JPH0660656U - Backhoe heater mounting structure - Google Patents

Abstract

(57) [Summary] [Purpose] The heater mounting structure has been simplified. [Constitution] The aircraft frame (3) is placed on the traveling frame (1), and the box-shaped seat support frame is placed on the aircraft frame (3).
(6) and the driver's seat (5) are installed in the backhoe, the hydraulic equipment (13A) is installed inside the machine frame (3),
An opening (14) for outside air intake is provided at the front of the hydraulic equipment (13A), and an opening hole (15) communicating with the inside of the seat support frame (6) is provided at the rear position (16) of the hydraulic equipment (13A). ), And a heater unit (17A) for heating is provided inside the seat support frame (6), and the front side (6-1) of the seat support frame (6) is provided with a foot portion of the driver. An opening hole (19) for blowing hot air to the side was provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a heater mounting structure in a backhoe having an excavator.

[0002]

[Prior art]

 Conventionally, there has been a driver's seat installed on the upper part of the backhoe, with a sunshade canopy and a box-shaped cabin provided on the upper part of the driver's seat.

[0003]

[Problems to be solved by the device]

 However, when the upper part of the driver's seat is covered with a box-shaped cabin, a heater for heating can be installed in the box-shaped cabin to efficiently heat the room. However, in the case of the canopy specification, since only the upper part of the driver's seat is covered, there is no heating system installed, and during excavation work in winter, the feet are cold and work is efficient. It was impossible.

[0004]

[Means for Solving the Problems]

 Therefore, in the present invention, in the backhoe in which the machine frame is placed on the traveling frame and the box-shaped seat support frame and the driver's seat are installed on the machine frame, the hydraulic equipment is provided inside the machine frame, An opening for outside air intake is provided in the front part of the hydraulic equipment, an opening hole communicating with the inside of the seat support frame is provided at the rear part of the hydraulic equipment, and a heater unit for heating is provided inside the seat support frame. In addition, on the front side of the seat support frame, a heater mounting structure in the backhoe is provided, which is provided with a hot air blowing opening hole for blowing hot air toward the driver's feet. It is a thing.

[0005]

【Example】

 An embodiment of the present invention will be described in detail with reference to the drawings. In FIG. 1, reference numeral 1 denotes a traveling frame of a backhoe A, which is equipped with traveling crawlers 2 on both left and right sides. Reference numeral 3 denotes a machine body frame which is mounted on the traveling frame 1 so as to be pivotable. An excavator 4 is vertically connected to a front portion of the machine body frame 3. Reference numeral 5 denotes a driver's seat provided in the upper center of the body frame 3. A box-shaped seat support frame 6 supports the driver's seat 5.

Reference numeral 7 is an engine mounted on the rear portion of the body frame 3, and 8 is a hood that covers an upper portion of the engine 7.

Reference numeral 9 denotes a driver unit provided in front of the driver's seat 5, and an operating lever 10 is provided on the upper portion thereof.

Reference numeral 11 denotes a sunshade canopy that covers the upper portion of the driver's seat 5, and reference numeral 12 denotes a support column that supports the canopy 11. The support column 12 is integrally fixed to the upper portion of the hood 8.

Reference numeral 13 denotes a control valve for switching hydraulic pressure provided inside the machine body frame 3, and an opening 14 for taking in outside air is provided at a front portion of the control valve 13. 13A is a hydraulic device including a control valve 13 and the like.

Reference numeral 15 denotes an opening hole provided above the rear position 16 of the control valve 13, which communicates the inside of the machine body frame 3 and the inside of the seat support frame 6.

Reference numeral 17 is a heater unit for heating provided inside the seat support frame 6, and 18 is a blower fan. Numeral 19 is an opening hole for blowing hot air provided on the front side surface 6-1 of the seat support frame 6.

Numeral 20 is an opening hole provided in the rear side surface 6-2 of the seat support frame 6 and communicates with the inside of the Bonnet 8. Reference numeral 21 is a lid that closes the opening 20.

The embodiment of the present invention is configured as described above. Therefore, when excavating work by starting the engine 7, the driver seats on the driver's seat 5 while the driver is seated. To work.

At the same time, when the heater heater unit 17 is turned on to operate the blower fan 18, cool air is sucked through the outside air intake opening 14 provided in the front portion of the machine body frame 3, The same cold air cools the control valve 13. Then, it is guided to the inside of the seat support frame 6 through the opening 15 and is sent forward by the blower fan 18 while being heated by the heater unit 17 for heating. Then, the hot air is blown out from the hot air blowing opening 19 to the side of the foot B of the driver.

As described above, according to the above-described embodiment, in the backhoe in which the box-shaped seat support frame 6 and the driver's seat 5 are installed on the machine body frame 3, the hydraulic equipment is controlled inside the machine body frame 3. A valve 13 is provided, an opening 14 for outside air intake is provided at the front part of the control valve 13, and an opening hole 15 communicating with the inside of the seat support frame 6 is provided at a rear position 16 of the control valve 13 A heater unit 17 for heating is provided inside the support frame 6, and a front side 6-1 of the seat support frame 6 is provided with an opening hole 19 for blowing hot air toward the driver's feet. Therefore, in the outdoor work in winter, it is possible to reliably heat the feet of the driver, so that the driver can work efficiently in good condition.

Further, the control valve for switching the hydraulic pressure can be cooled by taking in the outside air from the front surface of the machine body frame, and thus the temperature rise of the hydraulic fluid can be prevented.

Further, in FIG. 2, the opening hole 20 provided on the rear side surface 6-2 of the seat support frame 6 is opened, and at the same time, the hot air blowing opening hole 19 provided on the front side surface 6-1 of the seat support frame 6 is formed. This is a state in which the lid 19-1 is closed, and the cooling air is guided to the inside of the bonnet 8 through the opening 20, whereby the engine 7 portion is cooled.

Further, FIGS. 3 and 4 show an embodiment in which a backhoe is equipped with a cooling device, and 30 in the figures is an air conditioning unit provided below a driver seat 31. Then, the cooling and heating unit 30 is connected to the side of the lever stand 32 provided on the left and right in the front part of the body frame via the air duct 33. 34 is a discharge port provided in the lever stand 32, and the discharge port 34 is rotatable in the front-back direction. Reference numeral 35 is an operating lever, and 36 is a front cover that covers the front portion of the lever stand 32.

Therefore, in the above embodiment, the hot and cold air is blown out from the discharge port 34 of the lever stand 32 and directly hits the driver, so that the cooling and heating can be efficiently performed.

[0020] In addition to the cabin specifications, air conditioning can be performed even when using a canopy. Further, when the cabin is used, the windshield can be prevented from being fogged by rotating the discharge port 34 in the forward direction to position the discharge port 34 in the forward direction.

5 and 6 show another embodiment in which the air conditioner is installed in the backhoe, and 40 in the figures is an air conditioner unit provided below the driver's seat 41. Further, the cooling and heating unit 40 is connected to the front cover 42 side provided in the front part of the body frame via a ventilation duct 43.

Reference numeral 44 denotes a discharge port provided on both left and right sides of the front cover 42, and the discharge port 44 is rotatable in the front-rear direction.

Reference numeral 45 denotes an armrest, and an operating lever 46 is arranged at the front part of the armrest 45.

Therefore, in the above embodiment, the hot and cold air is blown out from the air outlet 44 of the front cover 42 and directly hits the driver, so that the effect of cooling and heating is efficient. In addition to using the cabin, it is possible to heat and cool even when using a canopy.

Further, FIG. 7 shows a hood fixing device for a backhoe, and 50 is a body frame for a backhoe, on which an engine 51 is mounted. Reference numeral 52 is a bonnet that covers the upper portion of the engine 51. Inside the lower portion of the bonnet 52, a catcher plate 53 whose lower end is bent rearward is attached. 54 is a fitting hole provided in the catcher plate 53, 55 is an attachment seat of the catcher plate 53, and 56 is a catcher hook provided on the body frame 50 side, and a hook 57 is formed rearward.

The catcher plate 53 and the catcher hook 56 constitute a bonnet fixing device 58.

FIG. 8 shows a conventional bonnet fixing device, in which 60 is a catcher plate, which is fixed to the body frame 61 side. Reference numeral 62 is a hook-shaped catcher hook provided inside the lower end of the hood 64 that covers the engine 63.

Therefore, in the embodiment shown in FIG. 6, the catcher plate 53 that constitutes the bonnet fixing device 58 is attached to the bonnet 52 side, and the catcher hook 56 is provided on the body frame 50 side. Since the protruding height of the hook 56 is reduced, the engine part can be easily inspected and repaired.

Further, when the bonnet 52 is in the open state, it is possible to prevent the injury due to the catcher plate.

Further, since the bonnet fixing device operates reliably, workability is improved.

[0031]

[Effect of device]

 According to the present invention, in a backhoe in which a box-shaped seat support frame and a driver's seat are installed on the machine frame, a hydraulic device is provided inside the machine frame, and an opening for outside air intake is provided at the front of the machine. In addition to the above parts, an opening hole communicating with the inside of the seat support frame is provided at the rear position of the hydraulic equipment, a heating heater unit is provided inside the seat support frame, and a front side surface of the seat support frame is provided. Since the hot air blowing openings are provided to blow hot air toward the driver's feet, the driver's feet can be reliably heated during outdoor work in winter, so the driver Work can be done efficiently in good condition.

Further, the outside air can be taken in from the front surface of the machine body frame to cool the hydraulic equipment, and therefore, the temperature rise of the hydraulic fluid can be prevented.

[Brief description of drawings]

FIG. 1 is a sectional side view showing a main part of a heater mounting structure in a backhoe according to the present invention.

FIG. 2 is a cross-sectional side view showing a state in which an air passage for cooling air is changed in the backhoe.

FIG. 3 is a schematic side view showing a state in which an air conditioner is mounted on the backhoe.

FIG. 4 is a schematic plan view of the same.

FIG. 5 is a schematic side view showing a state in which an air conditioner is mounted on the backhoe.

FIG. 6 is a schematic plan view of the same.

FIG. 7 is a schematic side view showing a bonnet fixing device in a backhoe.

FIG. 8 is a schematic side view showing the conventional type.

[Explanation of symbols]

 1 Traveling frame 3 Airframe frame 5 Driver's seat 6 Seat support frame 6-1 Front side of seat support frame 13A Hydraulic equipment 14 Opening for outside air intake 16 Rear position of control valve 17A Heating unit for heating 19 Opening hole for hot air blowing

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[Procedure amendment]

[Submission date] April 4, 1994

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 5]

[Figure 6]

[Figure 7]

[Figure 8]

Claims (1)

[Scope of utility model registration request] 1. A body frame (3) on a traveling frame (1)
In the backhoe with the box-shaped seat support frame (6) and the driver's seat (5) installed on the aircraft frame (3), the hydraulic equipment (13A) is installed inside the aircraft frame (3). An opening (14) for outside air intake is provided in the front part of the hydraulic equipment (13A), and an opening hole communicating with the inside of the seat support frame (6) is provided in the rear position (16) of the hydraulic equipment (13A). (15) is provided, and a heater unit (17A) for heating is provided inside the seat support frame (6), and the front side surface (6-1) of the seat support frame (6) is provided with a driver's A heater mounting structure in a back hoe, characterized in that an opening hole (19) for blowing hot air is provided to the foot side.