CN214943859U - Curtain pull rope winding and unwinding device - Google Patents
Curtain pull rope winding and unwinding device Download PDFInfo
- Publication number
- CN214943859U CN214943859U CN202121097672.0U CN202121097672U CN214943859U CN 214943859 U CN214943859 U CN 214943859U CN 202121097672 U CN202121097672 U CN 202121097672U CN 214943859 U CN214943859 U CN 214943859U
- Authority
- CN
- China
- Prior art keywords
- spring
- cover plate
- output shaft
- shaft
- pawl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
An embodiment of the utility model provides a (window) curtain stay cord winding and unwinding devices, include: a housing; the output shaft is pivoted on the shell, and an axial through hole is formed in the axis of the output shaft; a spring winding frame; a flat spiral spring; the end cover comprises a cover plate and a friction shaft formed by protruding from the middle part of the inner side surface of the cover plate; the ratchet assembly comprises a ratchet which is arranged at one end of the output shaft opposite to the cover plate and is coaxial with the output shaft, a plurality of pawls which are symmetrically distributed and pivoted on the cover plate, and elastic pieces which are arranged in one-to-one correspondence with the pawls and enable the pawls and the cover plate to be respectively abutted against at two ends so as to enable the pawls and the ratchet to keep unidirectional synchronous linkage matching; the torsion spring comprises a spring body and spring arms extending out from two opposite ends of the spring body along the radial direction, an inner hole of the spring body is in interference fit with the friction shaft, the two spring arms are respectively accommodated in limiting notches correspondingly formed in the shell, and when the pawl and the ratchet wheel are synchronously linked, the spring body and the friction shaft relatively slide to form sliding friction resistance. The embodiment can effectively prevent the flat spiral spring from being damaged.
Description
Technical Field
The embodiment of the utility model provides a relate to fittings for curtains technical field, especially relate to a (window) curtain stay cord winding and unwinding devices.
Background
Generally, a curtain cord retracting device comprises a housing, a reel assembled in the housing for winding a cord thereon, and a power mechanism assembled in the housing and drivingly connected with the reel for driving the reel to rotate; the power mechanism further comprises an output shaft, a spring winding frame parallel to the axial direction of the output shaft and a flat spiral spring assembled on the spring winding frame, wherein the outer end part of the flat spiral spring is further fixed on the outer side surface of the output shaft. However, the inventor found that, in the implementation of the present invention, due to the lack of a necessary damping structure between the power mechanism and the output shaft and the spiral spring, the spiral spring is easily damaged during the lifting process of the curtain, and the spiral spring has a relatively high design cost and is not easy to maintain.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a technical problem who solves provides a (window) curtain stay cord winding and unwinding devices, can effectually prevent that the flat spiral spring from damaging.
In order to solve the above technical problem, an embodiment of the present invention first provides the following technical solution: a window covering cord retractor comprising:
a housing;
the output shaft is pivoted on the shell, and an axial through hole is formed in the axis of the output shaft;
the spring winding frame is parallel to the output shaft and is pivoted on the shell;
a flat spiral spring wound and assembled on the spring winding frame and fixed to the outer side surface of the output shaft at the outer end part;
the end cover comprises a cover plate arranged on the outer side of the end face of one end of the output shaft and a friction shaft formed by protruding from the middle part of the inner side face of the cover plate, and the friction shaft penetrates through the axial through hole of the output shaft;
the ratchet assembly comprises a ratchet wheel which is arranged at one end of the output shaft opposite to the cover plate and is coaxial with the output shaft, a plurality of pawls which are symmetrically distributed and pivoted on the cover plate, and elastic pieces which are arranged in one-to-one correspondence with the pawls and enable the pawls and the cover plate to be in unidirectional synchronous linkage fit with each other by respectively abutting two ends of the elastic pieces against the pawls and the cover plate; and
the torsional spring comprises a spring body sleeved on the friction shaft and spring arms formed by extending out of two opposite ends of the spring body along the radial direction, an inner hole of the spring body is in interference fit with the friction shaft, the two spring arms are respectively accommodated in limiting notches correspondingly formed in the shell, and when the pawl is synchronously linked with the ratchet wheel, the spring body and the friction shaft relatively slide to form sliding friction resistance.
Furthermore, a bush made of wear-resistant materials is coaxially fixed on the outer side surface of one end, close to the torsion spring, of the friction shaft, and the spring body is sleeved outside the bush.
Further, a sleeve is formed on the shell, the torsion spring is arranged in the sleeve, the side wall of the sleeve forms the limiting notch, the bottom wall of the sleeve protrudes towards the opening direction to form a positioning column, a positioning shaft hole is formed in the end face, close to the torsion spring, of the friction shaft, and the friction shaft is inserted into the sleeve and is sleeved on the positioning column.
Furthermore, the width of the limiting notch is larger than the diameter of the spring arm, and when the pawl and the ratchet wheel are synchronously linked, the spring arm at one end of the torsion spring is pressed against the side wall of the limiting notch, so that the adjacent part of the spring body is loosened relative to the friction shaft.
Furthermore, a first counter bore is formed in the middle of one end, facing the cover plate, of the output shaft in a concave mode, ratchets are formed on the wall of the first counter bore to form the ratchet wheel, the cover plate covers the first counter bore, and the pawls are contained in the first counter bore.
Furthermore, a second counter bore is formed in the middle of the end, far away from the cover plate, of the output shaft in a concave mode, the sleeve is inserted into the second counter bore, and the torsion spring is contained in the second counter bore.
Furthermore, the elastic piece is a spring piece, one end of the elastic piece is connected with the pawl into a whole to form a V shape, a pivot hole is formed in the connecting part of the pawl and the spring piece, pivot shafts which are arranged in one-to-one correspondence with the pawl protrude out of one side face of the pawl of the cover plate, and the pawl is pivoted on the pivot shafts of the cover plate through the pivot holes.
Furthermore, one side of the cover plate, which faces the pawls, protrudes to form stop parts which are arranged in one-to-one correspondence with the pawls, and each pawl is abutted against the stop parts through the elastic sheets.
Furthermore, slots are symmetrically formed in the side wall of the bushing along the axial direction, the friction shaft symmetrically protrudes towards the side wall of one end of the torsion spring to form an inserting block, the friction shaft is inserted into the bushing, and the inserting block is inserted into the slots to enable the bushing and the friction shaft to be coaxially arranged and circumferentially and relatively fixed.
Further, curtain stay cord winding and unwinding devices still includes two reels, and stay cord winding opposite direction on two reels, two reels respectively with the spring winding frame with the output shaft transmission is connected, the spring winding frame with the output shaft is also connected in the transmission, the relative both ends of casing all are equipped with the perforation that supplies the stay cord to pass, two reels divide to locate the relative both ends of casing.
After the technical scheme is adopted, the embodiment of the utility model provides an at least, following beneficial effect has: the embodiment of the utility model provides a through addding torsional spring, ratchet subassembly and end cover, the elastic component through the ratchet subassembly makes the pawl with the ratchet keeps one-way synchronous linkage cooperation, and the hole of the spring body of torsional spring and the friction shaft interference fit of end cover, when the output shaft along first minute hand direction, the ratchet of ratchet supports and pushes away the pawl, further the pawl supports and pushes away elastic component and apron, because the spring body and the friction shaft interference fit of torsional spring this moment, be static friction and frictional force between the two great relatively, the spring body is relatively fixed with the friction shaft, the elastic component produces elasticity and makes the pawl kick-back thereby joint in proper order in each tooth's socket of ratchet, the elasticity that the pawl was overcome the elastic component is pushed to the ratchet realizes the rotation of output shaft; when the output shaft rotates along the second clockwise direction, the pawl and the tooth socket of the ratchet wheel are in a clamping alignment state, at the moment, the output shaft rotates to realize the rotation, the pawl rotates synchronously along with the ratchet wheel, the pawl is pivoted on the cover plate, the friction shaft is formed by protruding extension from the middle part of the inner side surface of the cover plate, the spring body and the friction shaft slide relatively to form sliding friction resistance at the moment, the friction force is reduced relatively, the friction shaft moves synchronously along with the ratchet wheel, the rotation of the output shaft is realized, the damping transmission is realized by the mutual friction of the friction shaft and the spring body, the motion of the output shaft is limited, and the damage of a plane spiral spring is prevented.
Drawings
Fig. 1 is a schematic view showing a disassembled state of an alternative embodiment of the curtain cord retracting device of the present invention.
Fig. 2 is a schematic view showing an alternative embodiment of the curtain cord retracting device of the present invention in a combined state.
Fig. 3 is a schematic cross-sectional view of an alternative embodiment of the curtain cord retractor of the present invention along the output shaft.
Fig. 4 is a schematic view of an alternative embodiment pawl of the window covering cord retractor of the present invention.
Fig. 5 is a schematic structural view of the assembly of the friction shaft, the torsion spring and the housing according to an optional embodiment of the curtain cord retracting device of the present invention.
Fig. 6 is a schematic view of a partial cross-sectional structure of an axial surface of an alternative embodiment of the curtain cord retracting device of the present invention.
Detailed Description
The present application will now be described in further detail with reference to the accompanying drawings and specific examples. It is to be understood that the following illustrative embodiments and description are only intended to illustrate the present invention, and are not intended to limit the present invention, and features in the embodiments and examples may be combined with each other in the present application without conflict.
As shown in fig. 1-6, an alternative embodiment of the present invention provides a curtain cord retracting device, comprising:
a housing 1;
an output shaft 2 pivoted on the shell 1, wherein an axial through hole 20 is formed at the axis of the output shaft 2;
a spring winding frame 3 which is parallel to the output shaft 2 and is pivoted on the shell 1;
a flat spiral spring 4 wound and assembled on the spring winding frame 3 and having an outer end fixed to an outer side surface of the output shaft 2;
the end cover 5 comprises a cover plate 50 arranged on the outer side of the end face of one end of the output shaft 2 and a friction shaft 52 formed by protruding from the middle part of the inner side face of the cover plate 50, and the friction shaft 52 penetrates through the axial through hole 20 of the output shaft 2;
the ratchet assembly 6 comprises a ratchet 60 which is arranged at one end of the output shaft 2 opposite to the cover plate 50 and is coaxial with the output shaft 2, a plurality of pawls 62 which are symmetrically distributed and pivoted on the cover plate 50, and elastic pieces 64 which are arranged corresponding to the pawls 62 one by one and have two ends respectively abutted against the pawls 62 and the cover plate 50 so as to enable the pawls 62 to keep unidirectional synchronous linkage and matching with the ratchet 60; and
the torsion spring 7 comprises a spring body 70 sleeved on the friction shaft 52 and spring arms 72 respectively formed by radially extending from two opposite ends of the spring body 70, an inner hole of the spring body 70 is in interference fit with the friction shaft 52, the two spring arms 72 are respectively accommodated in the limiting notches 10 correspondingly formed in the housing 1, and when the pawl 62 is synchronously linked with the ratchet wheel 60, the spring body 70 and the friction shaft 52 relatively slide to form sliding friction resistance.
In the embodiment of the utility model, the torsion spring 7, the ratchet wheel component 6 and the end cover 5 are additionally arranged, the elastic component 64 of the ratchet wheel component 6 ensures that the pawl 62 and the ratchet wheel 60 keep one-way synchronous linkage matching, and the inner bore of the spring body 70 of the torsion spring 7 is in interference fit with the friction shaft 52 of the end cap 5, when the output shaft 2 is in the first direction of the clock (in the embodiment shown in fig. 3, clockwise as indicated by arrow a), the ratchet of the ratchet 60 pushes against the pawl 62, and further the pawl 62 pushes against the elastic element 64 and the cover plate 50, at this time, because the spring body 70 of the torsion spring 7 is in interference fit with the friction shaft 52, static friction exists between the two and the friction force is relatively large, the spring body 70 and the friction shaft 52 are relatively fixed, the elastic element 64 generates elastic force to enable the pawl 62 to rebound so as to be sequentially clamped in each tooth socket of the ratchet 60, and the ratchet of the ratchet 60 pushes against the pawl 62 to overcome the elastic force of the elastic element 64 to realize the rotation of the output shaft 2; when the output shaft 2 rotates in the second clockwise direction (in the embodiment shown in fig. 3, the counterclockwise direction shown by the arrow B), since the pawl 62 is in a snap-fit alignment with the tooth socket of the ratchet 60, at this time, the output shaft 2 rotates, the pawl 62 rotates synchronously with the ratchet 60, the pawl 62 is pivoted on the cover plate 50, the friction shaft 52 protrudes from the middle of the inner side surface of the cover plate 50, the spring body 70 slides relative to the friction shaft 52 to form a sliding friction resistance, the friction force is relatively reduced, the friction shaft 52 moves synchronously with the ratchet 60, so that the rotation of the output shaft 2 is realized, and the damping transmission is realized by the mutual friction between the friction shaft 52 and the spring body 70, so that the motion of the output shaft 2 is limited, and the damage of the spiral flat spring 4 is prevented.
In an alternative embodiment of the present invention, as shown in fig. 1 and 5, a bushing 54 made of wear-resistant material is coaxially fixed on the outer side surface of one end of the friction shaft 52 close to the torsion spring 7, and the spring body 70 is sleeved outside the bushing 54. In this embodiment, the bush 54 made of a wear-resistant material is further arranged, and the bush 54 is sleeved with the spring body 70, so that direct friction between the spring body 70 and the friction shaft 52 is avoided, and the friction shaft 52 is effectively protected.
In yet another optional embodiment of the present invention, as shown in fig. 5 and 6, a sleeve 12 is formed on the housing 1, the torsion spring 7 is installed in the sleeve 12, the side wall of the sleeve 12 forms the limiting notch 10, the bottom wall of the sleeve 12 protrudes toward the opening direction to form the positioning column 14, a positioning shaft hole 521 is formed on the end surface of the friction shaft 52 close to one end of the torsion spring 7, and the friction shaft 52 is inserted into the sleeve 12 and sleeved on the positioning column 14. In the embodiment, the sleeve 12 is arranged on the housing 1, the torsion spring 7 is arranged in the sleeve 12, and the positioning shaft hole 521 of the friction shaft 52 is sleeved with the positioning column 14 of the sleeve 12, so that the assembly and positioning of the torsion spring 7, the friction shaft 52 and the housing 1 can be effectively realized.
In another alternative embodiment of the present invention, as shown in fig. 5, the width of the limiting notch 10 is larger than the diameter of the spring arm 72, and when the pawl 62 and the ratchet 60 are synchronously linked, the spring arm 72 at one end of the torsion spring 7 is pressed against the sidewall of the limiting notch 10 to release the adjacent part of the spring body 70 from the friction shaft 52. In the embodiment, the width of the limit notch 10 is designed to be larger than the diameter of the spring arm 72, when the pawl 62 and the ratchet 60 are synchronously linked, the spring arm 72 abuts against the limit notch 10 and moves until abutting against the side wall, when the spring arm 72 is further pressed against the side wall of the limit notch 10, a part of the spring body 70 adjacent to the spring arm 72 is spread relative to the friction shaft 52, the friction force between the spring body 70 and the friction shaft 52 is reduced, and the sliding friction between the spring body 70 and the friction shaft 52 is realized.
In an alternative embodiment of the present invention, as shown in fig. 1, a first counter bore 22 is formed by recessing a middle portion of an end of the output shaft 2 facing the cover plate 50, a ratchet is formed on a hole wall of the first counter bore 22 to form the ratchet 60, the cover plate 50 covers the first counter bore 22, and the pawl 62 is accommodated in the first counter bore 22. By disposing both the ratchet 60 and the pawl 62 in the first counterbore 22, the ratchet assembly 6 is equivalent to an internal ratchet mechanism, and the overall occupied volume is smaller.
In another alternative embodiment of the present invention, as shown in fig. 6, a second counter bore 24 is formed in the middle of the end of the output shaft 2 away from the cover plate 50, the sleeve 12 is inserted into the second counter bore 24, and the torsion spring 7 is accommodated in the second counter bore 24. The present embodiment further reduces the occupied volume by providing the second counterbore 24 and assembling the sleeve 12 and the torsion spring 7 in the second counterbore 24.
In an optional embodiment of the present invention, as shown in fig. 3 and 4, the elastic member 64 is a spring piece, and one end of the elastic member is connected to the pawl 62 into a whole to form a V-shape, a pivot hole 621 is disposed at a connection portion between the pawl 62 and the spring piece 64, a pivot shaft 501 is protruded from a side surface of the cover plate 50 facing the pawl 62 and is disposed corresponding to the pawl 62 one-to-one, and the pawl 62 is pivoted to the pivot shaft 501 of the cover plate 50 through the pivot hole 621. The elastic member 64 of the present embodiment is a spring plate, and is connected with the pawl 62 into a whole to form a V shape, when the pawl 62 pushes against the spring plate 64, the spring plate 64 can be elastically deformed appropriately, so as to apply elastic resistance to the pawl 62, and the pawl 62 can be conveniently pivoted on the cover plate 50 by pivoting and positioning the pivoting hole 621 and the pivoting shaft 501 of the cover plate 50.
In another alternative embodiment of the present invention, as shown in fig. 4, the cover plate 50 protrudes toward one side of the pawls 62 to form stop portions 503 corresponding to the pawls 62, and each pawl 62 abuts against the stop portion 503 via the elastic sheet 64. In this embodiment, the stop portion 503 is further provided to effectively stop and limit the elastic sheet 64.
In an optional embodiment of the present invention, as shown in fig. 1, the lateral wall of the bushing 54 is provided with slots 541 along axial symmetry, the friction shaft 52 is formed with insertion blocks 523 toward the symmetric protrusion of the lateral wall of one end of the torsion spring 7, the friction shaft 52 is inserted into the bushing 54, the insertion blocks 523 are inserted into the slots 541 to coaxially set the bushing 54 and the friction shaft 52 and circumferentially fix them relatively. In this embodiment, the friction shaft 52 and the bushing 54 can be fixed coaxially simply and conveniently by inserting the insertion block 523 into the insertion slot 541.
In another optional embodiment of the present invention, as shown in fig. 1, the curtain cord winding and unwinding device further includes two reels 8, and the winding directions of the cord on the two reels 8 are opposite, the two reels 8 are respectively connected to the spring winding frame 3 and the output shaft 2 in a transmission manner, the spring winding frame 3 and the output shaft 2 are also connected in a transmission manner, the opposite ends of the housing 1 are respectively provided with a through hole 16 for the cord to pass through, and the two reels 8 are respectively disposed at the opposite ends of the housing 1. In this embodiment, by providing two reels 5, and the winding directions of the pulling ropes on the two reels 5 are opposite, the ascending and descending movements of the curtain are set respectively, and by providing the through hole 32, the pulling ropes are conveniently penetrated into the housing 3.
The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention, and these forms are within the scope of the present invention.
Claims (10)
1. A curtain pull rope winding and unwinding device is characterized by comprising:
a housing;
the output shaft is pivoted on the shell, and an axial through hole is formed in the axis of the output shaft;
the spring winding frame is parallel to the output shaft and is pivoted on the shell;
a flat spiral spring wound and assembled on the spring winding frame and fixed to the outer side surface of the output shaft at the outer end part;
the end cover comprises a cover plate arranged on the outer side of the end face of one end of the output shaft and a friction shaft formed by protruding from the middle part of the inner side face of the cover plate, and the friction shaft penetrates through the axial through hole of the output shaft;
the ratchet assembly comprises a ratchet wheel which is arranged at one end of the output shaft opposite to the cover plate and is coaxial with the output shaft, a plurality of pawls which are symmetrically distributed and pivoted on the cover plate, and elastic pieces which are arranged in one-to-one correspondence with the pawls and enable the pawls and the cover plate to be in unidirectional synchronous linkage fit with each other by respectively abutting two ends of the elastic pieces against the pawls and the cover plate; and
the torsional spring comprises a spring body sleeved on the friction shaft and spring arms formed by extending out of two opposite ends of the spring body along the radial direction, an inner hole of the spring body is in interference fit with the friction shaft, the two spring arms are respectively accommodated in limiting notches correspondingly formed in the shell, and when the pawl is synchronously linked with the ratchet wheel, the spring body and the friction shaft relatively slide to form sliding friction resistance.
2. The curtain cord retractor according to claim 1 wherein a bushing made of wear-resistant material is coaxially fixed to an outer side surface of one end of the friction shaft, which is close to the torsion spring, and the spring body is sleeved outside the bushing.
3. The window curtain pull rope retracting device of claim 1, wherein the housing is formed with a sleeve, the torsion spring is mounted in the sleeve, the side wall of the sleeve forms the limit notch, the bottom wall of the sleeve protrudes towards the opening direction to form a positioning column, the end surface of the friction shaft close to one end of the torsion spring is provided with a positioning shaft hole, and the friction shaft is inserted into the sleeve and sleeved on the positioning column.
4. The window curtain cord retractor according to claim 1 or 3 wherein the width of the limit notch is greater than the diameter of the spring arm, and when the pawl and the ratchet wheel are synchronously linked, the spring arm at one end of the torsion spring is pressed against the side wall of the limit notch to release the adjacent part of the spring body relative to the friction shaft.
5. The curtain cord retracting device as claimed in claim 1, wherein a first counter bore is formed in a middle portion of one end of the output shaft facing the cover plate, ratchet teeth are formed on a wall of the first counter bore to form the ratchet wheel, the cover plate covers the first counter bore, and the pawl is accommodated in the first counter bore.
6. The curtain cord retracting device as claimed in claim 3, wherein a second counter bore is formed in the middle of the end of the output shaft away from the cover plate, and the sleeve is inserted into the second counter bore.
7. The window curtain cord retracting device of claim 1, wherein the elastic member is a spring piece, one end of the elastic member is connected with the pawl to form a V shape, a pivot hole is formed at a connecting part of the pawl and the spring piece, pivot shafts corresponding to the pawl are protruded from one side surface of the cover plate facing the pawl, and the pawl is pivoted on the pivot shaft of the cover plate through the pivot hole.
8. The window covering pull rope retracting device of claim 7, wherein the cover plate protrudes toward one side of the pawl to form a stop portion corresponding to the pawl, and each pawl abuts against the stop portion through the elastic sheet.
9. The curtain cord retracting device as claimed in claim 2, wherein the side wall of the bushing is symmetrically provided with slots along the axial direction, the friction shaft is symmetrically protruded towards the side wall of one end of the torsion spring to form insertion blocks, the friction shaft is inserted into the bushing, and the insertion blocks are inserted into the slots to coaxially arrange the bushing and the friction shaft and circumferentially fix the bushing and the friction shaft relatively.
10. The device for retracting and releasing the pulling rope of window curtain as claimed in claim 1, further comprising two reels, wherein the winding directions of the pulling rope on the two reels are opposite, the two reels are respectively in transmission connection with the spring winding frame and the output shaft, the spring winding frame and the output shaft are also in transmission connection, the opposite ends of the housing are respectively provided with a through hole for the pulling rope to pass through, and the two reels are respectively arranged at the opposite ends of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121097672.0U CN214943859U (en) | 2021-05-20 | 2021-05-20 | Curtain pull rope winding and unwinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121097672.0U CN214943859U (en) | 2021-05-20 | 2021-05-20 | Curtain pull rope winding and unwinding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214943859U true CN214943859U (en) | 2021-11-30 |
Family
ID=79058106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121097672.0U Active CN214943859U (en) | 2021-05-20 | 2021-05-20 | Curtain pull rope winding and unwinding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214943859U (en) |
-
2021
- 2021-05-20 CN CN202121097672.0U patent/CN214943859U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1384881B1 (en) | Recoil starter | |
| CN103154572B (en) | There is the stretcher of the spreader spring of the asymmetric damping for radial friction | |
| CN110602357A (en) | Camera telescoping device and mobile terminal | |
| US9644423B2 (en) | Roll control device of a vehicle curtain | |
| JP2004175151A (en) | Damper unit and glove box device using this damper unit | |
| JP5101483B2 (en) | Recoil starter | |
| AU7770000A (en) | Gear assembly and roll-up leash for dogs, said leash being provided with such a gear assembly | |
| CN214943859U (en) | Curtain pull rope winding and unwinding device | |
| JP5769049B2 (en) | Window cover with winding function | |
| CN109458890B (en) | Measuring tape | |
| CN113090178A (en) | Curtain pull rope winding and unwinding device | |
| CN215804287U (en) | Spring rod driven hand support zebra curtain | |
| CN101153538A (en) | Window roller blind | |
| JP4641632B2 (en) | Roll screen | |
| JP4707245B2 (en) | Retractable manual opening and closing device | |
| KR101213635B1 (en) | Shaft of roller blind | |
| CN211117291U (en) | Make fixed anticreep limit structure of torsion spring | |
| KR200306552Y1 (en) | Winding device | |
| CN108518466B (en) | Linear actuator with compact structure | |
| CN217401502U (en) | Vibration reduction type one-way overrunning clutch and one-way belt pulley of automobile engine | |
| CN213734679U (en) | Brake cable pre-tightening mechanism | |
| JP2000145334A (en) | Curtain body take-up device | |
| EP2466053A2 (en) | Cordless drive assembly | |
| CN216722790U (en) | Folding rocker arm | |
| CN211692251U (en) | Hand-push roller shutter spring system and hand-push roller shutter formed by same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |