Classifications

• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
  • E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
  • E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
  • E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
  • E05C17/30—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing of extensible, e.g. telescopic, construction

Definitions

• the present invention relates to an expansion / contraction stage used to support various swinging members such as a pivotable lid of a housing at a predetermined open position, and particularly to an inner and outer slidably fitted to each other.
• the present invention relates to an expansion / contraction stage in which the lock state of the lock member for locking the arm at a predetermined expansion / contraction position is improved.
• This type of telescopic stage generally includes a main body including an inner arm (first arm) and an outer arm (second arm) on which the inner arm is slidably fitted; Locking means for locking the inner and outer arms of the single body at a predetermined overlapping position.
• the locking means is provided with a lock engaging portion that is pivotally supported by the inner arm and is engaged with the lock hole of the outer arm.
• the lock member has a spring force so that the lock engagement portion is engaged with the lock hole when the lock engagement portion is aligned with the lock hole of the outer arm at a predetermined position where the inner and outer arms are extended. It is energized (see Patent Document 1).
• the lock member has a lock release operation portion to be engaged with the opening of the outer arm on the side opposite to the lock engagement portion when the inner and outer arms are locked, and when the lock is to be released, the lock is released. Push the operation part with your finger and pull the lock engagement part from the lock hole so that the inner and outer arms can move in the contraction direction.
• Patent Document 1 Japanese Patent Laid-Open No. 4 128484
• An object of the present invention is to provide an extendable stay that can effectively prevent the lock member from being unintentionally released.
• the inner arm and the outer arm in which the inner arm is slidably fitted. And a locking means for locking the inner and outer arms of the stage main body at a predetermined overlapping position.
• the locking means is supported by either the inner arm or the outer arm.
• the lock member has a lock engagement portion that engages with the lock hole of the other arm, and the lock member has a lock hole when the lock engagement portion is aligned with the lock hole at a predetermined position where the inner and outer arms are extended.
• the lock hole is sized so that the lock engagement portion of the hook member can be displaced in the arm expansion / contraction direction, and the lock engagement portion is formed at the edge of the lock hole.
• the hook of the lock engaging portion of the lock member may be provided so as to be engaged with only one edge in the expansion / contraction direction of the lock hole. It may be provided so as to be locked to both edges in the expansion / contraction direction.
• the dimension of the lock hole is such that the hook of the lock engagement part can be detached from the edge of the lock hole even if the hook of the lock engagement part is locked to one or both of the lock holes. It is.
• the lock member is pivotally supported on the side plate portion of either the inner or outer arm by a pivot, and the hook is wound around the pivot and has one end locked to the lock member and the other end locked to the arm. It is preferable to be biased to be locked to the edge of the lock hole by!
• V may be biased so as to be locked to the edge of the lock hole by a spring acting in the expansion / contraction direction of the inner and outer arms.
• the lock hole is set to have a dimension such that the lock engagement portion of the lock member can be displaced in the arm expansion / contraction direction, and the lock engagement portion is attached to be engaged with the edge of the lock hole. If you have a hook to be pressed, you cannot unlock the lock member even if you try to retract the lock engaging part with your finger, and the inner and outer arms so that the hook of the lock engaging part is released from the edge of the lock hole. Only after the arm is displaced in the expansion / contraction direction, the lock engaging portion can be pushed in with a finger, so that the lock of the expansion / contraction stage can be reliably maintained without unintentionally unlocking the expansion / contraction stay.
• FIG. 1 is a schematic side view showing different usage states of an expansion / contraction station according to the present invention.
• FIG. 2 is a front view of an expansion / contraction stage according to one embodiment of the present invention.
• FIG. 3 is a back surface of the telescopic stage of FIG.
• FIG. 4 is a top view of the telescopic stage of FIG.
• FIG. 5 is a central longitudinal sectional view of the telescopic stage of FIG. 2.
• FIG. 6 is an enlarged side view of the telescopic stage of FIG.
• FIG. 7 is an enlarged sectional view taken along line VII-VII of the telescopic stage of FIG.
• FIG. 8 is a vertical sectional view showing a locked state of the telescopic stage of FIG. 2 and a state of its release operation.
• FIG. 9 is a vertical sectional view showing a force substantially similar to that in FIG. 8 showing a locked state of the telescopic stage according to another embodiment of the present invention and a state of its release operation.
• FIG. 10 is a vertical cross-sectional view showing a force that is substantially the same as in FIGS. 8 and 9 and shows a locking state of the telescopic stage according to still another embodiment of the present invention and a state of its releasing operation.
• FIG. 11 is a front view of a telescopic stage according to another embodiment of the present invention.
• FIG. 12 is a central longitudinal sectional view of the telescopic stage of FIG. 11.
• FIG. 13 is an enlarged side view of the telescopic stage of FIG.
• FIG. 14 is an enlarged cross-sectional view taken along line XIV--XIV of the telescopic stage of FIG.
• FIG. 1 shows several examples of usage states of the expansion / contraction stage 10 of the present invention.
• a telescopic stay 10 is used between the casing 1 and a lid 2 pivotally supported by a hinge 3 to extend the lid 2 when the lid 2 is opened and to keep the lid 2 open and open.
• Fig. 1 (A) shows that the lid 2 is attached so as to open and close the front opening of the housing 1, and the telescopic stay 10 maintains the state in which the lid 2 is opened upward with the pivot at the upper edge as the center.
• Fig. 1 shows that the lid 2 is attached so as to open and close the front opening of the housing 1, and the telescopic stay 10 maintains the state in which the lid 2 is opened upward with the pivot at the upper edge as the center.
• FIG. 1 (B) shows that the lid 2 is attached so as to open and close the top opening of the housing 1, and the telescopic stay 10 opens the lid 2 upward about the rear pivot.
• 1 (C) shows that the lid 2 is attached so as to open and close the front opening of the housing 1, and the telescopic stay 10 pivots the lid 2 on the lower edge. It is used to maintain the state of being opened and lowered downward about the branch.
• a telescopic stay 10 according to one embodiment of the present invention is shown in FIG.
• the telescopic stage 10 has a stage body 16 including an inner arm 12 and an outer arm 14 into which the inner arm 12 is slidably fitted, and inner and outer arms 12 and 14 of the stage body 16 as predetermined. And locking means 20 for locking at the overlapping position.
• the inner and outer arms 12 and 14 are made by sheet metal processing of stainless steel or other appropriate metal material, but may be made of resin or other materials.
• This telescopic arm 10 is suitable for use in the state of FIG. 1 (A) or
• the inner and outer arms 12, 14 have bush-like mounting seats 12M, 14M that are caulked to pivotally attach to the casing 1 and the lid 2 at the opposite ends thereof, These arms 12 and 14 are supported by the casing 1 and the lid 2 by pivots 1P and 2P (see FIG. 1) penetrating the mounting seats 12M and 14M.
• the inner arm 12 has a substantially U-shaped cross section including a side plate portion 12RS and upper and lower plate portions 12U and 12L extending horizontally from above and below the side plate portion 12RS.
• the upper plate is removed as indicated by the symbol 12UN at the position where the lock member described later is attached (see Fig. 7).
• the outer arm 14 includes the rear side plate portion 14RS and the upper and lower plate portions 14U and 14L extending in the horizontal direction, and the opening side of these upper and lower plate portions. It has a substantially C-shaped cross section from the front plate portions 14FSU and 14FSL extending vertically so as to be spaced apart from each other downward and upward.
• the lock means 20 has a lock engagement portion 24 that is pivotally supported by a pivot 26S on the side plate portion 12RS of the inner arm 12 and engages with a lock hole 22 provided in the upper plate portion 14U of the outer arm 14. It consists of an L-shaped lever-like lock member 26.
• the lock member 26 is arranged so that the lock engagement portion 24 is engaged with the lock hole 22 when the lock engagement portion 24 is aligned with the lock hole 22 of the outer arm 14 at a predetermined position where the inner and outer arms 12, 14 are extended. It is biased by a spring 28.
• the spring 28 has a spring force that is fastened to the pivot 26S.
• One end of the spring 28 is locked in a locking hole 26H provided in the lock member 26 (see FIG. 8) and the other. The end is locked to the inner surface of the lower plate portion 12L of the inner arm 12 (see FIG. 7). Since the lock engagement portion 24 is provided in the portion 12N where the upper plate portion 12U of the inner arm 12 is removed, the upper plate portion 12U is obstructed to engage the lock engagement portion 24 into the lock hole 22. And never happen.
• the lock hole 22 has a lock engagement portion 24 of the lock member 26 in the arm expansion / contraction direction (the direction of arrow A in Fig. 8 (B) and the arrow B in Fig. 8 (D)
• the lock engaging portion 24 has a hook 24F that can be locked to the edge 22E1 of the lock hole 22.
• the hook 24F is urged to be locked to the edge of the lock hole by the gravity acting in the direction of expansion / contraction of the inner and outer arms in the state of use of the expansion / contraction stage.
• the force to be applied may be biased so as to be engaged with the edge of the lock hole by a spring acting in the expansion / contraction direction of the inner and outer arms.
• the hook 24F of the lock engaging portion 24 of the lock member 26 is provided so as to be locked only to one edge (edge in the contraction direction) 22E1 of the lock hole 22 in the expansion / contraction direction.
• the dimension of the lock hole 22 (the dimension in the expansion / contraction direction) is such a dimension that the hook 24F of the lock engagement part 24 can be detached from the edge 22E1 of the lock hole 22 (Fig. 8 (B) (C) reference).
• the use state of the telescopic stay 10 will be described in detail with reference to FIG. 8.
• the telescopic stay 10 force for example, as shown in FIG.
• the inner arm 12 of the telescopic stay 10 is fully inserted into the outer arm 14 and contracted as shown in FIG. 8 (D). It is located between lid 2 and housing 1.
• the inner arm 12 is attached to the lid 2 side, and the outer arm 14 is attached to the inside of the housing 1.
• the telescopic arm 10 extends while the inner arm 12 is pulled out from the outer arm 14 while pivoting with respect to the casing 1 and the lid 2.
• the lock engagement portion 24 of the lock member 26 is aligned so that it can enter the lock hole 22, so that the lock engagement portion 24 of the lock member 26 is urged by the bias of the spring 28. Enters the lock hole 22 (see Fig. 8 (B)).
• the lid 2 tends to return downward due to its own weight, so that the inner arm 12 is displaced in the contracting direction, and the hook 24F of the lock engagement portion 24 becomes the edge 22E1 of the lock hole 22 (See Fig. 8 (A)).
• FIGs. 9 and 10 Another embodiment of the present invention is shown in Figs. 9 and 10, in which the hook 24F of the lock engaging portion 24 is an edge 22E2 in the extending direction of the lock hole 22 of the outer arm 14. 1 to 8, except that the hooks 24F (22F1 and 22F2) of the lock engagement portion 24 are provided on the outer arm. 1 to 9 except that 14 lock holes 22 are provided on both sides of the lock engagement portion 24 so as to be engaged with either the contraction direction edge 22E1 or the extension direction edge 22E2. Is the same. The same parts are given the same reference numerals.
• the configuration shown in Fig. 9 can be used when the telescopic stay 10 is urged in the extending direction while the telescopic stay 10 is locked as shown in Fig. 1 (C).
• the inner arm 12 is urged in the extending direction by urging the lid 2 downward (in the opening direction), and the hook 24F of the hook engaging portion 24 is locked to the edge 22E2 of the lock hole 22.
• the lock engaging portion 24 can be pushed by a finger and unlocked.
• the expansion / contraction stay 10 force is applied as shown in FIGS. 1 (A) and 1 (B). As shown, it can be used in both cases where the urging force in the extending direction is applied to the expansion / contraction stay 10 when the lid 2 is opened.
• one hook 24F1 or 24F2 is engaged with the edge 22E1 or 22E2 of the lock hole 22 to release the state force. It is necessary to stop the displacement at a position (see FIG. 10 (B)) before the position where the other hook 24F2 or 24F1 is locked to the corresponding edge 22E2 or 22E1 of the lock hole 22.
• the lid 2 is in a state where the lid 2 is open, and the lid 2 applies a force in the expansion / contraction direction to the expansion / contraction stay 10.
• the spring may be biased so that a force in the extension direction or contraction direction acts between the inner and outer arms 12, 14. It is necessary that the arm 12 and 14 of the inner and outer arms have a weakness and force that does not hinder the expansion and contraction of the arms.
• one locking hole 22 is provided in the outer arm 14 to lock one extended state.
• a plurality of outer arms 14 are provided at intervals in the longitudinal direction. Of course, you can lock several different stretch states.
• FIGS. 11 to 14 Another embodiment of the present invention is shown in FIGS. 11 to 14.
• the lock member 26 is pivotally supported on the side plate portion 14RS of the outer arm 14 by the pivot 26S, and the lock hole 22 is formed on the inner side. Except for being provided on the upper plate portion 12U of the arm 12, it is substantially the same as the embodiment of FIGS. The same parts are denoted by the same reference numerals.
• the lock engagement portion 24 of the lock member 26 engages with the edge 22E1 of the lock hole 22, the lock engagement portion 24 may be restrained by the upper plate portion 14U of the outer arm 14.
• the upper plate portion 14U is provided with a relief cutout hole 14UN so that there is no possibility.
• the lock engagement portion 24 enters the lock hole 22 by the bias of the spring 28, and the inner and outer arms
• the hook 24F is engaged with the edge 22E1 of the lock hole 22 by the urging force acting on the arms 12 and 14 in the extending direction.
• the hook 24F may be engaged with the opposite edge 22E2 of the lock hole 22, and two hooks 24F may be provided on both sides of the lock engagement portion 24. Make sure that one of the hooks 24F is locked to the corresponding edge of the lock hole 22;
• the lock member 26 is pivotally supported so as to swing around the pivot 26S.
• the lock member 26 may be displaced in a direction orthogonal to the expansion and contraction directions of the arms 12 and 14. You may support it as you can.
• the lock engagement portion can be pushed in with a finger only after the inner and outer arms are displaced in the expansion and contraction direction so that the hook of the lock engagement portion of the lock member is disengaged from the edge of the lock hole. Therefore, it is possible to reliably maintain the lock of the expansion / contraction stage without unintentionally unlocking the expansion / contraction stay, and the industrial utility is improved.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Vehicle Step Arrangements And Article Storage (AREA)
• Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
• Closures For Containers (AREA)
• Clamps And Clips (AREA)
• Lock And Its Accessories (AREA)

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Publications (1)

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Citations (7)

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• 2006
  • 2006-06-19 JP JP2007522268A patent/JP5042825B2/ja not_active Expired - Fee Related
  • 2006-06-19 CN CN2006800219718A patent/CN101203651B/zh not_active Expired - Fee Related
  • 2006-06-19 WO PCT/JP2006/312218 patent/WO2006137352A1/ja active Application Filing

Patent Citations (7)

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