JP2005264995A - Connecting tool of cable handling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively interrupt the vibration transmitted from a transmission at operating of an operating lever, and to prevent an operating stroke of the operating lever from abnormally enlarging even at a quick changing gear. <P>SOLUTION: A connecting tool 21 of a cable handling device connects the other end of a cable 18 wired to vehicle bodies 10b, 12 to the transmission 13 by connecting one end to the operating lever 17 installed in a cabin. There is provided with a plate-like resilient body 22, in which a through hole 22a to insert a connecting pin 24 installed in the transmission 13 is formed in the thickness direction, and through holes 22b, 22b are bored from the circumference toward the through hole 22a, rigid bar members 26, 26 inserted in the through holes 22b, 22b to face the through hole 22a at one end, having the length shorter than the depth of the inserted holes 22b, 22b, and a ring member 27, in which the other end of the bar members 26, 26 faces the inner perimeter and surrounds the resilient body 22, and the other end of the cable 18 is connected to the circumference. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a connector for a cable-type operating device that connects a cable connected to an operating rod to a transmission.

2. Description of the Related Art Conventionally, a cable-type operation device that connects an operation rod and a fork operation shaft provided in a transmission with a control cable is known as an operation device for a transmission in a vehicle such as a truck. The control cable is routed in the vehicle body so as to move in the longitudinal direction by operating the operating rod. With this cable-type operating device, the longitudinal movement of the cable by operating the operating rod is slid on the fork operating shaft in the vicinity of the transmission. Or it is converted into a rotational motion.
However, in the conventional cable-type operation device, since the operation rod and the transmission are directly connected by the control cable, when the driver tries to operate the operation rod while holding it with the hand, it is generated inside the transmission. The vibration is transmitted to the operating rod through the control cable, and there is a problem that the driver who holds it feels uncomfortable due to the vibration of the operating rod. In order to eliminate this point, an elastic body for blocking vibration transmitted from the transmission is interposed between the control cable and the fork operation shaft provided in the transmission, and the normal operation is performed within the elastic range. (See, for example, Patent Document 1 and Patent Document 2).
Japanese Utility Model Publication No. 60-56817 (FIG. 1) Japanese Utility Model Publication No. 3-105713 (Fig. 1)

However, the fork operation shaft of the transmission slides in the direction of the operation shaft to select a transmission gear inside the transmission, and in that state, the fork operation shaft rotates around its axis to select the selected transmission gear. It is designed to mesh. For this reason, even if the control cable is connected to the operation rod via the elastic body and normal operation is performed within the elastic range, there is a special situation that requires a sudden shift. When the operating rod is operated relatively quickly and with a relatively large force, the elastic body may be deformed beyond the elastic limit, and the elastic body may be damaged. Even if the elastic body does not break, the amount of deformation of the elastic body increases as compared to the amount of deformation during normal operation, and the operation of the operation rod is not performed until the elastic body is sufficiently elastically deformed. There is a problem that the operation stroke of the operation rod is abnormally enlarged as compared with the stroke in the normal operation without being connected to the movement of the cable.
An object of the present invention is to provide a connecting member for a cable-type operating device that effectively cuts off vibrations transmitted from the transmission during operation of the operating rod and does not abnormally increase the operating stroke of the operating rod even during sudden shifting. It is to provide.

In the first aspect of the invention, as shown in FIG. 6, one end is connected to an operating rod 17 provided in the vehicle interior, and the other end of the cable 18 routed in the vehicle bodies 10 b and 12 is connected to the transmission 13. It is a connector of a cable type operating device.
As shown in FIG. 1, the characteristic configuration is that through holes 22a for inserting connecting pins 24 provided in the transmission 13 are formed in the thickness direction, and through holes 22b and 22b from the outer periphery toward the through holes 22a. A plate-like elastic body 22 formed with a rigid rod-like member 26, 26 having a length shorter than the depth of the insertion holes 22b, 22b inserted into the insertion holes 22b, 22b so that one end faces the through-hole 22a; The rod-shaped members 26, 26 are provided with a ring member 27 that surrounds the elastic body 22 so that the other end of the rod-like member 26 faces the inner peripheral surface and the other end of the cable 18 is connected to the outer periphery.

In the connector of the cable type operation device described in claim 1, the other end of the control cable 18 is connected to the transmission 13, but the ring member 27 attached to the other end of the control cable 18 and the transmission 13 are connected. Since the plate-like elastic body 22 is interposed between the connecting pin 24 and the vibration in the connecting pin 24 of the transmission 13 is absorbed by the deformation of the elastic body 22. For this reason, the vibration of the transmission 13 is not transmitted to the ring member 27, and it is possible to effectively prevent the vibration from being transmitted directly to the operating rod 17 via the control cable 18.
On the other hand, when there is a special situation that requires a sudden shift, if the operating rod is operated relatively quickly and with a relatively large force, the operating rod 17 is connected to the operating rod 17 via the control cable 18. The ring member 27 moves in the axial direction of the control cable 18 and the elastic body 22 is deformed. When the elastic body 22 is elastically deformed, the other end of the rigid rod-shaped member 26 directly contacts the inner peripheral surface of the ring member 27. When the operating rod 17 is further moved, the movement of the ring member 27 is directly transmitted to the rigid rod member 26 and directly to the transmission 13 via the connecting pin 24. As a result, the elastic body 22 is prevented from being damaged by deformation exceeding the elastic limit, and the operation stroke of the operation rod 17 is prevented from being abnormally enlarged.

The invention according to claim 2 is the invention according to claim 1, in which the cylindrical body 23 having an inner diameter into which the connecting pin 24 can be inserted and having a length equal to or greater than the thickness of the elastic body 22 is formed in the through hole 22a. A pair of washers 28, 28 that are inserted and extend in the axial direction of the rod-shaped members 26, 26, the other end of the cable 18 is connected to the outer periphery of the ring member 27, and sandwich the ring member 27 together with the elastic body 22 from both sides in the thickness direction. Is a connector for a cable-type operating device attached to both ends of the cylindrical body 23.
In the connector of the cable type operation device according to the second aspect, since the cylindrical body 23 is inserted into the through hole 22a and the pair of washers 28, 28 are attached to both ends thereof, the pair of washers 28, 28 is a ring. It is possible to prevent the ring member 27 from being detached from the elastic body 22 by sandwiching the member 27 together with the elastic body 22 from both sides in the thickness direction. Further, since the other end of the cable 18 is connected to the outer periphery of the ring member 27 by extending in the axial direction of the rod-shaped members 26, 26, a rigid rod shape is formed on the inner peripheral surface of the ring member 27 by moving in the axial direction of the control cable 18. The other end of the member 26 can be brought into direct contact.

The invention according to claim 3 is the invention according to claim 2, wherein the insertion holes 22b, 22b are formed so as to communicate with the through hole 22a from the outer periphery of the elastic body 22, and one end of each of the rigid rod-like members 26, 26 is provided. The elastic body 22 is deformed by the axial movement of the other end of the cable 18 so as to be in contact with the outer peripheral surface of the cylindrical body 23, and the rod-shaped member 26, 26 is a connector for a cable-type operating device that is configured such that the other end of 26 abuts.
In the connector of the cable type operation device described in claim 3, when the elastic body 22 is deformed, the other end of the rigid rod-like members 26 and 26 whose one end contacts the outer peripheral surface of the cylindrical body 23 is the inner periphery of the ring member 27. Since it is in contact with the surface, when the operating rod 17 is operated relatively quickly and with a relatively large force, the movement of the ring member 27 can be linked to the movement of the cylinder 23 and transmitted directly to the transmission 13. .

The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein two insertion holes 22b and 22b communicating with the through-holes from both diametrical sides of the elastic body 22 are respectively formed and elastic. This is a connector for a cable-type operating device in which rigid rod-like members 26 and 26 are inserted into the insertion holes 22b and 22b from both sides in the diameter direction of the body 22, respectively.
In the connector of the cable type operating device according to the fourth aspect, since the two insertion holes 22b and 22b are respectively formed in the diameter direction of the elastic body 22 and the rigid rod-like members 26 and 26 are inserted, the cable 18 The reciprocating movement in the axial direction can be reliably linked to the movement of the cylinder 23 and directly transmitted to the transmission 13.

In the connector of the cable type operation device of the present invention, a plate-like elastic member having a through hole for inserting a connecting pin provided in the transmission formed in the thickness direction and an insertion hole from the outer periphery toward the through hole is formed. A body, a rigid rod-like member inserted into the insertion hole so that one end faces the through hole, and a length shorter than the depth of the insertion hole, and an elastic body surrounding the other end of the rod-like member facing the inner peripheral surface Since the other end of the cable is provided with a ring member connected to the outer periphery, the vibration at the connecting pin of the transmission can be absorbed by the deformation of the elastic body.
On the other hand, when the operating rod is operated relatively quickly and with a relatively large force, the ring member connected via the control cable moves in the axial direction of the control cable, and the elastic body is deformed. The other end of the rigid rod-shaped member directly contacts the peripheral surface, and the movement of the ring member can be linked to the movement of the connecting pin via the rigid rod-shaped member. For this reason, the operation of the operation rod can be reliably transmitted to the transmission while preventing the breakage of the elastic body and the expansion of the operation stroke of the operation rod.

  In this case, the cylindrical body is inserted into the through-hole, and the other end of the cable is connected to the outer periphery of the ring member by extending in the axial direction of the rod-shaped member, and a pair of washers that sandwich the ring member from both sides in the thickness direction together with the elastic body. If attached to both ends of the cylindrical body, the ring member can be prevented from detaching from the elastic body, and the other end of the rigid rod-shaped member can be brought into direct contact with the inner peripheral surface of the ring member by moving in the axial direction of the control cable. it can. Further, the insertion hole is communicated with the through hole so that one end of the rigid rod-shaped member is brought into contact with the outer peripheral surface of the cylindrical body, and the elastic body is deformed by the axial movement of the other end of the cable, and the rod-shaped member is If the other end of the member is abutted, when the operating rod is operated relatively quickly and with a relatively large force, the movement of the ring member is reliably linked to the movement of the cylinder and directly transmitted to the transmission. be able to. Furthermore, if two insertion holes are formed in the diameter direction of the elastic body and a rigid rod-like member is inserted, the reciprocating movement in the axial direction of the cable can be linked to the movement of the cylinder and transmitted directly to the transmission. it can.

Next, the best mode for carrying out the present invention will be described with reference to the drawings.
As shown in FIG. 7, the vehicle 10 includes an engine 11 for causing the vehicle 10 to travel. The vehicle in this embodiment is a cab overtrack 10, and the engine 11 is mounted between a pair of side members 12 (only one is shown) which is a vehicle body below the cab 10a. The engine 11 includes a transmission 13 for effectively demonstrating the output of the engine 11 according to the traveling state of the vehicle 10. As shown in FIG. 6, a plurality of transmission gears are arranged on the main shaft (not shown) inside the transmission 13, and a desired transmission gear can be selected by the shifter lever 13a. The shifter lever 13a is operated by a fork operating shaft 14. The fork operating shaft 14 slides in the axial direction and is pivotably mounted around the axis, and is shifted through the shifter lever 13a by sliding or rotating. Configured to perform gear selection.

A first lever 14a for rotating the operation shaft 14 about its axis is fixed to the operation shaft 14 via a fixing portion 14d. The operation shaft 14 is moved by moving the tip of the first lever 14a back and forth. It is designed to rotate. Further, an auxiliary lever 14e is erected on the opposite side of the fixing portion 14d so as to be coaxial with the first lever 14a, and a rod of the power cylinder 14f is connected to the tip of the auxiliary lever 14e. When the operation cylinder 14 is to be rotated via the first lever 14a, the power cylinder 14f is operated by the rod 14c of the cylinder 14f being extended or contracted in the direction to be rotated to ensure the operation. It is designed to reduce the burden.
The transmission 13 is provided with a second lever 16 for sliding the operation shaft 14 in the axial direction. The second lever 16 is machined into an L shape, and its substantially center is pivotally supported by a pivoting member 13 c provided in the transmission 13. The operation shaft 14 is provided with a stud 14g that can rotate around the shaft and cannot move in the axial direction. A fitting portion 16a that fits the stud 14g is formed at the tip of the second lever 16. The second lever 16 is configured to be slidable on the operating shaft 14 by the fitting portion 16a moving by rotating to move the stud 14g.

  As shown in FIGS. 6 and 7, an operation for operating the operation shaft 14 in the select direction in the direction of sliding in the axial direction and the shift direction in the direction of rotating around the shaft center is provided in the cabin inside the cab 10 a. A gutter 17 is provided. One end of two control cables 18 is connected to the operating rod 17 and the other end of the two control cables 18 is connected to the transmission 13. The control cable 18 is routed to the vehicle bodies 10b and 12 while being covered with the conduit 18b, and the control cable 18 is configured to move in the longitudinal direction by the operation of the operation rod 17. Each control cable 18 is gently folded at the front portion of the cab 10a and routed to the vehicle bodies 10b and 12.

  One end of each control cable 18 is connected to the operating rod 17, and the other end of each control cable 18 is connected to the tip of the first lever 14 a and one end of the second lever 16. When the operating rod 17 is moved in the vehicle width direction F, which is the selection direction, as shown by the broken line arrow in FIG. 6, one control cable 18 moves in the longitudinal direction inside the conduit 18b to rotate the second lever 16, The operation shaft 14 is configured to be slidable by the rotation of the second lever 16. When the operating rod 17 is moved in the front-rear direction G, which is the shift direction, the other control cable 18 moves in the longitudinal direction inside the conduit 18b to rotate the first lever 14a, and the rotation of the first lever 14a The operation shaft 14 is configured to rotate. Then, the other end of the control cable 18 is connected to the transmission 13 via the connector 21 of the present invention. Since the connector 21 that connects the other end of the control cable 18 and the tip of the first lever 14a and the connector 21 that connects the other end of the control cable 18 and one end of the second lever 16 have the same structure. The connector 21 will be described below as a representative for connecting the other end of the control cable 18 and one end of the second lever 16.

  As shown in FIG. 1 to FIG. 3, the connector 21 of the cable type operating device of the present invention is inserted into the plate-like elastic body 22 having a through hole 22 a formed in the center in the thickness direction and the through hole 22 a. A cylindrical body 23 having a possible outer diameter is provided. The elastic body 22 is a relatively thick disk made of a rubber obtained by appropriately vulcanizing a synthetic rubber such as a diene, natural rubber, a resin elastomer or the like, and an anti-aging agent as appropriate. Insertion holes 22b and 22b are formed toward the through hole 22a. The elastic body 22 is not limited to a circular plate and may be a polygonal plate. The insertion holes 22b and 22b in this embodiment are square holes, and two insertion holes 22b and 22b are formed so as to communicate with the through-holes 22a from both sides in the diameter direction of the elastic body 22, and the respective insertion holes 22b. , 22b are formed so as to communicate with the through hole 22a from the outer periphery of the elastic body 22. Further, as shown in FIG. 3, fan-shaped long holes 22c and 22c are formed in the thickness direction on both sides of the elastic body sandwiching the insertion holes 22b and 22b, respectively, where the insertion holes 22b and 22b are not formed. Is done. The long holes 22c and 22c are for facilitating the deformation of the elastic body 22, and are formed in a fan shape centered on the through hole 22a.

  As shown in FIG. 3, the outer diameter cylindrical body 23 that can be inserted into the through hole 22 a has an inner diameter that allows the connection pin 24 of the second lever 16 (FIG. 6) provided in the transmission 13 to be inserted. The connecting pin 24 is a metal pin with a circular cross section having a diameter slightly smaller than the inner diameter of the cylindrical body 23, and a first male screw portion 24 a for screwing to the second lever 16 is formed at one end. The connecting pin 24 is formed with a hexagonal section 24b that is continuous with the first male threaded portion 24a and engages with a spanner that screws the first male threaded portion 24a onto the first lever 14a. 24c is formed. The cylindrical body 23 having an inner diameter into which the connecting pin 24 can be inserted has a thickness equal to or greater than the thickness of the plate-like elastic body 22, specifically equal to or greater than the thickness of the elastic body 22. The length is 1.2 times, preferably 1.02.

  As shown in FIGS. 1 to 3, the connector 21 of the cable type operating device of the present invention is inserted into two insertion holes 22 b and 22 b formed from both sides in the diameter direction of the elastic body 22 toward the through hole 22 a. Further, rigid rod-like members 26, 26 and a ring member 27 fitted into the elastic body 22 so as to surround the elastic body 22 are further provided. The rigid rod-like members 26, 26 are square-shaped metal rods having a cross-sectional shape equal to or slightly smaller than the cross-sectional shape of the insertion holes 22b, 22b, and are formed to have a length slightly shorter than the depth of the insertion holes 22b, 22b. Is done. The rigid rod-shaped members 26 and 26 are inserted into the insertion holes 22b and 22b from both sides in the diameter direction of the elastic body 22, and inserted so that one end of the rod-shaped members 26 and 26 is in contact with the outer peripheral surface of the cylindrical body 23. Is done. On the other hand, the ring member 27 surrounding the elastic body 22 is fitted into the elastic body 22, and in this state, the other ends of the rod-like members 26 and 26 face the inner peripheral surface thereof. The other end of the cable 18 is connected to the outer periphery of the ring member 27 extending in the axial direction of the rod-shaped members 26 and 26. When the other end of the cable 18 moves in the axial direction, as shown in FIGS. 4 and 5, the ring member 27 moves together with it and the elastic body 22 is deformed, and a rod-like member is formed on the inner peripheral surface of the ring member 27. The other end of 26,26 is comprised so that it may contact | abut.

As shown in FIG. 2, a gap t ₁ is generated between the other end of the rigid rod-shaped members 26, 26 and the inner peripheral surface of the ring member 27 with one end of the rigid rod-shaped members 26, 26 in contact with the cylindrical body 23. It will be. The clearance t ₁ is determined by the relationship between the amplitude of vibration to be absorbed by the elastic body 22 and the so-called play when operating the operating rod 17. As shown in FIGS. 1 and 3, the connector 21 of the cable type operating device of the present invention includes a pair of washers 28 and 28 attached to both ends of the cylindrical body 23. The pair of washers 28, 28 are fitted into the connecting pin 24, and are attached to both ends of the cylindrical body 23 by screwing the female screw 29 to the second male screw portion 24 c, and the ring member 27 is made thick together with the plate-like elastic body 22. The ring member 27 is sandwiched from both sides in the vertical direction so as to be prevented from being detached from the elastic body 22.

The operation of the connecting member of the cable type operating device configured as described above will be described.
The other end of the control cable 18 having one end connected to the operating rod 17 provided in the driver's seat is connected to the transmission 13 via the connector 21 of the present invention, and is attached to the other end of the control cable 18. A plate-like elastic body 22 is interposed between the ring member 27 and the connecting pin 24 of the transmission 13. Therefore, even if the transmission 13 is vibrated, the vibration at the connecting pin 24 is absorbed by the deformation of the elastic body 22 and is hardly transmitted to the ring member 27. That is, the vibration of the transmission 13 when the operating rod 17 is normally operated is not directly transmitted to the operating rod 17 via the control cable 18, and the driver feels uncomfortable due to the vibration of the operating rod 17. There is nothing.

  On the other hand, when it is necessary to change the speed, the operating rod is operated relatively quickly. Then, the ring member 27 connected to the operating rod 17 via the control cable 18 moves in the axial direction of the control cable 18, and the elastic body 22 is deformed. As shown in FIGS. 4 and 5, the other end of the rigid rod-like member 26 directly contacts the inner peripheral surface of the ring member 27 that moves so as to exceed the vibration amplitude of the transmission 13 due to elastic deformation of the elastic body 22. . When the operating rod 17 is further moved, the movement of the ring member 27 is directly transmitted to the rigid rod-shaped member 26 and is linked to the movement of the cylindrical body 23, and is directly transmitted to the transmission 13 through the connecting pin 24. As a result, the elastic body 22 is prevented from being damaged by deformation exceeding the elastic limit, and the operation stroke of the operation rod 17 is prevented from being abnormally enlarged.

Further, in the connector 21 of the present invention, insertion holes 22b and 22b are formed in the plate-like elastic body 22 from the outer periphery toward the through hole 22a, and the insertion holes 22b and 22b have a length shorter than the depth of the insertion holes 22b and 22b. The rigid rod-shaped members 26, 26 having a thickness are inserted and the ring member 27 is merely fitted so as to surround the elastic body 22, so that the rigid rod-shaped members 26, 26 made of metal are vulcanized and connected to the elastic body 22. There is no need to do. Further, by changing the length of the rigid rod members 26, 26, the length until the inner peripheral surface of the ring member 27 contacts the other end of the rigid rod members 26, 26 can be changed relatively easily. it can. For this reason, the assembly man-hour is simplified as compared with the case where vulcanization connection is required, and the deformation amount of the elastic body 22 until the inner peripheral surface of the ring member 27 contacts the other end of the rigid rod-shaped members 26, 26. Can be adjusted relatively easily. As a result, it is possible to obtain a connector 21 that is relatively inexpensive and can adjust its characteristics relatively easily.
In the above-described embodiment, the cab over truck 10 is used as the vehicle. However, the vehicle may be a bonnet vehicle using a cable type operation device or other vehicles.

It is the sectional view on the AA line of FIG. 6 which shows the structure of the connector of embodiment of this invention. It is the BB sectional drawing of FIG. 1 which shows the coupling tool. It is a disassembled perspective view which shows the structure of the coupling tool. It is sectional drawing corresponding to FIG. 3 which shows the state which the cable moved to the left side and the elastic body deform | transformed. It is sectional drawing corresponding to FIG. 3 which shows the state which the cable moved to the right side and the elastic body deform | transformed. It is a perspective view which shows the attachment state of the coupling tool. It is a side view of the vehicle which has the connection tool.

Explanation of symbols

10b Car body 12 Side member 13 Transmission 17 Operation rod 18 Cable 21 Connector 22 Elastic body 22a Through hole 22b Insertion hole 23 Cylindrical body 24 Connection pin 26 Rigid rod member 27 Ring member 28 Washer

Claims (4)

Connection of a cable-type operating device that connects one end to the operating rod (17) provided in the passenger compartment and connects the other end of the cable (18) routed to the vehicle body (10b, 12) to the transmission (13) Tools,
A through hole (22a) for inserting a connecting pin (24) provided in the transmission (13) is formed in the thickness direction, and insertion holes (22b, 22b) from the outer periphery to the through hole (22a) are formed. The formed plate-like elastic body (22),
A rigid rod-like member (26, 26) having a length shorter than the depth of the insertion hole (22b, 22b) inserted into the insertion hole (22b, 22b) so that one end faces the through hole (22a);
A ring member (27) surrounding the elastic body (22) and having the other end of the cable (18) connected to the outer periphery so that the other end of the rod-shaped member (26, 26) faces the inner peripheral surface. A cable-type operating device connector provided.   A cylindrical body (23) having an inner diameter into which the connecting pin (24) can be inserted and having a length equal to or greater than the thickness of the elastic body (22) is inserted into the through hole (22a), and the rod-shaped members (26, 26) The other end of the cable (18) is connected to the outer periphery of the ring member (27), and a pair of washers sandwiching the ring member (27) from both sides in the thickness direction together with the elastic body (22) The connector for a cable type operating device according to claim 1, wherein 28, 28) are attached to both ends of the cylindrical body (23).   The insertion hole (22b, 22b) is formed so as to communicate with the through hole (22a) from the outer periphery of the elastic body (22), and one end of the rigid rod member (26, 26) is in contact with the outer peripheral surface of the cylindrical body (23) So that the elastic body (22) is deformed by the axial movement of the other end of the cable (18) and is inserted into the inner peripheral surface of the ring member (27). 3. A connector for a cable type operating device according to claim 2, wherein the other end of the rod-shaped member (26, 26) is in contact with the other.   Two insertion holes (22b, 22b) communicating with the through-holes from both sides in the diameter direction of the elastic body (22) are formed, respectively, and the insertion holes (22b, 22b) are rigid from both sides in the diameter direction of the elastic body (22). The connector of the cable type operating device according to any one of claims 1 to 3, wherein the rod-like members (26, 26) are respectively inserted.

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