JPS6247523B2 - - 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. When the handle rotates, there is a risk that the handle may come into contact with a person standing near the unit shelf, causing an accident, and furthermore, after the passageway is formed, the handle of each unit shelf faces in an arbitrary direction, 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 Even if you operate the handle, the rotational force of the steering wheel may not be transmitted, or even if you take your hands off the handle, the rotation of the wheels may be transmitted to the handle, making it impossible to achieve the intended purpose. It was hot.

Moreover, since a large wedge force acts on 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 lacks 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 rotating member with an uneven inner peripheral surface that is directly or indirectly connected to the drive shaft to be driven, and an operation that is suspended vertically and is provided so that it can freely rotate concentrically relative to the rotating member. means, a pair of left and right locking claws that are pivotally supported on the operating means in a vertically hanging state above the center of gravity of the locking claws described later so as to be able to freely swing symmetrically; and the pair of locking claws. When the operating means is vertically suspended, the pair of left and right locking claws are respectively suspended downward, and both of the pair of locking claws are connected to the inner a positional relationship in which the one locking pawl is engaged with the inner circumferential surface uneven rotating member when the operating means is rotated from the vertically hanging state to either direction while being separated from the rotating member having the uneven circumferential surface; The pivot positions of the pair of left and right locking claws with respect to the operating means are set, and when one of the locking claws is engaged with the inner peripheral surface uneven rotating member, the other locking claw is Both ends of the connecting rod are pivotally connected to the pair of locking pawls in a dimensional relationship that prevents the locking pawls from being engaged with the rotation member with the uneven inner peripheral surface, and the rotational torque of the operating means is transferred to the rotational member with the unevenness. It is characterized by transmitting the rotational torque to the drive shaft via a rotating member and blocking rotational torque in a direction relatively opposite to the rotational torque. The object of the present invention is to provide a manual drive device for a mobile storage device in which rotational torque is reliably transmitted and rotational torque is reliably cut off from the drive shaft to the operating means.

Since the present invention is configured as described above, when the operating means is left unattended, the operating means is maintained in a vertically hanging state, and the pair of left and right locking claws are rotated by the unevenness of the inner circumferential surface. separated from the member,
Therefore, when any one of the plurality of storage units is driven and the other storage units are driven, the rotational torque from the drive shaft of this driven storage unit is not transmitted, and the rotational torque of the driven storage unit is The operating means 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, the pair of left and right locking claws are disengaged from the inner peripheral surface uneven rotating member, and the operating means is vertically suspended, and the operating means of each storage unit is All are oriented in the same direction, so the appearance is not impaired.

Furthermore, in the present invention, when the operating means is rotated from the vertically hanging state to either the left or the right, only one of the locking pawls of the pair of left and right locking pawls is connected to the uneven rotating member on the inner circumferential surface. The rotational torque of the operating means is transmitted to the drive shaft via the inner peripheral surface uneven rotation member, and the storage unit to which the drive shaft is attached is driven to perform the required loading/unloading. The surface is exposed and predetermined loading/unloading operations are performed.

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 rotating member with the uneven inner circumferential surface and the locking pawl, significant wear is avoided and no unreasonable engagement force is generated, resulting in less failure and high durability. I'm here.

Furthermore, in the present invention, when one of the pair of left and right locking pawls is engaged with the inner circumferential surface uneven rotating member, the locking pawl is connected to the one of the left and right locking pawls. Since the pair of left and right locking pawls are formed in a shape and dimension relationship such that the other locking pawl connected by a rod is detached from the rotation member with concave and convex portions on the inner circumferential surface, the rotation of the concave and convex portions on the inner circumferential surface occurs. It becomes possible to greatly increase the number of parts by reducing the width of the irregularities in the circumferential direction of the member, and as a result, the operation means can be operated without losing the one-way clutch function that transmits the operating force in only one direction. By simply rotating the rotating member to a small rotation angle, the operating force can be transmitted to the rotating member having irregularities on the inner circumferential surface.

As described above, in the present invention, the angle of the operating means is such that the pair of left and right locking pawls can be engaged with the rotation member having projections and depressions on the inner peripheral surface, and the rotation member can start rotating the rotation member. In other words, the operation start angle is reduced to improve operability.
At the same time, it is possible to maintain a one-way clutch function that transmits only one-way operating force from the operating means to the rotating member having irregularities on the inner circumferential surface.

Hereinafter, the embodiment shown in FIGS. 1 to 5 in which the present invention is applied to a manually operated movable shelf will be explained. The wheels 7, which are pivotally supported at the lower end of the unit shelf 1, move freely on the guide rails 8 laid parallel to each other on the horizontal floor surface in the depth direction. It is placed on the 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 disk 10, which is a rotating member with an uneven inner circumferential surface, is fitted integrally with the rotating shaft 9, and a handle body 11 is configured to rotate freely concentrically and relatively to the toothed disk 10. A handle 12 is loosely fitted and is attached at right angles to the tip of the handle body 11.

Furthermore, in an annular recess 13 that is located at the base of the handle body 11 and is formed concentrically with the toothed disc 10, a straight line that is perpendicular to the axis of symmetry of the handle body 11 and passes through the axis of the rotation shaft 9 is inserted. A pair of locking claws 14 and 15 are symmetrically and swingably connected to pins 17a and 17b on a straight line that substantially coincides with
The pair of left and right locking pawls 14, 15 are swingably connected to each other by a connecting rod 16 at their hanging ends, and each of the end locking portions 14a, 15a is shaped to engage with the teeth of the toothed disc 10, and the locking pawl 1
4, 15 in the vertically hanging state, the locking portions 14a, 1
5a are all arranged in a dimensional relationship such that they are located inward from the tip circle of the toothed disk 10.

Since the embodiment shown in FIGS. 1 to 5 is constructed as described above, when the handle body 11 is suspended vertically as shown in FIG. 15 tip locking portions 14a, 1
5a are both separated from the teeth of the toothed disc 10, the toothed disc 10 and the handle body 11 are disconnected, and the rotating shaft 9 is rotated in response to the rotation of the wheel 7 when the other unit shelf 1 runs. Even if it rotates, the locking claws 14, 15
Then, the handle body 11 remains stopped, and the handle body 11 can maintain a vertically hanging state.

In the state shown in FIG. 3, when the handle body 11 is rotated, for example, in the direction of the hour hand by gripping the handle 12, the locking pawls 14 and 15 try to maintain the vertically hanging state, and one of the locking pawls 15 The tip locking portion 15a engages with the teeth of the toothed disc 10. At this time, since the respective locking claws 14 and 15 are mutually connected by the connecting rod 16, the vertical hanging posture is maintained by the weight of each member 14, 15, and 16 as a whole, and the locking claws 15 and the toothed disc 10 The engagement with the device is ensured. In this way, the rotational torque in the direction of the hour hand acting on the handle body 11 is transmitted to the rotating shaft 9, and the unit shelf 1 equipped with the handle body 11 can move by itself.

When the manual movable shelf is stopped, all the handle bodies 11 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.

Further, in the embodiment shown in FIGS. 1 to 5, when the handle body 11 is rotated from a vertically hanging state to either the left or right direction, only the tip locking portion of the locking pawl on the rotated side is turned into a tooth. The end locking portion 1 of one of the locking claws 15 is engaged with the teeth of the attached disc 10.
When 5a is engaged with the tooth of toothed disk 10,
The tip locking portion 14a of the other locking pawl 14 connected to the locking pawl 15 by the connecting rod 16 is connected to the toothed disc 10.
The handle body 1 is prevented from engaging with the teeth of the handle body 1.
1 and the wheel 7 is reliably prevented, and inconveniences such as accidents due to this rigid connection are prevented.

Furthermore, since the wedge action does not work to engage and disengage the toothed disc 10 and the handle body 11 due to the swinging of the locking pawls 14 and 15, the engagement and disengagement can be reliably performed with a slight rotation of the handle body 11, resulting in malfunction. Since there is less risk of damage and excessive force due to wedge action is not generated, 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 shelf opening.

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.

[Brief explanation of the drawing]

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 the embodiment of the embodiment. 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 disk, 11 ... Handle body, 12 ... Handle, 13
...Annular recess, 14, 15...Latching claw, 16...
Connecting rods, 17a, 17b...pins.

Claims (1)

[Claims] 1. In a mobile storage device consisting of a plurality of storage units movably supported on a floor or ceiling, etc., a rotating member with an uneven inner circumferential surface coupled directly or indirectly to a drive shaft that drives the storage units; , an operating means that is vertically suspended and is provided so as to be able to freely rotate concentrically relative to the same rotating member; a pair of left and right locking claws that are positioned and pivoted symmetrically so as to be swingable;
It consists of a connecting rod that interconnects the pair of locking claws, and when the operating means is vertically suspended,
The pair of left and right locking claws are respectively suspended downward, and both of the pair of locking claws are separated from the uneven rotating member, and the operating means is rotated from a vertically hanging state to either one. In this state, the pivot positions of the pair of left and right locking claws with respect to the operating means are set in a positional relationship in which the one of the locking claws is engaged with the uneven rotating member, In the state where the pawl is engaged with the rotary member with uneven inner circumferential surface, the other end of the connecting rod is held in a dimensional relationship that prevents the other locking pawl from being engaged with the rotary member with concavo-convex inner circumferential surface. pivotally connected to the pair of locking claws;
A manual drive device for a mobile storage device, characterized in that the rotational torque of the operating means is transmitted to the drive shaft via the uneven rotation member, and the rotational torque in a direction relatively opposite to the rotational torque is cut off.