JP6514761B2 - Tire service car that can hold a small jack - Google Patents

Description

  The present invention relates to a tire service car that is light in weight and can hold a small jack that can be carried by a worker on the wall of a box.

  There are various types of jacks, but the jack targeted by the present invention is not a large installation type, but a small and lightweight jack that can move the location. By the way, conventionally, mobile type simple jacks are widely used, and there are various usage applications of this mobile type simple jack, but in general, when replacing the tire of the vehicle, the vehicle body is held so that the wheels float up You can raise it. In addition, it can be used at the time of work which is carried out by lifting the vehicle body also at the time of parts replacement of the vehicle bottom and oil replacement.

In such a case, the plunger of the hydraulic cylinder is made to project when the movable simple jack is moved and disposed at the bottom of the vehicle body.
FIG. 6 is an external view showing a conventionally used mobile simplified jack. In the figure, (a) shows a main body, (b) shows a wheel, (c) a handle, and (d) shows a hydraulic cylinder. A hydraulic cylinder (d) provided with a plunger (e) is provided on the main body (i), and the plunger (e) can be protruded by pivoting the handle (c) up and down.

  By the way, wheels (b) and (b) are attached to both sides of the main body (a), and can be pulled by holding a grip portion (f) attached to the tip of the handle (c). However, the two wheels (b) and (b) are attached to the handle side of the main body (a), and when holding the grip portion (f) and pulling and moving the handle (c), the main body (a) The bottom of) is rubbed against the ground and a very large force is required. In particular, if the ground is uneven, it may become immobile even if it is pulled.

  Under the present circumstances, even if it tries to lift a jack by hand, the weight is large and not easy. In the case of a mobile simplified jack of the type shown in the figure, its weight is about 40 to 50 kg, and it is difficult to carry it by hand to the required place. Therefore, even if the ground has some irregularities, it must move by pulling the handle (C).

The “mobile simplified jack” according to JP-A-2004-307093 and the “mobile simplified car jack according to JP-A-2012-136318” are jacks of the same type as that shown in FIG.
"Mobile simple jack" according to JP-A-2004-307093 "Moving type simplified vehicle jack" according to JP 2012-136318 A

  Thus, the conventional mobile simplified jack has the above problems. The problem to be solved by the present invention is this problem, which is a small-sized, lightweight, small-sized jack that can be carried by hand, and provides a tire service car that can hold the small jack on the wall of a box. Do.

  The small jack targeted by the present invention is light and has a weight that can be carried and carried by the operator. Although it is lighter than the conventional mobile simplified jack and less than 30 kg, the specific weight is not limited. By the way, the small jack is provided with a hydraulic cylinder having a plunger at the tip of the main body, and wheels are attached to both sides on the rear side. The handle is attached to the rear of the main body and can be turned forward and locked in that position.

The handle, which is turned forward, is substantially horizontal, so that it can be gripped and lifted. In addition, the handle is locked in a position where it stands upright and extends upward, and is also locked in a position where it falls backward.
If the jack operates a lever attached to the handle, air from the outside can be supplied and the plunger of the hydraulic cylinder can project upward to push up the vehicle.

On the other hand, the small jack targeted by the present invention is configured so as to be able to be hooked to the wall of a box mounted on a carrier of a tire service car.
Therefore, a pair of locking fittings are attached to the wall of the box at a predetermined interval, and claws are attached to the wall at a predetermined interval. The locking metal fitting is formed with an engaging groove for engaging both wheel shafts, and the claw is shaped such that a convex piece protruding from the side surface of the hydraulic cylinder can be engaged. It is located above the bracket. Here, the specific shapes of the locking metal fitting and the claw are not particularly limited.

The small jack targeted by the present invention is light weight less than 30 kg, and the wheel can be carried around by hand without rolling on the ground and moving. Therefore, even if there are some irregularities on the ground, it can be quickly transported to the necessary place without any problem.
The jack has a short handle and can be locked in a horizontal position so that it can be gripped and lifted.

  On the other hand, it can be hooked to the wall of the box mounted on the carrier of the tire service car, and therefore the jacks are not arranged on the carrier floor and do not get in the way. For this reason, the locking metal fitting and the claw are attached to the wall surface of the box at a predetermined distance, and stable mounting is possible without falling from the wall surface by the sway of the vehicle accompanying the traveling of the tire service car.

BRIEF DESCRIPTION OF THE DRAWINGS It is an Example which shows the small jack which concerns on this invention, (a) is a top view, (b) Front view. When the operator holds the small jack carried by hand on the wall. The example which shows the axial part structure which pivotally supports the handle. When the pin is fitted in the insertion hole formed in the rotation lock plate that locks the direction of the handle. It represents a specific position of the handle attached to the jack body. Conventional common mobile small jack.

FIG. 1 is an external view showing a small jack targeted by the present invention, in which (a) shows a plan view and (b) shows a front view. In the figure, 1 represents a main body, 2 represents a wheel, 3 represents a handle, the main body 1 has a hydraulic cylinder 4, and the hydraulic cylinder 4 has a plunger 5. The wheels 2 and 2 are attached to the rear sides of the main body 1, and the hydraulic cylinder 4 is provided on the front side of the main body 1.
Here, if hydraulic oil is supplied to the hydraulic cylinder 4, the plunger 5 can be protruded and extended upward.

The handle 3 is attached to the rear of the main body 1 and attached to the shaft 6 so that the handle 3 can swing up and down. Moreover, as shown in FIG. 1 (b), the handle 3 is locked in three directions.
That is, in the case where the handle 3 is disposed horizontally and extends to the front side of the main body 1, there are three cases in the case where the handle 3 is erected vertically upward and in the case where the handle 3 is inclined backward. Become. Of course, it can also be configured to lock at the other positions described above.

  A pedal 7 is attached to the rear side portion of the main body 1, and pressing the pedal 7 unlocks the lock to allow the handle 3 to swing up and down, thereby functioning to relock at a predetermined position. Here, the handle 3 is substantially L-shaped, so that a space 8 of an appropriate size is formed between the handle 3 and the upper surface of the main body 1 in a horizontally extended state, and the handle 8 is put in the space 8 I can hold three.

  Since the small jack targeted by the present invention is lightweight (less than 30 kg), it can be carried by holding the horizontal handle 3, lowered to the ground at a predetermined place, and placed at the bottom of the vehicle. When placed at the bottom of the vehicle, the handle 3 can be extended vertically upward or turned backwards, but the front side of the main body 1 is lifted by pushing the tip of the handle 3 downward and the wheel 2 , 2 are grounded to the ground. Then, the wheels 2 and 2 can be rolled and moved to a predetermined position.

If the air plunger is supplied from the outside when the four plungers 5 of the hydraulic cylinder are placed at a predetermined position, the operating oil is supplied to the hydraulic cylinder 4 by the operation of the air pump, and the plunger 5 projects upward and the vehicle Is lifted.
Here, the air circuit and the hydraulic circuit formed inside the main body of the small jack are not particularly limited, and are the same as the conventional ones, so that the description thereof will be omitted.

  By the way, the small jack is generally mounted inside a box attached to a carrier of a tire service car. Moreover, the jack targeted by the present invention is designed to be able to be latched on the wall of the box because it is small and light. Small convex pieces 9, 9 project outward on the front side both sides of the main body 1, and the wheels 2, 2 mounted on both sides of the rear side of the main body 1 have clearances 25, 25 between the sides of the main body There is.

  FIG. 2 shows the case where the worker 11 holds the small jack in hand and carries it to the service car and holds it on the wall 12 of the box. That is, the small-sized jack can be hooked and attached to the wall surface 12 without being placed on the floor surface of the loading platform. Therefore, the metal fittings 13 and 13 are attached in pairs to the wall surface 12 at a predetermined distance, and the claws 14 and 14 are provided at a predetermined distance above the metal fittings 13 and 13. It is attached in pairs. That is, a total of four metal fittings of two locking metal fittings 13 and 13 and two claws 14 and 14 hold.

By the way, both the claws 14 and 14 form an approximate L shape, and the biconvex pieces 9 and 9 protruding to the hydraulic cylinder side of the main body 1 can be locked to the claws 14 and 14. Further, engaging grooves 15, 15 are formed in the locking metal fittings 13, 13, and shafts 10, 10 existing between the main body 1 and the wheel 2 are engaged with the engaging grooves 15, 15. Can do.
That is, the metal fittings 13, 13 are fitted into the gaps 25, 25 formed between the side surfaces of the main body and the wheels 2, 2, and the shafts 10, 10 are engaged with the engagement grooves 15, 15.

  In this way, the biconvex pieces 9 and 9 of the small jack and the shafts 10 and 10 engage with the claws 14 and 14 and the locking members 13 and 13, respectively, without falling off the wall surface 12 and at a predetermined place. It is stably held. Then, even if the service car shakes as the vehicle travels, the small jack held on the wall 12 does not fall off. Here, the distance between the two metal fittings 13 and 13 is increased, and the shaft tips projecting from the wheels 2 and 2 are engaged with the engagement grooves 15 and 15 provided in the metal fittings 13 and 13. It is also possible.

  FIG. 3 is a specific example showing the shaft structure to which the handle 3 is attached. A shaft 18 is stretched between the side plates 17 and 17 constituting the main body 1, and a coil spring 19 is attached to the outer periphery of one side of the shaft 18, and the coil spring 19 urges a spring force to the rotary socket 16. ing. The rotary socket 16 is concentric with the shaft 18, and one side of the shaft 18 protrudes outward through a hole provided in the side plate 17, and the tip of the shaft 18 is engaged with the L-shaped pedal .

In addition, a bolt extending from the bearing 20 is screwed to connect the other end of the shaft 18. Therefore, the side end 21 of the rotary socket 16 is sandwiched between the bearing 20 and the tip of the shaft 18 via a bolt. Further, a pin 22 is attached to the side end 21 and the pin 22 is fitted in a hole formed in the rotation lock plate 23 attached to the side plate.
Therefore, the rotary socket 16 can not be rotated by the pin 22 being inserted into the hole of the rotary lock plate 23, and is locked.

  FIG. 3 (b) shows the case where the lock is unlocked. However, if the L-shaped pedal 7 is depressed, the shaft 18 is pulled to the right and the rotary socket 16 is also moved to the right at the same time. As a result, the pin 22 attached to the side end 21 of the rotary socket 16 is disengaged from the insertion hole 26 of the rotary lock plate 23, and the rotary socket 16 can be rotated. Therefore, the orientation of the handle 3 extending from the rotary socket 16 can be changed.

FIG. 4 shows the case where the pin 22 is inserted into the insertion hole 26 provided in the rotation lock plate 23 to position the rotation angle of the rotation socket 16. In the same figure, the insertion hole 26 which formed the oblique line represents the state which the pin 22 has inserted.
Two pins 22, 22 are attached to the side end 21 of the rotary socket 16, and the two pins 22, 22 are fitted into and locked in insertion holes 26, 26 formed in the rotary lock plate 23.

FIG. 4 (a) shows the case where the handle 3 falls down and faces forward, and the handle 3 shown in FIG. 5 is at the position (a).
FIG. 4B shows the case where the handle 3 shown in FIG. 5 is in the position of FIG. 5B with the handle 3 standing up.
FIG. 4C shows the case where the handle 3 shown in FIG. 5 is in the position of FIG.

1 body 2 wheel 3 handle 4 hydraulic cylinder 5 plunger 6 axis 7 pedal 8 space 9 convex piece
10 axis
11 workers
12 wall
13 Locking bracket
14 nails
15 engagement groove
16 rotating socket
17 side plate
18 axis
19 coil spring
20 bearings
21 side edge
22 pin
23 Rotating lock plate
25 gaps
26 Insertion hole

Claims (2)

In a tire service car equipped with a tire attachment / detachment device, a tire balancer device, an air filling machine, etc. on a loading platform, and a box capable of covering each of these devices mounted, in order to hold a small jack on the box wall, The tabs are mounted in a pair on both sides of the hydraulic cylinder provided on the front side of the jack body with the outwardly projecting convex pieces engaged, and the jack body and the wheel attached to the rear part of the jack body Fitting a pair of metal fittings that engage with the wheel shaft by inserting them into the gap formed between the two, and holding the small jack with the two claws and the two metal fittings A tire service car characterized by what it can do. 2. The tire service car according to claim 1 , wherein the distance between the pair of locking brackets is increased so that the locking brackets lock to the end of the shaft projecting outward from the wheel .

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