JP2018061631A - Movable locking device for fastening load - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a movable locking device for fastening a load, the device that improves operability enabling operation with one hand easily, quickly and reliably, and also improves clarity of a lock display function in the locking and the reliable robustness of the lock function.SOLUTION: A movable locking device for fastening a load is provided from a hook bracket assembly and a hook lever assembly. A left-side bearing hole and a right-side bearing hole are provided in the hook bracket assembly. A locking groove is provided in an upper surface of the hook bracket assembly. The hook lever assembly is provided from a rotary shaft and a member adhering to the rotary shaft. The member is provided with a hook for engaging a load, an operation rotating lever, and a lock confirmation pin being fitted in the locking groove of the hook bracket assembly and capable of holding a locked state and seeing the locked state. The hook bracket assembly is connected with one end of a compression spring fitted in the rotary shaft. The other end of the compression spring is connected to the spring stop on the rotary shaft. The member is biased and moved in the direction of extension of the compression spring along with the rotary shaft, and thereby the hook lever assembly and the hook bracket assembly are locked.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a portable firefighting pump for vehicles, emergency equipment, and other movable locking devices for fixing a load that fixes a general load to a loading table.

  In Patent Document 1, a rail frame that regulates the posture of the lift truck and moves it back and forth is mounted on the loading platform of the automobile, and an upper link and a lower link that pivotally supports the gate frame on the lift truck, A hydraulic cylinder power source that raises and lowers the lower link is deployed, and a load receiving platform consisting of a loading platform frame and a receiving tray plate is deployed on the gate frame, with a fixed latch and lock that engages the portable fire pump on this loading platform. Rotating hook metal fittings are installed, a lock shaft with a handle that locks the lift carriage in the retracted position in front of the rail frame is placed on the load receiving table, and a lock bearing hole into which the lock shaft with the handle is inserted is arranged on the rail frame. The rail frame is equipped with an automatic lock catcher that automatically engages with the hanging shaft of the carriage and locks it in the back and forth loading / unloading position. Lifting loading drop-off device is disclosed type fire pump.

JP 2007-68735 A

  The conventional product has a structure that releases the engagement by pulling the knob with one hand and rotating the lever with the other hand.

  The present invention is intended to improve operability that can be operated simply, quickly and reliably with one hand, to clarify the lock display function when locked, and to improve the reliability and robustness of the lock function. is there.

  A hook bracket assembly and a hook lever assembly are provided. The hook bracket assembly is provided with a left bearing hole and a right bearing hole. A lock groove is provided on an upper surface of the hook bracket assembly. The assembly is provided with a rotating shaft and a member fixed to the rotating shaft, and the member is fitted to the load engaging hook, the operation rotating lever, and the locking groove of the hook bracket assembly to keep the locked state. And a lock confirmation pin for visually checking the locked state, and the rotation shaft of the hook lever assembly is rotatably supported by the left bearing hole and the right bearing hole, and the tip thereof is opposite to the hook bracket assembly. Projected outward, the member corresponds to the hook bracket assembly, and the hook bracket assembly is fitted to the rotating shaft One end of the compressed spring is connected, the other end of the compression spring is connected to a spring stop on the rotating shaft, and the member is urged and moved together with the rotating shaft in the expansion direction of the compressing spring, thereby moving the hook lever assembly and the hook bracket assembly. It is in the movable lock device for fixing the load formed by locking the load.

  The hook lever assembly is provided with a rotary shaft and a member fixed to the rotary shaft, and the member is spaced around the rotary shaft and protrudes in the outer peripheral direction with a required radius to correspond to the load. A lock confirmation pin that can be fitted into the lock groove of the hook, the operation rotation lever, and the hook bracket assembly to hold the lock state and visually check the lock state is fixedly provided, and the rotation shaft of the hook lever assembly is provided. One end of the compression spring fitted to the shaft is connected, the other end of the compression spring is connected to a spring stop on the rotating shaft, and the member is urged so as to slide with the rotating shaft in the expansion direction of the compression spring. A movable lock for fixing the load, in which the pin is fitted in the locking groove of the hook bracket assembly and the locked state of the hook lever assembly and the hook bracket assembly is maintained. Even those may as a device.

  The hook bracket assembly may be provided with a fixing mounting plate having a fixing mounting hole for mounting at a required location.

  The rotating shaft of the hook lever assembly may be provided with a spring stopping groove portion for attaching a spring stop connected to one end of the compression spring and a stopper groove portion for attaching a stopper of the rotating shaft.

  A cover for covering the edge may be attached to the rotation lever of the hook lever assembly.

  The point head of the lock confirmation pin may be formed in a conical point shape.

  Since the hook bracket assembly is provided with a fixing mounting plate having a fixing mounting hole to be mounted at a required location, it can be easily mounted on a loading table or the like with a mounting tool such as a bolt.

  Since the lock confirmation pin is provided on the hook lever assembly, the state that the lock confirmation pin of the hook lever assembly is fitted in the lock groove provided on the upper surface of the hook bracket assembly can be clearly seen at a glance. The locked state of the hook for hanging the load can be visually confirmed, and safety can be secured.

  The members that make up the lever for operation rotation and the hook for hanging the load and the rotary shaft are welded together after they are fitted together, and the structure is robust because the load and the hook for hanging the load are fixed together Sufficient strength can be ensured by one place of engagement.

  The lock confirmation pin for the hook bracket assembly always rotates around the axis of the rotation axis while contacting the hook bracket assembly by the expansion action of the compression spring. A stop resistance with an appropriate expansion pressure is obtained, and the rotation operation can be performed by an operating rotational force of a lever that overcomes the stop resistance.

  The lock confirmation pin rotates at the same radius as the position of the lock groove. When the lock confirmation pin corresponds to the lock groove, the lock confirmation pin is slid in the urging direction to fit the lock confirmation pin into the lock groove. Since the load hooking hook receives a rotational force around the axis of the rotary shaft in relation to the load, the lock confirmation pin is rotated around the axis relative to the slide direction of the rotary axis. The lock groove is pushed in the rotational direction in response to the rotational force, so that the lock is securely held.

  For unlocking, the lock lever can be pulled out of the locking groove by simply pulling the operating lever with one hand while compressing the compression spring in the sliding direction of the rotating shaft. Rotate and rotate the load hook in the hook release direction to release the load. Since the pointed head of the lock confirmation pin contacts the hook bracket assembly by the expansion action of the compression spring, the operation rotation lever and the load hook can be maintained in the stopped position.

  When the lock confirmation pin has a conical pointed tip, the contact surface of the pointed head with the hook bracket assembly is a point contact with a small area, so the required rotational resistance can be obtained. It can be safely stopped, and can be smoothly engaged and disengaged when it corresponds to the locking groove.

  Therefore, it is possible to provide a fixed movable lock device suitable for a load having a high frequency of emergency transportation such as a portable fire pump.

It is a side view by the side of the lock lever of the movable lock device for fixation of the load which fixes the portable loadable fire pump for vehicles of this invention, emergency equipment, and other general loads to a loading stand. Similarly, it is a front view of the lock lever engaging surface side of the movable lock device for fixation. Similarly, it is a rear view on the lock lever operation surface side of the movable lock device for fixation. Similarly, it is a top view of the movable lock device for fixation. Similarly, it is a bottom view of the movable lock device for fixation. Similarly, it is a side view of the decomposition | disassembly lower body of the hook bracket assembly single-piece | unit which comprises the movable lock apparatus for fixation. Similarly, it is a top view of a decomposition | disassembly lower half part. It is a side view of a decomposition | disassembly upper surface body. Similarly, it is a top view of a decomposition | disassembly upper surface body. Similarly, it is a top view of the hook lever assembly simple substance which comprises the movable lock apparatus for fixation. It is the whole side view of the state where the loading platform of the raising / lowering device which provided the movable lock device of the present invention was pulled in in vehicles. Similarly, it is a side view of the state where the loading platform of the lifting device provided with the movable lock device for fixing the load of the present invention is extended out of the vehicle. Similarly, it is a side view showing a loading platform and a movable lock device of the lifting device. Similarly, it is a top view which shows the loading platform and movable lock apparatus of a raising / lowering apparatus. Similarly, in the loading platform of the lifting device, it is a plan view of another embodiment in which the position of the movable lock device is changed.

  A hook bracket assembly and a hook lever assembly are provided. The hook bracket assembly is provided with a left side portion of the hook bracket having a left side bearing hole and a right side portion of the hook bracket having a right side bearing hole. A locking groove is provided on the upper surface, and the hook lever assembly is provided from a rotating shaft and a member that is integrally fixed to the rotating shaft. Lock confirmation pins that hold the lock state and can visually check the lock state by fitting into the hook for hooking the load, the lever for operation rotation, and the lock groove of the hook bracket assembly that protrude in the outer peripheral direction with a radius. It is fixedly provided, and the rotation shaft of the hook lever assembly is rotatably supported in the left bearing hole and the right bearing hole, The front end protrudes outward from the right side of the hook bracket on the opposite side or the left side of the hook bracket, and an external stopper is provided. The member corresponds to the left side of the hook bracket or the right side of the hook bracket. One end of a compression spring fitted to the rotating shaft is connected to the left side of the hook bracket or the right side of the hook bracket of the bracket assembly, and the other end of the compression spring is connected to a spring stop on the rotating shaft, so that the member is connected to the rotating shaft. At the same time, it is urged to slide in the expansion direction of the compression spring, the lock confirmation pin is fitted into the lock groove of the hook bracket assembly, and the locked state is maintained. A fixing mounting plate having a fixing mounting hole for mounting at a location is provided, and the rotating shaft of the hook lever assembly is a compression bar. A spring stop groove portion for attaching a spring stop connected to one end of the shaft, and a release stop groove portion for attaching a locking stop of the rotating shaft. The rotation lever of the hook lever assembly is provided with a cover for covering the edge. A movable lock device for fixing the load.

  Hereinafter, the movable lock device for fixing a load that fixes a portable fire pump for vehicles, emergency equipment, and other general loads to the loading table according to the present invention will be described with reference to the movable lock device 1 for fixing a load of the embodiment shown in the drawings. explain.

  The movable lock device 1 for fixing a load is provided on a loading table 3 on which a portable fire pump 2 is loaded as an example of an emergency device.

  Although the loading platform 3 is that of the vehicle lifting device 4 shown in FIGS. 10 to 12, it may be a loading platform of a vehicle although not shown.

  The movable lock device 1 for fixing the load is composed of a hook bracket assembly 5 and a hook lever assembly 6.

  The hook bracket assembly 5 includes a hook bracket left side 5a and a hook bracket right side 5b, and a left bearing hole 9a and a right bearing hole 9b are formed in the hook bracket left side 5a and the hook bracket right side 5b. Prepare.

  A locking groove 10 is provided on the upper surface 5 d of the hook bracket assembly 5.

  The front edge of the hook bracket assembly 5 is formed on a fixing mounting plate 5c having fixing mounting holes 11a and 11b.

  The hook lever assembly 6 is provided from a member 7 and a rotary shaft 8, and a load hook 12, a rotation operation lever 13, and the hook bracket assembly 5 to be hooked to the portable fire pump 2 are attached to the member 7. A lock confirmation pin 14 is provided which can be fitted into the lock groove 10 and can hold the locked state and visually check the locked state.

  A cover 15 for protecting the edge is attached to the operation rotation lever 13.

  The rotary shaft 8 has an E-type retaining ring groove 16a for attaching an E-type retaining ring 16 as a spring stopper and a C-type retaining ring groove 17b for attaching a C-type retaining ring 17 as a stopper.

  As the hook lever assembly 6, the rotating shaft 8 is inserted into the left bearing hole 9a of the hook bracket left side 5a and the right bearing hole 9b of the hook bracket right side 5b of the hook bracket assembly 5, and the left bearing hole 9a and the right bearing hole are inserted. A compression spring 18 is arranged between the springs 9b, and a spring-stopped E-type stop ring 16 connecting one end of the compression spring 18 and a C-type stop ring 17 as a hook stopper assembly 6 are provided on the rotary shaft 8. doing.

  The load hook operation of the hook lever assembly 6 is performed by pushing the operation rotation lever 13 sideways with one hand from the locked state in which the lock confirmation pin 14 is in the lock groove 10 and locking. The hook lever assembly 6 can be rotated by releasing the fitting of the groove 10, and by rotating the hand pushed sideways as it is, the lock confirmation pin 14 is put on the outer surface of the left side portion 5a of the hook bracket, and the hook The lever assembly 6 can freely rotate. In addition, when the expansion pressure of the compression spring 18 causes the cusp 14a of the lock confirmation pin 14 to come into contact with the outer surface of the left side 5a of the hook bracket corresponding to the corresponding surface and a required rotational resistance is generated to release the operating force, the hook The lever assembly 6 is held at the stop position in the unlocked state.

  To return to the locked state again, the hook lever assembly 6 is rotated in a direction opposite to the releasing direction by applying a rotational force exceeding the rotational resistance, and the lock confirmation pin 14 and the locking groove 10 are compressed when they are aligned. The rotary shaft 8 is slid by the return force of the spring 18 and the lock confirmation pin 14 is fitted into the lock groove 10 to be locked.

  Since the lock confirmation pin 14 is visible in the locked state, the operation of the hook lever assembly 6 can be visualized.

  If the portable fire pump 2 is run with the hook lever assembly 6 not locked, the portable fire pump 2 may fall depending on the road surface condition. For this reason, the lock function is made visible so that the operator can be assured of safety.

  As shown in FIGS. 6 to 9, the hook bracket assembly 5 of the movable locking device 1 for fixing the load is, as an example, a lower body 51 and an upper surface formed by leather cutting a steel plate and bending it by a bender. The body 52 is provided by welding.

  A left bearing hole 9a is formed in the hook bracket left part 5a of the lower body 51, and a right bearing hole 9b is opened in the hook bracket right part 5b before bending by the bender. Further, a U-shaped groove 21a2 is opened from the upper edge of the hook bracket left side portion 5a of the lower body 51 to the protruding portion 21a1.

  In the upper surface body 52, at the connecting edge with the hook bracket left side portion 5a of the lower body 51, the U-shaped opening 21b1 facing the inside of the protruding portion 21a1 of the hook bracket left side portion 5a and the cusp of the lock confirmation pin 14 are provided. A cusp opening 21b2 corresponding to 14a is opened.

  In the movable lock device 1 for fixing a load of the embodiment, the member 7 of the hook lever assembly 6 corresponds to the hook bracket left side 5a with respect to the hook bracket assembly 5, and the rotary shaft 8 is connected to the left side of the hook bracket. 5a is inserted into the hook bracket right side portion 5b and the tip protrudes outward from the hook bracket right side portion 5b. However, the rotary shaft 8 may be inserted into the hook bracket left side portion 5a from the hook bracket right side portion 5b. Is.

  As shown in FIGS. 12 to 13, the movable locking device 1 for fixing the load is generally provided at the front edge 3a of the loading table 3, and the fixed hanging brackets 20a and 20b are loaded correspondingly. It is arranged at the rear edge 3b of the base 3, and it holds the rotation lever 13 of the hook lever assembly 6 and rotates the load hook 12 upward to release the lock, resulting in a load. The portable fire-fighting pump 2 is placed on the loading table 3 with its rear lower end 2b engaged with the fixed brackets 20a and 20b, the hook lever assembly 6 is rotated, and the load-engaging hook 12 is carried by the portable fire-fighting pump. 2 is engaged with the front lower end 2a. And the left standing edge 3c1 is provided in the left side edge 3c of the loading base 3, and the right standing edge 3d1 is provided in the right side edge 3d, respectively.

  As shown in FIG. 14, the movable lock device 1 for fixing the load on the loading table 3 is provided on the right edge 3 d of the loading table 3, and the fixing metal fittings 20 a and 20 b are provided on the left edge 3 c of the loading table 3. It may be done. In this embodiment, the front rising edge 3a1 is provided at the front end edge 3a of the loading table 3, and the rear rising edge 3b1 is provided at the rear end edge 3b of the loading table 3, respectively. .

  Since the movable locking device for fixing of the present invention is configured as described above, it has excellent usability in terms of single-unit operability, mountability, and expandability of applications.

DESCRIPTION OF SYMBOLS 1 Movable locking device for fixing load 2 Portable fire pump 2a Front lower end 2b Rear lower end 3 Loading platform 3a Front end edge 3a1 Front standing edge 3b Rear end edge 3b1 Rear standing edge 3c Left side edge 3c1 Left standing edge 3d Right side edge 3d1 Right rising edge 4 Vehicle lifting device 5 Hook bracket assembly 5a Hook bracket left side 5b Hook bracket right side 5c Fixing mounting plate 5d Upper surface 6 Hook lever assembly 7 Member 8 Rotating shaft 9a Left bearing hole 9b Right bearing hole 10 Lock Groove 11a Fixing hole 11b Fixing hole 12 Load hook 13 Locking lever 14 Lock confirmation pin 14a Pointed head 15 Cover 16 E-type retaining ring 16a E-type retaining ring groove 17 C-type retaining ring 17a C-type retaining ring groove 18 Compression spring 19 Vehicle 20a Fixed bracket 20b Fixed bracket 21a1 Projection Part 21a2 U-shaped groove 21b1 U-shaped opening 21b2 pointed head opening 51 lower body 52 upper body

Claims (6)

  A hook bracket assembly and a hook lever assembly are provided. The hook bracket assembly is provided with a left bearing hole and a right bearing hole. A lock groove is provided on an upper surface of the hook bracket assembly. The assembly is provided with a rotating shaft and a member fixed to the rotating shaft, and the member is fitted to the load engaging hook, the operation rotating lever, and the locking groove of the hook bracket assembly to keep the locked state. And a lock confirmation pin for visually checking the locked state, and the rotation shaft of the hook lever assembly is rotatably supported by the left bearing hole and the right bearing hole, and the tip thereof is opposite to the hook bracket assembly. Projected outward, the member corresponds to the hook bracket assembly, and the hook bracket assembly is fitted to the rotating shaft One end of the compressed spring is connected, the other end of the compression spring is connected to a spring stop on the rotating shaft, and the member is urged and moved together with the rotating shaft in the expansion direction of the compressing spring, thereby moving the hook lever assembly and the hook bracket assembly. A movable lock device for fixing the load.   The hook lever assembly is provided with a rotary shaft and a member fixed to the rotary shaft, and the member is spaced around the rotary shaft and protrudes in the outer peripheral direction with a required radius to correspond to the load. A lock confirmation pin that can be fitted into the lock groove of the hook, the operation rotation lever, and the hook bracket assembly to hold the lock state and visually check the lock state is fixedly provided, and the rotation shaft of the hook lever assembly is provided. One end of the compression spring fitted to the shaft is connected, the other end of the compression spring is connected to a spring stop on the rotating shaft, and the member is urged so as to slide with the rotating shaft in the expansion direction of the compression spring. 2. The load fixing according to claim 1, wherein a pin is fitted into a locking groove of the hook bracket assembly so that the locked state of the hook lever assembly and the hook bracket assembly is maintained. A movable locking device.   The movable lock device for fixing a load according to claim 1 or 2, wherein the hook bracket assembly is provided with a fixing mounting plate having a fixing mounting hole for mounting at a required location.   The rotary shaft of the hook lever assembly is provided with a spring stop groove portion for attaching a spring stop connected to one end of the compression spring, and a release stop groove portion for attaching a stop of the rotation shaft. Item 4. A movable lock device for fixing a load according to item 3.   5. The movable locking device for fixing a load according to claim 1, wherein a cover for covering an edge of the lever for rotating the hook lever assembly is attached.   The movable lock device for fixing a load according to claim 1, 2, 3, 4, or 5, wherein the peak of the lock confirmation pin has a conical peak shape.

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