JP4484475B2 - Back-loaded power sprayer - Google Patents

Description

  The present invention relates to a backpack-type power sprayer in which a tank is mounted above a backpack frame on which a moving jet, an engine, and the like are placed.

  In this type of backpack type power sprayer, considering the exhaust heat and exhaust gas of the engine, the engine is placed away from the user's back, that is, in the second half position of the backpack frame, and the dynamic spray is placed on the user's back. It is located near, that is, in the first half of the backpack.

  On the other hand, when performing dynamic injection or engine maintenance, it is necessary to lubricate, inspect and replace the pump seal and valve parts. In the engine, inspection and replacement are required at the connecting part of the output shaft and the clutch part. In that case, the bolts and nuts are attached and detached between the front side of the engine and the moving jet. The tool is inserted from both sides.

  As shown in FIG. 3, a conventional backpack type power sprayer of this type is provided with a support (wall) 4 that also supports the backrest cushion 3 in addition to the tank 2 on the front side of the backpack frame 1. It has a structure. A dynamic spray 5 and an engine 6 are mounted on the backpack frame 1.

  The problem to be solved is that in FIG. 3, the front side of the moving jet 5 is blocked by the support (wall) 4 of the backpack frame 1, so that maintenance cannot be performed by inserting a tool from the front side of the moving jet 5. Since the maintenance is performed in a state where the moving jet 5 and the engine 6 are lowered from the backpack frame 1, it is necessary to lower the moving jet 5 and the engine 6 from the backpack frame 1 at the time of maintenance. It takes a lot of effort.

In the present invention, the left and right struts of the backpack frame are disposed in the second half position where the engine is located rather than the first half position where the dynamic spray is present, and the front frame for attaching the backrest cushion and the like is detachably attached to the front surface of the backpack frame , The back frame is formed by continuously opening from both sides of the front half position where the moving jets are present to the front .

  In the present invention, if the front frame is removed from the back frame, the front side of the moving jet is opened, so that the tool can freely enter from the front side of the moving jet, and the back of the back frame is on the side of the engine. Both side surfaces between the engine and the engine are opened so that the tool can freely enter from both sides, so that there is an effect that all the maintenance work can be performed with the moving spray and the engine mounted on the back frame.

  The left and right struts of the backpack are placed in the second half of the engine rather than the front half where the moving jets are located, and the front frame for attaching the back cushion etc. is detachably attached to the front of the backpack so that it can be moved from the back frame. Maintenance has been achieved without lowering the jet and engine.

  FIG. 1 is an overall side view showing an embodiment of the apparatus of the present invention, and FIG. 2 is a view of FIG. 1 as viewed from the front with the front frame removed. In FIG. The same reference numerals are given and the description is omitted.

  In the figure, 7 is a back frame comprising an upper frame 7a, a lower frame 7b, and left and right columns 7c positioned behind the entire frame, and 8 is a front frame that is detachably locked to the upper frame 7a and opens and closes in the front-rear direction. The back cushion 3 is attached.

  The state shown in FIG. 1, that is, the state in which the front frame 8 is mounted on the front surface of the backpack frame 7 is a state when the machine is used, and the back cushion 3 is in a normal position in this state of use. So, you can use it as it is.

  Next, when performing maintenance of the moving spray 5 or the engine 6, the front frame 8 is opened forward as shown by the dotted line in FIG. By doing so, the front of the moving jet 5 is opened, and a tool is put into the front of the moving jet 5 from the front, and the left and right columns 7 c are opened on both sides between the moving jet 5 and the engine 6. Since the tools can be inserted from both sides, the tools can be used from both the front and the side with respect to the moving spray 5 and the engine 6 in the backpack frame 7, and maintenance can be performed using hands. Therefore, maintenance work can be performed without lowering the moving spray 5 and the engine 6 from the backpack frame 7, and the workability is improved in all work surfaces.

  The positions of the left and right struts 7 c in the back frame 7 are better as they are located on the side of the engine 6, but it is sufficient that they are at least rear positions away from the sides of the moving jets 5. Further, the upper frame 7 a of the backpack frame 7 may have a shape (configuration) for simultaneously molding the lower part of the tank 2.

  The present invention can be widely applied to all types of backpack type power sprayers.

It is a whole side view which shows one Example of this invention apparatus. FIG. 2 is a front view of FIG. 1 with a front frame removed. It is a whole side view which shows a conventional one.

Explanation of symbols

2: Tank 3: Back cushion 5: Dynamic spray 6: Engine 7: Back frame 7a: Upper frame 7b: Lower frame 7c: Post 8: Front frame

Claims (1)

In the case where a tank is mounted above a backpack frame on which a moving jet, an engine, etc. are placed, the left and right struts of the backpack frame are arranged in the second half position where the engine is located rather than the first half position where the moving jet is located, and the backrest Removably attach the front frame for attaching cushions etc. to the front of the backpack frame ,
A backpack type power sprayer characterized in that the backpack frame is formed by continuously opening from both sides of the front half position where the moving spray is present to the front .

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