JPS5825864Y2 - Handle type manual shelf clutch device - Google Patents

Description

[Detailed description of the invention] This invention is a handle-type manual shelf in which the shelf is moved by rotating the handle, and the rotational motion of the handle is transmitted to and driven by the wheels via a mechanical latch device. , relating to a clutch mechanism.

Handle-type manual shelves have been conventionally provided in which a single shelf is provided with wheels that roll on a traveling guide member and a rotating handle, and the shelves are moved via a mechanical deceleration mechanism by inputting an input operation to the wheels and a rotating handle.

Furthermore, the rotational force from the rotating handle is transmitted to the wheels, but the clutch mechanism prevents rotational motion from the wheels from being transmitted to the handle when the handle is left in the lowered position. has also been provided previously.

This kind of latch mechanism minimizes unnecessary rotation of the handles of the shelves that are pushed and moved when multiple shelves are pushed and moved at the same time, and also aligns the disordered handles to a fixed position. It has such functional and aesthetic effects.

Conventional clutch mechanisms are configured such that the handle is separated from the rotating member connected to the wheel only within a limited range where the handle reaches near the vertically lowered position. Or, if the handle is located near the top when a predetermined stop position is reached, the handle and the rotating member cannot be separated.

Therefore, if such a situation is repeated, the orientation of the handle becomes random and its effectiveness is reduced by half.

Therefore, the present invention provides a clutch mechanism that can be disconnected from the rotating member not only when the handle is in the vertically lowered position but also when the handle is in any position.

As a result, the handles of the shelves that are pushed and moved do not rotate unnecessarily, and the handles of the shelves operated by the handles can be returned to the vertically lowered position at any stop position, improving the above-mentioned drawbacks and improving functionality. , and is intended to provide an aesthetic effect.

Furthermore, if the handle comes to rest in the vertically lowered position, the depth of the shelf (
Even if the handle diameter is slightly larger than the width of the front surface, adjacent handles do not touch each other, which has the advantage that it can be installed even on shelves with a particularly small depth.

Hereinafter, an embodiment of the present invention shown in the drawings will be described.

Although only one row of shelves is shown in FIG. 1.2, a plurality of shelves are generally arranged.

As shown in FIG. 1.2, a single shelf 1 is placed on a floor 2 so as to be movable in the left-right direction on guide rails 3 provided at intervals in a direction orthogonal to the storage surface of the shelf.

The shelf unit 1 is moved left and right according to the direction of rotation by manually operating a handle 5 provided on the front side of the side plate 4.

The rotation of the handle 5 rotates the upper sprocket 7 coaxially provided on the rotating shaft 6 via a clutch mechanism (described later), and connects the roller chains 8 and 9 and the sprocket 1.
It is transmitted to the drive wheels 12 through 0a, 10b, 11, etc.

Such roller chains 8 and 9, sprockets) 1
Since the transmission mechanisms such as 0a, 10b and 11 are conventionally well known, detailed explanations and drawings will be omitted.

13 is a driven wheel. The shelf unit 1 is provided with a latch mechanism as shown in FIG. 3.4.

On the rotating shaft 6 shown in FIG. 3, the above-mentioned upper sprocket (not shown) and gear-shaped rotating ring 14 are supported by a bearing (not shown) provided coaxially and integrally.

Further, a freely rotatable nozzle 5 is coaxially supported at the tip of the rotary shaft 6 protruding toward the side plate 4.

That is, the handle shaft 15 extending to the tip of the rotating shaft 6 has a hollow member 17 fixed to the arm 16 of the handle 5.
is inserted with some play and is held by a snap ring 18.

/”% The handle 5 has a crank-shaped shape and is a hollow member 17.
A handle 19 is provided at the tip of the arm 16 that extends at right angles to.

Also, a handle shaft 1 is located near the hollow member 17 of the arm 16.
One end of the support pin 20 is fixed at a distance smaller than the radius of the gear-like rotating ring 14 from the axis of the shaft 5.

The support pin 20 passes through the side plate 4, and the upper end of a pendulum hook 21 is pivotally held at the tip thereof, and has a pawl 22 that engages with the teeth 23 of the gear-like rotating wheel 14 when the handle 5 is rotated. ing.

The handle 5 and the pendulum hook 21 always have a descending habit due to their own weight, and unless a rotational force is applied to the handle 5, they remain stationary in a vertically lowered position.

24 is a decorative cover for the handle 5 and a handle shaft 15
It is attached to the arm 16 with the center at the center.

5 to 8 are diagrams showing the principle of the clutch mechanism of this embodiment, and the operation will be explained below.

Note that the left-right direction and left-right rotation used below refer to the movement direction and rotation direction as seen from the inside of the shelf.

First, the operation for moving the shelf unit 1 to the right when the handle 5 is in the vertically lowered position as shown in FIG. 1.2 will be described.

When the handle 5 is left in the vertically lowered position, the pendulum hook 21 is vertically lowered in the same manner as the handle 5, and the pawl 22 and the teeth 23 of the gear-like rotating wheel 14 are not engaged.

(See Fig. 4) If the handle 5 is rotated clockwise to move the shelf unit 1 to the right, the support pin 20 fixed to the arm 16 will move from the position shown in Fig. 4 to the upper left as shown in Fig. 5. It's going to be displaced.

Since the pendulum hook 21 is pivotally held by the support pin 20, it rises while maintaining its vertical descending behavior, and the pawl 22 enters and engages between the teeth 23 of the gear-like rotary ring 14.

If rotational motion is continuously applied to the nozzle 5 in this state, the gear-shaped rotating wheel 14 is pulled by the pendulum hook 21 and rotates.

Therefore, the upper sprocket 7, which is integrally coaxial with the gear-shaped rotating wheel 14, rotates clockwise, and the roller chains 8 and 9 sprockets)
10a, 10b and 11 to drive wheel 1
2 rotates clockwise, and the shelf 1 moves to the right.

Further, when the handle 5 is rotated to the left in order to move the shelf unit 1 to the left, the pawl 22 of the pendulum hook 21 engages between the teeth 23 of the gear-shaped rotating wheel 14 as described above, and the state shown in FIG. Thus, the gear-like rotating wheel 14 rotates to the left to move the shelf unit 1 to the left.

Figure 7.8 shows the orientation of the handle 5: upper right, upper right,
This figure shows the engagement state between the teeth 23 of the gear-like rotating wheel 14 and the pendulum hook 21 when it reaches the upper left corner. The pawl 22 of the pendulum hook 21 can completely transmit the rotational force without coming off.

Next, the process of returning the disordered handle 5 to the vertically lowered position will be described.

When the moved shelf itself stops at an arbitrary or predetermined position, the handle 5 also stops in various directions.

When the rotated handle 5 stops at the left position shown in FIG. 5, the pendulum hook 21 is located below the rear of the arm 16, so as the handle 5 rotates to the left to descend under its own weight, the pendulum hook 21 also descends at the same time. However, the handle 5 is released from between the teeth 23 of the gear-like rotary ring 14 and released, so that the handle 5 can return to the vertically lowered position.

Also, when the handle 5 rotates to the left and stops at the right position shown in FIG. 6, the pendulum hook 21 separates from between the teeth 23 of the gear-shaped rotating wheel 14 due to the descending clockwise rotation of the handle 5, as described above, and the vertically lowered position. can be returned to.

In other words, when the handle 5 stops in the downward position as shown in FIG. 5 or 6, simply returning the handle 5 to the vertical position according to its descending behavior causes the pawl 22 of the pendulum hook to move to the tooth of the gear-type rotating wheel. 23 is released, resulting in the state shown in FIG.

When the handle 5 passes through the top in each direction of rotation and stops when it reaches the position shown in Figure 7.8, the direction in which the handle 5 descends matches the direction in which it is rotated, causing the handle 5 to continue rotating. A force is being applied, and the pendulum hook 21 is not disengaged from the teeth 23 of the gear-like rotating ring 14.

In this case, if the handle 5 is rotated slightly in the opposite direction, the position of the support pin 20 of the arm 16 will be displaced to the upper right in FIG.
The first pawl 22 is removed from between the teeth 23 of the gear-like rotary wheel 14, and the pendulum hook 21 descends while rotating to the lower left and is located below the rear of the arm 16.

Therefore, the state is similar to that shown in FIG. 5, and as the handle 5 descends, the pendulum hook 21 also descends at the same time and can be returned to the vertically lowered position.

When the handle returns to the vertically lowered position, the gear-like rotating wheel 14 and the pendulum hook 21 remain disengaged, so even if this shelf unit 1 is pushed and moved by another shelf unit, this shelf unit will not move. Of course, the handle 5 of No. 1 does not rotate.

As described above, the clutch mechanism of the present invention uncouples the handle from the transmission mechanism and returns the handle to the vertically lowered position by providing a simple reversal motion to change the direction of the handle, which becomes disordered when a single shelf is moved. In addition to being able to return to its original position, rotational motion from the wheel side is not transmitted to the handle once it is at rest in the vertically lowered position, so there is no unnecessary rotational force that would cause the handle of a single shelf that is pushed and moved to spin idly. does not require.

In addition, the rotation operation of the handle always starts from the vertically lowered position, which provides operational convenience, and the orientation of the handle remains constant after use, resulting in an aesthetically insulating effect.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a single shelf of a handle-type manual shelf equipped with an embodiment of the present invention, Fig. 2 is a front view of the shelf, Fig. 3 is a sectional view showing the clutch mechanism, and Fig. 4 is a shelf. Figure 5 shows a side view of the gear-shaped rotating ring and the pendulum hook when they are disengaged from each other, as seen from the inside. FIG. 6 is a diagram showing the engagement between the gear-like rotating ring and the pendulum hook when the arm is located at the lower right side during left rotation; FIG.
The figure shows the engagement of the gear-like rotating ring and the pendulum hook when the arm is located at the upper right when rotating to the right. Figure 8 shows the gear-like rotating ring and the pendulum when the arm is located at the upper left when rotating to the left. It is a figure which shows the attachment of a hook. 1: Single shelf, 3 guide rules, 5: Handle, 12° 13: Wheel, 14: Gear-shaped wheel, 16: Arm, 20:
Support pin, 21: Pendulum hook, 23. teeth.

Claims (1)

[Scope of utility model registration request] A handle-type manual shelf that has wheels that roll on a traveling guide member and that is moved by rotating a crank-type handle, comprising: a gear-shaped rotating ring that rotates in conjunction with at least one of the wheels; and a gear-shaped rotating ring that rotates in conjunction with at least one of the wheels. said crank-type handle rotatably provided coaxially with said crank-type handle; one end of said crank-type handle is pivotally supported on said crank-type handle at a distance smaller than the radius of said gear-shaped rotating ring from said axis; a pendulum type hook adapted to engage between the gear teeth, the pendulum type hook lowering together with the crank type handle to the vertically lowered position when the crank type handle is in the vertically lowered position. When the crank-shaped handle is rotated, it engages between the teeth of the gear-shaped rotating ring and continues to rotate the crank-shaped handle. The handle-type movable shelf is moved by holding the handle in a fixed position, and after the movement, the crank-type handle is disengaged by reversing the crank-type handle from any handle stop position, and then the crank-type handle is lowered vertically. A handle-type manual shelf clutch device characterized by being able to be returned to the position.