JP2002112639A - Rotation transmitting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotation transmitting device in which one can move both the hands for grasping a knob and for rotating a handle in a good posture so that the force is brought into full play, and which surely transmits the torque to a winding shaft through the smooth rotary operation of the handle, and vertically moves a casing supported with the knob, that is, smoothly expands and closes the sheet. SOLUTION: A rotation transmitting mechanism 4 whose one side 2b is connected to a winding shaft 8, and other side 2a to a handle, and in which the winding shaft 8 can be rotated by the handle 3, but its independent rotation is inhibited, is placed in a casing 1. The casing 1 has a pipe-passing hole 5 for passing a supporting pipe 7, and the casing can move vertically along the supporting pipe 7. The casing 1 also has a knob 6 by which the casing 1 can be held by a single hand. The knob 6 and the handle shaft 3a are placed at such positions that the pipe-passing hole 5 for passing the supporting pipe 7 is located between them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is, for example, used in ventilation ventilation in which a cover sheet b of a greenhouse is wound around a sheet winding shaft c and rolled up or down to open and close a ventilation opening g as shown in FIG. In other words, the rotation of the handle j causes the casing grasped by the handle to follow (up and down) while transmitting the rotation to the reel c, thereby winding up the sheet by the reel. The present invention relates to a rotation transmission device that performs unwinding.

[0002]

2. Description of the Related Art A conventional rotation transmission device used for ventilation ventilation of a greenhouse is, as exemplified in FIG. 6, a rotation transmission mechanism (not shown) installed inside a casing s.
The winding shaft c is connected to one side of the rotating shaft, and the handle j is connected to the other side.
Is connected. At a position close to one end of the casing s, a pipe through hole t for vertically passing the support pipe d is provided. A handle m for gripping the casing s with one hand and moving the casing up and down is also provided. With respect to the support pipe d that has penetrated the pipe through hole t of the casing s, the handle m has a handle shaft k and a winding shaft c ( That is, it is installed in a direction orthogonal to the rotation axis).

Therefore, in order to open and close the covering sheet b, the operator grasps the handle m with one hand (left hand) and rotates the handle j with the other hand (right hand) while rotating the winding shaft c. The operation is performed by moving the casing s grasped by the handle m to follow up or down of the sheet b.

[0004]

As described above, the sheet b
When the opening and closing operation is performed by the rotation transmission device, a handle m which the operator grasps with one hand, and a handle j which is rotated by the other hand are arranged to one side with respect to the position of the support pipe d. Since the axis k and the handle m are arranged at right angles to each other, the operator has a cramped posture in which both hands approach and cross each other according to the rotation of the handle j. Difficult to use and difficult to use.

[0005] In addition, both the force of the hand gripping the handle m and the force of turning the handle j act on one side of the support pipe d with respect to the casing s moving up and down along the support pipe d. The resultant force acts unstablely as a bending moment that causes the casing s to jiggle (or twist) in a vertical direction with respect to the support pipe d. Therefore, the casing s is a so-called "prying phenomenon" with respect to the support pipe d.
This makes it difficult to move the casing s up and down smoothly, requiring skill in opening and closing the sheet, which is a cumbersome operation.

In addition, the opening and closing of the sheet b is started from the ground position at the foot of the greenhouse a and is performed to a height at which the worker stretches out (about 2 m above the ground). You have to change from a crouched low position to a high position that stretches out. Meanwhile, Toride m
Although the movement of the casing s grasped by and the rotation of the handle j must be performed simultaneously and simultaneously, the cramped operation of grasping the handle m with one hand and turning the handle j with the other hand as described above, Since it is difficult to sufficiently exert the power of the hand, the burden imposed on the operator is large and it is difficult to use.

An object of the present invention is to dispose the handle and the handle shaft at positions on both sides sandwiching the support pipe, and more preferably, to make the direction of the handle and the rotation shaft (handle shaft) substantially parallel. As a special arrangement, both the hand that grasps the handle and the hand that rotates the handle can move freely with good posture and can fully exert the force, and the rotating force of the handle smoothly transmits the rotating force to the reel, and It is an object of the present invention to provide a rotation transmission device that can smoothly lift and lower a casing gripped via a handle and can smoothly open and close a seat.

[0008]

According to a first aspect of the present invention, there is provided a rotation transmission device according to the first aspect of the present invention.
Inside the casing 1, one side 2 a of the rotating shaft 2 is connected to the winding shaft 8, and the other side 2 b is connected to the handle 3, and the winding shaft 8 can be rotated through the rotating shaft 2 by the handle 3. The casing 1 is provided with a rotation transmission mechanism 4 configured to stop the independent rotation of the winding shaft 8. The casing 1 is provided with a pipe through hole through which a support pipe 7 is passed and which enables vertical movement along the support pipe 7. 5 and the casing 1
In the rotation transmitting device provided with a handle 6 for gripping the handle with one hand, the positions of the handle 6 and the rotating shaft 3a are divided into positions on both sides sandwiching a pipe through hole 5 through which a support pipe 7 passes in the casing 1. It is characterized by being arranged.

According to a second aspect of the present invention, in the rotation transmission device according to the first aspect, the handle 6 is provided on the casing 1 in a direction substantially parallel to the rotating shaft 2 and the winding shaft 8 and as a cantilevered rod. It is characterized by being installed.

[0010]

1 to 4 show an embodiment of a rotation transmitting device according to the first and second aspects of the present invention.

In this rotation transmitting device, as shown in FIG. 5, a greenhouse covering sheet b is wound around a sheet winding shaft c.
It is suitably implemented for ventilation ventilation that opens and closes by winding up and down.

[0012] Inside the casing 1 of the rotation transmitting device,
The rotation transmission mechanism 4 is installed as schematically shown in FIG. A sheet winding shaft 8 is connected to one side 2a of the rotation shaft 2 of the rotation transmission mechanism 4 by a joint 2c. Handle 3 on the other side 2b
Is connected (FIGS. 1 and 2). The lower end of the cover sheet b of the greenhouse is wound around the sheet winding shaft 8 (see FIG. 5).

The rotation shaft 2 of the rotation transmission mechanism 4 and the sheet winding shaft 8
The handle shaft 3a is arranged in a straight line (FIG. 2). The rotation transmission mechanism 4 can rotate the sheet winding shaft 8 only by rotating the handle 3, as is well known in the art, while completely stopping the rotation of the sheet winding shaft 8 alone. (See, for example, Japanese Patent No. 2847618). A support pipe 7 described below is required as a reaction force means for completely stopping the rotation of the sheet winding shaft 8.

The casing 1 is provided with a pipe through hole 5 at a substantially central portion thereof so as to penetrate vertically (see FIG. 4). The support pipe 7 is passed through the pipe through hole 5,
The rotation transmitting mechanism 4 applies a reaction force when stopping the rotation of the sheet winding shaft 8. Winding the sheet by the sheet winding shaft 8,
A plurality of guide rollers 9 are arranged along the pipe through-hole 5 so that the casing 1 smoothly moves up and down along the support pipe 7 following the unwinding (FIG. 4). .

The rotating shaft 2 of the rotation transmitting mechanism 4 installed in the casing 1 as described above, and the handle 3 having the shaft 3a connected to the rotating shaft 2, have a pipe through hole 5 through which the support pipe 7 passes. It is arranged on one side sandwiched, and the handle 6 on the opposite side
Is arranged. Moreover, the handle 6 is arranged so as to protrude substantially in parallel with the rotating shaft 2 and the sheet winding shaft 8 (FIG. 1, FIG.
(Fig. 3). That is, the handle 6 is separated from the position of the handle 3 at a position opposite to the center of the pipe through hole 5 and is provided as a rod-shaped body having one end supported at one end.

As described above, the handle 6 is disposed on one side of the casing 1 in a position substantially parallel to the handle shaft 3a, the sheet winding shaft 8, and the rotating shaft 2, so that the operator can handle the handle 6 with the handle 6. The left hand to grasp and the right hand to turn the handle 3 can be freely operated freely by extending and contracting both arms in a parallel state. In addition, since the forces of both hands are distributed on both sides of the support pipe 7 and act in a well-balanced manner, at least the operation of prying the casing 1 in the vertical direction is not performed.

Therefore, when opening and closing the seat, the left hand that grasps the handle 6 and the right hand that rotates the handle 3 can be moved in a well-balanced manner, and each can exert sufficient force. The opening and closing operation of the seat from the ground position to the upper position of the greenhouse can be smoothly performed in a comfortable posture.

[0018]

According to the first and second aspects of the present invention, there is provided a rotation transmitting device in which a handle and a handle shaft are separated from each other at positions on both sides sandwiching a support pipe, and
The operation of turning the handle can be performed easily and comfortably, and the operability is good and easy to use. In addition, since the left and right hands can exert sufficient force, the casing grasped by the handle can be lifted and lowered smoothly, and the work of opening and closing the cover sheet of the greenhouse can be performed smoothly and efficiently.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a use state of a rotation transmission device according to the present invention.

FIG. 2 is a partially omitted plan view of the rotation transmitting device.

FIG. 3 is a perspective view showing a use state of the rotation transmission device at an angle different from that in FIG. 1;

FIG. 4 is a sectional view showing the inside of the rotation transmitting device.

FIG. 5 is a perspective view showing ventilation means of a greenhouse.

FIG. 6 is a perspective view showing a conventional rotation transmission device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Casing 2 Rotation axis 3 Handle 3a Handle axis 4 Rotation transmission mechanism 5 Pipe through hole 6 Handle 7 Support pipe 8 Roll axis

[Procedure amendment]

[Submission date] October 19, 2000 (2000.10.
19)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Figure 3

[Correction method] Change

[Correction contents]

FIG. 3

Claims (2)

[Claims] An inside of a casing has one side of a rotating shaft connected to a winding shaft and the other side connected to a handle. The handle allows the winding shaft to rotate through the rotating shaft. A rotation transmission mechanism is configured to stop the rotation of the pipe, and the casing is provided with a pipe through hole through which a support pipe is passed and which can move up and down along the support pipe, and furthermore, the casing is held with one hand. In a rotation transmission device in which a handle to be grasped is installed, the position of the handle and the rotation shaft are separated and arranged at positions on both sides sandwiching a pipe through hole for passing a support pipe in the casing. A rotation transmission device. 2. The rotation transmitting device according to claim 1, wherein the handle is installed in the casing in a direction substantially parallel to the rotating shaft and the winding shaft and as a cantilevered rod.