JP2907727B2 - Stem stem raising device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stem / pull raising device which is provided at an end of a guide rail for guiding a raising claw upright, and is provided with an extension guide rail for raising and lowering the height so as to be freely adjustable.

[0002]

2. Description of the Related Art Conventionally, this type of stem / culm raising device has a plurality of extension guide rails which can be freely extended and contracted with respect to a guide rail by changing a bolting position (actual opening). (JP-A-59-187939)
In addition, there is a configuration in which a 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 and contraction configuration, a tool for adjusting the raising height is required, and an operation of loosening the bolt and adjusting the extension guide rail in the adjustment are also required. It is necessary to perform an operation of changing and an operation of retightening the bolt again, which is troublesome and troublesome. Further, in the case of the long bolt type, there is an advantage that the adjustment can be performed in a stepless manner, but there is a concern that the locking state of the bolted portion is loosened and the extended guide rail is displaced with respect to the guide rail.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a stem / culm raising apparatus which can easily adjust the height of raising and which can reliably lock. On the point.

[0005]

To achieve the above object, a feature of the present invention is to provide an extension guide rail for adjusting a raised height at the end of a guide rail for guiding an elevating claw to extend and retract. In the equipped stem and stem raising device, a plurality of notches for adjusting the extension guide rail in a plurality of stages and a locking member elastically engaged with the notch are distributed and installed on the extension guide rail and the fixed frame side, respectively. The stop member is configured to be disengageable by a manual operation.

[0006]

The lock of the extended guide rail with respect to the guide rail can be released with one touch by releasing the locking member elastically engaged with the notch by manual operation. 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 the height to a desired raising height. .

[0007]

Therefore, compared with the conventional bolt type or bolt long hole type, the necessity of tools and the trouble of the adjusting operation can be eliminated, the adjusting operation can be performed easily, and the guide rail can be mounted. 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-removing combine. In the front of the combine, a weeding tool 1 for weeding the root of the planted grain culm, and a weeded grain culm is raised. A pre-cutting processing unit including a stalk culm raising device 2, a cutting unit 3 for cutting the root of the raised cereal stem, a cereal culm conveying device 5 for conveying the cut culm to a rear threshing device 4, and the like. A is equipped to be able to move up and down freely.

As shown in FIGS. 2 to 5, the stem and stem raising apparatus 2 winds a chain 7 having a plurality of locking claws 6 over an upper driving sprocket 8 and a lower driven sprocket 9. It is constructed by turning and raising them and surrounding them by a case C.

The locking claw 6 is in a non-operating position of retreating into the raising case C, and is in sliding contact with the guide rail 10 and an extended guide rail 20 which will be described later to raise the tip of the locking claw 6. The stem 7 is pivotally connected to the chain 7 so as to be swingable up and down so as to be in the posture of the stem stem locking action protruding from the case C.

The raising case C includes a driving sprocket 8
Frame 11 which rotatably supports the driven sprocket 9 and the driven sprocket 9, and the front cover 1 which is detachably attached to the fixed frame 11.
And 2. Specifically, as shown in FIGS. 4 and 5, the horizontal locking rod 13 is provided on the upper side of the fixed frame 11.
A pin 15 extending integrally from a support shaft 14 of the driven sprocket 9 is provided on the lower side, and a U-shaped locking hook 16 on the upper side of the front cover 12 and a pin A handle 1 in which a receiving hole 17 is provided, and a rectangular key body 18A can be turned on the front cover 12 side.
8B is provided, and a keyhole 19 having a shape corresponding to this is provided in the fixed frame 11 side.

Therefore, on the upper side, the horizontal locking rod 13
After engaging the hook 15 with the locking hook 16, the pin 15 is inserted into the pin receiving hole 17, the key 18 A is inserted into the keyhole 19, and the handle 18 B is turned 90 ° at the lower side, so that the key is turned. 18A becomes elastically deformed, and the key body 18
A, the front cover 12 is attached and fixed to the fixed frame 11 so that the three members A, the fixed frame 11 and the front cover 12 are fastened together. Conversely, handle 18B
The front cover 12 can be removed from the fixed frame 11 by returning to the original position and releasing the above-mentioned engagement.

As shown in FIG. 3, the fixed frame 11 comprises a pair of plate frames 11A, 11A opposed to each other, and a pair of guide rails 10 The pivot 6A is integrally provided in a state of sliding contact. Further, at the end of the guide rails 10, 10, the extension guide rails 2 are located in the fixed frame 11.
0 is housed so as to be adjustable up and down.

That is, as shown in FIG. 1, notches 21 are formed on the extension guide rail 20 side at a plurality of places (four places in the embodiment) at equal intervals in the vertical direction, and on the other side of the fixed frame 11 side. Is provided with a locking member 23 which is elastically engaged with a notch 21 of the extension guide rail 20 via a tension coil spring 22.
The extension guide rail 20 can be extended and contracted with respect to the guide rail 10 by appropriately selecting the notches 21...

More specifically, the locking member 23 is formed of a U-shaped bent rod, and has a piece 23A rotatably supported by a support 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 formed as a hand grip.

Accordingly, if the other piece 23B is pulled out of the notch 21 against the elastic biasing force of the coil spring 22, the engagement between the two pieces can be easily released.
From the above, by selecting the notch 21 on the upper side of the extension guide rail 20 as shown in FIG.
It is possible to obtain a raised height corresponding to a short grain culm, and conversely, by selecting the notch 21 below the extended guide rail 20, a raised height corresponding to a long grain culm can be obtained, In addition, by selecting the middle notch 21 as shown in FIG. 2 (b), it is possible to obtain a raised height corresponding to the middle cereal culm. It is possible to adjust and change to the raised height. In the drawing, reference numeral 24 denotes a receiving groove of the locking member 23.

[Alternative 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. However, the present invention is not limited to this. , A 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 adjusted to expand and contract.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1A is a perspective view of a main part showing an engagement state between a fixed frame and an extension guide rail. FIG.

FIG. 2 is a front view showing a partially cut-out stem-pull raising device with the extended guide rail contracted. (B) A partially cut-out stem-pull raising device with the extended guide rail extended. Front view

FIG. 3 is a sectional view of a main part of a stem and stem raising apparatus.

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

FIG. 5 is a longitudinal sectional view showing a relationship between a fixing frame of a raising case and a front cover.

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

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

[Explanation of symbols]

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

Claims (1)

(57) [Claims] 1. A stem and stem elevating apparatus, comprising: an elongating guide rail (20) for elevating and elongating the elongating claw (6) at an end of a guide rail (10) for erecting and guiding the elevating claw (6). A plurality of notches (21) for adjusting the extension guide rail (20) in a plurality of stages and a locking member (23) elastically engaged with the notches (21) are respectively provided on the extension guide rail (20) and the fixed frame (11) side. A stem / pull raising device which is equipped with a distributing device and is configured so that the engagement member (23) can be disengaged by manual operation.