JPH0596159U - Canopy structure in the backhoe - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is intended to use a canopy in a small turning type backhoe for excavating the ground so that the canopy can be raised and lowered. [Structure] A driver's seat (15) and a control section (5) having an operation lever (18) and the like are provided in front of the seat (15), and a work machine (5) is provided in front of the control section (5). The backhoe with a) and a canopy (19) covering the driver's seat (15).
In (A), put the canopy (19) in the upright state (X),
The canopy (19) can be laid up and down forward, and the canopy (19) covers the upper part of the driver's seat (15) in the upright state, and the canopy (19) is laid down forward. Now, the sunshade part (20) of the canopy (19) can be stored between the working machine (a) and the operating lever (18).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a canopy structure in a backhoe for excavating the ground.

[0002]

[Prior Art]

 Conventionally, some small swing type backhoes have a canopy that covers the control section and the driver's seat, and the canopy is erected in a fixed state by a canopy strut standing on a swivel base or bonnet. Has been done.

In recent years, the canopy has been made to be a retractable type, and for example, when the backhoe is transported by a truck or the like, the canopy can be tilted back and forth or left and right according to height restrictions and the like. There is something I did.

[0004]

[Problems to be solved by the device]

 However, the retractable canopy structure as described above still has the following problems.

That is, when working in a place where there are obstacles or the like above the backhoe, it is convenient if the canopy located at the highest position can be tilted to perform the work, but the structure of the canopy described above is , When the canopy is tilted to the side, the canopy protrudes to the side when tilted backward, and when it is tilted to the rear, the canopy blocks the operator's view of the front when tilted forward. To do.

[0006] Therefore, even if the canopy is tilted to the side or backward, the canopy may stick out, which may damage the canopy during the work. In addition, when tilted forward, the view is blocked and safety is ensured. Because of this, the operator could not work with peace of mind.

As described above, with the above-described retractable canopy structure, there is no problem in transporting the backhoe, but when the canopy is tilted, the structure is extremely unsuitable for moving the machine to perform work. there were.

An object of the present invention is to provide a canopy structure in a backhoe that can solve the above problems.

[0009]

[Means for solving the problem]

 In the present invention, a driver's seat and a control section having an operation lever and the like are provided in front of the driver's seat, a working machine is provided in front of the control section, and a canopy covering the driver's seat is provided. In the backhoe, the canopy can be raised and lowered in a standing state and a forward lying state.In the standing state, the canopy covers the upper part of the driver's seat and the canopy is lying forward. Now, the awning part of the canopy can be stored between the work machine and the operating lever.

Further, the ceiling plate of the shade portion is also characterized by being made of a transparent material.

[0011]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an overall side view of a backhoe having a canopy structure according to the present invention, and FIG. 2 is a rear view showing the canopy structure.

As shown in FIG. 1, in a backhoe A, a swivel base 4 is attached to a central portion of a crawler type traveling device 1 via a swivel bearing 3, and a prime mover 2 and the like are housed on the swivel base 4. Bonnet 6 is provided.

In the swivel base 4, a driver's seat 15 is provided on the left side with respect to the traveling direction of the backhoe A, a control section 5 is provided in front of the seat 15, and above the seat 15. Is provided with a canopy 19 including a canopy column 19a and a sunshade section 20.

A lever stand 16 is projectingly provided on the control section 5, and an operation lever 18 is erected on the lever stand 16. Inside the lever stand 16, the operation lever 18 and a link mechanism (not shown) are provided. A control valve 21 connected in interlock with is installed.

Further, a boom bracket mounting fulcrum 7 is provided on the front part of the swivel base 4, and a boom 11 for supporting the bucket 11 and the arm 10 for excavating work is mounted on the fulcrum 7 for mounting the boom bracket. A boom bracket 8 is attached, a boom 9 is attached to the bracket 8, and an arm 10 and a bucket 11 are connected to the tip end of the boom 9 so as to be able to move up and down, thereby forming a working machine a.

The boom cylinder 12, the arm cylinder 13, and the bucket cylinder 14 for operating the work machine a are connected to the control valve 21 described above via hydraulic pipes, respectively, and the operator operates the operation lever 18 When is operated, the control valve 21 is appropriately opened and closed, and the working machine a can be arbitrarily moved.

In FIG. 1, reference numeral 17 is a step surface of the control section 5, 25 is a stand cover for protecting the lever stand 16, 31 is a blade having an earth removing work and a stabilizer function, and 32 is for raising and lowering the blade 31. Is a connecting pin for connecting the bucket 11 and the bucket operating link 34, and 35 is a gripping rod.

The overall configuration of the backhoe A in this embodiment is as described above, and the configuration of the canopy 19, which is the subject matter of the present invention, will be described in more detail below.

That is, as shown in FIGS. 1 and 2, the canopy 19 in the present embodiment has a gentle curved surface portion on the rear side in the traveling direction and is formed in a substantially dome shape in the installed state. It is composed of a sunshade 20 consisting of a ceiling board 20a and a frame 20b with a cutout 20c in the middle of the side edge, and canopy columns 19a, 19a connected to the side edge of the frame 20b. It is installed so as to cover the upper part of the seat 15.

In the above structure, the gist of the present invention is that the canopy 19 can be raised and lowered freely between the upright state X and the forward laid state Y, and the canopy 19 is in the upright state for the driver's seat. When the canopy 19 is laid down forward while covering the upper part of the canopy 15, the awning part 20 of the canopy 19 can be stored between the working machine a and the operating lever 18, and the awning part 20 of the above-mentioned awning part 20 can be stored. The ceiling plate 20a is formed of a resin having transparency.

That is, the canopy support pillars 19a, 19a forming a part of the canopy 19 are formed in a smooth L-shaped curve, and the canopy support pillars 19a, 19a are provided on the left and right sides of the driver's seat 15. In order to fix the canopy 19 in the upright state X and the fallen state Y, the canopy 19 is pivotally attached to the pivotal support parts 41a, 41a of the canopy support mounts 41, 41 provided by the pivotal support pins 42, 42, and an appropriate fixing means is provided. I have to.

Therefore, the canopy 19 rotates about the point where the canopy support columns 19a, 19a are pivotally supported by the pivotally supporting pins 42, 42 as a pivotal fulcrum, and is in the upright state X and the forward lying state. It will be configured so that it can be undulated and fixed to Y.

Moreover, in the fallen state Y, the shade portion 20 of the canopy 19 is deeply stored between the boom 9 and the operation lever 18 of the working machine a.

At this time, in this embodiment, since the operation lever 18 and the stand cover 25 that covers the lever stand 16 are provided in front of the operation lever 18, the awning unit 20 and the boom 9 and the same stand cover are provided. Will be stored between 25.

Further, since the upper ends of the gripping rods 35 provided on the left and right sides of the lever stand 16 are fitted into the cutout portions 20c provided on the side edges of the frame portion 20b of the shade portion 20, the canopy 19 is Stored and held in place.

Furthermore, since the ceiling plate 20a of the shade portion 20 of the canopy 19 is made of a transparent resin, the forward visibility when the canopy 19 is in the forward lying state Y is further improved, and the front view of the aircraft is improved. You can see the parts.

Further, since the shade portion 20 is formed in a substantially dome shape having a gentle curved surface portion on the rear side, a sufficient space is formed above the operation lever 18 when stored. It is configured so as not to hinder the operation of the lever 18 by the operator.

Therefore, when the canopy 19 is brought to the forward lying state Y, the canopy 19 can be stored in a position where the operator's forward view from the operator can be secured and the operation of the operation lever 18 is not hindered. In addition, since the ceiling plate 20a can be held, and the ceiling plate 20a is formed of a transparent resin, the operator can secure the forward field of view in the same manner as when the canopy 19 is in the standing state X, and can work with peace of mind. it can.

Furthermore, when the canopy 19 is stored, the ceiling plate 20a of the canopy 19 also functions as a front cover, and dust, dirt, dust, and the like generated when the bucket 11 is operated during work. You can protect the operator from the scattering of stones.

Therefore, the canopy 19 performs the function of the normal canopy 19 in the standing state X to protect the head of the operator, and in the prone state Y, the obstacle is removed from above the operator, so that the height is restricted. Allows work in a certain place.

Further, if the transparent resin is a colored resin, it is possible to block direct sunlight in the upright state X, so that the conventional function of the shade portion 20 is not impaired and the visibility of the upper portion of the sunshade portion 20 is increased. It can be secured.

Moreover, even when the user is in the forward lying state Y, since it is still transparent, it is possible to secure a sufficient forward field of view and the operator can work with peace of mind.

Next, as a second embodiment, there is a canopy structure as described below, and the structure thereof will be described.

This is one in which the turning fulcrums of the canopy support columns 59a, 59a are provided only at the rear part of the driver seat 15, that is, as shown in FIG. 3 and FIG. A column mounting base 51 is provided on the rear part of the rear part, and a pivotal support 51a is formed on the mounting base 51.

The canopy columns 59a, 59a are fixed at one end side to the side edges of the frame portion 20a of the shade portion 20 and extend vertically downward, and gently bend toward the pivot portion 51a. is doing.

Then, appropriate resistance materials such as rubber and metal can be fitted to the pivotal fulcrums of the pivotal support 51a, and the canopy support posts 59a and 59a can be held at any desired locations. I am trying.

Further, fixing means can be appropriately provided so that the columns 59a, 59a can be fixed in the upright state and the fallen state.

In this canopy structure as well, the storage position of the canopy 19 is the same as in the previous embodiment, and since the structure of the shade portion 20 is also the same, it is possible to secure the operator's field of view when it is stored and to operate the lever. There is no hindrance.

Further, if the ceiling plate 20a of the shade portion 20 is made of a transparent resin, the forward field of view is further improved, and if it is made of a transparent and colored resin, it is upright. In the state X, direct sunlight can be prevented.

Moreover, since there is only one pivotal point or fixed point, the operation of bringing the canopy 19 to the lying state Y is very easy.

[0042]

[Effect of the device]

 According to the present invention, the canopy can be erected between the upright state and the forward laid state, so that the canopy can be erected during normal work to obtain a sunshade function. When the backhoe is laid down forward, the operator can work even in places with height restrictions, in addition to the merit that the height of the packing can be lowered when the backhoe is transported by a truck or the like. be able to.

Moreover, since the canopy is stored and held at a position where the forward field of view can be secured, the operator can work with peace of mind.

Further, when the canopy is retracted to the front, a sufficient space is formed above the work lever, so that the lever operation is not hindered, and the operator does not have any restrictions. You can do the same work.

In addition, when the canopy is stored, the ceiling plate of the canopy also functions as a front cover, so that dust, dirt, stones, etc. can be removed when operating the bucket during work. The operator can be protected from scattering.

Further, since the ceiling plate of the sunshade section is formed of a transparent material, the visibility when stored in front of the canopy is further improved, and it is possible to visually recognize even just before the fuselage, thereby improving safety and workability. Can be increased.

[Brief description of drawings]

FIG. 1 is an overall side view of a backhoe having a canopy structure according to the present invention.

FIG. 2 is a rear view showing the canopy structure.

FIG. 3 is an overall side view of a backhoe having a canopy structure according to a second embodiment.

FIG. 4 is a rear view showing the canopy structure.

[Explanation of symbols]

 A Backhoe a Work machine X Standing state Y Falling state 5 Control part 15 Driver's seat 18 Operating lever 19 Canopy 20 Awning 20a Ceiling board

Claims (2)

[Scope of utility model registration request] 1. A driver's seat (15) and a control section (5) having an operation lever (18) and the like are provided in front of the seat (15), and work is performed in front of the control section (5). Equipped with machine (a),
In the backhoe (A) that has the canopy (19) that covers the driver's seat (15), place the canopy (19) in the standing state (X) and in the forward lying state.
(Y) and the canopy (19) covers the upper part of the driver's seat (15) in the upright state, and when the canopy (19) is laid down forward, (1
A canopy structure in a backhoe, wherein the awning part (20) of 9) can be stored between the working machine (a) and the operating lever (18). 2. The canopy structure for a backhoe according to claim 1, wherein the ceiling plate (20a) of the sunshade (20) is made of a transparent material.