JPH0645091Y2 - Management machine mission case structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a mission case structure of a management machine in which inputs are made from the upper part and both axles are mounted on the lower part.

[Prior Art] Conventionally, in a control machine configured by axially mounting both axles on both lower sides of a mission case that is input from the upper side, is the mission case entirely made of die casting and is divided into two?
Alternatively, the whole structure is a sheet metal press type and is divided into two parts.

[Problems to be solved by the invention] If the whole is made of die-cast as described above, a protective cover must be attached to reinforce the lower outer periphery, and if the whole is a sheet metal press type, Since the upper structure that hangs the shaft becomes complicated, it is relatively difficult to manufacture and the weight is heavy. In particular, there are problems in terms of the overall shape and manufacturing and strength.

[Means for Solving Problems] The present invention solves such problems, and has a sufficient strength without a protective cover, easy to manufacture, and a compact structure. Therefore, the upper case on the upper part of the mission case is formed into two parts made of die casting, the lower case on the lower part of the mission case is formed into a sheet metal press type, and the upper part of the lower case is connected to the lower part of the upper case via bolts. It is composed.

[Operation] Therefore, the upper part of the mission case, which has a complicated structure, is made of die-cast material that is lightweight and easy to manufacture, and the upper part of the sheet metal press type lower case is attached to the lower part of the upper case assembled by assembling each shaft. When tightened with bolts, it can be assembled and has a compact structure.

Example Next, an example shown in the drawings will be described. Fig. 2 shows a side view of the control unit. The axle (14) or axle rotor is installed on both axles (1a) (1b) that are mounted on both sides of the lower part of the mission case (A), and the mission case (A ) The engine (E) is mounted above the front frame (5) extending to the front of (1) and is transmitted from the engine (E) through the inside of the belt cover (6) to the upper part of the mission case (A). It is installed and the handle (7) is extended from above the mission case (A) to have the same structure as the conventional structure.

The upper part of the mission case (A) is composed of two upper parts (a1) and (a2) made of die-casting which are divided into two parts, and the lower part is a lower case (8a) and (8b) made of sheet metal pressed together. a3), input transmission shaft (2) and transmission transmission shafts (3a), each of which has a gear and a clutch.
Both axle cases (a1) and (a2) that house (3b) and (3c) etc. are attached to the holes (9) around them by bolts, respectively, and both axles (1a) and (1b) are attached to the bottom. A connecting plate (10) is fixed by welding (W) to the outer periphery of the upper end of the lower case (a3) that is mounted on the shaft and has a side clutch and a sprocket chain installed inside. , A large number of holes (12) through which the bolts (4) fitted into the washers (11) can be inserted, and a large number of screw holes (13) are formed on the lower end surfaces of both upper cases (a1) (a2). Form and configure.

Therefore, both parts are installed inside and both upper cases (a1) (a
2) are attached together, and the connecting plate (10) at the upper end of the lower case (a3) that houses each part is attached to both upper cases (a1) (a
Joined to the lower end surface of 2) and connected each bolt (4) to the connecting plate (10).
The transmission case (A) can be assembled by fitting it into the hole (12) of the vehicle and screwing it into the screw hole (13) of the case side, and tightening it, but the axle (14) mounted on the axle (1a) (1b) is mounted. ) Or the lower case (a
3) will be formed into long and short.

[Effect of the Invention] As described above, according to the present invention, the upper part of the mission case (A) is a two-piece die-cast upper case (a1) (a2) and the lower part is a sheet metal press type lower case (a3).
Since the upper part of the lower case (a3) is connected to the lower part of the upper case (a1) (a2) by the bolt (4), the wide and complicated upper part can be made lighter and well formed, and the lower part The side has a structure that does not require a protective cover and has sufficient strength. Moreover, it can be easily manufactured and assembled and can be made into a compact structure as a whole. Have.

[Brief description of drawings]

FIG. 1 is a rear view in which a part of a mission case according to an embodiment of the present invention is omitted, FIG. 2 is a side view of a management machine, FIG. 3 is a side view of a mission case, and FIG. FIG. 5 is a rear view of the lower side of the mission case, and FIG. 5 is an exploded view of a part of FIG. (A) ... Mission case, (1a) (1b) ... Axle (2) ... Input transmission shaft, (3a) ... Transmission transmission shaft (a1) (a2) ... Upper case, (a3) ... Lower case (4) ... bolt

Claims (1)

[Scope of utility model registration request] 1. A mission case (A) input from above
In the control machine configured by mounting both axles (1a) and (1b) on both lower sides of the vehicle, the input transmission shaft (2) and each transmission transmission shaft (3a)
The upper case (a1) (a2) on the upper part of the mission case (A) is mounted on the lower part of the mission case (A) on which the axles (1a) (1b) are mounted. A mission case characterized in that the case (a3) is formed into a sheet metal press shape, and the upper case (a1) (a2) is connected to the lower part of the lower case (a3) through the bolts (4). Construction.