Slide and lock device for a portable fire pump for vehicles and other objects to be transported

Abstract

To provide a slide mechanism which performs stable travel while being mounted with a portable fire pump and other transportation objects, drawing movement to a drawn position on the outer side of a vehicle of a loading base part and push-out movement to a storage position on the inner side of the vehicle on the opposite side, and a slide lock device of the vehicle portable fire pump and other transportation objects by a lock device that automatically locks the slide mechanism to a stop position by making the slide mechanism release locking, and smoothly and surely operate with an easy manual operation.SOLUTION: A slide lock device comprises: a load device which loads a portable fire pump and other transportation objects into a vehicle; a slide mechanism which causes the load device to perform drawing movement to a drawn position on the outer side of the vehicle from a storage position on the inner side of the vehicle and storage movement to a storage position on the inner side of the vehicle on the opposite side; and a lock device which locks the slide mechanism to the storage position on the inner side of the vehicle and to the drawn position on the outer side of the vehicle.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a slide-lock device including a loading device for loading a portable fire pump and other cargos on a vehicle, a slide mechanism for moving the loading device from a storage position inside the vehicle to a pulling-out position outside the vehicle and for moving it in the opposite direction to the storage position inside the vehicle.

Background Art

[0002] Patent Document 1 provides an in-vehicle unit for a fire pump that is safe, can quickly lower the fire pump, can move the lowered fire pump directly on a cart in a narrow alleyway, etc., is excellent in mobility, and is low in price. The in-vehicle unit 1 for a fire pump firmly fixes a cart 3 with two wheels 11 to which a fire pump 2 is fixed to a rear loading section 4a of a fire pump transport vehicle 4. A pair of left and right base guide rails 6 are welded to the rear loading section 4a, and a slide frame 7 is attached inside the base guide rails 6 so as to be slidable in the front-rear direction with respect to the base guide rails 6. On the slide frame 7, a lifting unit centered on a lifting plate 13 and a lifting base for sliding the cart 3 to which the fire pump 2 is fixed in the front-rear direction with respect to the slide frame 7 and further lifting and lowering it in the vertical direction is attached.

[0003] In Patent Document 1, an L-shaped lock bar 14b is integrally welded to a shaft 14a rotatably supported by one of the base guide rails 7 at two locations near both ends. The slide frame 7 is provided with a first lock mechanism biased in a direction in which the lock bar 14b fits into a recess of a receiving member 14c having a recess for fitting the lock bar 14b. One end of a shaft 15a rotatably supported by the other base guide rail 7 is provided with a handle 15 bent substantially at a right angle. A linear lock bar 15b is integrally welded to the shaft 15a at two locations near both ends. A receiving member 15c having a recess for fitting the lock bar 15b is fixed to the lifting unit 6. Further, the shaft 15a is provided with a second lock mechanism biased by a spring (not shown) so as to rotate in a direction in which the lock bar 15b fits into the recess of the receiving member 15c.

[0004] Patent Document 2 aims to provide a loading and unloading device for a portable fire pump that can be locked and unlocked with a light operation and can easily detach and mount the portable fire pump from the loading platform of a lift truck. Its configuration is as follows: a rail frame that restricts the posture of the lift truck and moves it back and forth is loaded on the loading platform of an automobile, and on the lift truck, an upper link and a lower link that pivotally support a gate frame, and a hydraulic cylinder power source that raises and lowers the upper link and the lower link are provided. On the gate frame, a loading platform composed of a loading platform frame and a loading tray plate is provided. On this loading platform, a fixed latch and a rotatable hook fitting with a lock that engage with the portable fire pump are provided. A locking shaft with a handle for locking the lift truck at the storage position in front of the rail frame is provided on the loading platform, and a lock bearing hole for inserting the locking shaft with a handle is provided on the rail frame respectively. An automatic lock catcher that automatically engages with the hanging shaft of the lift truck and locks it at the rear lifting and loading / unloading position is provided on the rail frame.

[0005] Patent Document 3 aims to provide a loading and unloading device for a portable fire pump that simplifies operations, automates the pulling-out and storing operations, and can be accommodated even with a short loading platform length (loading chamber length). A multi-stage slide mechanism composed of an upper slide part and a lower slide part is provided on a base frame. The portable fire pump is detachably loaded on the lower slide part, and a link that receives the power of a hydraulic cylinder is connected to the lower slide part. The lower slide part and the upper slide part are supported by rails and rollers, and the expansion and contraction of the hydraulic cylinder are transmitted to the multi-stage slide mechanism part to cause lifting and lowering. Stoppers are provided at the rail ends of the lower slide part and the upper slide part, and when the rollers hit the stoppers, the slide operation is restricted. This is a loading and unloading device for a portable fire pump.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Patent Document 2

[0007] In types other than the above-mentioned conventional inventions, an operation of locking at the pulling-out position occurs separately from the sliding operation, and since there are more manual operations compared to the above type, the lowering operation of the portable fire pump is delayed.

[0008] In fire extinguishing activities, it is important to start water discharge as soon as possible, so it was developed for the purpose of starting water discharge with the minimum operation.

[0009] The present invention is a slide / lock device suitable for a portable fire pump that is used and utilized by trained personnel as a carrier for a portable fire pump and other transported objects. It is designed to enable smoother sliding than types that do not employ an automatic lock structure and to be able to lower it outside the vehicle more quickly.

[0010] Not limited to portable fire pumps, it is possible to easily and surely pull out and move heavy objects loaded inside the vehicle to the outside of the vehicle and store them inside the vehicle, and to lock the storage position inside the vehicle and the pulling-out position outside the vehicle with a lock device provided at one side position at the rear of the vehicle for the transported object slider. The purpose is to provide a slide / lock device. [Means for Solving the Problems]

[0011] A slide-lock device includes a loading device for loading a portable fire pump and other cargo on a vehicle, a slide mechanism for moving the loading device from a storage position inside the vehicle to a retracted position outside the vehicle and vice versa, and a locking device for locking the slide mechanism at the storage position inside the vehicle and the retracted position outside the vehicle. In the slide-lock device, the locking device is disposed on the base side of the slide mechanism, and a locking pin supported by a bearing hole of a locking bracket of the locking device is disposed corresponding to an engagement surface portion of a storage lock stay disposed corresponding to a rear end portion of a cargo slider provided in the slide mechanism and an engagement surface portion of a retracted lock stay disposed corresponding to a front end portion of the cargo slider. The locking pin is engaged with the engagement surface portion of the storage lock stay and the engagement surface portion of the retracted lock stay. When a locking engagement / detachment protrusion provided on an operation lever portion fixed to a base end portion of the locking pin is inserted into a locking window hole of the locking bracket, the locking operates by contact between the engagement surface portion of each corresponding lock stay and the locking pin. When the locking engagement / detachment protrusion of the locking pin protrudes outward from the locking window hole of the locking bracket, the locking does not operate because the engagement surface portion of each lock stay and the locking pin do not contact each other. This is a slide-lock device for a portable fire pump and other cargo on a vehicle.

[0012] The lock bracket of the locking device is provided with a base-end bearing portion and a tip-end bearing portion in which concentric base-end bearing holes and tip-end bearing portions for pivotally supporting a lock pin are spaced apart in the left-right direction. A lock window hole into which a lock engagement / detachment protrusion of the lock pin is inserted is provided in the base-end bearing portion. The lock engagement / detachment protrusion and the lock window hole change according to the slide position and rotation angle of the lock pin. In the axial direction of the lock pin, a compression spring is coaxially arranged, one end of which is in contact with the inner surface of the base-end bearing portion provided with the lock window hole of the lock bracket, and the other end is biased by a spring force generated by contacting the lock pin by a retaining ring arranged in a groove portion of the lock pin. When the carrier slider is in the storage position inside the vehicle, the lock pin is pulled out by the operation lever portion in the direction of deflecting the compression spring, the operation lever portion is rotated counterclockwise, and the outer surface of the base-end bearing portion provided with the lock window hole of the lock bracket and the tip of the lock engagement / detachment protrusion of the lock pin are in contact with each other, thereby holding the unlocked state. When the carrier slider is moved to the pull-out position outside the vehicle, the round bar operation portion of the pull-out lock stay arranged on the carrier slider hits the operation lever portion of the lock pin, and by moving and pushing it down, the lock pin is rotated clockwise. When the lock engagement / detachment protrusion and the lock window hole are fitted, the lock pin is moved by the biasing force of the compression spring, and it may be configured such that the engagement surface portion of the pull-out stay and the axial surface of the lock pin come into contact with each other. It may also be a slide / lock device for a portable fire pump for a vehicle and other carriers.

[0013] The storage lock stay and the pull-out lock stay provided on the carrier slider may be provided with engagement surface portions with the lock pin and may be provided with inclined guide surface portions that are inclined to guide the lock pin on those engagement surface portions.

Advantages of the Invention

[0014] The base bearing hole and the tip bearing hole of the lock pin that slides the loading platform of the carrier slider constituting the present invention in a direction perpendicular to the lateral movement direction of the sliding movement to the pull-out position outside the vehicle and the sliding movement to the storage position inside the vehicle are provided in the lock bracket. A compression spring is interposed between the lock bracket and the lock pin to bias the lock pin in the locking direction. An operation lever portion is fixed to the base end portion of the lock pin, and a portion protruding with an appropriate radius centered on the fixed portion is provided below the fixed portion with a rotation angle restricting protrusion parallel to the lock pin. A rotation angle restricting window hole is formed in the lock bracket corresponding to the rotation angle restricting protrusion, and is provided so as to engage at all slide positions when the lock pin is locked and unlocked, and the rotation angle of the lock pin can be restricted simply, firmly, and reliably.

[0015] A portion protruding with an appropriate radius centered on the fixed portion is provided above the fixed portion of the operation lever portion with a lock engagement and disengagement protrusion parallel to the lock pin. A lock window hole is provided in the lock bracket corresponding to the lock engagement and disengagement protrusion. When the lock engagement and disengagement protrusion of the operation lever portion coincides with the lock window hole of the lock bracket by the rotation of the lock pin by the operation of the operation lever portion, the lock pin moves in the locking direction by the biasing force of the compression spring, and the lock engagement and disengagement protrusion fits into the lock window hole to lock. Therefore, the lock release slide position of the lock pin can be maintained simply, firmly, and reliably, and smooth movement operation can be ensured.

[0016] In the operation of pulling out the loading platform of the carrier slider of the present invention to the pull-out position outside the vehicle, the round bar operation portion integrated with the pull-out lock stay of the carrier slider is made to collide with the operation lever portion, the operation lever portion is rotated in the moving direction to rotate the lock pin, and the lock engagement and disengagement protrusion integrated with the lock pin is made to correspond to the lock window hole of the lock bracket. The lock pin that has become movable in the tip direction is moved by the spring pressure of the compression spring to the lock position where the tip surface of the lock engagement and disengagement protrusion contacts the outer surface of the lock bracket, and the tip portion of the lock pin is engaged with the engagement surface portion of the pull-out lock stay to be in a locked state. Then, the loading platform can be lowered to the lower position and returned and raised to the pull-out position by using the elevating mechanism.

[0017] When the loading platform outside the vehicle of the device of the present invention returns to the re-ascending position and the transport object slider moves inward of the vehicle to the storage position, the operation lever part is in a collision state with the round bar operation part integrated with the draw lock stay. However, until reaching the tip surface of the round bar operation part, the interval between the outer end surface of the spring collar and the groove part for fitting the retaining ring is extended so that sliding along the outer periphery of the round bar operation part can be performed. Therefore, the lock pin can be pulled out to a position where it can engage with the tip surface of the operating rod, and the operation lever part can be rotated counterclockwise at the draw limit position, hooked on the tip surface of the round bar operation part, and the lock between the lock pin and the engaging surface of the draw lock stay can be released and held in the released state. Therefore, the transport object slider can be moved and stored with both hands using full force.

[0018] At the draw position where it is in a collision state with the round bar operation part integrated with the draw lock stay, unlocking cannot be performed. Therefore, this problem is solved by making the stroke of the lock pin in two stages: the stroke of the lock engagement / disengagement protrusion and the stroke for hooking on the tip part of the round bar operation part integrated with the draw lock stay.

[0019] At the start or during the movement operation, the operator may touch the operation lever part that is in the unlocked state, either consciously or unconsciously, rotate it clockwise, rotate the lock pin and the lock engagement / disengagement protrusion, insert the lock engagement / disengagement protrusion into the lock window hole, and operate the lock pin to the locked position.

[0020] When the operator touches the operation lever part that is in the unlocked state at the start or during the movement operation of the transport object slider, rotates the lock pin and the lock engagement / disengagement protrusion clockwise, inserts the lock engagement / disengagement protrusion into the lock window hole, and operates the lock pin to the locked position, on the engaging surface parts of the storage lock stay and the draw lock stay of the transport object slider, inclined guide surface parts that contact the tip of the lock pin, compress the compression spring, and slide in the base end direction are respectively provided. Therefore, no operational disadvantage occurs in the drawing movement and storage movement of the transport object slider due to the operation of such an operation lever part.

Brief Description of the Drawings

[0021]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

Figure 18

Mode for Carrying Out the Invention

[0022] The slide and lock device 1 of a portable fire pump for a vehicle according to an embodiment of the present invention will be described below. A base 11 is laid on the loading part 2a of the vehicle 2, and two rail members 12 having a U-shaped cross section are arranged in parallel with a required interval, with the opening surface 12a provided on one side thereof facing each other, thereby forming a rail body 13. A carrier slider 16 that slides on the rail body 13 is provided. The carrier slider 16 has moving rollers 32 rotatably attached to support shafts protruding forward, backward, left, and right at the front part thereof. Further, a loading table part 15 that moves up and down by a lifting mechanism 10 is provided on the carrier slider 16. As a power mechanism of the lifting mechanism 10, a manual hydraulic unit 36 is installed. The lateral movement of the carrier slider 16 along the rail body 13 and the lifting operation according to the lifting mechanism 10, and at the storage position 5 inside the vehicle and the pulling-out position 6 outside the vehicle, the sliding of the carrier slider 16 is locked. By operating the lifting mechanism 10, the portable fire pump 3 can be easily lowered and placed by the operator, and a slide and lock device of a portable fire pump for a vehicle that moves up and down to a pulling-out lower position 9 outside the vehicle is configured. And in the slide and lock device 1 of the portable fire pump for a vehicle, a lock pin 18 supported by a base end bearing hole 17a1 and a tip bearing hole 17b1 of a lock bracket 17 arranged on the base 11 at the storage position 5 inside the vehicle and the pulling-out position 6 outside the vehicle is fixed to an engaging surface part 28a of a storage lock stay 28 fixed to the front end part of the carrier slider 16 and an engaging surface part 29a of a pulling-out lock stay 29 fixed to the rear end part of the carrier slider 16 so as to be engageable. When the lock pin 18 hits the engaging surface part 28a of the storage lock stay 28 or the engaging surface part 29a of the pulling-out lock stay 29 when a lock engagement and disengagement protrusion 22 provided on an operation lever part 19 is inserted into a lock window hole 23 of the lock bracket 17, and when the lock engagement and disengagement protrusion 22 of the lock pin 18 protrudes outward from the lock window hole 23 of the lock bracket 17, the lock pin 18 does not hit the engaging surface part 28a of the storage lock stay 28 or the engaging surface part 29a of the pulling-out lock stay 29, so that the lock does not operate. This is the slide and lock device 1 of a portable fire pump for a vehicle characterized by this.

[0023] The lock bracket 17 is provided with a concentric base bearing hole 17a1 and a tip bearing hole 17b1 for pivotally supporting a lock pin 18 on a base end bearing portion 17a and a tip end bearing portion 17b in the left-right direction. A lock window hole 23 into which a lock engagement and disengagement protrusion 22 of the lock pin 18 is inserted is also provided in one of the base end bearing portions. The relationship between the lock engagement and disengagement protrusion 22 and the lock window hole 23 changes depending on the slide position and rotation angle of the lock pin 18. A compression spring 24 is coaxially arranged in the axial direction of the lock pin 18, one end of which is in contact with the inner surface of the base end bearing portion 17a where the lock window hole 23 of the lock bracket 17 is provided, and the other end is connected to the lock pin 18 by a retaining ring 26 arranged in a groove portion 18a of the lock pin 18, and is provided with a structure for receiving biasing force by the generated spring force. In the storage position 5 inside the vehicle, the operation lever portion 19 pulls out the lock pin 18 in a further deflected direction by the compression spring 24, and by rotating the operation lever portion 19 counterclockwise, the lock window hole 23 of the lock bracket 17 is provided and the tip 22a of the lock engagement and disengagement protrusion 22 of the lock pin 18 is in contact with the outer surface of the lock bracket 17. While maintaining this state, when the carrier slider 16 is operated to the pull-out position 6, the round bar operation portion 30 of the pull-out lock stay 29 arranged on the carrier slider 16 hits the operation lever portion 19 of the lock pin 18, and further, by pushing it down, the lock pin 18 is rotated clockwise so that the lock engagement and disengagement protrusion 22 and the lock window hole 23 are fitted, and the engaging surface portion 29a of the pull-out stay 29 and the tip portion of the lock pin 18 hit by the biasing force of the compression spring 24, which may be a slide-lock device 1 for a portable fire pump for vehicles.

[0024] The storage lock stay 28 and the pull-out lock stay 29 of the carrier slider 16 are provided with engaging surface portions 28a and 29a with the lock pin 18, and may be provided with inclined guide surface portions 28b or 29b for guiding the lock pin 18 on the engaging surface portions 28a or 29a.

Embodiment

[0025] Hereinafter, regarding the portable fire pump for vehicles and the slide and lock device for other transported items of the present invention, an explanation will be given using the slide lifting and locking device 1 of the portable fire pump for vehicles in the embodiment shown in the drawings.

[0026] The slide lifting and locking device 1 of the portable fire pump for vehicles in the embodiment of the present invention includes a loading device 4 for loading the portable fire pump 3 and other transported items on the vehicle 2, a slide mechanism 7 for moving the loading device 4 from the storage position 5 inside the vehicle 2 to the extraction position 6 outside the vehicle and vice versa to the storage position 5 inside the vehicle, a locking device 8 for locking the slide mechanism 7 at the storage position 5 inside the vehicle and the extraction position 6 outside the vehicle, and the loading device 4 in a state where the slide mechanism 7 is locked by the locking device at the extraction position 6 outside the vehicle is equipped with a lifting mechanism 10 for lifting and lowering to the extraction lower position 9 outside the vehicle where it is easy for the operator to unload and load the transported item.

[0027] The loading device 4 has a rail member 12 with a U-shaped cross-section on the base 11 of the loading part 2a at the rear of the vehicle 2, and rail bodies 13 are arranged on the left and right with a space therebetween with their opening surfaces 12a corresponding.

[0028] On the rail body 13, there is provided a transport item slider 16 composed of a front carriage part 14 of the slide mechanism 7 for loading the portable fire pump 3 and moving horizontally along the rail body 13, the lifting mechanism 10 for loading the portable fire pump 3 and moving vertically, and a loading table part 15 for loading the portable fire pump 3, which slides between the storage position 5 inside the vehicle 2 and the extraction position 6 outside the vehicle.

[0029] The locking device 8 is provided on the base 11 that supports the rear side (left side when looking at the vehicle 2 from the rear to the front) of the rail body 13, and the transport item slider 16 is locked at the storage position 5 inside the vehicle 2 and the extraction position 6 outside the vehicle.

[0030] The lock device 8 is provided with a lock bracket 17. The lock bracket 17 is provided with a base bearing hole 17a1 in the base end side bearing portion 17a of the lock pin 18 and a tip bearing hole 17b1 in the tip end side bearing portion 17b at a required interval. The lock pin 18 is arranged to be slidable in a direction transverse to the moving direction of the conveyed object slider 16.

[0031] An operation lever portion 19 is arranged at the base end portion of the lock pin 18. Below the fixing portion 19a of the operation lever portion 19 with the lock pin 18, a rotation angle regulating projection 20 for regulating the rotation angle with the lock pin 18 projects in the direction of the lock bracket 17. The rotation angle around the axis of the lock pin 18 that fits into and slides in the rotation angle regulating hole 21 provided on the opposing surface of the lock bracket 17 is regulated to a required angle.

[0032] Above the fixing portion 19a of the operation lever portion 19 with the lock pin 18, a lock engagement / disengagement projection 22 for pulling and maintaining the lock pin 18 from the locked position to the unlocking side projects in the direction of the bracket 17. It is provided so as to fit into the lock window hole 23 provided in the lock bracket 17 and move the lock pin 18 to the locked position and hold it in that locked position.

[0033] On the inner surface of the base end side bearing portion 17a where the base bearing hole 17a1 of the lock bracket 17 is provided, a spring collar 25 having the same axis as the axis of the base bearing hole 17a1 is integrally connected at one end thereof.

[0034] The protruding other end of the spring collar 25 is provided with a required length that ends in front of the inner surface of the tip end side bearing portion 17b of the lock bracket 17.

[0035] The lock pin 18 penetrates a compression spring 24 accommodated in the spring collar 25 within the lock bracket 17, and the other end of the compression spring 24 is connected to a washer 27 supported by a retaining ring 26 fitted into a groove portion 18a provided at a corresponding portion protruding from the spring collar 25. The entire lock pin 18 is biased in the direction of the tip end portion.

[0036] Pull the operation lever part 19 forward to compress the compression spring 24 disposed between the lock bracket 17 and the lock pin 18, move the lock pin 18 to the unlocking position, and rotate the operation lever part 19 within the rotation angle of the rotation angle regulating hole 21 of the lock bracket 17 into which the rotation angle regulating projection 20 fits, so that the tip of the lock engagement / disengagement projection 22 is on the outer surface of the lock bracket 17. Then, the lock pin 18 is provided to be able to be pulled and fixed in the unlocking position.

[0037] Pull the operation lever part 19 further forward. As shown in FIG. 9, compress the compression spring 24 until the washer 27 supported by the retaining ring 26 of the lock pin 18 hits the protruding other end of the spring collar 25, and it is provided to be able to pull out the tip of the lock pin 18 to a further unlocking position where it is separated.

[0038] When the lock engagement / disengagement projection 22 of the operation lever part 19 of the lock device 8 is on the unlocking side with respect to the lock bracket 17, when the round bar operation part 30 of the draw lock stay 29 reaches the draw position 6 outside the vehicle, it hits the operation lever part 19 and rotates the lock pin 18 integrated with the operation lever part 19. The lock engagement / disengagement projection 22 fits into the lock window hole 23 provided in the lock bracket 17, and the lock pin 18 is moved to the locked position by the biasing force of the compression spring 24 and engaged with the engagement surface part 29a of the draw lock stay 29 to lock the carrier slider 16 at the draw position 6 outside the vehicle. Note that a support part 29c is provided on the draw lock stay 29 and is connected to the front surface side of the round bar operation part 30 to reinforce the strength of the round bar operation part 30.

[0039] It is provided on the inner surface 13a11 of the rear end stopper of the rear end stopper 13a1 provided at the rear end of the rail body 13 on the collision stop surface part on the side opposite to the engagement surface part 29a of the draw lock stay 29.

[0040] On the locking surface on the side opposite to the engaging surface 28a of the storage lock stay 28, a front end stopper 13a2 having a rubber body 13a21 at the front end of the rail body 13 is provided. As will be described in detail later, this front end stopper 13a2 is attached to the base 11 after the carrier slider 16 is slidably set on the rail body 13.

[0041] To return the carrier slider 16 that has been moved to the vehicle-outward pulling-out position 6 and locked to the vehicle-inward storage position 5, the operating lever portion 19 of the locking device 8 is pulled forward by compressing the compression spring 24, and the lock engagement and disengagement protrusion 22 integrated with the operating lever portion 19 is pulled out from the lock window hole 23. The operating lever portion 19 is rotated together with the lock pin 18 to the unlocking maintenance portion of the lock engagement and disengagement protrusion 22, and the operating lever portion 19 is hooked on the tip of the round bar operating portion 30 of the pull-out lock stay 29 to release the lock between the lock pin 18 and the engaging surface 29a of the pull-out lock stay 29, and maintain the unlocked state. Therefore, the hand can be released from the operating lever portion 19 of the locking device 8 and separated from the front end portion of the carrier slider 16, and move to the rear end portion of the carrier slider 16, for example, and grasp the steering rod 53 arranged on the back surface of the rear end portion. When the carrier slider 16 moves in the storage direction and the pull-out lock stay 29 starts to slide and the tip of the round bar operating portion 30 moves to a position where it does not hit the lock pin 18, the lock pin 18 is pushed back by the biasing force of the compression spring 24 until the lock engagement and disengagement protrusion 22 hits the outer surface of the lock bracket 17, and the unlocked state is maintained. And just moving to the vehicle-inward storage position 5 as it is, the unlocked state is maintained and not locked. So, when the carrier slider 16 is slid to the vehicle-inward storage position 5, the operating lever portion 19 is rotated clockwise, the lock pin 18 is rotated to insert the lock engagement and disengagement protrusion 22 into the lock window hole 23, and the locking device 8 is operated so as to become a storage lock.

[0042] When an operator touches the operation lever part 19 that is in the unlocked state at the start or during the movement operation of the load slider 16 and rotates the lock pin 18 and the lock engagement and disengagement protrusion 22 clockwise, if the lock engagement and disengagement protrusion 22 is inserted into the lock window hole 23 and the lock pin 18 is caused to malfunction to the locked position.

[0043] In the configuration of the present invention, in the locked state where the tip of the lock pin 18 protrudes from the lock bracket 17, it collides with the engagement surface portion 28a of the storage lock stay 28 or the engagement surface portion 29a of the pull-out lock stay 29 of the load slider 16, and the movement is blocked, so that the load slider 16 cannot move to the storage position 5 inside the vehicle or the pull-out position 6 outside the vehicle.

[0044] The configuration of the present invention is a configuration for eliminating such inconveniences. On the engagement surface portion 28a of the storage lock stay 28 and the engagement surface portion 29a of the pull-out lock stay 29 of the load slider 16, there are provided an inclined guide surface portion 28b and an inclined guide surface portion 29b that are in contact with the tip of the lock pin 18, compress the compression spring, and slide in the direction of the base end portion. Therefore, due to the biasing force of the compression spring 24, the lock pin 18 slides toward the tip side and enters the locked state on the lock bracket 17 fixed and stationary to the base 11. However, when the inclined guide surface portion 28b of the storage lock stay 28 or the inclined guide surface portion 29b of the pull-out lock stay 29 in the moving direction of the load slider 16 collides, the lock pin 18 can be slid against the biasing force of the compression spring 24 until its terminal edge 28b1 or terminal edge 29b1 passes in the release direction. When the inclined guide surface portion 28b of the storage lock stay 28 or the inclined guide surface portion 29b of the pull-out lock stay 29 passes, the lock pin 18 slides in the tip direction by the biasing force of the compression spring 24 and faces the engagement surface portion 28a of the storage lock stay 28 or the engagement surface portion 29a of the pull-out lock stay 29 to enter the locked state.

[0045] On the square carriage frame 31 of the front carriage portion 14 of the load slider 16, lateral movement rollers 32 are arranged at intervals in the front-rear and left-right directions and protrude laterally.

[0046] This lateral movement roller 32 is inserted into the rail body 13 and is arranged to be movable back and forth.

[0047] A front end collision surface portion 31a is provided on the front end surface of the rectangular bogie frame 31 of the front bogie portion 14.

[0048] A cylinder 33 is erected on the rectangular bogie frame 31 of the front bogie portion 14, and a piston rod 34 protruding upward from its upper end is arranged. A chain wheel 35 is pivotally supported at the upper end of the piston rod 34.

[0049] A manual hydraulic unit 36 is provided on the rectangular bogie frame 31 and is connected to the cylinder 33. By operating the bar handle 37 of the manual hydraulic unit 36 to feed oil from the tank 38 to the cylinder 33, as shown in Fig. 11, the piston rod 34 can be raised.

[0050] After moving the conveyance object slider 16 to the pull-out position 6 outside the rear part of the vehicle 2 and locking it with the locking device 8, when the knob 39 of the manual hydraulic unit 36 is rotated to open the on-off valve 40 and return the oil in the cylinder 33 to the tank 38, the piston rod 34 descends, and the chain wheel 35 arranged at the upper end of the piston rod 34 descends.

[0051] One end of the chain 41 suspended on the chain wheel 35 is fixed to the support base 42 on the rectangular bogie frame 31, and the other end is connected to a lifting slider 44 that is arranged to be vertically movable on a lifting slider post 43 erected on the rectangular bogie frame 31.

[0052] The lifting slider 44 is provided with lifting rollers 45 in the vertical and horizontal directions. A loading table portion frame 47 protruding horizontally rearward is attached to the lower bracket portion 46 at its lower end portion, and a loading table portion 15 is arranged on its upper surface. Further, a storage lock stay attachment arm 47a is provided on the side of the loading table portion frame 47 opposite to the locking device 8, and a storage lock stay 28 is arranged.

[0053] On the loading table portion 15, a portable fire pump fixing mechanism 48 is provided which can easily and quickly remove heavy objects such as portable fire pumps. Further, on the upper surface of the rail body 13, a loading table portion roller 49 that rolls and supports the loading weight of the loading table portion 15 is provided on the loading table portion frame 47.

[0054] After the transport object slider 16 pulls out the loading table portion 15 to the drawing-out position 6 outside the vehicle at the rear of the vehicle and is locked by the locking device 8, when the knob 39 is rotated to open the on-off valve 40 and return the oil in the cylinder 33 to the tank 38, the piston rod 34 descends due to the gravity of the loaded object, and the chain wheel 35 provided at the upper end of the piston rod 34 is lowered.

[0055] Within the stroke range of the piston rod 34, the stop during its ascent and descent can be achieved by rotating the knob 39 in the opposite closing direction, closing the hydraulic circuit, and stopping the descent of the piston rod 34. Thus, as shown in FIG. 2, the loading table portion 15 can be set at a desired low descending position outside the vehicle.

[0056] After the digestion activity is completed, the portable fire pump 3 is loaded onto the loading table portion 15 at the low descending position. Thereafter, the piston rod 34 is raised by operating the bar handle 37, pushing up the loading table portion 15 to the upper surface of the uppermost rail body 13, and the loading table portion roller 49 rolls on the upper surface of the rail body 13 to return to a movable position. Releasing the lock at the drawing-out position 6 outside the vehicle and moving the transport object slider 16 to the storage position 5 inside the vehicle is as described above.

[0057] In order to load the portable fire pump 3, which is a heavy object, and travel at high speed towards the fire site, as a means for directly connecting the vehicle 2 and the loading table portion 15 to the vehicle, a base frame 50 attached below the loading table portion 15 is provided with a vibration-damping shaft 51 with a pointed tip, and when the transport object slider 16 is stored in the vehicle 2, a shaft receiver 52 having a pointed bearing hole 52a into which the vibration-damping shaft 51 fits on the base 11 of the loading portion 2a of the vehicle 2 is provided.

Industrial Applicability

[0058] The present invention is configured as described above, and has safety and reliable locking operation for highly urgent transportation operations such as rushing to the fire site.

[0059] Since the present invention has higher strength than the conventional interlock mechanism near the rotating shaft, it can withstand misoperations in a state where a load is applied, thus having the effect of enhancing safety.

[0060] Since the present invention uses a manual hydraulic unit as a power source, the selection range of the operation speed is wide according to the urgency, and the work can be performed quickly, safely, and reliably, and it has a large energy-saving effect.

Explanation of Reference Numerals

[0061] 1 Slide lifting and locking device for a portable fire pump for a vehicle according to an embodiment of the present invention 2 Vehicle 2a Loading section 3 Portable fire pump 4 Loading device 5 Storage position inside the vehicle 6 Pull-out position outside the vehicle 7 Slide mechanism 8 Locking device 9 Pull-out bottom position 10 Lifting mechanism 11 Base 12 U-shaped rail material 12a Opening surface 13 Rail body 13a1 Rear end stopper 13a11 Inner surface of the rear end stopper 13a2 Front end stopper 13a21 Rubber body 14 Front trolley section 15 Loading table section 16 Transport object slider 17 Locking bracket 17a Base end side bearing portion 17a1 Base end bearing hole 17b Tip end side bearing portion 17b1 Tip end bearing hole 18 Lock pin 18a Groove part 19 Operation lever part 19a Fixing part 20 Rotation angle regulating projection 21 Rotation angle regulating hole 22 Lock engagement / disengagement projection 22a Tip surface 23 Lock window hole 24 Compression spring 25 Spring collar 26 Retaining ring 27 Washer 28 Storage lock stay 28a Engagement surface 28b Inclined guide surface 28b1 Terminal edge 29 Pull-out lock stay 29a Engagement surface 29b Inclined guide surface 29b1 Terminal edge 29c Support part 30 Round bar operation part 31 Square platform carriage frame 31a Front end collision surface 31b Pull-out lock stay mounting arm 32 Lateral movement roller 33 Cylinder 34 Piston rod 35 Chain wheel 36 Manual hydraulic unit 37 Bar handle 38 Tank 39 Knob 40 On-off valve 41 Chain 42 Support base 43 Lifting slider post 44 Lifting slider 45 Lifting roller 46 Lower mounting bracket part 47 Loading platform part frame 47a Storage lock stay mounting arm 48 Portable fire pump fixing mechanism 49 Loading platform part roller 50 Frame 51 Stop Shaft 52 Shaft Receiver 52a Tapered Bearing Hole 53 Steering Rod

Claims

1. A slide-lock device comprising a loading device for loading a portable fire pump or other cargo onto a vehicle, a slide mechanism for moving the loading device from a storage position inside the vehicle to a retracted position outside the vehicle and vice versa, and a locking device for locking the slide mechanism in the storage position inside the vehicle and the retracted position outside the vehicle. In the slide-lock device, the locking device is fixed to the base side of the slide mechanism, and a locking pin supported by a bearing hole of a lock bracket of the locking device is arranged corresponding to an engaging surface portion of a storage lock stay arranged corresponding to the rear end portion of a cargo slider provided in the slide mechanism, and is also arranged to be engageable with an engaging surface portion of a retracted lock stay arranged corresponding to the front end portion of the cargo slider. When the locking pin is fixed to the base end portion thereof and the locking engagement protrusion provided on the operation lever portion is inserted into the lock window hole of the lock bracket, the locking pin hits the engaging surface portion of each corresponding lock stay and the locking operates. When the locking engagement protrusion of the locking pin protrudes outward from the lock window hole of the lock bracket, the locking pin does not hit the engaging surface portion of each lock stay, so the locking does not operate. A slide-lock device for a portable fire pump and other cargo for a vehicle, characterized by the above.

2. The lock bracket of the locking device is provided with a base-end bearing portion and a tip-end bearing portion having concentric bearing holes for pivotally supporting a lock pin, which are spaced apart in the left-right direction. The base-end bearing portion is provided with a lock window hole into which a locking engagement / detachment protrusion of the lock pin is inserted. The locking engagement / detachment protrusion and the lock window hole change according to the slide position and rotation angle of the lock pin. In the axial direction of the lock pin, a compression spring is coaxially arranged, one end of which is in contact with the inner surface of the base-end bearing portion provided with the lock window hole of the lock bracket, and the other end is biased by a spring force generated by contacting the lock pin by means of a retaining ring arranged in a groove portion of the lock pin. When the carrier slider is in the storage position inside the vehicle, the lock pin is pulled out by the operation lever portion in the direction of deflecting the compression spring, the operation lever portion is rotated counterclockwise, and the outer surface of the base-end bearing portion provided with the lock window hole of the lock bracket and the tip of the locking engagement / detachment protrusion of the lock pin are in contact with each other, thereby holding the unlocked state. When the carrier slider is moved to the pull-out position outside the vehicle, the round bar operation portion of the pull-out lock stay arranged on the carrier slider hits the operation lever portion of the lock pin, and by moving and pushing it down, the lock pin is rotated clockwise. When the locking engagement / detachment protrusion and the lock window hole are fitted, the lock pin is moved by the biasing force of the compression spring, and the engagement surface portion of the pull-out lock stay and the axial surface of the lock pin are configured to come into contact with each other. The slidable lock device for a portable fire pump for a vehicle and other carriers according to claim 1.

3. The storage lock stay and the pull-out lock stay provided on the carrier slider are provided with engagement surface portions with the lock pin, and are provided with inclined guide surface portions for guiding the lock pin on those engagement surface portions. The slidable lock device for a portable fire pump for a vehicle and other carriers according to claim 1 or claim 2.

Images