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NL2005592A - Foldable stem assembly for a bicycle. - Google Patents

Foldable stem assembly for a bicycle. Download PDF

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Publication number
NL2005592A
NL2005592A NL2005592A NL2005592A NL2005592A NL 2005592 A NL2005592 A NL 2005592A NL 2005592 A NL2005592 A NL 2005592A NL 2005592 A NL2005592 A NL 2005592A NL 2005592 A NL2005592 A NL 2005592A
Authority
NL
Netherlands
Prior art keywords
handlebar
segment
clamping
handle
pin assembly
Prior art date
Application number
NL2005592A
Other languages
Dutch (nl)
Other versions
NL2005592C2 (en
Inventor
Tilmann Schultes
Original Assignee
Ttgens & Engels Gmbh & Co Kg
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ttgens & Engels Gmbh & Co Kg filed Critical Ttgens & Engels Gmbh & Co Kg
Publication of NL2005592A publication Critical patent/NL2005592A/en
Application granted granted Critical
Publication of NL2005592C2 publication Critical patent/NL2005592C2/en

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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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F16B7/044—Clamping or clipping connections for rods or tubes being in angled relationship
    • F16B7/048—Clamping or clipping connections for rods or tubes being in angled relationship for rods or for tubes without using the innerside thereof
    • F16B7/0493—Clamping or clipping connections for rods or tubes being in angled relationship for rods or for tubes without using the innerside thereof forming a crossed-over connection
    • 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
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
    • F16B2/065—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using screw-thread elements

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Clamps And Clips (AREA)

Abstract

The present invention relates to a rotate-to-fold bicycle handlebar stem, which comprises a handlebar joint that is securely clamped to an upper end of a coupling tube. The handlebar joint comprises a clamping section that clamps on the upper end of the coupling tube and a handlebar fitting section that is coupled with a bicycle handlebar. The clamping section of the handlebar joint is provided with a clamping structure that clamps two side surfaces of the handlebar joint toward each other and a constraint device that is arranged between the clamping structure and the coupling tube. The constraint device functions to prevent the handlebar joint from rotating with respect to the coupling tube when the clamping structure is in a locked condition, whereby when the locked condition of the clamping structure is released, the bicycle handlebar is allowed to rotate to a position to be parallel to a longitudinal direction of the bicycle so as to reduce the volume of the bicycle after folding and facilitate storage and shipping of the bicycle.

Description

FOLDABLE STEM ASSEMBLY FOR A BICYCLE
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a handle steam assembly for a bicycle, and more particularly to foldable a handle steam assembly for a bicycle.
2. Description of Related Art
Bicycles are popular due to environment friendly and exercising capabilities. To reduce spaces for storing and transporting bicycles, bicycles are designed to be foldable. However, after a conventional bicycle being folded, the grip of the bicycle still keeps substantially perpendicular to a longitudinal axis of the bicycle. Thus, the conventional bicycle cannot be folded to a minimum space.
SUMMARY OF THE INVENTION
To overcome the shortcomings, the present invention tends to provide a stem assembly to mitigate or obviate the aforementioned problems.
The main objective of the invention is to provide a foldable stem assembly for a bicycle that can allow a grip of the bicycle being rotate to be parallel with a longitudinal axis of the bicycle to reduce the volume of the bicycle and make the bicycle easily and conveniently being stored and transported.
To achieve the above objective, the present invention provides a steam assembly for a bicycle comprising: a connecting tube; a grip mount mounted adjustably on a top of the connecting tube and comprising a clamping segment clamping on the top of the connecting tube, being C-shaped in cross section and having two sides and two through holes defined respectively through the sides and aligning with each other; and a grip mounting segment adapted for holding a grip of the bicycle; a clamping device mounted on the clamping segment of the grip mount to clamp the sides of the clamping segment on the grip being close to each other and to allow the grip mount being rotated relative to the connecting tube after the clamping device being released; and a limiting device mounted between the claming device and the connecting tube to keep the grip mount from rotating relative to the connecting tube when the clamping device is in a locked condition.
Wherein, the clamping device comprises a pivotal bolt mounted through the through holes in the clamping segment and having an engaging segment formed on a middle of the pivotal bolt; and two threads formed on the pivotal bolt respectively on two sides of the engaging segment and each having a spiral direction opposite to each other; two clamping blocks screwed respectively on the threads on the pivotal bolt and abutting respectively against the sides of the clamping segment; and a lever mounted securely around the engaging segment of the pivotal bolt to drive the pivotal bolt rotating to the grip mount.
Wherein, the connecting tube further has a curved guiding slot defined near the top of the connecting tube and having a curvature of 90° and two positioning cavities defined respectively in two ends of the guiding slot; the grip mount further has a positioning pin mounted on the clamping segment and mounted slidably in the guiding slot in the connecting tube; and a spring mounted between the connecting tube and the grip mount and having two ends abutting respectively with the top of the connecting tube and an inner surface of the clamping segment of the grip mount.
Wherein, the limiting device comprises an engaging hole defined in the connecting tube near the top of the connecting hole; and a protrusion protruding from the lever and selectively engaging the engaging hole in the connecting tube.
Wherein, the engaging segment of the pivotal bolt has a non-circular cross section; and the lever has a non-circular hole defined in the lever and mounted securely around the engaging segment of the pivotal bolt.
Wherein, the lever further has an engaging block embedded in the lever and having a non-circular hole defined through the engaging block and mounted securely around the engaging segment of the pivotal bolt; and the protrusion is formed on the engaging block and extends out from the lever.
Wherein, the stem assembly further comprises a holding block mounted pivotally on the top of the clamping segment of the grip mount with a pivot and engaging the lever; and a torsion spring mounted around the pivot and having two ends abutting respectively with the clamping segment and the holding block.
Wherein, the holding block has a hook formed on the holding block at an end opposite to the pivot; and lever has a hook hole defined in a top of the lever and engaging the hook on the holding block.
Wherein, each clamping block comprises a body mounted in a corresponding one of the through holes in the clamping segment; a threaded hole defined in the body and screwed with a corresponding one of the threads on the pivotal bolt; and an abutting flange formed around one end of the body and abutting against a corresponding one of the sides of the clamping segment.
Wherein, the body of each clamping block has a circular cross section.
Wherein, the clamping segment of the grip mount further has a securing bolt mounted on one of the sides of the clamping segment, extending into the through hole in the side and abutting against a corresponding clamping block.
Wherein, the clamping device further has two caps mounted respectively on the sides of the clamping segment of the grip mount to cover the through holes and the clamping blocks .
Wherein, the grip mounting segment is formed integrally on the top of and perpendicular to the clamping segment and has a C-shaped cross section to define an opening and a screw mounted on the grip mounting segment through the opening to narrow the opening.
With the stem assembly in accordance with the present invention, the following advantages can be achieved.
1. After unlocking the clamping device to release the clamping effect provided by the clamping device and applied to clamping segment, the grip mount can be rotated relative to the connecting tube. Thus, the grip of the bicycle can be rotated to a position where is substantially parallel to a longitudinal axis of the bicycle. Accordingly, the volume of the bicycle can be reduced even minimized to make the bicycle being easily and conveniently stored and transported.
2. With the arrangement of the limiting device, the grip mount is held firmly at the expanded or folded position relative to and kept from rotating from the connecting tube.
3. With the 90° curvature of the guiding slot, an angle limiting effect is provided to the grip mount and the grip mount can be rotated quickly and precisely to an expanded or folded position.
4. With the force provided by the spring mounted between the connecting tube and the grip mount, the positioning pin can enter automatically into one of the positioning cavities after the grip mount is rotated a desired angle relative to the connecting tube. Thus, an automatically positioning effect is provided.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENT
With reference to Figs. 1 to 3, a steam assembly for a bicycle in accordance with the present invention comprises a connecting tube (10), a grip mount (20), a clamping device (30), a limiting device and a spring (50). The connecting tube (10) is adapted to be inserted into a front fork of the bicycle with fasteners, such as bolts. The connecting tube (10) has a guiding slot (12). The guiding slot (12) is curved, is defined laterally near the top of the connecting tube (10) and has a curvature of 90° and two positioning cavities (122). The positioning cavities (122) are defined respectively in two ends of the guiding slot (12).
The grip mount (20) is mounted on the top of the connecting tube (10) and comprises a clamping segment (22) and a grip mounting segment (24). The clamping segment (22) is mounted and clamps on the top of the connecting tube (10), is C-shaped in cross section and has two sides and two through holes (224). With the C-shaped cross section, the clamping segment (22) has an opening (222) defined along the clamping segment (22). The through holes (224) are defined respectively through the sides and align with each other.
The grip mount (20) further has a positioning pin (23) mounted on the clamping segment (22) and mounted slidably in the guiding slot (12). The grip mounting segment (24) is mounted or formed integrally on the top of and perpendicular to the clamping segment (22) and is adapted for holding a grip (70) of the bicycle. The grip mounting segment (24) has a C-shaped cross section to define an opening. A screw (242) is mounted on the grip mounting segment (24) through the opening to narrow the opening and to securely hold the grip (70) on the grip mounting segment (24).
With further reference to Figs. 4 and 5, the clamping device (30) is mounted on the clamping segment (22) of the grip mount (20) and comprises a pivotal bolt (32), two clamping blocks (34), two caps (36) and a lever (40). The pivotal bolt (32) is mounted through the through holes (224) in the clamping segment (22) and has an engaging segment (322) and two threads (324) . The engaging segment (322) is formed on a middle of the pivotal bolt (32) and has a noncircular cross section. The threads (324) are formed on the pivotal bolt (32) respectively on two sides of the engaging segment (322) and each has a spiral direction opposite to each other. The clamping blocks (34) are screwed respectively on the threads (324) on the pivotal bolt (32) and abut respectively against the sides of the clamping segment (22). Each clamping block (34) comprises a body (342), a threaded hole (343) and an abutting flange (344). The body (342) is mounted in a corresponding one of the through holes (224) in the clamping segment (22) and has a circular cross section. The threaded hole (343) is defined in the body (342) and is screwed with a corresponding one of the threads (324) on the pivotal bolt (32). The abutting flange (344) is formed around one end of the body (342) and abuts against a corresponding one of the sides of the clamping segment (22). In addition, the clamping segment (22) of the grip mount (20) further has a securing bolt (25) mounted on one of the sides of the clamping segment (22), extending into the through hole (224) in the side and abutting against a corresponding clamping block (34). With the arrangement of the securing bolt (25) , the corresponding clamping block (34) can be securely held and kept from rotating and moving relative to the corresponding through hole (224). The caps (36) are mounted respectively on the sides of the clamping segment (22) of the grip mount (20) to cover the through holes (224) and the clamping blocks (34).
The lever (40) is mounted securely around the engaging segment (322) of the pivotal bolt (32) to drive the pivotal bolt (32) rotating to the grip mount (20) and is held in and closes the opening (222) in the clamping segment (22) of the grip mount (20). The lever (40) has a non-circular hole (402) defined in the lever (40) and mounted securely around the engaging segment (322) of the pivotal bolt (32). With the engagement between the non-circular hole (402) and the engaging segment (322), the pivotal bolt (32) can be rotated with the lever (40) and the lever (40) is connected pivotally to the clamping segment (22) of the grip mount (20) with the pivotal bolt (32). The lever (40) may be plastic and further has an engaging block (42) embedded in the lever (40). The engaging block (42) is metal and has a non-circular hole (422) defined through the engaging block (42) and mounted securely around the engaging segment (322) of the pivotal bolt (32). With the metal engaging block (42), the combination strength between the lever (40) and the pivotal bolt (32) is enhanced.
A holding block (44) is mounted pivotally on the top of the clamping segment (22) of the grip mount (20) with a pivot and engages the lever (40). The holding block (44) has a hook (442) formed on the holding block (44) at an end opposite to the pivot. The lever (40) further has a hook hole (406) defined in a top of the lever (40) and engaging the hook (442) on the holding block (44). With the engagement between the hook (442) and the hook hole (406), the lever (40) can be kept at a position where closing the opening (222) of the clamping segment (22) of the grip mount (20) by the holding block. Thus, the outer surface and appearance of the clamping segment (22) are smooth. A torsion spring (46) is mounted around the pivot and has two ends abutting respectively with the clamping segment (22) and the holding block (44). Accordingly, the holding block (44) can be pushed outward relative to the clamping segment (22) with the force provided by the torsion spring (46).
The limiting device is mounted between the clamping device (30) and the connecting tube (10) to keep the grip mount (20) from rotating relative to the connecting tube (10) when the clamping device (30) is in a locked condition. The limiting device comprises an engaging hole (14) and a protrusion. The engaging hole (14) is defined near the top of the connecting hole (10). The protrusion (404) protrudes from the lever (40) and selectively engaging the engaging hole (14) in the connecting tube (10). In a preferred embodiment, the protrusion (404) is formed on the engaging block (42) and extends out from the lever (40).
The spring (50) is mounted between the connecting tube (10) and the grip mount (20) and has two ends abutting respectively with the top of the connecting tube (10) and an inner surface of the clamping segment (22) of the grip mount (20). The spring (50) can provide a force to push the grip mount (20) upward to make the positioning pin (23) being held in one of the positioning cavities (122) in the connecting tube (10) automatically.
When the lever (40) engages the holding block (44) and is held at the position where closing the opening (222) of the clamping segment (22), the clamping blocks (34) will abut against the sides of the clamping segment (22) to narrow the opening (222) of the claming segment (22). Accordingly, the connecting tube (10) is securely clamped by the clamping segment (22), and the grip mount (20) can be positioned relative to the connecting tube (10) at a specific position, such as an expanded and riding condition of the bicycle. At the expanded position, the grip (70) of the bicycle is substantially perpendicular to the longitudinal axis of the bicycle to allow the rider to control the bicycle.
To fold the bicycle, with reference to Figs. 4 to 7, the holding block (44) is pushed to disengage the hook (442) from the hook hole (406) in the lever (40) and the lever (40) can be pivoted relative to the clamping segment (22). When the lever (40) is pivoted, the pivotal bolt (32) can be rotated relative to the grip mount (20) due to the engagement between the engaging segment (322) and the noncircular holes (402,422) . Because one of the clamping blocks (34) are fixed securely by the securing bolt (25), the pivotal bolt (32) can be moved relative to the fixed clamping block (34) to make the other clamping block (34) away from the fixed clamping block (34). Consequently, the opening (222) of the clamping segment (20) can be released to make the grip mount (20) rotatable relative to the connecting tube (10). Accordingly, the grip mount (20) can be rotated relative to the connecting tube (10) 90° to a position where the grip (70) is substantially parallel with the longitudinal axis of the bicycle as shown in Fig. 8. Thus, the bicycle can be folded to a reduced even a minimized volume to make the bicycle being easily and conveniently stored and transported.
When the lever (40) is pivoted in reverse to make the lever (40) closing the opening (222) of the clamping segment (22), the clamping block (34) can be moved closely to the fixed clamping block (34) along the thread (324) on the pivotal bolt (32) to clamp against the sides of the clamping segment (22). Accordingly, the grip mount (20) can be held securely relative to the connecting tube (10) at a position where the bicycle is folded.
When the lever (40) is at the position where closing the opening (222) of the clamping segment (22), the protrusion (404) on the lever (40) will enter and engage the engaging hole (14) in the connecting tube (10). Accordingly, the grip mount (20) can be held at the expanded or folded position relative to and kept from rotating from the connecting tube (10).
During the grip mount (20) is rotated relative to the connecting tube, the positioning pin (23) will slide along the guiding slot (12). With the 90° curvature of the guiding slot (12), the grip mount (20) can be rotated quickly and precisely to a desired position, such as an expanded or folded position. Furthermore, with the force provided by the spring (50) to lift the grip mount (20) upwardly, the positioning pin (23) can enter automatically into one of the positioning cavities (122) after the grip mount (20) is rotated 90° relative to the connecting tube (10). Thus, an automatically positioning effect is provided.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a perspective view of a stem assembly in accordance with the present invention;
Fig. 2 is another perspective view of the stem assembly in Fig. 1;
Fig. 3 is an exploded perspective view of the stem assembly in Fig. 1;
Fig. 4 is an enlarged top view in partial section of the stem assembly in Fig. 1;
Fig. 5 is an operational side view in partial section of the stem assembly in Fig. 1 showing the holding block being pushed;
Fig. 6 is an operational side view in partial section of the stem assembly in Fig. 1 showing the lever being pivoted;
Fig. 7 is an enlarged operational top view in partial section of the stem assembly in Fig. 1 showing the clamping segment being released; and
Fig. 8 is an operational top view of the stem assembly in Fig. 1 showing the grip mount being rotated.
REFERENCED NUMBER LIST
(10) connecting tube (12) guiding slot (122) positioning cavities (14) engaging hole (20) grip mount (22) clamping segment (222) opening (224) through hole (23) positioning pin (24) grip mounting segment (242) screw (30) clamping device (32) pivotal bolt (322) engaging segment (324) thread (34) clamping block (342) body (343) threaded hole (344) abutting flange (36) cap (40) lever (402) non-circular hole (404) protrusion (406) hook hole (42) engaging block (422) non-circular hole (44) holding block (422) hook (46) torsion spring (50) spring (70) grip

Claims (22)

1. Stuurpensamenstel voor een rijwiel, omvattende: een verbindingsbuis; een stuurbevestiging die instelbaar aangebracht is aan de bovenzijde van de verbindingsbuis en die omvat: een klemsegment dat klemmend aangrijpt op de bovenzijde van de verbindingsbuis, dat C-vormig is in doorsnede en dat twee zijden vertoont, alsmede twee doorgaande openingen die respectievelijk door de zijden gevormd zijn en met elkaar op één lijn liggen; en een stuurbevestigingssegment dat ingericht is voor het vasthouden van een stuur van het rijwiel; een kleminrichting die zodanig aangebracht is op het klemsegment van de stuurbevestiging dat de nabij elkaar gelegen zijden van het klemsegment om het stuur geklemd worden en de stuurbevestiging kan worden geroteerd ten opzicht van de verbindingsbuis nadat de kleminrichting losgenomen is; en een begrenzingsinrichting die tussen de kleminrichting en de verbindingsbuis aangebracht is teneinde te voorkomen dat de stuurbevestiging roteert ten opzichte van de verbindingsbuis wanneer de kleminrichting zich in een vergrendelde toestand bevindt.A handlebar pin assembly for a bicycle, comprising: a connecting tube; a handlebar mount which is adjustably arranged on the top of the connecting tube and which comprises: a clamping segment that grips clampingly on the top of the connecting tube, which is C-shaped in section and has two sides, as well as two through openings respectively through the sides are formed and aligned with each other; and a handlebar mounting segment adapted to hold a handlebar of the bicycle; a clamping device mounted on the clamping segment of the handlebar attachment such that the adjacent sides of the clamping segment are clamped around the handlebar and the handlebar attachment can be rotated relative to the connecting tube after the clamping device has been released; and a limiting device disposed between the clamping device and the connecting pipe to prevent the steering attachment from rotating relative to the connecting pipe when the clamping device is in a locked state. 2. Stuurpensamenstel volgens conclusie 1, waarbij de kleminrichting omvat: een zwenkbare bout die door de doorgaande openingen in het klemsegment aangebracht is en die voorzien is van: een aangrijpingssegment dat gevormd is in het midden van de zwenkbare bout; twee schroefdraden die respectievelijk aan weerszijden van het aangrijpingssegment op de zwenkbare bout gevormd zijn en die elk een aan elkaar tegengestelde spoedrichting vertonen; twee klemblokken die respectievelijk op de schroefdraden van de zwenkbare bout geschroefd zijn en respectievelijk tegen de zijden van het klemsegment steunen; en een hendel die vast bevestigd is rond het aangrijpingspunt van de zwenkbare bout om de zwenkbare bout roterend aan te drijven in de stuurbevestiging.Steering pin assembly according to claim 1, wherein the clamping device comprises: a pivotable bolt which is arranged through the through openings in the clamping segment and which is provided with: an engagement segment which is formed in the middle of the pivotable bolt; two threads formed on the pivotable bolt on either side of the engaging segment, respectively, and each having an opposite direction of pitch; two clamping blocks which are respectively screwed onto the threads of the pivoting bolt and which respectively bear against the sides of the clamping segment; and a handle that is fixedly fixed about the point of engagement of the pivotable bolt for rotating the pivotable bolt in the handlebar mount. 3. Stuurpensamenstel volgens conclusie 2, waarbij: de verbindingsbuis verder een gekromde geleidingssleuf vertoont die gevormd is nabij de bovenzijde van de verbindingsbuis en die een kromming van 90° vertoont, alsmede twee positioneringsholten die respectievelijk in twee einden van de geleidingssleuf bepaald zijn; waarbij de stuurbevestiging verder een positioneringspen vertoont die aangebracht is in het klemsegment en die verschuifbaar aangebracht is in de geleidingssleuf in de verbindingsbuis; en waarbij een veer aangebracht is tussen de verbindingsbuis en de stuurbevestiging, die twee einden heeft die respectievelijk aangrijpen op de bovenzijde van de verbindingsbuis en op een binnenoppervlak van het klemsegment van de stuurbevestiging.The handlebar pin assembly of claim 2, wherein: the connecting tube further has a curved guide slot formed near the top of the connecting tube and having a 90 ° curvature, as well as two positioning cavities defined in two ends of the guide slot respectively; wherein the handlebar mounting further comprises a positioning pin which is arranged in the clamping segment and which is slidably arranged in the guide slot in the connecting tube; and wherein a spring is arranged between the connecting tube and the handlebar mount, which has two ends that respectively engage on the top of the connecting tube and on an inner surface of the clamping segment of the handlebar mount. 4. Stuurpensamenstel volgens conclusie 2 of 3, waarbij de begrenzingsinrichting omvat: een aangrijpingsopening die gevormd is in de verbindingsbuis nabij de bovenzijde van de verbindingsbuis; en een uitsteeksel dat uitsteekt vanaf de hendel en dat selectief kan aangrijpen in de aangrijpingsopening in de verbindingsbuis.Control handle assembly according to claim 2 or 3, wherein the limiting device comprises: an engagement opening formed in the connecting tube near the top of the connecting tube; and a protrusion that protrudes from the handle and that can selectively engage in the engagement opening in the connecting tube. 5. Stuurpensamenstel volgens conclusie 4, waarbij het aangrijpingssegment van de zwenkbare bout een nietcirkelvormige doorsnede vertoont; en de hendel een niet-cirkelvormige opening vertoont die gevormd is in de hendel en die vast bevestigd is rond het aangrijpingssegment van de zwenkbare bout.The handlebar pin assembly of claim 4, wherein the engagement segment of the pivotable bolt has a non-circular cross-section; and the handle has a non-circular opening formed in the handle and fixedly secured around the engagement segment of the pivotable bolt. 6. Stuurpensamenstel volgens conclusie 5, waarbij de hendel verder een aangrijpingsblok omvat dat ingebed is in de hendel en dat een niet-cirkelvormige opening vertoont dat bepaald is door het aangrijpingsblok en die vast bevestigd is rond het aangrijpingssegment van de zwenkbare bout; en waarbij het uitsteeksel gevormd is op het aangrijpingsblok en uitsteekt vanuit de hendel.The handlebar pin assembly of claim 5, wherein the handle further comprises an engagement block embedded in the handle and having a non-circular aperture defined by the engagement block and fixedly secured about the engagement segment of the pivotable bolt; and wherein the protrusion is formed on the engagement block and protrudes from the handle. 7. Stuurpensamenstel volgens conclusie 6, verder omvattende: een vasthoudblok dat door middel van een zwenkas zwenkbaar aangebracht is op de bovenzijde van het klemsegment van de stuurbevestiging en dat aangrijpt op de hendel; en een torsieveer die rond de zwenkas aangebracht is en die twee einden vertoont die respectievelijk aangrijpen op het klemsegment en op het vasthoudblok.The handlebar pin assembly of claim 6, further comprising: a holding block pivotally mounted on the top of the handlebar clamping segment by means of a pivot axis and engaging the handle; and a torsion spring disposed around the pivot axis and having two ends which respectively engage the clamping segment and the retaining block. 8. Stuurpensamenstel volgens conclusie 7, waarbij het vasthoudblok een haak vertoont die op het vasthoudblok gevormd is aan een tegenover de zwenkas gelegen einde; en de hendel een haakopening vertoont die gevormd is in een bovenzijde van de hendel en die aangrijpt op de haak van het vasthoudblok.The handlebar pin assembly of claim 7, wherein the retaining block has a hook formed on the retaining block at an end opposite the pivot axis; and the handle has a hook opening formed in an upper side of the handle and engaging the hook of the retaining block. 9. Stuurpensamenstel volgens conclusie 8, waarbij elk klemblok omvat: een lichaam dat aangebracht is in een overeenkomstige doorgaande opening in het klemsegment; een schroefdraadopening die gevormd is in het lichaam en die een schroefverbinding vormt met een overeenkomstige schroefdraad op de zwenkbare bout; en een steunflens die gevormd is rond één uiteinde van het lichaam en die steunt tegen een overeenkomstige zijde van het klemsegment.The control pin assembly of claim 8, wherein each clamp block comprises: a body disposed in a corresponding through-opening in the clamp segment; a threaded opening formed in the body and forming a threaded connection with a corresponding thread on the pivotable bolt; and a support flange that is formed around one end of the body and that rests against a corresponding side of the clamping segment. 10. Stuurpensamenstel volgens conclusie 9, waarbij het lichaam van elk klemblok een cirkelvormige doorsnede vertoont.The handlebar pin assembly of claim 9, wherein the body of each clamp block has a circular cross-section. 11. Stuurpensamenstel volgens conclusie 10, waarbij het klemsegment van de stuurbevestiging verder een zekeringsbout vertoont die aangebracht is aan één van de zijden van het klemsegment, die zich uitstrekt in de doorgaande opening in de zijde en die steunt tegen een overeenkomstig klemblok.The handlebar pin assembly according to claim 10, wherein the clamping segment of the handlebar attachment further comprises a securing bolt mounted on one of the sides of the clamping segment, which extends into the continuous opening in the side and which rests against a corresponding clamping block. 12. Stuurpensamenstel volgens conclusie 11, waarbij de kleminrichting verder twee kappen vertoont die respectievelijk aan de zijden van het klemsegment van de stuurbevestiging zijn aangebracht teneinde de doorgaande openingen en de klemblokken af te dekken.The handlebar pin assembly of claim 11, wherein the clamping device further comprises two caps which are respectively mounted on the sides of the clamping segment of the handlebar mount to cover the through openings and the clamping blocks. 13. Stuurpensamenstel volgens conclusie 12, waarbij het stuurbevestigingssegment als één geheel gevormd is aan de bovenzijde van en dwars op het klemsegment, en een C-vormige doorsnede vertoont teneinde een opening te bepalen, alsmede een schroef die bevestigd is in het stuurbevestigingssegment door de opening teneinde de opening te verkleinen.The handlebar pin assembly of claim 12, wherein the handlebar mounting segment is integrally formed on the top of and transversely of the clamping segment, and has a C-shaped cross section to define an opening, as well as a screw mounted in the handlebar mounting segment through the opening to reduce the opening. 14. Stuurpeninrichting volgens conclusie 2 of 3, waarbij het aangrijpingssegment van de zwenkbare bout een niet-cirkelvormige doorsnede vertoont en de hendel een nietcirkelvormige opening vertoont die in de hendel gevormd is en die vast bevestigd is rond het aangrijpingsdeel van de zwenkbare bout.Steerer pin device according to claim 2 or 3, wherein the engagement segment of the pivotable bolt has a non-circular cross-section and the handle has a non-circular opening formed in the handle and which is fixedly secured around the engagement part of the pivotable bolt. 15. Stuurpensamenstel volgens conclusie 14, waarbij de hendel verder een aangrijpingsblok vertoont dat ingebed is in de hendel en dat een niet-cirkelvormige opening vertoont die door het aangrijpingsblok gevormd is en die vast bevestigd is rond het aangrijpingssegment van de zwenkbare bout; en het uitsteeksel op het aangrijpingsblok gevormd is en uitsteekt buiten de hendel.The handlebar pin assembly of claim 14, wherein the handle further includes an engagement block that is embedded in the handle and that has a non-circular opening formed by the engagement block and fixedly secured around the engagement segment of the pivotable bolt; and the protrusion is formed on the engagement block and protrudes outside the handle. 16. Stuurpensamenstel volgens conclusie 2 of 3, verder omvattende: een vasthoudblok dat door middel van een zwenkas zwenkbaar aangebracht is aan de bovenzijde van het klemsegment van de stuurbevestiging en dat aangrijpt op de hendel; en een torsieveer die aangebracht is rond de zwenkas en die twee einden vertoont die respectievelijk afsteunen tegen het klemsegment en het vasthoudblok.The handlebar pin assembly according to claim 2 or 3, further comprising: a holding block pivotally mounted on the top of the handlebar clamping segment by means of a pivot axis and engaging the handle; and a torsion spring arranged around the pivot axis and having two ends which respectively support against the clamping segment and the retaining block. 17. Stuurpensamenstel volgens conclusie 16, waarbij het vasthoudblok een haak vertoont die op het vasthoudblok gevormd is aan een tegenover de zwenkas gelegen einde; en de hendel een haakopening vertoont die gevormd is in een bovenzijde van de hendel en die aangrijpt op de haak van het vasthoudblok.The handlebar pin assembly of claim 16, wherein the retaining block includes a hook formed on the retaining block at an end opposite the pivot axis; and the handle has a hook opening formed in an upper side of the handle and engaging the hook of the retaining block. 18. Stuurpensamenstel volgens conclusie 2 of 3, waarbij elk klemblok omvat: een lichaam dat aangebracht is in een overeenkomstige doorgaande opening in het klemsegment; een schroefdraadopening die gevormd is in het lichaam en die een schroefverbinding vormt met een overeenkomstige schroefdraad op de zwenkbare bout; en een steunflens die gevormd is rond één uiteinde van het lichaam en die steunt tegen een overeenkomstige zijde van het klemsegment.The handlebar pin assembly of claim 2 or 3, wherein each clamping block comprises: a body disposed in a corresponding through-opening in the clamping segment; a threaded opening formed in the body and forming a threaded connection with a corresponding thread on the pivotable bolt; and a support flange that is formed around one end of the body and that rests against a corresponding side of the clamping segment. 19. Stuurpensamenstel volgens conclusie 18, waarbij het lichaam van elk klemblok een cirkelvormige doorsnede vertoont.The handlebar pin assembly of claim 18, wherein the body of each clamp block has a circular cross-section. 20. Stuurpensamenstel volgens conclusie 19, waarbij het klemsegment van de stuurbevestiging verder een zekeringsbout vertoont die aangebracht is aan één van de zijden van het klemsegment, die zich uitstrekt in de doorgaande opening in de zijde en die steunt tegen een overeenkomstig klemblok.The handlebar pin assembly according to claim 19, wherein the clamping segment of the handlebar attachment further comprises a securing bolt mounted on one of the sides of the clamping segment, which extends into the continuous opening in the side and which rests against a corresponding clamping block. 21. Stuurpensamenstel volgens conclusie 1, 2 of 3, waarbij de kleminrichting verder twee kappen vertoont die respectievelijk aan de zijden van het klemsegment van de stuurbevestiging zijn aangebracht teneinde de doorgaande openingen en de klemblokken af te dekken.The handlebar pin assembly according to claim 1, 2 or 3, wherein the clamping device further comprises two caps which are arranged on the sides of the clamping segment of the handlebar mount respectively to cover the through openings and the clamping blocks. 22. Stuurpensamenstel volgens conclusie 1, 2 of 3, waarbij het stuurbevestigingssegment als één geheel gevormd is aan de bovenzijde van en dwars op het klemsegment, en een C-vormige doorsnede vertoont teneinde een opening te bepalen, alsmede een schroef die bevestigd is in het stuurbevestigingssegment door de opening teneinde de opening te verkleinen.The handlebar pin assembly of claim 1, 2 or 3, wherein the handlebar mounting segment is integrally formed on the top of and transversely of the clamping segment, and has a C-shaped cross-section to define an opening, as well as a screw mounted in the handlebar mounting segment through the opening to reduce the opening.
NL2005592A 2009-11-17 2010-10-28 Foldable stem assembly for a bicycle. NL2005592C2 (en)

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TW098138978A TWI381972B (en) 2009-11-17 2009-11-17 Rotary bike handle stand

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GB2491827A (en) * 2011-06-10 2012-12-19 Liam Howard Bicycle
CN107176253A (en) * 2017-06-13 2017-09-19 程扬 A kind of folding stand pipe of angle adjustable
US11155318B2 (en) 2017-07-10 2021-10-26 Henry Chong Device for selective rotation of vehicular handlebar
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GB2491827A (en) * 2011-06-10 2012-12-19 Liam Howard Bicycle
CN107176253A (en) * 2017-06-13 2017-09-19 程扬 A kind of folding stand pipe of angle adjustable
US11155318B2 (en) 2017-07-10 2021-10-26 Henry Chong Device for selective rotation of vehicular handlebar
FR3153071A1 (en) 2023-09-19 2025-03-21 Bastille Cycles Bicycle stem
EP4527726A1 (en) 2023-09-19 2025-03-26 Bastille Cycles Bicycle stem

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TW201118000A (en) 2011-06-01
TWI381972B (en) 2013-01-11

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