JP6576837B2 - Long body for moving parts - Google Patents

Description

  The present invention relates to a machine tool, industrial robot, etc., such as a cable for transmitting electric power or a control signal between a fixed part and a movable part in an apparatus in which the movable part repeatedly moves linearly within a predetermined range with respect to the fixed part, or The present invention relates to a movable body long body used as a pipe for supplying air pressure or the like, in a state where bending is partially restricted.

  In machine tools, industrial robots, etc., it is a mechanism that performs complex work such as processing, conveyance, mounting, etc. using a mechanism part that moves relative to the fixed device body, and the mechanism part that performs such work is Although it is a movable part that moves within a predetermined range with respect to the fixed apparatus main body, in order to properly operate various mechanisms provided in such a movable part, there is a gap between the movable part and the fixed apparatus main body. They are connected by cables for supplying electric power and transmitting control signals, pipes for supplying hydraulic pressure and air pressure, and the like.

  In such a device, although the cable, tube, etc. provided between the movable part and the fixed part have moderate flexibility and need to follow the movement of the movable part, they move randomly. Therefore, since it must be avoided that the operation of the apparatus is hindered, a protection guide guide that keeps the movement of such cables in an appropriate state has been proposed. One example is disclosed in Japanese Patent Application Laid-Open No. 2003-83473.

  The conventional protective guide guide includes a flexible tube made of a synthetic resin that encloses a plurality of cables and is connected to a cable moving end portion and a cable fixed end portion, and is enclosed and fitted to the flexible tube at a predetermined interval. It is the structure which has many bending | flexion control units provided united.

  In recent years, there has been proposed a cable that can maintain a state of moving on a certain track without any problem without using such protection guides for the cables. No. 259658 and JP-A-2009-259659.

  Furthermore, the present applicant has proposed cables and the like that can solve the conventional problems with a simple structure and can maintain an appropriate moving state without using a protective guide, and examples thereof are patented. This is disclosed in Japanese Patent No. 5438753 and Japanese Patent No. 5767409.

JP 2003-83473 A JP 2009-259658 A JP 2009-259659 A Japanese Patent No. 5438753 Japanese Patent No. 5676409

  The conventional protective guide guide has a configuration shown in Patent Document 1, and the protective guide guide can move within a certain movement region while maintaining a predetermined extension posture and bending posture. By moving cables, tubes, and the like through the guide, it is possible to appropriately regulate the moving regions of these cables, tubes, and the like.

However, in this example of Patent Document 1 , the cost of the apparatus is increased by using a separate protection guide guide in addition to the cable, and the bending restriction units are mutually matched by the movement of the protection guide guide accompanying the movement of the movable part. contact, the contact portions by abrasion, have led to the generation of dust. In addition, noise is also generated as each bending regulating unit repeatedly contacts and separates from each other.

Examples of such Patent Document 1 contrast, conventional cable shown in Patent Documents 2 and 3, by not using protection guides, was to obtain a beneficial effect in terms of the dust and noise . On the other hand, in the examples of Patent Documents 2 and 3, in order to maintain the parallelism in the U-shaped parallel portion of the cable in the use state, as a result of adjusting the flexibility of the entire cable, the movement is performed. Smooth bending at the place where it should originally bend is less likely to occur, and the structure inside the cable is complicated and specialized, resulting in increased cable manufacturing costs.

  Furthermore, the conventional strip materials such as cables proposed by the present applicant shown in Patent Documents 4 and 5 include one or a plurality of cable portions containing a core wire or a tube, and the outer periphery of the cable portion. It has a structure that includes a block body that is arranged in a plurality of blocks in the longitudinal direction of the cable part, and ensures rigidity against bending in directions other than the direction where the block body side of the cable part is outside. Even if the cable part receives an external force, it bends only in the direction in which the side where the block body exists is outside, and an unintended unnecessary bend does not occur, and the position of the bent part changes when the movable part moves. It has the excellent feature of being stable.

  However, since the block body that regulates bending in Patent Documents 4 and 5 is actually made of a material close to the sheath of the cable portion, even if it is given a moderate thickness and has increased rigidity, it is elastic. Deformation cannot be completely suppressed, and when external force is applied to the cable section to bend the direction in which the block body is placed on the inner circumference side, the block bodies that are pressed against each other are slightly elastic Due to the deformation, a slight bending deformation of the cable portion in the above-described direction may occur. Although these deformations are negligible and usually pose almost no problem, for example, when applied to a device in which the moving distance of the movable part is large and the maximum length of the straight part of the cable part is large, the deflection of the straight part is large. There was a problem that the amount may increase and exceed the allowable amount.

  The present invention has been made to solve the above-mentioned problems, and although it is a simple structure, it does not cause unintended unnecessary bending, can be bent appropriately in the direction to be bent, and hinders movement of the movable part. It aims at providing the elongate body for movable parts which is not.

  The movable body elongate body according to the present invention has one or more core wires and / or tubes and one or more flexible cable portions and a part of the outer periphery of the cable portion. The cable part length is such that the connecting pieces are made of an elastically deformable material that is attached integrally and arranged in a row at a predetermined interval in the longitudinal direction of the cable part, and covers at least both ends of the connecting part in the longitudinal direction of the cable part. Provided with a restriction block body made of a material that is harder than the cable portion and the connecting piece and is rigid enough not to be deformed by an external force of a size that can be applied to the cable portion in use, arranged in a large number in the hand direction. It is.

  As described above, in the present invention, a plurality of elastic deformations are possible with respect to a cable portion containing a core wire through which electricity or light passes as an operating element and / or a pipe through which air, hydraulic oil, or the like as an operating element passes. The connecting pieces are arranged side by side in the longitudinal direction of the cable portion, a restriction block body that is combined with the connection pieces and is hard and does not easily deform is provided, and the side on which the connection pieces and the restriction block bodies exist is the inner peripheral side. With regard to the bending of the cable part in the direction, the restricting block bodies closely arranged in the longitudinal direction of the cable part come into contact with each other, and the distance between them cannot be reduced any further. Even if an external force is applied to bend the connecting piece and the side where the restricting block body is located on the inner peripheral side, the restricting block bodies are in close contact with each other in the longitudinal direction of the cable portion. In addition, the restricting block bodies are pressed against each other while the restricting block bodies are not elastically deformed and maintain the shape, so that there is almost no room for movement in an attempt to bend in the direction of the cable portion. It is possible to appropriately regulate the deformation related to the bending, and to reliably prevent the bending in the direction in which the side where the connecting piece and the regulating block body are present is inside.

  In addition, with respect to the bend in which the cable portion is on the side where the connecting piece and the restriction block body are present, the restriction block bodies are separated from each other, and the movement of the cable portion related to this bend is directly restrained. In addition, the elastically deformable connecting piece that connects the restricting block body and the cable part can follow the deformation of the cable part at least at the attachment part to the cable part, and the bending deformation of the cable part can be allowed without stress. The cable part can be bent without being affected by the restriction block body. As a result, the cable part is subjected to an external force and is bent only in the direction in which the side where the connecting piece and the restriction block body are present is outside. Therefore, without using a separate protective guide guide or the like, unintentional unnecessary bending does not occur when moving one end of the movable body elongate body within a predetermined movement area. While maintaining a substantially U-shaped form of the non-bending portion and linear movement of the end portion can be stably performed.

  Further, in the movable body elongate body according to the present invention, if necessary, each restriction block body is formed with a projecting portion that projects to the cable portion side and is located on the side of the cable portion, and the cable portion is predetermined. When the portion is bent to a predetermined curvature at which the protruding portions of the plurality of restriction block bodies at the predetermined portion come into contact with each other at the end of the cable portion in the longitudinal direction, the curvature at the predetermined portion is further increased. The movement of the cable portion is restricted based on the contact between the protruding portions, and is in a bending restricted state.

  As described above, in the present invention, the bending curvature is defined by the abutment between the protruding portions of the restriction block body toward the cable portion, thereby providing a complicated structure that adds a predetermined rigidity to the cable portion. Even if not, an appropriate bent state can be obtained at the bent portion, and the manufacturing cost can be suppressed while appropriately controlling the bending of the cable portion.

  Moreover, the long part for movable parts which concerns on this invention is integrated with the convex part which the said block for a restriction | protrusion protrudes toward the other block for a restriction | limiting adjacent on the one side of a cable part longitudinal direction as needed. A recess that allows insertion of the protrusion protruding from another restriction block adjacent on the other side in the longitudinal direction of the cable portion is formed, and the protrusion Relative movement of the restriction block body with respect to the other restriction block body in accordance with the bending deformation of the cable portion is performed by closely arranging in the longitudinal direction of the cable portion and being inserted in the recesses in the other restriction block bodies adjacent to each other. It is formed as a protruding length that can be maintained even after passing.

  As described above, in the present invention, in both the state where the cable portion is not bent and the bent state, the protruding portion protruding in the longitudinal direction of the cable portion from the restricting block body extends to the recessed portion of the adjacent other restricting block body. The direction in which the cable part bends as a whole of the restriction block body by maintaining the insertion state and making it difficult to cause a deviation other than the relative movement accompanying the bending of the cable part of another restriction block body adjacent to the restriction block body. It can prevent deformation in the lateral direction, etc. other than the cable, and does not cause any deformation other than bending in the direction with the preset regulating block body as the outer peripheral side. Can not be stable.

  Further, the movable part long body according to the present invention is attached to the restriction block body by engaging with the connecting piece, if necessary, while maintaining the engaged state with the connecting piece. The deformation | transformation of the connection piece accompanying a deformation | transformation of a part is permitted.

  As described above, in the present invention, the restriction block body, which is a separate member from the connection piece, is engaged with the connection piece so as to be connected to the cable portion via the connection piece, and the restriction block body is connected to the connection piece. By connecting the connecting piece to the cable part in the manufacturing process and connecting the restricting block body to the cable part through the connecting piece by allowing deformation of the connecting piece while maintaining the engagement integrated state of Separate from the restriction block body when the cable part bends and deforms in a bendable direction. By reducing the restraint that the connecting piece of the member receives from the restriction block body, the connecting piece can be easily deformed to follow the cable part, and unnecessary stress is generated on the connecting piece, thereby improving its durability. Raise That.

It is a partially cutaway side view of the elongate body for movable parts which concerns on the 1st Embodiment of this invention. It is a perspective view of the principal part in the linear part of the elongate body for movable parts which concerns on the 1st Embodiment of this invention. It is a front view in the connecting piece engagement state of the block body for regulation in the elongate body for movable parts concerning a 1st embodiment of the present invention. It is a right view in the connection piece engagement state of the block body for regulation in the elongate body for movable parts concerning a 1st embodiment of the present invention. It is AA sectional drawing of FIG. It is a top view of the block body for control in the elongate body for movable parts concerning a 1st embodiment of the present invention. It is BB sectional drawing of FIG. It is CC sectional drawing of FIG. It is cable part attachment process explanatory drawing of the block body for a regulation in the elongate body for movable parts which concerns on the 1st Embodiment of this invention, and a connection piece. It is mutual contact state explanatory drawing of the control block protrusion part in the bending part of the elongate body for movable parts which concerns on the 1st Embodiment of this invention. It is a connection maintenance state explanatory drawing of the connection piece and cable part in the elongate body for movable parts which concerns on the 1st Embodiment of this invention. It is engagement process explanatory drawing with the connection piece of the other block for regulation in the elongate body for movable parts which concerns on the 1st Embodiment of this invention. It is a front view in the connecting piece engagement state of the block body for regulation in the other long body for movable parts concerning a 1st embodiment of the present invention. It is a right view in the connection piece engagement state of the block body for control in the other long body for movable parts concerning a 1st embodiment of the present invention. It is a bottom view in the connection piece engagement state of the block body for regulation in the other long body for movable parts concerning a 1st embodiment of the present invention. It is a front view in the connection piece engagement state of the block body for regulation in the other long body for movable parts concerning a 1st embodiment of the present invention. It is a front view in the connection piece engagement state of the block body for regulation in the elongate body for movable parts concerning a 2nd embodiment of the present invention. It is a side view of the block body for regulation in the elongate body for movable parts concerning a 2nd embodiment of the present invention. It is a side view of the connection piece in the elongate body for movable parts which concerns on the 2nd Embodiment of this invention. It is engagement process explanatory drawing with the connection piece of the block body for a regulation in the elongate body for movable parts which concerns on the 2nd Embodiment of this invention. It is a front view in the connection piece engagement state of the block body for regulation in the elongate body for movable parts concerning a 3rd embodiment of the present invention.

(First embodiment of the present invention)
Hereinafter, the movable body elongate body according to the first embodiment of the present invention will be described with reference to FIGS.
In each said figure, the elongate body 1 for movable parts which concerns on this embodiment is equipped with the several cable parts 11, 12, 13, 14, which have one or more core wires and / or tubes, and have flexibility. 15, 16 and connecting pieces 17 that are integrally attached to a part of the outer periphery of these cable parts 11, 12, 13, 14, 15, 16 and are arranged in large numbers at predetermined intervals in the cable part longitudinal direction, Each of the connecting pieces 17 is engaged with each other, and a restriction block body 18 is provided which is arranged in a densely arranged state in the longitudinal direction of the cable portion.

  The cable portions 11, 12, 13, 14, 15 and 16 are long working materials for passing the working elements, that is, the core wires 11a, 12a, 13a, 14a and 15a for passing electricity and light as the working elements. And / or the pipe | tube 16a which lets the air and hydraulic oil as an operation | movement element pass is coat | covered with sheath 11b, 12b, 13b, 14b, 15b, 16b, and it is the structure which incorporates one or more. These six cable portions 11, 12, 13, 14, 15, 16 formed in a circular cross-sectional shape are connected three by three, and finally combined with the connecting piece 17 and the restriction block body 18. In the state, they are arranged in a substantially strip shape. In addition, when using what has a pipe | tube as a cable part, a sheath may be abbreviate | omitted and you may make it connect and integrate with another cable part and a block body as a pipe | tube directly as a cable part.

  The connecting piece 17 is formed as a shape in which a plurality of protruding portions 17a are provided on the surface of a plate-like portion having a rectangular shape in plan view, and the sheath 11b of the cable portions 11, 12, 13, 14, 15, 16 12b, 13b, 14b, 15b, 16b are made of the same material or another elastically deformable material that easily adheres to the sheath. Also, the horizontal width is adjacent to each other, and the three cable portions are integrally attached to the outer periphery of the three cable portions, and are arranged side by side in the longitudinal direction of the cable portions.

  The connecting piece 17 is attached to the outer periphery of the cable portion on the surface opposite to the surface side where the protrusions 17a are provided, and the restriction block body 18 is disposed on the side where the plurality of protrusions 17a are provided. The projecting portion 17a is for generating an engaged state with the restricting block body 18, and the tip portion of the projecting portion 17a is configured to be thicker than the portion near the plate-like portion.

  The connecting piece 17 is preferably flexible enough not to hinder the bending deformation of the cable portion when attached to the cable portion, and preferably has the same elastic deformation characteristics as the sheath of the cable portion. As long as it can be integrally connected to the outer periphery of each cable part, it may be formed of a material different from the sheath of the cable part.

  The restriction block body 18 is harder than the cable portions 11, 12, 13, 14, 15, 16 and the connecting piece 17, and can be added to the cable portions 11, 12, 13, 14, 15, 16 in use. Both ends of the connecting piece 17 in the longitudinal direction of the cable portion are formed of a material having rigidity that is not deformed by a large external force (for example, a single material or a composite material such as hard plastic, metal, ceramic, glass, wood, and stone). This is a configuration in which a large number of cables are arranged side by side in the longitudinal direction of the cable while covering the cable.

  The restricting block body 18 has a structure in which two shape portions that cover a main part of the connecting piece 17 excluding a tip attached to each projection 17a of the connecting piece 17 and a portion attached to the cable portion are connected in a cover shape. In this configuration, the two connecting pieces 17 are engaged with each other.

  The restriction block body 18 is engaged with two connection pieces 17 respectively attached to different sets of cable portions, and as a result, is connected to the six cable portions 11, 12, 13, 14, 15, 16. It will be integrated and the state which has arranged six cable parts in parallel will be produced.

  The restricting block body 18 is provided with a plurality of holes 18a into which the protrusions 17a of the connecting piece 17 can be inserted. By restricting the protrusion 17a of the connecting piece 17 whose tip is thickened into the hole 18a of the restricting block body 18 whose entrance is made smaller than this, the restricting block body 18 is engaged. While permitting the deformation of the connecting piece 17 due to the bending deformation of the cable portion (see FIG. 11), it is possible to maintain an integrated structure that is difficult to come off from the connecting piece 17 even when an external force is applied.

  The state of engagement between the restriction block body 18 and the connecting piece 17 is such that, in the component manufacturing stage, a resin material to be a connecting piece is filled into a mold cavity into which the previously formed restriction block body 18 has been incorporated. 17 is obtained as a result of molding 17. In other words, the engaging block is brought into an integrated state from the beginning of the formation of the connecting piece 17 without going through the process of engaging the individually formed restriction block body 18 and the connecting piece 17. And when attaching the connection piece 17 to a cable part outer periphery, the connection piece 17 of the state integrated with this block body 18 for regulation will be attached to a cable part outer periphery.

  In addition, the part close to the cable portions 11, 12, 13, 14, 15, 16 of the restriction block body 18 has a chamfered corner portion in the rectangular block shape, and is integrated with the restriction block body. When the piece 17 is bonded and integrated with the cable portion with an adhesive, the space between the restriction block body 18 and the cable portion generated by the chamfered portion is connected to a slight gap between the cable portion and the restriction block body 18. It is possible to prevent the adhesive that has oozed out from between the piece 17 and the cable part from reaching the cable part and the restricting block body 18 by mistake, and the side where the restricting block body 18 exists is outside. When the cable portion is bent as described above, it is possible to appropriately and easily ensure that the restriction block body 18 does not hinder the bending deformation of the cable portion.

  The restriction block 18 is an intermediate portion sandwiched between two portions that engage with the connecting piece 17 and protrudes from the cable portion mounting position of the connecting piece 17 in the engaged state to the side of the cable portion. The plate-like protrusion 18b having a substantially trapezoidal shape when viewed from the side is formed.

  When the predetermined portion of the cable portion is bent to a predetermined curvature, the protruding portions 18b of the plurality of adjacent restriction block bodies 18 existing along the predetermined portion are brought into contact with each other at the hypotenuse portion of the trapezoidal protruding portion 18b. By fitting (see FIGS. 10 and 11), the bending portion is in a state where the movement of the cable portion in a direction in which the curvature is further increased at the predetermined portion is restricted.

  The inclination angle of the trapezoid hypotenuse part of the protrusion 18b that defines the degree of bending of the cable portion for each restriction block body 18 is a predetermined number of restriction block bodies until the cable portion is bent in a U shape and the direction is changed by 180 °. With the 18 protruding portions 18b in contact with each other, the bending radius of the cable portion is set to a predetermined value.

  Thus, the curvature of the bending of the cable portion is limited by the abutment between the protruding portions 18b protruding to the cable portion side of the restricting block body 18, so that a predetermined rigidity is added to the cable portion. Even without a structure, an appropriate bent state can be obtained at the bent portion, and excessive bending of the cable portion can be prevented to improve durability and reliability.

  Further, a protruding convex portion 18c having a protruding shape is integrally disposed at one portion of the restriction block body 18 in the longitudinal direction of the cable portion. In addition, a concave portion 18d into which the convex portion 18c of another regulating block body can be inserted is formed in the other side portion of the regulating block body 18 in the longitudinal direction of the cable portion.

  The concave portion 18d is a groove-like shape that does not restrain the convex portion 18c in the thickness direction of the restriction block body 18 that is perpendicular to both the cable portion longitudinal direction and the cable portion juxtaposition direction (regulation block body longitudinal direction). It is a concave shape. And the said convex part 18c is extended to the one side of the cable part longitudinal direction from the other part of the integral control block body 18, and the state inserted in the recessed part 18d in the other adjacent control block body 18, It is formed as a sufficient length that can be maintained even after the relative movement of the restriction block body 18 with respect to the other restriction block body 18 due to the bending deformation of the cable portion. That is, the concave portion 18d is in a state in which the convex portion 18c is always inserted.

  Next, a use state of the movable body long body according to the present embodiment will be described. The movable body elongate body 1 is disposed in a predetermined region in a state bent in a U-shape (see FIG. 1). One end of the movable body elongate body 1 is a moving end, and the other end is a fixed end, and the position of the bent portion changes corresponding to the movement of the moving end.

  At this time, it is assumed that an external force such as gravity tries to bend the cable portions 11, 12, 13, 14, 15, and 16 in such a direction that the side where the connecting piece 17 and the restriction block body 18 are present. In this case, even if the cable portion is to be bent from the straight state, the restriction block bodies 18 do not deform with the force normally applied by the hard restriction block bodies while the restriction block bodies 18 abut against each other in the longitudinal direction of the cable portion. Thus, the adjacent restriction block bodies cannot move relative to each other in the direction in which they approach each other. As a result, the cable portion 11, 12, 13, 14, 15, 16 is prevented from being bent without giving a room for bending deformation such that the side where the restriction block 18 is present is provided inside. . In this way, the linear portions other than the intermediate bent portion among the respective portions of the U-shaped movable portion elongate body are straight lines without being slightly curved by the restriction by the restriction block bodies 18 described above. The state can be maintained.

  On the other hand, when the cable portions 11, 12, 13, 14, 15, and 16, which are opposite to the bending direction, are bent so that the side where the connecting piece 17 and the restriction block body 18 are present is outside (see FIG. 1, see FIG. 10), the cable portions are deformed so that the interval between the restriction block bodies 18 is widened, so that the restriction block bodies 18 can move relative to each other in the direction along the outer periphery of the bent portion of the cable portion, It does not hinder further bending deformation of the cable part. As a result, the cable portions 11, 12, 13, 14, 15, 16 can be bent in a direction in which the side where the connecting piece 17 and the restriction block body 18 are present is outside, and the movable body long body 1 is moved. During the movement operation of the end, the middle portion of the long body is appropriately bent to be bent in the U shape so that the movement operation can be performed stably.

  However, in this case, when the cable portion is bent to a predetermined curvature, the protruding portions 18b of the adjacent restricting block bodies 18 between the protruding portions 18b located on the side of the cable portion among the restricting block bodies 18 Each of them is brought into contact with each other, and a bending restriction state in which movement of the cable portion in a direction in which the curvature is further increased is restricted. As a result, the movable body elongate body 1 does not bend so as to further increase the curvature beyond a preset appropriate bending state.

  Thus, during the movement of the moving end of the movable part long body 1, unintended and unnecessary bending occurs in each part of the movable part long body 1 other than the one part that is bent so as to greatly change the direction into a U shape. Therefore, the moving operation is performed stably.

  Further, in each restricting block body 18, the protruding protrusion 18 c of the restricting block body 18 is always inserted into the recessed portion 18 d formed in another adjacent restricting block body. Thereby, regardless of whether the cable portion 11, 12, 13, 14, 15, 16 is bent or not bent as a straight line, it is restrained by the engagement of the convex portion 18c and the concave portion 18d. Deviations other than relative movement of the other restricting block body adjacent to the predetermined restricting block body 18 due to the bending of the cable portion in the bendable direction, in particular, the restricting block coinciding with the cable portion juxtaposition direction It is difficult to cause a shift in the body longitudinal direction.

  Therefore, when moving the moving end of the movable body elongate body 1, the cable portions 11, 12, 13, 14, 15, 16 have a lateral direction other than the bending direction, based on the difficulty in shifting the restriction block bodies. It is possible to prevent deformation in the direction and the like, and in particular, it is easy to maintain the linear shape of the linear portions of the cable portions 11, 12, 13, 14, 15, 16 taking a U-shaped bent form. The behavior of 11, 12, 13, 14, 15, 16 can be stabilized.

  In addition, in the cable parts 11, 12, 13, 14, 15, and 16 having a circular cross-sectional shape, the connection part with the connection piece 17 is limited to a very small region, but even in such a state, the cable parts 11, 12, 13 are also included. , 14, 15 and 16, the adjacent parts of the connecting piece 17 are connected and integrated as a material excellent in affinity with the adhesive (the same material or a material that can be easily bonded), so that both can be integrated without difficulty. The connection state can be reliably maintained. Further, the portions of the cable portions 11, 12, 13, 14, 15, 16 and the elastically deformable connecting piece 17 that are adjacent to each other can maintain a connected state even after being deformed due to the bending of the cable portion.

  Then, the restriction block body 18 is engaged with the connecting piece 17, and the cable portions 11, 12, 13, 14, 15, 16 and the restriction block body 18 are connected, thereby making it easier than the cable portion. Even in the case of the restriction block body 18 made of hard material that does not deform, the restriction block body 18 is not separated from the cable portion side by the stress caused by repeated bending accompanying movement, and is integrated with the cable portion via the connection piece 17. Thus, the connecting piece 17 and the restricting block body 18 can maintain the function of restricting the bending direction to the life of the cable portions 11, 12, 13, 14, 15, 16.

  Thus, in the movable body long body according to the present embodiment, a plurality of elastically deformable connections to the cable portions 11, 12, 13, 14, 15, 16 containing the core wire and / or the tube. The pieces 17 are arranged side by side in the longitudinal direction of the cable portion, and a restricting block body 18 that is combined with the connecting piece 17 and is hard and does not easily deform is provided, and the side where the connecting piece 17 and the restricting block body 18 exist is provided inside. Regarding the bending of the cable portion in the direction of the peripheral side, the restriction block bodies 18 closely arranged in the longitudinal direction of the cable portion come into contact with each other, and the mutual distance cannot be further reduced. Even if an external force is applied to bend the cable portion in the direction in which the side where the connecting piece 17 and the restriction block body 18 are present is the inner peripheral side, each restriction block in the longitudinal direction of the cable portion. 18 is not only in close contact with each other, but also maintains the shape without elastic deformation while the close-adhering regulating block bodies 18 are pressed against each other, so that there is almost no room for movement to bend in the direction of the cable portion. Therefore, it is possible to appropriately regulate the deformation related to the bending of the cable portion, reliably prevent the bending in the direction in which the side where the connecting piece 17 and the blocking block 18 are present, and to straighten the portion that should not be bent. Can maintain the shape

  Further, for the bending in which the cable portions 11, 12, 13, 14, 15, 16 are on the outside where the connecting piece 17 and the restriction block body 18 exist, the restriction block bodies 18 are separated from each other, The movement of the cable portion related to this bending is not directly restricted, and the elastically deformable connecting piece 17 follows the deformation of the cable portion at the attachment portion to the cable portion, so that the bending deformation of the cable portion is not stressed. Since it is allowable, the cable portion can be bent without being affected by the restriction block body 18, and as a result, the cable portion is subjected to an external force so that the side where the connecting piece 17 and the restriction block body 18 exist is directed outward. Therefore, unintentional unnecessary bending occurs when moving one end of the movable body elongate body within a predetermined movement area without using a separate protective guide or the like. , The entire while maintaining a substantially U-shaped form of a straight line other than the bent portion, the movement of the one end portion can be stably performed.

  In addition, in the elongate body for movable parts which concerns on the said embodiment, the six cable parts 11, 12, 13, 14, 15, 16 are arranged in parallel in the shape of a strip, and these cable parts 11, 12 arranged in parallel are arranged. 13, 13, 15, 16, the connecting pieces 17 and the restricting block body 18 are arranged adjacent to each other. However, the present invention is not limited to this, and only one cable portion or six cable portions are provided. It can also be set as the structure arranged in parallel as other than this. In addition, when a plurality of cable parts are arranged in parallel, each of the connecting pieces 17 and the restricting block body 18 are adjacent to all the cable parts. Each connecting piece 17 and the restricting block body 18 may be arranged adjacent to each other only on the outer periphery. In addition, there is nothing limited to a configuration in which a plurality of cable portions arranged in parallel are used as a circular cross-sectional shape of the same outer diameter, and some or all of the outer diameters of the plurality of cable portions are arranged in parallel, these Can be configured to be connected and integrated with each connecting piece 17 and restricting block body 18 respectively.

  Moreover, in the elongate body for movable parts which concerns on the said embodiment, the connection piece 17 and the block body 18 for regulation are integrated with respect to each cable part 11, 12, 13, 14, 15, 16, and these are respectively cable. In particular, the connection piece 17 and the restriction block body 18 manufactured in advance as an engaged state are attached to and integrated with a group in which a plurality of cable portions are arranged side by side. However, the method of integrating them is not limited to this. For example, after the connecting piece 17 and the restricting block body 18 are manufactured separately, in the assembly stage of the movable body long body, FIG. As shown in the drawing, after only a plurality of connecting pieces 17 are arranged in a longitudinal direction at a predetermined interval in the cable portion, the restricting block bodies 18 are respectively attached to the connecting pieces 17. Is engaged, may be a connection piece 17 and the regulating block body 18 so as to obtain a state integrated with the cable portion arranged in the cable the longitudinal direction of both.

  Moreover, in the movable body long body according to the embodiment, the protruding portion 18b of the restriction block body 18 is provided at an intermediate position between the two portions engaged with the connecting piece 17 of the restriction block body 18, The bent portion of the cable portion does not bend beyond a predetermined curvature in a state where it is sandwiched between the set of cable portions 11, 12, 13 and another set of cable portions 14, 15, 16 However, the present invention is not limited to this, and as shown in FIGS. 13, 14, and 15, the protruding portion 18 e of the restricting block body 18 is provided at the side end portion of the restricting block body so as to protrude. The part 18e can also appear outside the cable part. Also in this case, as in the above-described embodiment, when the cable portion is bent to a predetermined curvature, the protruding portion 18e comes into contact with the protruding portions 18e of the adjacent restricting block bodies 18 and further increases the curvature. The movement of the cable portion can be limited.

  In the movable body long body according to the embodiment, the restriction block body 18 is provided with a protrusion 18b, and the protrusion 18b is in contact with the protrusion 18b of another adjacent restriction block body 18. The cable portion is configured to limit the curvature of bending of the cable portion, but when the curvature of bending of the cable portion can be appropriately regulated by means other than the protruding portion, for example, the rigidity of the cable portion itself, FIG. As shown in FIG. 5, the restriction block body 18 may be configured not to have a protruding portion.

  Moreover, in the movable body long body according to the embodiment, the restriction block body 18 can be engaged with the two connecting pieces 17, and the restriction block body 18 is attached to a set of different cable portions, respectively. A structure in which the six cable portions 11, 12, 13, 14, 15 and 16 are connected and integrated as a result by engaging with the two connecting pieces 17, resulting in a state in which the six cable portions are arranged in parallel. However, the present invention is not limited to this, and as shown in FIGS. 13 and 16, only one connecting piece 17 is attached to the six cable portions in parallel, and the restricting block body 18 is also connected to this one connection. The number of cable parts to be attached to the connecting piece, such as a configuration in which the connecting block unit and the cable part can be connected and integrated with one connecting piece so that only one piece can be engaged, The number of regulating block body engages coupling piece may be set as appropriate.

(Second embodiment of the present invention)
A movable body elongated body according to a second embodiment of the present invention will be described with reference to FIGS.
In each of the drawings, the movable body elongate body according to the present embodiment is similar to the first embodiment in that a plurality of cable portions 21, 22, 23, 24, 25, 26, a connecting piece 27, and a regulating member are used. On the other hand, the connecting piece 27 and the restricting block body 28 are formed as separate independent members, and each connecting piece is attached to the cable portions 21, 22, 23, 24, 25, and 26 in advance. 27 and each restriction block body 28 are engaged, and the cable portions 21, 22, 23, 24, 25, 26 and the restriction block body 28 are connected and integrated.

  The cable portions 21, 22, 23, 24, 25, and 26 have one or a plurality of built-in cables and / or tubes that are each covered with a sheath, as in the first embodiment. Therefore, detailed description is omitted.

  The connecting piece 27 is formed of the same material as the sheath of the cable portions 21, 22, 23, 24, 25, 26 or another elastically deformable material that easily adheres to the sheath, and includes six cable portions Out of 21, 22, 23, 24, 25, 26, a set of three cable portions connected to each other is set to a width adjacent to any of the three cable portions, and the outer periphery of these three cable portions. And are arranged side by side in the longitudinal direction of the cable portion.

  On the opposite side of the connecting piece 27 from the side attached to the outer periphery of the cable portion, a protrusion 27a for causing the engagement with the restricting block body 28 is provided (see FIG. 19). The projecting portion 27a has a tip portion that is thicker than a portion near the cable portion.

  The restriction block body 28 is harder than the cable portions 21, 22, 23, 24, 25, 26 and the connecting piece 27 and can be added to the cable portions 21, 22, 23, 24, 25, 26 in use. It is formed of a material having rigidity that is not deformed by an external force, and is arranged in a large number in the cable portion longitudinal direction so as to cover both ends of the connection piece 27 in the cable portion longitudinal direction.

  The restricting block body 28 is configured to cover a main part of the connecting piece 27 excluding one side portion of the connecting piece 27 and a portion attached to the cable portion, and is in a state of being engaged with the connecting piece 27. It is a configuration that can be attached. As in the first embodiment, the restricting block body 28 is engaged with the two connecting pieces 27 respectively attached to different sets of cable portions, resulting in the six cable portions 21, 22, 23, 24, 25, and 26 are connected and integrated, resulting in a state in which six cable portions are arranged in parallel (see FIG. 17).

  Specifically, the restriction block body 28 is provided with a groove 28a into which the protrusion 27a of the connecting piece 27 can be inserted (see FIG. 18). By making the protruding portion 27a formed larger than the portion near the cable portion of the connecting piece 27 into an engagement state in which the groove opening portion is inserted from the side into the groove 28a of the restricting block body 28 having a smaller groove opening portion. The restricting block body 28 realizes an integrated structure in which the connecting piece 27 is less likely to come off from the restricting block body 28 while allowing the connecting piece 27 to be deformed following the deformation of the cable portion. As for the engagement state of the restriction block body 28 and the connecting piece 27, these two members are manufactured separately, and are actually engaged and integrated (see FIG. 20).

  As in the first embodiment, the restricting block body 28 has a configuration in which a protruding portion 28b that protrudes toward the cable portion from the cable portion mounting position of the connecting piece 25 and is located on the side of the cable portion is formed.

  When the predetermined portion of the cable portion is bent to a predetermined curvature, the protruding portions 28b of the restricting block bodies 28 at the predetermined portion are in contact with each other, so that the cable portion is directed to further increase the curvature at the predetermined portion. It becomes the bending restriction state which restricts the movement of.

  In this way, the curvature of the cable portion is defined by the abutment between the protruding portions 28b of the restriction block body 28 protruding toward the cable portion side, so that a predetermined rigidity is added to the cable portion. Even if it is not made into a simple structure, an appropriate bent state can be obtained at the bent portion, the excessive bending of the cable portion can be prevented, durability and reliability can be improved, and cost can be reduced.

  Next, a use state of the movable body long body according to the present embodiment will be described. Similar to the first embodiment, the movable body elongate body is disposed in a predetermined region in a bent state in a U shape, with one end serving as a moving end and the other end serving as a fixed end. The position of the bent portion is changed corresponding to the movement of the end. At this time, even if the external force or the like tries to bend the cable portions 21, 22, 23, 24, 25, and 26 so that the side on which the restriction block body 28 exists is inside, the hard restriction block bodies 28 are mutually connected. The cable portions 21, 22, 23, 24, 25, and 26 are prevented from bending without contacting and relatively moving.

  On the other hand, when bending the cable portions 21, 22, 23, 24, 25, 26 corresponding to the state bent in the U-shape so that the side where the restriction block body 28 exists is outside, Each of the restricting block bodies 28 can move relative to each other in the direction along the outer periphery of the bent portion of the cable portion, and does not hinder further bending deformation of the cable portion, and the cable portions 21, 22, 23, 24, 25, 26 are It can be bent. As a result, the cable portions 21, 22, 23, 24, 25, and 26 are bent only in a direction in which the side on which the restriction block body 28 exists is the outside. In this way, during the movement operation of the moving end of the movable part long body, unintended unnecessary bending does not occur in each part of the movable part long body, and the movement operation is performed stably.

  However, in this case as well, as in the first embodiment, when the protruding portion 28b of the restricting block body 28 bends the cable portion to a predetermined curvature, the adjacent ones come into contact with each other to further increase the curvature. Thus, the movement of the cable portion in the direction to be performed is restricted, and the movable body elongate body does not bend so as to further increase the curvature beyond an appropriate bending state set in advance.

  As described above, in the movable body long body according to the present embodiment, the restriction block body 28, which is a separate member from the connecting piece 25, is engaged with the connecting piece 27, and the cable portion via the connecting piece 27 When the connecting block 27 is attached to the cable portion in the manufacturing process by allowing the connecting block 27 to be deformed while the restricting block body 28 is engaged and integrated with the connecting piece 27. And the timing for connecting the regulating block body 28 to the cable portion via the connecting piece 27 can be set separately, so that the degree of freedom in the manufacturing process can be increased and more efficient production of a long body can be achieved. Is deformed so that the connecting piece 27, which is a member different from the restricting block body 28, receives a restraint from the restricting block body 28 and follows the cable portion. Reasonably be caused unnecessary stress to the connecting piece 27 is prevented from occurring.

(Third embodiment of the present invention)
In the movable body elongate body according to each of the first and second embodiments, a plurality of cable portions formed in a circular cross-sectional shape are arranged side by side in a substantially strip shape, and are connected and integrated with each other. However, the present invention is not limited to this, and as a movable body long body according to the third embodiment, as shown in FIG. 21, a plurality of core wires and / or tubes are built in and flexible. It is also possible to employ a configuration in which a single flat strip-like cable portion 31 is used and a plurality of connecting pieces 37 are arranged side by side in the longitudinal direction of the cable portion 31 on a part of the outer periphery of the cable portion 31.

  Specifically, the cable portion 31 is formed in a flat strip shape having a predetermined thickness dimension, and is a long working material for passing an operating element, that is, a core wire 31a for passing electricity or light as an operating element, 31b, 31c, 31d, 31e and / or a pipe 31f through which air or hydraulic oil as an operating element is passed is covered with a sheath 31g and a plurality of pipes are built in. Each core wire and / or pipe is divided and arranged in parallel in the cable portion width direction for each type and function.

  Since the flat strip-shaped cable part 31 and the connecting piece 37 can secure a sufficient contact area, in the state where the cable part 31 and the connecting piece 37 are integrated by bonding or the like, this integrated state can be maintained more firmly, The connecting piece 37 is not separated from the cable portion 31 due to stress due to repeated bending accompanying the movement, and the regulating block body 38 that is connected and integrated by the connecting piece 37 limits the bending direction to the life of the cable portion 31. The function can be maintained.

  In addition to the case where the flat belt-like cable portion 31 is employed in this way, each cable portion shown in each of the embodiments includes a linear body other than a long working material such as a core wire or a tube, for example, a cable. A tension member that strengthens and adjusts the rigidity and elasticity of the part can also be arranged, and the bending direction is restricted together with the restricting block body, so that the unintended bending of the movable part is not necessary. In addition, the bending portion can be set to a desired curvature by adjusting the rigidity of the cable portion.

DESCRIPTION OF SYMBOLS 1 Long body for movable parts 11, 12, 13 Cable part 11a, 12a, 13a Core wire 11b, 12b, 13b Sheath 14, 15, 16 Cable part 14a, 15a Core wire 14b, 15b, 16b Sheath 16a Tube 17 Connection piece 17a Protruding part 18 Restriction block 18a Hole 18b Protruding part 18c Protruding part 18d Concave part 18e Protruding part 21, 22, 23 Cable part 24, 25, 26 Cable part 27 Connecting piece 27a Protruding part 28 Restricting block body 28a Groove 28b Projection part 31 Cable part 31a, 31b, 31c Core wire 31d, 31e Core wire 31f Pipe 31g Sheath 37 Connection piece 38 Block for regulation

Claims (4)

One or a plurality of flexible cable sections having one or a plurality of core wires and / or tubes; and
A connecting piece made of an elastically deformable material that is integrally attached to a part of the outer periphery of the cable part and arranged in a large number at a predetermined interval in the longitudinal direction of the cable part,
Wherein is arranged a multiplicity closely to the cable the longitudinal direction of, the harder the cable portion and the connecting piece, and the magnitude of the external force to get applied to the cable portion of the use status and regulating block body made material having a stiffness which is not deformed equipped with a,
The movable part is characterized in that the restriction block body is provided for each connection piece in the longitudinal direction of the cable portion, with one restriction block body covering at least both ends of the connection piece in the longitudinal direction of the cable portion. Long body. In the elongate body for movable parts according to claim 1,
Each of the regulating block bodies is formed with a protruding portion that protrudes toward the cable portion and is positioned on the side of the cable portion,
When the predetermined portion of the cable portion is bent to a predetermined curvature at which the protruding portions of the plurality of restriction block bodies at the predetermined portion come into contact with each other at the end of the cable portion in the longitudinal direction, the curvature at the predetermined portion is further increased. The movable part long body is characterized in that it is in a bending restricted state in which the movement of the cable part in a direction to be restricted is restricted based on the contact of the protruding parts. In the elongate body for movable parts according to claim 1 or 2,
The restricting block body is integrally formed with a convex portion protruding toward another restricting block body adjacent on one side in the cable portion longitudinal direction, and another adjacent on the other side in the cable portion longitudinal direction. A concave portion is formed to allow the convex portion protruding from the restriction block body to be inserted;
The restriction block body accompanying the bending deformation of the cable portion is a state in which the protrusions are closely arranged in the longitudinal direction of the cable portion and are inserted into the recesses in the other adjacent restriction block bodies. It is formed as a projecting length that can be maintained even after a relative movement with respect to another regulating block body. In the elongate body for movable parts in any one of the said Claims 1 thru | or 3,
The restriction block body is attached to be engaged with the connecting piece, and allows deformation of the connecting piece accompanying deformation of the cable portion while maintaining the engaged state with the connecting piece. Long body for department.

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