JP3919888B2 - Telescopic handle for suitcase - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, it is possible to more easily perform the operation of adjusting the height of the handle to the position that is most easily carried according to the height of the person carrying the case, etc. The present invention relates to a telescopic handle for a suitcase.
[0002]
[Prior art]
FIG. 6 is a perspective view of a main part of a conventional telescopic handle 200, in which a grip 2 is straddled between the upper ends of two telescopic rods 1 and 1 facing each other at a predetermined interval. It is fixed to a suitcase that omits.
Each of the two telescopic rods 1 and 1 in which the inner cylinder 1B is slidably fitted to the outer cylinder 1A, the inner cylinder 1B is locked to the outer cylinder 1A at an arbitrary sliding position. Therefore, a lock mechanism (not shown) is incorporated.
An operation lever 3 is attached to one end of the grip 2 to operate a lock mechanism that is normally in an engagement biased state on the engagement release side.
In order to adjust the height position of the grip 2, in order to operate the lock mechanism to the disengagement release side once, the grip 2 is held at the desired height while pressing the operation lever 3 with the thumb of the hand holding the grip 2. When the thumb is released after being moved up and down to the position, it is locked again and the telescopic rod 1 is fixed to a desired length.
[0003]
Alternatively, although not shown in the drawings, there is also a case where the above-mentioned exclusive-use auxiliary grip is provided in parallel on the lower side of the main grip.
In this type, the auxiliary grip 2 is held together with the main grip only when the height position of the main grip is adjusted.
[0004]
[Problems to be solved by the invention]
However, in the case where the operation lever 3 is provided, the operation lever 3 is positioned not on the thumb side but on the little finger side in a state where the grip 2 is gripped depending on the positional relationship between the suitcase and the carrying person. There is. In this case, for example, after adjusting the grip height with another hand, it is troublesome to change to the hand on the side that is easy to carry.
However, for example, when the operation lever 3 is attached in the middle of the grip 2, the operation lever 3 is pushed as soon as the grip 2 is gripped, which is not useful.
[0005]
In addition, in the case of providing both the main and sub grips, there is an annoyance that requires attention to which one of the grips should be held.
[0006]
Accordingly, an object of the present invention is to always allow the operation lever to be touched with the thumb while holding the grip regardless of the positional relationship between the suitcase and the person carrying it, and to adjust the height of the grip 2. An object of the present invention is to provide a telescopic handle for a suitcase that is extremely good in performance.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the telescopic handle for a suitcase according to the present invention is:
In what uses a grip straddling between the upper ends of two telescopic heels and fixing each lower end side to a suitcase,
In each of the expansion / contraction rods in which the inner cylinder is slidably fitted to the outer cylinder, a detachable lock mechanism for locking the inner cylinder to the outer cylinder at any sliding position is incorporated.
At both ends of the grip, operation portions for releasing the locking operation by the lock mechanism are provided, respectively.
In addition, the grip incorporates an interlocking mechanism in which either one of the two operation units is operated to disengage both operation units.
The lock mechanism A is provided in the inner cylinder 1B with a plurality of locking recesses 5 provided at predetermined intervals in the axial direction of the outer cylinder 1A, and is selectively selected from any of the plurality of locking recesses by a spring. Consisting of a combination with the engaging member 6 pressed and urged to engage
The operation part B includes an operation lever 3 that can swing up and down, and a transmission member 10 that transmits a pressing movement of the operation lever 3 to the engagement member 6 to release the engagement against the biasing force. The mechanism C has as its main body a slide bar 20 that is assembled to the inner space of the grip 2 so as to be movable left and right with both ends thereof positioned below the operation lever 3.
Slope cams are formed on the sliding contact surfaces of both ends of the slide bar 20 and the transmission member 10,
When the operating lever 3 is pressed, the pressing force causes one transmission member 10 to move downward through the inclined cams and pushes the slide bar 20 toward the other transmission member 10 so that the transmission member 10 is also inclined cam. It is good to comprise so that it may be moved down by.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the telescopic handle according to the present invention will be described with reference to FIGS.
As shown in FIG. 1 as an external perspective view of the main part, the general structure of the telescopic handle 100 is configured such that the inner cylinder 1B is slidably fitted in the outer cylinder 1A having a predetermined length. The two telescopic rods 1 and 1 having the above are placed, the grip 2 having a hollow structure is straddled between the respective upper ends, and the operation levers 3 (operation portions) are respectively assembled to both end portions of the upper surface.
The lower ends of the two telescopic rods 1 and 1 are fixed to a suitcase not shown.
[0009]
Next, the detailed structure of the telescopic handle 100 will be sequentially described.
As shown in FIGS. 2 and 3, both the telescopic rods 1 are provided for engaging the outer cylinder 1 </ b> A with the inner cylinder 1 </ b> A at an arbitrary sliding position in order to adjust the respective lengths. A detachable lock mechanism A is incorporated.
This lock mechanism A has as its main body a slider 4 that is slidably fitted in the outer cylinder 1A and whose upper part is fixed to the lower end of the inner cylinder 1B.
As shown in FIG. 3, the wall surface of the outer cylinder 1 </ b> A is provided with locking holes (locking recesses) 5 at a plurality of locations that are spaced apart in the axial direction. In the figure, only one locking hole 5 is shown.
[0010]
In the hollow portion of the activator 4, an engagement member 6 having a locking projection 6 a to be inserted into the locking hole 5 of the outer cylinder 1 A is directed toward the locking hole 5 by a compression spring 7. Assembled in a pressed state.
Furthermore, a reversing lever 8 for retreating the engaging member 6 against the pressing biasing force is also assembled. A base end side of the reversing lever 8 is pivotally supported by the pin 9, and a claw 8 a for hooking the engaging member 6 is provided on the distal end side.
[0011]
A transmission member 10 for transmitting the push-down movement of the operation lever 3 to the reversing lever 8 and retreating the locking member 6 is fitted into the upper end portion of the inner cylinder 1B so as to be slidable vertically. . This vertical movement is regulated by guide pins 12 which are loosely fitted in the vertically long holes 11 provided in the transmission member 10 and both ends thereof are fixed to the inner cylinder 1B.
And the lower end of the push rod 13 suspended from the transmission member 10 is brought into contact with the upper surface of the reverse lever 8.
[0012]
The operation unit C according to the present invention includes the operation lever 3 and the transmission member 10 as its constituent elements.
As shown in FIG. 2, a first inclined cam surface 10 a is provided on the upper portion of the transmission member 10 toward the side end of the grip 2, and the second inclined cam is directed toward the center of the grip 2. A surface 10b is provided.
[0013]
The upper surface of the hollow grip 2 is provided with punched hole portions 2a at both ends thereof, and the operation lever 3 is exposed from the punched hole 2a with the support shaft 14 pivotally supported on the base end side.
Two protrusions 3 a and 3 b are provided side by side on the lower surface on the distal end side of the operation lever 3.
[0014]
Inside the grip 2, only one of the left and right control levers 3 and 3 is operated, and a pair of lock mechanisms A and A incorporated in the telescopic rods 1 and 1 are operated in conjunction with each other. The interlocking mechanism C is incorporated.
This interlocking mechanism C has as its main body a pair of slide bars 20, 20 that are assembled in parallel on the inner bottom surface 2 a of the grip 2 so as to be movable left and right (in the drawing).
Both slide bars 20 that are asymmetric in the left-right direction are arranged in opposite directions. (See Figures 4 and 5)
[0015]
A stopper 22 provided with a horizontally long hole 21 is projected from the center of the upper surface of the slide bar 20, and a guide pin 23 fixed to the side wall of the grip 2 is inserted through the horizontally long hole 21.
Further, on the grip 2 side, stop plates 24 and 24 are fixedly provided at predetermined intervals from both side ends of the stopper 22.
And between each stop plate 24 and the both ends of the stopper 22, the compression spring 25 for hold | maintaining the slide bar 20 in the intermediate position of a right-and-left movement normally is inserted.
[0016]
A first inclined cam surface 20a is provided at one end of the slide bar 20 so that the protrusion 3a of the operation lever 3 is slidably contacted, and a second inclined cam surface 10b of the transmission member 10 is provided at the other end. A second inclined cam surface 20b that is slidably contacted is provided.
The inclined cam surfaces 3a and 20a, the inclined cam surfaces 3b and 20a, and the inclined cam surfaces 10b and 20b constitute an inclined cam, respectively.
[0017]
Next, the operation of the telescopic handle 100 will be described with reference to FIGS.
First, at the normal time when both the operating levers 3 and 3 are not pressed, the slide bar 20 occupies the center position as shown in FIGS. 3 and 4, and the locking projection 6a of the locking mechanism A is compressed. The spring 7 is engaged with any one of the locking holes 5 provided at a plurality of locations of the outer cylinder 1A, and the lengths of the telescopic rods 1 and 1 are fixed.
[0018]
In this state, if the grip 2 of the telescopic handle 100 is grasped with one hand, the suitcase with casters can be pulled easily.
At this time, the position of the grip 2 may be too high or too low depending on the inclination of the suitcase and the height of the carrier.
[0019]
In that case, with the thumb of the hand holding the grip 2, the operation lever 3 on the side close to the thumb is pushed down, for example, as indicated by the arrow f1 on the right side of FIG.
Then, a protrusion 3b that is provided on the heel side of the figure at the tip of the operation lever 3 and that is in sliding contact with the inclined cam surface 10a that is formed outwardly on the transmission member 10 on the right side of the figure is the transmission member 10. Is depressed (see arrow a).
[0020]
This pressing movement is transmitted to the reversing lever 8 via the push bar 13, and the locking projection 6 a of the engaging member 6 is pulled out from the locking hole 5 against the urging force of the compression spring 7. As a result, the inner cylinder 1B on the right side of the figure is in a state in which it can slide freely within the outer cylinder 1A (unlocked).
[0021]
Further, when the right control lever 3 is pushed, as shown in FIG. 5, the front side protrusion that is in sliding contact with the inclined cam surface 20a at the right end of the front side slide bar 20 shown by a solid line in the drawing. The part 3a pushes the slide bar 20 to the left (see arrow b).
As a result, the inclined cam surface 20b at the left end of the slide bar 20 that is in sliding contact with the inwardly inclined cam surface 10b of the left transmission member 10 acts to push down the left transmission member 10 (see arrow c). ) The lock mechanism A on the left side is also unlocked in the same manner as that on the right side.
[0022]
Therefore, the height position of the grip 2 can be adjusted by moving the hand holding the grip 2 up and down while keeping the operation lever 3 pressed.
When the adjustment is completed, the thumb is released from the operation lever 3 and the grip 2 is slightly lifted (or pulled down). The locking protrusion 6a that has been retracted is pushed by the compression spring 7 so that it is in the nearest position. The length of the telescopic rods 1 and 1 after being adjusted by being pushed into another locking hole 5 is fixed, and the intended purpose can be achieved.
[0023]
However, in some cases, the thumb of the hand holding the grip 2 is positioned on the left side of the grip 2 on the operation lever 3 side in view of the positional relationship between the suitcase and the carrier.
In this case, as indicated by an arrow f2 on the left side of FIG. 5 and indicated by the arrow, if the left operating lever 3 is pushed down with this thumb, the left side locking mechanism A is unlocked, and The heel side slide bar 20 indicated by a broken line in the figure acts in the same manner as described above, and the left and right locking mechanisms A, A are unlocked in conjunction with each other. The movement of the arrow a → b → c at this time is replaced with the movement of the arrow d → e → f.
Therefore, the height position of the grip 2 may be adjusted as described above.
[0024]
【The invention's effect】
As is apparent from the above description, the telescopic handle for a suitcase according to the present invention is
When the length adjusting lock mechanism is assembled to each of the two telescopic rods, each unlocking operation lever is attached to both ends of the grip, and when one of the operation levers is operated, The operation lever is also configured to be unlocked in conjunction with it.
Therefore, it is possible to solve the problem that the ease of operation of the operation lever is extremely poor depending on the positional relationship between the suitcase and the transporter, which is a major drawback of the conventional one.
[Brief description of the drawings]
FIG. 1 shows an embodiment of the present invention and is an external perspective view of a main part of a telescopic handle.
FIG. 2 is an exploded perspective view of the main part of the telescopic handle.
FIG. 3 is a longitudinal sectional view of the main part of the telescopic handle, same as above.
FIG. 4 is a longitudinal sectional view of the grip portion.
FIG. 5 is a longitudinal sectional view of the grip part, illustrating the operation of the interlocking mechanism.
FIG. 6 is a view corresponding to FIG. 1 showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 100 Telescopic handle A Lock mechanism B Operation part C Interlocking mechanism 1 Telescopic rod 1A Outer cylinder 1B Inner cylinder 2 Grip 2a Inner bottom surface 3 Operation lever 3a, 3b Protrusion part 4 Actuator 5 Engagement hole (engagement recessed part)
6 Engaging member 6a Locking protrusion 7 Compression spring 8 Retraction lever 8a Claw 9 Pin 10 Transmission member 10a, 10b Inclined cam surface 11 Long hole 12 Guide pin 13 Push rod 14 Support shaft 20 Slide bar 20a, 20b Inclined cam surface 21 Horizontally long hole 22 Stopper 23 Guide pin 24 Stop plate 25 Compression spring 200 Conventional telescopic handle

Claims (2)

In what uses a grip straddling between the upper ends of two telescopic heels and fixing each lower end side to a suitcase,
In each of the expansion / contraction rods in which the inner cylinder is slidably fitted to the outer cylinder, a detachable lock mechanism for locking the inner cylinder to the outer cylinder at any sliding position is incorporated.
At both ends of the grip, operation portions for releasing the locking operation by the lock mechanism are provided, respectively.
An extendable handle for a suitcase, wherein the grip incorporates an interlocking mechanism in which either one of the two operation parts is operated to disengage the two operation parts. . The locking mechanism A includes a plurality of locking recesses 5 provided at predetermined intervals in the axial direction of the outer cylinder 1A, and is provided in the inner cylinder 1B, and is attached to any of the plurality of locking recesses by a spring. Consisting of a combination with an engagement member 6 that is pressed and biased to selectively engage,
The operation part B includes an operation lever 3 that can swing up and down, and a transmission member 10 that transmits a pressing movement of the operation lever 3 to the engagement member 6 and releases the engagement against the urging force. ,
The interlocking mechanism C has as its main body a slide bar 20 that is assembled to the inner space of the grip 2 so as to be movable left and right, with both ends thereof positioned on the lower sides of the operation lever 3.
A slope cam is formed on each sliding contact surface between the both ends of the slide bar 20 and the transmission member 10;
When the operation lever 3 is pressed, the pressing force lowers one transmission member 10 via the slope cams, and pushes the slide bar 20 toward the other transmission member 10 to thereby transmit the transmission member 10. The telescopic handle for the suitcase, which is also lowered by the tilt cam.

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