JPH0851842A - Raising up device for stem and culm - Google Patents

Abstract

PURPOSE:To enable the simple regulation of expansion and contraction of an extended guide rail relatively to a guide rail. CONSTITUTION:This raising up device for stems and culms is obtained by installing an extended guide rail 20 for regulating the raised up height at the terminal end of guide rails 10 so as to enable the free regulation of the expansion or contraction, respectively distributing and installing plural notches 21... and an engaging member 23 elastically engaged therewith on the side of the extended guide rail 20 and a fixed frame 11, and constituting the engaging member 23 so as to enable the disengagement thereof by artificial operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stem culm raising device equipped with an extension guide rail for adjusting the raising height at the terminal end of a guide rail for guiding the raising claw to stand up and down.

[0002]

2. Description of the Related Art Heretofore, as a stem culm raising device of this type, an extension guide rail can be freely extended and contracted in a plurality of steps relative to the guide rail by changing the position of a bolt stop (actually opened). (Sho 59-187939)
There is also a structure in which the bolt hole is changed to a long hole so that the position can be easily changed and the expansion and contraction can be adjusted steplessly.

[0003]

However, in such an expansion / contraction structure, a tool for adjusting the raising height is required, and also in the adjustment, the operation of loosening the bolt and the expansion / contraction of the extension guide rail are required. It is necessary to perform an operation of changing the bolt and an operation of re-tightening the bolt again, which is troublesome and troublesome. Further, the bolt long hole type has an advantage that it can be adjusted steplessly, but there is a concern that the extended guide rail is displaced from the guide rail due to a loose lock state of the bolt fixing portion.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a stem culm raising device which is easy to adjust the raising height and which is surely locked. In point.

[0005]

To achieve the above object, the present invention is characterized in that the extension guide rail for raising and adjusting the height of the extension claw is adjustable at the end of the guide rail for guiding the raising claw upright. In the stem culm raising device provided, a plurality of notches for expanding and contracting the extension guide rail in a plurality of stages and a locking member elastically engaged with the notch are separately provided on the extension guide rail and the fixed frame side, respectively. The stop member is configured to be disengageable by manual operation.

[0006]

The lock state of the extension guide rail with respect to the guide rail can be released with one touch by manually releasing the engagement member that elastically engages with the notch. It is possible to extend and retract the extension guide rail with respect to the rail,
Further, by engaging the locking member with a desired notch from this state by a manual operation, it is possible to lock the extension guide rail with respect to the guide rail with one touch and change it to a desired raised height. .

[0007]

Therefore, as compared with the conventional bolt type and bolt long hole type, the need for tools and the troublesomeness of the adjusting operation can be eliminated, and the adjusting operation can be performed easily, and the guide rail can be used. On the other hand, there is an effect that the extended guide rail is securely locked.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a combine will be described below with reference to the drawings. FIG. 6 shows the front side of the self-leaving combine, and in the front of this combine, a weeding tool 1 for weeding the plant origin of the planted grain culm, and a cultivated grain culm are raised. Stalk culm raising device 2, reaping unit 3 for slicing the raised root of the grain culm, grain culm conveying device 5 for conveying the stalks to the rear threshing unit 4, and the like A is equipped to be able to move up and down.

As shown in FIGS. 2 to 5, in the stem and stem raising device 2, a chain 7 having a plurality of locking claws 6 is wound around an upper drive sprocket 8 and a lower driven sprocket 9. It is configured such that it is rotated and raised to surround them with a case C.

The locking claw 6 is slidably brought into contact with the guide rail 10 and an extension guide rail 20 which will be described later, and the leading end of the locking claw 6 is raised. The chain 7 is pivotally connected to the chain 7 so that it can be swung up and down in a posture in which the stem culm is locked and protrudes from the case C.

The raising case C has a drive sprocket 8
A fixed frame 11 that rotatably supports the driven sprocket 9 and a front cover 1 that is detachable from the fixed frame 11.
And 2. Specifically, as shown in FIGS. 4 and 5, a horizontal locking rod 13, is provided on the upper side of the fixed frame 11.
A pin 15 that is integrally extended from the support shaft 14 of the driven sprocket 9 on the lower side is provided. Corresponding to these, a U-shaped locking hook 16 in a side view on the upper side of the front cover 12, and a pin on the lower side. A handle 1 in which a receiving hole 17 is provided and a square-shaped key body 18A can be pivotally operated on the front cover 12 side.
8B is provided, and a keyhole 19 having a shape corresponding to this is formed on the fixed frame 11 side.

Therefore, on the upper side, the horizontal locking rod 13
After engaging the lock hook 16 with the locking hook 16, by inserting the pin 15 into the pin receiving hole 17 and the key body 18A into the key hole 19 and rotating the handle 18B by 90 ° on the lower side, 18A is elastically deformed, and the key body 18
The front cover 12 is attached to and fixed to the fixed frame 11 so that the three parts of A, the fixed frame 11, and the front cover 12 are tightened together. On the contrary, handle 18B
The front cover 12 can be removed from the fixed frame 11 by returning to the original state and releasing the above-mentioned engagement.

As shown in FIG. 3, the fixed frame 11 is constructed by arranging a pair of plate frames 11A and 11A so as to face each other, and a pair of guide rails 10 and 10 is provided between the plates to chain the locking claws 6. The pivotal support portion 6A is integrally provided in a state of sliding contact. Further, the extended guide rails 2 are located at the ends of the guide rails 10 and 10 in the fixed frame 11.
0 is stored vertically adjustable.

That is, as shown in FIG. 1, on the extension guide rail 20 side, notches 21 are formed at a plurality of places (four places in the embodiment) at equal intervals in the vertical direction, while the fixed frame 11 side is provided. A locking member 23 that is elastically engaged with the notch 21 of the extension guide rail 20 via a tension coil spring 22 is provided in the extension guide rail 20.
By appropriately selecting the notches 21 with different positions on the side, the extension guide rail 20 can be expanded and contracted relative to the guide rail 10.

Specifically, the locking member 23 is composed of a U-shaped bending rod, and the piece 23A is rotatably supported by a supporting member 24 integrally attached to the fixed frame 11A. The other piece 23B is connected to the coil spring 22, and the relay piece 23C is configured as a finger grip.

Therefore, by pulling out the other piece 23B from the notch 21 against the elastic biasing force of the coil spring 22, the relay piece 23C can be easily disengaged from each other.
From the above, by selecting the notch 21 on the upper side of the extension guide rail 20 as shown in FIG.
A raising height corresponding to a short grain culm can be obtained, and conversely, by selecting the lower notch 21 of the extension guide rail 20, a raising height corresponding to a long grain culm can be obtained, In addition, as shown in FIG. 2B, by selecting the intermediate notch 21, it is possible to obtain the raised height corresponding to the intermediate culm, so that it corresponds to the length of the culm. It is possible to adjust and change to the raised height. In the figure, 24 is a receiving groove of the locking member 23.

[Other Embodiment] In the above embodiment, the notch 21 is provided on the extension guide rail 20 side and the locking member 23 is provided on the fixed frame 11 side, but the present invention is not limited to this, and FIG. As shown in FIG. 7, even if the plurality of notches 21 ... Are formed on the fixed frame 11 side and the locking member 23 and the receiving groove 24 thereof are provided on the extension guide rail 20 side, Just operate with one touch,
The extension guide rail 20 can be expanded and contracted.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1A is a perspective view of an essential part showing a state of engagement between a fixed frame and an extension guide rail. FIG. 1B is a perspective view of an essential part showing a state in which engagement between a fixed frame and an extension guide rail is released.

[Fig. 2] (a) A front view showing the stalk-raising device with the extension guide rail contracted, with a part of the stalk-raising device cut away. Front view

FIG. 3 is a cross-sectional view of a main part of a stem-culm raising device.

FIG. 4 is an exploded perspective view showing a relationship between a fixed frame of the raising case and a front cover.

FIG. 5 is a vertical cross-sectional view showing the relationship between the fixed frame of the raising case and the front cover.

FIG. 6 is a side view showing the front part of the combine.

FIG. 7 is a perspective view of an essential part showing another embodiment.

[Explanation of symbols]

 6 Raising claw 10 Guide rail 20 Extension guide rail 21 Notch 23 Locking member

Claims (1)

[Claims] 1. A stem-and-culm raising device equipped with an extension guide rail (20) for adjusting the raising height at the terminal end of a guide rail (10) for guiding the raising claw (6) to stand up and down, so as to be adjustable. A plurality of notches (21) for expanding and contracting the extension guide rail (20) in a plurality of steps and a locking member (23) elastically engaged with the notches (21) are provided on the extension guide rail (20) and the fixed frame (11) side, respectively. A stem culm raising device which is equipped with a distribution device and in which the engaging member (23) can be disengaged by manual operation.