JP6353236B2 - Control cable length adjustment device - Google Patents

Description

Detailed description

The present invention relates to a control cable length adjusting device, and more specifically, fine adjustment and coarse adjustment of the length of a control cable installed in a vehicle or the like without using a tool such as a wrench or a spanner. The present invention relates to a control cable length adjusting device that can be easily performed using both hands.
Here, fine adjustment refers to, for example, continuous adjustment between 0 and 5 mm or adjustment in increments of 0.01 to 0.3 mm. The coarse adjustment refers to, for example, continuous adjustment between 0.5 to 50 mm or adjustment in increments of 0.3 to 3.0 mm.

It is necessary to adjust the length of the control cable as necessary. For example, the tension of control cables installed in brakes and clutch mechanisms of vehicles, etc. requires a certain amount of play and greatly affects the sense of operation by the driver. It is necessary to make fine adjustments or rough adjustments to the tension. For this purpose, various techniques and devices related to a control cable length adjusting device have been proposed. For example, Patent Document 1 (see page 1 and FIG. 1) discloses a terminal tube having a locking surface in which irregularities are repeated in the axial direction on at least one surface, and a terminal tube that is externally fitted to the terminal tube so as to be freely movable in the axial direction. A cylindrical holder fixed to the mating member and a clip sandwiched between the cylindrical holders, and the length of the control cable is adjusted by connecting the terminal cylinder fixed to the end of the outer casing to the rectangular shape of the cylindrical holder. The engaging surface is inserted into the insertion hole with the position thereof adjusted, moved in the axial direction to adjust the position, and is clamped by a clip.
Patent Document 2 (see page 1 and page 1) has a slide bolt formed with a male screw part and a female screw part fixed to a stationary member and screwed into the male screw part of the slide bolt. It consists of a fixed part and a fixed part and an operating part that is rotatably connected to the conduit between the fixed part and the conduit, and its length adjustment is impossible relative to the fitting recess when the operating part is rotated. Also, the slide bolt in which the head is housed so as to be movable in the axial direction is also rotated. When the slide bolt rotates, the male screw portion is screwed into the female screw of the fixing portion, so that the tip of the slide bolt approaches or separates from the nipple fixed to the inner cable. As a result, the movement stroke of the inner cable is adjusted.

However, since Patent Document 1 has a locking surface formed on the terminal cylinder, length adjustment for each predetermined pitch (for example, 1 mm) and coarse adjustment of, for example, 2 mm or more are possible. , 0.5 mm or 1.5 mm is not possible.
Further, in Patent Document 2, fine adjustment such as 0.5 mm, 0.8 mm, or 1.5 mm is possible by a male screw portion formed on a slide bolt and a female screw portion formed on a fixed portion. However, adjustment of a long stroke (rough adjustment) such as 5 mm to 10 mm has a problem that it is complicated and requires time because the operation unit must be rotated many times. Furthermore, there is a drawback that the adjusted predetermined length fluctuates due to slack in the male screw portion and the female screw portion due to vibration of the engine or the like, and screw advancement.

Japanese Utility Model Publication No. Heisei 1-100947 Japanese Patent No. 2533164

The present invention has been devised in view of the various drawbacks and disadvantages of the conventional technology as described above, and the problem to be solved by the present invention is to use a tool such as a wrench or spanner. Provides a control cable length adjustment device that can be used for both fine adjustment and rough adjustment of the control cable length using both the left and right hands, as well as subtle shifts (sagging, etc.) due to vibration of the engine, etc. There is to do.

Means for solving the problems (first to third inventions) are the inventions described in the claims of the present application and the claims. Specifically, the first invention is described in claim 1. The second invention is the invention described in claim 2, and the third invention is the invention described in claim 3. Specific means for solving the problems are as follows.

According to the first aspect of the present invention, an insertion hole for inserting a control cable composed of an outer casing and an inner cable is formed in the shaft center portion, and an insertion hole through which the inner cable communicates in the longitudinal direction of the shaft. It is formed, and a head with long bolt formed with a male screw portion on an outer peripheral surface, a first locking member for restricting axial movement of the long bolt, the length is fitted to the end thread portion of the long bolts A second locking member that restricts the movement of the bolt in the rotational direction; the long bolt is guided in the axial direction; the first locking member is guided in a direction orthogonal to the axial direction; and the second locking member And a case for guiding both in the axial direction and the orthogonal direction.

According to a second aspect of the present invention, in the control cable length adjusting device according to the first aspect, the second lock member is pressed against the surface of the thread of the male screw portion, and the valley of the male screw portion. What steel wire or a torsion spring-like clip der made of a synthetic resin material having a fitting capable diameter in part, as comprising: a knob portion for opening the clamping of the male screw portion at both ends of the clip Yes.

According to a third aspect of the present invention , in the control cable length adjusting device according to the second aspect, the second locking member is screwed when a left or right rotational force is applied to the long bolt. It is a torsion spring-like clip made of a steel wire or a synthetic resin material having a shape in which the wire of the part works to tighten the male screw portion.

According to the control cable length adjusting device of the first to third aspects, the length of the control cable can be adjusted using both the left and right hands without using a tool such as a wrench or a wrench. The problem of providing a control cable length adjusting device that can prevent fine adjustment (roughness, etc.) due to vibration of the engine as well as fine adjustment and coarse adjustment could be solved.

It is a top view of the principal part in the outer length adjustment apparatus of the control cable of this invention. FIG. 2 is an enlarged cross-sectional view taken along line 2-2 in FIG. 1, (a) is a side view of the second lock member, showing a free state, and (b) is a side view of the second lock member, The state where the picking force is applied is shown. It is explanatory drawing of a 1st locking member, (A) is a top view, (B) is a side view, (C) is a bottom view. It is a perspective view of the 2nd lock member. (A) And (b) is sectional drawing explaining the relationship between a long volt | bolt and a 2nd locking member. Fig. 6 is a cross-sectional view taken along line 6-6 in Fig. 1, (a) is a cross-sectional view showing a state in which movement of the long bolt by the first lock member is restricted, and (b) is a long bolt by the first lock member. It is sectional drawing which shows the state which canceled the movement restrictions. It is sectional drawing which shows the state which released the 1st lock member and the 2nd lock member, changed the relative distance between a case and a long volt | bolt, and finely adjusted or coarsely adjusted the control cable.

The control cable length adjusting device of the present invention will be described below with reference to the drawings. FIG. 1 shows a main part of a control cable length adjusting device of the present invention. 10 is the whole outer length adjustment apparatus of the control cable of this invention. 11 is a control cable comprising an outer casing 11a and an inner cable 11b on one end side, and 12 is a control cable comprising an outer casing 12a and an inner cable 11b on the other end side. Reference numeral 1 denotes a long bolt with a head 1a, and a male screw portion 1b is screwed to the outer peripheral surface of the shaft portion. An insertion hole 1c for inserting the control cable 11 is formed in the center of the head 1a. Reference numeral 2 denotes a first locking member made of a hard resin material having elasticity. As shown in FIG. 3 (b), the shape is substantially “gate”, and the bifurcated leg pieces 2a and 2b are provided with triangular projections 2c and 2d. Further, as shown in FIG. 3C, a semicircular female screw portion 2f is screwed in the center of the first lock member 2 slightly above. In FIG. 1 and FIG. 4, 3 is a second lock member, which is a torsion spring-like clip made of a steel wire or a synthetic resin material and made up of knobs 3a, 3b and a coil portion 3c. It is manufactured by being molded into a coil shape 1 to 5 times so as to be biased by the thread trough r of the portion 1b. The form from the knobs 3a, 3b to the coil portion 3c is not limited to that illustrated. The wire diameter 3d (see FIG. 2 (a)) of the second lock member (clip) 3 is a wire diameter 3d that can be fitted to the thread trough r of the male screw portion 1b. R is the outer diameter of the screw thread (see FIGS. 5A and 5B). Reference numeral 4 denotes a case for housing the long bolt 1, the first lock member 2 and the second lock member 3, which is made of a hard resin material and is formed into a rectangular box as shown in FIGS. ing. A concave guide portion 4 a is formed at one end of the case 4 so that the first lock member 2 can be operated up and down.

Next, a basic adjustment procedure in the control cable length adjusting device 10 of the present invention will be described with reference to FIGS. FIG. 1 shows a state in which the length of the control cable 11 is regulated by the first lock member 2 and the second lock member 3. As shown in FIGS. 5A and 5B and FIGS. 6A and 6B, the male screw portion 1b of the long bolt 1 is screwed into the female screw portion 2f screwed to the first lock member 2. The upper end portions of the protrusions 2 c and 2 d of the leg pieces 2 a and 2 b are in contact with the lower end portions 4 b and 4 c on both sides of the case 4. On the other hand, as shown in FIG. 1 and FIGS. 5 (a) and 5 (b), the second lock member 3 is fitted into a thread trough r at the tip of the long bolt 1 and has a spring pressure that the material has. It is bound and fixed by the urging force of (see Fig. 2 (a)). Further, the second lock member 3 acts to reduce (tighten) the coil diameter when a force is applied to the inside of the intermediate portion 3f or 3g due to its coil shape. That is, when either the left or right rotational force is applied to the long bolt 1, the intermediate portion 3f or 3g abuts against the wall portions 4d and 4f of the case 4, respectively, and the line of the screwed portion tightens the male screw portion. work. For example, when there is an impact or the like due to engine vibration or a road surface level difference, the long bolt 1 has either one of the intermediate portions 3f and 3g with the knobs 3a and 3b extending from the coil portion 3c. Since it abuts on the portions 4d and 4f, the rotation of the long bolt 1 is restricted, and the length of the control cable 11 does not change.

In order to adjust the length of the control cable 11, first, as shown in FIG. 6 (a), the leg pieces 2a, 2b of the first lock member 2 are grasped with one hand and sandwiched in the direction of the arrow P1. While pressing, it is pushed up in the P2 direction shown in the figure to release (release) the female screw portion 2f from the male screw portion 1b of the long bolt 1 (see FIG. 6B). When the long bolt 1 is moved in the axial direction with the free hand and the first locking member 2 is pushed down at a generally desired position, the female screw portion 2f is screwed into the male screw portion 1b of the long bolt 1 (FIG. 6 ( B)) and the axial lock is completed.
Next, if the knobs 3a and 3b of the second lock member 3 are picked with the other finger and both are pressed inward as shown in FIG. Since the coil portion 3c moves away from the wall portions 4d and 4f and is separated from the male screw portion 1b of the long bolt 1, the long bolt 1 can be rotated. A normal continuous length fine adjustment can be performed by screwing the long bolt 1 that has become rotatable with the first lock member 2. After the adjustment, if the knobs 3a and 3b of the second lock member 3 are released, the state shown in FIG. 2 (a) is obtained, and the long bolt 1 is tightened by the coil portion 3c of the second lock member 3. The fine adjustment Sm and coarse adjustment S (see FIG. 7) of the control cable 11 are completed by the above procedure.

As mentioned above, although preferred embodiment regarding the outer length adjustment apparatus 10 of the control cable which concerns on this invention was described, this invention is not limited to the structure described in the said embodiment, and does not deviate from the meaning. The configuration can be changed as appropriate within the range.

Field of use

The control cable outer length adjusting device 10 of the present invention is applicable not only to vehicles, but also to bicycles, construction equipment, agricultural equipment, office equipment, medical equipment, medical beds, doors, doors, and other various equipment. Fine adjustment and rough adjustment of the length of the control cable can be realized with simple procedures (methods), and subtle deviations (slack) can be achieved without being affected by engine vibration, vibration due to road surface steps, impact, etc. Etc.), which is a versatile and effective invention.

DESCRIPTION OF SYMBOLS 10 ... Outer length adjustment apparatus 11 of a control cable, 12 ... Control cable 11a, 12a ... Outer casing 11b ... Inner cable 1 ... Long bolt 1a ... Head 1b ... Male screw portion 1c ... insertion hole 2 ... first locking members 2a, 2b ... leg pieces
2c, 2d ... projection 2f ... female screw part 3 ... second lock members 3a, 3b ... knob 3c ... coil part 3d ... wire diameter 3f, 3g ... intermediate part 4 ... Case 4a ... Concave guide portion 4d, 4f ... Case wall portion

Claims (3)

An insertion hole for inserting a control cable composed of an outer casing and an inner cable is formed in the central portion of the shaft, and an insertion hole for communicating the inner cable in the longitudinal direction of the shaft is formed. The formed long bolt with a head, the first lock member that restricts the movement of the long bolt in the axial direction, and the movement of the long bolt that is fitted to the tip screw portion of the long bolt are restricted in the rotational direction. The second lock member and the long bolt are guided in the axial direction, the first lock member is guided in a direction orthogonal to the axial direction, and the second lock member is guided in either the axial direction or the orthogonal direction. A control cable outer length adjusting device characterized by comprising a guide case. The second lock member is a torsion spring-like clip made of a steel wire or a synthetic resin material having a wire diameter that is press-contacted to the surface of the thread of the male screw portion and can be fitted to the valley portion of the male screw portion. Oh, characterized in that it comprises a knob portion for opening the clamping of the male screw portion at both ends of the clip, the outer length adjusting device of the control cable according to claim 1. The second lock member is made of a steel wire or a synthetic resin material having a shape in which the screwed portion of the wire acts to tighten the male screw portion when a left or right rotational force is applied to the long bolt. and characterized in that the clip of the torsion spring-like, outer length adjusting device of the control cable according to claim 2.

Images