JPH0130485B2 - - Google Patents

Description

Detailed Description of the Invention For example, among a group of unit shelves arranged such that their adjacent frontages collide with each other when converging and are movable in the depth direction, the space between any adjacent unit shelves corresponds to a passage. In a manually operated movable shelf configured to form a space where the shelves can be moved, the handles of the required unit shelves are rotated to move the shelves, thereby exposing the shelf frontage, which is the loading/unloading surface of the required unit shelves.

In this manual movable shelf, the handle and the wheels are always connected, so when the handle of the desired unit shelf is rotated, the unit shelf starts traveling, and when the handle of the unit shelf is released, the handle is always connected. However, the unit shelf is self-propelled by the inertia, and the handle is also rotated by the rotational torque transmitted from the wheels, and the handle of the driven unit shelf pushed by the self-propelled unit shelf is also rotated by the rotational torque transmitted from the wheels. There is a risk that the handles may rotate and cause an accident if they come into contact with a person standing near the unit shelf, and furthermore, after the passageway is formed, the handles of each unit shelf face in arbitrary directions, making it unsightly. .

The inventor of the present invention devised a manually operated movable shelf that overcomes these difficulties, and filed an application for registration on January 28, 1978 (Utility Application No. 52-8334, Utility Model Application No. 53-104118).
In this invention, the clutch plate and the ball interposed in the clutch remain attached to either or both of the clutch plate and the clutch due to the viscosity of anti-friction oil, grease, or interposed debris, and the handle The rotational force of the steering wheel may not be transmitted even if you operate the steering wheel, or the rotation of the wheels may be transmitted to the steering wheel even if you take your hands off the steering wheel, which may make it impossible to achieve the intended purpose. Ta.

Furthermore, since a large wedge force is applied to a wedge member such as a ball interposed between the clutch plate and the clutch, the wedge member is easily damaged and suffers from severe wear and tear, resulting in a lack of durability.

The present invention relates to an improvement of a manual drive device for a mobile storage device that eliminates such drawbacks, and in a mobile storage device consisting of a plurality of storage units movably supported on the floor or ceiling, the storage units are a concave-convex rotating member directly or indirectly coupled to a drive shaft to be driven; an operating means that is vertically suspended and is provided so as to be able to freely rotate concentrically relative to the rotating member; The operating means in a vertically hanging state includes a symmetrical curved hook located above the center of gravity of the curved hook described later and pivotally supported to be able to swing symmetrically, and when the operating means is in a vertically hanging state. , in a state in which the left-right symmetrical curved hook is suspended downward, both end locking portions of the curved hook are disengaged from the uneven rotation member, and the operating means is rotated from a vertically hanging state to either side, The curved hook is formed in such a shape that a curved hook locking portion on a rotation side of the operating means is engaged with the uneven rotation member, and a curved hook locking portion on the opposite side is disengaged from the uneven rotation member, and Transmitting the rotational torque of the operating means to the drive shaft via the uneven rotation member,
It is characterized by blocking rotational torque in a direction relatively opposite to the rotational torque, and its purpose is to ensure that rotational torque is transmitted from the operating means to the drive shaft, and from the drive shaft to the operating means. Another object of the present invention is to provide a manual drive device for a movable storage device in which rotational torque is reliably cut off.

Since the present invention is configured as described above, when the operating means is left alone, the operating means is maintained in a vertically hanging state, and the locking portion of the curved hook is released from the uneven rotating member. Therefore, when any one of the plurality of storage units is driven and the other storage units are driven, the recirculation torque from the drive shaft of this driven storage unit is not transmitted, and the driven storage unit is driven. The operating means of the unit remains stopped, and a person standing near the driven storage unit is safe without the risk of coming into contact with the operating means.

Further, in the present invention, when the operating means is left unattended,
When the locking part of the curved hook is disengaged from the uneven rotating member, the operating means are vertically suspended, and the operating means of each storage unit are all oriented in a fixed direction, so that the appearance is not impaired.

Furthermore, in the present invention, when the operating means is rotated from a vertically hanging state to either side, the locking portion of either one of the curved hooks is engaged with the uneven rotating member, and the rotational torque of the operating means is is transmitted to the drive shaft through the concave-convex rotating member, and the storage unit to which the drive shaft is attached is driven to expose a required loading/unloading surface and perform a predetermined loading/unloading operation.

If you touch the operating means and release your hand from operating it, even if the storage unit continues to move due to inertia, the rotational torque from the drive shaft of the movable storage unit will decrease. The information is not transmitted to the operating means, and the operating means remains suspended in a vertically hanging state, thereby preventing accidents caused by rotation of the operating means.

Further, in the present invention, since no wedge action is exerted on the uneven rotating member and the curved hook, significant wear is avoided and no unreasonable engagement force is generated, making it difficult for failure to occur and providing high durability.

Furthermore, in the present invention, the curved hook is made to hang down and one of the locking portions at both ends of the curved hook is engaged with the uneven rotation member, so that the uneven rotation member is operated by operating the operating means. When the rotary member is rotationally driven, there is no possibility that a tensile force will be applied to the curved hook and the curved hook will buckle, and therefore the curved hook can be freely formed into a thin and desired shape. I can do it.

Furthermore, in the present invention, the curved hook is formed in such a shape that when one of the locking portions of the curved hook is engaged with the uneven rotation member, the other locking portion is released from the uneven rotation member. Therefore, it is possible to greatly increase the number of concave and convex widths in the circumferential direction of the concavo-convex rotating member by decreasing it in small increments, and as a result, the one-way clutch function that transmits operating force in only one direction is lost. By simply rotating the operating means to a slight rotation angle,
Operation force can be transmitted to the uneven rotating member.

As described above, in the present invention, the angle of the operating means that can engage the locking portion of the curved hook with the concave-convex rotating member and start rotating the concave-convex rotating member, that is, the operation start operation angle, is reduced. Therefore, it is possible to simultaneously improve the operability and maintain the one-way clutch function that transmits the operating force from the operating means in only one direction to the concave-convex rotating member.

The embodiments shown in FIGS. 1 to 5 in which the present invention is applied to a manually operated movable shelf will be described below.
1 is a side plate 2, a top plate 3, an underframe 4, a pillar 5, and a shelf board 6
The wheels 7, which are pivotally supported at the lower end of the unit shelf 1, can run freely on guide rails 8 laid parallel to each other on the horizontal floor in the depth direction. , placed on the guide rail 8.

Moreover, on one side plate 2 of the unit shelf 1,
A rotating shaft 9 is pivotally supported at a height suitable for operation, and is connected to the wheel 7 via a suitable transmission mechanism such as a sprocket or chain (not shown).

Further, a toothed disc 10, which is a concave-convex rotating member, is integrally fitted onto the rotating shaft 9, and a handle body 12 is connected to the handle body 12 via a bearing 11 so that it can rotate freely concentrically and relatively to the toothed disc 10. is loosely fitted, and the handle 13 is perpendicular to the tip of the handle body 12.
is installed.

Furthermore, in an annular recess 14 that is located at the base of the handle body 12 and is formed concentrically with the toothed disc 10, a curved hook is located above the toothed disc 10 on the central axis of symmetry of the handle body 12. 1
The center of the hook 5 is pivoted to the left and right by a pin 19, and the end locking portion 16 of the curved hook 15
The inner locking surface 17 is formed in a shape to be engaged with the teeth of the toothed disk 10, and the outer end surface 18 of the distal end locking portion 16 is removed from the teeth of the toothed disk 10. It is formed in such a shape.

Note that 20 is a lid that covers the annular recess 14 .

Since the embodiment shown in FIGS. 1 to 5 is constructed as described above, when the handle body 12 is suspended vertically as shown in FIG. Away from the inner circumferential surface of the annular recess 14, the inner locking surface 17 of the tip locking portion 16 is detached from the toothed disk 10, and the toothed disk 1
0 and the handle body 12 are disconnected, and even if the rotating shaft 9 rotates in response to the rotation of the wheel 7 when the other unit shelf 1 runs, the curved hook 15 and the handle body 12 remain stopped. Therefore, the handle body 12 can maintain a vertically hanging state.

In the state shown in FIG. 3, as shown in FIG.
2 is rotated in the direction of the hour hand, for example, the curved hook 15 attempts to maintain its vertically hanging state, and its left inner locking surface 17 locks on the toothed disk 10, and thus the rotation torque acting on the handle body 12 in the direction of the hour hand is The unit shelf 1, which is transmitted to the rotation shaft 9 and equipped with the handle body 12, can move by itself.

When the manual movable shelf is stopped, all the handle bodies 12 of each unit shelf 1 can return to the vertical state, so that it is not unsightly and can give the user a sense of security.

In addition, in the embodiment shown in FIGS. 1 to 5, when the handle body 12 is rotated from a vertically hanging state to either the left or right direction, the inside of the tip locking portion 16 of the curved hook 15 on the rotated side is Locking surface 1
7 is engaged with the teeth of the toothed disk 10, and when the inner locking surface 17 of one tip locking portion 16 is engaged with the tooth of the toothed disk 10, the other tip locking portion Since the inner locking surface 17 of 16 is prevented from engaging with the teeth of the toothed disc 10, rigid coupling between the handle body 12 and the wheel 7 is reliably prevented, and inconveniences such as accidents due to this rigid coupling are prevented. be prevented from happening.

Furthermore, since the wedge action does not work to engage and disengage the toothed disc 10 and the handle body 12 due to the swinging of the curved hook 15, the engagement and disengagement is reliably performed with a slight rotation of the handle body 12, and there is no risk of malfunction. There are few
Moreover, because no excessive force is generated due to wedge action, there are fewer failures and high durability.

In all of the embodiments described above, the present invention is applied to movable shelves that can move in a direction perpendicular to the frontage. The present invention can also be applied to a movable shelf that can be pulled out in a direction parallel to the frontage.

Moreover, in the above embodiment, the movable storage device is applied to a movable shelf, but it is of course applicable to a movable storage device other than a movable shelf, such as a flat deck type movable storage device.

In addition to the type in which the storage unit moves in parallel, it can also be applied to a type in which the storage unit rotates.

[Brief explanation of drawings]

FIG. 1 is a side view of a manual movable shelf equipped with an embodiment of a manual drive device for a movable storage device according to the present invention;
Fig. 2 is a partial front view of the same, Fig. 3 is an enlarged front view of the main part of the embodiment, Fig. 4 is a vertical side view taken along the - line in Fig. 3, and Fig. 5 is its operating state. FIG. 1...Unit shelf, 2...Side plate, 3...Top plate, 4...
...Underframe, 5...Column, 6...Shelf board, 7...Wheel, 8
... Guide rail, 9 ... Rotating shaft, 10 ... Toothed disc, 11 ... Bearing, 12 ... Handle body, 13 ... Handle, 14 ... Annular recess, 15 ...
Curved hook, 16...Tip locking portion, 17...Inner locking surface, 18...Outer end surface, 19...Pin, 20...
…lid.

Claims (1)

[Claims] 1. In a mobile storage device consisting of a plurality of storage units movably supported on the floor or ceiling, etc., a concave-convex rotating member directly or indirectly connected to a drive shaft that drives the storage units, and a vertical An operating means is provided so that it is suspended and can freely rotate concentrically relative to the same rotating member, and the operating means in the vertically hanging state is located above the center of gravity of the curved hook described later and is symmetrical. When the operating means is vertically suspended, the symmetrical curved hook is suspended downward and engages the locking portions at both ends of the curved hook. are detached from the uneven rotating member, and when the operating means is rotated from a vertically hanging state to either side, a curved hook locking portion on the rotating side of the operating means is engaged with the uneven rotating member. forming the curved hook in such a shape that the curved hook locking portion on the opposite side is detached from the uneven rotation member, and transmits the rotational torque of the operating means to the drive shaft via the uneven rotation member; A manual drive device for a mobile storage device, characterized in that a rotational torque in a direction relatively opposite to the rotational torque is cut off.