JP2021188344A - Work machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a duct seal from being unintentionally detached from a partition structure during assembly or due to vibration or the like.
SOLUTION: The working machine includes a partition structure (40) for partitioning a first space and a second space, and a distribution member arranged through the partition structure (40), and has a partition structure. The body (40) has a arranging hole portion through which the arranging member is passed, and further includes a sealing member covering the periphery of the arranging member in the arranging hole portion, and the sealing member is provided on an outer peripheral end surface. It has a groove, and the groove is fitted into the edge portion of the arrangement hole portion to be held by the partition structure, and is fixed to the partition structure by a locking member.
[Selection diagram] FIG. 5

Description

The present invention relates to a working machine such as a backhoe, for example.

Conventionally, a working machine disclosed in Patent Document 1 is known. The working machine disclosed in Patent Document 1 has a prime mover and a cooler. A shroud is provided between the cooler and the motor. Above the shroud, a partition structure is provided that separates the motor chamber for accommodating the motor and the space on the side where the cooler is arranged. Further, an air cleaner is provided in the space on the side where the cooler is arranged.

The air cleaner and the prime mover are connected by an intake duct, and a hole for a duct for passing the intake duct is formed in the partition structure. This hole is formed by a notch provided in the partition structure. The circumference of the intake duct is covered with a duct seal while being passed through the notch. The duct seal is supported by the partition structure. Specifically, a groove for fitting is formed on the outer peripheral end surface of the duct seal, and the edge portion of the notch portion is fitted into the groove to be held.

Japanese Unexamined Patent Publication No. 2020-2722

However, in the working machine disclosed in Patent Document 1, the duct seal is only fitted with a groove for fitting the outer peripheral end surface thereof at the edge portion of the notch portion. Therefore, when the intake duct is assembled (connected) to the air cleaner, the duct seal may come off from the partition structure due to the movement of the intake duct. Further, since the intake duct is connected to the prime mover, the vibration of the prime mover is transmitted when the work machine is in operation. This vibration may cause the duct seal to come off the partition structure.

One aspect of the present invention has been made in view of the above problems, and an object of the present invention is to realize a working machine capable of preventing the seal member from being unintentionally detached from the partition structure during assembly, vibration, or the like. ..

In order to solve the above-mentioned problems, the working machine according to one aspect of the present invention includes a partition structure that partitions the first space and the second space, and a distribution member that is arranged through the partition structure. And, the partition structure has a arrangement hole portion through which the arrangement member is passed, and further includes a seal member that covers the periphery of the arrangement member in the arrangement hole portion, and the seal member. Has a groove on the outer peripheral end surface, and the groove is fitted into the edge portion of the arrangement hole portion to be held by the partition structure, and is fixed to the partition structure by a locking member. There is.

According to the above configuration, the seal member is held at the edge of the arrangement hole portion and is fixed to the partition structure by the locking member. As a result, even if the measure member hits the seal member when the measure member is assembled (when connected), it is possible to prevent the seal member from coming off the partition structure. In addition, it is possible to prevent the seal member from coming off the partition structure due to the vibration transmitted to the arrangement member when the work machine is in operation.

In the working machine according to one aspect of the present invention, the locking member may be a resin clip, and the partition structure and the sealing member may have a mounting hole through which the resin clip is inserted.

In the above configuration, since the resin clip is used as the locking member, the sealing member can be partitioned without using a tool simply by aligning the sealing member and the mounting holes formed in the partition structure and inserting the resin clip. Can be fixed to. Moreover, the resin clip can be easily removed and maintained.

In the working machine according to one aspect of the present invention, the sealing member has an extending portion that abuts only on one surface of the partition structure while being held by the edge portion of the arrangement hole portion. The mounting hole may be formed in the extension portion.

In the above configuration, since the extension portion that contacts only one surface of the partition structure is provided and the attachment hole is formed in the extension portion, the thickness of the portion that fixes the seal member to the partition structure can be reduced. .. As a result, the amount of resin material used as a raw material for the sealing member can be reduced, and the length required for the resin clip can be shortened, so that the cost can be reduced.

In the working machine according to one aspect of the present invention, the partition structure is opened to form the arrangement hole portion and to insert the arrangement member from the outer peripheral direction of the arrangement hole portion. It has a main plate having a notch, and a sub-plate attached to the main plate and closing the opening of the notch with the arrangement member inserted into the arrangement hole. The seal member is held by the edge portion of the sub-plate and is held by the edge portion of the notch portion of the main plate, and the arrangement member is sandwiched between the first seal member. The locking member includes a first locking member for fixing the first sealing member to the main plate, and a second locking member for fixing the second sealing member to the sub-plate. It can also be configured to include.

According to the above configuration, since the arrangement member can be inserted into the partition structure from the outer peripheral direction of the arrangement hole portion, the arrangement member can be easily passed through the arrangement hole portion. Further, since the seal member is also divided into a first seal member and a second seal member and supported separately for the main plate and the sub plate, the hole for arrangement can be easily attached.

In the working machine according to one aspect of the present invention, the partition structure is opened to form the arrangement hole portion and to insert the arrangement member from the outer peripheral direction of the arrangement hole portion. It has a main plate having a notch, and a sub-plate attached to the main plate and closing the opening of the notch with the arrangement member inserted into the arrangement hole. The seal member is held by the edge portion of the sub-plate and is held by the edge portion of the notch portion of the main plate, and the arrangement member is sandwiched between the first seal member. The locking member includes a first locking member for fixing the first sealing member to the main plate, and a second locking member for fixing the second sealing member to the sub-plate. And, the main plate and the sub-plate may be configured so as not to overlap at the position where the mounting hole is formed in the sub-plate.

According to the above configuration, since the arrangement member can be inserted into the partition structure from the outer peripheral direction of the arrangement hole portion, the arrangement member can be easily passed through the arrangement hole portion. Further, since the seal member is also divided into a first seal member and a second seal member and supported separately for the main plate and the sub plate, the hole for arrangement can be easily attached.

Moreover, the main plate and the sub-plate do not overlap at the positions where the mounting holes are formed in the sub-plate. Therefore, it is not necessary to provide a clip hole in the main plate, processing becomes easy, and the number of holes through which the resin clip, which is the second locking member, is inserted is reduced, so that workability is improved. Further, since the resin clip which is the first locking member and the resin clip which is the second forming member both have a configuration in which one plate (main plate, sub-plate) is inserted, the same length can be used. It can be used and the number of parts can be reduced.

In the working machine according to one aspect of the present invention, a notch is formed in the seal portion of the seal member that comes into contact with the periphery of the arrangement member from the inner peripheral side of the seal portion toward the outer peripheral side of the seal portion. It can also be.

According to the above configuration, since a notch is formed in the seal portion of the seal member that comes into contact with the periphery of the arrangement member, the arrangement member is installed with a relatively large inclination with respect to the arrangement hole portion. Even so, the seal portion can be brought into contact with the periphery of the arrangement member.

In the working machine according to one aspect of the present invention, the first space is a prime mover room for accommodating a prime mover, and the second space is a space outside the prime mover room and in which a cooler is arranged. A shroud provided between the motor and the partition structure may be configured to partition the motor chamber from the outside of the motor chamber above the shroud.

According to the above configuration, even if the arrangement member hits the seal member when the arrangement member is assembled (when connected), it is possible to prevent the seal member from coming off the partition structure. In addition, it is possible to prevent the seal member from coming off the partition structure due to the vibration from the prime mover transmitted to the arrangement member when the work machine is in operation.

The working machine according to one aspect of the present invention may be provided with an air cleaner provided in the second space, and the measure member may be configured to be an intake duct connecting the air cleaner and the prime mover.

According to the above configuration, even if the intake duct hits the seal member when the intake duct is assembled (connected) to the air cleaner, it is possible to prevent the seal member from coming off the partition structure. In addition, it is possible to prevent the seal member from coming off the partition structure due to vibration from the prime mover transmitted to the intake duct when the work machine is in operation.

According to one aspect of the present invention, it is possible to prevent the seal member from being unintentionally detached from the partition structure during assembly or due to vibration or the like.

It is a schematic side view which shows the whole structure of the work machine which concerns on this embodiment. It is the schematic plan view which omitted the work apparatus of the work machine shown in FIG. FIG. 1 is an external view showing the machine body of the work machine shown in FIG. 1, in a state where the cabin and the driving responsibility are removed. FIG. 3 is a perspective view showing a rear portion of a side cover and a main part inside a bonnet in the airframe shown in FIG. It is a perspective view of the partition structure arranged in the main part of FIG. FIG. 5 is a perspective view of a main plate 1 and a first sub-plate constituting the partition structure shown in FIG. It is a perspective view of the 1st seal member and the 2nd seal member attached to the partition structure shown in FIG. FIG. 5 is an enlarged view of a main part showing a state in which a first seal member and a second seal member are attached to a duct hole portion of the partition structure shown in FIG. It is explanatory drawing of the resin clip which fixes the 1st seal member and the 2nd seal member to the duct hole part of the partition structure shown in FIG.

[Embodiment 1]
Hereinafter, an embodiment of the present invention will be described with reference to the drawings as appropriate.

(1. Overall configuration of work machine 1)
FIG. 1 is a schematic side view showing the overall configuration of the working machine 1 according to the present embodiment. FIG. 2 is a schematic plan view omitting the working device of the working machine 1. In the present embodiment, a backhoe, which is a turning work machine, is exemplified as the work machine 1. FIG. 3 is an external view of the airframe 2 with the cabin 5 and the driving responsibility removed.

As shown in FIGS. 1 and 2, the working machine 1 includes a machine body (swivel table) 2, a traveling device 3, and a working device 4. The cabin 5 is mounted on the aircraft 2. The cabin 5 is mounted on the left side and the front side of the airframe 2. A driver's seat (seat) 6 on which an operator (driver) is seated is provided in the cabin 5. The driver's seat 6 is surrounded by the cabin 5. A canopy may be used instead of the cabin 5.

In the present embodiment, the front side of the operator seated in the driver's seat 6 of the work machine 1 (direction of arrow A1 in FIGS. 1 and 2) is forward, and the rear side of the operator (direction of arrow A2 in FIGS. 1 and 2) is rearward. The left side of the operator (front side of FIG. 1, direction of arrow B1 in FIG. 2) will be described as the left side, and the right side of the operator (back side of FIG. 1, direction of arrow B2 in FIG. 2) will be described as the right side. Further, the horizontal direction, which is a direction orthogonal to the front-rear direction K1, will be described as the machine width direction K2 (see FIG. 2).

As shown in FIG. 1, the traveling device 3 has a traveling frame 9 and a traveling mechanism 10. The traveling mechanism 10 is composed of a crawler-type traveling mechanism driven by a hydraulic motor. In the present embodiment, the traveling device 3 is a crawler type traveling device. The traveling mechanism 10 is provided on the left side and the right side of the traveling frame 9. A dozer device 7 is attached to the front portion of the traveling device 3. The dozer device 7 can be raised and lowered by a hydraulic cylinder. The machine body 2 is supported on a traveling frame 9 via a swivel bearing 8 so as to be rotatable (turnable to the left and right) around the vertical axis. A weight 25 is provided at the rear of the machine body 2.

The working device 4 is provided at the front portion of the machine body 2, and has a boom 15, an arm 16, and a bucket (working tool) 17. The base of the boom 15 is pivotally attached to the swing bracket 14 around a horizontal axis (an axis extending in the body width direction K2) so as to be rotatable (up and down swingable). The swing bracket 14 is rotatably supported around a vertical axis (axis extending in the vertical direction) by a support bracket 18 provided on the front portion of the machine body 2. The arm 16 is pivotally attached to the tip end side of the boom 15 so as to be rotatable around the center of the horizontal axis (swinging back and forth or up and down). The bucket 17 is provided on the tip end side of the arm 16 so that it can be squeezed and dumped. The work machine 1 can be equipped with another work tool (hydraulic attachment) that can be driven by a hydraulic actuator in place of or in addition to the bucket 17. Examples of other working tools include hydraulic breakers, hydraulic crushers, angle blooms, earth augers, pallet forks, sweepers, mowers, snow blowers and the like.

The swing bracket 14 swings around the center of the vertical axis due to expansion and contraction of the hydraulic cylinder. The boom 15 swings due to expansion and contraction of the boom cylinder C3. The arm 16 swings due to expansion and contraction of the arm cylinder C4. The bucket 17 operates in a squeeze operation and a dump operation by expanding and contracting the bucket cylinder (work tool cylinder) C5. The boom cylinder C3, the arm cylinder C4, and the bucket cylinder C5 are composed of hydraulic cylinders (hydraulic actuators).

As shown in FIG. 2, the prime mover E1 is mounted on the rear part of the machine body 2. The prime mover E1 is a diesel engine. The prime mover E1 may be a gasoline engine, an LPG engine, or an electric motor, or may be a hybrid type having an engine and an electric motor. The prime mover E1 is located on the rear side of the cabin 5.

A hydraulic pump P1 and an exhaust gas purifying device D1 are provided on the left side of the prime mover E1. The hydraulic pump P1 is driven by the power of the prime mover E1. The hydraulic pump P1 discharges hydraulic oil (pressure oil) that drives a hydraulic actuator such as a hydraulic motor or a hydraulic cylinder mounted on the working machine 1. Further, the hydraulic pump P1 discharges the pilot pressure for operating the hydraulic valve and the hydraulic pressure for the signal. Further, the hydraulic pump P1 is composed of, for example, a plurality of pumps. The exhaust gas purification device D1 is a device that purifies the exhaust gas discharged from the prime mover E1, and is, for example, a DPF (Diesel particulate filter).

A cooling fan F1 and a compressor G1 are provided on the right side of the prime mover E1. The cooling fan F1 and the compressor G1 are driven by the power of the prime mover E1. The cooling fan F1 is a suction type fan that sucks air (outside air) from the right side of the machine body 2 and flows it to the prime mover E1 and the exhaust gas purifier D1 side, and cools the prime mover E1 and the exhaust gas purifier D1 and the like. The arrow K3 direction in FIG. 2 indicates the flow direction of the cooling air by the cooling fan F1. The compressor G1 is a device that constitutes a part of the air conditioner equipped in the work machine 1, and compresses the refrigerant (air conditioner gas) into a semi-liquid form.

A radiator (first cooler) R1 and an oil cooler (second cooler) O1 are arranged on the right side of the cooling fan F1. The radiator R1 is a cooler (heat exchanger) that cools the coolant of the prime mover E1. The oil cooler O1 is a cooler that cools the hydraulic oil returning to the hydraulic oil tank T2. The radiator R1 and the oil cooler O1 are cooled by the cooling air sucked by the cooling fan F1.

On the right side of the radiator R1, a condenser G3 (third cooler) and a receiver (cooling system device) G2, which are cooling system devices of the air conditioner, and a fuel cooler (fourth cooler) N1 are arranged. The condenser G3 is a cooler that cools the semi-liquid refrigerant by the compressor G1 to promote liquefaction. The receiver G2 is a device that separates the refrigerant that could not be liquefied by the capacitor G3 from the liquefied refrigerant and removes water and impurities. The fuel cooler N1 is a cooler that cools the return fuel (return fuel) from the prime mover E1 before returning it to the fuel tank T1. The fuel tank T1 is a tank for storing fuel for the prime mover E1. The fuel tank T1 is mounted on the left front portion of the airframe 2.

The radiator R1, the oil cooler O1, the condenser G3, and the fuel cooler N1 are collectively referred to as a cooler. Further, the radiator R1, the oil cooler O1, the condenser G3, the fuel cooler N1 and the receiver G2 are also referred to as a cooling system equipment unit U2.

A hydraulic oil tank T2 and a control valve V1 are arranged in front of the cooling system equipment unit U2. A control valve V1 is attached to the front side of the hydraulic oil tank T2. The hydraulic oil tank T2 is a tank for storing the hydraulic oil supplied to the hydraulic pump P1. The control valve V1 is a valve unit in which each control valve for controlling each hydraulic actuator mounted on the working machine 1 is integrated. The battery BT1 is arranged in front of the control valve V1 and the hydraulic oil tank T2. The battery BT1 is a storage battery that supplies electric power to the electrical components mounted on the working machine 1.

A controller 24 is arranged on the left side of the control valve V1. The controller 24 is an electronic control unit called a prime mover ECU (engine ECU) that controls the prime mover E1. For example, the controller 24 controls the rotation speed of the prime mover E1 by controlling the operation of the supply pump, each injector, and the like to adjust the fuel injection amount. The controller 24 is configured by using a microcomputer equipped with a CPU, EEPROM (registered trademark), and the like.

The work machine 1 is a controller that constitutes a control device together with the controller 24, and is a main ECU that controls the overall operation of the work machine 1 (controls an electric device mounted on the work machine 1). It has an electronic control unit (controller) that is called. This main ECU controls, for example, an electromagnetic valve provided in a hydraulic circuit to control the flow rate of hydraulic oil, and controls the exhaust gas purification device D1 to regenerate the filter.

The prime mover E1, the exhaust gas purifying device D1, the hydraulic pump P1, the cooling fan F1, the compressor G1 and the like located at the rear part of the machine body 2 are covered with a bonnet 22 provided at the rear part of the machine body 2. The battery BT1, the control valve V1, the hydraulic oil tank T2, the controller 24, the radiator R1, the oil cooler O1, the receiver G2, and the condenser G3 located on the right side of the machine body 2 are covered by the side cover 21. The right side of the bonnet 22 is connected to the rear of the side cover 21. On the right side surface of the rear portion of the side cover 21, an opening (not shown) for taking in air into the rear portion of the side cover 21 and the inside of the bonnet 22 is formed.

As shown in FIG. 3, the bonnet 22 has a partition member (partition plate) 22A that covers the front (upper front) of the prime mover E1 and a bonnet rear portion 22B that covers the rear of the prime mover E1. A support frame 11 for supporting the bonnet 22 is provided in the bonnet 22. The partition member 22A is a member that separates the prime mover chamber E2 from the arrangement side of the driver's seat 6 (the region on the driver's seat 6 side of the prime mover chamber E2), and is fixed to the support frame 11. The support frame 11 has an upper plate 11A and a plurality of legs (not shown).

The rear portion 22B of the bonnet is supported by the support frame 11 so as to be swingable up and down, and swings up and down to open and close the prime mover chamber E2. Specifically, the rear portion 22B of the bonnet is rotatably supported by the support frame 11 around the axis extending in the width direction K2 of the machine body, and the front portion of the upper portion is rotatably supported by the support frame 11 by swinging upward to open the prime mover chamber E2. The rear side of the upper part is open.

(2. Configuration around the prime mover)
FIG. 4 is a perspective view showing the rear part of the side cover 21 and the main part inside the bonnet 22. In FIG. 4, the prime mover E1 is shown by a virtual line. As shown in FIG. 4, a shroud 30 covering the cooling fan F1 is provided on the left side of the radiator R1 and the oil cooler O1. A partition structure 40 is provided on the upper side of the radiator R1 and the oil cooler O1. The partition structure 40 includes, above the shroud 30, a space (second space) in which a prime mover chamber (first space) E2 and a cooler (radiator R1, oil cooler O1, etc.) outside the prime mover chamber E2 are arranged. It is a structure that partitions. The shroud 30 and the partition structure 40 are side members arranged on the side of the prime mover E1.

The shroud 30 is arranged on the right side of the prime mover E1, and the partition structure 40 is arranged above the shroud 30. The partition structure 40 closes the space surrounded by the upper end of the shroud 30, the upper and middle portions of the right rear leg 11B of the support frame 11, and the partition cover 32. The partition cover 32 is arranged between the partition structure 40 and the shroud 30 and the right front leg (not shown) of the support frame 11.

An air cleaner 33 for purifying the air sent to the prime mover E1 is further provided in the space on the arrangement side of the cooler. The air cleaner 33 is supported by a bracket member 34 attached to the support frame 11. The air cleaner 33 and the prime mover E1 are connected to each other via an intake duct (arrangement member) 31. The intake duct 31 is arranged over the space on the arrangement side of the cooler and the prime mover room E2 through the duct hole portion (arrangement hole portion) 35 through which the intake duct 31 is provided in the partition structure 40. .. A duct seal (seal member) 39 that covers the periphery of the intake duct 31 is attached to the duct hole portion 35. The attachment of the duct seal 39 to the duct hole 35 will be described later.

Although not shown, the harness, which is a measure member, is also arranged over the space between the prime mover room E2 and the space on the arrangement side of the cooler. The partition structure 40 is also provided with a harness hole 36 for passing the harness. The harness hole 36 is located behind the duct hole 35, and the grommet 37 is attached to the harness hole 36.

(3. Structure of partition structure)
FIG. 5 is a perspective view of the partition structure 40. The grommet 37 has been removed in FIG. FIG. 6 is a perspective view of the main plate 41 and the first sub-plate 42 constituting the partition structure 40.

As shown in FIG. 5, the partition structure 40 has a main plate 41, a first sub-plate (sub-plate) 42, a second sub-plate 43, and a third sub-plate 44.

As shown in FIG. 6, the main plate 41 includes a first notch 51 opened downward, a second notch 52 opened downward, and a third notch 53 opened upward. There is.

The first notch 51 is formed in the middle portion (substantially central portion) of the main plate 41 in the front-rear direction K1. The second notch 52 is formed behind the first notch 51 of the main plate 41, and the third notch 53 is formed anterior to the first notch 51 of the main plate 41. Has been done.

The main plate 41 is formed with insertion holes 41a to 41i for a plurality of (nine) bolts. The insertion holes 41a and 41b formed at the rearmost portion of the main plate 41 at intervals in the vertical direction are holes for attaching the main plate 41 to the right rear leg 11B (see FIG. 4) of the support frame 11. As shown in FIG. 5, in this example, the main plate 41 is fixed to the right hind leg 11B by the bolt 57A inserted through the insertion hole 41a.

The insertion holes 41g and 41h formed at intervals in the vertical direction between the first notch 51 and the third notch 53 in the main plate 41 come into contact with the main plate 41 on the left side surface thereof. It is a hole for attaching to the partition cover 32 (see FIG. 4). The same applies to the insertion hole 41i formed in the upper part of the front portion of the main plate 41. As shown in FIG. 5, in this example, the main plate 41 is fixed to the partition cover 32 by the bolts 57B and 57C inserted through the insertion holes 41g and 41i.

The insertion holes 41c and 41d formed at the upper trailing edge of the second notch 52 in the main plate 41 at intervals in the vertical direction are holes for attaching the second sub-plate 43 to the main plate 41. As shown in FIG. 5, the second sub-plate 43 is attached to the second notch 52 in the main plate 41 so as to close the lower portion. The second notch 52 is a notch for forming the harness hole 36.

The second subplate 43 has a notched opening 55 that opens forward. Insertion holes 43a and 43b for bolts are formed behind the notch opening 55 in the second sub-plate 43. The second sub-plate 43 is arranged so that the notch opening 55 corresponds to the upper portion of the second notch 52, and is inserted into the bolts 57D inserted into the insertion holes 43a and 41c and the insertion holes 43b and 41d. It is fixed to the main plate 41 by the bolt 57E.

The grommet 37 (see FIG. 4) is held by the upper, lower and trailing edges, which are the edges of the notched opening 55 of the second subplate 43. Specifically, a groove for fitting is formed on the outer peripheral end surface of the grommet 37 over the entire circumference, and the grommet 37 is held by fitting the edge portion of the notch opening 55 into this groove.

Insertion holes 41e, which are between the first notch 51 and the second notch 52 in the main plate 41 and are formed at the upper trailing edge of the first notch 51 at intervals in the vertical direction. Reference numeral 41f is a hole for attaching the first sub-plate 42 to the main plate 41. As shown in FIG. 5, the first sub-plate 42 is attached to the first notch 51 in the main plate 41 so as to close the lower portion. The first notch 51 is a notch for forming the duct hole 35.

As shown in FIG. 6, the first subplate 42 has a notched opening 59 that opens upward and forward. Insertion holes 42a and 42b for bolts are formed behind the notch opening 59 in the first sub-plate 42. The first sub-plate 42 is arranged so that the notch opening 59 corresponds to the upper portion of the first notch 51, and is inserted into the bolts 57F inserted through the insertion holes 42a and 41e and the insertion holes 42b and 41f. It is fixed to the main plate 41 by the bolt 57G.

The third notch 53 in the main plate 41 is closed by the third sub-plate 44. The third sub-plate 44 is attached to the partition cover 32 (see FIG. 4). Insertion holes 44a and 44b for bolts are formed in the upper portion of the third sub-plate 44 at intervals in the front-rear direction. The third sub-plate 44 is arranged so as to close the third notch 53, and the partition cover 32 is provided with bolts 57H and 57I using an insertion hole on the partition cover 32 side (not shown) and the insertion holes 44a and 44b. It is fixed. The third notch 53 is an opening for attaching a piping bracket for holding a piping member for an air conditioner, and the piping bracket is not attached in this example.

Further, a plurality of sealing materials 58A to 58D are fitted on the lower edge of the partition structure 40. The partition structure 40 abuts on the upper surface of the shroud 30 (see FIG. 4) via the plurality of sealing materials 58A to 58D.

(4. Fixing the duct seal 39 to the partition structure 40)
As shown in FIG. 5, the duct seal 39 that covers the periphery of the intake duct 31 in the duct hole 35 is divided into a first seal member 39A and a second seal member 39B. The first seal member 39A is attached to the upper and leading edges of the second notch 51 and covers the upper and front halves around the intake duct 31 (see FIG. 4). The second seal member 39B is held by a first sub-plate 42 fixed to the main plate 41 and covers the lower and rear halves around the intake duct 31 (see FIG. 4).

FIG. 7 is a perspective view of the first seal member 39A and the second seal member 39B. As shown in FIG. 7, both the first seal member 39A and the second seal member 39B are substantially L-shaped members. The first seal member 39A is open at the rear and the lower side as the inside of a substantially L-shape. The first seal member 39A contacts the support portion 61 for attaching the first seal member 39A to the edge portion of the first notch portion 51 and the periphery of the intake duct 31 formed on the inner peripheral side of the support portion 61. It has a sealing portion 62 to be formed.

The seal portion 62 is formed in a curved shape that matches the peripheral shape of the intake duct 31, and is formed to be thinner than the support portion 61. A notch 62a is formed in the seal portion 62 from the inner peripheral side toward the outer peripheral side of the seal portion 62, and a plurality of notches 62a are formed in the entire area of the seal portion 62 at intervals.

Fitting grooves 63 are formed in the outer peripheral upper end surface 61a and the outer peripheral front end surface 61b corresponding to the upper edge 51a and the leading edge 51b of the first notch 51 in the support portion 61. The fitting groove 63 is formed so that the groove bottom portion abuts on the upper edge 51a and the leading edge 51b of the first notch portion 51 in a state where the first seal member 39A is attached to the edge portion of the first notch portion 51. Has been done.

Further, the support portion 61 has an extension portion 61c extending rearward from the portion corresponding to the upper edge 51a and the leading edge 51b of the first notch portion 51 on the right side surface. The left side surface of the extending portion 61c abuts on the right side surface of the main plate 41 at the upper part of the rear portion of the first notch portion 51. The left side surface of the extending portion 61c is formed flush with the right side groove surface of the fitting groove 63.

A clip hole (mounting hole) 70a for a resin clip, which is a locking member, is formed in the extending portion 61c. The clip hole 70a is a hole for locking and fixing the first sealing member 39A to the main plate 41 using a resin clip 71A (see FIG. 9) described later.

As shown in FIG. 6, in the main plate 41, a clip hole (mounting hole) 54a is formed at a position corresponding to the clip hole 70a in a state where the first seal member 39A is attached to the first notch portion 51. ing. The clip hole 54a is the upper edge of the first notch 51 and is formed in front of the insertion hole 41e.

The second seal member 39B is open at the front and above as the inside of a substantially L-shape. The second seal member 39B is formed on the inner peripheral side of the support portion 64 for attaching the second seal member 39B to the edge portion of the notch opening 59 (see FIG. 6) of the first subplate 42. It also has a seal portion 65 that comes into contact with the periphery of the intake duct 31.

The seal portion 65 is formed in a curved shape that matches the peripheral shape of the intake duct 31, and is formed to be thinner than the support portion 64. A notch 65a is formed in the seal portion 65 from the inner peripheral side toward the outer peripheral side of the seal portion 62, and a plurality of notches 65a are formed in the entire area of the seal portion 65 at intervals.

Fitting grooves 66 are formed in the outer peripheral lower end surface 64a and the outer peripheral rear end surface 64b corresponding to the lower edge 59a and the trailing edge 59b of the notch opening 59 in the support portion 64. The fitting groove 66 is formed so that the groove bottom portion abuts on the lower edge 59a and the trailing edge 59b of the notch opening 59 in a state where the second seal member 39B is attached to the edge portion of the notch opening 59.

Further, the support portion 64 has an extension portion 64c extending rearward from the portion corresponding to the lower edge 59a and the trailing edge 59b of the notch opening 59 on the right side surface. The left side surface of the extension portion 64c abuts on the right side surface of the first subplate 42 at the rear upper portion of the notch opening 59. The left side surface of the extending portion 64c is formed flush with the right side groove surface of the fitting groove 66.

A clip hole (mounting hole) 70b for a resin clip, which is a locking member, is formed in the extending portion 64c. The clip hole 70b is a hole for locking and fixing the second seal member 39B to the first sub-plate 42 by using a resin clip 71B (see FIG. 9) described later.

As shown in FIG. 6, in the first sub-plate 42, a clip hole (mounting hole) 54b is formed at a position corresponding to the clip hole 70b in a state where the second seal member 39B is attached to the notch opening 59. ing. The clip hole 54b is formed behind the notch opening 59.

FIG. 8 is an enlarged view of a main part showing a state in which the first seal member 39A and the second seal member 39B are attached to the duct hole portion 35. FIG. 9 is an explanatory view of a resin clip for fixing the first seal member 39A and the second seal member 39B to the duct hole portion 35.

As shown in FIG. 8, the first seal member 39A is held by fitting the fitting groove 63 into the edge portion of the first notch portion 51. The first seal member 39A is held by the edge of the first notch 51, and is further fixed to the main plate 41 by the resin clips 71A inserted into the clip holes 70a and 54a. In FIG. 9, a brush type resin clip is illustrated, but an anchor type, a rivet type, or the like may be used.

As shown in FIG. 8, the second seal member 39B is held by fitting the fitting groove 66 with the edge portion of the notch opening 59. The second seal member 39B is further fixed to the main plate 41 by the resin clips 71B inserted into the clip holes 70b and 54b while being held by the edge of the notch opening 59.

Further, as shown in FIG. 8, in the first sub-plate 42, the clip hole 54b is formed in a portion that does not overlap with the main plate 41 in a state where the first sub-plate 42 is attached to the first notch 51. ing. In other words, the main plate 41 and the first sub-plate 42 are configured so as not to overlap at the formation position of the clip hole 54b in the first sub-plate 42.

(5. Effect)
As described above, according to the above configuration, the first seal member 39A and the second seal member 39B, which are the duct seals 39, use the resin clips 71A and 71B to form the main plate 41 or the first plate to form the partition structure 40. It is fixed to the sub-plate 42.

As a result, even if the intake duct 31 hits the duct seal 39 when the intake duct 31 is assembled (connected) to the air cleaner 33, the duct seal 39 can be prevented from coming off from the partition structure 40. Further, when the working machine 1 is in operation, it is possible to prevent the duct seal 39 from coming off from the partition structure 40 due to the vibration from the prime mover E1 transmitted to the intake duct 31 connected to the prime mover E1.

Further, as a measure to prevent the duct seal from coming off, it is conceivable to bond the fitting groove of the duct seal and the edge of the notch portion with an adhesive. However, when using an adhesive, it is necessary to appropriately control the coating amount, and it is also necessary to secure a curing time of the adhesive. Therefore, the use of the adhesive complicates the work and reduces the workability. Further, the duct seal is a replacement part that is appropriately replaced in order to maintain good sealing performance. When adhesive is used, it is not possible to replace only the duct seal, and the partition structure must be replaced together with the duct seal. Therefore, maintainability is inferior.

Since the resin clips 71A and 71B are used as the locking members, the fixing can be completed without using a tool and the removal can be easily performed only by aligning the holes and inserting the resin clips 71A and 71B. Therefore, it is excellent in workability and maintainability.

Further, in the above configuration, the main plate 41 and the first sub-plate 42 are configured so as not to overlap each other at the formation position of the clip hole 54b in the first sub-plate 42. Therefore, it is not necessary to provide a clip hole in the main plate 41, processing becomes easy, and the number of holes through which the resin clip 71B is inserted is reduced, so that workability is improved. Further, since the resin clips 71A and 71B are both configured to insert one plate (main plate 41, first sub-plate 42), the resin clips 71A and 71B having the same length can be used, and the number of parts can be used. Can be lowered.

Further, in the above configuration, the first seal member 39A and the second seal member 39B are provided with an extension portion 61c and an extension portion 64c, and the extension portions 61c and 64a are provided with clip holes 70a and 70b. Therefore, as compared with the configuration in which the clip holes 70a and 70b are formed in the support portions 61 and 64 having a thickness forming the fitting grooves 63 and 66 without providing the extending portions 61c and 64a, the raw material of the duct seal 39 is used. It is possible to reduce the amount of resin material. Further, the length required for the resin clips 71A and 71B can be shortened, and the cost can be reduced.

Further, in the above configuration, a plurality of notches 62a and notches 65a are formed in the seal portion 62 and the seal portion 65 in the first seal member 39A and the second seal member 39B. As a result, even if the intake duct 31 is installed with a relatively large inclination with respect to the duct hole portion 35, the seal portion 62 and the seal portion 65 can be brought into contact with the periphery of the intake duct 31.

(6. Modification example)
Although the embodiments of the present invention have been described in detail above, the above description is merely an example of the present invention in all respects, and various improvements and modifications can be made without departing from the scope of the present invention. can. For example, the following changes can be made.

In the above embodiment, above the shroud 30 in which the partition structure 40 covers the cooling fan F1, the prime mover room (first space) E2 and the space outside the partition structure 40, and the space in which the cooler is arranged (second space). The structure that is the structure that partitions the above has been described, but the present invention is not limited to this. For example, the partition structure 40 may be arranged below the shroud 30 or the cooler, or may be arranged on the front side of the prime mover chamber E2.

Further, the partition structure 40 is not limited to a configuration that partitions the prime mover room E2 and the space outside the prime mover room E2. For example, it may be a partition between the cabin 5 (or a canopy) and a space outside the cabin 5, or it may be a partition between a space in which auxiliary machinery such as a hydraulic pump P1 is arranged and a space outside the cabin 5. ..

Further, in the above embodiment, the case where the present invention is applied to the duct seal 39 that covers the periphery of the intake duct 31 in the duct hole portion 35 has been described, but the arrangement member to be sealed is not limited to the intake duct 31. For example, the distribution member may be a hydraulic hose that circulates hydraulic oil, an air conditioner hose that circulates a refrigerant of an air conditioner, or a fuel hose that circulates fuel to be supplied to a prime mover. , A harness that bundles electric wires used for power supply, signal communication, etc. may be used.

Further, in the above embodiment, the duct seal 39 is divided into a first seal member 39A and a second seal member 39B. However, the number of divisions may be 3 or more. In that case, each of the divided seal members may be fixed to the partition structure 40 using a resin clip. Further, the duct seal 39 does not necessarily have to be divided, and may be an integral one having a hole for passing the intake duct 31 in the center.

Further, in the above embodiment, the resin clips 71A and 71B are exemplified as the locking member, but the locking member is not limited to the resin clips 71A and 71B, and for example, bolts and nuts may be used. However, the duct seal 39 is generally a resin molded product, and the main plate 41 and the first sub-plate are generally metal plates. Therefore, it is preferable that the locking member is suitable for fixing the resin molded product to the metal plate.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and the embodiments obtained by appropriately combining the technical means disclosed in the different embodiments. Is also included in the technical scope of the present invention.

1 Work equipment 11 Support frame 22 Bonnet 30 Shroud 31 Intake duct (planning member)
33 Air cleaner 35 Duct hole (measurement hole)
36 Harness hole 37 Grommet 39 Duct seal (seal member)
39A 1st seal member 39B 2nd seal member 40 Partition structure 41 Main plate 42 1st sub plate (sub plate)
51 First notch 54a, 54b, 70a, 70b Clip hole (mounting hole)
59 Notch openings 61, 64 Supports 61c, 64c Extensions 62, 65 Seals 63, 63 Fitting grooves 71A Resin clip (first locking member)
71B resin clip (second locking member)
E1 prime mover E2 prime mover room (first space)
F1 cooling fan (cooler)
O1 oil cooler (cooler)

Claims (8)

A partition structure that separates the first space and the second space,
It is provided with a distribution member that is arranged through the partition structure.
The partition structure has a arranging hole for passing the arranging member, and the partition structure has a arranging hole.
Further, a sealing member that covers the periphery of the arrangement member in the arrangement hole portion is provided.
The seal member has a groove on the outer peripheral end surface, and the groove is fitted into the edge portion of the arrangement hole portion to be held by the partition structure, and is held by the partition structure by a locking member. Fixed working machine. The locking member is a resin clip.
The working machine according to claim 1, wherein the partition structure and the sealing member have a mounting hole through which the resin clip is inserted. The seal member has an extension portion that abuts only on one surface of the partition structure while being held by the edge portion of the arrangement hole portion, and the attachment hole is formed in the extension portion. The working machine according to claim 2. The partition structure is
A main plate having a notch portion that constitutes the arrangement hole portion and is open for inserting the arrangement member from the outer peripheral direction of the arrangement hole portion.
It has a sub-plate attached to the main plate and closing the opening of the notch in a state where the arrangement member is inserted into the arrangement hole.
The seal member is
A first sealing member held at the edge of the notch of the main plate, and
A second seal member, which is held at the edge of the sub-plate and sandwiches the arrangement member with the first seal member, is provided.
The locking member is
A first locking member for fixing the first sealing member to the main plate,
The working machine according to any one of claims 1 to 3, further comprising a second locking member for fixing the second sealing member to the sub-plate. The partition structure is
A main plate having a notch portion that constitutes the arrangement hole portion and is open for inserting the arrangement member from the outer peripheral direction of the arrangement hole portion.
It has a sub-plate attached to the main plate and closing the opening of the notch in a state where the arrangement member is inserted into the arrangement hole.
The seal member is
A first sealing member held at the edge of the notch of the main plate, and
A second seal member, which is held at the edge of the sub-plate and sandwiches the arrangement member with the first seal member, is provided.
The locking member is
A first locking member for fixing the first seal member to the main plate,
A second locking member for fixing the second sealing member to the sub-plate is provided.
The working machine according to claim 3, wherein the main plate and the sub-plate do not overlap each other at the positions where the mounting holes are formed in the sub-plate. 6. Working machine. The first space is a motor room for accommodating the motor.
The second space is a space outside the prime mover room and in which a cooler is arranged.
A shroud provided between the cooler and the prime mover
The working machine according to any one of claims 1 to 6, wherein the partition structure partitions the prime mover chamber and the outside of the prime mover chamber above the shroud. The air cleaner provided in the second space is provided.
The working machine according to claim 7, wherein the arrangement member is an intake duct that connects the air cleaner and the prime mover.

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