JPH0411087Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a lifting pallet fixing device that can fix the lifted pallet at any position during lifting and lowering in a second-floor parking lot.

(Prior Art) A conventional fixing device for lifting pallets in this type of second-floor parking lot secures the pallet when it is lifted to the upper end position to maintain safety.

(Problem to be solved by the invention) The above-mentioned conventional lifting pallet fixing device in a second-floor parking lot is difficult to use when a car is placed on a pallet and lifted by a chain. The problem is that when chain cutting occurs, there is a risk that the pallet and the vehicle will fall.

(Means for Solving the Problems) Therefore, in order to solve the above problems, this invention installs holding rods 2 upright at the intermediate parts of the side frames 1 on both sides of the parking frame a of the second floor parking, A shaft rod 6 is rotatably installed across the supports 5 at the intermediate portion on both sides of the pallet 4 and the bearings 10 and 11 at the rear of the pallet 4, which is lifted by a chain 3 disposed within the parking frame a and driven. Receipt of money 5
A through hole 7 suitably larger than the diameter of the holding rod 2 is made in the middle part of the part, and the through hole 7 fixes the base end of the fixing plate 8 that loosely fits on the holding rod 2, and the rear part is connected by an interlocking mechanism. A guide plate 14 is connected to the solenoid 19, has a through hole 15 in the middle below the fixed plate 8 corresponding to the fixed plate 8, and has the through hole 15 fitted into the holding rod 2. A guide plate 14 is fixed to the holder 5. The fixing plate 8 of the shaft rod 6 is always in a horizontal state, and the chain 3 is cut to connect the solenoid 1.
A fixing device for a lifting pallet in a second-floor parking area is constituted by compressing the shaft rod 6 by a spring 13 fitted to the shaft rod 6 so as to rotate upward when the power supply to the shaft rod 9 is stopped.

(Function) Since the fixing plate 8 of the pallet 4 is always in a horizontal state, its through hole 7 is loosely fitted into the holding rod 2, so the operation of the chain 3 causes the pallet 4 to be held by the fixing plate 8. Go up and down along the rod 2.

Therefore, if for some reason, chain 3
When the solenoid 19 is disconnected, the solenoid 19 is de-energized and the elasticity of the spring 13 causes the fixing plate 8 to rotate upward together with the shaft 6 using the shaft 6 as a fulcrum. The inner and outer edges of the through hole 7 are pressed against the holding rod 2 and fixed to the holding rod 2, and the pallet 4 is fixed to the holding rod 2 by the fixing plates 8 on both sides.
It is supported by the holding rod 2 and prevented from falling.

(Example) To explain the structure of one embodiment of this invention shown in the drawings, a indicates a parking frame of the second floor parking, 1 is a double-shaped side frame made of H-beam steel, and the side frame 1 is A holding rod 2 made of soft steel is erected in the middle part. Reference numeral 3 designates a lifting chain, and 4 designates a lifting pallet. A receiver 5 is fixed to the middle part of both sides of the chain, and a armrest 9 that projects rearward is fixed to the rear part of the chain.

b indicates the operating mechanism of the fixed plate 8; 6 is the shaft rod on both sides of the operating mechanism b;
The proximal end of a fixing plate 8 made of hard steel with a through hole 7 suitably larger than the diameter of the holding rod 2 in the middle part is attached to the base end of the fixed plate 8, which is rotatably installed across the support plate 11. A downwardly directed arm rod 12 is fixed to each end, and a spring 13 fitted to the front part of the shaft rod 6 presses the fixed plate 8 so as to rotate upward. Reference numeral 14 denotes a guide plate fixed to the receiver 5 below the fixed plate 8 in a corresponding manner, and a through hole 15 is formed in the middle part of the guide plate. In addition, a chain wheel 16 is placed at the middle of both sides of the pallet 4, and a chain wheel 17 is placed at the tip of the arm 12.
and guide wheels 18 are rotatably supported. Reference numeral 19 denotes a solenoid attached to the middle part of the rear surface of the pallet 4, and this solenoid is connected to the arm rods 12 on both sides by operating rods 20, respectively.

Reference numeral 21 designates an upwardly open chain cut detection box provided on the front end of the side frame 1, in which a switch 22 is housed. 23 is a pressure plate placed on the sensing box 21;
Reference numeral 4 denotes a hanging rod inserted into the upper wall of the side frame 1 and the through hole of the pressing plate 23 so as to be vertically movable.The upper protrusion of the hanging rod 24 is provided with a double-nut stopper 25 screwed onto the screw. A spring 26 fitted to a hanging rod 24 is interposed between the frame 1 and the pressing plate 23. Guide rollers 27 and 28 are pivotally supported at the front and back of the upper end of the side frame 1, and 29 is a main shaft rotatably installed at the rear lower part of the parking frame a, with chain wheels 30 attached to both sides thereof. 31 is a stopper provided at the rear lower end of the side frame 1. Therefore, on both sides, the fixing plate 8 of the pallet 4 and the through holes 7, 15 of the guide plate 14 are fitted into the holding rod 2, and the guide ring 18 is inserted into the groove of the rear column of the side frame 1 as shown in FIG. and connect both ends of the chain 3 to the hanging rod 24 and the stopper 3.
1, and the chain 3 is hung from below the chain wheel 16, above the guide rollers 27 and 28, below the chain wheel 30, and above the chain wheel 17, and the pallet 4 is suspended from the parking frame a by the chain 3. .

Reference numerals 32 and 33 denote a forward/reverse rotating motor and a speed reducer that are installed vertically at the rear of one side of the parking frame a.
The output shaft and the main shaft 29 are respectively connected by a chain transmission mechanism 35. Thus, an electric circuit is formed between the switch 22, the motor 32, and the solenoid 19.

A is a car that has entered pallet 4.

Next, its effect will be explained. Normally, the chain 3 is tensed due to the weight of the pallet 4, and the hanging rod 24 is pulled downward, and as shown in FIG. be done. At that time, the switch 22 is turned on and energizes the motor 32 and solenoid 19.
The solenoid 19 pulls the operating rods 20 on both sides inward, and the shaft rod 6 with the fixing plate 8 releases the spring 1.
6, the fixing plate 8 becomes horizontal as shown in FIG. 6, and the through hole 7 of the fixing plate 8 is loosely fitted into the holding rod 2. It has become a state.

Therefore, if the motor 32 is rotated in the forward direction, the transmission mechanism 34, the speed reducer 33, and the transmission mechanism 3 are
5, the main shaft 29 rotates in the normal direction, and by driving the chain 3 in the direction of the arrow in FIG. 4 is lifted.

On the other hand, when the motor 32 is rotated in the opposite direction while the pallet 4 is being lifted up, the pallet 4 is lowered by operating in the opposite direction.

Therefore, if for some reason, chain 3
When the chain 3 is cut, the hanging rod 24 loses its downward pull, and the pressure plate 23 is lifted by the elasticity of the spring 26, turning off the switch 22, and the motor 32 and solenoid are turned off. Power to 19 stops. Therefore,
When the motor 32 stops, the elasticity of the spring 13 causes the shaft rod 6 to rotate in the direction of the arrow in FIG.
As shown in FIG. 7, the pallet rotates upward about the shaft 6 as a fulcrum, and the downward force due to the weight of the pallet 4 is applied to the fixing plate 8, causing the inner and outer edges of the through hole 7 of the fixing plate 8 to have low hardness. The fixing plate 8 is fixed to the holding bar 2 by being bitten into pressure contact with the holding bar 2, and the pallet 4 is supported by the holding bar 2 by the fixing plates 8 on both sides thereof and is prevented from falling.

After that, when the chain 3 is repaired, the pressing plate 23 lowers the spring 26 and descends in the same way as above.
As a result, the switch 22 is pressed and the switch 22 is pressed.
energizes the motor 32 and solenoid 19. Therefore, when the motor 32 is rotated in the forward direction and the pallet 4 is slightly lifted, the pressure contact between the fixing plate 8 and the holding rod 2 is released, so the solenoid 19 pulls the operating rods 20 on both sides inward, and the shaft rod is moved through the arm rod 12. 6 rotates in the direction opposite to the arrow in FIG. 7 against the elasticity of the spring 13, and the fixing plate 8 attached to the shaft rod 6 returns to the horizontal state as shown in FIG. is loosely fitted into the holding rod 2 and is no longer fixed by the fixing plate 8. Therefore, the pallet 4 can be moved up and down thereafter.

(Effects of the invention) The lifting pallet fixing device in the second floor parking lot of this invention has the following remarkable effects.

(1) The guide plate is located below the fixed plate, and since the fixed plate is always in a horizontal position and its through hole is loosely fitted to the holding rod, the fixed plate cannot be used to raise or lower the pallet. It has no effect whatsoever.

(2) If the chain that lifts the pallet breaks for some reason, the fixing plate will rotate upward due to the elasticity of the spring, and the downward force due to the weight of the pallet will be applied to the fixing plate, fixing it. The inner and outer edges of the through hole in the plate come into pressure contact with the holding rod, and the fixed plate is fixed to the holding rod, and the pallet is supported by the holding rod by the fixed plates on both sides, preventing the pallet and the car placed on it from falling. It is beneficial for safety because it is preventable and poses no danger.

(3) The larger the weight of the pallet, etc., the more strongly the fixing plate comes into contact with the holding rod, and the pallet is always properly fixed, which is more useful in practice.

(4) The inner and outer edges of the through hole of the fixing plate are pressed against the holding rod to fix the fixing plate. Therefore, (a) the fixing plate can be fixed to the holding rod at any position above or below the holding rod, and there is no step, which is advantageous.

(b) When the fixing plate is fixed to the holding rod, there is no shock when it is fixed because no sudden dynamic load is applied.

(5) The members of the fixing device, such as the holding rod and the fixing plate, can be small, and there is no risk of damage to the members.

(6) A guide plate fixed to the pallet receiver is provided below the fixed plate, and the through holes of the fixed plate and guide plate are fitted to the holding rod, so the fixed plate is always held in a horizontal position. Moreover, the movement of the pallet up and down is guided by the guide plate, and the movement of the fixed plate is light and smooth.

(7) It has a simple structure and can be manufactured easily and inexpensively.

[Brief explanation of the drawing]

Fig. 1 is a side view of a second-floor parking lot according to an embodiment of this invention, Fig. 2 is a plan sectional view, Fig. 3 is an oblique view of its fixed operating part, Fig. 4 is a rear view, and Fig. 5 is its FIG. 3 is an enlarged plan view of the fixing part, showing its normal state. Figures 6 and 7 are front sectional views of the same as above;
The figure shows the normal state, and FIG. 7 shows the state when the chain is cut. FIG. 8 is a side view of the pallet lifting section, and FIG. 9 is an enlarged side sectional view of the cutting sensing section of the chain. a... Parking frame, b... Operating mechanism,
1... Side frame, 2... Holding rod, 3... Chain, 4...
... Pallet, 5 ... Receiver, 6 ... Shaft rod, 7 ... Through hole, 8 ... Fixing plate.

Claims (1)

[Scope of utility model registration request] Holding rods are set up in the middle of the side frames on both sides of the parking frame, and the shafts are placed between the supports in the middle of both sides of the pallet and the bearings in the rear of the pallet, which is lifted by a chain that is placed inside the parking frame and driven. A fixing plate having a rod rotatably mounted thereon, and a through hole suitably larger than the diameter of the holding rod is formed in the middle part of the receiving part of the shaft rod, and the through hole fits loosely into the holding rod. The proximal end of is fixed, and the rear part is connected to the solenoid by an interlocking mechanism, and a through hole is formed in the lower part of the fixing plate in the middle part corresponding to the fixing plate, and the through hole fits into the holding rod. A guide plate is fixedly attached to the support, and the fixing plate of the shaft rod is always in a horizontal state, and the shaft is rotated upward when the chain is cut and energization to the solenoid is stopped. A fixing device for lifting pallets in a second-story parking lot, which is made by compressing a rod with a spring fitted to the shaft rod.