JP2015051693A - Slow development flapper device of vehicle lifting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slow development flapper device of a vehicle lifting device.SOLUTION: A platform includes a base end section 10b supported by a power lifting section mounted on a vehicle and a flapper disposed at a tip in a slow development flapper device of a vehicle lifting device. In the platform, the tip flapper has a flapper side plate with opened bearing holes 13 disposed in base sections 12a at one end of right and left ends or both the ends, a platform hinge 14 with an opened screw hole 16 is stood, a bolt 15 journaling the flapper side plate base sections 12a is inserted into the screw hole 16, a nut 17 is fastened to the platform hinge 14, a collar 18 is fitted between a head of the bolt 15 and the platform hinge 14, the bearing holes 13 of the flapper side plate base sections 12a are fitted to the collar 18 to be rotatably supported, and a disc spring 19 is disposed between base section side surfaces 12a1 of the flapper side plate base sections 12a and a side surface 14b of the platform hinge 14.

Description

  The present invention relates to a slow deployment flapper device that is disposed at the tip of a platform of a vehicle lifting device.

  In Patent Document 1, a support shaft 3 that protrudes in parallel to the outside is provided on the loading portion 1a of the lifting platform 1 so as to be separated from the front and rear by a predetermined interval. The left and right lever 2a is pivotally supported, and a left and right grounding operation lever 5 having a grounding portion at the tip is pivotally supported at the projecting end of the rear pivot so that the left and right can be rotated integrally inside the flap left and right levers. The engaging portion 2a1 extended from the shaft support portion of the flap left and right levers and the distal end portion of the operation lever are configured to cross each other over a required width, and the engaging hole 4 and the engaging shaft 7 are related to each other. And an automatic lift for a vehicle elevator in which the other end of the torsion bar, one end of which is fixed to the loading portion, is connected to the left and right grounding levers. A flapper device is disclosed.

  In Patent Document 2, a vehicle-side flapper that is pivotably supported at the vehicle side end of the left and right sides of the getting-on / off platform is provided with a support shaft for an interlocking rod projecting laterally below a base shaft provided on one side thereof. Then, the intermediate part of the interlocking rod is rotatably supported, and a vertically long connecting hole opened on the upper side of the interlocking rod is fitted with an interlocking pin fixed to the corresponding side surface of the vehicle side flapper. The vehicle side flapper undulation is formed by connecting the tip of the rod of the electric cylinder, whose front end is pivotally supported by the bracket provided at one of the left and right side portions, to the connection bearing hole established in An apparatus is disclosed.

  In Patent Document 3, the rear flapper is supported at the rear end of the platform so as to rotate about the flapper support shaft, and then the flapper is provided with a lock mechanism for locking in an upright state and a release pedal thereof, and the rotation provided on the platform. In a rear flapper device for a platform in a vehicle lifting / lowering device that performs a drive standing operation in conjunction with a drive unit and a lying operation due to its own weight, a standing state is connected to a standing cam state detection unit provided on a side plate of the rear flapper. Rear flapper standing state detection limit switch for detecting the rear flapper lock state detection limit switch for detecting the position of the contact cam portion formed on the lock plate of the rear flapper lock mechanism, and the intermediate gear or the driven gear of the rotary drive unit That detects the gear position by connecting to the protrusions Translocation and stop position detecting limit switch corresponding respectively to become provided apparatus is disclosed on the platform.

JP 7-215120 A JP 2005-14689 A JP 2009-40123 A

  The device described in Patent Document 1 is free to get on and off by automatically lowering the flapper when the elevating platform 1 touches down, and the elevating platform 1 automatically rises and lowers when it takes off. The development of an automatic standing and lying device that automatically raises and lowers a flapper that prevents falling off the platform 1 by raising and lowering the lifting platform 1 was performed.

  Similarly, the device disclosed in Patent Document 2 allows the elevator platform 1 to be freely lowered and boarded or lowered when the elevator platform 1 is grounded, and the elevator platform 1 is electrically raised when the elevator platform is released. Thus, there was a development of an electric stand-up / down device for a flapper that prevents the elevator platform 1 from falling down.

  The device described in Patent Document 3 has been in the development of an electric standing and lying device that performs an upright operation and a overturning operation of a flapper by an operation mechanism that operates in an intricate manner by electric drive.

  A flapper is attached to the front end of the platform of the vehicle lifting device to facilitate boarding. The flapper is deployed by operating the lock release lever. However, the simplest bearing mechanism that has reduced the cost of the conventional method is free to rotate and collides with the road surface to generate a large impact sound. In the present invention, a device that eliminates the impact sound during deployment by applying friction to the rotating part of the flapper is proposed, and a complicated mechanism for automating the raising / lowering operation of the flapper is provided in a simple basic configuration. An object of the present invention is to provide an elevating device for a vehicle provided with a flapper standing and lying device that is advantageous in terms of cost.

  In a platform in which a base end is supported by a support shaft on a power elevating unit mounted on a vehicle, and a flapper is provided at least at the front end, the front end flapper has a bearing hole at the base at one or both ends of the left and right. An open flapper side plate is provided, and a platform hinge is erected at one or both ends of the left and right ends of the platform tip, and a bolt that pivotally supports the base of the flapper side plate is screwed into the platform hinge. A screw hole is opened, and the head protrudes outward from the outer surface of the platform hinge into the screw hole of the platform hinge, and a bolt is screwed into the screw hole protruding inward from the inner surface of the platform hinge. And tighten the nut to the inside surface of the platform hinge to tighten the bolt And a collar is fitted between the head of the bolt and the platform hinge, and a bearing hole in the base of the flapper side plate is rotatably fitted in the collar, and the flapper side A slow deployment flapper device for a vehicle lifting device in which a disc spring is provided between a side surface of a base portion of a plate and a side surface of a platform hinge.

  A flat washer may be provided between the side surface of the base of the flapper side plate and the head of the bolt.

  The inner diameter hole of the disc spring may be loosely fitted to the outer peripheral surface of the collar, and one end surface of the collar may be connected to the side surface of the platform hinge.

  One surface of the flat washer may be arranged so as to be connected to the tightening surface of the head of the bolt, and the other opposite surface may be arranged to be connected to the other end surface of the collar.

  The base part of the flapper side plate is formed such that a standing abutting portion having a standing abutting surface on an outer peripheral edge of a required radius centering on the bearing hole and a lying abutting portion having a prone abutting surface are separated by a required angle. It may be formed.

  The platform of the platform may be arranged on the base end side of the platform hinge in parallel with the axis of the bolt, and support shafts having left and right ends protruding from the left and right side surfaces of the platform may be rotatably supported. It is.

  In the portion of the support shaft that protrudes from the left and right side surfaces of the support shaft, there are formed abutment claws whose front end abuts the abutment abutment surface and the abutment abutment surface of the flapper side plate, and the base end side is formed in the lever portion It is good also as what the operation butt rod to be fixed is fixed and deployed.

  The support shaft is provided with an urging spring having one end engaged or fixed and the other end engaged or fixed to the platform, and a support provided in a mountain shape in which the fixed position support portion and the operation rotation stop portion are bent back and forth. A plate is disposed on the platform so as to face the operation abutment rod, and the operation shaft can be freely rotated until it collides with the operation rotation stop portion on the other side. The operation abutment rod may be rotated by an urging force so as to collide with a fixed position support and stop and support at a fixed position.

  A disc spring is inserted between the platform hinge and the flapper side plate, the collar prevents the disc spring from being displaced from the center of the bolt, and the disc spring can be bent by tightening the bolt.

  In order to prevent the bolt from rotating during the rotation of the tip flapper, it was possible to securely fix the bolt to the platform hinge using not only the screw standing on the platform hinge but also the nut.

  Since the rotational resistance is generated by bending the disc spring, the resistance can be adjusted by tightening the bolt.

  In addition, since the flapper side plates of the front end flapper are on the left and right, the deployment of the slow deployment flapper device of the vehicle lifting and lowering device of the present invention can be selected on one side or both sides according to the weight of the front end flapper. .

  The slow-expanding flapper device for a vehicle lifting / lowering device according to the present invention is simple, robust, and low-cost, and can be deployed at a slow speed, and can provide a robust / low-cost vehicle lifting / lowering device. .

1 is an overall side view of a vehicle lifting apparatus according to an embodiment in which a slow deployment flapper device for a vehicle lifting apparatus according to the present invention is provided. It is an enlarged side view of the principal part of the slow deployment flapper apparatus of the raising / lowering apparatus for vehicles which concerns on this invention. Similarly, it is a top view of the expansion one side part of the principal part. Similarly, it is a cross-sectional plan view of the main part.

  In a platform in which a base end is supported by a support shaft on a power elevating unit mounted on a vehicle, and a flapper is provided at least at the front end, the front end flapper has a bearing hole at the base at one or both ends of the left and right. Opened flapper side plates are provided, and platform hinges are erected on one or both ends of the left and right ends of the platform, and bolts that pivotally support the base portions of the flapper side plates are screwed onto the platform hinges. A screw hole is formed, and the head protrudes outward from the outer surface of the platform hinge into the screw hole of the platform hinge, and a bolt is screwed into the screw portion protruding inward from the inner surface of the platform hinge. Screw the nut and tighten the nut to the inner surface of the platform hinge to The collar is fitted to the bolt by fitting the inner diameter surface between the head of the bolt and the platform hinge, and the bearing hole at the base of the flapper side plate is fitted to the outer circumferential surface of the collar. A disc spring between the side surface of the base of the flapper side plate and the side of the platform hinge, and a flat washer between the side surface of the base of the flapper side plate and the head of the bolt. The inner diameter hole of the disc spring is loosely fitted to the outer peripheral surface of the collar, one end surface of the collar is connected to the side surface of the platform hinge, and one surface of the flat washer is tightened to the head of the bolt The other side of the collar is connected to the other end surface of the collar, and the base of the flapper side plate has a required radius around the bearing hole. A standing abutting portion having a standing abutting surface on an outer peripheral edge and a lying abutting mating portion having a lying abutting surface are formed at a required angular distance, and on the proximal side of the platform hinge from the platform hinge, A support shaft that is spaced in parallel with the axis of the bolt and whose left and right ends protrude from the left and right side surfaces of the platform is rotatably supported. The portion of the support shaft that protrudes from the left and right side surfaces of the platform has a tip end on the front side. An abutment claw that abuts the standing abutment surface and the overturning abutment surface of the side plate is formed, and an operation abutment rod that is formed on the lever portion is fixedly disposed on the support shaft. Is provided with an urging spring that is engaged or fixed and the other end is engaged or fixed to the platform, and a support plate provided in a mountain shape in which a fixed position support portion and an operation rotation stop portion are bent back and forth is provided in the operation abutment rod. Facing the front The support shaft, which is arranged on the platform and urged to one side by the operation butt rod, can freely rotate until it collides with the operation rotation stop on the other side, and the operation butt rod integral with the spindle is rotated by the urging force. A slow-expanding flapper device for a vehicle lifting device, which is provided so as to collide with a fixed position support and stop and support at a fixed position.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a slowly deploying flapper device for a vehicle lifting apparatus according to the present invention will be described with reference to the embodiments shown in the drawings. In the apparatus 2, the power raising / lowering unit 3 mounted on the vehicle has a base 5 provided on the floor surface 4 a of the vehicle 4, and an upper link 6 and a lower link 7 facing each other are provided on the left and right. One end portion of the lower link 7 is connected to the left and right side portions of the base portion 5 and the other opposite end portion is connected to the left and right side portions of the upper portion of the gate frame 8 so as to be pivotally supported. Between the link 6 and the lower link 7, a power hydraulic cylinder 9 that expands and contracts between the diagonals of the upper link 6 and the lower link 7 is a corresponding support shaft on the left and right side portions of the base portion 4 and the upper portion of the gate frame 8. Correspondence of left and right side of Deployed by passing a difference between the shaft, the base end portion 10a of the lower platform 10 to the left and right side portions of the gate frame 8 is what 支架 mechanism for 支架 undulating freely pivotally supports are constructed in place.

  A tip end flapper 11 is provided on at least a tip end portion 10b of the platform 10 so as to be supported in a undulating manner.

  The front end flapper 11 is provided with flapper side plates 12 at the left and right ends, and bearing holes 13 are opened in the base portions 12a of the flapper side plates 12, respectively.

  Platform hinges 14 are erected on the left and right ends of the tip 10b of the platform 10, and screw holes 16 are formed in the platform hinges 14 for screwing bolts 15 that pivotally support the base 12a of the flapper side plate 12. The

  The head 15a protrudes outward from the outer surface 14b of the platform hinge 14 into the screw hole 16 of the platform hinge 14, and the bolt 15 is screwed into the screw hole 15b protruding inward from the inner surface 15a of the platform hinge 14. A nut 17 is screwed onto the inner surface 14a of the platform hinge 14, and the bolt 15 is fixed to the platform hinge 14.

  The collar 18 is fitted by fitting the inner diameter surface 18 a to the screw portion 15 b between the head portion 15 a of the bolt 15 and the platform hinge 14.

  The base portion 12 a of the flapper side plate 12 is provided with a bearing hole 13, and the bearing hole 13 is fitted to the outer peripheral surface 18 b of the collar 18 to be rotatably supported.

  A disc spring 19 is disposed between the base inner side surface 12 a 1 of the base portion 12 a of the flapper side plate 12 and the outer side surface 14 b of the platform hinge 14.

  A flat washer 20 is provided between the base outer surface 12 a 2 of the base 12 a of the flapper side plate 12 and the head 15 a of the bolt 15.

  The inner diameter hole 19 a of the disc spring 19 is loosely fitted to the outer peripheral surface 18 b of the collar 18, and the inner end surface 18 c of the collar 18 is connected to the outer surface 14 b of the platform hinge 14.

  One surface of the flat washer 20 is arranged so as to be connected to the fastening surface 15 a 1 of the head portion 15 a of the bolt 15, and the other opposite surface is connected to the outer end surface 18 d of the collar 18.

  The base portion 12a of the flapper side plate 12 includes a stand-up abutment portion 21 having a stand-up abutment surface 21a on the outer periphery of a required radius centered on the bearing hole 13 and a fall-down abutment portion having a fall-down abutment surface 22a. 22 are formed at a required angular separation.

  A support shaft 23 that is spaced apart from the platform hinge 14 of the platform 10 in parallel to the axis of the bolt 15 and that protrudes from the left and right side surfaces of the platform 10 is rotatably supported and supported.

  A portion of the support shaft 23 that protrudes from the left and right side surfaces of the platform 10 is formed with an abutment claw 24 whose front end abuts against the abutment abutment surface 21a of the base portion 12 of the flapper side plate 12 and the abutment abutment surface 22a. An operation abutment rod 26 whose proximal end is formed on the lever portion 25 is fixed and deployed.

  The support shaft 23 is provided with an urging spring 27 having one end engaged or fixed and the other end engaged with the platform 10 so that the fixed position support portion 28a and the operation rotation stop portion 28b are bent in the front and rear directions. The provided support plate 28 is disposed integrally with the platform 10 so as to face the operation abutting rod 26, and the support shaft 23 biased to one side by the operation abutting rod 26 is operated until it collides with the operation rotation stop portion 28b. In addition to being freely rotatable, an operation abutment rod 26 integral with the support shaft 23 is rotated by an urging force so as to collide with the fixed position support portion 28a and stop and support at a fixed position.

  Rubber legs 29 are provided on the back surface from the left and right ends of the tip flapper 11. This absorbs an impact when the front end flapper 11 maintains the upright state and opens and turns down, reducing the impact sound.

  Protective buffer seats 30 are provided on the back surface from the left and right ends of the front end portion 9b of the platform 10. This is to protect the lower surface of the platform 10 and to absorb the collision vibration when it comes down to the road surface 31.

  In the collar 18 of the slow deployment flapper device 1 of the vehicle lifting and lowering apparatus according to the embodiment of the present invention, the inner end surface 18c as one end surface is connected to the outer surface 14b of the platform hinge 14, and the outer end surface 18d as the other end surface. Are connected to the flat washer 20, and the bolt 15 is tightened only on the collar 18, and the base 12a of the flapper side plate 12 fitted to the collar 18 and the disc spring 19 are not pinched beyond the length of the collar 18. It is provided as follows. Therefore, the flapper side plate 12 receives a repulsive force due to the compression of the disc spring 19 at the base 12a, and is given rotational resistance due to friction.

  As shown in FIG. 2, when the platform 10 is lowered to the road surface 31 and the tip flapper 11 is in the standing state, the lever portion 25 of the operation abutment rod 26 is put up and pulled up to a temporary line state. Since the claw 24 rotates about the support shaft 23 and can rotate until the lower surface of the abutting claw 24 collides with the operation rotation stop portion 28b, the abutting is released from the abutting abutting surface 21a of the tip end flapper 11, The tip end flapper 11 loses its support and rotates around the bolt 15 by the rotational force due to its weight, but the rotation is controlled by the repulsive force of the disc spring 19 and becomes slow. The speed increases as in the case of loosely-supported shafts, and the impact sound is reduced without generating a large impact sound, and the road surface or the like in the state shown by the temporary line is laid down. When the hand is released from the lever portion 25 of the operation butting rod 26, it is returned by the action of the urging spring 27, and the portion on the base end side from the support shaft 23 of the operation butting rod 26 collides with the fixed position supporting portion 28a. Supported in position. Then, as shown by a solid line in FIG. 2 again, when the tip flapper 11 is placed and lifted, the abutment claw 24 comes into contact with the abutment abutment surface 21a of the abutment abutment portion 21, and the operation abutment rod 26 is supported. The shaft 23 passes through the position indicated by the provisional line around the shaft 23, and again abuts the abutment claw 24 against the abutting abutment surface 21 a to hold the tip end flapper 11 in an upright state.

  When the platform 10 is retracted, when the front end flapper 11 in the standing state shown in FIG. 2 is laid down on the base end side with the bolt 15 as the center, the prone butt portion 22 passes through the butt claw 24 to the outside of the rotating passage. The tip-side flapper 11 can be stored in a lying manner on the upper surface of the platform 10 by abutting the abutment mating surface 22 a with the abutment claw 24.

  The slow deployment flapper device 1 of the vehicle lifting and lowering apparatus according to the embodiment of the present invention may be provided so as to be provided only on the left and right sides or one side of the tip portion of the platform 10 based on the weight of the tip portion flapper.

  The slow-expanding flapper device 1 for a vehicle lifting device according to an embodiment of the present invention is simple, robust, and low-cost, and can be deployed slowly and provides a robust, low-cost vehicle lifting device. It can be done.

DESCRIPTION OF SYMBOLS 1 Slow deployment flapper apparatus of vehicle raising / lowering device 2 Vehicle raising / lowering apparatus 3 Power raising / lowering part 4 Vehicle 4a Floor surface 5 Base part 6 Upper link 7 Lower link 8 Gate frame 9 Power hydraulic cylinder 10 Platform 10a Base end part 10b Tip part 11 Tip part flapper 12 Flapper side plate 12a Base part 12a1 Base part inner side face 12a2 Base part outer side face 13 Bearing hole 14 Platform hinge 14a Inner side face 14b Outer side face 15 Bolt 15a Head part 15a1 Fastening face 15b Screw part 16 Screw hole 17 Nut 18 Collar 18a Inner surface 18b Outer surface 18c Inner end surface 18d Outer end surface 19 Belleville spring 19a Inner diameter hole 20 Flat washer 20a Inner diameter hole 21 Standing abutment 21a Standing abutment surface 22 Falling abutment 22a Falling abutment abutment 23 Support shaft 24 butt claws 2 Biasing the lever unit 26 operating butt rod 27 spring 28 bearing plate 28a fixed position branch 28b operating rotation stopper 29 rubber legs 30 protective buffer seat 31 road surface

Claims (8)

  In a platform in which a base end is supported by a support shaft on a power elevating unit mounted on a vehicle, and a flapper is provided at least at the front end thereof, the front end flapper has a bearing hole at the base at one or both ends of the left and right. An open flapper side plate is provided, and a platform hinge is erected at one or both ends of the left and right ends of the platform tip, and a bolt that pivotally supports the base of the flapper side plate is screwed into the platform hinge. A screw hole is opened, and the head protrudes outward from the outer surface of the platform hinge into the screw hole of the platform hinge, and a bolt is screwed into the screw hole protruding inward from the inner surface of the platform hinge. And tighten the nut to the inside surface of the platform hinge to tighten the bolt And a collar is fitted between the head of the bolt and the platform hinge, and a bearing hole in the base of the flapper side plate is rotatably fitted in the collar, and the flapper side A slow deployment flapper device for a vehicle elevating device in which a disc spring is disposed between a side surface of a base portion of a plate and a side surface of a platform hinge.   The slow deployment flapper apparatus of the vehicle lifting / lowering apparatus of Claim 1 by which a flat washer is arrange | positioned between the side surface of the base part of the said flapper side plate, and the head of a volt | bolt.   The slow deployment flapper device for a vehicle lifting / lowering device according to claim 1 or 2, wherein the inner diameter hole of the disc spring is loosely fitted to the outer peripheral surface of the collar, and one end surface of the collar is connected to the side surface of the platform hinge. .   The one surface of the flat washer is arranged so as to be connected to the tightening surface of the head of the bolt, and the other opposite surface is arranged to be connected to the other end surface of the collar. 4. The slow deployment flapper device for a vehicle elevating device according to claim 3.   The base part of the flapper side plate is formed such that a standing abutting portion having a standing abutting surface on an outer peripheral edge of a required radius centering on the bearing hole and a lying abutting portion having a prone abutting surface are separated by a required angle. The slow deployment flapper device of the vehicle lifting / lowering device according to claim 1, 2, 3, or 4.   2. The support shaft according to claim 1, wherein a pivot shaft is provided on a proximal end side of the platform hinge of the platform so as to be spaced apart in parallel with the axis of the bolt and whose left and right ends protrude from the left and right side surfaces of the platform. The slow deployment flapper device of the vehicle lifting device according to claim 2, claim 3, claim 4 or claim 5.   In the portion of the support shaft that protrudes from the left and right side surfaces of the support shaft, there are formed abutment claws whose front end abuts the abutment abutment surface and the abutment abutment surface of the flapper side plate, and the base end side is formed in the lever portion 8. The slow deployment flapper device for a vehicle lifting / lowering device according to claim 1, wherein the operation butting rod is fixed and deployed.   The support shaft is provided with an urging spring having one end engaged or fixed and the other end engaged or fixed to the platform, and a support provided in a mountain shape in which the fixed position support portion and the operation rotation stop portion are bent back and forth. A plate is disposed on the platform so as to face the operation abutment rod, and the operation shaft can be freely rotated until it collides with the operation rotation stop portion on the other side. The operation abutment rod is rotated by an urging force so as to collide with a fixed position support and stop and support at a fixed position. Claims 1, 2, 3, 4, and 5 A slow deployment flapper device for a vehicle lifting apparatus according to claim 6 or 7.

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