CN209191735U - The compound ratchet wheel of angle adjustor and angle adjustor - Google Patents
The compound ratchet wheel of angle adjustor and angle adjustor Download PDFInfo
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- CN209191735U CN209191735U CN201822067820.9U CN201822067820U CN209191735U CN 209191735 U CN209191735 U CN 209191735U CN 201822067820 U CN201822067820 U CN 201822067820U CN 209191735 U CN209191735 U CN 209191735U
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 76
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- 230000006870 function Effects 0.000 description 3
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The utility model discloses the compound ratchet wheel of a kind of angle adjustor and angle adjustor, compound ratchet wheel includes the internal gear to form angle adjustor continous way adjustment portion, with the ratchet for forming discontinuous adjustment portion, both the internal gear and the ratchet are opposite, and be welded and fixed axially and or radially, form the compound ratchet wheel.Internal gear and ratchet are welded and fixed the program, realize the integrated of angle adjustor continous way and discontinuous regulatory function.Moreover, first internal tooth and ratchet are welded and fixed to form compound ratchet wheel, then other components of continous way adjustment portion and discontinuous adjustment portion are assembled together with compound ratchet wheel, form angle adjustor, is easy to guarantee the precision of assembly, it is ensured that concentricity.Meanwhile internal gear and ratchet welding are compound, not will increase the radial dimension of compound ratchet wheel, the outer diameter of the integral type angle adjustor of formation is smaller.
Description
Technical field
The utility model relates to the technical field of the seat, and in particular to the compound ratchet wheel of a kind of angle adjustor and angle adjustor.
Background technique
Seat angle adjustor is used to connect the seat and the chair back of automotive seat, to enhance the comfort of seat.Passenger can lead to
The angle of seat angle adjustor adjusting back is crossed to optimum position, the seating angle for obtaining the most comfortable and being most accustomed to.For driver
For, the manipulation such as the best visual field can be obtained by the angle of adjusting back, and is easy to manipulation direction disk, pedal and gear lever
Part.
Seat angle adjustor is broadly divided into two major classes at present: one kind is the discontinuous tune using ratchet and pawl arrangement principle
Angle device.Another kind of is the continous way angle adjustor of planet tooth plate transmission principle.
As shown in FIG. 1, FIG. 1 is a kind of schematic diagrames of continous way angle adjustor in the prior art.It can refer to patent
CN101243922 understands, which includes ratchet 26, sliding block 11, unlock cam 9, wedge block 12, reset spring 13, hollow
Axis 14, coulisse 15, the inner ring of ratchet 26 form interior ratchet segment 81 and smooth section 82, and coulisse 15 is fixed with the chair back.Sliding block 11
It can radially be slided in coulisse 15, so that the sliding block ratchet of 11 periphery of sliding block can be with the interior ratchet segment 81 of 26 inner ring of ratchet
Engagement, coulisse 15 and ratchet 26 cannot rotate relative to each other, so that the angle of the chair back and seat is locked, when sliding block ratchet is radially contracted
And when being disengaged from interior ratchet segment 81, angle adjustment can be carried out, when sliding block ratchet is opposite with smooth section 82, chair may be implemented
The fast folding of back.
Referring to FIG. 2, Fig. 2 is a kind of schematic diagram of discontinuous angle adjustor in the prior art.It can refer to patent
CN101941389l understands that the angle adjustor includes driving part 2, wedging torsional spring 3, cover board 4, wedge block 5, eccentric wheel 6, external tooth
Plate 7, internal gear 25, internal gear 25 are equipped with ring gear 83 and the middle part shaft shoulder 84.Outer tooth plate 7 has outer gear ring, outer gear ring and internal tooth
After the ring gear 83 of plate 25 engages, radial disbalance region is formed between the middle part shaft shoulder 84 and the bearing holder (housing, cover) centre bore of outer tooth plate 7.
Eccentric wheel 6 and wedge block 5, the two are placed in the radial disbalance region, and the wedging under the effect of wedging torsional spring 3.Need rotation seat
When the angle of back-rest of chair, passenger applies driving torque to driving part 2, eccentric wheel 6 or wedge block 5 is driven, thus using few
The working principle of differential teeth planetary gear drive has been reliably achieved internal gear 25 relative to the rotation of outer tooth plate 7, i.e. backrest
Continuous angular adjustment.After angular adjustment, the peripheral force that wedging torsional spring 3 applies acts on eccentric wheel 6 and wedge block 5,6 He of eccentric wheel
After wedge block 5 offsets with the middle part shaft shoulder 84 of the bearing holder (housing, cover) center hole wall of outer tooth plate 7 and internal gear 25 respectively, gap can disappear
It removes, i.e., eccentric wheel 6 and wedge block 5 etc. form gap relief member.The angular adjustment and gap cancellation of this fining are big
The comfort of seat is improved greatly.
Currently, can continuously adjust and realize the quick of backrest for the adjusting advantage of in summary two kinds of angle adjustors
It folds, exists and continous way is adjusted into the angle adjustor being combined with discontinuous adjusting.
Referring to FIG. 3, Fig. 3 is a kind of schematic diagram of bench seat with split back angle adjustor in the prior art.
In utility model patent CN104284801, a kind of seat angle adjustor is disclosed, as shown in Figure 3.It is combined type circle
Dish configuration is equipped with gear plate 20, movable plate 21, fixed plate 22, pawl 24.Gear plate 20 is equipped with export-oriented canine tooth 201 and introversion is small
Tooth 202, export-oriented canine tooth 201 herein are the function for the structure China and foreign countries tooth plate for realizing that above-mentioned continous way is adjusted, fixed plate 22 it is interior
The interior of gear ring cooperates to canine tooth 212, interior to cooperate to canine tooth 202 with pawl 24, interior to be equivalent to above-mentioned discontinuous make to canine tooth 202
The interior ratchet segment of ratchet in the structure of adjusting.
Specifically, gear plate 20 and fixed plate 22 are operatively coupled by pawl 24, the pawl 24 selectively with gear plate
20 engage.Eccentric element is operatively coupled between gear plate 20 and movable plate 21, so that the introversion on movable plate 21
Canine tooth 212 is combined in a manner of engagement with the export-oriented canine tooth 201 on gear plate 20.When pawl 24 is separated with gear plate 20, movably
Plate 21 is rotated with gear plate 20 together opposing fixed plate 22 so as to canine tooth 212 and export-oriented canine tooth in backrest rotation change
Junction between 201, and movable plate 21 is caused to wave rotary motion relative between gear plate 20 and fixed plate 22, with
Rotate backrest between multiple reclined seating positions.
That is, continous way angle adjustor and discontinuous angle adjustor are cascaded by gear plate 20, while realizing seat
Backrest is fine-tuned with respect to Chain cushion and backrest is quickly adjusted to the function of being easily accessible position or fold flat position.
However, the combination of above scheme, is combined into gear plate 20 for outer tooth plate and ratchet, gear plate 20 is formed simultaneously
There are features, the parts such as export-oriented canine tooth 201, introversive small tooth 202, axle center hole 203, planing surface 204 to use fine manufacture difficulty
Greatly, the part development cycle is long, at high cost.And axle center blind hole 211, part manufacturing are had to the movable plate 21 of canine tooth 212 with interior
Craftsmanship is poor, and 211 domestic demand Fitted Axles bearing sleeve 23 of axle center blind hole, and the dimensional accuracy of component is relatively difficult to guarantee after press fitting, and the later period without
Method is reprocessed.
In addition, the export-oriented canine tooth 201 of the gear plate 20 is located at the radially outer edge of introversive small tooth 202, meeting fine requirement
Under, the tooth plate diameter ring gear of continous way angle adjustor part is larger, causes the entire outer diameter of integral type angle adjustor larger.
Utility model content
The compound ratchet wheel of angle adjustor provided by the utility model, the internal gear including forming angle adjustor continous way adjustment portion,
With the ratchet for forming discontinuous adjustment portion, the internal gear is opposite with the ratchet, and welding is solid axially and or radially
It is fixed, form the compound ratchet wheel.
Optionally, the ratchet is processed to form annular element, when the ratchet is opposite with the internal gear, on axial cross section
Projection be at least partly overlapped.
Optionally, the internal gear is formed after the first ring gear and fine by half fine of plate and is protruded in first ring gear
Tooth plate main body, the ring gear of the internal gear are formed in the inner ring of first ring gear；The outer rim turning of the internal gear main body
Form ring-shaped step, annular step surface；
The ratchet is formed by plate fine, and half fine of plate forms the plate of the second ring gear and prominent second ring gear
Body, plate body described in fine form annular solid；The interior ratchet segment of the ratchet is formed in second ring gear, the end of the annular solid
Face is bonded welding with the annular step surface, and/or, the inner wall of the annular solid is bonded weldering with the periphery wall of the ring-shaped step
It connects；
The annular solid is at least partly overlapped with projection of the ring-shaped step on axial cross section.
Optionally, the middle part fine of the internal gear main body forms the middle part axis cooperated with the outer tooth plate of continous way adjustment portion
Shoulder, the middle part shaft shoulder protrude from the internal gear main body.
Optionally, the inside turning of the internal gear main body forms pit, and the pit, which is formed, avoids the discontinuous tune
The avoid holes of section portion inner mount.
Optionally, the ratchet is formed by plate fine, and half fine of plate forms the plate body of outer ring and the prominent outer ring,
The plate body fine forms the second ring gear of the ratchet, and the second ring gear forms the interior ratchet segment of the ratchet；
The internal gear is formed after the first ring gear and fine the internal gear master for protruding first ring gear by half fine of plate
Body, the ring gear of the internal gear are formed in the inner ring of first ring gear；
The outer ring is bonded and is welded and fixed with first ring gear；
The outer ring is at least partly overlapped with projection of the internal gear main body on axial cross section.
Optionally, interconnecting piece, and the internal gear, the ratchet are equipped between the internal gear and the outer rim of the ratchet
It is respectively welded with the interconnecting piece, realizes being welded and fixed for the internal gear and the ratchet.
Optionally, the internal gear is formed after the first ring gear and fine by half fine of plate and is protruded in first ring gear
Tooth plate main body, the ring gear of the internal gear are formed in the inner ring of first ring gear；
The ratchet is formed the plate body of the second ring gear and prominent second ring gear, plate body described in fine by half fine of plate
Form annular solid；The interior ratchet segment of the ratchet is formed in second ring gear；
The annular solid and the internal gear main body are opposite, and the interconnecting piece is set to first ring gear and second tooth
Between ring；The outer rim turning of the internal gear main body forms the ring-shaped step, annular step surface；The annular step surface and institute
The periphery wall of the end face fitting and/or the ring-shaped step of stating annular solid is bonded with the inner wall of the annular solid, the annular solid
It is at least partly overlapped with projection of the ring-shaped step on axial cross section.
The utility model also provides a kind of angle adjustor, the compound ratchet wheel including angle adjustor described in any of the above embodiments.
Optionally, the angle adjustor includes sheath, continous way adjustment portion described in the sheath outer cover and the discontinuous
Adjustment portion；
The sheath is monolithic construction；Or the sheath is split type structure, including corresponding with continous way adjustment portion
First sheath branch and the second sheath branch corresponding with discontinuous adjustment portion, described in the partial insertion of the first sheath branch
Two sheath branches, and be welded and fixed.
Optionally, the discontinuous adjustment portion includes coulisse and the hollow shaft across the coulisse；
It further include rotation axis and sleeve, the end of the rotation axis is equipped with the rotation axis shaft shoulder, described in the rotation axis insertion
After hollow shaft, the rotation axis shaft shoulder contradicts the outer end face of the coulisse；The sleeve it is open at one end, the other end have top
Portion, the top are equipped with supported hole, and the end of the rotation axis passes through the supported hole of the sleeve, the open end end of the sleeve
The outer end face of the coulisse is fixed in face.
Angle adjustor provided by the utility model and compound ratchet wheel, internal gear and ratchet are welded and fixed, and are realized
Angle adjustor continous way and discontinuous regulatory function it is integrated.Moreover, first internal gear and ratchet are welded and fixed to form compound spine
Wheel, then other components of continous way adjustment portion and discontinuous adjustment portion are assembled together with compound ratchet wheel, form angle modulation
Device is easy to guarantee the precision of assembly, it is ensured that concentricity.Meanwhile internal gear and ratchet welding are compound, not will increase compound ratchet wheel
The outer diameter of radial dimension, the integral type angle adjustor of formation is smaller.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of continous way angle adjustor in the prior art；
Fig. 2 is a kind of schematic diagram of discontinuous angle adjustor in the prior art；
Fig. 3 is a kind of schematic diagram of bench seat with split back angle adjustor in the prior art；
Fig. 4 provides seat angle adjustor a kind of perspective view of the explosion of specific embodiment by the utility model；
Fig. 5 is the schematic diagram at another visual angle Fig. 4；
Fig. 6 is the perspective view of the explosion of discontinuous adjustment portion in Fig. 4；
Fig. 7 is the schematic diagram of continous way adjustment portion in Fig. 4；
Fig. 8 is schematic diagram of the internal gear of compound ratchet wheel in first embodiment before compound；
Fig. 9 is schematic diagram of the ratchet of compound gear in first embodiment before compound；
The schematic diagram for the compound ratchet wheel that Figure 10 is compounded to form for ratchet in internal gear in Fig. 8 and Fig. 8；
Figure 11 is the partial enlarged view at the position A in Figure 10；
Figure 12 is the schematic diagram equipped with the angle adjustor of compound ratchet wheel in Figure 10；
Figure 13 is the axial sectional view of Figure 12；
Figure 14 be in second embodiment internal gear and hook tooth change ring gear it is compound after schematic diagram；
Figure 15 is the partial enlarged view at the position B in Figure 14；
Figure 16 be in 3rd embodiment internal gear and hook tooth change ring gear it is compound after schematic diagram；
Figure 17 is the partial enlargement diagram at the position C in Figure 16；
Figure 18 be in fourth embodiment internal gear and hook tooth change ring gear it is compound after schematic diagram；
Figure 19 is the partial enlargement diagram at the position D in Figure 18.
The reference numerals are as follows in Fig. 1-3:
Driving part 2, wedging torsional spring 3, cover board 4, wedge block 5, eccentric wheel 6, outer tooth plate 7, internal gear 25, internal gear 25,
Ring gear 83, the middle part shaft shoulder 84, ratchet 26, sliding block 11, unlock cam 9, wedge block 12, reset spring 13, hollow shaft 14, sliding slot
Plate 15, ratchet 26, interior ratchet segment 81, smooth section 82, gear plate 20, movable plate 21, fixed plate 22, bearing holder (housing, cover) 23, pawl 24, extroversion
It is canine tooth 201, introversive small tooth 202, axle center hole 203, planing surface 204, axle center blind hole 211, interior to canine tooth 212.
The reference numerals are as follows in Fig. 4-19:
Sheath 1, driving part 2, driving hollow shaft 32, wedging torsional spring 3, cover board 4, wedge block 5, eccentric wheel 6, outer tooth plate 7,
Bearing holder (housing, cover) 71, outer gear ring 72, centre bore 73, unlock cam 9, locking cam 10, sliding block 11, sliding block ratchet 111, sliding block are from locking face
One 112, sliding block from locking face 2 113, wedge block 12, wedging block self locking face 121, reset spring 13, hollow shaft 14, coulisse 15,
First sliding groove 151, second sliding slot 152, rotation axis 16, the rotation axis shaft shoulder 161, sleeve 17；
Compound ratchet wheel 8；
Internal gear 81, the first ring gear 811, ring gear 811a, internal gear main body 812, ring-shaped step 8121, periphery wall
8121a, avoid holes 8122, annular step surface 8123, the middle part shaft shoulder 813；
Ratchet 82, the second ring gear 821, interior ratchet segment 821a, smooth section 821b, annular solid 822, inner wall 822a, end face
822b, outer ring 823；
Interconnecting piece 83.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to the accompanying drawing and have
The utility model is described in further detail for body embodiment.
This programme provides a kind of compound ratchet wheel of seat angle adjustor, which includes forming seat angle adjustor continous way
The internal gear of adjustment portion, and form the ratchet of discontinuous adjustment portion, the principle of continous way adjustment portion and discontinuous adjustment portion
It is consistent with background technique description, it can refer to understanding, also belong to the prior art, the present embodiment is also made an explanation again, in order to manage
Solve the component part and its function of compound ratchet wheel.
Fig. 4-7 is please referred to, the explosion that Fig. 4 provides a kind of specific embodiment of seat angle adjustor by the utility model is illustrated
Figure；Fig. 5 is the schematic diagram at another visual angle Fig. 4；Fig. 6 is the perspective view of the explosion of discontinuous adjustment portion in Fig. 4；Fig. 7 is to connect in Fig. 4
The schematic diagram of continuous formula adjustment portion.
The seat angle adjustor mainly includes three parts: continous way adjustment portion, discontinuous adjustment portion and by the two parts
The compound ratchet wheel being cascaded.
Fig. 6 is referred to, continous way adjustment portion mainly includes outer tooth plate 7, internal gear component, gap relief member and driving portion
Part 2, driving part 2 include driving hollow shaft 32.Outer tooth plate is fixedly connected with 7 in seat, and the middle part is provided with through-holes to be used for
Fitted Axles bearing sleeve 71.As shown in Figure 5,6, the internal gear 81 (component part of compound ratchet wheel 8) of internal gear component has ring gear
811a, the middle part of internal gear 81 have an axially projecting middle part shaft shoulder 813, and outer tooth plate 7 has an outer gear ring 72, outer gear ring 72 with
In compound ratchet wheel 8 after the ring gear 811a engagement of internal gear 81,71 centre bore of bearing holder (housing, cover) of the shaft shoulder 813 and outer tooth plate 7 at middle part
Between formed radial disbalance region.Hollow shaft 32 is driven successively to pass through the inner hole of wedging torsional spring 3, the inner hole of cover board 4, compound ratchet wheel
After the inner hole of the 8 middle part shaft shoulder 813 is pierced by, by the end of riveting driving hollow shaft 32, that realizes angle adjustor continuously adjusts portion
The axially position divided.
Continous way adjustment portion is additionally provided with eccentric wheel 6 and wedge block 5, and the two is placed in the radial disbalance region, and in wedging
Torsional spring 3 acts on lower wedging.When needing the angle of back-rest of swiveling seat, passenger applies driving torque to driving part 2, and driving is eccentric
Wheel 6 or wedge block 5, to be reliably achieved 81 phase of internal gear using the working principle of planet-gear transmission mechanism
The rotation of external tooth plate 7, the i.e. continuous angular adjustment of backrest.After angular adjustment, the peripheral force that wedging torsional spring 3 applies is acted on partially
Heart wheel 6 and wedge block 5, eccentric wheel 6 and wedge block 5 are respectively and in the 71 center hole wall of bearing holder (housing, cover) and internal gear 81 of outer tooth plate 7
After portion's shaft shoulder 813 offsets, gap can be eliminated, i.e., eccentric wheel 6 and wedge block 5 etc. form gap relief member.This fining
Angular adjustment and gap cancellation substantially increase the comfort of seat.
As shown in fig. 7, discontinuous adjustment portion mainly includes coulisse 15, ratchet assembly, unlock and locking component.Sliding slot
Plate 15 is fixedly connected with the chair back, can be specifically fixedly connected by four boss shown in figure with the chair back.Discontinuous adjustment portion
Formed by internal friction self-locking, outer tooth plate 7 and the locking of internal gear 81 of compound ratchet wheel form ratchet assembly.
Unlock and locking component include sliding block 11, and wedge block 12 unlocks cam 9, locking cam 10, reset spring 13, sky
Mandrel 14, sleeve 15 and rotation axis 16.Unlock cam 9, locking cam 10, reset spring 13, coulisse 15 and 14 phase of hollow shaft
Connection.Rotation axis 16 penetrates hollow shaft 14, and the outer end face conflict of the rotation axis shaft shoulder 161 and coulisse 15 plays position-limiting action, prevents
Internal gear side play of the hollow shaft 14 toward compound ratchet wheel 8.In rotation axis 16 outer cover, one sleeve 17, sleeve 17 can be with sliding slot
Plate 15 is welded and fixed, and sleeve 17 and 16 small―gap suture of rotation axis cooperate, make hollow shaft 14 and rotation axis 16 it is whole with coulisse 15 and
Sleeve 17 forms double fulcrum supports, and reduction hollow shaft 14 radially wobbles with rotation axis 16.
After rotation axis 16 rotates under outer power drive, the sliding block ratchet of 11 periphery of sliding block and the interior ratchet of compound ratchet wheel are de-
It opens, after reset spring 13 drives unlock cam 9 and locking cam 10 by hollow shaft 14, the interior ratchet and cunning of compound ratchet wheel
Block ratchet engagement, locking cam 10 is from locking face and sliding block from locking face 1, and sliding block is from locking face 2 113 and wedge-shaped block self locking face 121
It is inconsistent, form locking.When the interior ratchet of compound ratchet wheel is opposite with sliding block ratchet, by external force and the power of reset spring 13 come
Driving unlock cam 9 and locking cam 10 rotate, to control locking or the unlock of sliding block ratchet assembly, realize compound ratchet wheel phase
Rotation to coulisse, the i.e. discontinuous angular adjustment of backrest.There are two sections of uniformly distributed interior ratchets and two sections uniformly distributed on compound ratchet wheel
Fold plane, when fold plane is opposite with sliding block ratchet, it can be achieved that the fast folding of backrest.
It follows that the compound ratchet wheel 8 provided in this programme, the purpose is to by the ratchet 82 of discontinuous adjustment portion and even
The internal gear 81 of continuous formula adjustment portion is combined with each other, so that having both discontinuous adjusting using the angle adjustor of the compound ratchet wheel
The advantages of with continuously adjusting, describes emphatically so not being described in more detail to continous way adjustment portion and discontinuous adjustment portion
Discontinuous adjustment portion and continous way adjustment portion it is compound.Specifically internal gear 81 is welded together to form with ratchet 82 compound
Then ratchet 8 assembles corresponding components, form the angle adjustor of combined type.
The mode specifically welded can refer to following embodiments.
Embodiment 1
Fig. 8-13 is please referred to, Fig. 8 is schematic diagram of the internal gear 81 of compound ratchet wheel 8 in first embodiment before compound；
Schematic diagram of the ratchet 82 that Fig. 9 is in first embodiment compound 8 before compound；Figure 10 is spine in internal gear 81 in Fig. 8 and Fig. 8
The schematic diagram for the compound ratchet wheel 8 that wheel 82 is compounded to form；Figure 11 is the partial enlarged view at the position A in Figure 10；Figure 12 is equipped with Figure 10
The schematic diagram of the angle adjustor of middle compound ratchet wheel 8；Figure 13 is the axial sectional view of Figure 12.
In the embodiment, internal gear 81 is formed by plate fine, using Fig. 8 as visual angle, for internal gear 81, first from left-hand
Right half fine forms after the first ring gear 811 and fine and protrudes the internal gear main body 812 of the first ring gear 811, is equivalent to half punching and formed
Disk-like structure, the edge of disk-like structure are the first ring gears 811, and trying to get to the heart of a matter for disk-like structure is internal gear main body 812.At this point, first
The inner ring of ring gear 811 is the ring gear 811a for forming internal gear 81.Then, the outer peripheral edge of internal gear main body 812 is subjected to turning,
Ring-shaped step 8121 and the annular step surface 8123 towards ratchet 82 are formed, ring-shaped step 8121 has annular profile wall 8121a.
In Fig. 8, the annular step surface 8123 formed by teeth portion turning is constituted along the end face of multiple dentalations of ring week distribution, i.e.,
Annular step surface 8123 is discontinuous end face.
Reversed fine also is carried out to the middle part of internal gear main body 812 and forms the middle part shaft shoulder 813, the i.e. direction of fine and fine
The contrary of the first ring gear 811 is formed, the middle part shaft shoulder 813 of formation protrudes from internal gear main body 812, the middle part shaft shoulder 813
Eccentric region above-mentioned can be formed between the bearing holder (housing, cover) centre bore of outer tooth plate 7.
In addition, can also continue inside turning to internal gear main body 812 forms pit, pit forms evacuation discontinuous and adjusts
The avoid holes 8122 of portion's inner mount.
As shown in Figures 9 and 10, ratchet 82 is also formed by plate fine, and half fine of plate is formed the second ring gear 821 and is protruded
The plate body of second ring gear 821, i.e., also form disk-like structure, and then turning plate body forms annular solid 822 again, then is formed whole in ring
The ratchet 82 of shape.The ratchet of the ratchet 82 is formed in the second ring gear 821, and the second ring gear 821 has interior ratchet segment 821a and light
Sliding folded section 821b (being shown in Fig. 7).
As shown in figure 11, when welding ratchet 82 and internal gear 81, by the 822 housing internal gear 81 of annular solid of ratchet 82
Ring-shaped step 8121, then the inner wall 822a of annular solid 822 can fit shape with the annular profile wall 8121a of ring-shaped step 8121
At welding surface.Annular solid 822 and ring-shaped step 8121 are respectively along the axially extending of ratchet 82 and internal gear 81, ratchet 82 and interior
Tooth plate 81 is coaxial, so welding surface at this time is also axially extending, so as shown in figure 11, black arrow indicates welding direction,
Can be along axial welding, axial is the axial direction of internal gear 81, ratchet 82, and welds the axial direction of the compound ratchet wheel 8 formed.
Embodiment 2
Please refer to the schematic diagram of Figure 14,15, Figure 14 for internal gear 81 in second embodiment and ratchet 82 after compound；Figure 15 is
The partial enlarged view at the position B in Figure 14.
Embodiment 2 is substantially the same manner as Example 1, and internal gear 81 forms the first ring gear 811 and internal gear main body 812, internal tooth
Plate main body 812 forms ring-shaped step 8121 and annular step surface 8123 towards the side of ratchet 82, and ratchet 82 forms annular solid 822
With the second ring gear 821, difference can refer to Figure 14 understanding, when welding ratchet 82 and internal gear 81, outside the annular solid 822 of ratchet 82
The ring-shaped step 8121 of internal gear 81 is covered, but requires the end face 822b and internal gear 81 of the annular solid 822 of ratchet 82 at this time
The fitting welding of annular step surface 8123.As shown in figure 14, the end face 822b of annular step surface 8123 and annular solid 822 is welding
Face.Welding surface at this time is radially extended along internal gear 81, ratchet 82, can radially be welded, the black arrow of Figure 15
Indicate welding direction.
It should be appreciated that in order to realize preferable cooperation precision, the ring-shaped step 8121 of internal gear 81 and the annular of ratchet 82
822 coaxial cooperation of body, the periphery wall 8121a of ring-shaped step 8121 and the inner wall 822a of annular solid 822, annular step surface 8123
It with the end face 822b of annular solid 822, being preferably bonded, i.e., carries out welding axially and radially simultaneously, bonding area is bigger, from
And realize better weld strength and cooperation precision.
Embodiment 3
Please refer to the schematic diagram of Figure 16,17, Figure 16 for internal gear 81 in 3rd embodiment and ratchet 82 after compound；Figure 17 is
The partial enlargement diagram at the position C in Figure 16.
In the embodiment, internal gear 81 is formed by plate fine, using Figure 15 as visual angle, for internal gear 81, first from left-hand
Right half fine forms after the first ring gear 811 and fine and protrudes the internal gear main body 812 of the first ring gear 811, is equivalent to and partly rushes shape
Discoid structure, the edge of disk-like structure are the first ring gears 811, and trying to get to the heart of a matter for disk-like structure is internal gear main body 812.At this point, the
The inner ring of one ring gear 811 is the ring gear 811a for forming internal gear 81.Unlike the first embodiment, internal gear 81 at this time is simultaneously
It does not need turning and forms ring-shaped step 8121.Certainly, also fine forms the middle part shaft shoulder 813 and vehicle to the internal gear 81 in the embodiment
It cuts to form avoid holes 8122, can refer to the understanding of embodiment 1.
And the ratchet 82 in the embodiment is also to be formed by plate fine, but structure is different from embodiment 1,2.First by plate
Half fine of part forms outer ring 823 and axially protrudes the plate body of outer ring 823, and then to plate body, fine forms the second of ratchet 82 again
Ring gear 821, the inner ring of the second ring gear 821 form interior ratchet segment 821a and smooth folded section 821b.
At this point, as shown in Figure 16,17, when internal gear 81 and ratchet 82 recline, the first ring gear 811 and ratchet of internal gear 81
82 outer ring 823 can be bonded and solderable fixation, wherein the first ring gear 811 of internal gear 81 only paste with outer ring 823 by part
Conjunction forms welding surface, and the other parts of the first ring gear 811 and the second ring gear 821 of ratchet 82 are opposite, and exist therebetween such as
Gap shown in Figure 16.
Embodiment 4
Please refer to the schematic diagram of Figure 18,19, Figure 18 for internal gear 81 in fourth embodiment and ratchet 82 after compound；Figure 19 is
The partial enlargement diagram at the position D in Figure 18.
The embodiment, between internal gear 81 and the outer rim of ratchet 82 be equipped with interconnecting piece 83, and internal gear 81, ratchet 82 with
Interconnecting piece is respectively welded, i.e., the side of interconnecting piece 83 is bonded welding with internal gear 81, and the other side is bonded welding with ratchet 82, thus
Realization internal gear 81 is welded and fixed with ratchet 82.
It is specific as shown in figure 18, the structure of internal gear 81 and ratchet 82 in the embodiment and the internal tooth in embodiment 1,2
Plate 81,82 structure of ratchet are identical.When internal gear 81 and opposite ratchet 82, the internal gear main body 812 and annular solid that axially protrude
822 is opposite, in this way, between formation annular circularizes between the first ring gear 811 of internal gear 81 and the second ring gear 821 of ratchet 82
Gap.Interconnecting piece 83 can be set in the annular gap, and interconnecting piece 83 can be correspondingly annular, with the first ring gear 811, the second ring gear
821 are respectively welded, to realize being welded and fixed for internal gear 81 and ratchet 82, i.e., are indirectly welded and fixed.So set, welding
It is located proximate to the outer rim of internal gear 81, ratchet 82, welding is easier to implement, and soldering reliability is easier to be protected.Figure 18,19
In, welding surface radially extends, and welding direction is as shown in black arrow in figure.
At this point, identical as embodiment 1,2, internal gear 81 can also turning form ring-shaped step 8121, annular step surface 8123,
Cooperating with the annular solid 822 of ratchet 82, the inner wall 822a of annular solid 822 is bonded with the periphery wall 8121a of ring-shaped step 8121,
The end face 822b of annular solid 822 is bonded with annular step surface 8123, then internal gear 81, ratchet 82 when advantageous interconnecting piece 83 welds
Positioning.At the same time, when the inner wall 822a is bonded with periphery wall 8121a, end face 822b with annular step surface 8123
It can be welded and fixed and (can not also be welded), be equivalent to and add interconnecting piece 13 on the basis of embodiment 1,2 and welded, from
And enhance the reliability of compound rear compound ratchet wheel 8.
In above embodiments, internal gear 81 and ratchet 82 are welded and fixed, realize angle adjustor continous way and Fei Lian
Continuous formula regulatory function integrates.And as further scheme, it is welded again after the processing of both internal gear and ratchet fine, fine is easy to
It realizes, cost can be controlled.It should be noted that 82 fine of internal gear 81 described in text and ratchet, fine are initial steps
Suddenly, as described herein, the turning step of supplementary processing can also be accompanied with.Moreover, first will be after 82 fine of internal gear 81 and ratchet
It is welded and fixed to form compound ratchet wheel 8, then by other components of continous way adjustment portion and discontinuous adjustment portion and compound ratchet wheel 8
It is assembled together, forms angle adjustor, be easy to guarantee the precision of assembly, it is ensured that concentricity.Meanwhile internal gear 81 and ratchet 82 weld
It is compound, it not will increase the radial dimension of compound ratchet wheel 8, the outer diameter of the integral type angle adjustor of formation is smaller.
It can be it has furthermore been found that preferably, the further processing of ratchet 82 forms annular element, i.e. fine from above-described embodiment
The second ring gear 821 and disk body are formed, then turning is carried out to disk body and forms annular solid 822.It is i.e. close with what is enumerated in background technique
Ratchet structure like plate-like is different, when annular ratchet 82 is opposite with internal gear 81, so that projection of the two on axial cross section
At least partly it is overlapped.As shown in embodiment 1,2,4, ring-shaped step 8121 is formed in 812 turning of internal gear main body of internal gear 81,
Then the annular solid 822 of ratchet 82 can housing ring-shaped step 8121, then ratchet 82 and projection of the annular solid 822 on axial cross section
It can all be overlapped, can also partially overlap, Tu11Zhong, the axial length of annular solid 822 is slightly longer than ring-shaped step 8121.For implementing
Example 3 is then equivalent to the internal gear main body 812 of the 823 outer cover internal gear 81 of outer ring of ratchet 82, outer ring 823 and internal gear main body
812 projection on axial cross section is completely coincident, and certainly, is partially overlapped also possible.
It is closed that is, the ratchet 82 and internal gear 81 in above embodiments exist at least partially along the axial cooperation inlayed
System, to reduce axial dimension, reduces the axial width of the compound ratchet wheel 8 of formation, and do not interfere with the strong of compound ratchet wheel 8
Degree.As it can be seen that internal gear 81 and ratchet 82 weld, radial dimension can be reduced, and the cooperation axially inlayed can reduce axial ruler
It is very little, so that 8 size of compound ratchet wheel formed is smaller, meet market for the miniature requirement of angle adjustor.
For the various embodiments described above, compound ratchet wheel 8 installs component and the continous way adjustment of corresponding discontinuous adjustment section
After the component in portion, sheath 1 can be assembled, sheath 1 understands in combination with Fig. 3,4,11,12.Sheath 1 is annular in shape, outer cover internal gear
81, inside it, as shown in figure 12, sleeve 17 and driving part 2 are then exposed for ratchet 82, outer tooth plate 7, coulisse 15.Sheath 1 can
To be directly formed to monolithic construction, it is also possible to include two parts, a part is used for outer cover continous way adjustment portion, and a part is
For outer cover discontinuous adjustment portion, two parts are welded into entirety, easy to process.
As shown in figure 13, the radial dimension of outer tooth plate 7 is less than the radial dimension of coulisse 15, and sheath 1 correspondingly has platform
Rank carries out seperated welding setting sheath 1 at this time and is more readily processed, and maintains the diameter of smaller angle adjustor, reduces volume.When
So, outer 7 radial dimension of tooth plate can increase, and sheath 1 can be processed as isometrical cylindrical shape, be integrally formed be more readily processed at this time.
As shown in figure 13, sheath 1 is split type structure, and the first sheath branch including corresponding to continous way adjustment portion is path part,
And the second sheath branch corresponding to discontinuous adjustment portion, it is large diameter portion, the first sheath branch is straight tube shape, is easy to add
Work；Second sheath branch includes vertical tube part and bottom, and bottom is annular in shape.First sheath branch and the second sheath branch are using socket
Mode, i.e. in the second sheath of partial insertion branch of the first sheath branch, and be welded and fixed, can carry out penetrating weldering, weld
Intensity can further satisfaction requirement.
In addition, understanding please continue to refer to Figure 13, the angle adjustor equipped with above-mentioned compound ratchet wheel 8, in addition to including 14 He of hollow shaft
It further include sleeve 17 except rotation axis 16, the end of rotation axis 16 is equipped with the rotation axis shaft shoulder 161, and rotation axis 16 is inserted into hollow shaft
After 14, the rotation axis shaft shoulder 161 contradicts the outer end face of coulisse 15, is its right side in Figure 12；Sleeve 17 it is open at one end, separately
One end has top, and top is equipped with supported hole, and the end of rotation axis 16 passes through the supported hole of sleeve 17, the open end end of sleeve 17
The outer end face of coulisse 15 is fixed in face.In this way, sleeve 17 is that rotation axis 16 provides supporting point, rotation axis 16 can be effectively prevent
Deflection, thus the reliability for keeping angle adjustor to adjust.
Above are merely preferred embodiments of the utility model, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of this utility model, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as the protection scope of the utility model.
Claims (11)
1. the compound ratchet wheel (8) of angle adjustor, the internal gear (81) including forming angle adjustor continous way adjustment portion, and formed discontinuous
The ratchet (82) of formula adjustment portion, which is characterized in that both the internal gear (81) and the ratchet (82) are opposite, and along axial direction
And/or radial direction is welded and fixed, and forms the compound ratchet wheel (8).
2. the compound ratchet wheel (8) of angle adjustor as described in claim 1, which is characterized in that ratchet (82) processing forms ring
Shape part, when the ratchet (82) and the internal gear (81) are opposite, the projection on axial cross section is at least partly overlapped.
3. the compound ratchet wheel (8) of angle adjustor as claimed in claim 2, which is characterized in that the internal gear (81) is by plate half
The internal gear main body (812) of first ring gear (811), the internal tooth are protruded after fine formation the first ring gear (811) and fine
The ring gear (811a) of plate (81) is formed in the inner ring of first ring gear (811)；The outer rim vehicle of the internal gear main body (812)
It cuts to form ring-shaped step (8121), annular step surface (8123)；
The ratchet (82) is by plate fine at half fine of plate forms the second ring gear (821) and prominent second ring gear
(821) plate body, plate body described in fine form annular solid (822)；The interior ratchet segment (821a) of the ratchet (82) is formed in institute
It states the second ring gear (821), the end face (822b) of the annular solid (822) is bonded welding with the annular step surface (8123), and/
Or, the inner wall (822a) of the annular solid (822) is bonded welding with the periphery wall (8121a) of the ring-shaped step (8121)；
The annular solid (822) is at least partly overlapped with projection of the ring-shaped step (8121) on axial cross section.
4. the compound ratchet wheel (8) of angle adjustor as claimed in claim 3, which is characterized in that in the internal gear main body (812)
Portion's fine forms the middle part shaft shoulder (813) cooperated with the outer tooth plate (7) of continous way adjustment portion, and the middle part shaft shoulder (813) is prominent
In the internal gear main body (812).
5. the compound ratchet wheel (8) of angle adjustor as claimed in claim 3, which is characterized in that the internal gear main body (812) is inside
Turning forms pit, and the pit forms the avoid holes (8122) for avoiding the discontinuous adjustment portion inner mount.
6. the compound ratchet wheel (8) of angle adjustor as claimed in claim 2, which is characterized in that the ratchet (82) is by plate fine
It is formed, half fine of plate forms the plate body of outer ring (823) and the prominent outer ring (823), and the plate body fine forms the spine
Second ring gear (821) of (82) is taken turns, the second ring gear (821) forms the interior ratchet segment (821a) of the ratchet (82)；
The internal gear (81) is formed after the first ring gear (811) and fine by half fine of plate protrudes first ring gear (811)
Internal gear main body (812), the ring gear (811a) of the internal gear (81) is formed in the inner ring of first ring gear (811)；
The outer ring (823) is bonded and is welded and fixed with first ring gear (811)；
The outer ring (823) is at least partly overlapped with projection of the internal gear main body (812) on axial cross section.
7. the compound ratchet wheel (8) of angle adjustor as claimed in claim 2, which is characterized in that the internal gear (81) and the spine
It takes turns and is equipped with interconnecting piece (83) between the outer rim of (82), and the internal gear (81), the ratchet (82) and the interconnecting piece (83)
It is respectively welded, realizes being welded and fixed for the internal gear (81) and the ratchet (82).
8. the compound ratchet wheel (8) of angle adjustor as claimed in claim 7, which is characterized in that the internal gear (81) is by plate half
The internal gear main body (812) of first ring gear (811), the internal tooth are protruded after fine formation the first ring gear (811) and fine
The ring gear (811a) of plate (81) is formed in the inner ring of first ring gear (811)；
The ratchet (82) is formed the plate body of the second ring gear (821) and prominent second ring gear (821), essence by half fine of plate
It rushes the plate body and forms annular solid (822)；The interior ratchet segment (821a) of the ratchet (82) is formed in second ring gear
(821)；
Relatively, the interconnecting piece (83) is set to first ring gear for the annular solid (822) and the internal gear main body (812)
(811) between second ring gear (821)；Outer rim turning formation ring-shaped step (8121) of the internal gear main body (812),
Annular step surface (8123)；The annular step surface (8123) is bonded with the end face (822b) of the annular solid (822), and/or
The periphery wall (8121a) of the ring-shaped step is bonded with the inner wall (822a) of the annular solid (822), the annular solid with
(822) projection of the ring-shaped step (8121) on axial cross section is at least partly overlapped.
9. angle adjustor, which is characterized in that the compound ratchet wheel (8) including the described in any item angle adjustors of claim 1-8.
10. angle adjustor as claimed in claim 9, which is characterized in that the angle adjustor includes sheath (1), and the sheath (1) is outside
Cover the continous way adjustment portion and the discontinuous adjustment portion；
The sheath (1) is monolithic construction；Or the sheath (1) is split type structure, including corresponding with continous way adjustment portion
The first sheath branch and the second sheath branch corresponding with discontinuous adjustment portion, described in the partial insertion of the first sheath branch
Second sheath branch, and be welded and fixed.
11. angle adjustor as claimed in claim 9, which is characterized in that the discontinuous adjustment portion include coulisse (15) and
Hollow shaft (14) across the coulisse (15)；
It further include rotation axis (16) and sleeve (17), the end of the rotation axis (16) is equipped with the rotation axis shaft shoulder (161), and described turn
After moving axis (16) is inserted into the hollow shaft (14), the rotation axis shaft shoulder (161) contradicts the outer end face of the coulisse (15)；Institute
The open at one end of sleeve (17) is stated, the other end has top, and the top is equipped with supported hole, and the end of the rotation axis (16) is worn
The supported hole of the sleeve (17) is crossed, the outer end face of the coulisse (15) is fixed in the open end end face of the sleeve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822067820.9U CN209191735U (en) | 2018-12-10 | 2018-12-10 | The compound ratchet wheel of angle adjustor and angle adjustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822067820.9U CN209191735U (en) | 2018-12-10 | 2018-12-10 | The compound ratchet wheel of angle adjustor and angle adjustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209191735U true CN209191735U (en) | 2019-08-02 |
Family
ID=67428392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822067820.9U Withdrawn - After Issue CN209191735U (en) | 2018-12-10 | 2018-12-10 | The compound ratchet wheel of angle adjustor and angle adjustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209191735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109398173A (en) * | 2018-12-10 | 2019-03-01 | 湖北航嘉麦格纳座椅系统有限公司 | The compound ratchet wheel of angle adjustor and angle adjustor, installation method |
-
2018
- 2018-12-10 CN CN201822067820.9U patent/CN209191735U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109398173A (en) * | 2018-12-10 | 2019-03-01 | 湖北航嘉麦格纳座椅系统有限公司 | The compound ratchet wheel of angle adjustor and angle adjustor, installation method |
| CN109398173B (en) * | 2018-12-10 | 2024-01-26 | 湖北航嘉麦格纳座椅系统有限公司 | Angle adjuster and composite ratchet wheel and installation method thereof |
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