input block 41 Make handle 20 and return back to neutral position P0.

Specifically, as shown in Fig. 7, Fig. 8 and Figure 11, connecting portion 45 on the input block 41 of the present embodiment, with from defeated The circumferential edge part for entering part 41 extends along the axis direction of rotating shaft 22 towards the side of the first supporting member 23 (right side of Figure 11).As schemed Shown in 13, the ring spring 43 of the present embodiment is included from the both ends of spring body 43c to the dogleg section of radially inner side bending 43a and 43b.As illustrated in figures 11 and 13, the end of the connecting portion 45 on input block 41 be located at dogleg section 43a and 43b is between the two.

In other words, the rotation control device 21 of the present embodiment is configured so that：It is defeated by the operation based on operation handle 20 Enter and rotate input block 41, the connecting portion 45 of input block 41 presses dogleg section circumferentially located at the two ends of ring spring 43 Any one in 43a and 43b.In the present embodiment, the end structure of connecting portion 45 releases part 65 and (retouches later into adaptation State) connecting portion 74, and the dogleg section 43a and 43b of ring spring 43 presses defeated by releasing the connecting portion 74 of part 65 Enter the connecting portion 45 of part 41.The handle response agency 44 of the present embodiment is configured to, and the connecting portion 45 based on input block 41 is pressed The elastic force of the ring spring 43 produced by backfin bight portion 43a and 43b, before the connecting portion 45 of input block 41 is returned back into rotation Position circumferentially, i.e. return back to the circumferential position corresponding to the neutral position P0 of operation handle 20.

Specifically, as shown in figure 14, in the handle response agency 44 of the present embodiment, input block 41 is based on operation handle 20 Upper pulling process rotate in (counter clockwise direction in Fig. 6 and Figure 14) in a first direction, and, thus, located at input block 41 Connecting portion 45 press ring spring 43 the first bending part 43a.As shown in figure 15, input block 41 is based on operation handle 20 Push-down operation is rotated in second direction (clockwise direction in Fig. 6 and Figure 15), and, thus, located at input block 41 Connecting portion 45 presses the second bending part 43b of ring spring 43.

As shown in Fig. 6 and Figure 11, in the rotation control device 21 of the present embodiment, the dogleg section 43a with ring spring 43 The junction surface 46 engaged with 43b is formed on the second supporting member 24.The rotation control device 21 of the present embodiment is configured to：It is based on Engagement relationship between dogleg section 43a and 43b and junction surface 46, limitation dogleg section 43a and 43b edges and input block 41 In opposite direction the circumferentially rotating of the pressing dogleg section of connecting portion 45 43a and 43b.

Specifically, as shown in Figure 11 and Figure 14, when the of the ring spring 43 pressed by the connecting portion 45 of input block 41 When (top side of Figure 11) is mobile in the first direction in the circumferential, the second dogleg section 43b of opposite side is abutted against one dogleg section 43a Junction surface 46, and, thus, movement in the first direction in the circumferential is limited.As shown in Figure 11 and Figure 15, when by input unit Second dogleg section 43b of the ring spring 43 of the pressing of 41 connecting portion of part 45 in the circumferential move in a second direction by (bottom side of Figure 11) When dynamic, the first dogleg section 43a of opposite side movement in the circumferential in a second direction is limited.Thus, the present embodiment turn In dynamic control device 21, the elastic restoring force of ring spring 43 can be based on, by suppressing ring spring 43 relative to input unit The common rotation of part 41 makes the operation handle 20 for being fixed on input block 41 return back to neutral position P0.

As shown in Figure 16 to Figure 18, the rotation control device 21 of the present embodiment has the (feeding of operation input driver structure 50 Mechanism), the transmission mechanism is based on the upper pulling process of operation handle 20, by input block 41, (Figure 16 extremely schemes in a first direction Counter clockwise direction in 18) rotation and will be input into the driving force of operation handle 20 and be sent to the rotating shaft 22 of little gear 18.

Specifically, the operation input driver structure 50 of the present embodiment has the spine rotated together with the rotating shaft 22 of little gear 18 Wheel 51, also with drive rod 52, drive rod 52 includes the engaging piece 52a engaged with ratchet 51, and turns together with input block 41 It is dynamic.

As shown in Fig. 9 and Figure 16, in the rotation control device 21 of the present embodiment, the hexagonal portion with hexagonal cross-section 22d is located at the second end 22b sides of the rotating shaft 22 of little gear 18.Ratchet 51 has what is engaged with the hexagonal portion 22d of rotating shaft 22 Hexagonal hole 51a.

As shown in Fig. 6, Fig. 8 and Figure 16, extend and be roughly parallel to the rotating shaft of little gear 18 to the side of the first supporting member 23 On the input block 41 of the present embodiment, drive rod 52 is axially supported 22 e axle supporting part 53 by e axle supporting part 53, and, by This, drive rod 52 is located at the radial outside of ratchet 51 with the state that can be rotated.Drive rod 52 is by adapting to e axle supporting part 53 Elastic force (elastic restoring force) produced by interior torsion disc spring 54 and biased with rotating manner around e axle supporting part 53.Thus, originally The drive rod 52 of embodiment is configured to make the engaging piece 52a located at the one end of drive rod 52 be engaged with ratchet 51.

Additionally, in the operation input driver structure 50 of the present embodiment, ratchet 51 and drive rod 52 are configured so that：When with it is defeated When entering the drive rod 52 that part 41 rotates together and being moved towards the radial outside of ratchet 51 in the first direction in the circumferential, ratchet 51 and drive Shape (tooth form) of the engagement based on engaging portion between lever 52 is reinforced (nip).When drive rod 52 is in the circumferential along Two directions towards the radial outside of ratchet 51 move when, the shape of the engaging portion based on drive rod 52 and ratchet 51, drive rod 52 The engaging piece 52a engaged with ratchet 51 is configured to produce the active force towards radial outside movement, that is, producing departs from engaging piece 52a In the active force of ratchet 51.

In other words, as shown in figure 17, the operation input driver structure 50 of the present embodiment is based on operation by input block 41 The upper pulling process of handle 20 therefrom property position p0 (P0) rotations in the first direction make the rotating shaft 22 of little gear 18 via with ratchet 51 engagement drive rods 52 and with the unitary rotation of input block 41.When input block 41 returns back to neutral position p0 (P0), with The drive rod 52 of the engagement of ratchet 51 is configured to allow rotating shaft in drive rod 52 crosses the pattern of the teeth portion of ratchet 51 tooth every time 22 rotation in a second direction.

In other words, the rotation control device 21 of the present embodiment can be by being fixed to the operation handle 20 of input block 41 Pulling process in repetition, with the rotating shaft 22 of rotating manner driving pinion 18.In the present embodiment, operation handle 20 pulls up behaviour each time The rotational angle maximum of work is set as a value, two teeth portion of value correspondence ratchet 31.Thus, the seat lifting of the present embodiment sets Standby 10 are constructed to be permeable to move up the seat 1 supported by link mechanism 12.

As shown in fig. 16 and 18, the rotation control device 21 of the present embodiment has attachment 55, the attachment 55 The end (abutment end 52b) of the another side of the drive rod 52 that abutting is rotated together with input block 41, i.e. the end is when defeated Enter part 41 from neutral position p0 rotated along second direction (clockwise direction in Figure 16 and Figure 18) when with mesh ratchet gear 51 Engaging piece 52a opposite sides end.The operation input driver structure 50 of the present embodiment is configured so that：Abut attachment 55 drive rod 52 overcomes the bias force of torsion disc spring 54 to rotate.

In other words, the operation input driver structure 50 of the present embodiment is configured so that：When input block 41 from neutral position When p0 is rotated in a second direction, the engaging piece 52a of drive rod 52 departs from from ratchet 51.Thus, the rotation control of the present embodiment sets Standby 21 are configured to the drive rod 52 when the operation handle 20 for being subjected to push-down operation returns back to neutral position p0 does not interfere with ratchet 51.

As shown in Figure 9 and Figure 10, the rotation control device 21 of the present embodiment includes support plate 57, and the support plate 57 includes The jack 56 for inserting the rotating shaft 22 of little gear 18.Support plate 57 is fixed to intermediate member 61 (describing later), and, by This, support plate 57 is limited around the rotation of rotating shaft 22.The attachment 55 of the present embodiment have be basically parallel to rotating shaft 22 Axle shape, and peripheral edge portion by support plate 57 supported.

As shown in figure 19, the rotation control device 21 of the present embodiment has cancel system 60, and the cancel system 60 passes through The push-down operation based on operation handle 20 of input block 41 and release composition from neutral position p0 rotations in a second direction Engagement between the ratchet 31 and locking member 32 of ratchet mechanism 40.

Specifically, as shown in Figure 10, the rotation control device 21 of the present embodiment has intermediate member 61, the intermediate member Along the axis direction of the rotating shaft 22 of little gear 18 be inserted in the first supporting member 23 and the second supporting member 24 plate portion 25 it Between.

As shown in Fig. 8 to Figure 10, in the rotation control device 21 of the present embodiment, intermediate member 61 is substantially in flat The cylindrical configuration of hat shape, the cylindrical configuration has cylindrical portion 61a and cap portion 61b.Cylindrical portion 61a is around composition ratchet mechanism 40 The radial outside of ratchet 31, and cap portion 61b located at cylindrical portion 61a axial direction one end.Intermediate member 61 includes being located in cap portion 61b The circular hole 62 in portion.Additionally, with the second major diameter portion 22e than major diameter portion 22c larger diameters than the opposite second end of ratchet 31 The distance of portion 22b sides closer to (referring to Fig. 4) in the rotating shaft 22 of the present embodiment.Located at the cap portion 61b of intermediate member 61 The internal diameter of circular hole 62 is set as being approximately equal to (be slightly larger than) the second major diameter portion 22e.

In other words, in the circular hole 62 of the insertion of rotating shaft 22 in the cap portion 61b of little gear 18 and cylindrical portion 61a it is another One side is abutted in the state of the surface 23a of the first supporting member 23, and the intermediate member 61 of the present embodiment is located at the first support Between the supporting member 24 of part 23 and second.As shown in Fig. 8, Fig. 9 and Figure 12, in the present embodiment, multiple axially extending otch 63 In the cylindrical portion 61a of intermediate member 61.The intermediate member 61 of the present embodiment is configured so that：Intermediate member 61 around the shaft 22 Relative to the first supporting member 23 and the second supporting member 24 relative rotation due to the leg of the supporting member 24 of otch 63 and second The engagement in portion 26 and be limited.

As shown in Fig. 9, Figure 10 and Figure 20, in the rotation control device 21 of the present embodiment, be connected to input block 41 with around What the rotating shaft 22 of little gear 18 was rotated releases part 65 between the cap portion 61b and ratchet 31 of intermediate member 61.Additionally, with solution Except the junction surface 66 of the engagement of part 65 is formed in locking member 32.The cancel system 60 of the present embodiment is configured to based on releasing portion The operation of part 65, releases the engagement of the ratchet 31 and locking member 32 that constitute ratchet mechanism 40.

Specifically, as shown in Fig. 8 to Figure 10, the part 65 that releases of the present embodiment has the outside of basic plate shape, the plate shape Outside there is circumferential wall portion 65a in the peripheral edge portion for releasing part 65, the circumferential wall portion 65a (referring to Figure 12) is along centre The cylindrical portion 61a of part 61 extends.The second major diameter portion 22e in the rotating shaft 22 of little gear 18 is inserted by jack 71, The jack 71 is located at the central portion for releasing part 65.Additionally, in the present embodiment, the internal diameter of jack 71 is also set to be approximately equal to (slightly More than) the second major diameter portion 22e.Thus, the releasing part 65 of the present embodiment is configured in circumferential wall portion 65a towards the first supporting It is supported for be rotated around the rotating shaft 22 of little gear 18 in the state of the surface 23a sides of part 23.

As shown in Fig. 9 and Figure 20, the part 65 that releases of the present embodiment has from releasing the neighboring of part 65 towards footpath The connecting portion 74 for extending laterally.Specifically, as shown in figs. 8 and 12, in the releasing part 65 of the present embodiment, circumferential wall portion 65a is located at two circumferentially spaced positions.Connecting portion 74 is formed at the middle position between two circumferential wall portion 65a.

As shown in Fig. 9, Figure 11 and Figure 13, groove portion 74a is coordinated to be formed at the terminal part of connecting portion 74.Located at input block 41 On the terminal part of connecting portion 45 fit into cooperation groove portion 74a.Thus, the releasing part 65 of the present embodiment is configured to based on right The input operation of operation handle 20 and rotated together with input block 41.

Meanwhile, as shown in Fig. 9, Figure 10 and Figure 20, in the rotation control device 21 of the present embodiment, constitute ratchet mechanism 40 The junction surface 66 of locking member 32 has the prominent shape prominent axially towards the side of part 65 (left side in Figure 10) is released.Locking A pair of engaging hole 75 that the junction surface 66 of part 32 is inserted is in the releasing part 65 of the present embodiment.

Specifically, each engaging hole 75 has long hole shape, and its length direction is axially supported and releases turning for part 65 The circumference of axle 22.In the present embodiment, the inner wall surface 75a of each radially inner side of engaging hole 75 is used as cam surface 76, based on releasing The turned position of part 65, the cam surface 76 abuts the junction surface 66 of each locking member 32.It is convex in the cancel system 60 of the present embodiment Wheel face 76 is configured to make locking member 32 depart from the rotating shaft 22 1 with little gear 18 by overcoming the bias force of ring spring 35 The ratchet 31 for rotating is acted, this process is based on releasing part 65 turned position, by the locking member 32 by engaging hole 75 is inserted Junction surface 66 towards radial outside press and realize.

In more detail, as shown in figure 20, the present embodiment release part 65 in, towards radially inner side protrude limitation protuberance 77 are formed on each inner wall surface 75b of each radial outside of engaging hole 75.As shown in Figure 20 and Fig. 6, the solution of the present embodiment Except mechanism 60 is configured so that：When input block 41 is in neutral position p0, the end for limiting protuberance 77 is set to towards lock Determine the junction surface 66 of part 32.

In other words, in the cancel system 60 of the present embodiment, when input block 41 is located at neutral position p0, protuberance is limited 77 limit locking members 32 towards the movement of radial outside, and, thus, the operation for preventing locking member 32 from departing from from ratchet 31. Thus, the rotation control device 21 of the present embodiment is configured to little gear 18 when operation input is not carried out to operation handle 20 Rotating shaft 22 be maintained at the state that can not be rotated.

As shown in figure 21, the cancel system 60 of the present embodiment is configured so that：When cancel system 60 and input block 41 from Neutral position p0 is when (counter clockwise direction in Figure 21) is rotated together along a first direction, the cam surface 76 in engaging hole 75 The junction surface 66 of locking member 32 is not abutted.Thus, cancel system 60 is configured to the inwall in the radial outside of each engaging hole 75 Gap is formed between the junction surface 66 of surface 75b and each locking member 32.

In other words, the cancel system 60 of the present embodiment allows locking member 32 during the upper pulling process of operation handle 20 Move radially.Thus, the rotation control device 21 of the present embodiment can be based on ratchet mechanism 40 effect make little gear 18 turn Axle 22 is rotated in a first direction.

Additionally, as shown in figure 22, the cancel system 60 of the present embodiment is configured to, release part 65 and input block 41 from Neutral position p0 is when (clockwise direction in Figure 22) is rotated together in a second direction, the cam surface 76 within engaging hole 75 The junction surface 66 of locking member 32 is abutted, junction surface 66 is pressed with towards radial outside.Thus, the structure of cancel system 60 of the present embodiment The rotation for releasing the countershaft 22 as caused by the engagement of ratchet 31 and locking member 32 is caused to limit, i.e. by ratchet mechanism 40 Realized by making locking member 32 depart from from ratchet 31.

In other words, can be set to for the rotating shaft 22 of little gear 18 and can be based on admittedly by the rotation control device 21 of the present embodiment The fixed state rotated to the push-down operation of the operation handle 20 of input block 41.Thus, the seat jacking equipment of the present embodiment 10 can be such that seat 1 is moved down based on seat load.

(arrestment mechanism)

Next description is located at the arrestment mechanism rotated among control device 21 of the present embodiment.

As shown in Fig. 8, Fig. 9 and Figure 13, the rotation control device 21 of the present embodiment has includes torsion disc spring main body 80c's Torsion disc spring 80, the torsion disc spring main body 80c inserts to be adapted in the state of the periphery of the rotating shaft 22 of contact little gear 18 Rotating shaft 22.Frictional force based on torsion disc spring 80 is located at this reality to the arrestment mechanism 81 that the rotating shaft 22 of little gear 18 applies brake force In applying the rotation control device 21 of example.

Specifically, as shown in Figure 10, torsion disc spring 80 is located in the rotation control device 21 of the present embodiment, positioned at pars intermedia Between the cap portion 61b and support plate 57 of part 61, support plate 57 is along the axis direction of rotating shaft 22 towards cap portion 61b.Such as Figure 13 institutes Show, in the cap portion 61b of intermediate member 61, be provided with the first junction surface 83 and the second junction surface 84, fitted by by torsion disc spring 80 Be assigned on the rotating shaft 22 of little gear 18, the first junction surface 83 and the second junction surface 84 be located at the first of the radial outside of rotating shaft 22 Spring end 80a and second spring end 80b is engaged.

Specifically, in the relative position by circumferentially promoting and compressing the first spring end 80a and second spring end 80b Put so that spring body 80c is in the state of radial expansion side is bent upwards, the torsion disc spring 80 of the present embodiment is attached to small tooth The rotating shaft 22 of wheel 8.In the rotation control device 21 of the present embodiment, the first junction surface 83 includes limitation second direction (in Figure 13 The abutment surface 83s of the circumference movement on clockwise).Second junction surface 84 includes the first spring end 80a of limitation the The abutment surface 84s of the circumference movement on one direction (counter clockwise direction in Figure 13).

In other words, the torsion disc spring 80 of the present embodiment is configured so that：Due to the first spring end 80a and second spring end The contraction of the circular gap between portion 80b and the spring body 80c that is bent upwards in radial expansion side are due to based on spring body Diameter caused by the elastic force (elastic restoring force) of 80c shrinks and contacts the periphery of rotating shaft 22.The arrestment mechanism 81 of the present embodiment The frictional force of the spring body 80c contacted with the rotating shaft 22 of little gear 8 can be set, i.e. rotating shaft 22 is put on appropriate level Brake force, because the first junction surface 83 and the second junction surface 84 are by between the first spring end 80a and second spring end 80b , can be based on elastic force and broaden it is circumferentially-spaced remain predetermined interval, so as to produce the brake force.

In the rotation control device 21 of the present embodiment, the first junction surface 83 is configured to allow for the first spring end 80a along The circumference in one direction is mobile.Additionally, the second junction surface 84 is configured to allow for second spring end 80b circumferential shiftings in a second direction It is dynamic.Thus, the rotation control device 21 of the present embodiment is configured to make the spring body 80c of torsion disc spring 80 due to torsion disc spring 80 In the rotation direction of the rotating shaft 22 of little gear 18 rotate and the first spring end 80a and second spring end 80b it is relative Position change and in radial expansion side's upward.

In other words, when the rotating shaft 22 of little gear 8 is rotated, the torsion being equipped with the state of the periphery with rotating shaft 22 contacts Disc spring 80 is based on frictional force and is rotated along the rotation direction of rotating shaft 22.Thus, the first spring end 80a and second spring end 80b It is further adapted for carrying out circumferential movement in the rotation direction of torsion disc spring 80.

Now, by using the first junction surface 83 and the second junction surface 84, the arrestment mechanism 81 of the present embodiment is configured to permit Perhaps one of the first spring end 80a and second spring end 80b carry out circumferential shifting along towards the rotation direction of torsion disc spring 80 It is dynamic, and it is mobile to limit the circumference of wherein another spring end.Thus, arrestment mechanism 81 be configured to make the first spring end 80a and Circular gap shrinks between the 80b of second spring end, and spring body 80c is bent upwards in radial expansion side, and, thus, The frictional force of the spring body 80c contacted with the rotating shaft 22 of little gear 8, the brake force decrease for putting on rotating shaft 22.

For example, as shown in figure 14, due to the driving force warp being transfused to by the input of the upper pulling process of operation handle 20 It is transferred into the rotating shaft 22 of little gear 8 by operation input transport mechanism 50, (the side counterclockwise in Figure 14 in a first direction of rotating shaft 22 To) on rotate.Thus, the torsion disc spring 80 being equipped with the state of the periphery with rotating shaft 22 contacts is based on torsion disc spring 80 and turns Frictional force between axle 22 is rotated in a first direction.

Now, by using the second attachment 84, the limitation of the arrestment mechanism 81 second spring end 80b edges of the present embodiment First direction carries out circumferential movement, and arrestment mechanism 81 is allowed than second spring end 80b closer to rotation direction rear side (second Direction side) the first spring end 80a carry out circumferential movement in the first direction.In other words, due to carrying out week in a first direction To the first mobile spring end 80a close to by the circumferential mobile second spring end 80b of limitation, so the bullet of torsion disc spring 80 Spring main body 80c is bent upwards in radial expansion side.Thus, in the rotation control device 21 of the present embodiment, due to putting on small tooth Brake force in the rotating shaft 22 of wheel 18 weakens, and can perform the upper pulling process of operation handle 20, and the operation makes by link mechanism 12 The seat 1 of supporting is smoothly moved up.

Here, as shown in Figure 13 and Figure 23, the arrestment mechanism 81 of the present embodiment has holding rod 86, when the base of torsion disc spring 80 The rotating shaft 22 of the little gear 18 rotated in torsion disc spring 80 and in second direction (clockwise direction in Figure 13 and Figure 23) it Between frictional force and when rotating in a second direction, the holding rod 86 abuts second spring end 80b.Arrestment mechanism 81 has only Moving part 87, is rotated by the push-down operation based on operation handle 20 together with the input block 41 in a second direction rotating, The retainer 87 is circumferentially moved to a position, and at the position, retainer 87 abuts holding rod 86.The brake of the present embodiment Structure 81 is configured to, when formed ratchet mechanism 40 ratchet 31 and locking member 32 engagement due to cancel system 60 operation and quilt During releasing, the operation based on holding rod 86 and retainer 87, the arrestment mechanism 81 limitation the first spring end 80a and second spring 80b relative positions in the circumferential in end change.

Specifically, the holding rod 86 of the present embodiment is axially supported with can be around the cap portion 61b located at intermediate member 61 On support shaft 88 rotate.In the present embodiment, support shaft 88 is set to be in second in the state of rotating shaft 22 is roughly parallel to It is near junction surface 84, than the second junction surface 84 closer to the position of first direction side (counter clockwise direction of Figure 13 and Figure 23) Put.The first end 86a of the side of holding rod 86 of the present embodiment is through the second junction surface 84 and extends to first direction side.The present embodiment In, holding rod 86 be based on adaptation to the elastic force counter clockwise direction in the accompanying drawings of the torsion disc spring (not shown) of support shaft 88 by with Rotating manner is biased.Thus, in the holding rod 86 in the present embodiment, it is arranged to towards the abutting table for constituting the second junction surface 84 The base end part of the first end 86a of face 84s is used as to abut the abutting part 90 of second spring end 80b.

As shown in Fig. 8, Fig. 9, Figure 23 and Figure 24, in the arrestment mechanism 81 of the present embodiment, operation input transport mechanism is constituted The e axle supporting part 53 of 50 drive rod 52, one end side structure for specifically extending towards the side of the first supporting member 23 are into also can start-stop The effect of moving part 87.As shown in figure 23, retainer 87 be configured to by rotated in a second direction together with input block 41 with It is moved to a circumferential position to limit the clockwise rotation along accompanying drawing of holding rod 86, in the circumferential position, retainer 87 the second end 86b for abutting holding rod 86.

More specifically, as shown in figure 23 and figure 24, the rotation control device 21 of the present embodiment is configured so that, according to operation The push-down operation of handle 20, when input block 41 is rotated in a second direction, default rotational angle θ x from neutral position p0, is based on The operation of cancel system 60, locking member 32 departs from ratchet 31.

In the arrestment mechanism 81 of the present embodiment, retainer 87 is configured to, and week is reached when input block 41 is circumferentially positioned in During in the preset range of rotational angle θ x, the entrance of retainer 87 can abut the state of the second end 86b of holding rod 86, be based on The rotation of input block 41, the circumference carried out in a second direction by retainer 87 is mobile, and the preset range reaches circumferential turning Dynamic angle, θ x.The rotation that holding rod 86 is configured in holding rod 86 clockwise around support shaft 88 along accompanying drawing is subject to retainer Second spring end 80b is limited by using the first end 86a for being provided with abutting part 90 in a second direction in the state of 87 limitations Circumference it is mobile.

In other words, as described above, the cancel system 60 of the present embodiment is by making locking member 32 outside towards the footpath of ratchet 31 Side shifting gradually decreases the mesh volume of ratchet 31 and locking member 32.Thus, cancel system 60 is configured to finally make sticking department Part 32 departs from ratchet 31.

The arrestment mechanism 81 of the present embodiment is configured to, and retainer 87 abuts holding rod 86 to limit guarantor during a time period The rotation of bar 86 is held, the time period is to be based on releasing machine from the ratchet 31 and the mesh volume of locking member 32 for constituting ratchet mechanism 40 The operation of structure 60 and start reduce moment until locking member 32 from ratchet 31 depart from when time period.Thus, brake Structure 81 is configured to, when by holding rod 86 limit second spring end 80b circumference in a second direction it is mobile, based on the machine of releasing The operation of structure 60 and when releasing the engagement of ratchet 31 and locking member 32, the spring body 80c of torsion disc spring 80 is in radial expansion The relative position change of the first spring end 80a and second spring end 80b is limited when side is bent upwards.

As shown in figure 15, the retainer 87 of the present embodiment is configured to, and being rotated more than by input block 41 makes locking member The 32 rotational angle θ x departed from from ratchet 31, retainer 87 is moved in circumference the position of the rotation for allowing holding rod 86.Thus, The holding rod 86 of the present embodiment is configured to by circumferentially will in a second direction move the holding rod to be rotated around support shaft 88 86 are pressed into second spring end 80b to allow 80b circumferences in a second direction in second spring end mobile.

In other words, when the operation of the engagement based on cancel system 60 of ratchet 31 and locking member 32 is released from, ratchet 31 Mesh volume with locking member 32 is reduced, and, thus, the rotating shaft 22 of little gear 18 is suitable to be based on what is supported by link mechanism 12 The load of seat 1 is rotated in a second direction,.Thus, the base of torsion disc spring 80 being equipped with the state of the periphery with rotating shaft 22 contacts Frictional force between torsion disc spring 80 and rotating shaft 22 is rotated in a second direction,.

Now, in the arrestment mechanism 81 of the present embodiment, by with input block 41 in a second direction together with the stop that rotates The rotation (referring to Figure 23) of the limitation holding rod 86 of part 87 abuts the second spring end 80b of holding rod 86 to limit in the circumferential Movement.

In other words, when the operation of the engagement based on cancel system 60 of ratchet 31 and locking member 32 is released from, this implementation The relative position of the limitation of the arrestment mechanism 81 first spring end 80a and second spring end 80b of example changes, and maintains and rotating shaft 22 The internal diameter of the spring body 80c of contact, and, thus, the brake force based on frictional force is applied to rotating shaft 22, should without weakening Brake force.Thus, the rotation control device 21 of the present embodiment is configured to release ratchet when the push-down operation by operation handle 20 When the rotation of mechanism 40 is limited, the big load of the side of little gear 18 engaged from the input gear 16 with link mechanism 12 is not applied Add to the ratchet 31 and locking member 32 for constituting the first and second meshing parts.

Then, the arrestment mechanism 81 of the present embodiment is configured so that second spring end 80b is in such pattern along Two directions carry out circumferential movement, i.e. in this mode, and being rotated in a second direction, to exceed by input block 41 makes locking member 32 Limit to promote by the rotation to holding rod 86 that retainer 87 is caused from the rotational angle θ x that ratchet 31 departs from, and releasing Holding rod 86 (refers to Figure 15).

In other words, limited by the first junction surface 83 because second spring end 80b is close carries out circumferential shifting in a second direction The first dynamic spring end 80a, so the spring body 80c of torsion disc spring 80 is bent upwards in radial expansion side.Thus, this reality Apply in the rotation control device 21 of example, because the brake force applied to the rotating shaft 22 of little gear 18 weakens, can make by joining beam machine Successfully (and upward) is mobile downwards for the seat 1 of the support of structure 12.

In the arrestment mechanism 81 of the present embodiment, it is allowed to which second spring end 80b carries out week in a second direction in a period To movement, until the retainer 87 that the push-down operation based on operation handle 20 is rotated together with input block 41 in a second direction Untill being moved to the circumferential position that retainer 87 abuts the end 86b of holding rod 86 second.

In other words, when operation handle 20 is located near neutral position P0, the arrestment mechanism 81 of the present embodiment is configured to, by (regardless of whether the rotation direction how) is rotated along the rotation direction of the rotating shaft 22 of little gear 18 in torsion disc spring 80, the first spring The relative position of end 80a and second spring end 80b changes, and torsion disc spring 80 spring body 80c in radial expansion Side is bent upwards.Thus, the rotation control device 21 of the present embodiment is configured to, after being operated to operation handle, little gear 18 rotating shaft 22 can turn to the position of the ratchet 31 and the correct engagement of locking member 32 that constitute ratchet mechanism 40.

According to above-mentioned the present embodiment, following effect can be obtained.

(1) the rotation control device 21 of seat jacking equipment 10 has input block 41 and cancel system 60, input block 41 are connected to operation handle 20 is rotated with the rotating shaft 22 around little gear 18, and cancel system 60 is by input block 41 from neutral position P0's rotates to release the engagement of the ratchet 31 and locking member 32 that constitute ratchet mechanism 40.Rotate control device 21 also have to Rotating shaft 22 applies the arrestment mechanism 81 of brake force.Arrestment mechanism 81 has had the torsion disc spring 80 that spring members are acted on, and it is hit by a bullet Spring main body 80c is adapted to rotating shaft 22 in the state of the periphery of rotating shaft 22 is contacted with based on elastic force, and the first spring end 80a and Radial outsides of the second spring end 80b located at rotating shaft 22.Arrestment mechanism 81 is configured to make torsion disc spring 80 along rotating shaft 22 Rotation direction is rotated, and, thus, the relative position of the first spring end 80a and second spring end 80b changes, and spring Main body 80c is bent upwards in radial expansion side.Arrestment mechanism 81 is configured to, when the operation based on cancel system 60 releases ratchet 31 During engagement with locking member 32, when direction bends, the first spring is radially expanded in the spring body 80c of torsion disc spring 80 The variation in the relative position radial expansion direction of end 80a and second spring end 80b is limited.

In other words, in the state of spring body 80c is based on resilient contact rotating shaft 22, it is adapted to small by torsion disc spring 80 On the rotating shaft 22 of gear 18, brake force to rotating shaft 22 can be applied based on frictional force.Based on torsion disc spring 80 and rotating shaft 22 it Between frictional force, torsion disc spring 80 along rotating shaft 22 rotation direction rotate.According to this construction, when the operation based on operation handle 20 It is input into during so that the rotating shaft 22 of little gear 18 being rotated, because torsion disc spring 80 bends and apply to torsion in radial expansion direction The brake force of disc spring 80 weakens, and the operation of operation handle 20 input smoothly can be performed.Operation is being carried out to operation handle The rotating shaft 22 of little gear 18 can be made to turn to the position of the ratchet 31 and the correct engagement of locking member 32 that constitute ratchet mechanism 40 afterwards Put.

When the operation of the engagement based on cancel system 60 of ratchet 31 and locking member 32 is released from, the first spring end The relative position of 80a and second spring end 80b is limited in the variation that spring body 80c is radially expanded when direction bends, and And, thus, it is possible to the brake force of the frictional force based on torsion disc spring 80 is applied to the rotating shaft 22 of little gear 18, should without weakening Brake force.Thus, it is possible to ensure that is produced from the side of little gear 18 engaged with the input gear 16 of link mechanism 12 when engagement is released from Raw big load does not apply to ratchet 31 and locking member 32.Required for therefore, it can to make the solution division operation of ratchet mechanism 40 Operating physical force reduces to improve availability.It is additionally possible to suppress releasing the generation of the sound to ensure the silence of height.Thus, may be used More superior operation comfort is realized with than relevant art.

Additionally, according to above-mentioned construction, the Frotteurism caused by the rotating shaft 22 of little gear 18 is rotated can be suppressed and become The change in friction force for change, being produced due to the transition from static friction state to dynamic friction regime.Thus, by that will stablize Braking friction apply to rotating shaft 22, it can be ensured that seat 1 will not because of ratchet mechanism 40 rotation limitation releasing behaviour Drastically moved down due to seat load during work.

(2) according to the push-down operation of operation handle 20, it is rotated in a second direction, from neutral position p0 by input block 41, Cancel system 60 releases the engagement between the ratchet 31 and locking member 32 that constitute ratchet mechanism 40.Arrestment mechanism 81 has first Junction surface 83 and holding rod 86, when torsion disc spring 80, when second direction is rotated, the first junction surface 83 limits the first spring end The circumference of 80a is mobile, holding rod 86 axially supported with can be rotated around support shaft 88 and in torsion disc spring 80 in a second direction Second spring end 80b is abutted during rotation.Additionally, arrestment mechanism 81 has retainer 87, when ratchet 31 and locking member 32 Operation of the engagement based on cancel system 60 and when being released from, by retainer 87 and input block 41 in a second direction together with rotate With the circumferential position being moved to residing for the abutting holding rod 86 of retainer 87, retainer 87 limits the rotation of holding rod 86.Holding rod 86 are configured to be in the circumference of limitation second spring end 80b when rotating confined state around support shaft 88 when holding rod 86 It is mobile, and allow the by the way that holding rod 86 is pressed into second spring end 80b when it is allowed to around the rotation of support shaft 88 The circumference of two spring end 80b is mobile.Retainer 87 is configured to be rotated in a second direction, to exceed by input block 41 make locking The angle of the rotational angle θ x that part 32 departs from from ratchet 31 and be moved to allow holding rod 86 rotate circumferential position.

According to this construction, in the case where input block 41 is rotated in a second direction, from neutral position p0, only when based on solution When the engagement of ratchet 31 and locking member 32 is released except the operation of mechanism 60, the first spring end 80a and can be just limited The change of the relative position of two spring end 80b, when the relative position changes, spring body 80c radially expands direction Bending.In addition, when the engagement is released, can change the first spring end 80a and the relative position of second spring end 80b Become so that due to second spring end 80b close to the first mobile restricted spring end 80a of circumference in a second direction, turn round The spring body 80c of power disc spring 80 radially expands direction bending.Thus, by the push-down operation of operation handle 20, Ke Yishun Profit releases the rotation limitation of ratchet mechanism 40.

(3) arrestment mechanism 81 has operation input transport mechanism 50, and the operation input transport mechanism 50 passes through input unit Therefrom property position p0 is rotated in a first direction to be input into operation handle 20 upper pulling process of the part 41 based on operation handle 20 Driving force is sent to the rotating shaft 22 of little gear 18.Arrestment mechanism 81 has the second junction surface 84, when torsion disc spring 80 is along first party During to rotating, the second junction surface 84 limits second spring end 80b movements circumferentially.First junction surface 83 is configured to work as torsion Disc spring 80 allows the first spring end 80a movements circumferentially when being rotated in a first direction.

According to this construction, the seat 1 supported by link mechanism 12 can be made to be based on the effect of ratchet mechanism 40 and move upwards It is dynamic, the rotation of the first direction along when ratchet mechanism 40 allows the rotating shaft 22 of little gear 18 to be moved along seat 1, and based on behaviour The rotation of the second direction along when the effect limitation rotating shaft 22 for making input transport mechanism 50 is moved down along seat 1.Now, the first He The relative position change of second spring end 80a, 80b is caused：Because torsion disc spring 80 is based on the rotating shaft 22 of little gear 18 and turns round Frictional force between power disc spring 80 is rotated in a first direction and the first spring end 80a is mobile close to circumference in a second direction Limited second spring end 80b, the spring body 80c of torsion disc spring 80 are bent upwards in radial expansion side.Thus, it is possible to hold Exercise upper pulling process that seat 1 is successfully moved up, to operation handle 20.

(4) operation input transport mechanism 50 has the ratchet 51 rotated together with the rotating shaft 22 of little gear 18, also with drive Lever 52, the drive rod 52 includes the engaging piece 52a engaged with ratchet 51, and is rotated together with input block 41.Drive rod 52 are configured to, and when input block 41 is rotated in a first direction, the torsion of adaptation to e axle supporting part 53 are based on due to drive rod 52 The elastic force of disc spring 54 and rotationally biased, engaging piece 52a engages to transmit driving force to ratchet 51 with ratchet 51.Additionally, driving Lever 52 is configured to, due to when input block 41 is rotated in a second direction, drive rod 52 overcome torsion disc spring 54 bias force and Rotate, engaging piece 52a departs from from ratchet 51.Arrestment mechanism 81 is configured to make 53 retainers 87 of e axle supporting part of drive rod 52 Effect.

According to this construction, by repeating the upper pulling process of handle 20, can move up seat 1.By making drive The e axle supporting part 53 of lever 52 also plays retainer 87, it is possible to achieve the simplification of construction.

Above-described embodiment can be improved by the following manner.

In above-described embodiment, the side frame 13 using point of contact X2 and seat 1 is (fan-shaped as the input gear 16 of center of rotation Gear) on the rear joining beam 11b of link mechanism 12.However, the construction not limited to this of input gear 16, can arbitrarily be become More.For example, input gear 16 on preceding joining beam 11a, and can be not necessarily sector gear.Input gear 16 and linkage part 11 shared centers of rotation can be the tie point (X1 or X2) being connected with side frame 13 of seat side connection member effect, also may be used Be floor side connection member act on the tie point (X3 or X4) being connected with base component 14.

In above-described embodiment, linkage part 11 constitutes well-known parallel linkage mechanism.However, not limited to this structure Make, as long as and the rotation of little gear 18 that seat 1 is based on being engaged with input gear 16 is carried out raising and lowering operation, The type of link mechanism 12 just can be changed arbitrarily, including the quantity of linkage part 11 is also such.

In above-described embodiment, operation handle 20 is directly fixed to input block 41.By the rotating operation of operation handle 20, Input block 41 is rotated together with operation handle 20.However, not limited to this are constructed, it is for instance possible to use by gear or similar Component makes operation handle 20 be linked to the construction of input block 41.Operation handle 20 and input block 41 are not necessarily located at same axle On line.

Additionally, in above-described embodiment, using such construction, i.e. make seat 1 upward by pulling process in operation handle 20 It is mobile, and limited by the rotation that push-down operation releases ratchet mechanism 40.However, not limited to this are constructed, can also be using so Construction, i.e. by operation handle 20 pulling process release ratchet mechanism 40, and by push-down operation make seat 1 upwards move It is dynamic.

In above-described embodiment, by the rotation in a second direction of input block 41, cancel system 60 releases ratchet 31 and lock Determine the engagement of part 32, ratchet 31 and locking member 32 are constituted as rotation limiting mechanism as the first and second meshing parts Ratchet mechanism 40.Arrestment mechanism 81 has holding rod 86 and retainer 87, is kept when torsion disc spring 80 is rotated in a second direction, Bar 86 abuts second spring end 80b, when the operation of the engagement based on cancel system 60 of ratchet 31 and locking member 32 is released from When retainer 87 limit holding rod 86 rotation.

However, not limited to this are constructed, and a cancel system is provided with, even if input block 41 is rotated in a first direction, Cancel system can also release the engagement for constituting the first and second meshing parts for rotating limiting mechanism.The arrestment mechanism can have Holding rod and retainer, the holding rod are configured to abut the first spring end 80a when torsion disc spring 80 is rotated in a first direction, When the operation of the engagement based on cancel system of the first and second meshing parts is released from, the retainer limits turning for the holding rod It is dynamic.Thus, it is possible to the Structural application of ratchet mechanism 40 will not wherein be used in the rotation limiting mechanism.

In above-described embodiment, the torsion disc spring 80 with disc spring main body 80s is used as the spring members of arrestment mechanism 81. In the torsion disc spring 80, spring body 80c is due between the circumference between the first spring end 80a and second spring end 80b It is bent upwards every and radial expansion side.However, not limited to this are constructed, and can be using such construction, i.e. wherein, make Torsion disc spring is used, in the torsion disc spring, spring body 80c is due between the first spring end 80a and second spring end 80b Circumferentially-spaced broadening and radially expand direction bending.Now, the abutting table in the first junction surface 83 and the second junction surface 84 Face 83s and 84s and holding rod 86 (adjacency section 90) are in face of direction in contrast with the previous embodiment.As long as spring body is being based on Elastic force and be adapted to rotating shaft 22 in the state of being contacted with the periphery of rotating shaft 22, and on the radial outside of rotating shaft 22 first and second The relative position of spring end changes so that spring body radially expands direction bending, it is possible to using such construction, i.e. Using band just like C-spring main body or other spring members of similar component in the construction.

Rotating shaft 22 is not necessarily integrally formed with little gear 18.Additionally, for example, rotating shaft (rotating shaft for such as being linked by gear) Not necessarily it is coaxially disposed with little gear.Operation input transport mechanism, the cancel system for releasing the engagement of the first and second meshing parts And the construction of similar means can also be changed arbitrarily.

The seat jacking equipment of the one side according to the disclosure is preferably included：Little gear, the little gear and connection The input gear engagement of linkage, the link mechanism makes seat carry out raising and lowering operation；And rotate control device, institute State rotate control device control little gear rotation, wherein it is described rotate control device include with little gear synchronous axial system turn Axle, rotation limiting mechanism, input block, cancel system, and arrestment mechanism, the rotation limiting mechanism are included together with rotating shaft The first meshing part for rotating and the second meshing part that axis of rotation is limited by being engaged with the first meshing part, it is described defeated Enter part and be connected to operation handle to rotate around the axis, the cancel system by the rotation from neutral position of input block with The engagement between the first and second meshing parts is released, the arrestment mechanism applies brake force in rotating shaft, wherein, the arrestment mechanism With spring members, in the spring members, spring body be adapted in the state of being contacted with rotating shaft periphery based on elastic force to Rotating shaft, and radial outside in rotating shaft is provided with the first and second spring ends, wherein because spring members are along the rotation of rotating shaft The rotation in direction, the relative position of the first and second spring ends changes and spring body radially expands direction bending, and And wherein, the arrestment mechanism is configured to, when the operation based on cancel system releases the engagement of the first and second meshing parts When, cause spring body to radially expand direction bending, the first and second spring ends relative position variation and limited.

Therefore, spring body be based on elastic force and in the state of contact with rotating shaft periphery, by spring members be adapted to turn Axle, can be applied to rotating shaft brake force based on frictional force.Based on the frictional force between spring members and rotating shaft, spring members edge The rotation direction of rotating shaft is rotated.Therefore, according to above-mentioned construction, when axis of rotation is made based on the operation input to operation handle, The brake force decrease that direction bent and put on spring members can be radially expanded due to spring members, and successfully to behaviour That makees handle carries out operation input.Axis of rotation to composition can be made to rotate limiting mechanism after being operated to operation handle The first and second meshing part correct engagements position.

When the operation of the engagement based on cancel system of the first and second meshing parts is released from, spring members can be made along footpath Variations bent to propagation direction, the first and second spring end relative positions are limited, and therefore, it can make based on spring The brake force of part frictional force applies to rotating shaft, without weakening the brake force.Thus, it is possible to ensure from the input with link mechanism The big load of the little gear side of gear engagement is not applied to the first and second meshing parts in engagement releasing.Therefore, it can Operating physical force necessary to the solution division operation of rotation limiting mechanism is set to reduce to improve availability.It is additionally possible to suppress releasing the sound Generation ensureing the silence of height.Thus, it is possible to realize more superior operation comfort than relevant art.

In addition, according to above-mentioned construction, the Frotteurism change that can suppress to be caused by axis of rotation, i.e. from static friction state The change in friction force produced to the transition of dynamic friction regime.Thus, apply to rotating shaft by by the brake force of stabilization, can be with Ensure that seat will not drastically be moved down during the solution division operation of limiting mechanism is rotated because of seat load.

In the seat jacking equipment of this aspect according to the disclosure, it is preferable that arrestment mechanism include the first junction surface, Holding rod and retainer, when spring members are rotated along axis of rotation direction, the first junction surface limits the week of the first spring end To movement, holding rod is axially supported to be abutted around support shaft rotation and when spring members are rotated along axis of rotation direction Second spring end, when the operation of the engagement based on cancel system of the first and second meshing parts is released from, by stop Part is rotated together with input block to be moved to the circumferential position that retainer abuts holding rod, and retainer limits turning for holding rod Dynamic, holding rod is configured to when holding rod is in the confined state of rotation around support shaft, the week of limitation second spring end To movement, and it is configured to be pressed into second spring end to rotate by by holding rod when the rotation around support shaft is allowed to, from And allow the circumference of second spring end mobile, and retainer is configured to, and being rotated more than by input block makes the second engagement The rotational angle that part departs from from the first meshing part, retainer is moved to the circumferential position for allowing holding rod to rotate.

According to this construction, only when the operation that the first and second meshing parts are based on cancel system is released from, just can be with Make to cause the spring body of spring members to radially expand direction bending, the first and second spring end relative positions radially The variation of propagation direction is limited.In addition, when the engagement is released from, the relative position of the first and second spring ends can be made Change so that confined close to movement circumferentially due to carrying out circumferential mobile second spring end along axis of rotation direction First spring end, spring body radially expands direction bending.Thus, it is possible to make operation handle smooth operation to release rotation The rotation limitation of limiting mechanism.

Preferably, in the seat jacking equipment of this aspect according to the disclosure, also including operation input transport mechanism, Rotation of the operation input transport mechanism by input block from neutral position in the first direction will be input into the drive to operation handle Power is sent to rotating shaft, it is preferable that the operation input transport mechanism is ratchet mechanism, and the ratchet mechanism limits rotating shaft along seat The rotation of the second direction along when moving down, while the rotation of the first direction along when allowing rotating shaft to be moved along seat, preferably Ground, the cancel system is released by turning that ratchet mechanism is caused by input block from neutral position rotation in a second direction The rotation limitation of axle, and preferably, the arrestment mechanism includes the first junction surface, holding rod and the second junction surface, and first connects Conjunction portion limits the circumference movement of the first spring end when spring members are rotated in a second direction, and when spring members are along first Direction allows the circumference of the first spring end mobile when rotating, when spring members are rotated in a second direction, holding rod abuts the Two spring ends, and when spring members are rotated in a first direction, the circumferential shifting of the second junction surface limitation second spring end It is dynamic.

According to this construction, it is input into by performing the operation for being rotated in a second direction, input block in operation handle, can To release the rotation limitation of rotating shaft so that seat is moved down.The function of the ratchet mechanism of limiting mechanism is rotated based on composition and is based on The function of input transport mechanism is operated, input block is rotated in a first direction by performing operation input in operation handle, Can make to be moved on the seat supported by link mechanism.In addition, now, because spring members are based between rotating shaft and spring members Frictional force rotates radial expansion direction, and due to the first spring end close to circumference movement in the first direction confined the Two spring ends, the relative position of the first and second spring ends is changed in such a way that spring body radially expands direction bending. Thus, it is possible to run operation handle so that seat smoothly upper shifting.

In the seat jacking equipment of this aspect according to the disclosure, it is preferable that operation input transport mechanism include with The ratchet that rotating shaft is rotated together, and drive rod, the drive rod include the engaging piece that is engaged with ratchet, and with input block one Rise and rotate, it is preferable that the drive rod is configured so that, when input block is rotated in a first direction, because drive rod is based on The bias force of bias component and rotationally biased around e axle supporting part so that engaging piece is engaged with ratchet is sent to by driving force Ratchet, and the drive rod is configured so that, when input block is rotated in a second direction, because drive rod overcomes bias force Rotated around e axle supporting part, engaging piece departs from ratchet, and preferably, arrestment mechanism is configured to make the e axle supporting part of drive rod to rise The effect of retainer.

According to this construction, can be by repeating causing input block to be rotated in a first direction and causing defeated to operation handle Enter the operation of part reverts to neutral position, and make to be moved on seat.Retainer is also functioned to by making the e axle supporting part of drive rod Effect, it is possible to achieve the simplification of construction.

In the seat jacking equipment of this aspect according to the disclosure, spring members are preferably torsion disc spring.

According to the construction, the spring master of spring members can be made by changing the relative position of the first and second spring ends Body radially expands direction bending.By with spiral spring main body, can easily set suitable amount of bow.

According to this aspect of the disclosure, it is possible to achieve better than the operation comfort of prior art.

Principle of the invention, preferred embodiment and operator scheme are described in the foregoing specification.However, this hair The bright specific embodiment for being not limited to have revealed that for being intended to protection.And, embodiment described herein be considered as it is exemplary and It is nonrestrictive.Without departing from the spirit of the invention, other people can make variations and modifications and use equivalent. Thus, particularly point out, fall with the similar modification of spirit of the invention and protection domain as defined by the appended claims, change and Equivalent all expections are included in this.

Claims (5)

1. a kind of seat jacking equipment, including：

Little gear, the little gear is engaged with the input gear of link mechanism, the link mechanism make seat risen and under Drop operation；And

Control device is rotated, the rotation control device controls the rotation of the little gear,

Characterized in that, the rotation control device includes

Rotating shaft, the rotating shaft and the little gear synchronous axial system,

Rotate limiting mechanism, the rotation limiting mechanism include with the first meshing part of the axis of rotation and by with institute The engagement of the first meshing part is stated to limit the second meshing part of the axis of rotation,

Input block, the input block is attached to operation handle with around the axis of rotation,

Cancel system, the cancel system is by the input block from the rotation of neutral position releasing first engaging piece The engagement of part and the second meshing part, and

Arrestment mechanism, the arrestment mechanism applies brake force to the rotating shaft,

Wherein, the arrestment mechanism has spring members, in the spring members, spring body based on elastic force with it is described It is adapted in the state of the periphery contact of rotating shaft to the rotating shaft, the first spring end and second spring end are located at the rotating shaft Radial outside, wherein, because the spring members are rotated in the rotation direction of the rotating shaft, first spring end and institute The relative position change of second spring end is stated, and the spring body is radially expanded direction and is bent, and

Wherein, the arrestment mechanism is configured so that：When first meshing part and the engagement base of second meshing part It is making that the spring body bends along the radial expansion direction, described first when the operation of the cancel system is released from The relative position of spring end and the second spring end changes and is limited.

2. seat jacking equipment according to claim 1,

Wherein, the arrestment mechanism includes

First junction surface, when the spring members are rotated along the rotation direction of the rotating shaft, first junction surface limits institute The circumference for stating the first spring end is mobile,

Holding rod, the holding rod is axially supported to be rotated around support shaft and in the spring members around the rotating shaft Rotation direction abuts the second spring end when rotating, and

Retainer, is solved in the operation of the engagement based on the cancel system of first meshing part and the second meshing part Except when, rotate to be moved to the week that the retainer abuts the holding rod together with the input block by the retainer To position, the retainer limits the rotation of the holding rod,

Wherein, the holding rod is configured to, and when rotation confined state of the holding rod around the support shaft, limits institute The circumference for stating second spring end is mobile, and when the holding rod is allowed to around the rotation of the support shaft by by the guarantor Hold bar and be pressed into the second spring end to rotate, so that allow the circumference of the second spring end mobile, and

Wherein, the retainer is configured to, and being rotated more than by the input block makes second meshing part from described The rotational angle that one meshing part departs from, the retainer is moved to the circumferential position of the rotation for allowing the holding rod.

3. seat jacking equipment according to claim 2, also includes：

Operation input transport mechanism, the operation input transport mechanism is by the input block from the neutral position along first Direction rotates to be input into the driving force of the operation handle and is sent to the rotating shaft,

Wherein, the rotation limiting mechanism is ratchet mechanism, when the ratchet mechanism limitation rotating shaft is moved down along the seat Along second direction rotation, while the rotation of the first direction along when allowing the rotating shaft to move on the seat,

Wherein, rotated along the second direction from the neutral position by the input block, the cancel system release by The rotation to the rotating shaft that the ratchet mechanism is caused is limited, and

Wherein, the arrestment mechanism includes

First junction surface, first junction surface limits described when the spring members are rotated along the second direction The circumference of one spring end is mobile, and first spring terminal is allowed when the spring members are rotated along the first direction The circumference in portion is mobile,

The holding rod, the holding rod abuts the second spring end when the spring members are rotated along the second direction Portion, and

Second junction surface, second junction surface limits second bullet when the spring members are rotated along the first direction The circumference of spring end is mobile.

4. seat jacking equipment according to claim 3,

Wherein, the operation input transport mechanism includes

Ratchet, the ratchet is rotated together with the rotating shaft, and

Drive rod, the drive rod includes the engaging piece engaged with the ratchet, and is rotated together with the input block,

Wherein, the drive rod is configured so that：When the input block is rotated in a first direction, due to the drive rod base In the bias force of bias component rotationally biased around the e axle supporting part so that the engaging piece engaged with the ratchet with Driving force is sent to the ratchet, and the drive rod is configured so that：It is rotated in a second direction, in the input block When overcome the bias force to be rotated around the e axle supporting part due to the drive rod, the engaging piece departs from the ratchet, with And

Wherein, the arrestment mechanism is configured to make the e axle supporting part of the drive rod to play the retainer.

5. seat jacking equipment according to claim 1, wherein, the spring members are torsion disc spring.