JPH057896Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application The invention has a plurality of upper and lower sliding shelves, and is used for moving goods on the floor or transporting them by truck while items are placed on these sliding shelves. The present invention relates to a shelf truck having sliding shelves.

BACKGROUND ART Conventionally, as seen in Japanese Patent Application Laid-open No. 60-151170, a shelf truck having a slide shelf of this type has a rectangular plate-shaped base with wheels at the bottom and wheels on both sides of the base. A pair of side frames are attached so that they can be raised up or down, shelf support rails are attached to the inner surfaces of these side frames in multiple levels, respectively, and a ceiling frame that can be attached or removed between the upper parts of both side frames that are fixed upright. a shelf that is slidably fitted in the front and rear directions between facing shelf support rails; and a stopper member that is vertically swingably attached to the front and rear surfaces of the top frame and whose free end can be fitted into and removed from the base from above. A configuration consisting of is provided.

According to this conventional type, by swinging the stopper member whose free end is detached from the base upward,
The shelf can be pulled out to take items in and out, and after the shelf is pushed in, the stopper member is swung downward,
By fitting the free end to the base, the stopper member prevents the shelf from popping out, for example, during travel.

Problems to be solved by the invention According to the above-mentioned conventional method, the stopper member that is swung upwards is locked to a locking device provided on the ceiling frame, but in this case, vibrations when handling the shelf, etc. This may cause the stopper member to become unlatched, causing the stopper member to swing (fall) downward under its own weight. Furthermore, if the shelf is not pushed in enough, the stopper member that is swung downward will catch on the protrusion of the shelf, and the shelf will have to be pushed in again.

The purpose of the present invention is to prevent the detached stopper member from falling, and to automatically compensate for the push-in by operating the stopper member to the working position when the push-in is insufficient. The object of the present invention is to provide a shelf truck having sliding shelves that can be slid.

Means for Solving the Problems In order to solve the above problems, the shelf cart with sliding shelves according to the present invention has a rectangular base with wheels at the bottom, and a pair of side frames erected from the front and rear ends of this base. , shelf support rails installed in multiple stages above and below on opposite sides of these side frames, a ceiling frame that connects the upper parts of both side frames, and a shelf fitted in between the opposing shelf support rails so as to be slidable in the left and right direction. a guide member attached to the end of the side frame so as to be swingable around the vertical axis; a stopper member provided at the free end of the guide member so as to be movable up and down; and the upper and lower ends of the stopper member are fitted. It consists of an upper fitting hole provided on the lower surface side of the ceiling frame for mating, and a lower fitting hole provided on the upper surface side of the base.

According to the configuration of the present invention, the stopper member is moved up and down with respect to the guide member to fit into or disengage from both fitting holes, thereby fixing or fixing the stopper member to the trolley body. Can be canceled. After the fixation is released, the guide member is swung around the vertical axis, thereby positioning the stopper member outside of both sides. Also, when the stopper member that has been released from fixation is swung around the vertical axis to fix it, the stopper member and guide member come into contact with the shelf that was not pushed in enough, and the swinging force prevents the shelf from being pushed in. I can do it. Further, when the shelf truck is moved on the floor and changes direction with the stopper member fixed to the truck body, centrifugal force acts on the shelf and the shelf is pressed against the stopper member. This stopper member is provided at the free end of the guide member that can swing freely around the vertical axis, but since the stopper member is fixed at its upper and lower ends, even if the above-mentioned pressing force acts on the stopper member, No rotation moment is generated around the vertical axis. This results in
The stopper member only needs to have enough strength to withstand the pressing force, and there is no need to form the guide member strongly.

Embodiment An embodiment of the present invention will be described below based on the drawings.

Reference numeral 1 denotes a rectangular frame-like base, on which a pair of left and right free wheels 2 are attached to the lower part of one side in the longitudinal direction, and a pair of left and right fixed wheels 3 are attached to the lower part of the other side. Support legs 4 are hung from the four corners of the base 1, and a receiving tray 5 with a lower receiving surface is attached to the lower ends of these supporting legs 4. Furthermore, side frames 6 are erected from the front and rear ends of the base 1, and these side frames 6
is composed of a pair of left and right vertical members 7, a damping plate 9 attached to the outer surface of the vertical members 7, and the like. A top frame 10 that connects the upper parts of the side frames 6 connects the front and rear members 11 that connects the vertical members 7 facing each other in the front and back, the vertical members 7 that face each other on the left and right, and the intermediate portions of both the front and rear members 11. left and right members 12 and these front and rear members 11
and the dump plate 1 attached to the outer surface of the left and right members 12.
It consists of 3 etc. A plurality of left and right shelf support rails 14 are installed at predetermined intervals in the vertical direction on the opposing surfaces of both side frames 6, and these shelf support rails 14 basically have a C-shaped cross section. It is arranged so that it faces inside the open part. A shelf 15 that is slidable in the left-right direction is fitted between the shelf support rails 14 that face each other in the front and back. This shelf 15
is an intermediate rail 17 supported and guided by the shelf support rail 14 via bearings (rollers) 16;
and a shelf board 18 installed between these intermediate rails 17.
It is formed into a rectangular flat plate framework shape, and the maximum amount of withdrawal thereof is regulated by a stopper mechanism (not shown) provided between it and the shelf support rail 14, and
It is also configured so that it can be completely pulled out if necessary. A cushioning material 19 is attached to the central portion of the shelf board 18 in the left and right direction, so that the shelf 15 can freely hold a total of four items 20 (the load itself, a load storage case, etc.), two items on the front and back, and two on the left and right sides. becomes.
A guide member 21 is attached to at least one end of the side frame 6 so as to be swingable around a vertical axis 22 . That is, the guide member 21 includes a hinge 23 whose one side is fixed to the vertical member 7, and a hinge 23 fixed to the vertical member 7 on one side.
It consists of a vertical guide tube 24 attached to the outer edge of the vertical member 3, and is arranged at two locations above and below the vertical member 7. Note that it may be located at three or more locations on the top and bottom, or at one location. A rod-shaped stopper member 25 is inserted between these guide cylinders 24 so as to be vertically movable. It is inserted through. And stopper member 2
A fall prevention member 26 that is received by the upper guide tube 24 is attached to the upper side of the slider 5 . Both upper and lower ends of the stopper member 25 have small diameters, and form a long upper fitting rod 27 and a short lower fitting rod 28. Reference numeral 29 indicates a handle attached to the middle of the stopper member 25, and reference numeral 30 indicates a connecting member between the other sides of the hinge 23. An upper fitting hole 31 is formed on the lower surface side of the top frame 10, into which the upper fitting rod 27 can be fitted from below, and a backing plate 32 guides the upper fitting rod 27.
has been established. Further, a lower fitting hole 3 is provided on the upper surface side of the base 1, into which the lower fitting rod 28 can be fitted from above.
3 is formed. A foot-operated floor locking device 34 is provided on the underside of the base 1. 3
Reference numeral 5 denotes a cover that covers the left and right open sides, and its upper end is fixed to the ceiling frame 10, and its hanging free end can be fixed to the base 1 with, for example, magic tape. 36 indicates a band, and 37 indicates a pocket.

Next, the operation of the above embodiment will be explained.

The solid lines in FIGS. 1 and 4 show a state in which the article 20 is stored and can be moved and transported.
That is, the guide member 21 is swung along the left and right sides, and the upper fitting rod 27 of the stopper member 25 is fitted into the upper fitting hole 31, and the lower fitting rod 28 is fitted into the lower fitting hole 33. I'm letting you do it. Further, shelves 15 are pushed between the shelf support rails 14, and articles 20 are placed on these shelves 15. Furthermore, both sides are covered with covers 35, and these covers 3
5 is tightened with a band 36. In this state, it can run freely on the floor and can be transported by loading it onto a truck. In this loading process, a plurality of stacks of real or empty shelf carts can be stably stacked by fitting the receiving tray 5 to the upper end of the vertical member 7 from above. With respect to vibrations during traveling and transportation, since stopper members 25 are opposed to both sides of the shelf 15 in the sliding direction, it is possible to prevent the shelf 15 from being pulled out unexpectedly. When taking out the article 20, the cover 35 is first raised and folded onto the top frame 10. Next, the stopper member 25 is moved upward via the handle 29, and the lower fitting rod 28 is pulled out from the lower fitting hole 33. Next, by utilizing the play between the guide cylinder 24 and the stopper member 25, the lower part of the stopper member 25 is swung outward, and the lower fitting rod 28 is brought out from above the base 1 to the side. When the stopper member 25 is moved downward, the lower fitting rod 28 moves down on the side of the base 1, so that the upper fitting rod 27 can be pulled out from the upper fitting hole 31 by this stroke. The descent of the stopper member 25 is regulated by the fall prevention member 26 coming into contact with the guide cylinder 24. Thereafter, the stopper member 25 and the guide member 21 are rotated around the vertical axis 22 and positioned outward from the side surface as shown by the imaginary line in FIG. 4 and the imaginary line in FIG. As a result, the shelf 15 is pulled out as shown by the imaginary line in FIG. 2, and the article 20 is taken out. The empty shelf 15 is pushed in, and the stopper member 25 and the like are set by performing the reverse operation to that described above. Note that if the shelf 15 is not pushed in enough and a portion protrudes, the stopper member 25, guide member 21, etc., which are swung toward the set side around the vertical axis 22, will come into contact with the protruding portion from the outside. And it will be pushed. Loading of articles 20 is performed in the same manner. Further, when the shelf truck changes direction while traveling on the floor with the stopper member 25 set, centrifugal force acts on the shelf 15 and the shelf 15 is pressed against the stopper member 25. This stopper member 25
is a guide member 21 that is swingable around a vertical axis 22.
However, since the stopper member 25 is fixed to the upper fitting rod 27 and the lower fitting rod 28, as shown in FIG.
Even if this acts on the stopper member 25, no rotational moment is generated around the vertical axis 22. Thereby, the stopper member 25 only needs to have enough strength to withstand the pressing force (F), and
There is no need to form the guide member 21 strongly.

In the above embodiment, in order to smoothly engage and disengage the stopper member 25, play is created between the stopper member 25 and the guide cylinder 24, but for example, the other side of the hinge 23 may be configured to bend with a leaf spring. , it can be inserted without play.

Effects of the Invention According to the present invention having the above configuration, the upper and lower ends of the stopper member are moved up and down with respect to the guide member, and the stopper member is fitted into or disengaged from both fitting holes, whereby the stopper member is attached to the main body of the truck. can be fixed or unfixed with a simple operation. After the fixing is released, by swinging the guide member around the vertical axis, the stopper members are positioned outside of both sides, and the shelf can be pulled out or pushed in. Even if there is vibration when handling this shelf, it will only cause the guide members etc. to shake slightly around the vertical axis, and will not affect the operator in any way.
Able to perform work safely. Furthermore, when the stopper member that has been released from fixation is swung around the vertical axis to fix it, the stopper member or guide member comes into contact with the shelf that is not pushed in enough, and the swinging force causes the shelf to be pushed in ( correction) can be performed automatically. Further, even if a pressing force is applied to the stopper member, since the upper and lower ends of the stopper member are fixed, no rotational moment is generated around the vertical axis of the guide member. Thereby, the stopper member only needs to have enough strength to withstand the pressing force, and there is no need to form the guide member strongly.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Figure 1 is a partially cutaway side view, Figure 2 is a partially cutaway front view, and Figure 3 is a partially cutaway front view.
The figure is a partially cutaway plan view, Figure 4 is a side view of the main part,
FIG. 5 is a plan view of the same, and FIG. 6 is a side view of essential parts showing the shelf support structure. 1...Base, 2...Free wheel, 3...Fixed wheel, 6...Side frame, 7...Vertical member, 10...Top frame, 1
4...Shelf support rail, 15...Shelf, 17...Intermediate rail, 18...Shelf board, 20...Article, 21...
Guide member, 22... Vertical axis, 23... Hinge, 2
4... Guide tube, 25... Stopper member, 26...
... Fall prevention material, 27 ... Upper fitting rod, 28 ... Lower fitting rod, 31 ... Upper fitting hole, 32 ... Backing plate, 33 ... Lower fitting hole.

Claims (1)

[Scope of utility model registration request] A rectangular plate-shaped base with wheels at the bottom, a pair of side frames erected from the front and rear ends of this base, shelf support rails attached to the opposite sides of these side frames in multiple stages above and below, and a pair of side frames on both sides. a top frame connecting the upper parts; a shelf fitted between opposing shelf support rails so as to be slidable in the left-right direction; and a guide member attached to an end of the side frame so as to be swingable around a vertical axis; A stopper member provided at the free end of the guide member so as to be movable up and down, an upper fitting hole provided on the lower side of the ceiling frame to fit the upper and lower ends of this stopper member, and a lower part provided on the upper side of the base. A shelf cart having a sliding shelf characterized by comprising a fitting hole.