JPH0476808B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a door lock in a tractor cabin or the like.

The door attached to the tractor cabin is configured to be locked by the engagement of a latch and a striker, but the striker provided on the side of the cabin frame does not catch clothing when going up or down. There were many.

The purpose of this invention is to prevent accidents such as clothing being caught by the locking device exposed at the cabin entrance, and to make it safe and easy to climb up and down the cabin. is attached to the frame so as to surround the striker installation part. The embodiments shown in the drawings will be described below.

Fig. 1 is an external view of a tractor equipped with a door lock structure according to the present invention, Fig. 2 is an external view of the door lock as seen from the interior, Fig. 3 is a sectional view of the door lock, Fig. 4, and Figure 5 is an enlarged front view and side view of the main parts. A cabin 2 of a tractor 1 is provided with doors 4 on both left and right sides. The door 4 is attached to the front frame 5 of the cabin 2 by hinges 7 and 8, and can be opened and closed by rotating inward and outward about the hinges 7 and 8. The door lock part consists of a latch 10 provided at the rear of the door 4 and a striker 13 attached to a corresponding position on the side frame 11 of the cabin 2, and an inside handle 14 for opening and closing the door inside and outside the door 4, and an outside handle 14 for opening and closing the door. A side handle 15 is provided. Further, a hand catcher 16, which is a handle for getting on and off the vehicle, is attached to the frame 11 so as to surround the upper part of the striker 13.

The latch 10 is a square bar-shaped member with a tip 10a cut diagonally, and is attached to a holder 19 fixed to the inner surface of the inner panel 17 of the door 4, and is biased in the protruding direction by a spring. It is exposed to the indoor side through the opening 20 of the inner panel 17. The striker 13 has the latch 10 in its center.
It has an engagement hole 22 that is slightly wider than the width of the distal end thereof, and the distal end portion 23a is provided with a flat plate-shaped projection 23 formed diagonally. When door 4 is further closed from the position shown in FIG. The latch 10 is once pushed into the holder 19 by sliding along each inclined surface, and then inserted into the engagement hole 22 of the projection 23. This locks the door. By rotating the inside handle 14 or the outside handle 15, the latch 10 is drawn into the holder 19 and disengaged from the striker 13, so that the door 4 can be opened.

The hand catcher 16 is formed into a roughly gate-like shape consisting of a grip portion 25 and two right and left columns 26, 26, and the tip end 26a of the column 26 is a mounting portion provided with a screw hole. This hand catcher 1
6 has struts 26, 26 located on both sides of the striker 3, and is fixed to the side frame 11 with a screw 27 inserted into a screw hole in the tip end portion 26a of the strut so as to surround the striker 13. By this,
Since the grip portion 25 serves to cover the striker 13, it is possible to prevent the body or clothing from being accidentally caught on the protrusion 23 when getting on or off the vehicle. Since the height from the ground to the seat of a tractor is higher than that of a passenger car, etc., an auxiliary device such as a hand grip is required for getting on and off the tractor.If a hand catcher 16 as shown in the example is provided, it is convenient for getting up and down. . Note that the hand catcher 16 in the illustrated example is inclined toward the indoor side by an angle θ, and the gap between the hand catcher 16 and the door is large, so when the door 4 is closed, the hand catcher 16
It is possible to effectively prevent an accident in which the hand holding the door gets caught between the door and the hand catcher.

The latch and striker are not limited to the illustrated example, and there are various shapes, but in any case, a hand catcher may be provided to cover the protruding portion of the striker. When the striker is provided on the door side and the latch is provided on the cabin frame side, a hand catcher may be provided so as to surround the latch.

As is clear from the above description, in the present invention, the hand catcher for getting on and off is provided so as to surround the protrusion of the striker, making it convenient for going up and down, and also making it easier to get clothes etc. caught on the striker when going up and down. It has become highly safe.

[Brief explanation of the drawing]

Fig. 1 is an external view of a tractor equipped with a door lock structure according to the present invention, Fig. 2 is an external view of the door lock as seen from the interior, Fig. 3 is a sectional view of the door lock, and Figs. The figures are an enlarged front view and side view of the main parts. 1... Tractor, 2... Cabin, 4... Door, 5... Front frame, 7, 8... Hinge, 10... Latch, 11... Side frame, 1
3...Striker, 14...Inside handle, 15...Outside handle, 16...Hand catcher, 19...Holder, 20...Opening, 22...Engagement hole, 23...Protrusion, 25 ...grip section, 26...post.

Claims (1)

[Claims] 1. A door lock part of a cabin of a tractor or the like that keeps the door in a closed state by engagement of a latch and a striker, characterized in that a hand catcher for getting on and off the vehicle is attached to a frame so as to surround the striker installation part. structure.