US20080253831A1 - Height adjustable accessory structure - Google Patents

Height adjustable accessory structure Download PDF

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Publication number
US20080253831A1
US20080253831A1 US11/735,000 US73500007A US2008253831A1 US 20080253831 A1 US20080253831 A1 US 20080253831A1 US 73500007 A US73500007 A US 73500007A US 2008253831 A1 US2008253831 A1 US 2008253831A1
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United States
Prior art keywords
engaging
sleeve
rod
height adjustable
assistant
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Granted
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US11/735,000
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US7445397B1 (en
Inventor
Yu-Shan Lai
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Individual
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Individual
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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
    • F16B7/10—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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
    • F16B21/18—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details
    • F16B21/186—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details external, i.e. with contracting action
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32254—Lockable at fixed position
    • Y10T403/32467—Telescoping members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32254—Lockable at fixed position
    • Y10T403/32467—Telescoping members
    • Y10T403/32524—Self-locking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7075—Interfitted members including discrete retainer
    • Y10T403/7077—Interfitted members including discrete retainer for telescoping members
    • Y10T403/7079—Transverse pin
    • Y10T403/7091—Expansible retainer

Definitions

  • the present invention relates to a height adjustable accessory structure.
  • a C-shaped ring is disposed in an engaging sleeve including a main sleeve body and an assistant sleeve body engaged with each other for allowing insertion and positioning of an engaging rod with a plurality of engaging portions.
  • the bottom of the engaging rod includes a tightening section and an engaging member whose size is between the outer diameter and the inner diameter of the engaging sleeve.
  • the tightening section allows free deformation of the elastic hooks at the bottom of the engaging sleeve, thus allowing the elastic hooks to successfully pass through the sleeve, and enabling the elastic hook to be positioned after inserting through the sleeve.
  • Height adjustable structure means that a structure can offer the height adjustable function. This height adjustable design makes the mass produced products suitable for different users with different body forms. Therefore, the height adjustable structure is very important.
  • the engaging sleeve is inserted in a sleeve so as to allow the engaging rod to insert into the engaging sleeve, and utilize a C-shaped ring which is located inside the engaging sleeve to engage with the engaging section of the engaging rod to carry out step adjustment (in a conventional engaging sleeve, there is also an elastic piece made by plastic molding to offer clamping force, but the plastic material is likely to lose elasticity and become brittle, so relevant discussions will be omitted here.).
  • the conventional height adjustable accessory structure is easy to operate, but its cost is high since the C-shaped ring of the engaging sleeve is difficult to manufacture, so that it can not be accepted by the general manufacturer. Since an annular groove must be preformed in the inner wall of the engaging sleeve, and the C-shaped ring will be positioned in the annular groove after the elastic deformation, the manufacturing process is very difficult, and the C-shaped ring is likely to disengage or be damaged during the assembling process. Additionally, because there is not any structure between the engaging rod and the engaging sleeve for preventing the disengagement, the whole rod can be pulled out by an improper force, thus causing the inconveniences in operation.
  • the present invention has arisen to mitigate and/or obviate the afore-described disadvantages.
  • the present invention relates to a height adjustable accessory structure which is disposed a C-shaped ring in an engaging sleeve including a main sleeve body and an assistant sleeve body engaged with each other for allowing insertion and positioning of an engaging rod with a plurality of engaging portions.
  • the bottom of the engaging rod includes a tightening section and an engaging member whose size is between the outer diameter and the inner diameter of the engaging sleeve.
  • the tightening section allows free deformation of the elastic hooks at the bottom of the engaging sleeve, thus allowing the elastic hooks to successfully pass through the sleeve, and enabling the elastic hook to be positioned after inserting through the sleeve.
  • the engaging sleeve includes a main sleeve body and an assistant sleeve body engaged with each other, the C-shaped ring can be easily first positioned in the sleeve during the engaging process, thus achieving the objectives of quick assembly, not damaging the C-shaped and reducing the manufacturing cost.
  • the bottom of the engaging rod of the present invention includes a tightening section and an engaging member whose size is between the outer diameter and the inner diameter of the engaging sleeve, so when the engaging sleeve is being engaged with the sleeve, the engaging member will be limited at the engaging rod under the sleeve. Since the engaging member will be stopped against the engaging sleeve, the whole engaging rod cannot be pulled away from the engaging sleeve by an improper force, thus offering a safe and stable operation.
  • FIG. 1 is a structural view of an engaging sleeve in accordance with the present invention
  • FIG. 2 is a structural view of the engaging sleeve and an engaging rod in accordance with the prevent invention.
  • FIG. 3 is a perspective view of showing that the engaging sleeve is combined with the engaging rod
  • FIG. 4 is a cross sectional view of a height adjustable accessory structure in accordance with the present invention.
  • FIG. 5 is a perspective view of showing that the height adjustable accessory structure is applied on a chair pillow in accordance with the present invention.
  • FIG. 6 shows that the elastic hook of the engaging sleeve is located correspondingly to the tightening section of the engaging rod in accordance with the present invention.
  • a height adjustable accessory structure comprises an engaging sleeve 1 , an engaging rod 2 and a sleeve 3 .
  • the engaging sleeve 1 includes a main sleeve body 11 and an assistant sleeve body 12 engaged with each other.
  • an annular groove 13 In the inner surface of each of the main sleeve body 11 and the assistant sleeve body 12 is formed an annular groove 13 for an accommodation of a C-shaped ring.
  • Each of the main and assistant sleeve bodies 11 , 12 has an elastic hook 15 located at both sides of the bottom of the engaging sleeve 1 for providing a fastening effect by inserting through the sleeve 3 .
  • the engaging rod 2 is to be inserted in the engaging sleeve 1 , and the C-shaped ring 14 is used to engage with any of a plurality of engaging portions 21 of the engaging rod 2 , thus carrying out height adjustment.
  • the engaging sleeve 1 includes a main sleeve body 11 and an assistant sleeve body 12 engaged with each other, and in the inner surface of each of the main sleeve body 11 and the assistant sleeve body 12 is formed an annular groove 13 .
  • the C-shaped ring 14 can be positioned in the annular groove 13 , thus making it easier to position the C-shaped ring 14 without damaging the elasticity of the C-shaped ring 14 , and ensuring the C-shaped ring 14 to have the optimal clamping force relative to the engaging portion 21 of the engaging rod 2 during the adjustment of the engaging rod 21 relative to the engaging sleeve 1 and enabling the height adjustment to be performed more stably.
  • the bottom of the engaging rod 2 of the present invention includes a tightening section 22 and an engaging member 23 whose size is between the outer diameter and the inner diameter of the engaging sleeve 1 .
  • the tightening section 22 allows free deformation of the elastic hooks 15 at the bottom of the engaging sleeve 1 , thus allowing the elastic hooks 15 to successfully pass through the sleeve 3 (as shown in FIG. 6 ), and enabling the elastic hook 15 to be positioned after inserting through the sleeve 3 .
  • the engaging member 23 located at the bottom of the engaging rod 2 will be stopped against the engaging sleeve 1 . Consequently, the engaging rod 2 cannot be pulled away from the engaging sleeve 1 .

Abstract

A height adjustable accessory structure includes a C-shaped ring disposed in an engaging sleeve including a main sleeve body and an assistant sleeve body engaged with each other for allowing insertion and positioning of an engaging rod with a plurality of engaging portions. The bottom of the engaging rod includes a tightening section and an engaging member whose size is between the outer diameter and the inner diameter of the engaging sleeve. The tightening section allows free deformation of elastic hooks at the bottom of the engaging sleeve, thus allowing the elastic hooks to successfully pass through the sleeve, and enabling the elastic hooks to be positioned below the engaging sleeve after inserting through the sleeve. The engaging member will be stopped against the engaging sleeve, and the engaging rod cannot be pulled away from the engaging sleeve.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to a height adjustable accessory structure. Essentially, a C-shaped ring is disposed in an engaging sleeve including a main sleeve body and an assistant sleeve body engaged with each other for allowing insertion and positioning of an engaging rod with a plurality of engaging portions. The bottom of the engaging rod includes a tightening section and an engaging member whose size is between the outer diameter and the inner diameter of the engaging sleeve. The tightening section allows free deformation of the elastic hooks at the bottom of the engaging sleeve, thus allowing the elastic hooks to successfully pass through the sleeve, and enabling the elastic hook to be positioned after inserting through the sleeve. After the engaging sleeve is engaged with the sleeve, since the engaging member can be stopped against the elastic hook, thus preventing the engaging rod from being pulled away from the engaging sleeve, and avoiding the problem of the unexpected disengagement of the engaging rod during the operation.
  • 2. Description of the Prior Art
  • Height adjustable structure means that a structure can offer the height adjustable function. This height adjustable design makes the mass produced products suitable for different users with different body forms. Therefore, the height adjustable structure is very important.
  • In a conventional height adjustable accessory structure with an engaging rod and an engaging sleeve, essentially, the engaging sleeve is inserted in a sleeve so as to allow the engaging rod to insert into the engaging sleeve, and utilize a C-shaped ring which is located inside the engaging sleeve to engage with the engaging section of the engaging rod to carry out step adjustment (in a conventional engaging sleeve, there is also an elastic piece made by plastic molding to offer clamping force, but the plastic material is likely to lose elasticity and become brittle, so relevant discussions will be omitted here.). The conventional height adjustable accessory structure is easy to operate, but its cost is high since the C-shaped ring of the engaging sleeve is difficult to manufacture, so that it can not be accepted by the general manufacturer. Since an annular groove must be preformed in the inner wall of the engaging sleeve, and the C-shaped ring will be positioned in the annular groove after the elastic deformation, the manufacturing process is very difficult, and the C-shaped ring is likely to disengage or be damaged during the assembling process. Additionally, because there is not any structure between the engaging rod and the engaging sleeve for preventing the disengagement, the whole rod can be pulled out by an improper force, thus causing the inconveniences in operation.
  • The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.
    • SUMMARY OF THE INVENTION
  • The present invention relates to a height adjustable accessory structure which is disposed a C-shaped ring in an engaging sleeve including a main sleeve body and an assistant sleeve body engaged with each other for allowing insertion and positioning of an engaging rod with a plurality of engaging portions. The bottom of the engaging rod includes a tightening section and an engaging member whose size is between the outer diameter and the inner diameter of the engaging sleeve. The tightening section allows free deformation of the elastic hooks at the bottom of the engaging sleeve, thus allowing the elastic hooks to successfully pass through the sleeve, and enabling the elastic hook to be positioned after inserting through the sleeve. Hence, it can offer the following efficiencies:
  • 1. since the engaging sleeve includes a main sleeve body and an assistant sleeve body engaged with each other, the C-shaped ring can be easily first positioned in the sleeve during the engaging process, thus achieving the objectives of quick assembly, not damaging the C-shaped and reducing the manufacturing cost.
  • 2. the bottom of the engaging rod of the present invention includes a tightening section and an engaging member whose size is between the outer diameter and the inner diameter of the engaging sleeve, so when the engaging sleeve is being engaged with the sleeve, the engaging member will be limited at the engaging rod under the sleeve. Since the engaging member will be stopped against the engaging sleeve, the whole engaging rod cannot be pulled away from the engaging sleeve by an improper force, thus offering a safe and stable operation.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a structural view of an engaging sleeve in accordance with the present invention;
  • FIG. 2 is a structural view of the engaging sleeve and an engaging rod in accordance with the prevent invention.
  • FIG. 3 is a perspective view of showing that the engaging sleeve is combined with the engaging rod;
  • FIG. 4 is a cross sectional view of a height adjustable accessory structure in accordance with the present invention;
  • FIG. 5 is a perspective view of showing that the height adjustable accessory structure is applied on a chair pillow in accordance with the present invention; and
  • FIG. 6 shows that the elastic hook of the engaging sleeve is located correspondingly to the tightening section of the engaging rod in accordance with the present invention.
    •  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • The present invention will be more clear from the following description when viewed together with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment in accordance with the present invention.
  • Referring to FIGS. 1-3, a height adjustable accessory structure comprises an engaging sleeve 1, an engaging rod 2 and a sleeve 3. The engaging sleeve 1 includes a main sleeve body 11 and an assistant sleeve body 12 engaged with each other. In the inner surface of each of the main sleeve body 11 and the assistant sleeve body 12 is formed an annular groove 13 for an accommodation of a C-shaped ring. Each of the main and assistant sleeve bodies 11, 12 has an elastic hook 15 located at both sides of the bottom of the engaging sleeve 1 for providing a fastening effect by inserting through the sleeve 3. The engaging rod 2 is to be inserted in the engaging sleeve 1, and the C-shaped ring 14 is used to engage with any of a plurality of engaging portions 21 of the engaging rod 2, thus carrying out height adjustment.
  • As known from the abovementioned structure, the engaging sleeve 1 includes a main sleeve body 11 and an assistant sleeve body 12 engaged with each other, and in the inner surface of each of the main sleeve body 11 and the assistant sleeve body 12 is formed an annular groove 13. Hence, when the main sleeve body 11 is engaged with the assistant sleeve body 12, the C-shaped ring 14 can be positioned in the annular groove 13, thus making it easier to position the C-shaped ring 14 without damaging the elasticity of the C-shaped ring 14, and ensuring the C-shaped ring 14 to have the optimal clamping force relative to the engaging portion 21 of the engaging rod 2 during the adjustment of the engaging rod 21 relative to the engaging sleeve 1 and enabling the height adjustment to be performed more stably.
  • For preventing the engaging rod 2 from disengaging from the engaging sleeve 1, the bottom of the engaging rod 2 of the present invention includes a tightening section 22 and an engaging member 23 whose size is between the outer diameter and the inner diameter of the engaging sleeve 1. The tightening section 22 allows free deformation of the elastic hooks 15 at the bottom of the engaging sleeve 1, thus allowing the elastic hooks 15 to successfully pass through the sleeve 3 (as shown in FIG. 6), and enabling the elastic hook 15 to be positioned after inserting through the sleeve 3. Since the size of the engaging member is between the inner diameter and the outer diameter of the engaging sleeve 1, when the engaging rod 2 is pulled upwards relative to the engaging sleeve 1, the engaging member 23 located at the bottom of the engaging rod 2 will be stopped against the engaging sleeve 1. Consequently, the engaging rod 2 cannot be pulled away from the engaging sleeve 1.
  • While we have shown and described various embodiments in accordance with the present invention, it is clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.

Claims (2)

1. A height adjustable accessory structure operatively connecting a headrest to a seat, the accessory structure comprising: an engaging sleeve, an engaging rod and a sleeve; wherein the engaging sleeve includes a main sleeve body and an assistant sleeve body separably engaged with each other, a top side of the main sleeve body having an annular flange, an inner surface of each of the main sleeve body and the assistant sleeve body being formed with an inner annular groove, the annular groove accommodating a C-shaped ring that engages with a plurality of engaging portions of the engaging rod so as to provide a positioning effect after height adjustment, each of the main and assistant sleeve bodies being received within the sleeve and each having an elastic hook located at both sides of a bottom of the engaging sleeve, the engaging rod being inserted into the engaging sleeve with the hooks and the annular flange sandwiching the sleeve therebetween to provide a fastening effect, wherein the bottom of the engaging rod includes an outer annular groove that receives a C-shaped engaging member, the C-shaped engaging member preventing removal of the rod from the engaging sleeve.
2. The height adjustable accessory structure as claimed in claim 1, wherein the bottom of the engaging rod includes a tightening section and the C-shaped engaging member whose size is between an outer diameter and an inner diameter of the engaging sleeve, wherein the tightening section allows free deformation of the elastic hooks at the bottom of the engaging sleeve, thus allowing the elastic hooks to successfully pass through the sleeve and enabling the elastic hooks to be positioned below the engaging sleeve after inserting through the sleeve.
US11/735,000 2007-04-13 2007-04-13 Height adjustable accessory structure Active US7445397B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110217110A1 (en) * 2008-10-29 2011-09-08 Fabien Argillier Detachable linking system for two components
CN113978595A (en) * 2021-11-01 2022-01-28 南京快轮智能科技有限公司 Shock attenuation type vehicle support

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7727366B2 (en) * 2003-10-22 2010-06-01 Nexx Systems, Inc. Balancing pressure to improve a fluid seal
JP5176476B2 (en) * 2007-10-22 2013-04-03 トヨタ紡織株式会社 Vehicle seat headrest
US20100109397A1 (en) * 2008-11-03 2010-05-06 Trw Vehicle Safety Systems Inc. Active head restraint for a vehicle seat
CN205117915U (en) * 2015-09-25 2016-03-30 中山品创塑胶制品有限公司 Telescopic pipe fitting
CN107692937B (en) * 2017-10-27 2019-11-15 安徽微威环保科技有限公司 A kind of Simple rubber set being exclusively used on mop

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3019042A (en) * 1959-06-11 1962-01-30 Signal Mfg Co Coupling element

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3019042A (en) * 1959-06-11 1962-01-30 Signal Mfg Co Coupling element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110217110A1 (en) * 2008-10-29 2011-09-08 Fabien Argillier Detachable linking system for two components
US9222501B2 (en) * 2008-10-29 2015-12-29 Mbda France Detachable linking system for two components
CN113978595A (en) * 2021-11-01 2022-01-28 南京快轮智能科技有限公司 Shock attenuation type vehicle support

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