JP4019495B2 - Hanger stand transport cart - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a carriage used for transporting and storing a number of hanger stands with caster wheels.
[0002]
[Prior art]
The present applicant has previously proposed a cart that loads and transports a large number of hanger stands having a structure in which two struts erected on horizontal legs having caster wheels are connected by a hanger bar (No. 2-22382). )did. The trolley was provided with left and right pedestal frames that directly supported the left and right horizontal legs of the hanger stand on a four-wheel base frame.
[0003]
[Problems to be solved by the invention]
Since the above-mentioned cart is a system in which the left and right receiving frames are fixed to the base frame having a constant left and right width in accordance with the interval between the columns of the hanger stand, only the hanger stand having a fixed column interval can be loaded. Therefore, there is a problem that the equipment cost increases because various types of carts are prepared according to the hanger stand with various support intervals. In addition, the hanger stand cart having a large interval between the columns has a problem that it is inconvenient to transport and store the cart itself.
[0004]
The present invention has been made in order to solve these problems, and the problem is that the carriage is capable of adjusting the interval of the receiving frame in accordance with the interval between the columns of the hanger stand, The object of the present invention is to provide a vehicle that can reduce the interval between the cradle frames when carrying or storing the trolley itself.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the means employed by the present invention is a hanger stand transporting method in which horizontal legs of left and right columns of a plurality of hanger stands are arranged side by side on left and right receiving frames fixed to the left and right of a four-wheel base frame. In a trolley, an inner tube in which the front and rear beams of the base frame are separated from the left and right outer tube portions, one end portion is fixed to one outer tube portion, and the other end portion is slidably inserted into the other outer tube portion. A locking means for detachably fixing the inner tube portion to the other outer tube portion is provided so that the lateral width of the base frame can be adjusted.
[0006]
Adjust the insertion length of the inner tube section to the outer tube section to match the left and right width of the base frame, that is, the distance between the left and right cradle frame, to the interval of the struts of the hanger stand to be loaded. Lock the outer tube to fix the width of the base frame.
This locking means is preferably constituted by a lock bolt inserted from the outside to the inside of the outer tube portion and a nut integrally provided on the inner tube portion and screwed to the lock bolt. The number and position of the nuts provided in the inner pipe portion are set according to the type of hanger stand to be loaded in advance and the column spacing.
[0007]
When the outer pipe part and the inner pipe part are made of a relatively thin steel pipe, a bolt through hole is drilled in the outer pipe part steel pipe, and a lock plate with a screw hole communicating with the bolt through hole is fixed to the outside. It is desirable that a bolt through hole communicating with the outer pipe steel pipe bolt through hole is formed in the inner pipe steel pipe, and a nut is coaxially fixed to the back surface of the inner pipe steel pipe bolt through hole.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described based on the cart of the embodiment shown in the drawings. This cart can expand and contract the left and right widths of the base frame in accordance with the support interval of the hanger stand.
FIG. 1 is a perspective view of a cart with an extended base frame, and wheels are omitted for easy viewing.
[0009]
2 and 3 are a plan view and a side view of the carriage, respectively, where a solid line indicates a state where the base frame is shortened and a chain line indicates a state where the base frame is extended.
4 and 5 are a longitudinal sectional view and a transverse sectional view of the main part of the base frame of the carriage.
FIG. 6 is a plan view of a cart loaded with a hanger stand.
As shown in FIGS. 1 and 2, the base frame 1 has a parallelogram shape, two front and rear beams 2 extending left and right, and two ends welded to the front and rear beams 2 extending obliquely with respect to the front and rear direction. It consists of three bars 3 in the middle left and right. The front / rear beam 2 includes rectangular steel pipe outer pipe portions 4 and 5 that are separated into right and left, and a square steel pipe inner pipe portion 6 that is inserted into the outer pipe portion. A right end portion of the inner tube portion 6 is inserted and fixed in the right outer tube portion 5, and a portion protruding leftward from the right outer tube portion 5 is slidably inserted into the left outer tube portion 4. A wheel seat 7 for attaching a wheel is welded and fixed to the left end portion of the front and rear left outer tube portions 4 and the right end portion of the right outer tube portion 5.
[0010]
As shown in FIGS. 1, 2 and 3, two T-shaped brackets 8 are welded to the left and right bars 3, respectively, and the left and right cradle frames 9 are welded and fixed to the brackets. . The left and right receiving frame 9 is a parallelogram, and is formed of a short side portion 10 extending in the front-rear direction and an oblique side portion 11 parallel to the bar 3. The short side portion 10 protrudes higher than the oblique side portion 11. If necessary, a name plate 13 is attached to one receiving frame 9. A lock plate 19 for screwing a lock bolt into the left outer pipe portion 4 is welded and fixed. As shown in FIG. 3, a fixing portion of the wheel 12 is fixed to each wheel seat 7 with a bolt.
[0011]
As shown in FIGS. 4 and 5, a screw hole is formed in the lock plate 19 fixed to the left outer tube portion 4 and a lock bolt 20 is screwed. Bolt through holes 16 and 18 through which the lock bolt 20 passes are formed in the outer tube portion 4 and the inner tube portion 6. A nut 17 is welded and fixed to the back surface of the bolt through hole 18 of the inner tube portion 6, and a lock bolt 20 is screwed into the nut to lock the inner tube portion 6 to the outer tube portion 4. Steel wires 14 for improving slippage are welded to both sides of the upper and lower surfaces of the inner pipe portion 6. A stopper plate 15 in contact with the steel wire 14 is welded and fixed to the left end surface of the inner pipe portion 6. In order to define the pull-out limit of the inner tube portion 6, the upper surface of the left outer tube portion 4 is in contact with the right surface of the stopper plate 15 of the inner tube portion 6 so that the inner tube portion 6 can no longer come out of the left outer tube portion 4. Screw the stopper 21 to be made.
[0012]
The number of bolt through holes 18 and nuts 17 in the inner pipe portion 6 is the same as the number of support column intervals of the hanger stand to be loaded. For example, three types of carts of hanger stands with support spacings of 600 mm, 900 mm, and 1200 mm are provided with bolt through holes and nuts at three positions where the left and right widths of the base frame 1 are 600 mm, 900 mm, and 1200 mm, respectively.
[0013]
When the lock bolt 20 is loosened and the inner tube portion 6 is inserted into the left outer tube portion 4 to the limit, the left and right outer tube portions 3 and 4 of the beam 2 come into contact as shown by the solid line in FIG. Therefore, when the lock bolt 20 is screwed into the nut at the right end of the inner tube portion 6, the lateral width of the base frame 1 becomes the minimum, for example, 600 mm. The cart with the minimum left and right width of the base frame 1 of 600 mm is for a hanger stand with a support interval of 600 mm. Moreover, if the left-right width of the base frame 1 is minimized, the carriage itself can be easily stored or transported.
[0014]
Next, the lock bolt 21 is loosened, and the inner pipe portion 6 is pulled out from the left outer pipe portion 4 by about half. Then, when the lock bolt 21 is screwed into the middle nut of the central inner pipe portion 6 again, the chain line in FIG. As shown, the base frame 1 has an intermediate left and right width, for example, 900 mm. In this case, the base frame 1 is for a hanger stand having a support interval of 900 mm.
As shown in FIG. 6, the hanger stand 30 hangs the horizontal leg 32 of the support 31 between the oblique sides 11 of the left and right receiving frame 9 and loads them side by side as shown in FIG. The front and rear short side portions 10 of the cradle frame 9 protrude higher than the oblique side portion 11 to prevent the hanger stand 30 during transportation from falling off.
[0015]
Further, the lock bolt 21 is loosened, and the inner tube portion 6 is pulled out from the outer tube portion 4 until the stopper 21 comes into contact with the stopper plate 15, as shown in FIG. When the base frame 1 is screwed into the left end nut, the maximum width of the base frame 1 is, for example, 1200 mm. At this time, a hanger stand with a support interval of 1200 mm is loaded.
[0016]
As an embodiment, the one in which the front and rear beams 2 are expanded and contracted and three types of length hanger stands are loaded is shown. However, the carriage of the present invention has the lengths of the outer tube portions 4 and 5 and the inner tube portion 6 of the front and rear beams. In addition, by appropriately setting the number and positions of the bolt through holes 16 and nuts 17 of the inner pipe portion 6, it is possible to load and carry a hanger stand with any three or more types of strut spacing. .
[0017]
【The invention's effect】
As described above, the cart of the present invention is different from the conventional base frame in which the left and right width is constant, so that the left and right width of the base frame can be adjusted according to the interval between the columns of the hanger stand. There is an excellent effect that various types of hanger stands having different column intervals, for example, three types of hanger stands having column intervals of 600 mm, 900 mm, and 1200 mm can be loaded and transported. In addition, when the left and right width of the base frame is minimized, a special effect that the storage and transportation of the cart itself can be easily obtained.
[Brief description of the drawings]
FIG. 1 is a perspective view of a carriage according to an embodiment of the present invention, and shows a state in which a base frame is extended to the limit with wheels omitted for easy viewing.
FIG. 2 is a plan view of the carriage of FIG.
3 is a side view of the cart of FIG. 1,
4 is a partially enlarged cross-sectional view of the carriage of FIG.
FIG. 5 is a view taken along the line VV in FIG.
6 is a plan view showing a state in which a hanger stand is loaded on the cart of FIG.
FIG. 7 is a perspective view showing an arrangement state of a hanger stand when the carriage is loaded,
[Explanation of symbols]
1: base frame 2: beam 3: bar 4: outer tube portion 5: outer tube portion 6: inner tube portion 7: wheel seat 8: bracket 9: pedestal frame 10: short side portion 11: oblique side portion 12: wheel 13: Name plate 14: Steel wire 15: Stopper plate 16: Bolt through hole 17: Nut 18: Bolt through hole 19: Lock plate 20: Lock bolt 21: Stopper 30: Hanger stand 31: Post 32: Horizontal leg

Claims (2)

A carriage for carrying left and right horizontal legs of a plurality of hanger stands on left and right receiving frames (9) fixed to the left and right of a four-wheeled base frame (1), wherein the base frame includes front and rear beams. (2) and a bar (3) for connecting the beam. One end of the beam is fixed to the left and right outer tube portions (4, 5) and one of the left and right outer tube portions (5). The other end portion is provided with an inner tube portion (6) slidably inserted into the other outer tube portion (4), and the other outer tube portion has a locking means (17) for fixing the inner tube portion. 20), steel wires (14 ) are provided on both sides of the upper and lower surfaces of the inner pipe portion, and stopper plates (15) in contact with the steel wire are provided on end surfaces of the other end portion of the inner pipe portion, respectively. A stopper (21) which is welded and abuts against the stopper plate on the upper surface of the outer tube portion to define a pull-out limit of the inner tube portion Hanger stand carrying truck, characterized in that it is screwed. The lock means includes a lock bolt (20) provided so as to be inserted into the outer tube portion from the outside to the inside, and a nut (17) integrally provided on the inner tube portion and screwed with the lock bolt. The trolley for transporting a hanger stand according to claim 1, wherein

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