JP4442920B2 - Glen tank lock mechanism in combine - Google Patents

Description

  The present invention relates to a lock mechanism for a Glen tank in a combine.

Conventionally, there is a combine in which a glen tank for temporarily storing grains after threshing is provided on the machine body so as to be freely opened and closed. And the model which comprised the lock mechanism which fixes the above-mentioned Glen tank to the body side in the state where it closed is composed of the upper lock part on the upper side of the Glen tank and the lower lock part on the lower side of the Glen tank is known ( For example, see Patent Document 1).
JP 2001-320951 A

  However, since the lock mechanism does not restrict the movement of the Glen tank in the vertical direction relative to the traveling machine body, the Glen tank may rattle in the vertical direction when the traveling machine body travels. In addition, since it is necessary to lock the glen tank by operating each of the upper and lower lock sections, the upper or lower lock is not performed due to forgetting to operate one of the lock sections. I was rattling. An object of the present invention is to provide a lock mechanism for a grain tank in a combine that can prevent the grain tank from rattling on a traveling machine body and can be fixed in a closed state.

In order to solve the above problems, the grain tank lock mechanism of the combine according to the present invention is provided with a glen tank 6 for temporarily storing grain after threshing in the body 1 so as to be openable and closable, and the glen tank 6 is closed. The lock mechanism 14 is fixed to the machine body 1 side in the state where the lock mechanism 14 is combined with the upper lock portion 22 on the upper side of the Glen tank 6 and the lower lock portion 23 on the lower side of the Glen tank 6. , the lower locking portions 23, the slidable regulating lever 24 back and forth, and consists杆受only 26 for regulating lever 24 by the longitudinal slide is inserted and removed, by insertion into杆受only 26 of regulating lever 24, Glen The first feature is that the tank 6 is configured to restrict vertical movement and rotation in the rotation direction.

Further , the operation unit 37 of the upper lock unit 22 and the operation unit 28 of the lower lock unit 23 are brought close to each other so that they can be operated simultaneously , and both the operation units 28 and 37 are simultaneously gripped to operate both the operation units 28 and 37 together. The second feature is that the upper lock portion 22 and the lower lock portion 23 are released by the above.

  According to the structure of the present invention configured as described above, the Glen tank is fixed to the machine body side in the closed state by the lock mechanism, and when the closed state is fixed, the restriction rod of the lower lock portion is inserted into the saddle receiver. Therefore, the vertical movement and the rotation in the rotation direction are restricted. As a result, the Glen tank is fixed to the traveling body in a closed state without rattling, preventing the Glen tank from bouncing up and down during the traveling of the combine and preventing unlocking caused by the bounce. effective.

  In addition, by providing the operation part of the upper lock part and the operation part of the lower lock part close to each other so that they can be operated simultaneously, the lock when the glen tank is closed by the upper and lower lock parts and the release of the lock are operated together. The operation of the upper lock part or the lower lock part can be prevented from being forgotten, and the Glen tank is locked to the traveling machine body at the top and bottom, and is fixed to the traveling machine body in a closed state without rattling. .

  FIG. 1 is a plan view of a combine that employs the locking mechanism of the present invention. A pre-processing unit 2 is provided in front of the machine body 1 so as to be movable up and down. A driver's seat 3 is provided on the right front side of the body 1. On the side of the driver's seat 3, a threshing unit 4 is provided at the rear. A Glen tank 6 is provided behind the driver's seat 3 so as to be located on the side of the threshing section 4. The grain after threshing is input to the grain tank 6 from the threshing unit 4, and the grain after threshing by the threshing unit 4 is temporarily stored.

  The machine body 1 is provided with a discharge auger 7 for discharging the grains in the grain tank 6. As shown in FIG. 2, the discharge auger 7 is connected to a vertical spiral cylinder 8 connected to the Glen tank 6 side behind the Glen tank 6 and to an upper end side of the vertical spiral cylinder 8 so as to be swingable up and down. It consists of a horizontal spiral tube 9. As shown in FIGS. 2 and 3, an L-shaped joint body 11 is provided on the back surface of the Glen tank 6, and a vertical spiral cylinder 8 is rotatably inserted into the upper end side of the joint body 11. .

  When the discharge auger 7 is actuated, the grain is transported from the grain tank 6 to the vertical spiral cylinder 8 via the joint 11, and the grain conveyed to the vertical spiral cylinder 8 is further inherited by the horizontal spiral cylinder 9. The grain in the Glen tank 6 is sent to the horizontal spiral tube 9 through the above-mentioned path and discharged from the tip of the horizontal spiral tube 9.

  A pipe 12 projects downward from the joint body 11. The joint body 11 and the pipe 12 are integral. The lower end of the pipe 12 is rotatably inserted into a fulcrum shaft 13 protruding from the body frame 1a. As a result, the Glen tank 6 rotates about the fulcrum shaft 13 as an axis so that the front side opens outward of the machine body 1 as shown in FIG.

  However, a locking mechanism 14 is provided on the front side of the Glen tank 6, and the normal Glen tank 6 is configured as shown in FIG. 1 by locking the front side of the Glen tank 6 to the body frame 1 a side by the locking mechanism 14. As shown in FIGS. 2 and 3, it is fixed to the body 1 side in the closed state.

  Therefore, when the Glen tank 6 is opened in the open state as shown in FIG. 4, it is necessary to unlock the Glen tank 6 by the lock mechanism 14. As described above, the maintenance of the combine can be easily performed by opening the Glen tank 6 in the open state.

  As shown in FIGS. 3, 5, and 6, below the inner surface 6 </ b> I of the Glen tank 6, a roller 16 that rotates in the left-right direction protrudes toward the inside of the machine body 1 through a bracket 17 and an arm 18. It is attached. The roller 16 is provided so that the lower end is the same height as the lower end surface of the bracket 17.

  On the other hand, when the roller tank 16 is positioned on the machine frame 1a when the opened Glen tank 6 is closed in the machine frame 1a, a guide rail 19 that contacts the roller 16 and guides the movement of the roller 16 is provided. Is provided. The outer surface of the guide rail 19 constitutes a guide surface 19a of the roller 16 inclined so as to become lower toward the outer side. The guide rail 19 is integrally provided on a base plate 21 attached to the body frame 1a side.

  When the Glen tank 6 is closed from the open state to the closed state, the front side of the Glen tank 6 gradually approaches the body frame 1a. Accordingly, as shown in FIG. 5, when the roller 16 faces the guide rail 19, the roller 16 rolls on the upper surface of the guide rail 19, and the Glen tank 6 is closed as shown in FIG. 6. Thereafter, the glen tank 6 is locked by the lock mechanism 14 so that the glen tank 6 is fixed to the airframe 1 in a closed state.

  At this time, as described above, the outer surface of the guide rail 19 is an inclined guide surface 19a, and even when the front side of the Glen tank 6 is lowered in the cantilever open state, the roller 16 is The roller 16 is guided to the upper surface of the guide rail 19 by rolling the roller 16 in contact with the guide surface 19a without colliding with the guide rail 19, and accordingly, the Glen tank 6 is returned to the height in the closed state, Closed. The Glen tank 6 can be easily opened and closed by the roller 16 and the guide rail 19 (particularly the guide surface 19a).

  The structure of the lock mechanism 14 will be described. As shown in FIG. 3, the lock mechanism 14 includes an upper lock portion 22 on the upper side of the Glen tank 6 and a lower lock portion 23 on the lower side of the Glen tank 6. As shown in FIG. 7, the lower lock portion 23 is formed on the base plate 21 and a restriction rod 24 formed of an L-shaped pipe inserted into the bracket 17 so as to be rotatable and slidable back and forth. 6 and a flange receiving hole 26 into which the restriction rod 24 is inserted in the closed state.

  The restriction rod 24 has an end protruding forward from the bracket 17 as an insertion end 27 into the flange receiving hole 26, and an end opposite to the insertion end 27 as a handle 28. The insertion end 27 side slides vertically with respect to the bracket 17. Washers 29 and 31 are attached to both sides of the restriction rod 24 with the bracket 17 interposed therebetween. A compression spring 32 is provided between the washer 31 on the insertion end 27 side and the bracket 17 so as to be fitted on the restriction rod 24.

  The restriction rod 24 is urged forward by the compression spring 32 (toward the flange receiving hole 26 side). However, it is positioned (sliding restricted) by the washer 29 on the handle 28 side. On the other hand, the front of the base plate 21 is bent upward to form a front surface 33. A reinforcing plate 34 to which a collar 35 is fixed is provided on the outer surface (front side) of the front surface 33, and the aforementioned collar receiving hole 26 is formed so as to pass through the collar 35 from the front surface 33 to the reinforcing plate 34. Yes.

  The front surface 33 of the base plate 21 is curved so that the outer side is turned upward and upward to form a guide surface 33 a of the restriction rod 24. The restriction rod 24 is biased forward as described above. When the Glen tank 6 is closed from the open state to the closed state, the insertion end 27 side of the restriction rod 24 comes into contact with the guide surface 33 a of the base plate 21. Due to the contact between the restriction rod 24 and the guide surface 33 a, the restriction rod 24 is guided to the inner (rear side) surface of the front surface 33 while being pushed backward against the urging force of the compression spring 32.

  As the Glen tank 6 swings, the insertion end 27 of the restriction rod 24 continuously contacts the inner surface of the front surface 33, and the restriction rod 24 projects forward by the biasing force of the compression spring 32 at the position of the flange receiving hole 26. The insertion end 27 is inserted into the flange receiving hole 26. Both positions are set so that when the glen tank 6 is closed, the restriction rod 24 is inserted into the rod receiving hole 26.

  As described above, the restriction rod 24 is automatically inserted into the rod receiving hole 26 when the Glen tank 6 is switched from the open state to the closed state. Accordingly, when the Glen tank 6 is closed, the lower side of the Glen tank 6 is locked to the body 1 side by the lower lock portion 23.

  On the other hand, as shown in FIG. 8, holding the handle 28 of the restriction rod 24 and pulling the restriction rod 24 rearward against the urging force of the compression spring 32, The insertion can be released (the restriction rod 24 is pulled out from the rod receiving hole 26). By pulling out the restriction rod 24 from the rod receiving hole 26, the lower side of the Glen tank 6 becomes free with respect to the airframe 1 side.

  In the vicinity of the rear side of the handle 28 of the restriction rod 24, an operation handle 37 of the upper lock portion 22 is provided via a bracket 36 so as to be swingable up and down. Since the operation handle 37 has a fixed position in the front-rear direction, when the handle 28 of the restriction rod 24 is gripped together with the operation handle 37, the restriction rod 24 is pulled rearward and the restriction rod 24 is pulled out of the rod receiving hole 26. Pulled out.

  As shown in FIG. 9, the upper lock portion 22 includes an L-shaped bracket 38 in a plan view provided on the upper side of the inner surface 6I of the Glen tank 6 so as to protrude inward, and the bracket 38. When the glen tank 6 is in a closed state, the lock plate 39 that is pivotally supported by the pivot shaft 40 via the fulcrum shaft 40 and the engagement recess 41 that is open on the end side provided on the protruding end side of the bracket 38 are formed. The lock pin 42 is inserted from the opening.

  The lock plate 39 is provided with a lock recess 43 that opens upward. A tension spring 44 is provided between the lock plate 39 and the bracket 38, and the lock plate 39 is biased upward by the tension spring 44. The maximum rocking angle upward of the lock plate 39 is set by contact between the lock pin 39 and the mounting pin 46 of the tension spring 44 on the bracket 38 side.

  The lock plate 39 and the aforementioned operation handle 37 are connected by a wire 47. When the operation handle 37 is swung upward, the lock plate 39 is swung downward against the urging force of the tension spring 44 as shown in FIG.

  The front end of the lock plate 39 protrudes from the bracket 38 toward the inside of the airframe 1. A leading end side of the upper end surface of the lock plate 39 is a guide surface 39a inclined downward. When the Glen tank 6 is closed from the open state to the closed state, the lock pin 42 comes into contact with the guide surface 39a of the lock plate 39, and the lock plate 39 resists the urging force of the tension spring 44 as the Glen tank 6 swings. Is swung downward.

  When the Glen tank 6 is closed, the lock pin 42 is engaged with the engagement recess 41 of the bracket 38. When the lock pin 42 is engaged with the engagement recess 41, the lock plate 39 is elastically swung upward by the tension spring 44, and the lock recess 43 is fitted to the lock pin 42 from below. As a result, the lock pin 42 is prevented from coming off the engagement recess 41 of the bracket 38.

  As described above, the insertion of the lock pin 42 into the engagement recess 41 and the restriction of the lock pin 42 coming out of the engagement recess 41 by the lock recess 43 are automatically performed when the glen tank 6 is switched from the open state to the closed state. To be done. As a result, when the Glen tank 6 is closed, the upper side of the Glen tank 6 is locked to the body 1 side by the upper lock portion 22.

  The operation handle 37 is swung upward, and the lock plate 39 is swung downward against the urging force of the tension spring 44, whereby the engagement recess 41 of the lock pin 42 is shown in FIG. The slipping out of the tank is allowed and the glen tank 6 is unlocked by the upper lock portion 22. Therefore, as described above, if the lock of the glen tank 6 by the lower lock portion 23 is released, the glen tank 6 can be opened from the closed state to the open state.

  As described above, the operation handle 37 and the handle 28 of the restriction rod 24 are arranged close to each other, and the unlocking of the Glen tank 6 by the lower lock portion 22 is simply performed by connecting the operation handle 37 and the handle 28 of the restriction rod 24. Since the operation is performed by grasping at the same time, the operation handle 37 and the handle 28 of the restricting rod 24 are grasped at the same time. Thereafter, as shown in FIG. By swinging upward, the upper lock portion 22 and the lower lock portion 23 can be easily released simultaneously with one operation (one action), and the glen tank 6 can be opened.

  As a result of the above-described automatic locking of the lower side of the Glen tank 6 by the lower lock portion 22 and the automatic locking of the lower side of the Glen tank 6 by the lower lock portion 23, the Glen tank 6 is closed to the body 1 In addition to being securely fixed, the upper lock portion 22 and the lower lock portion 23 can be released simultaneously and easily with one action.

  At this time, since the lower lock portion 23 has a structure in which the restriction rod 24 is inserted into the flange receiving hole 26, the lower side of the Glen tank 6 is restricted from moving up and down and rotating in the rotation direction in the locked state. Further, since the upper lock portion 22 has a structure in which the lock recess 43 of the lock plate 39 restricts the lock pin 42 from being inserted into the engagement recess 41 in the rotating direction, the upper side of the Glen tank 6 is also in the locked state. Vertical movement and rotation in the rotation direction are restricted.

  Further, since the top and bottom of the glen tank 6 are locked only by turning the glen tank 6 to the closed state, forgetting to lock is prevented, and the glen tank 6 is always locked in the above state in the up and down position.

  As a result, the Glen tank 6 is fixed to the airframe 1 in a closed state without rattling in the up-and-down position, and the up-and-down bounce of the Glen tank 6 during the traveling of the combine is prevented. As a result, the unlocking of the Glen tank 6 accompanying the up and down bounce is prevented, and the Glen tank 6 is stably supported by the body 1.

  The above-mentioned base plate 21 is detachably attached to the body frame 1a side. A flange receiving hole 26 and a guide rail 19 are attached to the base plate 21, and a restriction rod 24 and a roller 16 are provided on the bracket 17 on the Glen tank 6 side. For this reason, if the mounting height of the base plate 21 with respect to the body frame 1a is set by sandwiching a shim or the like between the base plate 21 and the body frame 1a, the height position of the flange receiving hole 26 with respect to the restriction rod 24 and the roller 16 The height position of the guide rail 19 is adjusted at a time, so that the Glen tank 6 can be smoothly swung and locked by the lower lock portion 23.

It is a top view of a combine. It is a principal part perspective view which shows the attachment state to the body frame of a Glen tank. It is a principal part perspective view which shows the rotation fulcrum part of a Glen tank. It is a principal part top view which shows the open state of a Glen tank. It is a principal part front view which shows the relationship between a roller and a rail in the process which makes a Glen tank closed. It is a principal part front view which shows the relationship between a roller and a rail when a Glen tank is a closed state. It is a principal part perspective view which shows a lower locking part. It is a principal part perspective view which shows the cancellation | release state of a lower lock part. It is a principal part perspective view which shows an upper locking part. It is a principal part perspective view which shows the cancellation | release state of an upper lock part. It is a principal part perspective view which shows the cancellation | release operation state of both lock parts.

Explanation of symbols

1 Airframe 6 Glen tank 14 Lock mechanism 22 Upper lock part 23 Lower lock part 24 Restriction rod 26 杆 Reception hole (杆 reception)
28 Handle (operation part)
37 Operation handle (operation unit)

Claims (2)

A lock mechanism that temporarily holds a grain tank (6) for storing grains after threshing is provided on the machine body (1) so as to be freely openable and closable, and is fixed to the machine body (1) side with the grain tank (6) closed. (14), the lock mechanism (14) is composed of an upper lock portion (22) on the upper side of the Glen tank (6) and a lower lock portion (23) on the lower side of the Glen tank (6). in, the lower locking portion (23), constructed from the longitudinal slidable regulating lever (24),杆受only (26) of regulating lever by the longitudinal slide (24) is inserted and removed, regulating lever (24 The lock mechanism of the Glen tank in the combine which has a structure in which the vertical movement of the Glen tank (6) and the rotation in the rotation direction are restricted by the insertion of the) into the rod receiver (26). The operation part (37) of the upper lock part (22) and the operation part (28) of the lower lock part (23) are brought close to each other so that they can be operated simultaneously , and both the operation parts (28) and (37) are gripped simultaneously. The lock mechanism of the Glen tank in the combine according to claim 1, wherein the upper lock portion (22) and the lower lock portion (23) are released by operating both the operation portions (28), (37) .

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