JP6570231B2 - Work machine and cover operation assist mechanism of work machine - Google Patents

Description

  The present invention relates to a working machine and a cover operation assisting mechanism for the working machine. In particular, the present invention relates to a working machine having a function of assisting the operation of a cover for suppressing scattering of scattered matter generated by work, such as a tiller or a substitute shaving machine, and a cover operation assisting mechanism for the working machine.

  Conventionally, in order to reduce the working hours of farm work, automatic work machines have been promoted, and various work machines have been developed. In particular, a work machine that is mounted on the rear part of a traveling machine such as a tractor and can be exchanged according to the type of work can be used for various farming operations by simply replacing the traveling machine such as a tractor as an attachment. It is possible and greatly contributes to the cost reduction of farm work.

  Among such working machines, for example, a cultivator or a shaving machine has a working rotor that cultivates soil by rotating a working claw and crushes the soil mass. As described above, the work machine having the work rotor is disposed above the work rotor in order to suppress the scattered matter such as soil, grass, and pebbles that are spun up by the work claws from being scattered outside the work machine. There are covers in the rear and side directions.

  In this way, in a work machine equipped with a cover that suppresses the scattering of scattered matter due to work, the work rotor and work that scrapes off the scattered matter that adheres to the cover, and work that replaces a deteriorated or failed work rotor and work claws are performed. In this case, it is necessary to perform the work by flipping the cover upward and holding the cover in that state.

  However, since the cover mounted on the work implement is very heavy, the work of flipping up the cover is not only a heavy burden on the worker, but if the cover is dropped during the flip-up work, the worker is injured. Including the risk of damage and damage to equipment. Therefore, for example, as shown in Patent Document 1, a work machine having a cover operation assist mechanism or a cover operation assist mechanism has been developed. In Patent Document 1, the rotary working machine has a cover that covers the upper surface and the rear side of the tilling part, and is provided with a cover operation assisting mechanism that expands and contracts above the rear cover that covers the rear of the tilling part. In the above rotary working machine, the rear cover is flipped up by the cover operation assisting mechanism pulling up the components connected to the rear cover upward.

JP 2009-284878 A

  However, since the cover operation assisting mechanism as shown in Patent Document 1 flips up the rear cover by the action of pulling up the components connected to the rear cover, the cover operation assisting mechanism is interlocked with the cover operation assisting mechanism or the assisting mechanism above the rear cover. Parts are provided. Therefore, the space above the rear cover is limited, and parts other than the auxiliary mechanism cannot be installed above the rear cover, resulting in a problem that the degree of freedom in design is reduced.

  The present invention has been made in view of such a problem, and provides a working machine capable of realizing a compact cover operation assisting mechanism and improving design flexibility, and a cover operation assisting mechanism for the work machine. With the goal.

  A cover operation assisting mechanism according to an embodiment of the present invention has a work claw and has a work rotor that rotates the work claw, a first cover that covers the top of the work rotor, and a rotationally movable connection to the first cover. A cover operation assisting mechanism that is attached to a work machine having a second cover and assists the operation of the second cover, and is connected to a support member provided on the first cover and one side of the support member. A gas spring that can be expanded and contracted, an arm member that is connected to the other side of the support member, converts the expansion and contraction operation of the gas spring into a rotation operation, abuts on the arm member, moves with the rotational movement of the arm member, And a link member connected to the cover, and the gas spring extends to rotate the second cover upward.

  Moreover, in another aspect, the link member may have a first stopper that abuts on the arm member that rotates, and may rotate as the arm member rotates.

  In another aspect, the link member includes a first link member and a second link member, the first link member abuts on the arm member, and moves with the rotational movement of the arm member, and the second link member One side of the second link member may be rotatably connected to the first link member, and the other side of the second link member may be connected to the second cover.

  In another aspect, the arm member or the link member may be provided with a cushioning material at least at a part of the portion where the arm member acts on the link member.

  In another aspect, the arm member has a second stopper, and is brought into contact with the second stopper, thereby enabling a locked state that restricts the rotational movement of the arm member and the arm member to rotate. You may further have the lock member which can switch a lock release state.

  A cover operation assisting mechanism according to an embodiment of the present invention has a work claw and has a work rotor that rotates the work claw, a first cover that covers the top of the work rotor, and a rotationally movable connection to the first cover. A cover operation assisting mechanism that is attached to a work machine having a second cover and assists the operation of the second cover, and is connected to a support member provided on the first cover and one side of the support member. A gas spring that can be expanded and contracted, and a link member that has a slide part in which a part of the second cover is movably in contact, is connected to the other side of the support member, and converts the expansion and contraction operation of the gas spring into a rotation operation And the second spring is rotated upward by extending the gas spring.

  A cover operation assisting mechanism according to an embodiment of the present invention has a work claw and has a work rotor that rotates the work claw, a first cover that covers the top of the work rotor, and a rotationally movable connection to the first cover. A cover operation assisting mechanism that is attached to a work machine having a second cover and assists the operation of the second cover, and is connected to a support member provided on the first cover and one side of the support member. A gas spring that can be expanded and contracted, a link member that is connected to the other side of the support member and converts the expansion and contraction operation of the gas spring into a rotation operation, and a part of the link member along a guide member fixed to the second cover The second cover is rotated and moved upward by extending the gas spring.

  In another aspect, the link member includes a first link member and a second link member, the first link member converts the expansion and contraction operation of the gas spring into a rotation operation, and one side of the second link member is The other side of the second link member connected to the first link member may be provided so as to be slidable along a guide member fixed to the second cover.

  A cover operation assisting mechanism according to an embodiment of the present invention has a work claw and has a work rotor that rotates the work claw, a first cover that covers the top of the work rotor, and a rotationally movable connection to the first cover. A cover operation assisting mechanism that is attached to a work machine having a second cover and assists the operation of the second cover, and is connected to a support member provided on the first cover and one side of the support member. A gas spring that can be expanded and contracted, a slide portion, connected to the other side of the support member, connected to a first link member that converts the expansion and contraction operation of the gas spring into a rotation operation, and a second cover, and a part thereof A second link member that is movably in contact with the slide portion, and the gas cover extends to rotate the second cover upward.

  In another aspect, the gas spring includes a cylinder and a piston rod that is movable in the expansion and contraction direction of the gas spring inside the cylinder, and the cylinder is connected to the arm member, the link member, or the first link member. The piston rod may be connected to the support member, and the connecting portion of the piston rod to the support member may be positioned below the arm member, the link member, or the first link member in the vertical direction.

  A work machine according to an embodiment of the present invention has a work claw, and is connected to a work rotor that rotates the work claw, a first cover that covers the work rotor, and a first cover that is rotatable. A cover operation assisting mechanism for assisting the operation of the second cover; the cover operation assisting mechanism is provided with a support member provided on the first cover; and an expansion / contraction connected to one side of the support member A gas cover, an arm member connected to the other side of the support member, which converts the expansion and contraction operation of the gas spring into a rotation operation, abuts on the arm member, and moves with the rotation of the arm member; A link member connected to the second cover, and the gas spring extends to rotate the second cover upward.

  A work machine according to an embodiment of the present invention has a work claw, and is connected to a work rotor that rotates the work claw, a first cover that covers the work rotor, and a first cover that is rotatable. A cover operation assisting mechanism for assisting the operation of the second cover; the cover operation assisting mechanism is provided with a support member provided on the first cover; and an expansion / contraction connected to one side of the support member And a link member that has a slide part in which a part of the second cover is movably in contact and is connected to the other side of the support member and converts the expansion and contraction operation of the gas spring into a rotation operation. The second cover is rotated upward by extending the gas spring.

  A work machine according to an embodiment of the present invention has a work claw, and is connected to a work rotor that rotates the work claw, a first cover that covers the work rotor, and a first cover that is rotatable. A cover operation assisting mechanism for assisting the operation of the second cover; the cover operation assisting mechanism is provided with a support member provided on the first cover; and an expansion / contraction connected to one side of the support member A possible gas spring, a link member connected to the other side of the support member and converting the expansion / contraction operation of the gas spring into a rotation operation, and a part of the link member slide along a guide member fixed to the second cover The second cover is rotated and moved upward by extending the gas spring.

  A work machine according to an embodiment of the present invention has a work claw, and is connected to a work rotor that rotates the work claw, a first cover that covers the work rotor, and a first cover that is rotatable. A cover operation assisting mechanism for assisting the operation of the second cover; the cover operation assisting mechanism is provided with a support member provided on the first cover; and an expansion / contraction connected to one side of the support member A gas spring having a sliding portion, connected to the other side of the support member, connected to a first link member for converting the expansion and contraction operation of the gas spring into a rotation operation, and a second cover, a part of the sliding portion And a second link member that is movably in contact with the gas spring, and the gas spring extends to rotate the second cover upward.

  According to the working machine and the cover operation assisting mechanism of the work machine according to the present invention, a compact cover operation assisting mechanism can be realized, and the degree of design freedom can be improved.

It is a top view showing the whole cover operation auxiliary mechanism composition concerning Embodiment 1 of the present invention. It is a side view showing the whole cover operation auxiliary mechanism composition concerning Embodiment 1 of the present invention. It is a side view which shows the case where a lock member is located in a locked state in the cover operation assistance mechanism which concerns on Embodiment 1 of this invention. It is a side view which shows the case where a lock member is located in a lock release state in the cover operation assistance mechanism concerning Embodiment 1 of the present invention. In the operation method of the cover operation assisting mechanism according to the first embodiment of the present invention, the lock member is slightly shifting to the lock standby state while the arm member is in contact with the lock member with the raising operation of the second cover. It is a side view which shows a state. In the operation method of the cover operation auxiliary mechanism according to the first embodiment of the present invention, a side view showing a state where the arm member pushes the lock member downward further from the state of FIG. is there. In the operation method of the cover operation auxiliary mechanism according to the first embodiment of the present invention, it is a side view showing a state in which the lock pin (second stopper) of the arm member comes into contact with the lock member and enters a lock standby state. In the operation method of the cover operation auxiliary mechanism according to the first embodiment of the present invention, FIG. It is a side view which shows the state which raised the 2nd cover without using a cover operation assistance mechanism in the operation | movement method of the cover operation assistance mechanism which concerns on Embodiment 1 of this invention. It is a side view which shows the whole structure of the cover operation assistance mechanism which concerns on Embodiment 2 of this invention. It is a side view explaining the operation | movement which flips up a 2nd cover in the unlocking state in the operation | movement method of the cover operation | movement assistance mechanism which concerns on Embodiment 2 of this invention. In the operation method of the cover operation assistance mechanism which concerns on Embodiment 2 of this invention, it is a side view explaining the operation | movement which flips up a 2nd cover, without using a cover operation assistance mechanism. It is a side view which shows the whole structure of the cover operation assistance mechanism which concerns on Embodiment 3 of this invention. It is a side view explaining the operation | movement which flips up a 2nd cover in the unlocking state in the operation | movement method of the cover operation | movement assistance mechanism which concerns on Embodiment 3 of this invention. It is a side view explaining the operation | movement which raises a 2nd cover, without using a cover operation assistance mechanism in the operation method of the cover operation assistance mechanism which concerns on Embodiment 3 of this invention. It is a side view which shows the whole structure of the cover operation assistance mechanism which concerns on Embodiment 4 of this invention. It is a side view explaining the operation | movement which flips up a 2nd cover in the unlocking state in the operation | movement method of the cover operation assistance mechanism which concerns on Embodiment 4 of this invention. It is a side view explaining the operation | movement which raises a 2nd cover, without using a cover operation assistance mechanism in the operation | movement method of the cover operation assistance mechanism which concerns on Embodiment 4 of this invention.

  Hereinafter, a working machine and a cover operation assisting mechanism of the working machine according to the present invention will be described with reference to the drawings. However, the working machine and the cover operation assisting mechanism of the working machine of the present invention can be implemented in many different modes, and are not construed as being limited to the description of the embodiment described below. Note that in the drawings referred to in this embodiment, the same portions or portions having similar functions are denoted by the same reference numerals, and repetitive description thereof is omitted. In addition, for convenience of explanation, the description will be made using the terms “upper” or “lower”, but they may be arranged so that the vertical relationship is opposite to that shown in the figure. Moreover, similarly, although it demonstrates using the word of the front or back, you may arrange | position so that a context may be reverse to illustration.

<Embodiment 1>
The outline | summary of the cover operation | movement assistance mechanism of the working machine which concerns on Embodiment 1 of this invention is demonstrated using FIG. 1 thru | or FIG. In FIG. 1 to FIG. 9, a cover operation assist that assists the raising operation of a cover that is attached to a work machine that plows soil by rotating a work claw, such as a tiller or a plow, and suppresses the scattering of scattered matter. The mechanism will be described. However, the cover operation assisting mechanism according to the present invention is not limited to that used in the field cultivator and the substitute shaver as described above.

[Configuration of Cover Operation Auxiliary Mechanism 10]
FIG. 1 is a plan view showing an overall configuration of a cover operation assisting mechanism according to Embodiment 1 of the present invention. FIG. 2 is a side view showing the overall configuration of the cover operation assisting mechanism according to the first embodiment of the present invention. As shown in FIG. 2, the working machine 20 provided with the cover operation assisting mechanism 10 described in FIGS. 1 and 2 has a work claw (not shown), and plows the soil by rotating the work claw. The work rotor 190 that crushes the clod, the first cover 180 that covers the work rotor and suppresses the scattering of mud and dirt by the work rotor, and the connection portion 171 rotates relative to the first cover 180. And a second cover 170 that is operatively connected. The cover operation assisting mechanism 10 described with reference to FIGS. 1 and 2 assists the upward rotational movement (bounce-up operation) of the second cover 170.

  As shown in FIG. 1, the cover operation assisting mechanism 10 includes a support member 200, an extendable gas spring 300, an arm member 400, a first link member 500, a second link member 550, and a lock member 600. Further, as shown in FIG. 2, a frame pipe 700 that is a reinforcing member of the working machine is disposed above the support member 200. Note that the location where the frame pipe 700 is installed differs depending on the work machine (the position may be indicated by a solid line or the position indicated by a two-dot chain line).

  The support member 200 reinforces the mechanical strength of the support member 200 and is fixed to another member using a frame portion 210 that protects the member disposed inside the support member 200 and a fastener 221 such as a screw or a bolt. And a spring fixing portion 230 for fixing one end of a spring 231 connecting the support member 200 and the lock member 600. Here, as shown in FIG. 2, the support member 200 is fixed to the first cover 180 by a fastener 221. In addition, an opening is provided in a part of the frame portion 210, and the first shaft 241, the second shaft 242, and the third shaft 243 are held by the opening. These axes may be fixed to the frame part 210, and may be held by the frame part 210 so as to operate in the axial direction or the rotation direction of these axes.

  The gas spring 300 includes a cylinder 310 and a piston rod 320 that can move inside the cylinder 310 in the expansion and contraction direction of the gas spring 300. The piston rod 320 has a first connection portion 321, and the first connection portion 321 is connected to a first shaft 241 that is fixedly or operably held by the support member 200 so as to be capable of rotational movement. That is, the gas spring 300 is connected to one side of the support member 200. Here, a location where the first shaft 241 and the first connection portion 321 are connected is referred to as a first portion 331. In other words, the extendable gas spring 300 is connected to the support member 200 at the first portion 331. The cylinder 310 has a second connecting portion 311, and the second connecting portion 311 is connected to the fourth shaft 244 so as to be able to rotate. Here, a portion where the fourth shaft 244 and the second connection portion 311 are connected is referred to as a second portion 332. In other words, the gas spring 300 is connected to the arm member 400 at the second portion 332.

  Here, the gas spring 300 is installed so as to be inclined downward in the vertical direction from the cylinder 310 toward the piston rod 320 in a state of being attached to the work machine 20. That is, the gas spring 300 is arranged so that the connecting portion of the piston rod 320 to the support member 200 is positioned below the connecting portion of the cylinder 310 to the arm member 400 in the vertical direction. In other words, the gas spring 300 is disposed such that the first portion 331 is positioned below the second portion 332 in the vertical direction. As described above, the cylinder 310 of the gas spring 300 is disposed so as to be directed downward in the vertical direction, so that the gas filled in the gas spring 300 can be made difficult to escape.

  FIG. 2 shows a configuration in which the gas spring 300 is arranged so that the first part 331 is positioned below the second part 332 in the vertical direction. However, the present invention is not limited to this configuration. For example, when the cylinder 310 is connected to the support member 200 and the piston rod 320 is connected to the arm member 400, that is, the positions of the cylinder 310 and the piston rod 320 are different from those in FIG. In the opposite case, the first portion 331 (the connection portion between the support member 200 and the cylinder 310) is positioned above the second portion 332 (the connection portion between the arm member 400 and the piston rod 320) in the vertical direction. A gas spring 300 may be arranged.

  Further, the gas spring 300 is not necessarily arranged so as to be inclined downward in the vertical direction from the cylinder 310 toward the piston rod 320. In other words, the gas spring 300 has a structure in which the gas filled in the gas spring 300 is difficult to escape, or the gas spring 300 is horizontal if there is no problem in practical use even if the gas filled in the gas spring 300 escapes. Or may be arranged so as to be inclined upward in the vertical direction from the cylinder 310 toward the piston rod 320.

  The arm member 400 is rotatably connected to the fourth shaft 244 to which the second connection portion 311 of the cylinder 310 is connected. Here, a portion where the second connecting portion 311 of the cylinder 310 and the arm member 400 are connected to the fourth shaft 244 is referred to as a second portion 332. In other words, the arm member 400 is connected to the gas spring 300 at the second portion 332 opposite to the first portion 331 of the gas spring 300. The arm member 400 is rotatably connected to a third shaft 243 that is fixedly or operatively held on the support member 200. That is, the arm member 400 is rotatably connected to the other side of the support member 200. Here, a portion where the third shaft 243 and the arm member 400 are connected is referred to as a third portion 333. When the gas spring 300 expands and contracts, the arm member 400 rotates and moves around the third shaft 243 by the action of the second portion 332. In other words, the arm member 400 converts the expansion / contraction operation of the gas spring 300 into a rotation operation that rotates around the third portion 333. Further, the arm member 400 has a lock pin 410 that restricts the rotational movement of the arm member 400 by contacting the lock member 600 in the locked state. In addition, a buffer material 430 is provided at least at a part of the portion where the arm member 400 acts on the first stopper 510 of the first link member 500. The buffer material 430 may be provided on the arm member 400 side, or may be provided on the first link member 500 side (the first stopper 510 side in FIG. 2).

  The first link member 500 includes a first stopper 510 that abuts on the arm member 400 that rotates. Similar to the arm member 400, the first link member 500 is connected to the third shaft 243 so as to be rotatable. Here, when the arm member 400 rotates counterclockwise around the third shaft 243, the support portion 420 of the arm member 400 comes into contact with the first stopper 510 via the buffer material 430, and the first link member 500 is The arm member 400 moves with the rotational movement. As shown in FIG. 2, when the first link member 500 is connected to the third shaft 243, the first link member 500 rotates about the third shaft 243 as the arm member 400 rotates. . Here, in FIG. 2, the configuration in which the cushioning material 430 is provided between the arm member 400 and the first link member 500 is illustrated, but the cushioning material 430 may not be provided. You may contact | abut to the 1st link member 500. FIG.

  Here, in FIG. 2, the configuration in which the first link member 500 is connected to the third shaft 243 is illustrated. However, the configuration is not limited to this configuration, and the first link member 500 is, for example, accompanying the rotational movement of the arm member 400. The first link member 500 may be connected to the arm member 400 via a guide member that guides the first link member 500 to move upward. In this case, the first link member 500 moves along the guide direction of the guide member as the arm member 400 rotates. 2 illustrates the configuration in which the first link member 500 includes the first stopper 510. However, even if the first link member 500 does not include the first stopper 510, a part of the arm member 400 may be used. However, the first link member 500 may move as the arm member 400 rotates by contacting a part of the first link member 500. Here, similarly to the above, a buffer material 430 may be provided at the contact point between the arm member 400 and the first link member 500.

  The second link member 550 is rotatably connected to a fifth shaft 245 that is fixedly or operatively held on the second cover 170. Here, a portion where the fifth shaft 245 and the second cover 170 are connected is referred to as a fourth portion 334. The second link member 550 is rotatably connected to a sixth shaft 246 that is fixed or operable to the first link member 500. Here, a portion where the sixth shaft 246, the first link member 500, and the second link member 550 are connected is referred to as a fifth portion 335.

  In the above description, the first link member 500 and the second link member 550 are separately described. However, the first link member 500 and the second link member 550 may be collectively referred to as one link member 590.

  As described above, the cover operation assisting mechanism 10 pushes the arm member 400 connected by the second part 332 by the gas spring 300 extending backward, and the arm member 400 and the first link member 500 are moved to the third shaft 243. Rotate counterclockwise around the center. The first link member 500 that has rotated and moved up raises the second link member 550 and flips up the second cover 170. In other words, the cover operation assisting mechanism 10 moves the second portion 332 in a direction approaching the second cover 170, that is, the gas spring 300 extends in a direction approaching the second cover 170 side, thereby causing the second cover 170 to move. Jump up.

  The lock member 600 has a locking portion 620 that limits the rotational movement of the arm member 400 by locking with the lock pin 410 provided on the arm member 400 in the locked state. Here, the lock pin may be referred to as a second stopper. The lock member 600 is fixed to the seventh shaft 247 and the lever 610 connected to the seventh shaft 247. Here, a spring 231 is fixed to one end of the seventh shaft 247. That is, the spring 231 is fixed to the spring fixing portion 230 of the support member 200 and the seventh shaft 247 fixed to the lock member 600, and is arranged to pull each other. The lock member 600 is connected to the second shaft 242 so as to be locked or rotationally movable, and rotates about the second shaft 242. Here, when the lever 610 is pulled upward, the lock member 600 rotates counterclockwise around the second shaft 242. As shown in FIG. 4, when the lock member 600 rotates counterclockwise around the second shaft 242, the spring 231 is once stretched, but when the lock member 600 rotates more than a certain amount, the spring 231 contracts again, The position of the lock member 600 is stabilized.

  As described above, the cover operation assisting mechanism 10 according to the first embodiment of the present invention is configured such that the front end of the gas spring 300 is fixed, the gas spring 300 extends rearward, and the arm member 400 is pushed (pushed up). 2 Assists the cover 170 to be flipped up. Therefore, it is not necessary to arrange a member of the cover operation assisting mechanism in the space above the support member 200 as shown in FIG. 2, and for example, a member such as the frame pipe 700 can be arranged as shown in FIG. Further, as shown in FIG. 2, it is possible to cope with the case where the position of the frame pipe 700 is different depending on the work machine. That is, a compact cover operation assist mechanism can be realized, and the degree of design freedom can be improved. Therefore, the number of types of work machines to which the cover operation assist mechanism can be attached increases.

[Operation Method of Locking Member 600]
An example in which the “locked state” and the “unlocked state” are switched depending on the position of the lock member 600 will be described with reference to FIGS. 3 and 4. FIG. 3 is a side view showing a case where the lock member is positioned in the locked state in the cover operation assisting mechanism according to the first embodiment of the present invention. FIG. 4 is a side view showing a case where the lock member is located in the unlocked state in the cover operation assisting mechanism according to the first embodiment of the present invention. 3 and 4, the lock member 600 and the lever 610 are indicated by bold lines.

  As shown in FIG. 3, in the locked state, the second stopper 410 of the arm member 400 and the locking portion 620 of the lock member 600 are in contact with each other, so that the arm member 400 rotates counterclockwise around the third shaft 243. Movement movement is limited. That is, the rotational movement of the arm member 400 is restricted by the contact between the second stopper 410 and the locking portion 620. On the other hand, as shown in FIG. 4, in the unlocked state, the lever 610 is lifted upward to rotate the lock member 600 counterclockwise about the second shaft 242, and the second stopper 410 and the lock member 600 are moved. Non-contact allows the arm member 400 to rotate counterclockwise about the third shaft 243.

  Here, when the lever 610 is lifted upward from the locked state shown in FIG. 3 and the lock member 600 is rotated counterclockwise around the second shaft 242, the spring 231 is stretched. The spring 231 stretched by the rotational movement of the lock member 600 is stretched most when the spring fixing portion 230, the second shaft 242 and the seventh shaft 247 are aligned, and further rotates the lock member 600 counterclockwise. , The spring 231 contracts and the lever 610 is lifted upward and is stabilized. That is, the two states of “locked state” and “unlocked state” can be switched depending on the position of the lock member 600. Further, in order to switch between these two states, an external force that stretches the spring 231 is required. That is, the “locked state” and the “unlocked state” can be obtained by the spring 231 attached to the lock member 600.

[Operation method of work machine 20]
The operation of the cover operation assisting mechanism 10 and the work machine 20 when the second cover 170 is flipped up will be described with reference to FIGS. FIGS. 5 to 8 illustrate the operation of raising the second cover 170 with the assistance of the cover operation assisting mechanism 10 in the unlocked state, and FIG. 9 illustrates the first operation without the assistance of the cover operation assisting mechanism 10 in the locked state. The operation of flipping up the two cover 170 will be described.

  FIG. 5 is a side view showing a state in which the arm member is in contact with the lock member as the second cover is flipped up in the operation method of the cover operation assisting mechanism according to the first embodiment of the present invention. As shown in FIG. 5, when the second cover 170 is flipped up with the assistance of the cover operation assist mechanism 10, the second link member 550 moves upward, and the first link member 500 moves the third shaft 243. Rotate counterclockwise to the center. At this time, the first stopper 510 of the first link member 500 is lifted upward by the support portion 420 of the arm member 400. When the first link member 500 rotates, the locking portion 520 provided on the first link member 500 comes into contact with the protrusion 630 of the lock member 600.

  FIG. 6 is a side view showing a state in which the arm member pushes the lock member downward in accordance with the second cover flip-up operation in the operation method of the cover operation assisting mechanism according to the first embodiment of the present invention. When the locking portion 520 of the first link member 500 is in contact with the protruding portion 630 of the locking member 600 and the second cover 170 is further lifted upward, the locking portion 520 contacts the protruding portion 630 of the locking member 600. The contact portion is pushed downward, and the lock member 600 rotates clockwise about the second shaft 242.

  FIG. 7 is a side view showing a state in which the second stopper (lock pin) of the arm member contacts the lock member and enters the lock standby state in the operation method of the cover operation assist mechanism according to the first embodiment of the present invention. is there. When the second cover 170 is further flipped upward from the state of FIG. 6, the lock member 600 is further rotated clockwise by the action of the locking portion 520. When the lock member 600 rotates and moves clockwise beyond the position where the spring fixing portion 230, the second shaft 242 and the seventh shaft 247 are aligned, the lock member 600 is rotated clockwise by the elastic force of the spring 231. Rotate to (try to return to the locked state). In other words, the lock member 600 changes from the unlocked state to the locked state (lock standby state) by the flip-up operation of the second cover 170.

  FIG. 8 is a side view showing a state in which the second cover is being lowered in the operation method of the cover operation assisting mechanism according to the first embodiment of the present invention. 7, when the second cover 170 is stopped and the second cover 170 is moved downward, the first link member 500 and the arm member 400 rotate clockwise about the third shaft 243. Rotate and move. At this time, the locking portion 520 of the first link member 500 is separated from the protruding portion 630 of the locking member 600, so that the locking portion 520 that rotates the locking member 600 clockwise about the second shaft 242 works. Disappear. However, the action of rotating the lock member 600 clockwise around the second shaft 242 by the elastic force of the spring 231 is maintained. Therefore, the lock member 600 is pressed against the second stopper 410 by the elastic force of the spring 231. Thus, when the second cover is lowered, the second stopper 410 slides along the lock member 600 as shown by the arrow in FIG. 8 and returns to the locked state.

  FIG. 9 is a side view showing a state in which the second cover is flipped up without assistance of the cover operation assisting mechanism in the operation method of the cover operation assisting mechanism according to the first embodiment of the present invention. Since the arm member 400 and the first link member 500 are connected to the third shaft 243 independently of each other, except for the state where the first stopper 510 and the support portion 420 are in contact with each other via the cushioning material 430, Each can rotate independently. Therefore, even when the position of the lock member 600 is in the locked state and the rotational movement of the arm member 400 is restricted, the second cover 170 can be flipped up as shown in FIG. Accordingly, for example, when the unevenness of the ground to be plowed is large and the second cover 170 and the ground collide, the energy of the collision can be dispersed by the second cover 170 being flipped up. In this case, since the cover operation assisting mechanism 10 does not function, the second cover 170 flipped up by the collision tries to return to its original position by its own weight. Accordingly, since the second cover 170 can move up and down following the unevenness of the ground, the normal function of leveling the ground by the second cover 170 is also maintained.

  As described above, the cover operation assisting mechanism 10 according to the first embodiment of the present invention can switch between the “locked state” and the “unlocked state” using the elastic force of the spring 231. Switching from the “locked state” to the “unlocked state” is performed by lifting the lever 610 upward, and switching from the “unlocked state” to the “locked state” flips the second cover 170 upward. It is done automatically in operation. Further, since the arm member 400 and the first link member 500 are connected to the third shaft 243 and rotated, it is not necessary to use a member such as a long hole and a pin that slides inside the long hole. That is, since the second cover 170 can be flipped up without being worn between the members, it is possible to obtain the cover operation assisting mechanism 10 that is unlikely to deteriorate due to wear between the members.

<Embodiment 2>
The outline | summary of the cover operation | movement assistance mechanism of the working machine which concerns on Embodiment 2 of this invention is demonstrated using FIG. 10 thru | or FIG. 10 to 12, the cover operation assisting mechanism 11 in which the link member 800 that flips the second cover 172 upward is directly connected to the gas spring 300 will be described.

[Configuration of Cover Operation Auxiliary Mechanism 11]
FIG. 10 is a side view showing the overall configuration of the cover operation assisting mechanism according to the second embodiment of the present invention. As shown in FIG. 2, the work machine 21 in which the cover operation assisting mechanism 11 described in FIG. 10 is installed has a work claw, and a work rotor 190 that cultivates soil by rotating the work claw to crush the clot. A first cover 180 that covers the upper side of the working rotor and prevents scattering of mud, dirt and the like by the working rotor, and a second cover that is rotatably connected to the first cover 180 at the connection portion 171. 172. Here, the cover operation assisting mechanism 11 assists the rotational movement of the second cover 172 upward.

  As shown in FIG. 10, the cover operation assisting mechanism 11 includes a support member 200, an extendable gas spring 300, a link member 800, and a lock member 600. Here, since the support member 200, the gas spring 300, and the lock member 600 are the same as those in FIG. 2, the description thereof is omitted here.

  The second cover 172 has a shape partially protruding above the link member 800, and a slide pin 173 that slides or rotates above the link member 800 is provided. The slide pin 173 may be integrally formed with or fixed to the second cover 172, and is connected to the second cover 172 so that the slide pin 173 can move while rotating on the slide portion 801. May be.

  The link member 800 has a slide portion 801 with which the slide pin 173 is movably in contact. The link member 800 is connected to the other side of the support member 200 (a side different from the side where the gas spring 300 is connected to the support member 200) so as to be rotatable. In other words, the link member 800 is connected to the gas spring 300 at the second portion 332 opposite to the first portion 331 of the gas spring 300. Specifically, the link member 800 is connected to the second connection portion 311 of the cylinder 310 at the second portion 332. The link member 800 is rotatably connected to a third shaft 243 that is fixed or operable to the support member 200. Here, a portion where the third shaft 243 and the link member 800 are connected is referred to as a third portion 333. When the gas spring 300 expands and contracts, the link member 800 rotates and moves around the third shaft 243 by the action of the second portion 332. In other words, the link member 800 converts the expansion / contraction operation of the gas spring 300 into a rotation operation that rotates about the third portion 333. Further, the link member 800 has a lock pin 802 that restricts the rotational movement of the link member 800 by contacting the lock member 600 in the locked state.

[Operation method of work machine 21]
The operation of the cover operation assisting mechanism 11 and the work implement 21 when the second cover 172 is flipped up will be described with reference to FIGS. 11 and 12. FIG. 11 illustrates an operation of raising the second cover 172 with the assistance of the cover operation assisting mechanism 11 in the unlocked state, and FIG. 12 illustrates the second cover 172 without the assistance of the cover operation assisting mechanism 11 in the locked state. The operation of jumping up will be described. 11 and 12, the second cover 172 and the link member 800 drawn with a solid line show a state before the second cover flip-up operation, and the second cover 172 and the link member 800 drawn with a two-dot chain line show the first cover. The state after 2 cover flip-up operation is shown. Here, for convenience of explanation, only the state of the gas spring 300 before the second cover flip-up operation is shown.

  FIG. 11 is a side view for explaining the operation of flipping up the second cover in the unlocked state in the operation method of the cover operation assisting mechanism according to the second embodiment of the present invention. As shown in FIG. 11, when the second cover 172 is flipped upward with the assistance of the cover operation assisting mechanism 11, the link member 800 receives the assisting force from the gas spring 300 and counterclockwise around the third shaft 243. Rotate around. At this time, the slide pin 173 of the second cover 172 is lifted upward by the link member 800 while sliding the slide portion 801 of the link member 800.

  As described above, the cover operation assisting mechanism 11 pushes the link member 800 connected by the second portion 332 as the gas spring 300 extends rearward, and causes the link member 800 to rotate counterclockwise about the third shaft 243. Move to rotate. The rotationally moved link member 800 lifts the slide pin 173 upward and flips the second cover 172 up. In other words, the cover operation assisting mechanism 11 moves the second portion 332 in a direction approaching the second cover 172, that is, the gas spring 300 extends in a direction approaching the second cover 172 side, thereby causing the second cover 172 to move. Jump up.

  FIG. 12 is a side view for explaining the operation of flipping up the second cover in the locked state in the operation method of the cover operation assisting mechanism according to the second embodiment of the present invention. That is, the second cover is flipped up without assistance from the cover operation assist mechanism. In the state before the second cover 172 is flipped up, the slide pin 173 is in contact with the slide portion 801, but a member that restricts the slide pin 173 from rotating counterclockwise around the connection portion 171 is disposed. It has not been. Therefore, even when the position of the lock member 600 is in the locked state and the rotational movement of the link member 800 is restricted, the second cover 172 can be flipped up as shown in FIG. Accordingly, for example, when the unevenness of the ground to be plowed is large and the second cover 172 and the ground collide, the energy of the collision can be dispersed by the second cover 172 being flipped up. In this case, since the cover operation assisting mechanism 11 does not function, the second cover 172 flipped up by the collision tries to return to its original position by its own weight. Accordingly, since the second cover 170 can move up and down following the unevenness of the ground, the normal function of leveling the ground by the second cover 172 is also maintained.

  As described above, in the cover operation assisting mechanism 11 according to the second embodiment of the present invention, the front end of the gas spring 300 is fixed, the gas spring 300 extends rearward, and the link member 800 is pushed in, so that the second cover 172 is pressed. Assists the jumping movement. Therefore, it is not necessary to arrange a member of the cover operation assisting mechanism in the space above the support member 200 as shown in FIG. 11, and for example, a member such as the frame pipe 700 can be arranged as shown in FIG. That is, a compact cover operation assist mechanism can be realized, and the degree of design freedom can be improved. Moreover, since it is not necessary to use the arm member of Embodiment 1, the number of parts which implement | achieves a cover operation | movement auxiliary | assistant mechanism can be decreased. Further, by connecting the slide pin 173 to the second cover 172 so as to be rotatable, it is possible to obtain a cover operation assisting mechanism in which deterioration due to wear of the slide pin 173 and the slide portion 801 hardly occurs.

<Embodiment 3>
The outline | summary of the cover operation | movement assistance mechanism of the working machine which concerns on Embodiment 3 of this invention is demonstrated using FIG. 13 thru | or FIG. 13 to 15, the first link member 810 is directly connected to the gas spring 300, and the second link member 550 connected to the first link member 810 is movable to the guide member 820 fixed to the second cover 170. The cover operation assisting mechanism 12 connected to will be described.

[Configuration of Cover Operation Auxiliary Mechanism 12]
FIG. 13 is a side view showing the overall configuration of the cover operation assisting mechanism according to Embodiment 3 of the present invention. As shown in FIG. 2, the work machine 22 provided with the cover operation assisting mechanism 12 described in FIG. 13 has a work claw, and a work rotor 190 that cultivates the soil by rotating the work claw and crushes the clot. A first cover 180 that covers the upper side of the working rotor and prevents scattering of mud, dirt and the like by the working rotor, and a second cover that is rotatably connected to the first cover 180 at the connection portion 171. 170. Here, the cover operation assisting mechanism 12 assists the upward rotational movement of the second cover 170.

  As shown in FIG. 13, the cover operation assisting mechanism 12 includes a support member 200, an extendable gas spring 300, a first link member 810, a second link member 550, a guide member 820, and a lock member 600. Here, since the support member 200, the gas spring 300, and the lock member 600 are the same as those in FIG. 2, the description thereof is omitted here.

  The first link member 810 is connected to the other side of the support member 200 (a side different from the side where the gas spring 300 is connected to the support member 200) so as to be rotatable. In other words, the first link member 810 is connected to the gas spring 300 at the second portion 332 opposite to the first portion 331 of the gas spring 300. Specifically, the first link member 810 is connected to the second connection portion 311 of the cylinder 310 at the second portion 332. The first link member 810 is rotatably connected to a third shaft 243 that is fixedly or operatively held on the support member 200. Here, a portion where the third shaft 243 and the first link member 810 are connected is referred to as a third portion 333. When the gas spring 300 expands and contracts, the first link member 810 rotates and moves around the third shaft 243 by the action of the second portion 332. In other words, the first link member 810 converts the expansion / contraction operation of the gas spring 300 into a rotation operation that rotates around the third portion 333. Further, the first link member 810 has a lock pin 812 that restricts the rotational movement of the first link member 810 by contacting the lock member 600 in the locked state.

  The second link member 550 is rotatably connected to a sixth shaft 246 that is fixedly or operatively held by the first link member 810. Here, a portion where the sixth shaft 246, the first link member 810, and the second link member 550 are connected is referred to as a fifth portion 335.

  The guide member 820 fixed to the second cover 170 has a slide portion 821 provided with a long hole. A fifth shaft 245 is slidably disposed inside the long hole of the slide portion 821. Here, when the fifth shaft 245 is a part of the second link member 550, it can be said that a part of the second link member 550 is slidably disposed along the guide member 820. In other words, the second link member 550 is connected to the guide member 820 at the fourth portion 334 so as to be linearly movable.

[Operation method of work machine 22]
The operation of the cover operation assisting mechanism 12 and the work implement 22 when the second cover 170 is flipped up will be described with reference to FIGS. 14 and 15. 14 illustrates an operation of raising the second cover 170 with the assistance of the cover operation assisting mechanism 12 in the unlocked state, and FIG. 15 illustrates the second cover 170 in the locked state without assistance of the cover operation assisting mechanism 12. The operation of jumping up will be described. 14 and 15, the second cover 170, the guide member 820, the second link member 550, and the first link member 810 drawn with solid lines indicate a state before the second cover flip-up operation, and are indicated by a two-dot chain line. The drawn second cover 170, guide member 820, second link member 550, and first link member 810 show the state after the second cover flip-up operation. Here, for convenience of explanation, only the state of the gas spring 300 before the second cover flip-up operation is shown.

  FIG. 14 is a side view illustrating an operation of flipping up the second cover in the unlocked state in the operation method of the cover operation assisting mechanism according to the third embodiment of the present invention. As shown in FIG. 14, when the second cover 170 is flipped upward with the assistance of the cover operation assisting mechanism 12, the first link member 810 receives the assisting force from the gas spring 300 and focuses on the third shaft 243. The second link member 550 is lifted upward by the first link member 810 while being rotated counterclockwise around the sixth shaft 246. Here, in the above operation, the relative position of the fifth shaft 245 in the slide portion 821 does not change. That is, during the above-described operation, the fifth shaft 245 is at a position closest to the connection portion 171 in the slide portion 821.

  As described above, the cover operation assisting mechanism 12 pushes the first link member 810 connected by the second portion 332 and extends the first link member 810 around the third shaft 243 by extending the gas spring 300 backward. Rotate to counterclockwise. The first link member 810 that has rotated moves the second link member 550 upward, and the second cover 170 is flipped up. In other words, the cover operation assisting mechanism 12 moves the second portion 332 in a direction approaching the second cover 170, that is, the gas spring 300 extends in a direction approaching the second cover 170 side, thereby causing the second cover 170 to move. Jump up.

  FIG. 15 is a side view illustrating an operation of flipping up the second cover in the locked state in the operation method of the cover operation assisting mechanism according to the third embodiment of the present invention. That is, the second cover is flipped up without assistance from the cover operation assist mechanism. In the locked state, the first link member 810 does not move. However, the second shaft 550 moves counterclockwise around the sixth shaft 246 while the fifth shaft 245 moves inside the slide portion 821. The second cover 170 is flipped up. That is, even if the position of the lock member 600 is in the locked state and the rotational movement of the first link member 810 is restricted, the second cover 170 can be flipped up as shown in FIG. Accordingly, for example, when the unevenness of the ground to be plowed is large and the second cover 170 and the ground collide, the energy of the collision can be dispersed by the second cover 170 being flipped up. In this case, since the cover operation assisting mechanism 12 does not function, the second cover 170 flipped up by the collision tries to return to its original position by its own weight. Accordingly, since the second cover 170 can move up and down following the unevenness of the ground, the normal function of leveling the ground by the second cover 170 is also maintained.

  As described above, the cover operation assisting mechanism 12 according to the third exemplary embodiment of the present invention is configured such that the front end of the gas spring 300 is fixed, the gas spring 300 extends rearward, and the first link member 810 is pushed in to the second. Assisting the cover 170 to flip up. Therefore, it is not necessary to arrange the cover operation assisting mechanism in the space above the support member 200 as shown in FIG. 14, and for example, a member such as the frame pipe 700 can be arranged as shown in FIG. That is, a compact cover operation assist mechanism can be realized, and the degree of design freedom can be improved. Moreover, since it is not necessary to use the arm member of Embodiment 1, the number of parts which implement | achieves a cover operation | movement auxiliary | assistant mechanism can be decreased.

<Embodiment 4>
The outline | summary of the cover operation | movement assistance mechanism of the working machine which concerns on Embodiment 4 of this invention is demonstrated using FIG. 16 thru | or FIG. 16 to 18, the cover operation assisting mechanism 13 in which the first link member 830 is directly connected to the gas spring 300 and the first link member 830 and the second link member 550 are movably connected will be described.

[Configuration of Cover Operation Auxiliary Mechanism 13]
FIG. 16 is a side view showing the overall configuration of the cover operation assisting mechanism according to Embodiment 4 of the present invention. The work machine 23 in which the cover operation assisting mechanism 13 described in FIG. 16 is installed has a work claw as in FIG. 2, and a work rotor 190 that cultivates the soil by rotating the work claw and crushes the clot. A first cover 180 that covers the upper side of the working rotor and prevents scattering of mud, dirt and the like by the working rotor, and a second cover that is rotatably connected to the first cover 180 at the connection portion 171. 170. Here, the cover operation assisting mechanism 13 assists the upward rotational movement of the second cover 170.

  As shown in FIG. 16, the cover operation assisting mechanism 13 includes a support member 200, an extendable gas spring 300, a first link member 830, a second link member 550, and a lock member 600. Here, since the support member 200, the gas spring 300, and the lock member 600 are the same as those in FIG. 2, the description thereof is omitted here.

  The first link member 830 has a long hole slide portion 831. A sixth shaft 246 is slidably disposed in the long hole of the slide portion 831. Here, when the sixth shaft 246 is a part of the second link member 550, it can be said that a part of the second link member 550 is slidably disposed along the first link member 830. . In other words, the second link member 550 is linearly movable with the first link member 830 at the fifth portion 335 (where the sixth shaft 246, the first link member 830, and the second link member 550 are connected). It is connected.

  Further, the first link member 830 is rotatably connected to the other side of the support member 200 (a side different from the side where the gas spring 300 is connected to the support member 200). In other words, the first link member 830 is connected to the gas spring 300 at the second portion 332 opposite to the first portion 331 of the gas spring 300. Specifically, the first link member 830 is connected to the second connection portion 311 of the cylinder 310 at the second portion 332. The first link member 830 is rotatably connected to a third shaft 243 that is fixedly or operatively held on the support member 200. Here, a portion where the third shaft 243 and the first link member 830 are connected is referred to as a third portion 333. When the gas spring 300 expands and contracts, the first link member 830 rotates and moves around the third shaft 243 by the action of the second portion 332. In other words, the first link member 830 converts the expansion / contraction operation of the gas spring 300 into a rotation operation that rotates around the third portion 333. Further, the first link member 830 has a lock pin 832 that restricts the rotational movement of the first link member 830 by contacting the lock member 600 in the locked state.

  Similarly to FIG. 2, the second link member 550 is connected to the second cover 170 at the fourth portion 334.

[Operation method of work machine 23]
The operation of the cover operation assisting mechanism 13 and the work machine 23 when the second cover 170 is flipped up will be described with reference to FIGS. 17 and 18. 17 illustrates an operation of raising the second cover 170 with the assistance of the cover operation assisting mechanism 13 in the unlocked state, and FIG. 18 illustrates the second cover 170 in the locked state without assistance of the cover operation assisting mechanism 13. The operation of jumping up will be described. 17 and 18, the second cover 170, the second link member 550, and the first link member 830 drawn with solid lines indicate the state before the second cover flip-up operation, and are drawn with two-dot chain lines. The 2 cover 170, the 2nd link member 550, and the 1st link member 830 show the state after the 2nd cover flip-up operation. Here, for convenience of explanation, only the state of the gas spring 300 before the second cover flip-up operation is shown.

  FIG. 17 is a side view for explaining the operation of flipping up the second cover in the unlocked state in the operation method of the cover operation assisting mechanism according to the fourth embodiment of the present invention. As shown in FIG. 17, when the second cover 170 is flipped upward with the assistance of the cover operation assist mechanism 13, the first link member 830 receives the assisting force from the gas spring 300 and focuses on the third shaft 243. The second link member 550 rotates up counterclockwise, and is lifted upward by the first link member 830 while rotating relative to the first link member 830 about the sixth shaft 246 in a counterclockwise direction. . Here, in the above operation, the relative position of the sixth shaft 246 on the slide portion 831 does not change. That is, during the above-described operation, the sixth shaft 246 is at a position farthest from the third shaft 243 in the slide portion 831.

  As described above, the cover operation assisting mechanism 13 pushes the first link member 830 connected by the second portion 332 and extends the first link member 830 around the third shaft 243 as the gas spring 300 extends rearward. Rotate to counterclockwise. The first link member 830 that has been rotated moves the second link member 550 upward and the second cover 172 is flipped up. In other words, the cover operation assisting mechanism 13 moves the second part 332 in a direction approaching the second cover 170, that is, the gas spring 300 extends in a direction approaching the second cover 170 side, so that the second cover 170 is moved. Jump up.

  FIG. 18 is a side view for explaining the operation of flipping up the second cover in the locked state in the operation method of the cover operation assisting mechanism according to the fourth embodiment of the present invention. That is, the second cover is flipped up without assistance from the cover operation assist mechanism. In the locked state, the first link member 830 does not move, but when the sixth shaft 246 moves inside the slide portion 831, the second link member 550 moves upward and the second cover 170 is flipped up. That is, even if the position of the lock member 600 is in the locked state and the rotational movement of the first link member 830 is restricted, the second cover 170 can be flipped up as shown in FIG. Accordingly, for example, when the unevenness of the ground to be plowed is large and the second cover 170 and the ground collide, the energy of the collision can be dispersed by the second cover 170 being flipped up. In this case, since the cover operation assisting mechanism 13 does not function, the second cover 170 flipped up by the collision tries to return to the original position by its own weight. Accordingly, since the second cover 170 can move up and down following the unevenness of the ground, the normal function of leveling the ground by the second cover 170 is also maintained.

  As described above, the cover operation assisting mechanism 13 according to the fourth exemplary embodiment of the present invention is configured such that the front end of the gas spring 300 is fixed, the gas spring 300 extends rearward, and the first link member 830 is pushed in. Assisting the cover 170 to flip up. Therefore, it is not necessary to arrange a member of the cover operation assisting mechanism in the space above the support member 200 as shown in FIG. 18, and for example, a member such as the frame pipe 700 can be arranged as shown in FIG. That is, a compact cover operation assist mechanism can be realized, and the degree of design freedom can be improved. Moreover, since it is not necessary to use the arm member of Embodiment 1, the number of parts which implement | achieves a cover operation | movement auxiliary | assistant mechanism can be decreased.

  Note that the present invention is not limited to the above-described embodiment, and can be modified as appropriate without departing from the spirit of the present invention.

10, 11, 12, 13: Cover operation assist mechanisms 20, 21, 22, 23: Work machines 170, 172: Second cover 171: Connection portion 173: Slide pin 180: First cover 190: Work rotor 200: Support member 210: frame part 220: support leg 221: fastener 230: spring fixing part 231: spring 241: first axis 242: second axis 243: third axis 244: fourth axis 245: fifth axis 246: sixth axis 247: seventh shaft 300: gas spring 310: cylinder 311: second connection part 320: piston rod 321: first connection part 331: first part 332: second part 333: third part 334: fourth part 335: Fifth part 400: arm members 410, 802, 812, 832: lock pin (second stopper)
420: support portions 500, 810, 830: first link member 510: first stopper 520: locking portion 550: second link member 590, 800: link member 600: lock member 610: lever 620: locking portion 630: Projection 700: Frame pipe 801, 821, 831: Slide part 820: Guide member

Claims (16)

A work having a work claw and rotating the work claw, a first cover covering the work rotor, and a second cover connected to the first cover so as to be rotatable. A cover operation assisting mechanism that is attached to a machine and assists the operation of the second cover,
A support member provided on the first cover;
A stretchable gas spring connected to the front side of the support member;
An arm member connected to the rear side of the support member and converting the expansion and contraction operation of the gas spring into a rotation operation;
A link member that contacts the arm member, moves with the rotational movement of the arm member, and is connected to the second cover;
The gas spring and the arm member are connected at a position closer to the first cover than the rotation center of the arm member,
The cover operation assisting mechanism, wherein the gas cover extends rearward with respect to the front side of the support member, thereby rotating the second cover upward.   2. The cover operation assisting mechanism according to claim 1, wherein the link member has a first stopper that abuts on the arm member that rotates, and rotates as the arm member rotates. The link member includes a first link member and a second link member,
The first link member abuts on the arm member and moves with the rotational movement of the arm member,
The one side of the said 2nd link member is connected to the said 1st link member so that rotation movement is possible, The other side of the said 2nd link member is connected to the said 2nd cover, The Claim 1 characterized by the above-mentioned. The cover operation assisting mechanism according to 2.   The said arm member or the said link member is provided with the shock absorbing material in the at least one part of the location where the said arm member acts on the said link member, The Claim 1 thru | or 3 characterized by the above-mentioned. Cover movement assist mechanism. The arm member has a second stopper,
A lock member that can switch between a locked state that restricts the rotational movement of the arm member and an unlocked state that enables the arm member to rotate by contacting the second stopper; The cover operation assisting mechanism according to any one of claims 1 to 4, wherein The gas spring is
A cylinder,
A piston rod capable of moving inside the cylinder in the expansion and contraction direction of the gas spring,
The cylinder is connected to the arm member;
The piston rod is connected to the support member;
6. The cover operation according to claim 1, wherein the connecting portion of the piston rod to the support member is positioned below the connecting portion of the cylinder to the arm member in the vertical direction. Auxiliary mechanism. A work having a work claw and rotating the work claw, a first cover covering the work rotor, and a second cover connected to the first cover so as to be rotatable. A cover operation assisting mechanism that is attached to a machine and assists the operation of the second cover,
A support member provided on the first cover;
A stretchable gas spring connected to the front side of the support member;
A part of the second cover has a sliding portion that is movably contacted, and is connected to a rear side of the support member, and has a link member that converts the expansion and contraction operation of the gas spring into a rotation operation,
The gas spring and the link member are connected at a position closer to the first cover than the rotation center of the link member;
The cover operation assisting mechanism, wherein the gas cover extends rearward with respect to the front side of the support member, thereby rotating the second cover upward. A work having a work claw and rotating the work claw, a first cover covering the work rotor, and a second cover connected to the first cover so as to be rotatable. A cover operation assisting mechanism that is attached to a machine and assists the operation of the second cover,
A support member provided on the first cover;
A stretchable gas spring connected to the front side of the support member;
A link member that is connected to the rear side of the support member and converts the expansion and contraction operation of the gas spring into a rotation operation;
A guide member fixed to the second cover,
The gas spring and the link member are connected at a position closer to the first cover than the rotation center of the link member;
A part of the link member is provided to be slidable along the guide member,
The cover operation assisting mechanism, wherein the gas cover extends rearward with respect to the front side of the support member, thereby rotating the second cover upward. The link member includes a first link member and a second link member,
The first link member converts the expansion and contraction operation of the gas spring into a rotation operation,
One side of the second link member is connected to the first link member,
The cover operation assisting mechanism according to claim 8, wherein the other side of the second link member is slidably provided along a guide member fixed to the second cover. The gas spring is
A cylinder,
A piston rod capable of moving inside the cylinder in the expansion and contraction direction of the gas spring,
The cylinder is connected to the link member;
The piston rod is connected to the support member;
10. The cover operation according to claim 7, wherein a connecting portion of the piston rod to the support member is positioned below a connecting portion of the cylinder to the link member in a vertical direction. Auxiliary mechanism. A work having a work claw and rotating the work claw, a first cover covering the work rotor, and a second cover connected to the first cover so as to be rotatable. A cover operation assisting mechanism that is attached to a machine and assists the operation of the second cover,
A support member provided on the first cover;
A stretchable gas spring connected to the front side of the support member;
A first link member having a slide portion, connected to the rear side of the support member, and converting the expansion and contraction operation of the gas spring into a rotation operation;
A second link member connected to the second cover and having a part movably contacting the slide part;
The gas spring and the first link member are connected at a position closer to the first cover than the rotation center of the first link member,
The cover operation assisting mechanism, wherein the gas cover extends rearward with respect to the front side of the support member, thereby rotating the second cover upward. The gas spring is
A cylinder,
A piston rod capable of moving inside the cylinder in the expansion and contraction direction of the gas spring,
The cylinder is connected to the first link member;
The piston rod is connected to the support member;
12. The cover operation assisting mechanism according to claim 11, wherein a connecting portion of the piston rod to the support member is located below a connecting portion of the cylinder to the first link member in the vertical direction. A work rotor having a work claw and rotating the work claw;
A first cover covering an upper portion of the working rotor;
A second cover connected to the first cover so as to be rotatable and movable;
A cover operation assisting mechanism for assisting the operation of the second cover,
The cover operation assisting mechanism is
A support member provided on the first cover;
A stretchable gas spring connected to the front side of the support member;
An arm member connected to the rear side of the support member and converting the expansion and contraction operation of the gas spring into a rotation operation;
A link member that contacts the arm member, moves with the rotational movement of the arm member, and is connected to the second cover;
The gas spring and the arm member are connected at a position closer to the first cover than the rotation center of the arm member,
The working machine, wherein the gas spring extends rearward with respect to the front side of the support member, thereby rotating the second cover upward. A work rotor having a work claw and rotating the work claw;
A first cover covering an upper portion of the working rotor;
A second cover connected to the first cover so as to be rotatable and movable;
A cover operation assisting mechanism for assisting the operation of the second cover,
The cover operation assisting mechanism is
A support member provided on the first cover;
A stretchable gas spring connected to the front side of the support member;
A part of the second cover has a sliding portion that is movably contacted, and is connected to a rear side of the support member, and has a link member that converts the expansion and contraction operation of the gas spring into a rotation operation,
The gas spring and the link member are connected at a position closer to the first cover than the rotation center of the link member;
The working machine, wherein the gas spring extends rearward with respect to the front side of the support member, thereby rotating the second cover upward. A work rotor having a work claw and rotating the work claw;
A first cover covering an upper portion of the working rotor;
A second cover connected to the first cover so as to be rotatable and movable;
A cover operation assisting mechanism for assisting the operation of the second cover,
The cover operation assisting mechanism is
A support member provided on the first cover;
A stretchable gas spring connected to the front side of the support member;
A link member connected to the rear side of the support member and converting the expansion and contraction operation of the gas spring into a rotation operation ;
The gas spring and the link member are connected at a position closer to the first cover than the rotation center of the link member;
A part of the link member is provided to be slidable along a guide member fixed to the second cover,
The working machine, wherein the gas spring extends rearward with respect to the front side of the support member, thereby rotating the second cover upward. A work rotor having a work claw and rotating the work claw;
A first cover covering an upper portion of the working rotor;
A second cover connected to the first cover so as to be rotatable and movable;
A cover operation assisting mechanism for assisting the operation of the second cover,
The cover operation assisting mechanism is
A support member provided on the first cover;
A stretchable gas spring connected to the front side of the support member;
A first link member having a slide portion, connected to the rear side of the support member, and converting the expansion and contraction operation of the gas spring into a rotation operation;
A second link member connected to the second cover and having a part movably contacting the slide part;
The gas spring and the first link member are connected at a position closer to the first cover than the rotation center of the first link member,
The working machine, wherein the gas spring extends rearward with respect to the front side of the support member, thereby rotating the second cover upward.

Images