JP2015020812A - Take-up device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress significant inhibition of oscillation of a take-up device.SOLUTION: A first opening 17A to which a hose for supplying high pressure air is connected is disposed on a position deviated from a main shaft 7 of a take-up drum 5 to the support shaft 13 side. Therefore, a range where the hose for supplying moves following to oscillation of a take-up device 1 can be reduced. Namely, the take-up device 1 oscillates around the support shaft 13, so that as a distance between the support shaft 13 and the first opening 17A becomes larger, the range where the hose for supplying moves becomes larger. The first opening 17A is disposed on a position deviated from the main shaft 7 of the take-up drum 5 to the support shaft 13 side. Therefore, the range where the hose for supplying moves can be reduced. Therefore, significant inhibition of oscillation of the take-up device 1 may be suppressed.

Description

  The present invention relates to a winding device that winds up a flexible measure. Note that the measure means, for example, a wire, an electric cord, a rope, a hose or the like through which fluid flows.

  For example, the hose storage reel described in Patent Document 1 has a pipe-shaped rotation shaft that rotatably supports the hose groove, and one end of the hose wound around the hose groove is connected to the rotation shaft, and An opening communicating with the hose is provided at one longitudinal end of the rotating shaft.

  And the supply hose which the fluid supplied to a hose distribute | circulates is connected to the opening part provided in the longitudinal direction end of the rotating shaft. For this reason, the moving direction of the hose wound around the hose groove wheel is a direction substantially orthogonal to the rotation axis. On the other hand, the supply hose is connected to one end in the longitudinal direction of the rotating shaft, that is, the opening from a direction parallel to the rotating shaft.

Japanese Examined Patent Publication No. 61-54712

  By the way, when the winding device for winding the measure body is supported so as to be swingable, the moving direction of the measure body wound up such as a hose and the direction in which the supply hose is connected are orthogonal to each other. And there is a high possibility of hindering the swinging of the winding device.

  In other words, since the supply hose and the like are connected to the rotation shaft from a direction parallel to the rotation shaft, if the winding device swings, the supply hose and the like interfere with surrounding walls and the like, and the winding device swings. Disturb movement. In particular, when the rigidity of the supply hose or the like is high, there is a possibility that the swinging of the winding device is significantly hindered.

  In the present invention, in view of the above points, even if the moving direction of the measure body and the direction in which the supply hose and the like are connected are orthogonal to each other, the swinging of the winding device is significantly hindered. It aims at suppressing.

  In order to achieve the above object, the present invention provides a winding drum that is rotatably supported in a winding device for winding a flexible measure body (3), and winds the measure body (3). A take-up drum (5) to be taken, a support shaft (13) provided at a position displaced from the take-up drum (5) and supporting the apparatus main body in a swingable manner, and a casing for housing the take-up drum (5). A casing (11) having a first opening (17A) connected to the measure body (3) wound around the winding drum (5) and opened on the outer surface of the casing, the first opening (17A) is provided at a position shifted from the rotating shaft (7) of the winding drum (5) toward the support shaft (13).

  And in this invention, the 1st opening part (17A) to which a supply hose etc. is connected is provided in the position which shifted | deviated from the rotating shaft (7) of the winding drum (5) to the support shaft (13) side. . For this reason, in this invention, the range which a supply hose etc. move with the rocking | fluctuation of a winding apparatus can be made smaller than the winding apparatus which concerns on patent document 1. FIG.

  That is, the winding device according to the present invention swings around the support shaft (13). Therefore, as the distance between the support shaft (13) and the first opening (17A) increases, the range in which the supply hose and the like move increases. And since the winding device which concerns on patent document 1 is provided with the opening part equivalent to the 1st opening part (17A) of this invention in the edge part of a rotating shaft, the range which a supply hose etc. move is growing.

  In contrast, in the present invention, the first opening (17A) is provided at a position shifted from the rotating shaft (7) of the take-up drum (5) toward the support shaft (13). Etc. can be made smaller than the winding device according to Patent Document 1. Therefore, it can suppress that the rocking | fluctuation of a winding device is inhibited significantly.

  The “supply hose or the like” according to the present invention means a member that is directly or indirectly connected to the measure body (3) via the first opening (17A). Therefore, for example, if the measure body (3) is a hose, the “supply hose or the like” means a hose. Further, for example, if the measure body (3) is an electric cord, “supply hose or the like” means an electric cord.

  Incidentally, the reference numerals in parentheses for each of the above means are examples showing the correspondence with the specific means described in the embodiments described later, and the present invention is indicated by the reference numerals in the parentheses of the above respective means. It is not limited to specific means.

1 is a front view of a winding device 1 according to an embodiment of the present invention. In the winding device 1 which concerns on embodiment of this invention, it is a figure which shows the state which removed the 2nd casing 11B. It is AA sectional drawing of FIG. 1 is a perspective view of a winding device 1 according to an embodiment of the present invention. In the winding device 1 which concerns on embodiment of this invention, it is a figure which shows the state which removed the 1st casing 11A. It is a front view of ratchet mechanism 20 concerning a 1st embodiment of the present invention. FIG. 4 is a partially enlarged view of FIG. 3. (A) And (b) is a figure which shows the support part 25, the pawl member 23, and the driven node 29. FIG. It is a figure which shows the cam groove 31 of the ratchet mechanism 20 which concerns on 1st Embodiment of this invention. (A) is a front view of the cam 27 which concerns on 1st Embodiment of this invention, (b) is AA sectional drawing of Fig.8 (a). It is a figure which shows the action | operation of the ratchet mechanism 20 which concerns on embodiment of this invention. It is a figure which shows the action | operation of the ratchet mechanism 20 which concerns on embodiment of this invention. It is a figure which shows the action | operation of the ratchet mechanism 20 which concerns on embodiment of this invention. It is a figure which shows the action | operation of the ratchet mechanism 20 which concerns on embodiment of this invention. It is a figure which shows the action | operation of the ratchet mechanism 20 which concerns on embodiment of this invention. It is a figure which shows the usage example of the winding apparatus 1 which concerns on embodiment of this invention.

  The “embodiment of the invention” described below shows an example of the embodiment. In other words, the invention specific items described in the claims are not limited to the specific means and structures shown in the following embodiments.

  And this embodiment applies this invention to the winding device 1 which winds up the hose 3, as shown in FIG. The hose 3 is a measure in which a fluid such as high-pressure air circulates and has flexibility. Hereinafter, the hose 3 is also referred to as a measure body 3.

  In addition, the arrow etc. which show the direction attached | subjected to each figure were described in order to make it easy to understand the relationship between each figure, and this invention is not limited to the direction attached | subjected to each figure. Absent. At least one member or part described with at least a reference numeral is provided, except where “plurality”, “two or more”, and the like are omitted.

1. Outline of Winding Device As shown in FIG. 2, the winding device 1 according to this embodiment includes a winding drum 5 that winds up the measure body 3. The winding drum 5 is rotatably supported by a main shaft 7 shown in FIG. As shown in FIG. 2, the winding drum 5 has a substantially cylindrical winding portion 5A and a substantially disk-shaped flange portion 5B.

  The measure body 3 is wound around the outer peripheral surface of the winding portion 5A. As shown in FIG. 3, the flange portion 5B is provided on both ends of the winding portion 5A in the axial direction, and is integrated with the winding portion 5A. A substantially disc-shaped first hub body 5C and second hub body 5D are provided in the winding portion 5A.

  The outer peripheral end sides of the first hub body 5C and the second hub body 5D are integrated with the winding portion 5A. At the center of each of the first hub body 5C and the second hub body 5D, a cylindrical bearing portion 5E through which the main shaft 7 passes is provided. The pair of bearing portions 5 </ b> E functions as a sliding bearing that enables the winding drum 5 to rotate with respect to the main shaft 7.

  A spring 9 is accommodated in the winding drum 5. The spring 9 applies an elastic force to the winding drum 5 to rotate the winding drum 5 in the direction in which the measure body 3 is wound. The spring 9 is a “spring spring” in which a leaf spring is spiral, and is housed in a space between the first hub body 5C and the second hub body 5D.

  Of the spring 9, the center side of the spiral is connected to the main shaft 7, and the outer diameter end of the spiral is connected to the winding drum 5. When the measure body 3 is pulled out from the winding drum 5, the spiral shape is tightened while the elastic deformation amount of the spring 9 is increased.

  For this reason, when the measure body 3 is pulled out, the spring 9 applies an elastic force in a direction to wind up the measure body 3 to the winding drum 5. Therefore, in the winding device 1 according to the present embodiment, a ratchet mechanism 20 that restricts the winding drum 5 from rotating in the direction in which the measure body 3 is wound is provided.

  Hereinafter, of the rotation directions of the winding drum 5, the direction in which the measure body 3 is wound is referred to as "winding direction". In addition, the direction opposite to the “winding direction” of the rotation direction of the winding drum 5 is referred to as the “drawing direction”.

  The winding drum 5 and the ratchet mechanism 20 are accommodated in the casing 11. The casing 11 includes a first casing 11A, a second casing 11B, a third casing 11C, and the like. The first casing 11A, the second casing 11B, and the third casing 11C are made of resin.

  The first casing 11 </ b> A covers the winding drum 5 and the like from one axial end side of the main shaft 7. The second casing 11B covers the winding drum 5 and the like from the other axial end side. The third casing 11C is disposed between the first casing 11A and the second casing 11B and covers the outer peripheral side of the winding drum 5.

  As shown in FIG. 7, a bolt portion 7 </ b> A having a male screw is provided on one axial end side of the main shaft 7. One end side in the axial direction of the main shaft 7 is screwed to the first casing 11A by a nut 7B fitted in the bolt portion 7A.

  Metal washers 7C are disposed on both sides of the first casing 11A and facing the nut 7B and the bolt portion 7A. A spring seat 7E is provided between the nut 7B and the washer 7C to prevent loosening. As shown in FIG. 3, the other axial end of the main shaft 7 is supported by the second casing 11B via a metal washer 7D.

  The support shaft 13 shown in FIG. 2 is a shaft that supports the apparatus main body, that is, the winding device 1 so as to be swingable, and is provided at a position shifted from the winding drum 5. Specifically, the support shaft 13 extends in a direction perpendicular to the rotating shaft of the winding drum 5, that is, the main shaft 7, at a position shifted outward from the outer peripheral end of the flange portion 5 </ b> B.

  A bracket 15 is assembled to the support shaft 13. The bracket 15 is rotatably attached to the support shaft 13 and has a mounting portion 15 </ b> A on the side opposite to the support shaft 13. The user can install the winding device 1 in a swingable state by fixing and attaching the attachment portion 15A to a wall, a pillar, or a ceiling.

  As shown in FIG. 4, the casing 11 is provided with a first opening 17 </ b> A that opens on the outer surface of the casing 11. As shown in FIG. 2, the first opening 17 </ b> A opens in a direction parallel to the extending direction of the support shaft 13 (left and right direction in FIG. 2) at a position shifted from the main shaft 7 toward the support shaft 13. Yes.

  The first opening 17 </ b> A is connected to the measure body 3 (hose) wound around the winding drum 5 and communicates with the hose. That is, as shown in FIG. 3, the support shaft 13 is constituted by a cylindrical tube (pipe) in which one end side in the axial direction communicates with the other end side, and fluid can flow therethrough. The first opening 17 </ b> A communicates with the support shaft 13.

  A rotary joint (also referred to as swivel) 19 is provided on the main casing 7 on the second casing 11B side. The rotary joint 19 and the support shaft 13 communicate with each other via the first connection pipe 18A. The measure body 3 (hose) wound around the take-up drum 5 and the rotary joint 19 communicate with each other via the second connection pipe 18B. For this reason, even if the winding drum 5 rotates, the communication state between the measure body 3 (hose) wound around the winding drum 5 and the first opening 17A is maintained.

  The rotary joint 19 includes a cylindrical shaft portion 19A, a pair of joint portions 19B and 19C that can rotate with respect to the shaft portion 19A, and the like. A first connection pipe 18A is connected to the joint portion 19B. A second connection pipe 18B is connected to the joint portion 19C.

  The shaft end side of the shaft portion 19A is closed by a plug 19D. Between the pair of joint portions 19B and 19C and the outer peripheral surface of the shaft portion 19A, a packing capable of sliding contact such as an O-ring 19E is disposed.

  As shown in FIG. 2, the first connection pipe 18 </ b> A communicates with the support shaft 13 at the intermediate portion in the longitudinal direction of the support shaft 13. A first opening 17 </ b> A is provided on one end side in the longitudinal direction of the support shaft 13. A second opening 17 </ b> B is provided on the other end side in the longitudinal direction of the support shaft 13.

  For this reason, the imaginary line L1 passing through the center of the first opening 17A and the center of the second opening 17B is parallel to the support shaft 13. That is, in the present embodiment, the virtual line L1 is a position that overlaps the support shaft 13.

  The second opening 17 </ b> B communicates with the support shaft 13. For this reason, the second opening 17B can communicate with the first opening 17A and the measure body 3 (hose) wound around the winding drum 5. That is, in the present embodiment, the first opening portion 17A and the second opening portion 17B can exhibit the same function only in different positions.

  Therefore, in the present embodiment, the right side of the drawing is the first opening 17A and the left side of the drawing is the second opening 17B. For example, the left side of the drawing is the first opening 17A, and the right side of the drawing is the second opening 17B. As described above, the present invention is established.

  Note that the first opening 17A shown in FIG. 4 is closed by a plug 17C. Therefore, when supplying high pressure air or the like from the first opening 17A to the measure body 3 (hose) wound around the winding drum 5, it is necessary to remove the plug 17C.

2. Ratchet Mechanism 2.1 Outline of Ratchet Mechanism The ratchet mechanism 20 according to this embodiment regulates the rotation direction of the winding drum 5. As shown in FIG. 5, the ratchet mechanism 20 includes a ratchet gear 21, a pawl member 23, a support portion 25, a cam 27, a driven node 29, and the like.

<Ratchet gear>
The ratchet gear 21 is assembled to the first hub body 5C in a state in which the ratchet gear 21 can be rotationally displaced about the main shaft 7. That is, the ratchet gear 21 is provided with a long hole 21 </ b> C whose major axis direction coincides with the circumferential direction. The first hub body 5C is provided with a cylindrical boss portion 5G that fits into the elongated hole 21C.

  The boss portion 5G can be displaced relative to the ratchet gear 21 along the major axis direction of the long hole 21C. And the hexagon socket head cap screw 5F is fastened and fixed to the boss | hub part 5G. For this reason, the ratchet gear 21 can be rotationally displaced around the main shaft 7 within the long diameter range of the long hole 21C.

  The spring 21 </ b> D applies an elastic force to the ratchet gear 21. The direction of the elastic force is a direction in which the ratchet gear 21 is displaced toward the direction of the drawer with respect to the first hub body 5C. For this reason, the ratchet gear 21 is normally stationary with respect to the first hub body 5C at a position where the boss portion 5G contacts one end of the long hole 21C in the long-diameter direction.

  As shown in FIG. 6, a large number of protruding teeth 21 </ b> A are provided on the outer periphery of the ratchet gear 21. These teeth 21A are asymmetrical with respect to a virtual line Lo connecting the top 21B and the rotation center O1.

  Specifically, the angle θ1 formed between the inclined surface on the “winding direction” side of the virtual line Lo and the virtual line Lo is 0 ° or less, and the inclination is on the “drawing direction” side of the virtual line Lo. An angle θ2 formed by the surface and the virtual line Lo is larger than 0 degree.

<Patent member>
The pawl member 23 is displaced between a meshing position that meshes with the ratchet gear 21 and a spaced position that is separated from the ratchet gear 21. When the pawl member 23 meshes with the teeth 21A from the “winding direction” side, the ratchet gear 21 is prohibited from rotating in the “winding direction”. That is, “the pawl member 23 is in the meshing position” refers to a state in which the pawl member 23 meshes with the teeth 21 </ b> A from the “winding direction” side.

  When the impact force when the pawl member 23 and the ratchet gear 21 are engaged with each other is large, the spring 21D is elastically deformed, and the ratchet gear 21 is slightly on the “winding direction” side with respect to the first hub body 5C. Rotate. Thereby, the impact force generated when the pawl member 23 and the ratchet gear 21 mesh with each other is absorbed by the spring 21D.

<Supporting part>
The support part 25 supports the pawl member 23 so as to be displaceable. Specifically, the support portion 25 is an axial member that is positioned on one end side in the longitudinal direction of the pawl member 23 and supports the pawl member 23 so as to be swingable. And the support part 25 is located on the action line L2 of the force F which acts on the pawl member 23 from the tooth | gear 21A.

  For this reason, the support part 25 receives the force (henceforth this force is called prohibition force) F which acts on the pawl member 23 from the ratchet gear 21. In addition, in FIG. 6, although the action line L2 is drawn so that it may pass along the axial center of the support part 25, this embodiment is not limited to this. That is, any position may be used as long as the supporting portion 25 can receive the prohibiting force F.

  Incidentally, the direction of the action line L2, that is, the prohibiting force F, is approximately the direction orthogonal to the contact surface between the tooth 21A and the pawl member 23. Therefore, if the support portion 25 is provided in a direction perpendicular to the contact surface and shifted from the contact surface in the “winding direction”, the support portion 25 receives the forbidden force F. it can.

  Moreover, the support part 25 which concerns on this embodiment is assembled | attached to the 1st casing 11A, as shown in FIG. That is, the first casing 11A is provided with a bearing portion 11D. The shaft-like support portion 25 is rotatably inserted into the bearing portion 11D. For this reason, the support part 25 rotates or swings around a center line L2 parallel to the center line direction L1 of the winding drum 5.

  The bearing portion 11D has a sliding contact portion 11E and a cylindrical portion 11F. The sliding contact portion 11E is a metal member that makes sliding contact (hereinafter also referred to as sliding contact) with the outer peripheral surface of the shaft-shaped support portion 25. The sliding contact portion 11E is inserted into the resin cylindrical portion 11F.

  The support portion 25 is integrated with the pawl member 23 and the follower node 29 as shown in FIGS. 8 (a) and 8 (b). That is, the pawl member 23 and the follower node 29 rotate or swing together in an integrated manner around the center line L2. And the prohibiting force F which acts on the support part 25 via the pawl member 23 is finally received by the first casing 11A.

  Incidentally, the retaining ring 25A shown in FIG. 7 restricts the support portion 25 from moving to the winding drum 5 side. The follower node 29 is in slidable contact with a flange portion 11G provided on the other axial end side of the sliding contact portion 11E.

  For this reason, the support portion 25 rotates or swings without moving in the axial direction parallel to the center line L2. The metal washer 25B prevents the metal retaining ring 25A from coming into direct contact with the resin first casing 11A.

<Cam>
The cam 27 receives a force from the winding drum 5 and is displaced. That is, as shown in FIG. 7, the cam 27 is provided with a shaft hole 27A. A shaft portion 21E is inserted into the shaft hole 27A. The shaft portion 21 </ b> E is a shaft integrated with the ratchet gear 21. That is, the shaft portion 21 </ b> E rotates integrally with the winding drum 5 via the ratchet gear 21.

  The shaft portion 21E is formed in a cylindrical shape, and the main shaft 7 penetrates in the center line direction. The shaft end side of the main shaft 7 is fixed to the first casing 11 </ b> A, and the winding drum 5 and the ratchet gear 21 are supported by the main shaft 7. The inner peripheral surface of the shaft portion 21E and the outer peripheral surface of the main shaft 7 are separated from each other.

  Between the outer peripheral surface of the shaft portion 21E and the inner peripheral surface of the shaft hole 27A, a rubber-made rotational force transmitting material 27B that is in contact with the outer peripheral surface of the shaft portion 21E and the inner peripheral surface of the shaft hole 27A is provided. . The rotational force transmitting member 27B transmits the rotation of the shaft portion 21E to the cam 27 by the frictional force generated on the outer peripheral surface of the shaft portion 21E and the inner peripheral surface and contact surface of the shaft hole 27A.

  For this reason, the cam 27 receives a force from the winding drum 5 and is rotationally displaced in the same direction as the winding drum 5. Further, when a force that hinders the displacement of the cam 27 is applied to the cam 27, the rotational force transmitting member 27B remains in contact with the outer peripheral surface of the shaft portion 21E and the inner peripheral surface of the shaft hole 27A. Slip. That is, the rotational force transmitting member 27B is in sliding contact with at least one of the shaft portion 21E and the shaft hole 27A without the cam 27 being displaced.

  In addition, the rotational force transmission material 27B according to the present embodiment is made of nitrile rubber formed in an annular shape such as an O-ring. A holding groove for holding the rotational force transmitting member 27B is provided on any one of the outer peripheral surface of the shaft portion 21E and the inner peripheral surface of the shaft hole 27A (in this embodiment, the outer peripheral surface of the shaft portion 21E). 21F is provided.

  Further, as shown in FIG. 6, the cam 27 according to the present embodiment is configured by a band plate-like cam plate extending from the main shaft 7 toward the outer peripheral side of the winding drum 5. A cam groove 31 for displacing the driven node 29 is provided on a surface of the cam 27 orthogonal to the direction of the center line of the main shaft 7. Details of the cam groove 31 will be described later.

<Following clause>
The driven node 29 is a member that displaces the pawl member 23 in conjunction with the displacement of the cam 27. That is, the driven node 29 functions as a link that transmits the displacement of the cam 27 to the pawl member 23. Specifically, as shown in FIG. 7, the driven node 29 is a strip-shaped member extending from the support portion 25 toward the shaft portion 21 </ b> E, and swings about the support portion 25.

  A contact portion 29 </ b> A that comes into contact with the cam 27 is provided on the distal end side in the extending direction of the driven node 29. The contact portion 29 </ b> A is fitted in the cam groove 31 and moves in the cam groove 31. Note that the contact portion 29A according to the present embodiment is formed in a shape in which a portion contacting the side wall of the cam groove 31 is a curved surface, for example, a columnar shape or a cylindrical shape.

  Further, a recessed portion 29B in which the contact portion 29A is retractable is provided on the distal end side in the extending direction of the driven node 29. The contact portion 29A is pressed toward the bottom of the cam groove 31 by an elastic material 29C housed in the recess 29B. For this reason, the contact portion 29 </ b> A moves in the cam groove 31 following the displacement of the cam 27 without detaching from the cam groove 31.

2.2 Cam Groove As shown in FIG. 9, the cam groove 31 has a moving locus of the contact portion 29 </ b> A “a polygon having a plurality of corner portions 31 </ b> A to 31 </ b> D”. The moving portions 31E to 31H connecting the adjacent corner portions 31A to 31D in the cam groove 31 may be either linear or curved as long as the contact portion 29A can smoothly move in the cam groove 31. It does not matter. That is, the “polygon” is not limited to a figure connected only by a straight line.

  The contact portion 29A moves in one direction in the cam groove 31. Specifically, as indicated by a two-dot chain line arrow, the movement trace of the closed curve shape is moved to the right around the paper surface. When the contact portion 29A is located at the corner portion 31A indicated by the solid line in FIG. 9, the pawl member 23 is in the meshing position as shown in FIG.

  Therefore, the corner portion 31A is called the first corner portion 31A, the corner portion 31B is called the second corner portion 31B, the corner portion 31C is called the third corner portion 31C, and the corner portion 31D is called the fourth corner portion 31D. Further, when the contact portion 29A is located at the first corner portion 31A, the pawl member 23 is in the meshing position as described above.

  Therefore, when the contact portion 29A is positioned at the first corner portion 31A, the winding drum 5, that is, the ratchet gear 21, cannot rotate in the “winding direction” but can rotate in the “drawing direction”. . Therefore, hereinafter, the rotation of the ratchet gear 21 in the “winding direction” is referred to as “forward rotation”. On the other hand, the rotation of the ratchet gear 21 in the direction opposite to the normal rotation is referred to as “reverse rotation”.

  On the other hand, when the contact portion 29A is located at any one of the second corner portion 31B to the fourth corner portion 31D, the pawl member 23 is in the separated position. That is, when the contact portion 29A is located at a corner other than the first corner 31A, the ratchet gear 21, that is, the winding drum 5, is in a state where both forward rotation and reverse rotation are possible.

  Moreover, as shown to Fig.10 (a), each corner | angular part 31A-31D is provided with the prevention part 31J. These blocking portions 31J allow the contact portion 29A to move in one direction within the cam groove 31 and prevent it from moving in the other direction.

  For this reason, for example, when the contact portion 29A is positioned at the first corner portion 31A, the contact portion 29A can be displaced toward the second corner portion 31B, but cannot be displaced toward the fourth corner portion 31D. That is, the contact portion 29A cams in the cam groove 31 that draws a closed curve only in the order of the first corner portion 31A → the second corner portion 31B → the third corner portion 31C → the fourth corner portion 31D → the first corner portion 31A. It can move in the groove 31.

  And the prevention part 31J is comprised by the level | step-difference part as shown in FIG.10 (b). The stepped portion is configured by the groove depth H1 on the backward side in the moving direction of the contact portion 29A being smaller than the groove depth H2 on the forward side in the moving direction of the contact portion 29A.

  For this reason, when the contact portion 29A is positioned at any of the corner portions 31A to 31D, the contact portion 29A is hooked and locked to the blocking portion 31J, that is, the stepped portion. Accordingly, the contact portion 29A cannot move backward in the movement direction, and moves in the cam groove 31 only in one direction, that is, in the movement direction forward side.

  On the bottom side of each of the moving parts 31E to 31H, there is provided an inclined surface 31K in which the groove depth decreases as the contact part 29A moves from the moving direction backward side to the moving direction forward side. In other words, in the present embodiment, stepped blocking portions 31J are provided in the corner portions 31A to 31D so that the groove depths on the moving direction advance side and the moving direction retract side are different. Therefore, the start point side and the end point side of the moving units 31E to 31H are connected by a smoothly continuous inclined surface 31K.

2.3 Operation of Ratchet Mechanism The contact portion 29A can swing only in the arc direction (see the broken line in FIG. 9) centering on the support portion 25. On the other hand, the longitudinal direction of each moving part 31E-31H cross | intersects with respect to the longitudinal direction of the follower node 29, ie, the direction which connects the support part 25 and the contact part 29A. For this reason, when the cam 27 rotates or swings about the main shaft 7, a force that swings the driven node 29 acts on the contact portion 29 </ b> A at the contact portion between the contact portion 29 </ b> A and the cam groove 31.

  That is, as shown in FIG. 9, when the cam 27 is rotated forward when the contact portion 29A is positioned at the first corner portion 31A, the driven node 29 is placed on the contact portion 29A with the support portion 25 as the center. A force Fo that rotates counterclockwise acts. For this reason, the contact part 29A tends to move to either the moving part 31E or the moving part 31H.

  However, since the first corner portion 31A is provided with the blocking portion 31J, the contact portion 29A cannot move toward the moving portion 31H, and moves inside the moving portion 31E toward the second corner portion 31B. Then, when the contact portion 29A reaches the second corner portion 31B while the cam 27 is rotating forward, the contact portion 29A is hooked and engaged with the second corner portion 31B as shown in FIG.

  For this reason, the contact portion 29 </ b> A applies a force F <b> 1 on the cam 27 in the direction opposite to the direction of rotation of the winding drum 5. Therefore, in the state shown in FIG. 11, slip occurs in the rotational force transmission member 27B, and the winding drum 5 continues to rotate forward while the displacement of the cam 27 is stopped.

  By the way, the spring 9 exhibits a force for rotating the winding drum 5 in the winding direction. That is, a force in the reverse direction always acts on the ratchet gear 21. On the other hand, the force that normally rotates the winding drum 5, that is, the ratchet gear 21 is a force with which the user pulls out the measure body 3 (hereinafter, this force is referred to as a pulling force).

  For this reason, when the pulling force disappears in the state in which the measure body 3 is pulled out, and the pawl member 23 is in the separated position, the ratchet gear 21 is reversed. When the contact portion 29A is positioned at the second corner portion 31B, when the drawing-out force disappears and the winding drum 5 is reversed, the cam 27 is reversed, so the contact portion 29A is moved along the moving portion 31F. It moves from the corner portion 31B to the third corner portion 31C side.

  When the contact portion 29A is positioned at the third corner portion 31C, as shown in FIG. 12, the pawl member 23 is in the separated position. For this reason, the ratchet gear 21 continues to reverse, and the measure body 3 is wound around the winding drum 5, that is, the winding portion 5A. That is, as long as the drawing force acts on the measure body 3 and the winding drum 5 does not rotate forward, the measure body 3 is wound around the winding drum 5.

  Then, when the stopper 3A provided on the distal end side of the measure body 3 is caught by the casing 11 and locked, the reverse rotation of the winding drum 5 is stopped. When the stopper 3A is locked to the casing 11 and the winding drum 5 is stopped, the contact portion 29A is located at the third corner portion 31C.

  When the contact portion 29A is positioned at the third corner portion 31C, if the pulling force acts on the measure body 3 and the cam 27 rotates in the forward direction, the contact portion 29A has a reverse side as shown in FIG. Directional force F2 acts. A moving portion 31G that connects the third corner portion 31C to the fourth corner portion 31D extends from the third corner portion 31C in the direction of the reverse rotation side. For this reason, the contact portion 29A located at the third corner portion 31C tends to move to either the fourth corner portion 31D or the second corner portion 31B.

  Note that “the moving part 31G extends in the reverse direction” means that the reverse direction is included as a component in the extending direction. Similarly, for example, “the moving part 31 </ b> H extends in the forward direction” means that the forward direction includes the forward direction as a component in the extending direction.

  However, since the blocking portion 31J is also provided in the third corner portion 31C, the contact portion 29A moves toward the fourth corner portion 31D without moving toward the second corner portion 31B. Then, when the contact portion 29A reaches the fourth corner portion 31D while the cam 27 is rotating forward, the contact portion 29A is hooked and engaged with the fourth corner portion 31D as shown in FIG.

  For this reason, the contact portion 29 </ b> A applies a force F <b> 3 opposite to the direction of rotation of the winding drum 5 to the cam 27. Therefore, in the state shown in FIG. 13, slippage occurs in the rotational force transmission member 27B, and the winding drum 5 continues to rotate normally while the displacement of the cam 27 is stopped.

  By the way, “when the contact portion 29A is positioned at the third corner portion 31C” means that the measure body 3 is wound around the take-up drum 5 or the winding of the measure body 3 is completed. That is, the stopper 3A is locked to the casing 11 and the winding drum 5 is stopped.

  Therefore, “when the cam 27 rotates forward when the contact portion 29A is positioned at the third corner portion 31C” is when the measure body 3 is pulled out from the user. Then, when the measure body 3 is pulled out by the user, that is, after “when the pulling force is applied to the measure body 3”, always “when the pulling force disappears”, that is, “the cam 27 is "When reversing".

  Further, when the cam 27 is rotating forward, as described above, a force in the reverse direction acts on the contact portion 29A. Therefore, when the cam 27 is reversely rotated, a force in the direction of the forward rotation acts on the contact portion 29A. For this reason, in order to move the contact portion 29A along the cam groove 31 when a force in the forward rotation direction acts on the contact portion 29A, the cam groove 31 has a force in the reverse rotation direction. It is necessary to extend in the direction of the reverse side when acting on.

  That is, the moving part 31G to which the contact part 29A moves when "the pulling force is acting on the measure body 3" needs to extend in the reverse direction. Then, the moving portion 31H to which the contact portion 29A moves when “when the pulling force disappears” comes after “when the pulling force acts on the measure body 3” needs to extend in the direction of the forward rotation side. There is.

  Therefore, in the present embodiment, as shown in FIG. 9, the fourth corner portion 31D is located closer to the second corner portion 31B than the virtual straight line L3 connecting the first corner portion 31A and the third corner portion 31C. ing. Thereby, the moving part 31G heading from the third corner part 31C to the fourth corner part 31D has a shape extending in the reverse direction. On the other hand, the moving part 31H heading from the fourth corner part 31D toward the first corner part 31A has a shape extending in the direction of the forward rotation side.

  When the contact portion 29A is positioned at the fourth corner portion 31D, that is, when the measure body 3 is pulled out by the user, when the pulling force disappears, the cam 27 reverses and rotates forward to the contact portion 29A. Side force acts. For this reason, the contact portion 29A moves from the fourth corner portion 31D to the first corner portion 31A along the moving portion 31H.

  And when the contact part 29A reaches | attains the 1st corner | angular part 31A, as shown in FIG. 14, the pawl member 23 will be in a meshing position. For this reason, since the force which cancels the elastic force of the spring 9 generate | occur | produces in the ratchet gear 21, rotation of the winding drum 5 stops and the state is hold | maintained.

3. Method of Using Winding Device According to This Embodiment As shown in FIG. 15, the winding device 1 according to this embodiment is in the order of the first state → the second state → the third state → the fourth state → the first state. The state changes.

  The first state is the state shown in FIG. That is, the measure body 3 is wound around the winding drum 5, or the stopper 3A is locked to the casing 11 and the winding drum 5 is stopped.

  The second state is the state shown in FIG. That is, it is when the measure body 3 is pulled out by the user in the first state. The third state is the state shown in FIG. That is, the user has stopped pulling out the measure body 3 and the pulling power has disappeared. And in the 3rd state, the drawn-out measure body 3 stops in the state.

  The fourth state is the state shown in FIG. That is, when the drawn measure body 3 is wound on the take-up drum 5, the user slightly pulls out the drawn measure body 3 to the fourth state, and then pulls out the measure body 3. Stop and extinguish the pulling power. Thereby, since the winding device 1 shifts from the fourth state to the first state, the measure body 3 is wound up.

  In addition, when increasing the pull-out length of the drawn policy object 3, after the user slightly pulls out the drawn policy object 3, the user stops the pull-out of the policy object 3, and then continues to the policy object 3 Just pull out.

  As a result, the winding device 1 shifts from the fourth state to the first state to the second state, so that the withdrawal of the measure body 3 is stopped when the withdrawal length reaches the length intended by the user. And then pull out the pulling power.

4). Features of Winding Device According to this Embodiment In this embodiment, a first opening 17A to which a high pressure air supply hose or the like is connected is provided at a position shifted from the main shaft 7 of the winding drum 5 to the support shaft 13 side. It has been. For this reason, in this embodiment, the range which a supply hose etc. move with the rocking | fluctuation of the winding apparatus 1 can be made small.

That is, since the winding device 1 swings around the support shaft 13, the range in which the supply hose and the like move increases as the distance between the support shaft 13 and the first opening 17A increases.
In the present embodiment, the first opening 17 </ b> A is provided at a position shifted from the main shaft 7 of the winding drum 5 toward the support shaft 13. For this reason, in this embodiment, the range which a supply hose etc. move can be made small. Therefore, it can suppress that the rocking | fluctuation of the winding apparatus 1 is inhibited significantly.

  In the present embodiment, the support shaft 13 extends in a direction orthogonal to the main shaft 7 of the winding drum 5, and the first opening 17 </ b> A opens in a direction parallel to the extending direction of the support shaft 13. It is characterized by having.

  In addition, in the invention which concerns on this application, the case where 17 A of 1st opening parts are opened toward the direction orthogonal to the extension direction of the support shaft 13 is also included. However, since the first opening 17A according to the present embodiment opens in a direction parallel to the extending direction of the support shaft 13, the first opening 17A is directed in a direction orthogonal to the extending direction of the support shaft 13. The range in which the supply hose or the like moves can be reduced compared to the case where the opening is opened.

  The present embodiment is characterized in that the first opening 17A is located on the axis of the support shaft 13. Thereby, in this embodiment, the range which a supply hose etc. move can be made very small. Therefore, since the winding device 1 can be swung to such an extent that the casing 11 is brought close to the surrounding wall, the usability and installation of the winding device 1 can be improved.

  The present embodiment is characterized in that it has a second opening 17B that is open on the outer surface of the casing 11 and that can communicate with the first opening 17A. Thereby, in this embodiment, as shown in FIG. 16, since several winding apparatuses 1 can be connected via the connection member 13A, the installation property at the time of installing the several winding apparatus 1 is improved. Can be improved.

  In the present embodiment, the first opening 17A and the second opening 17B communicate with each other via a cylindrical support shaft 13. Thereby, the first opening 17A and the second opening 17B can be easily communicated with each other with a simple configuration.

(Other embodiments)
In the above-described embodiment, the winding device 1 includes the ratchet mechanism 20. However, the present invention is not limited to this, and the ratchet mechanism 20 is abolished or the ratchet mechanism shown in the above-described embodiment. A ratchet mechanism 20 having a structure different from that of the structure 20 may be employed.

  In the above-described embodiment, the winding device 1 uses the hose for supplying high-pressure air as the measure body 3. However, the application of the present invention is not limited to this, and the other measure body 3 is used. May be.

  Although the support shaft 13 according to the above-described embodiment is orthogonal to the main shaft 7, the present invention is not limited to this, and for example, when the support shaft 13 and the main shaft 7 are parallel or supported The position of the shaft 13 may be a position rotated about 90 degrees around the main shaft 7 with respect to the position shown in FIG.

  In the above-described embodiment, the first opening 17A is located on the axis of the support shaft 13. However, the present invention is not limited to this. For example, the first opening 17A is the axis of the support shaft 13. When opening in a direction intersecting with the first opening 17A, the first opening 17A may open at a position shifted in parallel to the axis of the support shaft 13 or the like.

In the above-described embodiment, the second opening 17B is provided, but the present invention is not limited to this, and the second opening 17B may be eliminated.
In the above-described embodiment, the imaginary line L1 passing through the center of the first opening 17A and the center of the second opening 17B is parallel to the support shaft 13, but the present invention is not limited to this. For example, the configuration in which the second opening 17B is opened toward the direction intersecting the axial direction of the support shaft 13, or the first opening 17A and the second opening 17B communicate with each other without the support shaft 13. It may be a configuration or the like.

  In the above-described embodiment, the supply hose or the like and the measure body 3 wound around the winding portion 5A are connected via the support shaft 13, the first connection pipe 18A, the rotary joint 19, the second connection pipe, and the like. However, the present invention is not limited to this. For example, the first connecting pipe 18A and the like are eliminated, and the supply hose and the like are directly wound around the rotary joint 19 or the winding unit 5A. It is good also as a structure connected to the body 3. FIG.

  Although the casing 11 which concerns on the above-mentioned embodiment was comprised by the 1st-3rd casing 11A-11C, this invention is not limited to this, For example, the casing 11 is comprised by 2 components. Also good.

  Further, the present invention is not limited to the above-described embodiment as long as it matches the gist of the invention described in the claims.

DESCRIPTION OF SYMBOLS 1 ... Winding device 3 ... Hose (measure body) 3A ... Stopper 5 ... Winding drum 5A ... Winding part 5B ... Flange part 5C ... 1st hub body 5D ... 2nd hub body 5E ... Bearing part 5G ... Boss part 5F ... Bolt 7 ... Main shaft 7A ... Bolt part 7B ... Nut 7C ... Washer 7D ... Washer 11 ... Casing 11A ... First casing 11B ... Second casing 11C ... Third casing 11D ... Bearing part 11E ... Sliding part 11F ... Cylindrical part 11G ... Flange part 13 ... Support shaft 15 ... Bracket 15A ... Mounting part 17A ... First opening part 17B ... Second opening part 17C ... Plug 18A ... First connection pipe 18B ... Second connection pipe 19 ... Rotary joint (swivel) 19A ... Shaft part 19B ... Joint part 19C ... Joint part 19D ... Plug

Claims (6)

In a winding device that winds up a flexible measure,
A winding drum rotatably supported, the winding drum winding the measure body;
A support shaft provided at a position deviated from the winding drum and supporting the apparatus main body in a swingable manner;
A casing for storing the winding drum, the casing having a first opening connected to the measure body wound around the winding drum and opened at an outer surface of the casing;
The winding device according to claim 1, wherein the first opening is provided at a position shifted from a rotating shaft of the winding drum toward the support shaft. The support shaft extends in a direction orthogonal to the rotation axis of the winding drum,
Furthermore, the said 1st opening part is opened toward the direction parallel to the extension direction of the said support shaft, The winding apparatus of Claim 1 characterized by the above-mentioned.   The winding device according to claim 2, wherein the first opening is located on an axis of the support shaft.   The winding according to any one of claims 1 to 3, wherein the winding has a second opening that is open on an outer surface of the casing, and the second opening can communicate with the first opening. Taking device.   The winding device according to claim 4, wherein an imaginary line passing through the center of the first opening and the center of the second opening is parallel to the support shaft. The support shaft has a tubular shape in which one end side in the axial direction and the other end side communicate with each other.
The winding device according to claim 5, wherein the first opening and the second opening communicate with each other through the support shaft.

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