JP4777752B2 - Control cable - Google Patents

Description

  The present invention relates to a control cable that can hold an inner cable at a predetermined position without providing a holding mechanism for holding the inner cable at a predetermined position outside.

Conventionally, there has been known a control cable having a structure in which an inner cable is slidably inserted into an outer casing (see, for example, Patent Document 1).
Japanese Unexamined Patent Publication No. 09-112532 (2nd page, FIG. 1)

  However, in the control cable described above, the inner cable is slidably inserted into the outer casing as described above. Therefore, in order to hold the inner cable in a predetermined position, the mechanism for that is controlled. It was necessary to install outside the cable.

  The present invention has been made in view of such problems, and the object of the present invention is to provide an inner cable at a predetermined position without providing a holding mechanism for holding the inner cable at a predetermined position. It is to provide a control cable that can be held at a position.

  The control cable according to claim 1, which has been made to solve the above-mentioned problems, is an outer casing (12: In this section, in order to facilitate the understanding of the invention, the best cable for carrying out the invention is The control cable (10) having a structure in which the inner cable (14) is slidably inserted into the form ”is attached to the reference numeral used in the“ form ”column, but it is not meant to limit the scope of claims. The locked portion (22a) attached to the inner cable, the guide portion (16b) capable of guiding the locked portion when the inner cable moves in the outer casing, A locking portion (16c, 16d) capable of locking the locked portion when the inner cable moves in a specific direction in the outer casing; Each time the inner cable moves in the specific direction and then moves in the opposite direction, the position of the locked portion is changed by changing the positional relationship of the locked portion, the guide portion, and the locking portion. Before moving to the original position, the locked portion is locked to the locking portion so that the locked portion cannot move in the opposite direction, and the locked portion is guided to the guide portion. And a switching means (16, 20) for switching between a movable state in which the locked portion is movable to the original position.

  According to the control cable of the present invention configured as described above, the positional relationship between the locked portion, the guide portion, and the locking portion is changed each time the inner cable moves in the specific direction and then moves in the opposite direction. Thus, the movable state and the movable state are switched. The immovable state refers to a state in which the locked portion is locked to the locking portion before the locked portion moves to the original position and cannot move in the opposite direction. The movable state refers to a state in which the locked portion is guided to the guide portion so that the locked portion can be moved to the original position. Accordingly, the inner cable can be held at the predetermined position without providing a holding mechanism for holding the inner cable at the predetermined position outside.

In addition, it is possible that the above-mentioned to-be-latched part, guide part, latching part, and switching means constitute a holding mechanism for holding the inner cable at a predetermined position.
In this case, it is conceivable that the above-described holding mechanism is housed in any one of the casing caps (36) attached to both ends of the outer casing (claim 2). If comprised in this way, an inner cable can be hold | maintained in a predetermined position, without providing a holding mechanism outside.

  Further, it is conceivable that the above-described holding mechanism is disposed outside the casing cap (claim 3). If comprised in this way, the position of a holding | maintenance mechanism can be set according to the shape of the space in which a control cable is accommodated. In addition, the control cable can be stored in various shaped spaces.

  In addition, about the above-mentioned to-be-latched part, it is possible that the inner cable is attached to the rotary body inserted in the inside. Specifically, as in claim 4, the above-mentioned locked portion is provided with a rotating body (22) in which an inner cable is inserted, and the above-mentioned switching means is provided with an inner cable. Provided with rotation assist means (16, 20) for rotating the rotating body by a predetermined angle when moving in a specific direction and rotating the rotating body by a predetermined angle when moving the inner cable in the opposite direction. Each time it moves in the opposite direction after the movement, the rotation assisting means cooperates with the urging means to rotate the rotating body in a predetermined direction so that the positional relationship between the locked part, the guide part and the locking part is established. It is conceivable to switch between a non-movable state and a movable state by changing.

  In this case, it is conceivable that an inclined portion (22b) is formed on the rotating body, and an inclined portion (20b) facing the inclined portion of the rotating body is formed on the rotation assisting means of the switching means ( Claim 5). If comprised in this way, the rotation assistance means of a switching means can be cooperated with a biasing means, and can assist it to always rotate a rotary body to a predetermined direction.

  By the way, it is conceivable to include urging means for urging the inner cable in a direction opposite to a specific direction. Specifically, as in claim 6, there is provided urging means (28) for urging the inner cable in a direction opposite to the specific direction, and the switching means is provided after the inner cable has moved in the specific direction. It is conceivable to switch between a non-movable state and a movable state by changing the positional relationship between the locked portion, the guide portion, and the locking portion each time it moves in the opposite direction by the urging force of the urging means. . If comprised in this way, according to the inner cable which moved to the specific direction, while a switching means can be stabilized without depending on the magnitude | size of the tension | tensile_strength of an inner cable, while being able to stabilize, the movement can be performed smoothly.

  In addition, you may comprise so that a biasing means may be included in the above-mentioned holding mechanism. In this case, it is conceivable that the above-described holding mechanism is housed in any of the casing caps attached to both ends of the outer casing. If comprised in this way, an inner cable can be hold | maintained in a predetermined position, without providing a holding mechanism outside. Further, it is conceivable that the above-described holding mechanism is disposed outside the casing cap. If comprised in this way, the position of a holding | maintenance mechanism can be set according to the shape of the space in which a control cable is accommodated. In addition, the control cable can be stored in various shaped spaces.

Embodiments of the present invention will be described below with reference to the drawings.
[First embodiment]
FIG. 1 is an external view of a reclining device 5 attached to the chair 1.

[Description of configurations of chair 1 and reclining device 5]
As shown in FIG. 1, the chair 1 has a backrest portion 4 supported by the chair body 2, and the backrest portion 4 has a backrest surface from a sitting position where the backrest surface is substantially upright with respect to the chair body 2. It is comprised so that rotation is possible to the position on the back which inclines back.

  Moreover, the chair 1 is provided with the reclining apparatus 5 for hold | maintaining the state in which the backrest part 4 inclined. The reclining device 5 includes a gas damper 6, a bracket 7, an operation lever 8, and a control cable 10.

  Among these, the gas damper 6 includes a gas damper main body 6a and a rod 6b partly movable within the gas damper main body 6a. When the tip 6c of the rod 6b is pressed, the gas damper main body 6a When the tip 6c of the rod 6b is not pressed, a part of the rod 6b is configured to be immovable inside the gas damper main body 6a (see FIG. 2 (b)). In addition, about each part structure of the gas damper 6, since it follows the well-known technique, detailed description is abbreviate | omitted here.

  In the gas damper 6, the end of the gas damper main body 6 a is attached to the backrest 4, and the tip 6 c of the rod 6 b is attached to one end of the control cable 10 via the bracket 7. Note that one end of the bracket 7 is supported by the chair body 2, and the posture of the bracket 7 can be changed around the supported portion.

  An operation lever 8 is attached to the other end of the control cable 10. The operation lever 8 is substantially supported at the center by the chair body 2 and can change its posture around the supported position.

  Accordingly, the reclining device 5 operates the operation lever 8 to change the posture of the pressing plate 73 of the bracket 7 via the control cable 10 to press the tip 6c of the rod 6b, thereby causing the backrest portion of the chair 1 to move. The inclination of 4 can be changed.

Below, the bracket 7 and the control cable 10 which comprise the reclining apparatus 5 are demonstrated in detail.
[Description of the structure of the bracket 7]
The bracket 7 includes a bracket body 71, a fixing plate 72, and a pressing plate 73.

  Among these, the bracket body 71 is a plate material having a U-shaped cross section including a central portion 71a and wing portions 71b and 71c on both sides thereof, and a rod 6b of a gas damper 6 is attached to the central portion 71a. A through hole 71d is formed in the central portion 71a, and the tip 6c of the rod 6b is inserted into the through hole 71d.

  A fixed plate 72 is attached to the central portion 71a. The fixing plate 72 is made of a plate material, and a through hole 72a is formed in the vicinity of the end portion on the side opposite to the portion attached to the central portion 71a of the bracket 7. The front portion 16e and the inner cable 14 of the inner cap 16 of the control cable 10 are inserted into the through hole 72a formed in the fixing plate 72, and the fixing plate 72 is attached to the control cable 10 by two nuts 74 and 74. The inner cap 16 is attached to the front portion 16e.

  Further, through holes 71e and 71f are formed in the blade portions 71b and 71c of the bracket 7, respectively. A pressing plate 73 is swingably attached by a pin 71g inserted through the through holes 71e and 71f. Specifically, a through hole 73 a is formed near one end of the plate-like pressing plate 73, and the through holes formed in the through hole 73 a of the pressing plate 73 and the wing portions 71 b and 71 c of the bracket body 71. A pin 71g is inserted in a state where the holes 71e and 71f communicate with each other, and the pressing plate 73 can swing around the pin 71g.

  The pressing plate 73 is a U-shaped cross-sectional plate material, and a notch 73b is formed near the other end. An end 14a attached to one end of the inner cable 14 of the control cable 10 is locked. The pressing plate 73 is disposed at a position where the tip 6c of the rod 6b of the gas damper 6 can be pressed when swinging.

  Further, through-holes 71h and 71i are formed in the wing portions 71b and 71c, and the bracket 7 is attached to the chair body 2 by attaching to the chair body 2 screws (not shown) through which the through-holes 71h and 71i are inserted. Is attached.

[Description of configuration of control cable 10]
FIG. 2A is a plan view showing the appearance of the control cable 10. FIG. 2B is a front view showing the appearance of the control cable 10 and the gas damper 6. 3A is an explanatory diagram (1) showing the configuration of the holding mechanism of the control cable 10, and FIG. 3B is an explanatory diagram (2) showing the configuration of the holding mechanism of the control cable 10. 4A is an explanatory diagram (3) showing the configuration of the holding mechanism of the control cable 10, and FIG. 4B is an explanatory diagram (4) showing the configuration of the holding mechanism of the control cable 10. FIG.

  Hereinafter, in the control cable 10, the side on which the inner cap 16 is disposed with respect to the outer cap 30 is referred to as “front part”, and the side on which the outer cap 30 is disposed with respect to the inner cap 16 is referred to as “rear part”. "

  As shown in FIG. 2, the control cable 10 has a structure in which an inner cable 14 is slidably inserted into an outer casing 12. Specifically, the control cable 10 includes an outer casing 12, an inner cable 14, an inner cap 16, a nut 18, a non-rotating stopper 20, a rotating stopper 22, an end 24, a ring 26, a biasing spring 28, and an outer cap 30. I have. The inner cap 16, the nut 18, the non-rotating stopper 20, the rotating stopper 22, the end 24, the ring 26, the biasing spring 28, and the outer cap 30 constitute a holding mechanism 32.

  As shown in FIG. 3, the inner cable 14 is inserted through the inner cap 16, the nut 18, the non-rotating stopper 20, the rotating stopper 22, the end 24, the ring 26, the biasing spring 28, and the outer cap 30. The holes are inserted in that order.

  The inner cap 16 has a cylindrical shape. Three guide grooves 16b are formed in the rear portion 16a of the inner cap 16, and the protrusion portions 20a of the non-rotation stopper 20 and the protrusion portions 22a of the rotation stopper 22 can be inserted into the guide grooves 16b. It is. Further, six inclined portions 16 c are formed on the rear end surface of the rear portion 16 a of the inner cap 16. Thus, two inclined portions 16c are formed between the guide groove 16b and the guide groove 16b. A wall portion 16d is formed between the inclined portion 16c and the inclined portion 16c. Further, a male screw portion 16 f is formed on the front portion 16 e of the inner cap 16.

  The inner cap 16 corresponds to the switching means and the rotation assisting means together with the non-rotating stopper 20. Further, the guide groove 16b of the inner cap 16 corresponds to a guide portion. Further, the inclined portion 16c and the wall portion 16d of the inner cap 16 correspond to locking portions.

  The end 24 has a cylindrical shape in which the outer diameter of the rear portion 24a is formed larger than the outer diameter of the central portion 24b. The inner cable 14 is inserted into the end 24 and is fixed to the inner cable 14 by caulking the rear portion 24a. Further, a male screw portion 24 d is formed at the front portion 24 c of the end 24. And the rotation stopper 22 and the non-rotation stopper 20 are penetrated in that order from the front part 24c side at the center part 24b of the end 24, and the nut 18 is attached to the front part 24c. Here, the male screw portion 24d and the nut 18 are fixed. As a result, the non-rotating stopper 20 and the rotating stopper 22 can rotate around the central portion 24 b of the end 24. A configuration in which the rotation stopper 22, the non-rotation stopper 20 and the nut 18 are attached to the end 24 in this way is referred to as a stopper mechanism 34.

  The non-rotating stopper 20 is formed in an annular shape, and the inner cable 14 is inserted therein. Further, from the side surface of the non-rotating stopper 20, three projecting portions 20a project in the radial direction at positions that equally divide the circumference. Furthermore, six inclined portions 20b are formed on the front end face of the non-rotating stopper 20 at positions that equally divide the circumference.

  The rotation stopper 22 is formed in an annular shape, and the inner cable 14 is inserted through the rotation stopper 22. Further, from the side surface of the rotation stopper 22, three protrusions 22 a protrude in the radial direction at positions that equally divide the circumference. Furthermore, six inclined portions 22b are formed on the front end surface of the rotation stopper 22 at positions that equally divide the circumference, and can be engaged with the six inclined portions 20b of the non-rotating stopper 20 facing each other. When the inclined portion 20b of the non-rotating stopper 20 and the inclined portion 22b of the rotating stopper 22 mesh with each other, the protruding portion 20a of the non-rotating stopper 20 and the protruding portion 22a of the rotating stopper 22 are arranged so as not to line up. Has been. The rotation stopper 22 corresponds to a rotating body. Further, the protrusion 22a of the rotation stopper 22 corresponds to the locked portion.

  In the stopper mechanism 34 described above, the three protrusions 20a of the non-rotating stopper 20 are respectively inserted into the three guide grooves 16b equally dividing the circumference formed in the rear portion 16a of the inner cap 16. The inner cap 16 is housed inside the rear portion 16a (see FIG. 3B).

  The outer cap 30 has a cylindrical shape in which the inner diameter of the front portion 30a is formed larger than the inner diameter of the rear portion 30b. Further, inside the front portion 30a of the outer cap 30, the rear portion 16a of the inner cap 16 in which the urging spring 28, the ring 26 and the stopper mechanism 34 are accommodated is accommodated in this order, and the front portion 30a of the outer cap 30 is disposed on the inner side. By caulking with the cap 16, the inner cap 16 cannot be separated from the outer cap 30 (see FIG. 3B). The inner cap 16 and the outer cap 30 constitute a casing cap 36, and the casing cap 36 is located near one end of the control cable 10.

  In the inside of the front portion 30a of the outer cap 30, the urging spring 28 is in contact with the inner portion of the front portion 30a of the outer cap 30, and the front end portion 28b is in contact with the ring 26. And has a function of urging the rotation stopper 22 toward the non-rotation stopper 20 (see FIG. 3B). The urging spring 28 corresponds to urging means.

  The ring 26 is formed in an annular shape, and the inner cable 14 is inserted through the ring 26. The ring 26 is biased toward the rotation stopper 22 by the biasing force of the biasing spring 28 inside the front portion 30a of the outer cap 30 (see FIG. 3B). As a result, the ring 26 has a function of preventing the tip of the biasing spring 28 from being caught in the inner cap 16 or the like.

[Description of operation of reclining device 5]
Next, the operation of the reclining device 5 will be described with reference to FIGS. 1, 2, and 4 to 6.

  2A, when the inner cable 14 of the control cable 10 is moving forward and the tip 6c of the rod 6b of the gas damper 6 is not pressed by the bracket 7, the gas damper 6 The rod 6b cannot move within the gas damper main body 6a, and therefore the inclination of the backrest 4 of the chair 1 is maintained (see FIGS. 1 and 2). In this case, with respect to the stopper mechanism 34 of the control cable 10, since the inner cable 14 has moved forward, three guides 20 a of the non-rotating stopper 20 are formed on the rear portion 16 a of the inner cap 16. The three protrusions 22a of the rotation stopper 22 are respectively inserted into the grooves 16b, and are inserted into the three guide grooves 16b of the inner cap 16 (see FIGS. 4A and 5A). Further, the six inclined portions 20b of the non-rotating stopper 20 and the six inclined portions 22b of the rotating stopper 22 are not meshed with each other, and the non-rotating stopper 20 and the rotating stopper 22 are separated (FIG. 4A and FIG. 5 (a)).

  When the inner cable 14 is moved rearward by operating the operation lever 8, the stopper mechanism 34 moves rearward, and the protrusion 22a of the rotation stopper 22 is disengaged from the guide groove 16b of the inner cap 16 (FIG. 5B). reference). Then, the rotation stopper 22 is pressed toward the non-rotation stopper 20 by the urging force of the urging spring 28, and the protrusion 22 a of the rotation stopper 22 is guided to the inclined portion 16 c of the inner cap 16. The rotation stopper 22 rotates until the inclined portion 20b and the six inclined portions 22b of the rotation stopper 22 are engaged with each other (see FIGS. 4B and 5C).

  Subsequently, when the operation of the operation lever 8 is released, the inner cable 14 moves forward until the rear portion 24 a of the end 24 contacts the rotation stopper 22 due to the reaction force on the operated side of the inner cable 14. At this time, the non-rotating stopper 20 abuts at the boundary step portion 24e between the center portion 24b and the front portion 24c of the end 24 and moves together with the end 24, so that the meshing between the non-rotating stopper 20 and the rotating stopper 22 is eliminated. The rotation stopper 22 moves rearward while rotating until the projection 22a contacts the wall 16d of the inner cap 16 (see FIG. 5D). The protrusion 22a of the rotation stopper 22 is held in mesh with the inclined portion 16c and the wall 16d of the inner cap 16, and thereafter the inner cable 14 is prevented from moving forward. In this case, the inner cable 14 is located behind the position of the inner cable 14 in the initial state. As a result, the pressing plate 73 of the bracket 7 presses against the tip 6c of the rod 6b of the gas damper 6, and the rod 6b of the gas damper 6 becomes movable within the gas damper main body 6a. The inclination degree of the backrest part 4 can be changed (see FIGS. 1 and 2).

  When the inner cable 14 is moved rearward again by operating the operation lever 8, the stopper mechanism 34 moves rearward, and the protrusion 22a of the rotation stopper 22 is disengaged from the wall 16d of the inner cap 16 (FIG. 6A). )reference). Then, the rotation stopper 22 is pressed toward the non-rotation stopper 20 by the urging force of the urging spring 28, and the protrusion 22 a of the rotation stopper 22 is guided to the inclined portion 16 c of the inner cap 16. The rotation stopper 22 rotates until the inclined portion 20b and the six inclined portions 22b of the rotation stopper 22 are engaged with each other (see FIGS. 4B and 6B).

  Subsequently, when the operation of the operation lever 8 is released, the inner cable 14 moves forward until the rear portion 24 a of the end 24 contacts the rotation stopper 22 due to the reaction force on the operated side of the inner cable 14. At this time, since the non-rotating stopper 20 abuts at the boundary step portion 24e between the center portion 24b and the front portion 24c of the end 24 and moves together with the end 24, the meshing between the non-rotating stopper 20 and the rotating stopper 22 is eliminated. . Then, the rotation stopper 22 rotates until the protrusion 22a of the rotation stopper 22 is positioned behind the guide groove 16b of the inner cap 16 (see FIG. 6C). Subsequently, the projection 22a of the rotation stopper 22 moves into the guide groove 16b of the inner cap 16 by the biasing force of the biasing spring 28 (see FIGS. 4A and 5A). In this case, the inner cable 14 is in the initial position. That is, the tip 6c of the rod 6b of the gas damper 6 is not pressed by the bracket 7, and the rod 6b of the gas damper 6 is incapable of moving inside the gas damper main body 6a. Therefore, the inclination of the backrest 4 of the chair 1 is maintained (see FIGS. 1 and 2).

[Effect of the first embodiment]
(1) Thus, according to the reclining device 5 of the first embodiment, each time the inner cable 14 moves in the rearward direction and then moves in the forward direction by the biasing force of the biasing spring 28, The positional relationship among the protrusion 22a and the inclined portion 22b of the rotation stopper 22, the guide groove 16b of the inner cap 16 as the guide portion, and the inclined portion 16c of the inner cap 16 as the locking portion and the inclined portion 20b of the non-rotating stopper 20 Is changed to switch between the immovable state and the movable state. Note that the immovable state refers to a state in which the locked portion is locked to the locking portion before moving the locked portion to the original position and cannot move forward. The state refers to a state in which the locked portion is guided to the guide portion so that the locked portion can be moved to the original position. Thus, the inner cable 14 can be held at a predetermined position without providing a holding mechanism 32 for holding the inner cable 14 at a predetermined position outside.

  (2) Further, according to the reclining device 5 of the first embodiment, the rotation stopper 22 is formed with the inclined portion 22b, and the non-rotation stopper 20 is formed with the inclined portion facing the inclined portion 22b of the rotation stopper 22. 20b is formed. Thereby, the non-rotating stopper 20 can assist the rotating stopper 22 to always rotate in one direction.

  (3) Further, according to the reclining device 5 of the first embodiment, the rotation stopper 22 is formed with the inclined portion 22b, and the non-rotation stopper 20 is formed with the inclined portion facing the inclined portion 22b of the rotation stopper 22. 20b is formed. Further, the inner cap 16 is formed with an inclined portion 16c and a wall portion 16d capable of locking the protrusion 22a of the rotation stopper 22. Thus, the non-rotating stopper 20 and the inner cap 16 can assist the rotation stopper 22 to always rotate in a predetermined direction in cooperation with the biasing spring 28.

  (4) Further, according to the reclining device 5 of the first embodiment, the stopper mechanism 34 described above realizes a movable state and a non-movable state by an operation centering on the rotation stopper 22. At that time, the inner cable 14 is not twisted due to repeated switching between the two states. For this reason, this mechanism has no influence on the basic sliding performance of the inner cable 14. This is a major feature of this mechanism.

(5) Moreover, according to the reclining device 5 of the first embodiment, the above-described stopper mechanism 34 is configured coaxially with the inner cable 14. This makes the overall structure of the control cable 10 compact, and improves the attachment to the target device that can use the control cable 10 and the routing of the cable.
[Second Embodiment]
In the first embodiment, in the control cable 10, the rotation stopper 22 includes three projecting portions 22 a and six inclined portions 22 b, and the inclined portion 22 b is engaged with the inclined portion 20 b of the non-rotating stopper 20. The rotation stopper 22 has a function of suppressing the rotation.

  On the other hand, in the second embodiment, as illustrated in FIG. 7A, in the control cable 110, the protrusion 122 a of the rotation stopper 122 meshes with the inclined portion 20 b of the non-rotation stopper 20. 22 has a function of suppressing rotation. That is, the protrusion 122a of the rotation stopper 122 is configured to function as the inclined portion 22b of the rotation stopper 22 of the first embodiment.

  Specifically, as illustrated in FIG. 7A, the outer diameter dimension of the annular rotation stopper 122 is configured to be smaller than the outer diameter dimension of the non-rotation stopper 20, and a protrusion is formed from the side surface of the rotation stopper 122. The portion 122a protrudes in the radial direction. About the length dimension of this protrusion part 122a, when the non-rotation stopper 20 and the rotation stopper 122 are inserted in the end 24, it is set so that the inclination part 20b of the non-rotation stopper 20 may be opposed.

In this way, compared to the rotation stopper 22 of the first embodiment, the material can be reduced as much as the outer diameter dimension of the rotation stopper 122 can be reduced. Therefore, the outer dimension of the mechanism portion can be reduced, and the entire structure including the control cable 10 can be reduced in size.
[Third embodiment]
Moreover, as illustrated in FIG. 7B, in the control cable 110, an annular ring 126 may serve as the function of the rotation stopper 22 of the first embodiment. Specifically, as illustrated in FIG. 7B, the ring 126 is configured as follows. That is, the ring 126 is formed in an annular shape. Further, from the side surface of the ring 126, three protruding portions 126a protrude in the radial direction. Furthermore, six inclined portions 126 b are formed on the front end surface of the ring 126.

In this way, compared with the first embodiment and the second embodiment, the number of parts that do not require the rotation stopper 22 can be reduced, and the configuration can be simplified.
[Other Embodiments]
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, It is possible to implement in the following various aspects.

  (1) In the first embodiment, an example in which the control cable 10 is applied to the reclining device 5 has been described. However, the present invention is not limited to this, and any device using a pull cable is applicable. For example, the control cable 10 is applied to a parking brake cable of a vehicle.

  (2) In the control cable 10 of the first embodiment, the casing cap 36 that is located near one end of the outer casing 12 of the control cable 10 is provided with the holding mechanism 32 for holding the inner cable 14 at a predetermined position. However, the present invention is not limited to this, and the holding mechanism 32 may be integrated with a casing cap (not shown) located near the other end of the outer casing 12 of the control cable 10. . Further, the holding mechanism 32 may be formed separately from the casing cap 36. Further, the holding mechanism 32 may be installed at a place other than the vicinity of the end portion of the outer casing 12 of the control cable 10.

  If comprised in this way, the position of the holding mechanism 32 can be set according to the shape of the space in which the control cable 10 is accommodated. Further, the control cable 10 can be stored in various shapes of spaces.

  (3) In the control cable 10 of the first embodiment, the holding mechanism 32 is constituted by the inner cap 16, the nut 18, the non-rotating stopper 20, the rotating stopper 22, the end 24, the ring 26, the biasing spring 28 and the outer cap 30. However, the present invention is not limited to this, and includes the inner cap 16, the nut 18, the non-rotating stopper 20, the rotating stopper 22, the end 24, the ring 26, and the outer cap 30 excluding the biasing spring 28. Also good. Specifically, the positional relationship between the inner wall of the inner cap 16 and the rotation stopper 22 is changed to continuously switch between the movable state and the unmovable state.

  Even if comprised in this way, there exists an effect similar to the said embodiment.

It is an external view of the reclining apparatus attached to the chair. (A) is a top view which shows the external appearance of a control cable, (b) is a front view which shows the external appearance of a control cable and a gas damper. (A) is explanatory drawing (1) which shows the structure of the holding mechanism of a control cable, (b) is explanatory drawing (2) which shows the structure of the holding mechanism of a control cable. (A) is explanatory drawing (3) which shows the structure of the holding mechanism of a control cable, (b) is explanatory drawing (4) which shows the structure of the holding mechanism of a control cable. (A) is explanatory drawing (1) which shows operation | movement of a reclining apparatus, (b) is explanatory drawing (2) which shows operation | movement of a reclining apparatus, (c) is explanatory drawing (3) which shows operation | movement of a reclining apparatus. (D) is explanatory drawing (4) which shows operation | movement of a reclining apparatus. (A) is explanatory drawing (5) which shows operation | movement of a reclining apparatus, (b) is explanatory drawing (6) which shows operation | movement of a reclining apparatus, (c) is explanatory drawing (7) which shows operation | movement of a reclining apparatus. ). (A) is explanatory drawing which shows the structure of the control cable of 2nd embodiment, (b) is explanatory drawing which shows the structure of the control cable of 3rd embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Chair, 2 ... Chair main body, 4 ... Backrest part, 5 ... Reclining device, 6 ... Gas damper, 6a ... Gas damper main body, 6b ... Rod, 6c ... Tip, 7 ... Bracket, 8 ... Control lever 10, DESCRIPTION OF SYMBOLS 110 ... Control cable, 12 ... Outer casing, 14 ... Inner cable, 14a ... End, 16 ... Inner cap, 16a ... Rear part of inner cap, 16b ... Guide groove, 16c ... Inclined part, 16d ... Wall part, 16e ... Inner Front part of cap, 16f ... male screw part, 18 ... nut, 20 ... non-rotating stopper, 20a, 22a, 122a ... projection, 20b, 22b ... inclined part, 22, 122 ... rotating stopper, 24 ... end, 24a ... End rear part, 24b ... End center part, 24c ... End front part, 24d ... Male thread part, 26, 126 ... Ring, 28 ... Biasing spring, 8a ... front end, 28b ... rear end, 30 ... outer cap, 30a ... front portion of outer cap, 30b ... rear portion of outer cap, 32 ... holding mechanism, 34 ... stopper mechanism, 36 ... casing cap, 71 ... bracket body 71a ... center part, 71b, 71c ... wing part, 71d, 71e, 71f, 71h, 71i, 72a, 73a ... through hole, 71g ... pin, 72 ... fixing plate, 73 ... pressing plate, 73b ... notch, 74 ... Nut, 126a ... Ring of the ring, 126b ... Inclined part of the ring

Claims (6)

A control cable having a structure in which an inner cable is slidably inserted into an outer casing,
A locked portion attached to the inner cable;
A guide portion capable of guiding the locked portion when the inner cable moves in the outer casing;
A locking portion capable of locking the locked portion when the inner cable moves in a specific direction in the outer casing;
Each time the inner cable moves in the specific direction and then moves in the opposite direction, the position of the locked portion is changed by changing the positional relationship of the locked portion, the guide portion, and the locking portion. Before moving to the original position, the locked portion is locked to the locking portion so that the locked portion cannot move in the opposite direction, and the locked portion is guided to the guide portion. Switching means for switching the movable state to enable the locked portion to move to the original position;
A control cable characterized by comprising. The control cable according to claim 1,
A casing cap is attached to each end of the outer casing,
The control cable, wherein the locked portion, the guide portion, the locking portion, and the switching means are housed inside any one of the casing caps. The control cable according to claim 1,
A casing cap is attached to each end of the outer casing,
The control cable, wherein the locked portion, the guide portion, the locking portion, and the switching means are arranged outside the casing cap. In the control cable according to any one of claims 1 to 3,
The inner cable includes a rotating body inserted therein,
The locked portion is attached to the rotating body,
The switching means is
A rotation assisting means for rotating the rotating body by a predetermined angle when the inner cable moves in the specific direction, and rotating the rotating body by a predetermined angle when the inner cable moves in the opposite direction;
Whenever the inner cable moves in the specific direction and then moves in the opposite direction, the rotation assisting means cooperates with the biasing means to rotate the rotating body in a predetermined direction, thereby locking the locked state. A control cable that switches between the immovable state and the movable state by changing a positional relationship between the guide portion, the guide portion, and the locking portion. The control cable according to claim 4,
The rotating body is formed with an inclined portion,
The control cable according to claim 1, wherein the rotation assisting means of the switching means is formed with an inclined portion facing the inclined portion of the rotating body. In the control cable according to any one of claims 1 to 5,
Urging means for urging the inner cable in a direction opposite to a specific direction;
Each time the switching means moves in the opposite direction by the urging force of the urging means after the inner cable has moved in the specific direction, the position of the locked portion, the guide portion, and the locking portion A control cable that switches between the immovable state and the movable state by changing a relationship.

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