JP3038447U - Towbar adjustment device for baggage - Google Patents

Abstract

(57) Abstract: In a towbar adjusting device for a bag for baggage, an outer pipe, an adjusting member and an inner pipe arranged in the outer pipe are improved to shorten a working process and reduce manufacturing cost. The purpose is to plan. SOLUTION: The outer pipe is formed by integral molding, concave grooves are formed on the outer surface of the inner pipe along the up and down directions, and a large number of spherical bodies are formed at predetermined intervals between the inner pipe concave groove and the outer pipe inner wall surface. An adjusting member connected by a cord is provided, the upper and lower ends of the adjusting member are fixed between the upper and lower ends of the outer tube, and the engaging body is fixed by the pressure body and the control body of the operating rod inserted into the inner tube. The first and second coil springs that can be engaged with and disengaged from the adjustment member and that bias the control body and the engagement body are housed in the cover body.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a towbar adjusting device for a luggage bag equipped with a towbar with a handle, and in particular, a towbar adjusting device capable of easily adjusting the length of the towbar appropriately for a user. Regarding the improvement of.

[0002]

[Prior art]

 Heretofore, various baggage bags having a function of adjusting the length of this type of towbar have been proposed and generally provided. 1 and 2 are a broken exploded perspective view and a longitudinal sectional view of an assembled state of a length adjusting device for a tow rod attached to a conventional luggage bag. In the figure, reference numeral 1 denotes an outer frame body having a U-shaped horizontal cross-section, and bent portions 1b, 1b are formed opposite to each other in a side surface opening 1a of the outer frame body 1. Reference numeral 2 is an inner tube slidably inserted into the outer frame body 1, and a communication port 2a is formed at the lower end of the inner tube 2 in which the engaging body 3 projects. Reference numeral 4 denotes an operating rod for engaging and disengaging for positioning the inner pipe 2, which is disposed in the inner pipe 2. The upper end 4a of the operating rod 4 is slightly larger than the upper end opening of the inner pipe 2. A pressing body 5 is provided so as to project, and an engagement body cover 6 for accommodating the engagement body 3 is fixed to the lower end portion 4b.

Reference numeral 7 denotes an adjusting member which is arranged so as to cover the opening 1a of the outer frame body 1 and positions the protruding length of the inner pipe 2 fixed to the bent portion 1b. The member 7 fits the bent portions 1b and 1b formed in the opening 1a of the outer frame 1 into the grooves 7a and 7a formed at both ends, and these are fixed by means such as punching. Has become. Further, the adjusting member 7 is provided with a large number of engaging recesses 7b at a small predetermined interval on the exposed surface of the outer frame body 1 over the entire length thereof. An engagement protrusion 3a formed on the outer surface of the engagement body 3 is biased by a coil spring 8 at a predetermined position into the engagement recess 7b so as to project from the communication port 2a of the inner pipe 2 and engage with the engagement recess 7b. ing. Reference numeral 9 is a cap member that is inserted into the upper and lower openings of the outer frame 1. The outer frame body 1 to which the adjusting member 7 is fixed, the inner pipe 2, the engaging body 3, and the operating rod 4 are constituted by a pair of left and right rods, but only one of them is explained for the same configuration. On the other hand, the handle attached between the left and upper right ends of the inner pipe 2 is omitted.

Next, a process of assembling the towbar adjusting device for the bag for luggage having the above structure will be described. The grooves 1a, 7a of the adjusting member 7 are fitted into the bent portions 1b, 1b formed in the opening 1a of the outer frame 1 and fixed by a fixing means such as punching so as to cover the opening 1a. . Next, the protrusion 10a of the stopper 10 is fitted and attached to the positioning hole 2b formed at the lower end of the inner pipe 2, and then the pressing body 5 of the operating rod 4 is inserted from the lower end opening of the inner pipe 2 to engage the engaging body. The U-shaped cut tongue piece formed on the outer side surface of the engaging body cover 6 by bringing the lower end large diameter step 6a of the cover 6 into contact with the lower opening end 2c of the inner tube 2 and the lower opening end 10b of the stopper 10. The projecting portion 6c of 6b elastically engages with the engaging hole 2d formed below the inner tube 2. Further, the engaging body 3 is housed in the accommodation chamber 6d of the engaging body cover 6 by utilizing the opening 6c together with the coil spring 8 through the communication port 2a formed below the inner pipe 2 with the convex portion 3a on the outside. The engaging portion 6e formed in the storage chamber 6d is locked so that the engagement body 3 does not project outward from the storage chamber 6d by the bias of the coil spring 8.

In this way, the assembled inner tube 2 is inserted into the outer frame body 1 so that the engaging body 3 faces the concave portion 7b of the adjusting member 7, and in a normal state, the engaging body 3 is engaged. Since it is locked in the accommodation chamber 6d of the united cover 6, it does not engage with the recess 7a of the adjusting member 7, and the inner tube 2 can be freely expanded and contracted in the upward and downward directions. However, by pushing down the pressing body 5 against the coil spring 11, the engagement body 3 that has been engaged in the accommodation chamber 6d of the engagement body cover 6 is released, and the engagement body 3 is released. By the urging of the inner pipe 2, the inner pipe 2 is projected from the communication port 2a, and the convex portion 3a of the engaging body 3 and the concave portion 7b of the adjusting member 7 are engaged with each other to prevent the inner pipe 2 from moving upward and downward. The inner tube can be expanded and contracted by a handle fixed to the upper end of the inner tube (not shown).

[0006]

[Problems to be solved by the device]

 However, the above-described conventional baggage towbar adjusting device has the following problems. The outer frame 1 has a U-shaped horizontal cross section, but the configuration of the bent portions 1b, 1b formed in the opening 1a is troublesome, and the adjusting member fixed to the bent portions 1b, 1b. 7 also has a large number of concave portions 7b formed in the longitudinal direction and grooves 7a which are fitted to the bent portions 1b 1 and 1b are provided at both ends, so that it takes a lot of time and effort to mount and requires a lot of working time. As a result of the requirement, the manufacturing cost increases. The present invention has been made to solve the above-mentioned problems. The purpose of the present invention is to form the outer pipe by integral molding and to arrange the length adjusting member of the inner pipe at a predetermined interval on the cord. Formed by connecting multiple spherical bodies, this adjustment member is extremely easy to attach to the outer tube, and the expansion and contraction movement of the inner tube can be smoothly adjusted in cooperation with the engaging body and the working time can be reduced. The present invention aims to provide an inexpensive baggage towbar adjustment device that can be manufactured at a reduced cost and at a reduced manufacturing cost.

[0007]

[Means for Solving the Problems]

 According to a first aspect of the present invention, there is provided a towbar adjusting device for a luggage bag having a traveling wheel at a lower end portion and a towbar with a handle having a length adjusting function, and left and right fixed to side surfaces of the bag. A pair of outer pipes, a pair of left and right inner pipes that are slidably fitted in the outer pipes, and have concave grooves extending upward and downward on the outer surface, and inner walls of the outer pipes The adjusting member is arranged between the groove of the pipe, and the upper and lower ends are fixed to the upper and lower ends of the outer pipe, respectively, and a plurality of spherical bodies are connected to the cord at predetermined intervals, and the inner pipe is An operating rod having a pressing body at the upper end and a control body fixed at the lower end, an engagement body whose engagement with the adjusting member is locked by the control body, and the engagement body. The first coil spring for urging the time adjustment member side and the lower surface of the control body are arranged to urge the control body upward. A second coil spring, a first chamber fixed to the lower end of the inner pipe, into which the adjusting member is inserted, and a second chamber accommodating the control body, the engagement body, and the first and second coil springs. And a cover body having the same.

According to the second aspect of the present invention, notches are formed so as to oppose the upper and lower ends of the outer tube, and the upper and lower cord ends of the adjusting member are respectively locked in the notches, so that It is designed to be fixed by each cap inserted into the lower end opening.

[0009]

[Embodiment of the invention]

 An embodiment of the present invention will be described below with reference to FIGS. 3 to 5. FIG. 3 is a fragmentary exploded perspective view of a baggage towbar adjusting device according to an embodiment of the present invention, FIG. 4 is a longitudinal sectional view of the same assembled state, and FIG. 5 is a baggage bag towbar adjusting device. It is a perspective view which shows a use condition.

In FIG. 3, reference numeral 20 denotes an outer tube having a quadrangular horizontal cross section, and notches 21 are formed at upper and lower ends 20a and 20b of the outer tube 20 so as to face each other. Reference numeral 30 denotes an inner tube that is slidably inserted into the outer tube. The inner tube 30 is formed with a concave groove 31 that is curved and protrudes inward of the inner tube 30 so as to be continuous in the upward and downward directions. ing. Reference numeral 40 denotes an adjusting member for positioning the inner pipe 30 when expanding and contracting. The adjusting member 40 is formed by connecting spherical bodies 41 with cords 42 at predetermined intervals of about 10 mm. It is arranged in the space formed by the inner wall surface of 20 and the concave groove 31 of the inner pipe 30, and the upper and lower ends are respectively inserted into the notches 21 of the outer pipe 20 and locked, and the upper and lower caps 50 are used. Each is fixed. Reference numeral 60 denotes an operating rod for engaging and disengaging the positioning when the inner pipe 30 is expanded and contracted. A pressing body 61 is fixed to the upper end of the operating rod 60 and a control body 70 is fixed to the lower end.

Reference numeral 80 denotes an engaging body having two concave portions 80 a, 80 a which engage with the spherical body 41 of the adjusting member 40, and is biased toward the spherical body 41 side in the horizontal direction by the first coil spring 81. It has become. A second coil spring 82 is in contact with the lower end of the control body 70 and always pushes the operating rod 60 upward to cause the pressing body 61 to slightly protrude from the upper open end of the inner pipe 30, and 90 is the control body 70 and The cover body accommodates the engaging body 80, and the cover body 90 is divided into two parts, and the upper small diameter portion 91 is press-fitted and fixed in the lower end opening 30a of the inner pipe 30, and the step of the lower large diameter portion 92 is formed. Press-fitting is regulated by the portion 92a. The large diameter portion 92 of the cover body 90 has a first chamber 93 in which the spherical body 41 of the adjusting member 40 is inserted and a second chamber 94 in which the engaging body 80 and the control body 70 are housed. The partition wall 95 that separates the first chamber 93 and the second chamber 94 is provided with an opening hole 96 that allows the engagement body 80 to move in the horizontal direction. In the above configuration, a pair is arranged on the left and right sides of the bag 98, and the grips 97 are fixed to the upper end portions 30b of the left and right inner pipes 30, respectively. Only one is described and the other is omitted.

According to the towbar adjusting device for a luggage bag of the present invention configured as described above, when the inner tube 30 is in use, as shown in FIG. 4, inside the second chamber 94 of the cover body 90. The engaging body 80 accommodated in the above is urged toward the adjusting member 40 side by the first coil spring 81, and horizontally moves and projects from an opening hole 96 formed between the cover body 90 and the first chamber 93. The two recesses 80a, 80a of the engaging body 80 and the spherical body 41 are engaged with each other, and the inner tube 30 cannot be expanded or contracted, and is locked.

To release the locked state, the pressing body 61 is pushed downward against the second coil spring 82, so that the control body 70 fixed to the lower end of the operating rod 60 is covered by the cover body 90. When the control body 70 and the engagement body 80 are disengaged from each other, the lock state is released. When the inner tube 30 is slid in the desired downward direction in this state, the engaging body 80 is housed in the second housing chamber 94 of the cover body 90 as shown by the chain double-dashed line in FIG. Can be disengaged. When the pressing of the pressing body 61 to the lower side is stopped while the inner pipe 30 is moved to the proper position, the lower end control body 70 of the operating rod 60 is urged upward by the second coil spring 82 arranged below. Thus, the engagement piece 70a of the control body 70 abuts on the engagement piece 80b of the engagement body 80 engaged with the spherical body 41 to bring the engagement body 80 into the engagement locked state.

FIG. 5 shows a luggage bag 98 to which the tow rod adjusting device of the present invention is applied. According to the embodiment, the outer tube 20 is arranged with the upper end opening protruding outward from the inner surface side of the bag 98, but the present invention is not limited to this, and the outer tube 20 may be installed on the outer surface side of the bag. It is of course also possible to fix the tube.

[0015]

[Effect of the invention]

 As described above, the towbar adjusting device according to claim 1 is a towbar adjusting device for a baggage for luggage having a traveling wheel at a lower end thereof and a towbar with a handle having a length adjusting function. A pair of left and right outer pipes fixed to the side surfaces of the bag, and a pair of left and right outer pipes that are slidably fitted in the outer pipes and that have concave grooves that are continuous in the upper and lower directions on the outer face. The inner pipe is arranged between the inner wall surface of the outer pipe and the concave groove of the inner pipe, and the upper and lower end portions are fixed to the upper and lower end portions of the outer pipe, respectively, and a large number of spherical bodies are used as cords at predetermined intervals. The adjustment member connected to each other by the control rod and the operating rod arranged in each of the inner pipes and having a pressing body at the upper end portion and a control body fixed at the lower end portion are engaged with the adjustment member by the control body. An engagement body to be locked; a first coil spring for constantly urging the engagement body toward the adjusting member; A second coil spring that is disposed on a surface and biases the control body upward; a first chamber that is fixed to the lower end portion of the inner pipe and through which the adjusting member is inserted; the control body, the engaging body, and the first chamber. Since the outer tube is integrally molded, it can be provided very easily and inexpensively, and the cover member having the second chamber for accommodating the second coil spring can be provided. Since the engaging mechanism of the engaging body is not complicated and can be easily manufactured, the work process time is shortened and the manufacturing cost can be reduced.

Further, according to the invention of claim 2, notches are formed so as to face the upper and lower ends of the outer tube, and the upper and lower cord ends of the adjusting member are respectively locked in the notches, Since the caps are inserted into the upper and lower openings of the pipe to fix them, the adjustment member can be attached to the outer pipe quickly and easily, and the product can be provided at low cost. effective.

[Brief description of the drawings]

FIG. 1 is a broken exploded perspective view of a conventional towbar adjusting device.

FIG. 2 is a vertical cross-sectional view showing an assembled state of the towbar adjusting device of FIG.

FIG. 3 is a broken exploded perspective view of the towbar adjusting device according to the embodiment of the present invention.

4 is a longitudinal sectional view showing an assembled state of the towbar adjusting device of FIG.

FIG. 5 is a perspective view showing a use state of the towbar adjusting device according to the embodiment of the present invention.

[Explanation of symbols]

 20 outer pipe 21 notch 30 inner pipe 31 concave groove 40 adjusting member 41 spherical body 42 cord 50 cap 60 operating rod 61 pressing body 70 control body 80 engaging body 81 first coil spring 82 second coil spring 90 cover body 93 first chamber 94 second chamber 95 partition wall 96 opening hole 97 handle 98 bag

Claims (2)

[Utility model registration claims] 1. A towbar adjusting device for a luggage bag having a traveling wheel at a lower end thereof and a towbar with a handle having a length adjusting function, wherein a pair of left and right fixed to a side surface of the bag is provided. Outer pipes, a pair of left and right inner pipes slidably fitted in the respective outer pipes and having concave grooves extending upward and downward on the outer surface, and the inner wall surface of the outer pipes and the concave portions of the inner pipes. Disposed between the grooves, the upper and lower ends thereof are respectively fixed to the upper and lower ends of the outer pipe, and an adjusting member in which a large number of spherical bodies are connected to the cord at predetermined intervals, and the adjusting members are arranged in the inner pipes, respectively. An operating rod having a pressing body at the upper end and a control body fixed at the lower end, an engagement body that locks engagement with the adjustment member by the control body, and the engagement body always attached to the adjustment member side. A first coil spring for urging, and a second coil which is arranged on the lower surface of the control body and urges the control body upward. Second spring which is fixed to the lower end of the inner pipe and through which the adjustment member is inserted, and the control body, the engagement body, and the first and second coil springs.
A towbar adjusting device for a baggage for luggage comprising a cover body having a chamber. 2. The notch is formed so as to face the upper and lower ends of the outer tube, and the upper and lower cord ends of the adjusting member are respectively locked in the notches to be inserted into the upper and lower openings of the outer tube. 2. The towbar adjusting device for a luggage bag according to claim 1, wherein the towbar adjusting device is fixed by each of the caps.