GB2410291A - Locking device - Google Patents

Locking device Download PDF

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Publication number
GB2410291A
GB2410291A GB0401347A GB0401347A GB2410291A GB 2410291 A GB2410291 A GB 2410291A GB 0401347 A GB0401347 A GB 0401347A GB 0401347 A GB0401347 A GB 0401347A GB 2410291 A GB2410291 A GB 2410291A
Authority
GB
United Kingdom
Prior art keywords
tube
inner tube
locking device
enclosure
positioning rod
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.)
Granted
Application number
GB0401347A
Other versions
GB2410291B (en
GB0401347D0 (en
Inventor
Wu-Hong Hsieh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KHS Musical Instrument Co Ltd
Original Assignee
KHS Musical Instrument Co Ltd
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 KHS Musical Instrument Co Ltd filed Critical KHS Musical Instrument Co Ltd
Priority to GB0401347A priority Critical patent/GB2410291B/en
Priority to DE202004001261U priority patent/DE202004001261U1/en
Publication of GB0401347D0 publication Critical patent/GB0401347D0/en
Publication of GB2410291A publication Critical patent/GB2410291A/en
Application granted granted Critical
Publication of GB2410291B publication Critical patent/GB2410291B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/242—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by spreading of the legs
    • F16M11/245—Members limiting spreading of legs, e.g. "umbrella legs"
    • 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
    • F16B7/10—Telescoping systems
    • F16B7/105—Telescoping systems locking in discrete positions, e.g. in extreme extended position
    • 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
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
    • F16M11/28—Undercarriages for supports with one single telescoping pillar
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/22—Adjustable mountings telescopic
    • 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
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M2200/00—Details of stands or supports
    • F16M2200/02—Locking means
    • F16M2200/025—Locking means for translational movement
    • F16M2200/028—Locking means for translational movement by positive interaction, e.g. male-female connections

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Steering Controls (AREA)

Abstract

A locking device has an enclosure 20 partially securely mounted on a peripheral edge of an outer tube 10 and having a lever 25 pivotally connected to the enclosure 20; and a positioning rod 26 securely connected to a side of the lever 25 to be driven by the lever 25 and having a head 261 formed on a free end of the positioning rod to correspond to one of plural adjusting recesses 111 of an inner tube 11 such that pivotal movement of the lever 25 drives the head 261 of the positioning rod 26 to selectively move away from the corresponding adjusting recess 111 to allow the inner tube 11 to move relative to the outer tube 10. The locking device may further comprise a bolt 271 screwingly extended through the enclosure 20 to abut block 28 which engages with the inner tube 11 so as to secure it relative to the outer tube 10.

Description

1 2410291
LOCKING DEVICE TO SECURE A TELESCOPIC TUBE ASSEMBLY
1. Field of the Invention
The present invention relates to a locking device, and more particularly to locking device to secure an inner tube in an outer tube of a telescopic tube assembly.
2. Description of Related Art
With reference to Fig. 6, a conventional locking device (50) for a telescopic tube assembly having an outer tube (40) and an inner tube (41) slidably received in the outer tube (40) includes a knob (51) rotatably mounted on a side of the locking device (50).
When the relative position of the inner tube (41) is to be readjusted, the operator has to hold the inner tube (41) to prevent the inner tube (41) from slipping too far into the outer tube (40). Then the operator is able to unscrew the knob (51) and change the relative position ofthe inner tube (41) to the outer tube (40). However, when a distal end of the inner tube (41) is provided with a heavy load, i.e. an illuminating device, the operator has to struggle to hold the weight of the illuminating device. Therefore, assistance from the other operators is essential. That is, it is almost impossible for a lone operator to finish the adjustment of the telescopic tube assembly, especially when a weighty object is on top of the telescopic tube assembly.
To overcome the shortcomings, the present invention tends to provide an improved locking device to mitigate the aforementioned problems.
The primary objective ofthe present invention is to provide an improved locking device to enable a lone operator to safely finish the adjustment of the relative position of the inner tube relative to the outer tube.
Another objective of the present invention is to eliminate danger to the operator by providing a safety device to prevent excessive movement of the inner tube relative to the outer tube.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
In the drawings: Fig. 1 is perspective view of the locking device applied on a telescopic tube assembly; Fig. 2 is schematically cross sectional view of the locking device in Fig. 1; Fig. 3 is a schematic view showing the operation of the locking device of the present invention; Fig. 4 is a schematic view showing the application of the locking device; Fig. 5 is a schematic view showing an illuminating device is mounted on the telescopic assembly with the locking device of the present invention applied thereto; and Fig. 6 is side view showing a conventional locking device applied to a telescopic tube assembly.
With reference to Figs. I and 2, a telescopic tube assembly includes an outer tube (10) and an inner tube (11) slidably received in the outer tube (10).
The inner tube (l l) has multiple adjusting recesses (111) defined in an outer periphery of the inner tube (11) and a guiding groove (112) defined on the outer periphery of the inner tube (11) along a longitudinal axis of the inner tube (11).
A locking device in accordance with the present invention includes an enclosure (20) partially securely mounted on a peripheral edge of the outer tube (40) and having a guide (201) formed on an inner face of the enclosure (20), a first space (21) defined in a side face of the enclosure (20), a first hole (22) defined through a bottom face defining the first space (21), a second hole (23) defined through the enclosure (20) to be opposite to the first hole (22) and a second space (24) defined to communicate with the second hole (23).
Furthermore, a lever (25) is received in the first space (21) and a pin (not shown) is extended through the lever (25) and into opposite side face defining the first space (21) to allow the lever (25) to be pivotally received in the first space (21). A positioning rod (26) is provided with a first distal end securely connected to a side of the lever (25) and a second distal end. The second distal end of the positioning rod (26) is provided with a head (261) corresponding to the adjusting recesses (111). A spring (262) is mounted on the positioning rod (26) and compressibly received in the first hole (22) such that when the positioning rod (26) is moved by the lever (25), the spring (262) is able to provide a recoil force to the positioning rod (26) to return the positioning rod (26). A knob (27) having a bolt (271) integrally formed with the knob (27) is screwingly extended into the second hole (23) to abut an abutting block (28) received in the second space (24) so that the outer periphery of the inner tube (11) is engaged by the abutting block (28). Especially, a safety device is mounted on the outer periphery of the inner tube (11) to prevent excessive movement of the inner tube ( l l) relative to the outer tube (10).
With reference to Fig. 3, it is noted that before the locking device of the present invention is in application, the head (261) of the positioning rod (26) is received in one of the adjusting holes (111) so as to secure the position ofthe inner tube (11) relative to the outer tube (10). When the lever (25) is depressed, the positioning rod (26) leaves the corresponding adjusting recess (111) to allow the operator to adjust the relative position of the inner tube (11) to the outer tube (10). After adjustment of the relative position of the inner tube (11) to the outer tube (10), the spring (262) provides a recoil force to the positioning rod (26) to force the positioning rod (26) to return to its original position such that the head (261) of the positioning rod (26) is received in a corresponding one of the adjusting recesses (111) of the inner tube (11) and the adjustment of the telescopic tube assembly is accomplished.
However, during the adjustment of the telescopic tube assembly, the operator is able to use the abutting block (28) to secure the position of the inner tube (11) in the outer tube (10). That is, the operator is able to use the abutting block (28) to increase the friction between the abutting block (28) and the outer periphery of the inner tube (11) by rotating the knob (27) such that the position of the inner tube (11) in the outer tube (10) is temporarily secured. Alternatively, the operator is able to use the abutting block (28) as an auxiliary securing device to secure the position of the inner tube (11) relative to the outer tube (10) .
Further, the guide (201) slidable in the guiding groove (112) is able to smoothen the sliding movement of the inner tube (11) to the outer tube (10).
Preferably, the safety device (12) which is mounted on the outer periphery of the inner tube (11) is a boss. The boss (12) is integrally formed on the outer periphery of the inner tube (11) such that excessive sliding movement of the inner tube (11) relative to the outer tube (10) is prevented.
With reference to Figs. 4 and 5, it is noted that when a loudspeaker (31) or an illuminating device (32) is mounted on top of the free end of the inner tube (11), the locking device of the present invention is able to safeguard the operator from possible injury by the sudden falling of the inner tube (11) due to the weight on top of the telescopic tube assembly.
It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.

Claims (19)

  1. CLAIMS: 1. A locking device in combination with a telescopic tube
    assembly, the telescopic tube assembly comprising: an outer tube (10); and an inner tube (11) slidably received in the outer tube (10) and having multiple adjusting recesses (111) defined in an outer periphery of the inner tube (1 1); the locking device comprising: an enclosure (20) partially securely mounted on a peripheral edge of the outer tube (10) and having a lever (25) pivotally connected to the enclosure (20); and a positioning rod (26) securely connected to a side ofthe lever (25) to be driven by the lever (25) and having a head (261) formed on a free end of the positioning rod (26) to correspond to one of the adjusting recesses (111) of the inner tube (11) such that pivotal movement of the lever (25) is able to drive the head (261) of the positioning rod (26) to selectively move away from the corresponding adjusting recess (111) to allow the inner tube (11) to move relative to the outer tube (10).
  2. 2. The locking device in combination with a telescopic tube assembly as claimed in claim 1, wherein the locking device further has: a second space (24) defined in the enclosure (20) to be opposite to a first space (21) in the enclosure (20) to receive therein an abutting block (28) to engage with the outer periphery of the inner tube (11); a bolt (271) screwingly extended through the enclosure (20) to abut an outer periphery of the abutting block (28) to force the abutting block (28) to engage with the outer periphery of the inner tube (11) so as to secure position of the inner tube (11) relative to the outer tube (10).
  3. 3. The locking device in combination with a telescopic tube assembly as claimed in claim 2, wherein the enclosure (20) has a first hole (22) in communication with the first space (21) to receive therein the positioning rod (26) such that the positioning rod (26) is able to move inside the first hole (22) and a second hole (23) in communication with the second space (24) to allow an extension of the bolt (271) into the second space (24).
  4. 4. The locking device in combination with a telescopic tube assembly as claimed in claim 2, wherein a spring (262) is mounted around the positioning rod (26) to provide a recoil force to the positioning rod (26) to return the positioning rod (26) to its original position after being driven by the lever (25) to leave the corresponding adjusting recess (111) .
  5. S. The locking device in combination with a telescopic tube assembly as claimed in claim 3, wherein a spring (262) is mounted around the positioning rod (26) to provide a recoil force to the positioning rod (26) to return the positioning rod (26) to its original position after being driven by the lever (25) to leave the corresponding adjusting recess (111) .
  6. 6. The locking device in combination with a telescopic tube assembly as claimed in claim 4, wherein the inner tube (11) has a guiding groove (110) defined in the outer periphery of the inner tube (11) along a longitudinal axis and the enclosure (20) has a guide (201) formed on an inner face of the enclosure (20) to be received in the guiding groove (1 l 0) such that movement of the inner tube (11) relative to the outer tube (lO) is smooth.
  7. 7. The locking device in combination with a telescopic tube assembly as claimed in claim S. wherein the inner tube (11) has a guiding groove ( 110) defined in the outer periphery of the inner tube (11) along a longitudinal axis and the enclosure (20) has a guide (201) formed on an inner face of the enclosure (20) to be received in the guiding groove ( 110) such that movement of the inner tube (11) relative to the outer tube (10) is smooth.
  8. 8. A locking device in combination with a telescopic tube assembly, wherein the telescopic tube assembly comprising: an outer tube (10); and an inner tube (11) slidably received in the outer tube (10) and having multiple adjusting recesses (111) defined in an outer periphery of the inner tube (1 1); the locking device comprising: an enclosure (20) partially securely mounted on a peripheral edge of the outer tube (10) and having a lever (25) pivotally connected to the enclosure (20), a first space (21) defined in a side face ofthe enclosure (20) to receive the lever (25), a second space (24) defined in the enclosure (20) to be opposite to the first space (21) to receive therein an abutting block (28) to engage with the outer periphery of the inner tube (11); a bolt (271) screwingly extended through the enclosure (20) to abut an outer periphery of the abutting block (28) to force the abutting block (28) to engage with the outer periphery of the inner tube ( 11) so as to secure position of the inner (11) tube relative to the outer tube (10); and a positioning rod (26) securely connected to a side of the lever (25) to be driven by the lever (25) and having a head (261) formed on a free end of the positioning rod (26) to correspond to one of the adjusting recesses (111) of the inner tube (11) such that pivotal movement of the lever (25) is able to drive the head (261) of the positioning rod (26) to selectively move away from the corresponding adjusting recess (111) to allow the inner tube (11) to move relative to the outer tube (10).
  9. 9. The locking device in combination with a telescopic tube assembly as claimed in claim 8, wherein the enclosure (20) has a first hole (22) in communication with the first space (21) to receive therein the positioning rod (26) such that the positioning rod (26) is able to move inside the first hole (22) and a second hole (23) in communication with the second space (24) to allow an extension of the bolt (271) into the second space (24).
  10. 10. The locking device in combination with a telescopic tube assembly as claimed in claim 9, wherein a spring (262) is mounted around the positioning rod (26) to provide a recoil force to the positioning rod (26) to return the positioning rod (26) to its original position after being driven by the lever (25) to leave the corresponding adjusting recess (111) .
  11. 11. The.locking device in combination with a telescopic tube assembly as claimed in claim 10, wherein a spring (262) is mounted around the positioning rod (26) to provide a recoil force to the positioning rod (26) to return the positioning rod (26) to its original position after being driven by the lever (25) to leave the corresponding adjusting recess (111) .
  12. 12. The locking device in combination with a telescopic tube assembly as claimed in claim 10, wherein the inner tube (11) has a guiding groove (110) defined in the outer periphery of the inner tube (11) along a longitudinal axis and the enclosure (20) has a guide (201) formed on an inner face of the enclosure (20) to be received in the guiding groove (110) such that movement ofthe inner tube (11) relative to the outer tube (10) is smooth.
  13. 13. The locking device in combination with a telescopic tube assembly as claimed in claim 11, wherein the inner tube (11) has a guiding groove (110) defined in the outer periphery ofthe inner tube (11) along a longitudinal axis and the enclosure (20) has a guide (201) formed on an inner face of the enclosure (20) to be received in the guiding groove (1 10) such that movement of the inner tube (11) relative to the outer tube (10) is smooth.
  14. 14. The locking device in combination with a telescopic tube assembly as claimed in claim 8, wherein a boss (12) is integrally formed on the outer periphery of the inner tube ( 11) to be engage with a peripheral side of the outer tube (10) to prevent excessive movement of the inner tube (11) relative to the outer tube (10).
  15. 15. The locking device in combination with a telescopic tube assembly as claimed in claim 9, wherein a boss (12) is integrally formed on the outer periphery ofthe inner tube (11) to be engage with a peripheral side of the outer tube (10) to prevent excessive movement of the inner tube (11) relative to the outer tube (10).
  16. 16. The locking device in combination with a telescopic tube assembly as claimed in claim 10, wherein a boss (12) is integrally formed on the outer periphery of the inner tube (11) to engage with a peripheral side of the outer tube (10) to prevent excessive movement of the inner tube (11) relative to the outer tube (10).
  17. 17. The locking device in combination with a telescopic tube assembly as claimed in claim 11, wherein a boss (12) is integrally formed on the outer periphery of the inner tube ( 11) to engage with a peripheral side of the outer tube (10) to prevent excessive movement of the inner tube (11) relative to the outer tube (10).
  18. 18. The locking device in combination with a telescopic tube assembly as claimed in claim 12, wherein a boss (12) is integrally formed on the outer periphery of the inner tube (11) to engage with a peripheral side of the outer tube (10) to prevent excessive movement of the inner tube (11) relative to the outer tube (10).
  19. 19. The locking device in combination with a telescopic tube assembly as claimed in claim 13, wherein a boss (12) is integrally formed on the outer periphery of the inner tube (11) to engage with a peripheral side of the outer tube (10) to prevent excessive movement of the inner tube (11) relative to the outer tube (10).
    19. The locking device in combination with a telescopic tube assembly as claimed in claim 13, wherein a boss (12) is integrally formed on the outer periphery of the inner tube (11) to engage with a peripheral side of the outer tube (10) to prevent excessive movement of the inner tube (11) relative to the outer tube (10).
    a Amendments to the claims have been filed as follows ]. A locking device in combination with a telescopic tube assembly, the telescopic tube assembly comprising: an outer tube (10); and an inner tube (11) slidably received in the outer tube (10) and having multiple adjusting recesses (111) defined in an outer periphery of the inner tube (11); the locking device comprising: an enclosure (20) securely mounted on a peripheral edge of the outer tube (10) and having a lever (25) pivotally connected within a first space (21) in the enclosure (20); a positioning rod (26) securely connected to a side of the lever (25) to be driven by the lever (25), and having a head (261) formed on a free end of the positioning rod (26) to correspond to one of the adjusting recesses (111) of the inner tube (11) such that pivotal movement of the lever (25) is able to drive the head (261) of the positioning rod (26) to selectively move away from the corresponding adjusting recess (111) to allow the inner tube (11) to move relative to the outer tube (10); a second space (24) defined in the enclosure (20), opposite the first space (21) in the enclosure (20), to receive therein an abutting block (28) to engage with the outer periphery of the inner tube (11); and a bolt (271) screwingly extended through the enclosure (20) to abut an outer periphery of the abutting block (28) to force the abutting block (28) to engage with the outer periphery of the inner tube (11) so as to secure the position of the inner tube (11) relative to the outer tube (10).
    2. A locking device in combination with a telescopic tube assembly according to Claim I wherein the enclosure (20) has a first hole (22) in communication with the first space (21) to receive therein the positioning rod (26) such that the positioning rod (26) is able to move inside the first hole (22) and a second hole (23) in communication with the second space (24) to allow an extension of the bolt (271) into the second space (24).
    A. , 1..
    13,... ,,, .e as: 3. A locking device in combination with a telescopic tube assembly according to Claim I or Claim 2 wherein a spring (262) is mounted around the positioning rod (26) to provide a recoil force to the positioning rod (26) to return the positioning rod (26) to its original position after being driven by the lever (25) to leave the corresponding adjusting recess (111) 4. A locking device in combination with a telescopic tube assembly according to any preceding claim wherein the inner tube (11) has a guiding groove (110) defined in the outer periphery of the inner tube (11) along a longitudinal axis; and the enclosure (20) has a guide (201) formed on an inner face of the enclosure (20) to be received in the guiding groove (110) such that movement of the inner tube (11) relative to the outer tube (10) is smooth.
    5. A locking device in combination with a telescopic tube assembly according to any preceding claim wherein a boss (12) is integrally formed on the outer periphery of the inner tube (1 1) to engage with a peripheral side of the outer tube (10) to prevent excessive movement of the inner tube (11) relative to the outer tube (10). Of
    7. The locking device in combination with a telescopic tube assembly as claimed in claim 5, wherein the inner tube (11) has a guiding groove (110) defined in the outer periphery of the inner tube (11) along a longitudinal axis and the enclosure (20) has a guide (201) formed on an inner face of the enclosure (20) to be received in the guiding groove ( 110) such that movement of the inner tube (11) relative to the outer tube (10) is smooth.
    8. A locking device in combination with a telescopic tube assembly, wherein the telescopic tube assembly comprising: an outer tube (10); and an inner tube (11) slidably received in the outer tube (10) and having multiple adjusting recesses (111) defined in an outer periphery of the inner tube (11); the locking device comprising: an enclosure (20) partially securely mounted on a peripheral edge of the outer tube (10) and having a lever (25) pivotally connected to the enclosure (20), a first space (21) defined in a side face ofthe enclosure (20) to receive the lever (25), a second space (24) defined in the enclosure (20) to be opposite to the first space (21) to receive therein an abutting block (28) to engage with the outer periphery of the inner tube (11); a bolt (271) screwingly extended through the enclosure (20) to abut an outer periphery of the abutting block (28) to force the abutting block (28) to engage with the outer periphery of the inner tube (11) so as to secure position of the inner (11) tube relative to the outer tube (10); and a positioning rod (26) securely connected to a side of the lever (25) to be driven by the lever (25) and having a head (261) formed on a free end of the positioning rod (26) to correspond to one of the adjusting recesses (111) of the inner tube (11) such that pivotal movement of the lever (25) is able to drive the head (261) of the positioning rod (26) to selectively move away from the corresponding adjusting recess (111) to allow the inner tube (11) to move relative to the outer tube (10).
    9. The locking device in combination with a telescopic tube assembly as claimed in claim 8, wherein the enclosure (20) has a first hole (22) in communication with the first space (21) to receive therein the positioning rod (26) such that the positioning rod (26) is able to move inside the first hole (22) and a second hole (23) in communication with the second space (24) to allow an extension of the bolt (271) into the second space (24).
    10. The locking device in combination with a telescopic tube assembly as claimed in claim 9, wherein a spring (262) is mounted around the positioning rod (26) to provide a recoil force to the positioning rod (26) to return the positioning rod (26) to its original position after being driven by the lever (25) to leave the corresponding adjusting recess (111) .
    11. The.locking device in combination with a telescopic tube assembly as claimed in claim 10, wherein a spring (262) is mounted around the positioning rod (26) to provide a recoil force to the positioning rod (26) to return the positioning rod (26) to its original position after being driven by the lever (25) to leave the corresponding adjusting recess (111) .
    12. The locking device in combination with a telescopic tube assembly as claimed in claim 10, wherein the inner tube (11) has a guiding groove (110) defined in the outer periphery of the inner tube (11) along a longitudinal axis and the enclosure (20) has a guide (201) formed on an inner face of the enclosure (20) to be received in the I b guiding groove ( 1 10) such that movement of the inner tube ( 1 1) relative to the outer tube (10) is smooth.
    13. The locking device in combination with a telescopic tube assembly as claimed in claim 11, wherein the inner tube (11) has a guiding groove (110) defined in the outer periphery of the inner tube ( l 1) along a longitudinal axis and the enclosure (20) has a guide (201) formed on an inner face of the enclosure (20) to be received in the guiding groove (110) such that movement ofthe inner tube (11) relative to the outer tube (10) is smooth.
    14. The locking device in combination with a telescopic tube assembly as claimed in claim 8, wherein a boss (12) is integrally formed on the outer periphery of the inner tube (11) to be engage with a peripheral side of the outer tube (10) to prevent excessive movement of the inner tube (11) relative to the outer tube (10).
    15. The locking device in combination with a telescopic tube assembly as claimed in claim 9, wherein a boss (12) is integrally formed on the outer periphery ofthe inner tube (11) to be engage with a peripheral side of the outer tube (10) to prevent excessive movement of the inner tube (11) relative to the outer tube (10).
    16. The locking device in combination with a telescopic tube assembly as claimed in claim 10, wherein a boss (12) is integrally formed on the outer periphery of the inner tube (11) to engage with a peripheral side of the outer tube (10) to prevent excessive movement of the inner tube (11) relative to the outer tube (10).
    17. The locking device in combination with a telescopic tube assembly as claimed in claim 11, wherein a boss (12) is integrally formed on the outer periphery of the inner tube (11) to engage with a peripheral side of the outer tube (lO) to prevent excessive movement of the inner tube (l l) relative to the outer tube (l O).
    18. The locking device in combination with a telescopic tube assembly as claimed in claim 12, wherein a boss (12) is integrally formed on the outer periphery of the inner tube (11) to engage with a peripheral side of the outer tube (10) to prevent excessive movement of the inner tube (11) relative to the outer tube (10).
GB0401347A 2004-01-22 2004-01-22 Locking device to secure a telescopic tube assembly Expired - Fee Related GB2410291B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0401347A GB2410291B (en) 2004-01-22 2004-01-22 Locking device to secure a telescopic tube assembly
DE202004001261U DE202004001261U1 (en) 2004-01-22 2004-01-28 Fuser unit for a stand

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0401347A GB2410291B (en) 2004-01-22 2004-01-22 Locking device to secure a telescopic tube assembly
DE202004001261U DE202004001261U1 (en) 2004-01-22 2004-01-28 Fuser unit for a stand

Publications (3)

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GB0401347D0 GB0401347D0 (en) 2004-02-25
GB2410291A true GB2410291A (en) 2005-07-27
GB2410291B GB2410291B (en) 2006-01-18

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GB (1) GB2410291B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2503008A (en) * 2012-06-13 2013-12-18 Paul Emmett Laing Double locking device for telescopic tubing
CN103851587A (en) * 2012-11-30 2014-06-11 海洋王（东莞）照明科技有限公司 Extensible rod and lamp with same
CN106884835A (en) * 2017-03-01 2017-06-23 陈婷 A kind of wolfram steel milling cutter is rinsed and uses adjustable type telescoping tube

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CN103883994B (en) * 2012-12-20 2016-04-13 深圳市海洋王照明工程有限公司 Lifting rod structure and movable type beacon
CN104344223A (en) * 2013-07-24 2015-02-11 麦国坚 Multifunctional LED (light-emitting diode) lamp
WO2021016196A1 (en) 2019-07-19 2021-01-28 Milwaukee Electric Tool Corporation Stand light
USD1018956S1 (en) 2019-11-18 2024-03-19 Milwaukee Electric Tool Corporation Stand light
CN113669578A (en) * 2021-08-05 2021-11-19 贵州中南交通科技有限公司 ETC lane self-service charging device with multiple payment modes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB230682A (en) * 1924-06-06 1925-03-19 Burt Brothers Ltd Improvements in locking devices for telescopically adjustable members, particularly applicable to display stands
GB310584A (en) * 1928-02-10 1929-05-02 Frederick Sage And Company Ltd Improvements in or relating to display stands and the like
GB413536A (en) * 1933-10-25 1934-07-19 Ceskoslovenska Zbrojovka Akcio Improvements in and relating to supports for fire-arms

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB230682A (en) * 1924-06-06 1925-03-19 Burt Brothers Ltd Improvements in locking devices for telescopically adjustable members, particularly applicable to display stands
GB310584A (en) * 1928-02-10 1929-05-02 Frederick Sage And Company Ltd Improvements in or relating to display stands and the like
GB413536A (en) * 1933-10-25 1934-07-19 Ceskoslovenska Zbrojovka Akcio Improvements in and relating to supports for fire-arms

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2503008A (en) * 2012-06-13 2013-12-18 Paul Emmett Laing Double locking device for telescopic tubing
EP2674629A3 (en) * 2012-06-13 2016-05-04 Paul Emmett Laing Lock device for telescopic tubing
CN103851587A (en) * 2012-11-30 2014-06-11 海洋王（东莞）照明科技有限公司 Extensible rod and lamp with same
CN103851587B (en) * 2012-11-30 2016-06-22 海洋王（东莞）照明科技有限公司 Expansion link and there is the light fixture of this expansion link
CN106884835A (en) * 2017-03-01 2017-06-23 陈婷 A kind of wolfram steel milling cutter is rinsed and uses adjustable type telescoping tube

Also Published As

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DE202004001261U1 (en) 2004-04-29
GB2410291B (en) 2006-01-18
GB0401347D0 (en) 2004-02-25

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