JPH0442983Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to an outer wire holding structure.

[Prior art]

Conventionally, the retaining structure of the outer wire was, for example,
As shown in Japanese Patent No. 58-70718, there is a structure in which a notch groove is formed in a receiving member for the outer wire, and the end of the outer wire is inserted into the notch groove to maintain the position.

In addition, in the structure in which the end of the outer wire is inserted into the notch groove as described above, a nut is usually screwed onto the outer wire and the coaxial core, and tightening of the nut prevents the receiving member and the outer wire from coming off. Alternatively, the position holding structure is configured so that the end of the outer wire and the receiving member are prevented from coming off by the frictional holding force between them.

[Problem that the invention attempts to solve]

However, as mentioned above, with a structure that prevents the outer wire from coming off by tightening a nut, it takes time and effort to attach and remove the outer wire, and with a structure that uses frictional retention force to prevent the outer wire from coming off, for example, the friction force increases over a long period of use. There is still room for improvement as it may drop and retention becomes uncertain.

Therefore, as shown in FIG.
Forming a notch 19b in the receiving member 19 of b,
Further, an engagement piece 21 is formed on the outer wire 15b,
The notch portion 19b and the engagement piece 21 are configured to be removable, and a spring material 22 made of wire is provided to prevent the engagement piece 21 from falling off in the engaged state. The outer wire 15 holds the engagement piece 21 by elastic engagement in a direction perpendicular to the wire rod and stabilizes the posture of the spring material 22 itself.
It is conceivable to configure the position holding structure b to be detachable, but in this configuration, the direction perpendicular to the wire is the disengagement direction, that is, the direction of maximum elastic deformation is the disengagement direction, so the wire cannot be operated If an external force is applied, such as when the outer wire is held in place, the holding position of the outer wire may become unstable.

An object of the present invention is to provide a holding structure for an outer wire that requires less time and effort to attach and detach, and that can be held reliably for a long period of time, through a rational configuration.

[Means for solving problems]

The features of the present invention include an engaging piece formed on the outer wire, a notch into which the engaging piece engages, a posture for holding the engaging piece while it is engaged in the notch, and a position for releasing the holding. In the holding position, the linear part that presses the engaging piece in a direction substantially along the direction in which the notch is formed, and the protruding part that engages in the notch are made of spring material. It is formed in the material, and its functions and effects are as follows.

[Effect]

When the above feature is configured as shown in FIGS. 1 and 2, for example, when the spring material 22 is set in the pressing and holding position, the linear portion 22a of the spring material 22 follows the direction in which the engagement piece 21 is disengaged. Since it is set in the posture, it is strongly prevented from coming off, and the spring material 2
The posture of the spring member 22 is stabilized by the second protrusion 22b engaging the notch 19b.

In other words, since the direction in which the elastic deformation of the spring material 22 is least is set as the direction in which the engagement piece 21 is disengaged, the position of the engagement piece 21 is stabilized, and the spring material 22 is not engaged with the engagement piece 21. , notch 19b
Therefore, even if an external force that changes the relative positional relationship between the spring material 22 and the engagement piece 21 is applied, the posture of the spring material 22 is difficult to change.

[Effect of idea]

Therefore, although the outer wire is composed of relatively simple elements consisting of an engaging piece, a notch, and a spring material, it takes less time to attach and detach, and the outer wire is strongly held for a long time. A holding structure was obtained.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

As shown in FIG. 5, a seedling planting device B is connected to the rear end of the traveling machine body 1 via a link mechanism 3 that moves up and down by the action of a hydraulic cylinder 2, thereby configuring a riding rice transplanter.

As shown in the figure, the seedling planting device B includes a transmission case 4 to which power is transmitted from the traveling machine body 1, a seedling stand 5 on which the pine-shaped seedlings W are placed, and a seedling planting device B that plants the seedlings from the lower edge of the pine-shaped seedlings W. It consists of a plurality of planting arms 6 which cut out each plant one by one and plant them in the field, and a plurality of soil leveling floats 7.

Further, the traveling body 1 is equipped with a driver's seat 8, and on the side of the driver's seat 8, an elevating lever 9 for raising and lowering the seedling planting device B and a sensing load setting lever 10 are provided.

Incidentally, an automatic control system for raising and lowering the seedling planting apparatus B is provided so that the seedling planting apparatus B is maintained at a substantially set level with respect to the field scene, and the sensing load setting lever 10 is controlled by the automatic control system. This is an operating tool for setting control sensitivity, and the automatic control system will be explained below.

As shown in FIG. 4, one of the soil leveling floats 7 is used as a sensor, and the rear part of the soil leveling float 7 is oriented horizontally toward the seedling planting device side.
A link 11 is provided at the front of the float 7 so as to be pivotable therearound, and the link 11 swings in accordance with the vertical deviation of the float 7.

Further, an arm 14 is provided on the operating shaft 13 that directly operates the spool 12s of the hydraulic valve 12 for the hydraulic cylinder 2, and by the swinging of the link 11 when the earth leveling float 7 is deflected downward,
The link 11 and the arm 14 are interlocked and connected via the inner wire 15a of the sensor wire 15 so that the spool 12a is operated in the direction of lowering the seedling planting device B. Furthermore, the link 11 is connected to the soil leveling float 7 in a downward direction. A sensing spring 16 is provided that applies a load in the direction of deflection, and the arm 14 is provided with a balance spring 17 that offsets the pulling force of the inner wire 15a.

In this automatic control system, the control sensitivity is adjusted by deflecting the outer wire 15b of the sensor wire 15, and the outer wire 15b is configured to be easily attached and detached.

That is, as shown in FIGS. 1 to 3, a pair of left and right brackets 18,
18, the left and right side walls 19a,
A receiving member 19 formed with a shape 19a is pivotally supported via a support shaft 20, and the sensing load setting lever 10 is supported so that the receiving member 19 can be swung.
Furthermore, hook-shaped notches 19b, 19b are formed in the left and right side wall portions 19a, 19a, respectively.

The end portion of the outer wire 15b on the side of the seedling planting device B is held by the seedling planting device B, and the end portion of the outer wire 15b on the side of the traveling machine body 1 has an engaging piece 21 that engages with the notch portions 19b, 19b. 21 is formed, and engagement pieces 21, 21 held at the bottom edges 19c, 19c of the notches 19b, 19b are formed at both ends of the support shaft 20.
A spring member 22 for preventing the screws from coming off is supported and connected.

The spring member 22 is made of a single wire rod, and the support shaft 20 is located on an extension line from the bottom edge 19c in the direction in which the notch 19b is formed, and the engagement piece 21 in the holding state is 21 into the notches 19b, 19b
Straight parts 22a, 22a to press from the direction of release and notches 19b, 1 to maintain the holding state.
Protrusions 22b, 22b that engage with 9b are formed.

As shown in FIG.
The outer wire 15b can be easily removed from the holder.

The sensing load setting lever 10 is biased by a helical spring 24 so as to be held at a predetermined position on the lever guide 23, and when operated in either the "high" or "low" direction shown in FIG. Control sensitivity increases and decreases respectively.

Further, as shown in FIG. 4, a cam body 26 for operating the spool 12s in the upward direction is provided on the cylindrical shaft 25 fitted onto the operating shaft 13, and an end of an arm member 27 provided on the cylindrical shaft 25 is provided. The lifting lever 9 is attached to the part, and by operating the lifting lever 9 in the "U" direction, the seedling planting device B is raised by forcing the spool 12s in the upward direction due to contact with the cam body 26. Furthermore, by operating the lift lever 9 to the "A" position, the seedling planting device B is automatically controlled to move up and down.

[Another example]

In addition to the above-described embodiments, the present invention may also be applied to wires other than sensor wires.

In addition, although numbers and the like are written in the claims section of the utility model registration for convenience of drawings and objects, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of drawings]

The drawings show an embodiment of the outer wire holding structure according to the present invention, and FIG. 1 is a partially cutaway side view of the holding structure, FIG.
The figure is an exploded perspective view of the holding structure, FIG. 4 is a schematic diagram showing the automatic control system, FIG. 5 is an overall side view of the rice transplanter, and FIG. 6 is a side view showing a comparative example of the holding structure. . 15b... Outer wire, 19b... Notch, 21... Engaging piece, 22... Spring material, 22a...
...Straight portion, 22b...Protrusion portion.

Claims (1)

[Scope of utility model registration request] An engagement piece 21 formed on the outer wire 15b;
It consists of a notch 19b into which the engaging piece 21 engages, a spring member 22 that can be switched to a position in which the engaging piece 21 is held in the notched part 19b, and a position in which the holding is released. At the same time, in the holding position, the spring material 22 is formed with a linear portion 22a that presses the engagement piece 21 in a direction substantially along the direction in which the notch 19b is formed, and a protrusion 22b that engages in the notch 19b. A retaining structure for the outer wire.