GB2409704A - Device for adjusting the angular position of a handle relative to a vehicle frame - Google Patents
Device for adjusting the angular position of a handle relative to a vehicle frame Download PDFInfo
- Publication number
- GB2409704A GB2409704A GB0330117A GB0330117A GB2409704A GB 2409704 A GB2409704 A GB 2409704A GB 0330117 A GB0330117 A GB 0330117A GB 0330117 A GB0330117 A GB 0330117A GB 2409704 A GB2409704 A GB 2409704A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rod
- mounting seat
- control rod
- handle
- adjusting device
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/0209—Telescopic
- F16F9/0245—Means for adjusting the length of, or for locking, the spring or dampers
- F16F9/0263—Means for adjusting the length of, or for locking, the spring or dampers characterised by actuation means, e.g. manually-operated lever arrangement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K21/00—Steering devices
- B62K21/12—Handlebars; Handlebar stems
- B62K21/16—Handlebars; Handlebar stems having adjustable parts therein
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Steering Devices For Bicycles And Motorcycles (AREA)
Abstract
A handle-adjusting device for adjusting the position of a handle (22) relative to a vehicle frame (21) includes a valve cylinder (4) with a valve rod (421), and a control rod (5) that is formed with a pressing face (522) and a release face (521). When the control rod (5) is operated to align the pressing face (522) with an upper end of the valve rod (421), the valve rod (421) is disposed at a retracted position so as to enable rotation of the handle (22) relative to the vehicle frame (21). When the control rod (5) is operated to align the release face (521) with the upper end of the valve rod (421), the valve rod (421) is disposed at the extended position so as to prevent rotation of the handle (22) relative to the vehicle frame (21). As shown the control rod (5) is moved axially but in other embodiments it is rotated about its axis to align a pressing face with the valve rod.
Description
1 240sz04
HANDLE-ADJUSTING DEVICE FOR ADJUSTING THE POSITION OF A
HANDLE RELATIVE TO A VEHICLE FRAME
This invention relates to a handle-adjusting device, and more particularly to a handle-adjusting device for adjusting the position of a handle relative to a vehicle frame.
Referring to Fig. 1, a conventional handle-adjusting device13isdisposedbetweena vehicle framellanda handle 12 that has an upright support rod 121 and a handlebar 122 connected fixedly to an upper end of the support rod 121.
The vehicle frame 11 is formed with a fixed bracket 111.
The handle-adjusting device 13 includes a mounting seat 14 connected pivotally to the support rod 121, a pressing lever 15 connected pivotally to the mounting seat 14 at a front end thereof, and a valve cylinder 16 that includes a cylinder body 160 having a lower end connected pivotally to the bracket 111, a movable rod 160' connected telescopically to the cylinder body 160 and having an upper end connected fixedly to the mounting seat 14, and a valve rod 161 disposed axially and movably within the movable rod 160' and biased to press against a front end portion of the pressing lever 15. As such, the valve rod 161 is biased to an extended position, where the pressing lever is perpendicular to the valve rod 161 and where relative movement between the cylinder body 160 and the movable rod 160' is prevented. When the pressing lever 15 is turned downwardly to an inclined position as shown by the phantom lines so as to move the valve rod 161 to a refracted position, relative movement between the cylinder body 160 and the movable rod 160' is permitted so that the handle 12 can be rotated relative to the bracket 111. Thereafter, the S pressing lever 15 is released so that the valve rod 161 is biased to the extended position, thereby positioning the handle 12 relative to the vehicle frame 11. The aforesaid conventional handle-adjusting device 13 suffers from a drawback that it is difficult to adjust the position of the handle 12 in view of the fact that the operator has to hold the pressing lever 15 at the inclined position with one hand while he or she is rotating the handle 12 with the other hand. That is, there is a need for the operator to operate the handle-adjusting device 13 with both hands.
The object of this invention is to provide a handle-adjusting device for adjusting the position of a handle relative to a vehicle frame, which can be operated with only one hand.
According to this invention, a handle-adjusting device for adjusting the position of a handle relative to a vehicle frame includes a valve cylinder with a valve rod, and a control rod that is formed with apressing face end a release face. When the control rod is operated to align an upper end of the valve rod with the pressing face, the valve rod is disposed at a refracted position so as to enable rotation of the handle relative to the vehicle frame. When the control rod is operated to align the upper end of the valve rod with the release face, the valve rod is disposed at the extended position so as to prevent rotation of the handle relative to the vehicle frame. As such, the control rod can be operated to align the upper end of the valve rod with the pressing face of the control rod so as to permit adjustment of position of the handle, after which the control rod is operated to align the upper end of the valve rod with the release face of the control rod so as to position the handle relative to the vehicle frame.
These and other features and advantages of this invention will become apparent in the following detailed description of the preferred embodiments of this invention, with reference to the accompanying drawings, in which: Fig. lillustrateshowa conventionalhandle-supporting device is operated to adjust the position of a handle relative to a vehicle frame; Fig.2 is a pertly exploded perspective view of the first preferred embodiment of a handle-supporting device for adjusting the position of a handle relative to a vehicle frame according to this invention; Fig. 3 is a partly sectional side view of the first preferred embodiment; Fig. 4 is a fragmentary, partly sectional side view of the first preferred embodiment, illustrating how a valve rod is disposed at an extended position; Fig. 5 is a fragmentary, partly sectional side view of the first preferred embodiment, illustrating how the valve rod is disposed at a retracted position; Fig. 6 is a partly exploded perspective view of the second preferred embodiment of a handle-supporting device for adjusting the position of a handle relative to a vehicle S frame according to this invention; Fig. 7 is a fragmentary, partly sectional side view of the second preferred embodiment, illustrating how a valve rod is disposed at an extended position; Fig. 8 is a fragmentary, partly sectional side view of the second preferred embodiment, illustratinghowthevalve rod is disposed at a retracted position; Fig. 9 is a fragmentary, partly sectional side view of the third preferred embodiment of a handle-supporting device for adjusting the position of a handle relative to a vehicle frame according to this invention; and Fig. 10 is a perspective view of a control rod of the third preferred embodiment.
Before the present invention is described in greater detail in connection with the preferred embodiments, it should be noted that similar elements and structures are designated bylike reference numerals throughout the entire
disclosure.
Referring to Figs. 2, 3, and 4, the first preferred embodiment of a handle-adjusting device for adjusting the position of a handle 22 relative to a vehicle frame 21 is shown to include a mounting seat 3, an upright valve cylinder 4, a control rod 5, a T-shaped knob 6, and a ball l 7. The vehicle frame 21 is formed with a fixed U-shaped bracket211. The handle22 includes an upright support rod 221 connected pivotally to the bracket 211 at a lower end thereof, a handlebar 222 connected fixedly to an upper end of the support rod 221, and two aligned vertical plates 223 connected fixedly to and extending rearwardly from the support rod 221.
The mounting seat 3 is disposed behind the support rod 221, is connected rotatably to the vertical plates 223 by a horizontal pivot pin 30 in a known manner, and has a frontwardly and rearwardly extending intermediate hole 31 formed therethrough so as to permit extension of a front end portion of the control rod 5 therethrough, a planar bottom surface, and a threaded lower hole 32. The lower hole32 has an upper end communicated with the intermediate hole 31, and a lower end formed in the bottom surface.
The upright valve cylinder 4 is configured as a pneumatic cylinder, and includes a cylinder body 41, a movable rod 42, and a valve rod 421. The cylinder body 41 has a lower end connected pivotally to the bracket 211.
The movable rod 42 is disposed axially and movably within the cylinder body 41, and has an externally threaded upper end that projects upwardly from the cylinder body 41 and that engages the threaded lower hole 32 in the mounting seat 3. The valve rod 421 is disposed axially and movably within the movable rod 42 in a known manner, has an upper end projecting outwardly from the movable rod 42 and extending into the lower hole 32 in the mounting seat 3, and is movable relative to the movable rod 42 between an extended position shown in Fig. 4, where the movable rod 42 is fixed relativetothecylinderbody41, end a retracted S position shown in Fig. 5, where the movable rod 42 can move within the cylinder body 41. The valve rod 421 is biased to the extended position in a known manner.
The control rod 5 has an outward flange 51 disposed at a front distal end thereof, and a rod body 52 that is formed integrally with the outward flange 51. The rod body 52 is disposed movably within the intermediate hole 31 in the mounting seat 3, and is formed with an annular release face 521, an annular pressing face 522 that is disposed behind the release face 521 and that has a diameter larger than that of the release face 521, and a frustoconical face 520 that is disposed between end that interconnects the release face 521 and the pressing face 522. The outward flange 51 has a rear side surface abutting against a front surface of the mounting seat 3 so as to prevent rearward removal of the control rod 5 from the intermediate hole 31 in the mounting seat 3.
The knob 6 has an internally threaded front end 61 engaging an externally threaded rear end of the control rod 5, and is sized so as to prevent the knob 6 from moving into the intermediate hole 31 in the mounting seat 3.
The ball 7 is disposed within the lower hole 32 in the mounting seat 3 between the upper end of the valve rod 421 and the rod body 52 of the control rod 5. The upper end of the valve rod 421 is biased to press the ball 7 against the control rod 5.
The control rod 5 is movable on the mounting seat 3 to align the upper end of the valve rod 421 with a selected one of the release face 521 and the pressing face 522 of the control rod 5. Referring to Fig. 4, when the release face 521 of the control rod 5 is aligned with the upper end of the valve rod 421, the valve rod 421 is disposed at the extended position so as to prevent rotation of the handle 22 relative to the vehicle frame 21 (see Fig. 3).
Referring to Fig. 5, when the pressing face 522 of the control rod 5 is aligned with the upper end of the valve rod 421, the valve rod 421 is disposed at the retracted position so as to enable rotation of the handle 22 relative to the vehicle frame 21 (see Fig. 3).
When it is desired to adjust the position of the handle 22, the control rod 5 can be moved relative to the mounting seat 3 to align the upper end of the valve rod 421 with the pressing face 522 of the control rod 5 so as to permit adjustment of the position of the handle 22. Thereafter, the control rod 5 is moved relative to the mounting seat 3 to align the upper end of the valve rod421 with the release face 521 of the control rod 5 so as to position the handle 22 relative to the vehicle frame 21 (see Fig. 3). As such, the operator can adjust the position of the handle 22 with only one hand.
Figs. 6 and 7 show the second preferred embodiment of a handle-supporting device for adjusting the position of a handle 22 relative to a vehicle frame 21, which includes a mounting seat 3, a valve cylinder 4, a control rod 5, an L-shaped rotary knob 6, and a ball 7. The vehicle frame 21, the handle 22, the valve cylinder 4, and the ball 7 are similar to those of the first preferred embodiment in construction. Unlike the first preferred embodiment, the control rod 5 has an outer surface that is formed with an annular groove 523. A C-shaped retaining ring 53 is received within the annular groove 523 in the control rod 5, and abuts against a rear surface of the mounting seat 3 so as to prevent movement of the control rod 5 relative to the mounting seat 3 and so as to permit rotation of the control rod 5 relative to the mounting seat 3. The control rod 5 has a cylindrical rod body 52 that is disposed within the intermediate hole 31 in the mounting seat 3 and that is formed with a semi-cylindrical groove, which is defined by a planar bottom wall constituting the release face 521.
The pressing face 522 is shaped as a curved surface that has a uniform curvature radius, that is aligned with the release face 521 along a transverse direction of the control rod 5, and that has two opposite sides which are connected respectively to two opposite sides of the release face 521.
The front surface of the mounting seat 3 is formed with a stop rod 33 extending perpendicularly therefrom. The outward flange 51 of the control rod 5 is formed with a l limitingprojection511that extends racially end outwardly therefrom and that is rotatable relative to the mounting seat 3 to abut against the stop rod 33 of the mounting seat 3 when the pressing face 522 of the control rod 5 is aligned with the upper end of the valve rod 421, as shown in Fig. 8. The L-shaped rotary knob 6 has an externally threaded front end 61 engaging an internally threaded rear end of the control rod 5.
Figs. 9 and 10 show the third preferred embodiment of a handle-supporting device for adjusting the position of a handle 22 relative to a vehicle frame 21 (see Fig. 2), which is similar to the second preferred embodiment in construction except that the rod body 52 of the control rods is formed with aprojection. Theprojectionis formed with two vertical side surfaces 525 and a cam surface that is disposed between the vertical side surfaces 525 and that constitutes the pressing face 522. The release face 521 is shaped as a curved surface that has a uniform curvature radius, that is aligned with the pressing face 522 along a transverse direction of the control rod 5, and that has two opposite sides which are connected respectively to two opposite sides of the pressing face 522. The pressing face 522 has a central portion that is formed with a circular cavity 524 which engages the ball 7.
Claims (15)
- CLAIMS: 1. A handle-adjusting device for adjusting the position of ahandle relative to a vehicle frame, the handle including an upright support rod connected pivotally to the vehicle frame at a lower end thereof, and a handlebar connected fixedly to an upper end of the support rod, the handle-adjusting device comprising: a mounting seat adapted to be connected pivotally to and disposed behind the support rod; an upright valve cylinder including a cylinder body having a lower end adapted to be connected pivotally to the vehicle frame, a movable rod disposed axially end movably within the cylinder body and having an upper end that projects upwardly from the cylinder body and that is connected fixedly to the mounting seat, and a valve rod disposed axially and movably within the movable rod and having an upper end that projects upwardly from the movable rod, the valve rod being movable relative to the movable rod between a retracted position, where the movable rod can move within the cylinder body, and an extended position, where the movable rod is fixed relative to the cylinder body, the valve rod being biased to the extended position; and a control rod having a front end portion that is disposed within the mounting seat and that is formed with a pressing face and a release face, the control rod being operable on the mounting seat to align the upper end of the valve rod with a selected one of the pressing face and the release face of the control rod, the valve rod being disposed at the retracted position so as to enable rotation of the handle relative to the vehicle frame when the pressing face of the control rod is aligned with the upper end of the valve rod, the valve rod being disposed at the extended position so as to prevent rotation of the handle relative to the vehicle frame when the release face of the control rod is aligned with the upper end of the valve rod; whereby, the control rod can be operated to align the upper end of the valve rod with the pressing face of the control rod so as to permit adjustment of position of the handle, after which the control rod is operated to align the upper end of the valve rod with the release face of the control rod so as to position the handle relative to the vehicle frame.
- 2. The handle-adjusting device as claimed in Claim 1, wherein the mounting seat has a frontwardly and rearwardly extending intermediate hole formed therethrough so as to permit extension of the front end portion of the control rod therethrough, a bottom surface, and a lower hole that has an upper end communicated with the intermediate hole, and a lower end formed in the bottom surface, the upper end of the valve rod extending into the lower hole in the mounting seat; and the control rod is movable within the intermediate hole in the mounting seat, the pressing face and the release face being annular end teeing arranged one behind the other, the pressing face having a diameter larger than that of the release face.
- 3. The handle-adjusting device as claimed in Claim 2, wherein the control rod is further formed with a frustoconical face that is disposed between and that interconnects the pressing face and the release face.
- 4. The handle-adjusting device as claimed in Claim 2, further comprising a ball that is disposed within the lower hole in the mounting seat between the upper end of the valve rod and the control rod, the upper end of the valve rod being biased to press the ball against the control rod.
- 5. The handle-adjusting device as claimed in Claim 2, wherein the mounting seat has a front surface; the control rod is formed with an outward flange at a front distal end thereof, and an externally threaded rear end, the outward flange having a rear side surface abutting against the front surface of the mounting seat so as to prevent rearward removal of the control rod from the intermediate hole in the mounting seat; and the handle-adjusting device further comprises a T-shaped knob that has an internally threaded front end which engages the externally threaded rear end of the control rod, the knob being sized so as to prevent the knob from moving into the intermediate hole in the mounting seat.
- 6. The handle-adjusting device as claimed in Claim 1, wherein the mounting seat has a frontwardly and rearwardly extending intermediate hole formed therethrough so as to permit extension of the front end portion of the control rod therethrough, a bottom surface, and a lower hole that has an upper end communicated with the intermediate hole, and a lower end formed in the bottom surface, the upper end of the valve rod extending into the lower hole in the mounting seat; and the control rod has a cylindrical rod body that is disposed rotatably within the intermediate hole in the mounting seat and that is formed with a groove, which is defined by a planar bottom wall constituting the release face, the pressing face being shaped as a curved surface that has a uniform curvature radius, that is aligned with the release face along a transverse direction of the control rod, and that has two opposite sides which are connected respectively to two opposite sides of the release face.
- 7. The handle-adjusting device as claimed in Claim 6, further comprising a ball that is disposed within the lower hole in the mounting seat between the upper end of the valve rod and the control rod, the upper end of the valve rod being biased to press the ball against the control rod.
- 8. The handle-adjusting device as claimed in Claim 6, wherein the mounting seat has a front surface; the control rod is formed with an outward flange at a front distal end thereof, and an internally threaded rear end, the outward flange having a rear side surface abutting against the front surface of the mounting seat so as to prevent rearward removal of the control rod from the intermediate hole in the mounting seat; and the handle-adjusting device further comprises an L-shaped rotary knob that has an externally threaded front end which engages the internally threaded rear end of the control rod.
- 9. The handle-adjusting device as claimed in Claim 8, wherein the front surface of the mounting seat is formed with a stop rod that extends perpendicularly therefrom, the outward flange of the control rod being formed with a limiting projection that extends radially and outwardly therefrom and that is rotatable relative to the mounting seat to abut against the stop rod of the mounting seat when the pressing face of the control rod is aligned with the upper end of the valve rod.
- lO.The handle-adjusting device as claimed in Claim 1, wherein l the mounting seat has a frontwardly and rearwardly extending intermediate hole formed therethrough so as to permit extension of the front end portion of the control rod therethrough, a bottom surface, and a lower hole that has an upper end communicated with the intermediate hole, and a lower end formed in the bottom surface, the upper end of the valve rod extending into the lower hole in the mounting seat; and the control rod has a cylindrical rod body that is disposed rotatably within the intermediate hole in the mounting seat and that is formed with a projection which has a cam surface constituting the pressing face, the release face being shaped as a curved surface that has a uniform curvature radius, that is aligned with the pressing face along a transverse direction of the control rod, and that has two opposite sides which are connected respectively to two opposite sides of the pressing face.
- ll.The handle-adjusting device as claimed in Claim 10, further comprising a ball that is disposed within the lower hole in the mounting seat between the upper end of the valve rod and the control rod, the upper end of the valve rod being biased to press the ball against the control rod.
- 12.The handle-adjusting device as claimed in Claim 11, wherein the pressing face has a central portion that is formed with a circular cavity which engages the ball. l N 16
- 13.The handle-adjusting device as claimed in Claim 10, wherein the front surface of the mounting seat is formed with a stop rod that extends perpendicularly therefrom, the outward flange of the control rod being formed with a limiting projection that extends radially and outwardly therefrom and that is rotatable relative to the mounting seat to abut against the stop rod of the mounting seat when the pressing face of the control rod is aligned with the upper end of the valve rod.
- 14.The handle-adjusting device as claimed in Claim 10, wherein the mounting seat has a front surface; the control rod is formed with an outward flange at a front distal end thereof, and an internally threaded rear end, the outward flange having a rear side surface abutting against the front surface of the mounting seat so as to prevent rearward removal of the control rod from the intermediate hole in the mounting seat; and the handle-adjusting device further comprises an L-shaped rotary knob that has an externally threaded front end which engages the internally threaded rear end of the control rod.
- 15.A handle-adjusting device for adjusting the position of a handle relative to a vehicle frame substantially as hereinbefore described with reference to and as illustrated in Figures 2 to 10 of the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0330117A GB2409704A (en) | 2003-12-30 | 2003-12-30 | Device for adjusting the angular position of a handle relative to a vehicle frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0330117A GB2409704A (en) | 2003-12-30 | 2003-12-30 | Device for adjusting the angular position of a handle relative to a vehicle frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0330117D0 GB0330117D0 (en) | 2004-02-04 |
| GB2409704A true GB2409704A (en) | 2005-07-06 |
Family
ID=31503252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0330117A Withdrawn GB2409704A (en) | 2003-12-30 | 2003-12-30 | Device for adjusting the angular position of a handle relative to a vehicle frame |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2409704A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4408800A (en) * | 1980-06-11 | 1983-10-11 | American Seating Company | Office chairs |
| EP0236234A2 (en) * | 1986-03-05 | 1987-09-09 | Eurosit | Resilient, lockable device forming a variable length bracket |
-
2003
- 2003-12-30 GB GB0330117A patent/GB2409704A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4408800A (en) * | 1980-06-11 | 1983-10-11 | American Seating Company | Office chairs |
| EP0236234A2 (en) * | 1986-03-05 | 1987-09-09 | Eurosit | Resilient, lockable device forming a variable length bracket |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0330117D0 (en) | 2004-02-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |