JP2020007056A - Vehicle push-up device and vehicle push-up device - Google Patents

Abstract

To provide a vehicle push-up device and a vehicle push-up method capable of surely protecting vehicles from flood damage due to flooding on the ground surface by quickly raising a whole vehicle body in a stable state.SOLUTION: A vehicle push-up device 10 comprises bag bodies 20. The bag bodies 20 are buried along the ground surface and wheels 3, 3a of a vehicle 1 are mounted on wheel push-up parts 21, 21a of the bag bodies 20. The wheel push-up parts 21, 21a are inflated by pressure of the gas or the liquid sealed in the bag bodies 20 and the wheels 3, 3a are pushed up.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle lifting device and a vehicle lifting method, and more particularly to a vehicle lifting device and a vehicle lifting method using pressure of gas or liquid.

  In recent years, flood damage due to sudden heavy rain has occurred in various parts of Japan. Flood damage caused by seawater surges, such as storm surges caused by typhoons and tsunamis caused by earthquakes, is also common. When the flooding of the ground surface caused by such factors reaches a certain height, the passenger car has a small ground clearance at the bottom of the vehicle body, so that the inside of the vehicle and the engine room will be flooded, and the failure of the engine and electrical equipment, etc. Furthermore, it may cause human damage.

  For this reason, it is necessary to provide vehicles with means that can raise the ground clearance at the bottom of the vehicle in a short time and without much human labor when they feel that they will be affected by the flood. desired. In addition, it is preferable that the vehicle is provided with a structure that can be stored in a trunk or the like in a compact state.

  Here, as means for raising the ground clearance at the bottom of the vehicle, conventionally, for example, as described in Patent Document 1, Patent Document 2, and Patent Document 3, a vehicle lifting device that pushes up a vehicle using gas pressure is disclosed. (Air jacks) are known.

  Here, a structure and a method of use common to these conventional air jacks will be described. Each air jack has a bag that can be inflated by the pressure of the enclosed gas (for example, vehicle exhaust gas). When using the air jack, one of the bottoms of the vehicle body is set as a push-up point (jack point), and the bag is placed on the ground surface (road surface) immediately below the push-up point. The bag is provided with a gas inlet, and the gas inlet is connected to an exhaust port of the vehicle via, for example, a hose. The bag body has, for example, a bellows structure. By injecting a gas (exhaust gas) into the bag body from a gas inlet, the bag body expands and displaces upward, and the upper end of the bag body eventually becomes a jack of the vehicle. Contact points. Further, by continuously injecting gas into the bag, the upper end of the bag is raised, and accordingly, the jack point at the bottom of the vehicle body is raised (jacked up).

  In this way, the air jack uses gas pressure and requires less human labor than a normal vise structure jack. It is conceivable to increase the ground clearance at the bottom.

Japanese Utility Model Publication No. 49-8975 No. 3038292 Japanese Utility Model Publication No. 64-29392

  However, to avoid flood damage, it is desirable to raise the ground clearance at the bottom of the entire vehicle body. This is because if there is a portion where the height above the ground cannot be increased even at one location, the portion may be damaged by flooding.

  Here, when a conventional air jack is used, the jack point is the side end of the vehicle body bottom, and the side end of the opposite vehicle body bottom is not jacked up. For example, when jacking up the right end of the bottom of the vehicle body between the front wheel and the rear wheel, the right part of the vehicle body rises, while the left part remains at the original height without rising, and the left part is flooded. There is a fear.

  In addition, it is conceivable to set the jack point at the center of the left and right of the bottom of the car body and raise the whole car body by jacking up at this one place, but in this case the car body that was jacked up is unstable, Even if a slight impact is applied, there is a possibility that it is immediately tilted.

  It is also conceivable to set jack points on both left and right ends of the bottom of the vehicle body and push up the vehicle body at each jack point using two air jacks. However, the jack point at the bottom of the body at the original height has a considerable ground clearance, and for each air jack, raising this jack point requires injecting a considerable amount of gas into the bag. There is. If two such air jacks were used, more gas would be required, and the air inlets of each air jack would be located separately on the left and right sides of the vehicle, making the air injection work complicated. It is. For this reason, it takes a long time to jack up.

  In order to reduce the gas injection amount, for example, a frame should be placed in the bag body, and it should have a certain height even in the initial state where gas is not injected, and the upward displacement during jack-up should be small. However, in this case, the bag in the initial state is not compact, and it is more difficult to keep a pair of air jacks having such a bag in the vehicle.

  The present invention has been made in order to solve the above-described problems, and has a vehicle push-up capable of efficiently and stably raising the entire vehicle body in a short time in order to avoid flood damage due to flooding. It is another object of the present invention to provide a device and a vehicle lifting method, and a vehicle lifting device that can be stored in a vehicle in a compact state when not in use.

  In order to achieve the above object, an invention according to claim 1 is a vehicle lifting device, comprising a flexible bag which can be inflated by pressure of a sealed gas or liquid, wherein the bag is a vehicle. It has a wheel push-up for being installed under the wheel, and the wheel push-up is inflated by the pressure of the gas or liquid sealed in the bag while installed under the wheel. , Configured to push up the wheels.

  With such a configuration, the wheel push-up portion installed below the wheel expands and pushes up the wheel. However, since the wheel which is initially in a ground contact state is lifted, a conventional vehicle push-up device (air jack) is used. As compared with the case where the bottom of the vehicle body having a certain ground clearance is pushed up from the beginning, the amount of expansion required for the wheel push-up portion is small.

  According to a second aspect of the present invention, in the configuration of the first aspect, the wheel push-up portion includes an expansion suppression portion that suppresses expansion due to pressure, and a portion of the wheel push-up portion near the expansion suppression portion includes: The pressure expands to form a slope, and pushes up the wheel while the slope is in contact with the wheel.

  With this configuration, the pressure of the gas or liquid sealed in the bag body applied to the slope formed in the vicinity of the expansion suppressing portion due to the expansion of the wheel push-up portion is applied as a push-up force to the wheel contacting the slope, Push up wheels. Furthermore, by forming such a slope on both sides of the expansion suppressing portion, the pressure of gas or liquid applied to the slopes on both sides is applied to the wheel as a pushing force from two points.

  According to a third aspect of the present invention, in the configuration of the second aspect, the expansion restricting portion is configured by connecting a portion of the bag body above and below a lumen.

  With such a configuration, the expansion of the bag body including the wheel push-up portion means the expansion of the lumen, and the portion connecting the upper portion and the lower portion with respect to the lumen is a gas or liquid. Therefore, the expansion of the lumen due to the pressure is suppressed, so that this portion functions as an expansion restricting portion. The connection between the upper part and the lower part of such a bag body may be achieved by, for example, directly contacting and adhering these parts, so that the inflation limiting part can be easily constituted.

  According to a fourth aspect of the present invention, in the configuration according to the third aspect, the expansion restricting portion is constituted by a partition portion that divides the lumen into two lumen portions.

  With this configuration, the wheel push-up portion is prevented from expanding at the partition portion, but expands on both sides sandwiching the partition portion to form a valley portion having the partition portion as a bottom end. The wheel push-up portion pushes up the wheel by contacting the slope of the valley-shaped portion with the wheel.

  According to a fifth aspect of the present invention, in the configuration of the third aspect, the expansion restricting portion is formed by a peripheral portion of a through hole vertically penetrating the bag body.

  With this configuration, the wheel push-up portion is prevented from expanding at the peripheral edge, while expanding around the peripheral edge to form a funnel-shaped recess having the peripheral edge at the bottom end. The wheel push-up portion pushes up the wheel by bringing the slope of the concave portion into contact with the wheel.

  According to a sixth aspect of the present invention, in the configuration of the first aspect of the present invention, the bag body has a pair of wheel push-up portions, each of which is installed under each of a pair of left and right wheels of the vehicle. .

  With this configuration, the pressure of the gas or liquid sealed in the bag body causes the pair of wheel push-up portions to expand together, push up the pair of left and right wheels of the vehicle, and raise the vehicle without tilting the vehicle body left and right. it can.

  According to a seventh aspect of the present invention, in the configuration of the sixth aspect, the bag body has a connecting portion for connecting the pair of wheel pushing portions between the pair of wheel pushing portions.

  With this configuration, in the bag, the connecting portion is disposed below the bottom of the vehicle body between the pair of left and right wheels, and the pair of wheel push-up portions is moved left and right in accordance with the vehicle width of the vehicle. It is possible to be installed under each of a pair of wheels.

  According to an eighth aspect of the present invention, in the configuration of the seventh aspect, the pair of wheel push-up portions are connected to each other through a connecting portion so that the gas or liquid sealed in the bag body can flow through each other. .

  With this configuration, the pressure of the gas or liquid injected from any one position in the bag is applied to both wheel push-up portions substantially simultaneously and substantially evenly, and is disposed in each of the pair of wheel push-up portions. The pair of left and right wheels can be pushed up substantially simultaneously and substantially evenly.

  According to a ninth aspect of the present invention, in the configuration of the seventh or eighth aspect, the direction in which the connecting portion extends from one of the pair of wheel push-up portions to the other is the longitudinal direction of the bag body. In the lateral direction of the body, the width of the connecting portion is smaller than the width of the pair of wheel push-up portions.

  With this configuration, the inner cavity of the bag needs to have a sufficient volume at the wheel push-up portion to push up the wheel by expansion due to the pressure of the gas or liquid sealed in the bag. However, by reducing the width of the connecting portion in the lateral direction of the bag, the volume of the lumen of the entire bag is reduced.

  According to a tenth aspect of the present invention, in the configuration according to any one of the seventh to ninth aspects, the connecting portion includes an expansion suppressing portion that suppresses expansion due to pressure.

  With this configuration, the ground portion at the upper end of the connecting portion that is displaced in the vertical direction due to expansion is lower than the ground height at the vehicle body bottom portion, so that the connecting portion contacts the vehicle body bottom portion of the vehicle above it. That situation can be avoided.

  According to an eleventh aspect of the present invention, in the configuration of the tenth aspect, the expansion suppressing portion is configured by externally attaching a member for reducing the flexibility of the bag body to the connecting portion.

  With this configuration, the expansion amount of the connecting portion can be reduced to a desired amount by adjusting or selecting the shape, the material, the thickness, the size, the exterior position, and the like of the exterior member.

  According to a twelfth aspect of the present invention, in the configuration of the tenth aspect, the inflation restriction portion connects the upper portion and the lower portion of the bag body with the upper and lower portions to form two lumen portions. This is a partitioning section.

  When configured in this way, originally, in the connecting portion, the portion that is most greatly displaced in the vertical direction due to inflation (the highest) is a portion located at the center in the short direction of the bag, for example, By forming a partition in this portion of the connecting portion, on the contrary, the amount of vertical displacement of the portion is minimized. On the other hand, in the case where the partition portion is formed in this manner, in the bag body, the amount of displacement in the vertical direction due to expansion is maximized in the short-side central portion of each portion including each lumen. However, the maximum displacement is smaller than that of the central portion in the short direction of the connecting portion when no partition portion is provided.

  According to a thirteenth aspect of the present invention, in the configuration of the twelfth aspect, the partition portion extends so as to extend over the pair of wheel push-up portions.

  When configured in this manner, each wheel push-up will have a partition as an expansion suppressing portion, and each wheel push-up is suppressed from expanding at the partition, while both sides sandwiching the partition expand. Then, a trough-shaped portion having the partition portion as the bottom end is formed. The wheel can be pushed up by bringing the slope of the valley-shaped portion into contact with the wheel.

  According to a fourteenth aspect of the present invention, in the configuration according to the twelfth or thirteenth aspect, the partition has an opening through which gas or liquid can flow between the two lumens.

  With such a configuration, in order to expand both the two lumens and inflate the bag with the pressure of the gas or liquid originally sealed in the bag, each of the portions enclosing the respective lumens is required. Where it is necessary to sequentially inject gas or liquid into both inlets, since gas or liquid can flow between both lumens through the opening, the gas injected from one inlet Alternatively, a liquid can be introduced into both the lumens, and each part of the bag body containing each of the two lumens can be inflated simultaneously.

  According to a fifteenth aspect of the present invention, in the configuration according to any one of the first to fifth aspects, the bag body has four wheel pushing parts, and each of the four wheel pushing parts is: It is installed under each wheel of a four-wheeled vehicle, and the pressure of the gas or liquid sealed in the bag causes the four wheel pushing parts to expand evenly, thereby pushing up all the wheels of the four-wheeled vehicle It is configured as follows.

  With this configuration, by expanding one bag, the vehicle body of the vehicle can be raised over the entire body without tilting.

  According to a sixteenth aspect of the present invention, in the configuration according to any one of the first to fifteenth aspects, a weight member having a higher specific gravity than water or seawater is provided in the bag body.

  With this configuration, for example, in a situation where the surface of the ground is flooded with fresh water or seawater, even when the bag is inflated by enclosing a gas (air or the like) having a lower specific gravity than water or seawater, the bag can be inflated. It can maintain the condition laid on the ground without floating on the water surface.

  The invention according to claim 17 is a step of laying a bag, a step of moving the vehicle and placing a pair of left and right wheels of the vehicle on the bag, and enclosing gas or liquid in the bag and enclosing the gas. Alternatively, a step of inflating the bag body with the pressure of the liquid and pushing up the pair of left and right wheels is included.

  With this configuration, the pair of left and right wheels is pushed up, so that both the left and right portions of the vehicle body can be raised. In addition, since the bag body with the wheels mounted thereon expands and pushes up the wheels, it initially raises the wheels that are in contact with the ground, so the bottom of the vehicle body itself, which has a certain ground clearance from the beginning, is pushed up The amount of expansion required for the bag is smaller than the amount of expansion required in such a case.

  According to an eighteenth aspect of the present invention, in the configuration of the seventeenth aspect, the vehicle is a four-wheeled vehicle, and the bag is a pair. A front wheel is mounted, and a pair of right and left rear wheels of a four-wheeled vehicle is mounted on the other of the pair of bags.

  With this configuration, by using a pair of bags, all the wheels of the four-wheeled vehicle can be raised by the inflation of both the bags, and the entire body of the four-wheeled vehicle can be raised without tilting.

  According to a nineteenth aspect of the present invention, in the configuration of the seventeenth aspect, the pair of left and right wheels is placed on the bag, and at the same time, the other pair of left and right wheels of the vehicle are placed on the bag.

  With this configuration, even when the vehicle is a four-wheeled vehicle, all the wheels can be raised by inflating one bag, and the entire vehicle body can be raised without tilting.

  As described above, the invention according to claim 1 raises a wheel which is initially in a ground contact state while a wheel push-up portion installed under the wheel expands and pushes up the wheel. The amount of expansion required for the wheel push-ups is smaller than when the vehicle body push-up device (air jack) is used to push up the vehicle body bottom itself, which has a certain ground clearance from the beginning. Thus, the amount of gas or liquid sealed in the bag can be reduced, and the time required for pushing up the vehicle can be reduced. Further, since the volume of the lumen of the bag body when gas or liquid is not sealed can be almost zero, and the bag body can be folded like a sheet, the vehicle can be used when not in use. It is convenient to store it in

  The invention according to claim 2 provides, in addition to the effect of the invention according to claim 1, the pressure of the gas or liquid sealed in the bag body on the slope formed in the vicinity of the expansion suppressing portion due to the expansion of the wheel push-up portion. Is applied as a push-up force to a wheel that comes into contact with the slope, and pushes up the wheel. Furthermore, by forming such a slope on both sides of the expansion suppressing portion, the pressure of gas or liquid applied to the slopes on both sides is applied to the wheel as a pushing force from two points. Thus, the wheels can be reliably pushed up in a stable state by the pressure action of the gas or liquid sealed in the bag.

  In addition to the effect of the invention described in claim 2, the expansion of the bag body including the wheel push-up means that the inner cavity is enlarged, and the portion above the inner cavity and the lower portion are further expanded. With respect to the portion connected to the side portion, expansion of the lumen due to the pressure of gas or liquid is suppressed, and therefore, this portion functions as an expansion limiting portion. The connection between the upper part and the lower part of such a bag body may be achieved, for example, by directly abutting and bonding these parts to each other, so that the inflation limiting part can be easily formed and cost reduction can be achieved. Can be.

  The invention according to claim 4 is characterized in that, in addition to the effect of the invention according to claim 3, while the expansion of the wheel push-up portion is suppressed at the partition portion, both side portions sandwiching the partition portion expand to form the partition portion. A valley-shaped portion serving as a bottom end is formed. The wheel push-up portion pushes up the wheel by contacting the slope of the valley-shaped portion with the wheel. In this way, only by providing a simple structure called a partition, the inflating action of the wheel push-up portion of the bag by the pressure of the enclosed gas or liquid causes the valley-shaped portion that can surely push up the wheel in a stable state. Since it works to form, the cost can be reduced.

  According to the fifth aspect of the present invention, in addition to the effect of the third aspect, the wheel push-up portion is prevented from expanding at the peripheral edge portion, while the peripheral portion of the peripheral edge portion is expanded, and the peripheral edge portion is inflated. A funnel-shaped recess is formed as an end. The wheel push-up portion pushes up the wheel by bringing the slope of the concave portion into contact with the wheel. In this manner, simply by providing the simple structure of the through hole and the peripheral edge thereof, the inflating action of the wheel push-up portion of the bag by the pressure of the enclosed gas or liquid can surely push up the wheel in a stable state. Since it works so as to form a funnel-shaped concave portion, cost can be reduced.

  According to a sixth aspect of the present invention, in addition to the effect of the first aspect of the invention, the pressure of the gas or liquid sealed in the bag causes the pair of wheel pushing portions to expand together, thereby pushing up the pair of left and right wheels of the vehicle. Thus, the vehicle can be raised without tilting the vehicle body left and right. Therefore, it is possible to eliminate a situation in which one of the left and right portions of the vehicle body is not raised and is damaged by flooding when the ground surface is flooded.

  According to the seventh aspect of the present invention, in addition to the effect of the sixth aspect, the connecting portion is disposed below the bottom of the vehicle body between the pair of left and right wheels in the bag, and the vehicle has According to the vehicle width, a pair of wheel push-up portions can be installed under each of a pair of left and right wheels. That is, a pair of left and right wheels can be pushed up by one bag, so that the work of laying the bag can be reduced and the work of injecting gas or liquid into the bag can be facilitated.

  The invention according to claim 8 provides, in addition to the effect of the invention according to claim 7, the pressure of the gas or liquid injected from any one position in the bag is substantially simultaneously and substantially evenly applied to both wheel push-up portions. The pair of left and right wheels arranged on each of the pair of wheel push-ups can be pushed up almost simultaneously and substantially evenly, so that the work of injecting gas or liquid for inflating the bag body is facilitated and the The time required can be reduced.

  According to the ninth aspect of the present invention, in addition to the effect of the seventh or eighth aspect, the inner space of the bag body is inflated by the pressure of gas or liquid sealed in the bag body at each wheel push-up portion. Although it is necessary to have a sufficient volume to push up the wheel with the above, by reducing the width of the connecting portion in the short direction of the bag, the volume of the lumen of the entire bag is reduced. Therefore, the time required for filling the gas or liquid for expanding the bag can be reduced.

  According to a tenth aspect of the present invention, in addition to the effect of any one of the seventh to ninth aspects, the ground clearance at the upper end of the connecting portion which is vertically displaced by expansion is the ground clearance at the bottom of the vehicle body of the vehicle. By making the connecting portion lower, it is possible to avoid a situation where the connecting portion comes into contact with the vehicle body bottom portion of the vehicle above the connecting portion. As a result, it is possible to avoid problems of parts mounted on the vehicle body bottom and the bag itself, which may be caused by such contact.

  According to an eleventh aspect of the present invention, in addition to the effects of the tenth aspect of the present invention, the shape, material, thickness, size, exterior position, and the like of a member to be exteriorized are adjusted or selected so that the connection portion The amount of expansion can be reduced to a desired amount. For example, by attaching a tubular, belt-shaped, or tape-shaped member made of the same material as the bag body to the connecting portion, the portion becomes in the same state as the case where the thickness of the bag body is increased, and flexibility is increased. This reduces the amount of vertical displacement due to the expansion of the bag body, thereby avoiding contact between the connecting portion and the vehicle body bottom.

  According to the twelfth aspect of the present invention, in addition to the effect of the tenth aspect of the present invention, the portion of the connecting portion that is most greatly displaced (highest) in the vertical direction due to the expansion is originally formed of the bag. Where the portion is located at the center in the lateral direction, for example, by forming a partition portion in this portion of the connection portion, conversely, the amount of vertical displacement of the portion is minimized. On the other hand, in the case where the partition portion is formed in this manner, in the bag body, the amount of displacement in the vertical direction due to expansion is maximized in the short-side central portion of each portion including each lumen. However, the maximum displacement is smaller than that of the central portion in the short direction of the connecting portion when no partition portion is provided. In particular, when the structure of the partition portion is combined with the structure in which the width of the connecting portion is smaller than the width of the pair of wheel push-up portions in the short direction of the bag body as described in claim 9, the maximum displacement amount is obtained. Will be even smaller. As a result, contact between the vehicle body bottom and the connecting portion is more reliably avoided, and the volume of both the lumens of the connecting portion at the time of inflation of the bag is reduced, so that the bag is inflated. The time required for gas or liquid encapsulation can be reduced.

  According to the invention of claim 13, in addition to the effect of the invention of claim 12, each wheel push-up has a partition portion as an expansion suppressing portion, and each wheel push-up is suppressed from expanding at the partition. On the other hand, both side portions sandwiching the partition portion expand to form a valley-shaped portion having the partition portion as a bottom end. The wheel can be pushed up by bringing the slope of the valley-shaped portion into contact with the wheel. In this way, a simple structure in which the partition formed by the connecting portion is simply extended to the push-up portions of both wheels, and a structure in which the wheels are reliably pushed up by the inflating action of the bag body in the push-up portions of both wheels. And cost reduction can be achieved.

  According to the invention of claim 14, in addition to the effect of the invention of claim 12 or claim 13, both of the two lumens are originally expanded by the pressure of the gas or liquid sealed in the bag. In order to inflate the bag body, it is necessary to provide an inlet for each of the portions enclosing the respective lumens, and to sequentially inject gas or liquid into both the inlets. Since gas or liquid can flow between them, the gas or liquid injected from one inlet can be introduced into both lumens, and each part of the bag body containing both lumens is inflated simultaneously. be able to. Thus, the operation of injecting gas or liquid for inflating the bag can be facilitated and the time can be reduced.

  According to a fifteenth aspect of the present invention, in addition to the effect of the first aspect of the present invention, by expanding one bag, the body of the vehicle is raised over the entire body without tilting. Can be done. For this reason, it is possible to protect all parts of the vehicle body from inundation damage in a flooded state on the ground surface, and this is realized by inflation of one bag body. It can be.

  The invention according to claim 16 has, in addition to the effects of the invention according to any one of claims 1 to 15, a specific gravity smaller than that of water or seawater, for example, in a situation where the ground surface is flooded with freshwater or seawater. Even when gas (air or the like) is sealed and the bag is inflated, it is possible to keep the bag laid on the ground without floating the bag on the water surface. For this reason, the stability of the laid bag can be enhanced.

  According to the seventeenth aspect, since the pair of left and right wheels is pushed up, both the left and right portions of the vehicle body can be raised. In addition, since the bag body with the wheels mounted thereon expands and pushes up the wheels, it initially raises the wheels that are in contact with the ground, so the bottom of the vehicle body itself, which has a certain ground clearance from the beginning, is pushed up The amount of expansion required for the bag is smaller than the amount of expansion required in such a case. Therefore, both the left and right portions of the bottom of the vehicle body can be efficiently and quickly prevented from being flooded in a short time.

  According to the eighteenth aspect of the present invention, in addition to the effect of the seventeenth aspect, by using a pair of bags, all wheels of the four-wheeled vehicle can be raised by inflation of both bags, and The entire body of the vehicle can be raised without tilting. Accordingly, the entire bottom of the vehicle body can be efficiently and quickly protected from flood damage in a short time. In addition, each bag itself has a simple configuration, and cost can be reduced.

  According to the nineteenth aspect of the invention, in addition to the effects of the seventeenth aspect, even when the vehicle is a four-wheeled vehicle, all the wheels can be raised by inflating one bag, and the vehicle The entire vehicle body can be raised without tilting. As described above, since there is only one bag to be laid and to be inflated by the pressure of the enclosed gas or liquid, the entire vehicle body can be efficiently and quickly protected from flood damage in a short time.

1 is a plan view of a vehicle lifting device according to a first embodiment of the present invention. It is a side view which shows the state which pushed up the vehicle by the vehicle lifting device of FIG. It is a front view which shows the state which pushed up the vehicle by the vehicle lifting device of FIG. FIG. 2 is a cross-sectional view taken along line AA of the bag body of FIG. 1 showing a state in which the vehicle is pushed up. It is a figure which shows the procedure of the vehicle push-up using the vehicle push-up apparatus of FIG. 1, (a) is a figure in which the bag body is laid on the ground surface, (b) is mounting the wheel of the vehicle on the bag body. FIG. 3C is a diagram illustrating a state where a part of the bag is inflated. FIG. 2 is a sectional view taken along line AA of the bag body of FIG. 1 in a state where leg materials are attached. It is a figure which shows the bag body provided with the strip | belt of another structure, (a) is a top view, (b) is BB arrow sectional drawing in (a). It is a figure which shows the bag body which has the partition part of another structure, (a) is a side sectional view, (b) is a perspective sectional view. FIG. 6 is a plan view of a vehicle lifting device according to a second embodiment of the present invention. FIG. 10 is a side view showing a state where the vehicle is pushed up by the vehicle pushing-up device of FIG. 9. FIG. 10 is a front view showing a state where the vehicle is lifted by the vehicle lifting device of FIG. 9. FIG. 10 is a cross-sectional view of the bag of FIG. 9 taken along line CC, showing a state in which the vehicle is pushed up. FIG. 10 is a cross-sectional view taken along line DD of the bag body of FIG. 9. FIG. 13 is a plan view of a vehicle lifting device according to a third embodiment of the present invention. It is a front view which shows the state which pushed up the vehicle by the vehicle lifting device of FIG. FIG. 13 is a plan view of a vehicle lifting device according to a fourth embodiment of the present invention. It is a figure which shows the bag body structure used for the vehicle lifting device by 5th Embodiment of this invention, (a) is a top view, (b) is the GG line arrow in (a). It is sectional drawing.

  A vehicle lifting device 10 according to a first embodiment of the present invention will be described.

  FIG. 1 is a plan view of a vehicle lifting device according to a first embodiment of the present invention, FIG. 2 is a side view showing a state in which the vehicle is raised by the vehicle lifting device of FIG. 1, and FIG. FIG. 4 is a front view showing a state where the vehicle is pushed up by the vehicle pushing-up device of FIG. 1, and FIG. 4 is a cross-sectional view of the bag body of FIG.

  Referring to these drawings, vehicle lifting device 10 includes a pair of bags 20, 20R, an air compressor 11, an air hose 12, and the like.

  When the vehicle 1 is pushed up (jacked up) by the vehicle lifting device 10, the bags 20 and 20R are laid on the ground surface (road surface) E, and a pair of left and right wheels (this embodiment Then, the front wheels 3 and 3a are placed on the bag 20 and the other pair of left and right wheels (rear wheels in this embodiment) 4 and 4a are placed on the bag 20R.

  In the specification of the present application, "wheel" includes a tire mounted on a rim.

  In this state, gas is sealed in the bags 20, 20R using the air compressor 11 and the air hose 12, the bags 20, 20R are inflated, and all the wheels 3, 3a of the vehicle 1 mounted on the bags 20, 20R. The vehicle 1 is raised without tilting the vehicle body 2 by lifting the vehicle bodies 4, 4, and 4a above the ground surface E. Thereby, the relative height of the entire vehicle body 2 with respect to the flooded surface L on the ground surface E is increased, thereby avoiding flood damage.

  On the other hand, when the vehicle push-up device 10 is not used, for example, all parts of the vehicle push-up device 10 are stored in one container (container), are set as one set, and are stored in a trunk or the like of the vehicle 1. be able to.

  Here, each of the bags 20, 20R can be deflated until the state of a two-layered cloth is achieved by removing the gas that has been sealed therein, thereby reducing the volume of the lumen to zero. Therefore, the deflated bags 20, 20R can be stored in a compact state by folding, for example, as described above.

  The bag 20 and the bag 20R have the same structure. In this embodiment, for convenience, the bag 20 for pushing up the wheels 3, 3a is used as the bag 20, and the bag 20R is used for pushing up the wheels 4, 4a. And Hereinafter, the bag body 20 will be described as a representative of both the bag bodies 20 and 20R.

  The bag body 20 is formed in a substantially rectangular shape in a plan view. When used for jacking up the vehicle 1, the long side direction (that is, the longitudinal direction) is aligned with the left and right direction of the vehicle 1, and the short side direction ( That is, it is assumed that the vehicle is laid on the ground surface E in such a manner that its short side direction is aligned with the front-back direction of the vehicle 1.

  In the following description of the bag 20, assuming that the bag 20 is laid on the ground surface E, the long side direction (longitudinal direction) of the bag 20 which is substantially rectangular in a plan view is defined as the left-right direction, and the short side direction (short side). Hand direction) is the front and rear direction. The same applies to other embodiments described later.

  The bag body 20 is made of a flexible cloth, and this cloth is folded in two or the like to form an upper and lower two-layered state, and the front, rear, left and right ends of the four sides of the above-described substantially rectangular shape in plan view are closed. It has become something. That is, the bag body 20 has a lumen 23 isolated from the outside between the upper cloth part and the lower cloth part, and seals the gas injected from the outside into the lumen 23. This makes it inflatable.

  Hereinafter, the cloth portion of the bag body 20 above the lumen 23 is referred to as an upper cloth portion, and the cloth portion of the bag body 20 below the lumen 23 is referred to as a lower cloth portion.

  For the cloth as a material of the bag body 20, for example, a rubberized cloth is used. The rubber-coated cloth is formed by covering one or both sides of a woven cloth with rubber, and has flexibility by rubber, while suppressing elongation in the surface direction by the woven cloth. That is, it has appropriate flexibility to function as the vehicle lifting device 10. A typical woven fabric in a rubberized fabric may be a nylon fiber woven fabric.

  The bag body 20 has portions having a certain length in the left-right direction from the left and right ends thereof as wheel pushing portions 21 and 21a, respectively, and a portion between the left and right wheel pushing portions 21 and 21a as a connecting portion 22.

  However, the bag body 20 in this embodiment has a substantially rectangular shape in plan view as described above, and has a substantially uniform front and rear width and a vertical width throughout the left-right direction, and is connected to the wheel push-up portions 21 and 21a. The structure has no clear boundary with the part 22.

  The bag body 20 forms a partitioning portion 20a extending in the left-right direction by bonding the upper cloth portion and the lower cloth portion at the center in the front-rear direction. The partition 20a divides the lumen 23 of the bag 20 into a front lumen 23f and a rear lumen 23r. The front half of the bag 20 that includes the front lumen 23f is referred to as a front bag 20f, and the rear half of the bag 20 that includes the rear lumen 23r is referred to as a rear bag 20r.

  The filling of the gas causes the front lumen 23f and the rear lumen 23r to expand, thereby increasing their vertical width, while the partition 20a itself does not expand and its vertical width does not change. As a result, a V-shaped valley portion in a side view (hereinafter referred to as a “V-shaped valley portion”) is formed between the left and right ends of the bag body 20 in the front-rear middle portion of the inflated bag body 20 in the left-right direction. It is formed. The V-shaped valleys in the left and right wheel push-up portions 21 and 21a act to push up and support the wheels 3 and 3a of the vehicle 1.

  Here, with reference to FIG. 4, a description will be given of a state in which both the bag portions 20 f and 20 r of the bag body 20 are inflated by the pressure of the enclosed gas to push up the wheel 3 placed on the wheel push-up portion 21.

  Each of the bags 20f, 20r is expanded and displaced in the vertical direction by the pressure of the gas sealed in each of the lumens 23f, 23r, that is, has a large vertical width, and has a rugby ball shape in a side view. That is, the front and rear central portions of each of the bag portions 20f and 20r are portions where the vertical width becomes the largest due to the expansion, and the vertical width decreases toward the front end and the rear end. The partition part 20a between the front bag part 20f and the rear bag part 20r is a part where the vertical width does not change (does not displace in the vertical direction) due to expansion, that is, a part where expansion is suppressed.

  In this manner, a V-shaped valley portion having the partitioning portion 20a as the expansion suppressing portion at the deepest bottom end is formed in the front and rear middle portion of the bag body 20 in which both the bag portions 20f and 20r are filled with the gas. The wheel 3 is pushed up and supported.

  More specifically, in a state where the lowermost end 3b of the wheel 3 is disposed immediately above the partition 20a, the inflated front bag portion 20f extends forward and upward from the rear end (partition 20a) toward the upper end of the front-rear intermediate portion. The inclined surface abuts on the front lower portion 3f of the wheel 3 in front of the lowermost end 3b as the front slope 20b of the V-shaped valley portion of the bag body 20. On the other hand, the surface of the inflated rear bag portion 20r that inclines rearward and upward from the front end (partition portion 20a) toward the upper end of the front-rear intermediate portion is the rear slope 20c of the V-shaped valley portion of the bag body 20 and is the largest. It contacts the rear lower part 3r of the wheel 3 behind the lower end 3b.

  In this way, the pressure of the gas sealed in the bag body 20 applies a rear upward push-up force Ff to the front lower portion 3f of the wheel 3 on the front slope 20b of the V-shaped valley portion of the inflated bag body 20, In addition, a front-upward pushing force Fr is applied to the rear lower portion 3r of the wheel 3 on the rear slope 20c, so that the wheel 3 is raised until the lowermost end 3b rises above the partition portion 20a.

  Further, in the state of being lifted in this manner, the wheels 3 are prevented from moving forward from the front slope 20b of the bag body 20 and from the rear slope 20c from the rear slope 20c of the bag body 20. Of the bag body 20 is held at the V-shaped valley portion of the wheel push-up portion 21 of the bag body 20 in a stable state.

  Further, since the V-shaped valley portion of the bag body 20 is also formed on the wheel push-up portion 21a as described above, the wheel 3a on the wheel push-up portion 21a is also pushed up similarly to the wheel 3 on the wheel push-up portion 21. Acting and supporting. Thereby, as shown in FIG. 3, the left and right wheels 3, 3a are evenly raised, and the vehicle body 2 is raised without leaning left and right.

  Of the left and right wheel pushing parts 21 and 21a, one of the wheel pushing parts 21 is provided with the above-described inlets 24 and 25 arranged in a line in front and rear. The length of the bag body 20 in the left-right direction (longitudinal direction) is such that the gas (or liquid) is supplied to the inlets 24, 25 when the left and right wheels 3, 3a are placed on the left and right wheel push-up parts 21, 21a. In order not to hinder the injection work, the portion provided with the injection ports 24 and 25 has an appropriate length to sufficiently extend outward in the left-right direction from the wheel 3 placed on the wheel push-up portion 21. I have.

  Further, the width of the bag body 20 in the front-rear direction (transverse direction) is formed by expanding the bag body 20 by the pressure of the enclosed gas in a state where the lowermost end 3b of the wheel 3 is arranged on the partition part 20a. At the above-mentioned V-shaped valley portion, the width is appropriate for exerting a sufficient lifting action and supporting action on the wheels 3, 3a.

  At an appropriate position in the left-right direction (longitudinal direction) of the bag 20 (in this embodiment, the wheel push-up portions 21 and 21a and the connecting portion 22), along the entire outer periphery of the bag 20 in the front-rear direction, that is, The strips 26, 26a, 26b are wound around the entire peripheral surfaces of the front bag portion 20f, the partition portion 20a, and the rear bag portion 20r in the front-rear direction, and are adhered to the surface of the bag body 20. The strips 26, 26a, 26b are made of, for example, a rubberized cloth which is the same material as the cloth of the bag 20.

  Wrapping the band bodies 26, 26a, 26b around the bag body 20 functions similarly to thickening the cloth of the bag body 20. That is, the portion of the bag body 20 around which the belt bodies 26, 26a, 26a are wound is in the same state as the thick portion, and is a portion having reduced flexibility. By forming such a portion at an appropriate position in the left-right direction of the bag body 20, expansion of the bag body 20 is suppressed, and the possibility that the bag body 20 comes into contact with the bottom of the vehicle body 2 is reduced.

  Here, in particular, the connecting portion 22 which is the left and right intermediate portion of the bag body 20 is a portion disposed below the bottom of the vehicle body 2 in the left and right middle of the vehicle 1. The front bag portion 20f and the rear bag portion 20r in the connecting portion 22 expand and increase the vertical width, so that the front middle portion of the front bag portion 20f and the front middle portion of the rear bag portion 20r become high. As a result, there is a possibility that the parts or the like disposed on the bottom of the vehicle body 2 or the bag body 20 itself may be in trouble by coming into contact with the bottom of the vehicle body 2. Therefore, the degree of expansion of the bag body 20 is reduced by winding the band bodies 26, 26a, and 26b, thereby reducing the possibility of contact between the bag body 20 and the bottom of the vehicle body 2.

  Further, tapes 27, 27a, 27b, and 27c having the same expansion suppressing function as the belts 26, 26a, and 26b are attached and bonded to the left end and the right end of the bag 20, respectively.

  Further, a partition portion 20a is formed at the center of the connecting portion 22 in the front-rear direction, and extends in the left-right direction so as to reach the wheel push-up portions 21, 21a. As described above, the partition portion 20a functions as an expansion suppressing portion that suppresses vertical expansion when the bag body 20 is expanded, and forms a V-shaped valley portion having the partition portion 20a as a bottom end. As described above, in each wheel push-up portion 21, 21a, the V-shaped valley portion serves as a push-up action portion of the wheels 3, 3a.

  On the other hand, the connecting portion 22 functions so that the height of the upper end thereof is reduced and the contact with the bottom of the vehicle body 2 can be avoided by suppressing the amount of vertical displacement by the partitioning portion 20a. That is, if there is no partition portion 20a, the amount of vertical displacement when the bag body 20 is inflated is maximum at the front and rear central portions of the connecting portion 22, the amount of displacement is very large, and the upper end of the connecting portion 22 is extremely high. Will be higher. By forming a partitioning portion 20a as an expansion suppressing portion in the front and rear central portion, the vertical displacement at this portion is suppressed, and the vertical displacement at the connecting portion 22 is maximized in each bag. Each of the portions 20f and 20r is an intermediate portion in the front-rear direction, and the amount of displacement is smaller than the amount of vertical displacement of the central portion in the front-rear direction of the connecting portion 22 without the partition portion 20a. Thus, as described above, the height of the upper end of the connecting portion 22 at the time of inflation is reduced to function to avoid contact with the bottom of the vehicle body 2.

  1 to 3, the bag 20R has the same structure as the bag 20 as described above, and includes a partition 20a, a front bag 20f, and a rear bag 20 of the bag 20. 20r, left and right wheel push-up portions 21 and 21a, connecting portion 22 and partition portion 20Ra, front bag portion 20Rf, rear bag portion 20Rr, left and right wheel push-up portions 21R and 21Ra, connecting portion 22R similar to inlets 24 and 25. , Injection ports 24R and 25R.

  Next, a method of pushing up the vehicle 1 using the vehicle push-up device 10 will be described.

  5A and 5B are diagrams showing a procedure for pushing up a vehicle using the vehicle pushing-up device of FIG. 1, wherein FIG. 5A is a view in which a bag is laid on the ground surface, and FIG. (C) is a view in which a part of the bag is inflated.

  FIG. 2 described above shows a state in which the inflation of all the bags has been completed after FIG. 5C.

  With reference to FIG. 5A, while the vehicle 1 is stopped, the bag 20 in the initial state (unfilled gas state) is spread with its longitudinal direction aligned with the left-right direction of the vehicle 1. It is laid on the ground immediately before or immediately after the pair of left and right wheels 3, 3a. The bag 20R is also placed in the same state, and is laid on the ground immediately before or immediately after the pair of left and right wheels 4, 4a of the vehicle 1.

  In the embodiment shown in FIG. 5, the wheels 3 and 3a are front wheels of the vehicle 1, and the wheels 4 and 4a are rear wheels of the vehicle 1. Immediately before the wheels 3, 3a, the bag 20R is disposed immediately before the wheels 4, 4a.

  At this time, if the wheels 3, 3a are put on the bag 20 later, the wheels 4, 4a are naturally put on the bag 20R. It is preferable that the interval in the front-rear direction is equal to the interval in the front-rear direction between the wheels 4, 4a and the bag 20R.

  Also, at this time, the inlets 24 and 25 of the bag 20 and the inlets 24R and 25R of the bag 20R are arranged on the same left and right sides of the vehicle 1 so as to be convenient for gas filling work later. Is preferred. With reference to FIGS. 1 and 2, in this embodiment, all of the inlets 24 and 25 of the bag 20 and the inlets 24R and 25R of the bag 20R are viewed from the person sitting in the driver's seat in the vehicle. 1 to the left.

  After laying the bags 20 and 20R in the initial state on the ground in this way, the vehicle 1 is moved (forward in this embodiment) to move the left and right wheels 3 and 3a to the left and right wheel push-up portions 21 of the bag 20. 21A, the left and right wheels 4, 4a are placed on the wheel push-up portions 21R, 21Ra of the bag 20R. Referring to FIG. 5 (b), the lowermost ends 3b of the wheels 3, 3a are arranged on the partition 20a of the bag 20, and at the same time, the lowermost 4b of the wheels 4, 4a are arranged on the partition 20Ra of the bag 20R. When the vehicle 1 is arranged, the vehicle 1 is stopped.

  Thereafter, the gas outlet of the air compressor 11 is connected to one of the inlets 24, 25, 24R, 25R of the bags 20, 20R via the air hose 12, and the electric cord 11a of the air compressor 11 is connected to the vehicle. The air compressor 11 is driven by connecting to a power socket (not shown) in the vehicle. Thus, by filling the cavity of the bag portion having the corresponding inlet with the gas discharged from the gas discharge port of the air compressor 11, the bag portion is inflated. Thereby, the portions corresponding to the left and right wheel push-up portions in the bag portion expand at the same time.

  For example, referring to FIG. 5C, first, when the gas discharge port of the air compressor 11 is connected to the injection port 24, the gas discharged from the air compressor 11 is included in the front bag portion 20 f of the bag body 20. The front lumen portion 23f is filled, and the front bag portion 20f expands.

  Since the front lumen portion 23f is continuous from one left and right end of the front bag portion 20f to the other left and right end, the gas injected into the front bag portion 20f from the inlet 24 is near the inlet 24. Not only the portion corresponding to the wheel push-up portion 21 but also the portion corresponding to the wheel push-up portion 21a on the right and left opposite sides to the wheel push-up portion 21 is filled through the portion corresponding to the connecting portion 22.

  In this way, the gas injected into the front lumen 23f from the inlet 24 provided on one of the left and right sides of the front bag 20f expands to the entire front lumen 23f, and the pressure is applied to the entire front bag 20f. Since it takes evenly, the left and right wheel push-up portions 21 and 21a expand evenly (see FIG. 3).

  Thereafter, the air hose 12 is replaced, and the injection ports 24, 25, 24R, and 25R are sequentially connected to the gas discharge ports of the air compressor 11, and all the bag portions 20f, 20r, 20Rf, and 20Rr of the bag bodies 20 and 20R are connected. Enclose gas in the lumen.

  Referring to FIG. 2, when the gas filling of all the bag portions 20f, 20r, 20Rf, 20Rr is completed, the V-shaped valley portions are formed in both the bag members 20, 20R as described above, and all the wheels 3, 3a, 4 , 4a are pushed up to a substantially uniform height from the ground surface, and the vehicle body 2 is not tilted, that is, all parts of the vehicle body 2 are raised at a uniform height.

  Next, several embodiments to which the bag body 20 is applied will be described.

  FIG. 6 is a cross-sectional view taken along line AA of the bag body of FIG. 1 in a state where leg materials are attached.

  Referring to the drawing, it is preferable to attach leg members 28 and 28a to the lower cloth portion of front bag portion 20f and rear bag portion 20r of bag body 20. Thus, even when the front bag portion 20f and the rear bag portion 20r are inflated, the bag body 20 laid on the ground surface E is considered to be stable, and the vehicle 1 pushed up by the bag body 20 is considered to be stable.

  As the configuration of the leg members 28 and 28a and the mode of attachment to the bag body 20, for example, the leg members 28 and 28a made of rubber material are vulcanized and bonded to the surface of the lower cloth portion of the bag body 20 made of rubber cloth. It is possible.

  The legs 28, 28a are made of a material having a specific gravity higher than that of water or seawater, and the bag body 20 laid on the ground surface E is inflated by the pressure of gas having a specific gravity lower than that of water or seawater. However, it also functions as a weight material that prevents floating on the water (flood surface L).

  7A and 7B are diagrams showing a bag body provided with a band body having another structure, wherein FIG. 7A is a plan view, and FIG. 7B is a cross-sectional view taken along line BB in FIG.

  Referring to the figure, the partition 20Xa of the bag 20X is configured by directly contacting and bonding the upper cloth portion and the lower cloth portion of the bag 20X, like the partition portion 20a of the bag 20. However, as a point different from the partition part 20a, eyelets-shaped through holes 29, 29a, and 29b are formed at appropriate positions in the left-right direction of the bag body 20X.

  The strips 26, 26a, 26b wound around the bag 20X are not adhered to the bag 20X, but are respectively twisted in the shape of figure 8 and inserted into the through holes 29, 29a, 29b to form the front bag. Part 20f and the back bag part 20r.

  As described above, since the strips 26, 26a, and 26b as the exterior members for suppressing expansion are not bonded to the bag 20X, the steps of winding these can be simplified. In order to adjust the degree of expansion, any one of the strips 26, 26a, and 26b can be appropriately removed.

  In the bag 20X to which the bands 26, 26a, 26b are not bonded as described above, the torsional intersection of the bands 26, 26a, 26b interposed between the front and rear bag portions 20f, 20r functions as an expansion suppressing portion. Therefore, a V-shaped valley portion having a shape capable of stably pushing up the left and right wheels as shown in FIG. 4 can be formed.

  FIGS. 8A and 8B are views showing a bag having a partition having another structure, wherein FIG. 8A is a side sectional view, and FIG. 8B is a perspective sectional view.

  Referring to the figure, bag 20Y has a partition 20Ya having a structure different from that of partition 20a of bag 20. That is, the partitioning portion 20a directly abuts and adheres the upper cloth portion and the lower cloth portion of the bag body 20, whereas the partitioning portion 20Ya connects the lumen 23 with the front lumen portion 23f and the rear inner portion. It has a partition wall 20w for partitioning into the cavity 23r, and the upper cloth part and the lower cloth part of the bag 20Y are connected via the partition wall 20w.

  The partition wall 20w is made of a flexible cloth or the like. In an initial state in which the gas is not filled in both the lumen portions 23f and 23r, the partition wall 20w is in a lying state, and the partition portion 20Ya has almost no vertical width due to the partition wall 20w. When the front bag portion 20f and the rear bag portion 20r are inflated by gas filling both the lumen portions 23f and 23r, the upper and lower ends of the partition wall 20w are pulled up and down, whereby the partition wall 20w is stretched in a vertical wall shape. Becomes At this time, the partition part 20Ya has a vertical width of the vertical wall-shaped partition wall 20w.

  That is, the partition portion 20Ya of the bag body 20Y is not a part that does not expand at all (does not displace in the vertical direction), but expands (displaces in the vertical direction), but expansion is suppressed by the vertical width of the partition wall 20w. Part. Thereby, it is considered that the slope of the V-shaped valley formed in the bag body 20Ya is loosened, and the deepest bottom end of the V-shaped valley formed by the partition portion 20Ya is made shallow. If it is desirable in design to form such a shallow V-shaped valley portion, it is preferable to employ the bag body 20Y.

  Further, referring to FIG. 8B, the partition wall 20w may have a cutout or the like as the ventilation port 20v. By having a structure in which gas can be communicated between the front lumen portion 23f and the rear lumen portion 23r through the ventilation port 20v, the gas is injected into only one of the injection ports 24 and 25 so that the two It is possible to adopt a structure in which gas is filled in the lumens 23f and 23r.

  Thereby, in addition to the effect of facilitating the work of replacing the air hose 12 between the inlets 24 and 25, the front bag portion 20f and the rear bag portion 20r are not inflated sequentially but are simultaneously inflated. Because of the expansion, the V-shaped valley portion is formed in the shape of the V-shaped valley from the beginning of the expansion, and the effect that the wheels 3, 3a can be pushed up in a stable state can be obtained.

  The partition wall 20w having the ventilation port 20v is not limited to the cloth-like body, and may have any configuration. For example, the partition wall 20w is a linear body such as a nylon cord or the like, and a plurality of linear bodies are interposed at predetermined intervals between the upper cloth part and the lower cloth part of the bag 20X. It is conceivable that the interval between the shaped bodies is set as the ventilation port 20v.

  Further, the partition wall 20w may be formed of a rigid member having no flexibility, and may have a constant vertical width that is the same in both the initial state and the inflated state of the bag body 20Y (ie, does not displace in the vertical direction). Conceivable.

  Next, a vehicle lifting device 10A according to a second embodiment of the present invention will be described.

  FIG. 9 is a plan view of a vehicle lifting device according to a second embodiment of the present invention, FIG. 10 is a side view showing a state in which the vehicle is raised by the vehicle lifting device of FIG. 9, and FIG. FIG. 12 is a front view showing a state where the vehicle is pushed up by the vehicle pushing-up device of FIG. 9, and FIG. 12 is a cross-sectional view taken along line CC of the bag shown in FIG. 13 is a cross-sectional view of the bag body of FIG. 9 taken along line DD.

  Referring to these drawings, vehicle lifting device 10A is the same as vehicle lifting device 10 shown in FIG. 1 and the like, except that it includes bags 30, 30R instead of bags 20, 20R.

  Like the bag body 20 and the bag body 20R, the bag bodies 30 and 30R have the same structure, and in this embodiment, the bag body 30 and the wheels 4 and 4a are used to push up the wheels 3 and 3a. The bag for pushing up is a bag 30R. Hereinafter, the bag body 30 will be described as a representative of both the bag bodies 30 and 30R.

  The bag body 30 has left and right wheel push portions 31, 31a and a connecting portion 32 disposed between the left and right wheel push portions 31, 31a.

  The bag body 30 according to this embodiment is also configured such that two upper and lower fabrics made of rubber-coated cloth or the like are overlapped with each other and the ends thereof are closed, and includes the lumen 33 isolated from the outside. ing. Since the bag body 30 does not have a portion corresponding to the above-described partitioning portion 20a, the lumen 33 is not divided into front and rear portions, and the entire bag body 30 (from the one wheel push-up portion 31 via the connecting portion 32). (Up to the other wheel push-up portion 31a).

  For this reason, the bag 30 has only one inlet 34 for injecting gas into the inner cavity 33, and the inlet 34 is provided near the left end or the right end of the bag 30. In this embodiment, an injection port 34 is provided in the wheel push-up portion 31 on one of the left and right sides.

  When gas is injected into the lumen 33 from the injection port 34, the gas is diffused throughout the lumen 33, and the pressure is evenly applied to the entire portion of the bag 30 to inflate the bag 30.

  As described above, since the entire bag body 30 is inflated by the pressure of the gas injected from one injection port 34, it is not necessary to replace the air hose 12 on the way, and the burden of the gas sealing operation is reduced.

  Tapes 36 and 36a for reducing the degree of expansion are attached and bonded to the left and right outer ends of the wheel push-up portions 31 and 31a.

  At the center of the wheel push-up portion 31 of the bag body 30, a circular through hole 35 in a plan view is provided. The peripheral portion 30a of the bag 30 surrounding the through hole 35 is formed by bonding upper and lower cloth portions of the bag 30 like the partition portion 20a of the bag 20. That is, the through-hole 35 has an eyelet-hole shape, and the circular peripheral portion 30a has a structure like an eyelet, and functions as an expansion suppressing portion that suppresses vertical expansion even when the bag body 30 is expanded. .

  The bag body 30 expands due to the pressure of the gas filled in the inner cavity 33 except for the peripheral edge portion 30a in the wheel push-up portion 31 to increase the vertical width (displace in the vertical direction), while the peripheral edge portion 30a It does not expand, and the vertical width does not change (does not move vertically). Accordingly, in the wheel push-up portion 31, a funnel-shaped concave portion 30b having the peripheral edge 30a as a bottom end is formed around the peripheral edge 30a.

  A through hole 35a and a peripheral edge 30c similar to the through hole 35 and the peripheral edge 30a are also formed in the center of the wheel push-up portion 31a of the bag body 30. During filling of the gas into the lumen 33, the inflation of the bag body 30 is suppressed at the peripheral edge 30c, so that a funnel-like shape having the peripheral edge 30c as the bottom end is formed around the peripheral edge 30c in the wheel push-up portion 31a. A recess 30d is formed.

  Further, the wheel push-up portions 31 and 31a are narrowed in a trapezoidal shape in a plan view from the outer end to the inner end in the left-right direction. The front-rear width of the connecting portion 32 formed between the inner ends of the wheel push-up portions 31, 31a is equal to the front-rear width of the inner ends of both the wheel push-up portions 31, 31a, and therefore, for mounting the wheels 3, 3a. Are smaller than the front-rear width of the center of the wheel push-up portions 31 and 31a, which are the main portions of the upper portion. As a result, the volume of the entire lumen 33 is reduced, and the time required for gas filling is reduced.

  However, in order to secure the diameter of the through-holes 35, 35a, a certain front-to-rear width is required in each of the wheel push-up portions 31, 31a. Angle is limited. As a result, the connecting portion 32 formed in a tubular shape at the left and right intermediate portion of the bag body 30 also has a certain front and rear width, and accordingly, the front and rear middle portion of the connecting portion 32 when the bag body 30 is inflated. The upper and lower widths are considerably large, and the position of the upper end is considerably high. Therefore, it is necessary to consider the possibility of contact with the bottom of the vehicle body 2 as in the case of the connecting portion 22 of the bag 20.

  Therefore, a cylindrical body 37 made of rubber cloth or the like, which is the same material as the cloth of the cylindrical body 30, is wound around and bonded to the entire outer peripheral surface of the connecting portion 32. The connecting portion 32 around which the cylindrical body 37 is wound is thicker than the wheel push-up portions 31 and 31a of the bag body 30, and has low flexibility and low expansion. Thereby, the possibility of contact between the bottom of the vehicle body 2 and the bag body 30 is reduced.

  Further, the left and right ends of the cylindrical body 37 are disposed at the boundary between the wheel push-up portions 31 and 31a and the connecting portion 32, and the left and right ends of the cylindrical body 37 are respectively band bodies 38 and 38a. Wrapped and glued. Thus, the flexibility of the boundary between the wheel push-up portions 31 and 31a and the connecting portion 32 in the bag 30 is further reduced, and the degree of expansion of the entire connecting portion 32 is further reduced.

  Referring to FIG. 9, the bag 30R has the same structure as the bag 30 as described above, and the wheel push-up portions 31 and 31a of the bag 30, the connecting portion 32, the injection port 34, the through hole 35, 35A and the same as the peripheral parts 30a and 30c, it has the wheel push-up parts 31R and 31Ra, the connection part 32R, the injection port 34R, the through holes 35R and 35Ra, and the peripheral parts 30Ra and 30Rc.

  The method of pushing up the vehicle 1 by the vehicle pushing-up device 10A having the bags 30, 30R is roughly the same as the method of pushing up the vehicle 1 by the vehicle pushing-up device 10 having the bags 20, 20R with reference to FIGS. Is the same.

  The difference is that when the wheels 3, 3a are placed on the wheel push-up portions 31, 31a of the bag 30 in the initial state (unfilled state) laid on the ground surface E, the through holes 35, 35a The lowermost end 3b of each wheel 3, 3a is arranged. Similarly, the lowermost ends 4b of the wheels 4, 4a are arranged in a pair of through holes 35R, 35Ra of the bag 30R.

  When the gas discharged from the air compressor 11 is injected into the injection port 34 of the bag 30 through the air hose 12, the bag 30 expands, and accordingly, a funnel-like shape is formed around the peripheral edge 30a of the wheel push-up portion 31. Is formed. The front lower portion 3f and the rear lower portion 3r of the wheel 3 are pushed up at the front and rear portions of the peripheral edge portion 30a of the slope of the concave portion 30b, and the lowermost end 3b of the wheel 3 is raised above the through hole 35. Similarly, the wheel 3a is also pushed up by the slope of the funnel-shaped recess 30d formed around the peripheral portion 30c of the wheel push-up portion 31a.

  Further, the bag 30R is also inflated by injecting a gas through the injection port 34R, and a funnel-shaped recess is formed around each of the peripheral edges 30Ra, 30Rc surrounding the through holes 35R, 35Ra. It pushes up the wheels 4 and 4a.

  Next, a vehicle lifting device 10B according to a third embodiment of the present invention will be described.

  FIG. 14 is a plan view of a vehicle lifting device according to a third embodiment of the present invention, and FIG. 15 is a front view showing a state where the vehicle is raised by the vehicle lifting device of FIG.

  Note that a side view of a state where the vehicle is pushed up by the bag of the vehicle lifting device 10B according to this embodiment, and a cross-sectional view of the bag in that state are the same as those in FIGS. 2 and 4 relating to the vehicle lifting device 10. Therefore, the description is omitted here.

  Referring to these figures, vehicle lifting device 10B is the same as vehicle lifting device 10 shown in FIG. 1 and the like, except that it includes bags 40, 40R instead of bags 20, 20R.

  Like the bag body 20 and the bag body 20R, the bag bodies 40 and 40R have the same structure, and in this embodiment, the bag bodies 40 and the wheels 4 and 4a are used to push up the wheels 3 and 3a. The bag 40R is used for lifting. Hereinafter, the bag 40 will be described as a representative of both the bags 40 and 40R.

  The bag body 40 is made of a cloth such as a rubberized cloth, like the bag body 20, and has left and right wheel push-up portions 41, 41a. 42.

  In the center of the bag 40 in the front-rear direction, a partition 40a formed by bonding the upper cloth portion and the lower cloth portion of the bag 40 is provided between the left and right ends of the bag 40 in the same manner as the above-described partition portion 20a. It is formed to extend in the direction. With the partition 40a as a boundary, the bag 40 is divided into a front bag 40f and a rear bag 40r, and the inner cavity 43 of the entire bag 40 is enclosed by the front cavity 43f of the front bag 40f. And a rear lumen portion 43r included in the rear bag portion 40r.

  Accordingly, also in the bag 40, a V-shaped valley portion having the partition 40a as the bottom end is formed by filling the lumens 43f, 43r of the front and rear bag portions 40f, 40r with gas, similarly to the bag 20. The V-shaped valley portion is configured to exert a push-up action and a support action on the wheels 3, 3a mounted on the wheel push-up portions 41, 41a.

  Injection ports 44 and 45 are provided in the front and rear bag portions 40f and the rear bag portion 40r in the vicinity of one left and right end, respectively, in a row in front and rear. The gas injected from the inlet 44 fills the entire front lumen 43f of the front bag portion 40f, and simultaneously and uniformly inflates all portions of the front bag portion 40f corresponding to the wheel push-up portions 41, 41a and the connecting portion 42. . Similarly, when gas is injected from the injection port 45 into the rear lumen 43r, the entire rear bag 40r expands.

  The front and left and right ends of the front bag 40f and the rear and left and right ends of the rear bag 40r are made of the same material as the bag 40, such as a tape 46, as a means for suppressing the expansion of the bag 40. Tape is stuck and adhered.

  For the same purpose as that of the tape 46 or the like, the bag from the rear part of the front bag part 40f to the front part of the rear bag part 40r across the partition part 40a is formed into a V-shaped valley part when the bag body 40 is inflated. At an appropriate position in the left-right direction of the body 40, a tape made of the same material as the bag body 40, such as the tape 47, is attached and adhered.

  As in the case of the bag 30, the connecting portion 42 of the bag 40 is shorter in the front-rear width than the left and right wheel push-up portions 41, 41a. That is, the portion from the left and right mid-portion to the left and right inner end of each wheel push-up 41, 41a narrows in a trapezoidal shape in plan view, and the connecting portion 42 formed between the left and right inner end of both wheel push-ups 41, 41a moves forward and backward. The width is short. Furthermore, since the partition part 40a is formed in the front-back middle of the bag body 40, the front-back width of each of the front bag part 40f and the rear bag part 40r in the connection part 42 is very short.

  Here, in comparison with the bag body 30, in the case of the bag body 30, in the state where the lumen 33 is expanded and inflated by the pressure of the enclosed gas or liquid, the vertical width becomes the largest in the connecting portion 32 due to the expansion. This is the central portion in the front-rear direction of the entire connecting portion 32, and the upper end position thereof is considerably high. On the other hand, in the case of the connecting portion 42 of the bag body 40, the front and rear central portions of the entire connecting portion 42 are the partitioning portions 40a, so that this portion does not expand.

  The portion of the connecting portion 42 where the vertical width becomes the largest when inflated is the front and rear center portion of each of the front bag portion 40f and the rear bag portion 40r, but the front and rear width of each of the front bag portion 40f and the rear bag portion 40r as described above. Is very small, the increase in the vertical width due to the expansion of these front and rear central portions is also suppressed to be small, and is much smaller than the vertical width due to the expansion of the front and rear central portions of the entire connecting portion 32 of the bag body 30. ing.

  Therefore, the upper end of the connecting portion 42 when the bag body 40 is inflated (that is, the upper end of the front and rear center portions of the front and rear bag portions 40f and 40r) is at a very low position, and this portion contacts the bottom of the vehicle body 2. The effect of reducing the possibility is great.

  Further, the front and rear widths of the front bag portion 40f and the rear bag portion 40r in the connection portion 42 are extremely short, and accordingly, the front lumen portion 43f of the front bag portion 40f and the rear lumen portion 43r of the rear bag portion 40r respectively. Has a fairly small overall volume. Therefore, the time required to replace the air hose 12 connected to one of the inlets 44 and 45 with the other on the way can be reduced, while reducing the time required for filling the entire bag body 40 with air.

  This time-saving effect is more effective in filling the gas into the two large-volume cavities 23f and 23r of the bag body 20 using the two intake ports 24 and 25, and furthermore, one intake port 34 However, the use of gas is still more remarkable than the operation of filling the cavity 33 of the bag body 30 with a gas having a considerably large overall volume.

  Further, the same effect as the effect of shortening the time required for inflating the bag 40 can be obtained in the inflation work of the bag 40R having the same structure as the bag 40. Therefore, the time required to complete the inflation of both bags 40, 40R is very short compared to the time for both bags 20, 20R and the time for both bags 30, 30R. The effect of shortening the time appears more remarkably.

  14 and 15, the bag 40R includes a partition 40Ra, a front bag 40Rf, a rear bag 40Rr, and inlets 44R and 45R, and the partition 40a of the bag 40 and the front bag, respectively. It corresponds to the part 40f, the rear bag part 40r, and the injection ports 44 and 45.

  Next, a vehicle lifting device 10C according to a fourth embodiment of the present invention will be described.

  FIG. 16 is a plan view of a vehicle lifting device according to a fourth embodiment of the present invention.

  Referring to the figure, vehicle lifting device 10C includes an integrated bag body 50 formed by combining bags 40, 40R, and a connecting cylinder 51 interposed between bag 40 and bag 40R. It is the same as the vehicle lifting device 10B shown in FIG.

  The connecting cylinder 51 is an opening-shaped front and rear end cylinder made of a material having the same flexibility as the bags 40 and 40R. An opening is provided at the rear end of the rear bag portion 40r of the front bag body 40, and the front end of the connecting cylinder 51 is connected to this opening. On the other hand, an opening is provided at the front end of the front bag 40Rf of the rear bag 40R, and the rear end of the connecting cylinder 51 is connected to this opening.

  In the bag 50 thus configured, the inner cavity of the rear bag 40r of the bag 40, the inner cavity of the connecting tube 51, and the inner cavity of the front bag 40Rf of the bag 40R communicate with each other to form an integral body. The inner cavity 52 is formed, and gas from the air compressor 11 is injected into only one of the inlet 45 of the rear bag 40r of the bag 40 and the inlet 44R of the front bag 40Rf of the bag 40R. By doing so, the gas is filled into the entire inner cavity 52, and the rear bag 40r of the bag 40 and the front bag 40Rf of the bag 40R can be inflated simultaneously.

  Further, since the bag body 50 including the bag bodies 40, 40R and the connecting cylinder 51 can be handled as an integral body, the bag body is different from the vehicle having the separate bag bodies 40, 40R as in the vehicle lifting device 10B. The work of laying and removing the body 50 and the like can be easily performed.

  The connecting cylinder 51 is preferably provided with a member that suppresses expansion, such as the cylindrical body 37 and the band bodies 38 and 38a provided on the connecting portion 32 of the bag body 30 shown in FIG. 9 and the like.

  In the embodiment shown in FIG. 16, the connecting cylinder 51 is interposed between the connecting portion 42 of the bag 40 and the connecting portion 42R of the bag 40R. However, the present invention is not limited to this. The wheel pushing portions 41 of the bag 40R and the wheel pushing portions 40R of the bag body 40R may be connected by the connecting cylinder 51.

  Further, in the wheel lifting device 10C, the bags before and after the connection via the connecting tube 51 are not limited to the bags 40 and 40R, but are shown in the bags 20 and 20R shown in FIG. The bags 30 and 30R may be used.

  In particular, if the bag bodies 30 and 30R are connected to each other by the connecting cylinder 51, the filling of the gas into the entire cavity of both the bag bodies 30 and 30R can be performed by the injection port 34 of the bag body 30 or the injection port of the bag body 30R. Can be performed using only one of them.

  FIGS. 17A and 17B are views showing a bag structure used in a vehicle lifting device according to a fifth embodiment of the present invention, wherein FIG. 17A is a plan view, and FIG. FIG. 3 is a sectional view taken along line G of FIG.

  Referring to the figure, vehicle lifting device 10D of the present embodiment uses bag 60 as a bag for pushing up the left and right wheels of the vehicle.

  The bag body 60 has basically the same structure as the bag body 20X shown in FIG. 7, and therefore, the following description will focus on differences from the bag body 20X.

  The bag body 60 is obtained by removing the partition 20Xa having the through holes 29, 29a, and 29b for inserting the band bodies 26, 26a, and 26b from the bag body 20X. That is, the bag body 60 is a structure formed by binding two tubular bag bodies 61 and 62 arranged in parallel with each other by the band bodies 26, 26a and 26b twisted in a figure eight shape. Assuming that the tubular bag 61 is disposed in front of the tubular bag 62, the inside of the tubular bag 61 is the front lumen 23f, and the inside of the tubular bag 62 is the rear lumen. 23r. Similarly to the bag 20X, the bands 26, 26a, 26b as the expansion suppressing portions are not adhered to the cylindrical bags 61, 62. If the bands 26, 26a, 26b are removed, the bags 60 are separated. Are separated into cylindrical bag bodies 61 and 62.

  As long as possible, any one of the above-described embodiments may be applied to another embodiment.

  For example, the mounting mode of the leg members 28 and 28a shown in FIG. 6 can be applied to the bags 30 and 30R of the vehicle lifting device 10A and the bags 40 and 40R of the vehicle lifting device 10B.

  In the embodiment shown in FIG. 6, the bag body can be inflated in a stable state, and has a function as a weight material for preventing the inflated bag body from rising even in a flood. The present invention is not limited to the embodiment of the leg members 28 and 28a as illustrated.

  Further, the configuration of the partition portion 20Ya having the partition wall 20w as shown in FIG. 8 can be applied to the bags 40 and 40R in the vehicle lifting device 10B. In this case, since the partition wall has a vent, the gas is injected into only one of the inlets 44 and 45 instead of sequentially injecting the gas into the bags 40f and 40r. With the pressure, the front and rear lumen portions 43f and 43r can be simultaneously expanded, and the front and rear bag portions 40f and 40r can be inflated simultaneously.

  In each of the vehicle lifting devices 10, 10A, 10B, 10C, and 10D, the outside air compressed by the air compressor 11 is injected into the bag. However, what is sealed in the bag may be any as long as it functions to expand the bag by the pressure, and may be, for example, a liquid instead of a gas. As a means for injecting the liquid into the bag, a liquid pump can be considered. In addition, it is conceivable to use an exhaust gas instead of the outside air even if a gas is used. In this case, it is conceivable to connect an exhaust port (not shown) of the vehicle 1 to an inlet of the bag via the air hose 12.

  As a representative of the vehicle lifting devices 10, 10 </ b> A, 10 </ b> B, 10 </ b> C, and 10 </ b> D as described above, the vehicle lifting device 10 includes a flexible bag 20 that can be inflated by the pressure of a sealed gas or liquid. 20 has a wheel push-up portion 21 for being installed under the wheel 3 of the vehicle 1, and the wheel push-up portion 21 is provided under the wheel 3 of the vehicle 1, and is attached to the bag 20. The wheel 3 is configured to be pushed up by expanding with the pressure of the enclosed gas or liquid. With such a configuration, the wheel push-up portion 21 installed below the wheel 3 expands and pushes up the wheel 3. However, since the wheel 3 which is initially in a ground contact state is lifted, the conventional vehicle The amount of expansion required for the wheel push-up portions 21 can be smaller than when a vehicle body bottom itself having a certain height from the beginning is pushed up like a push-up device (air jack). Thus, the amount of gas or liquid sealed in the bag 20 can be reduced, and the time required for pushing up the vehicle 1 can be reduced. Further, the volume of the lumen 23 of the bag body 20 when gas or liquid is not sealed can be almost zero, and the bag body 20 can be folded like a sheet. It is also convenient to store it in the vehicle 1 at the time of use.

  The wheel push-up portions 21 representing the wheel push-up portions 21, 21 a, 41, 41 a (the wheel push-up portions 31 representing the wheel push-up portions 31, 31 a) are expansion suppressing portions in which expansion due to pressure is suppressed. A partition 20a (peripheral edge 30a or a strip 26, 26a, 26b having a twisted intersection) is provided. The portion near the expansion suppressing portion in the wheel push-up portion 21 is expanded by pressure to form the slopes 20b, 20c, and pushes up the wheel 3 in a state where the slopes 20b, 20c are in contact with the wheel 3. With such a configuration, the pressure of the gas or liquid sealed in the bag body 20 on the slopes 20b and 20c formed in the vicinity of the expansion suppressing portion due to the expansion of the wheel push-up portion 21 is applied to the slopes 20b and 20c. Pushing forces Ff and Fr are applied to the abutting wheel 3 to push up the wheel 3. Further, by forming such slopes 20b, 20c on both front and rear sides with the expansion suppressing portion (partition portion 20a) interposed therebetween, the pressure of gas or liquid applied to the front and rear slopes 20b, 20c is applied to the wheel 3. Push-up forces Ff and Fr from two points (front lower part 3f, rear lower part 3r) are added. Thereby, the wheel 3 can be reliably pushed up in a stable state by the pressure action of the gas or liquid sealed in the bag body 20.

  The partitioning portion 20a, which is an expansion restricting portion of the wheel push-up portion 21, and the peripheral edge portion 30a, which is an expansion restricting portion of the wheel push-up portion 31, include portions above and below the lumens 23, 33 in the bags 20, 30. It is configured by connecting the parts. With such a configuration, the expansion of the bag body 20 (30) including the wheel push-up portions 21 (31) means the expansion of the lumen 23 (33), and is above the lumen 23 (33). In the part where the part is connected to the lower part, the expansion of the lumen due to the pressure of the gas or liquid is suppressed, and therefore, this part functions as an expansion limiting part. The connection between the upper portion and the lower portion of the bag body 20 (30) may be made by directly abutting and bonding these portions, for example, so that the expansion restricting portion can be easily formed, and the cost can be reduced. Can be achieved.

  The expansion restricting portion of the wheel push-up portion 21 as a representative of the wheel push-up portions 21, 21a, 41, 41a is constituted by a partition portion 20a that divides the lumen 23 into two lumen portions 23f, 23r. With such a configuration, while the wheel push-up portion 21 is prevented from expanding at the partition portion 20a, the front bag portion 20f and the rear bag portion 20r, which are both sides sandwiching the partition portion 20a, expand, and the wheel push-up portion 21 is partitioned. A valley-shaped portion having the portion 20a as a bottom end is formed. The wheel push-up portion 21 pushes up the wheel 3 by bringing the slopes 20b and 20c of the valley-shaped portion into contact with the wheel 3. Thus, only by providing the simple structure of the partition portion 20a, the inflating action of the wheel push-up portion 21 of the bag body 20 due to the pressure of the enclosed gas or liquid can surely push up the wheel 3 in a stable state. Since it works so as to form a valley-shaped portion, the cost can be reduced.

  The expansion restricting portion of the wheel push-up portion 31, which is representative of the wheel push-up portions 31, 31 a, is configured by a peripheral portion 30 a of a through hole 35 penetrating the bag 30 up and down. With this configuration, while the wheel push-up portion 31 is prevented from expanding at the peripheral portion 30a, the peripheral portion of the peripheral portion 30a expands, and the funnel-shaped concave portion 30b having the peripheral portion 30a as a bottom end. To form The slope of the concave portion 30b (the front portion and the rear portion of the peripheral portion 30a) is brought into contact with the wheel 3 to push up the wheel 3. In this way, only by providing the simple structure of the through hole 35 and the peripheral portion 30a, the inflating action of the wheel push-up portion 31 of the bag body 30 due to the pressure of the enclosed gas or liquid ensures the wheel 3 in a stable state. Since it functions so as to form a funnel-shaped concave portion that can be pushed up, the cost can be reduced.

  The bag 20, which is a representative of the bags 20, 30, and 40, has a pair of wheel push-up portions 21 and 21a, and is installed under each of the pair of left and right wheels 3, 3a of the vehicle 1. And With this configuration, the pressure of the gas or liquid sealed in the bag body 20 causes the pair of wheel push-up portions 21 and 21a to expand together, thereby pushing up the pair of left and right wheels 3 and 3a of the vehicle 1 to lift the vehicle body 2. The vehicle 1 can be raised without tilting left and right. Therefore, it is possible to eliminate a situation in which one of the left and right portions of the vehicle body 2 is not raised and is damaged by flooding when the surface of the ground is flooded.

  The bag 20, which is representative of the bags 20, 30, and 40, has a connecting portion 22 that connects the pair of wheel push portions 21, 21a between the pair of wheel push portions 21, 21a. With this configuration, the connecting portion 22 is disposed below the bottom of the vehicle body 2 between the pair of left and right wheels 3 and 3a in the bag body 20, and corresponds to the vehicle width of the vehicle 1. Thus, the pair of wheel push-up portions 21 and 21a can be installed below the pair of left and right wheels 3 and 3a, respectively. That is, the pair of left and right wheels 3 and 3a can be pushed up by one bag body 20, so that the work of laying the bag body 20 can be reduced and the work of injecting gas or liquid into the bag body 20 can be facilitated. Can be planned.

  A pair of wheel push-up portions 21, 21 a in the bag 20, which is representative of the bags 20, 30, 40, are connected via a connecting portion 22 so that the gas or liquid sealed in the bag 20 can be mutually circulated. Have been. With this configuration, the pressure of the gas or liquid injected from any one location in the bag body 20 is applied to the two wheel push-up portions 21 and 21a substantially simultaneously and substantially evenly, and a pair of wheel push-up portions is provided. The pair of left and right wheels 3, 3a disposed on each of the wheels 21 and 21a can be pushed up substantially simultaneously and substantially evenly, so that the work of injecting gas or liquid for inflating the bag body 20 is facilitated and necessary. You can save time.

  The direction in which the connecting portion 32 extends from one of the pair of wheel push-up portions 31, 31 a of the bag 30 representing the bags 30, 40 to the other is defined as the longitudinal direction of the bag 30. In the lateral direction, the width of the connecting portion 32 is smaller than the width of the pair of wheel push-up portions 31 and 31a. With such a configuration, the inner cavity 33 of the bag body 30 is sufficiently large to push up the wheels 3 and 3a by the expansion of the gas or liquid sealed in the bag body 20 at the wheel push-up portions 31 and 31a. Although it is necessary to have a large volume, by reducing the width of the connecting portion 32 in the short direction of the bag 30, the volume of the lumen 33 of the entire bag 30 is reduced. The time required for injecting a gas or liquid for inflating the body 30 can be reduced.

  The connecting portion 22 as a representative of the connecting portions 22, 32, and 42 has an expansion suppressing portion that suppresses vertical expansion due to expansion of the bag body 20. With such a configuration, the ground height at the upper end of the connecting portion 22 extending in the vertical direction due to the expansion is lower than the ground height at the bottom of the vehicle body 2 of the vehicle 1, so that the connecting portion 22 and the vehicle 1 Contact with the bottom of the vehicle body 2 can be avoided. Thereby, it is possible to avoid a failure of the parts mounted on the bottom of the vehicle body 2 or the bag body 20 itself, which may be caused by the contact.

  The expansion suppressing portion of the connecting portion 32 of the bag 30 is configured by externally covering the connecting portion 32 with a cylindrical body 37 and bands 38 and 38a which are members that reduce the flexibility of the bag 30. With this configuration, for the member to be packaged, the shape, material, thickness, size, position of the package, and the like are adjusted or selected, so that the vertical extension amount of the connecting portion is reduced to a desired amount. be able to. For example, by attaching a tubular member, a band member, a tape member, or the like made of the same material as the bag member 30 to the connecting portion, the portion becomes in the same state as the case where the thickness of the bag member 30 is increased. Flexibility is reduced, and the amount of expansion in the vertical direction due to expansion of the bag body 30 is reduced, whereby contact between the connecting portion 30 and the bottom of the vehicle body 2 can be avoided.

  The expansion restricting portion of the connecting portion 22 as a representative of the connecting portions 22 and 42 connects a portion above the lumen 23 and a portion below the lumen 23 in the bag body 20 to form the lumen 23 into two lumen portions 23f. , 23r. With such a configuration, originally, the portion of the connecting portion 22 that is displaced the largest in the up-down direction (the highest position) due to the expansion is a portion located at the center of the bag body 20 in the lateral direction. However, for example, by forming the partition portion 20a in this portion of the connecting portion 22, on the contrary, the amount of vertical displacement of the portion is minimized. On the other hand, when the partition portion 20a is formed in this manner, the maximum displacement in the vertical direction due to expansion in the bag body 20 is caused by the portions 20f, 20r including the respective lumen portions 23f, 23r. , The maximum displacement amount is smaller than that of the central portion in the lateral direction of the connecting portion 22 when the partition portion 20a is not provided. In particular, in the bag body 40 of the vehicle lifting device 10B, the structure of the partition part 40a of the connecting part 42 and the width of the connecting part 42 in the short (front-back) direction of the bag body 40 are set to the width of the pair of wheel pushing parts 41, 41a. The maximum extension amount of each of the bag portions 40f, 40r is further reduced. Thereby, the contact between the bottom portion of the vehicle body 2 and the connecting portion 40 is more reliably avoided, and the volume of the combined inner lumens 43f and 43r of the connecting portion 42 when the bag body 40 is inflated is also reduced. The time required for injecting gas or liquid for inflation of the body 40 can be reduced.

  The partition part 20a of the connecting part 20 representing the connecting parts 20 and 40 extends so as to reach the pair of wheel push-up parts 21 and 21a. With such a configuration, each of the wheel pushing portions 21 and 21a includes the partition portion 20a as an expansion suppressing portion, and while each of the wheel pushing portions 21 and 21a is suppressed from expanding by the partition portion 20a, Both side portions 20f and 20r sandwiching the partition 20a expand to form a valley-shaped portion having the partition 20a as a bottom end. The wheels 3, 3a can be pushed up by bringing the slopes 20b, 20c of the valley-shaped portions into contact with the wheels 3, 3a. In this way, with a simple structure in which the partition portion 20a formed by the connecting portion 22 is simply extended to the two-wheel push portions 21, 21a, each of the wheels is inflated to the two-wheel push portions 21, 21a by the inflation action of the bag body 20. 3, 3a can be configured to be pushed up in a stable state, and the cost can be reduced.

  The partition 20Ya of the bag 20Y has a vent 20v that is an opening that allows gas or liquid to flow between the two lumens 23f and 23r. With such a configuration, in order to inflate the bag body 20Y by expanding both of the two lumen portions 23f and 23r with the pressure of the gas or liquid originally sealed in the bag body 20Y, Each of the portions 20f and 20r including the portions 23f and 23r is provided with an inlet 24 and 25 respectively, and when it is necessary to sequentially inject gas or liquid into both the inlets 24 and 25, a vent 20v which is an opening is provided. The gas or liquid can flow between the two lumens 23f and 23r through the inlet, so that the gas or liquid injected from one inlet 24 (or the inlet 25) can be introduced into the two lumens 23f and 23r. The respective portions 20f, 20r of the bag body 20 enclosing the respective lumen portions 23f, 23r can be inflated simultaneously. Thus, the operation of injecting gas or liquid for inflating the bag 20Y can be facilitated and the time can be reduced.

  In the vehicle lifting device 10C, the bag body 50 has four wheel lifting portions 41, 41a, 41R, and 41Ra, each of which is provided below each wheel 3, 3a, 4, 4a of the four-wheeled vehicle 1. The four wheel push-up portions 41, 41a, 41R, and 41Ra are evenly expanded by the pressure of the gas or liquid sealed in the bag body 50, so that all the wheels 3, 4 of the four-wheeled vehicle 1, It is configured to push up 3a, 4 and 4a. With this configuration, the body 2 of the vehicle 1 can be raised over the entire body without inclining by inflating one bag body 50. For this reason, it is possible to protect all parts of the vehicle body 2 from flood damage in the flooded state of the ground surface, and this is realized by inflation of one bag body 50, so that the work of laying the bag body 50 is easy and short. Can be time work.

  The bag 20, which is a representative of the bags 20, 30, 40, may be provided with leg members 28, 28a which are heavy materials having a specific gravity higher than that of water or seawater. For example, in a situation where the surface of the ground is flooded with fresh water or seawater, the bag 20 is floated on the flooded surface L even when the bag 20 is inflated by filling with gas (air or the like) having a lower specific gravity than water or seawater. The state laid on the surface of the ground E can be maintained without the need. For this reason, the stability of the laid bag body 20 can be improved.

  The vehicle lifting method using the vehicle lifting device 10 as a representative of the vehicle lifting devices 10, 10 </ b> A, 10 </ b> B, and 10 </ b> C includes a step of laying a bag 20 and a pair of left and right wheels of the vehicle 1 by moving the vehicle 1. A step of placing the 3, 3a on the bag 20; sealing the gas or liquid in the bag 20; inflating the bag 20 with the pressure of the sealed gas or liquid to push up the pair of left and right wheels 3, 3a; Process. Since the pair of left and right wheels 3, 3a is pushed up by such a method, both the left and right portions of the vehicle body 2 of the vehicle 1 can be raised. Further, since the bag body 20 with the wheels 3 and 3a mounted thereon is inflated to push up the wheels 3 and 3a, the wheels 3 and 3a which are initially in a contact state are raised, so that a certain amount is initially set. The amount of inflation required for the bag body 20 is smaller than the amount of inflation required to push up the bottom of the vehicle body 2 itself having the above-ground height. Accordingly, both the left and right portions of the bottom of the vehicle body 2 can be efficiently and quickly prevented from being flooded in a short time.

  In the vehicle lifting device 10 as a representative of the vehicle lifting devices 10, 10A and 10B, a pair of bags 20, 20R is provided, and one of the bags 20 is provided with a pair of left and right front wheels 3, 3a in the four-wheeled vehicle 1. And a pair of left and right rear wheels 4, 4a of the four-wheeled vehicle 1 is placed on the other bag 20R. By making the bags 20, 20R into a pair by such a method, all the wheels 3, 3a, 4, 4a of the four-wheeled vehicle 1 can be raised by inflation of both the bags 20, 20R. The entire vehicle body 2 of the vehicle 1 can be raised without tilting. Therefore, the entire bottom of the vehicle body 2 can be efficiently and quickly protected from flood damage in a short time. In addition, the individual bags 20, 20R themselves have a simple configuration, and the cost can be reduced.

  In the vehicle body lifting method using the vehicle lifting device 10C, the pair of left and right wheels 3, 3a is placed on the bag body 50, and at the same time, the other pair of left and right wheels 4, 4a of the vehicle 1 are placed on the bag body 50. .

  According to such a method, even when the vehicle 1 is a four-wheeled vehicle, all the wheels 3, 3a, 4, and 4a can be raised by inflation of one bag body 50, and the entire body 2 of the vehicle 1 can be raised. Can be raised without inclination. As described above, since there is only one bag body 50 to be laid and to be inflated by the pressure of the enclosed gas or liquid, the entire vehicle body 2 can be efficiently and quickly prevented from being flooded in a short time.

DESCRIPTION OF SYMBOLS 1 ... Vehicle 2 ... Body 3, 3a ... Wheels 4, 4a ... Wheels 10, 10A, 10B, 10C, 10D ... Vehicle lifting device 11 ... Air conditioner 12 ... Air hoses 20, 20R, 20X, 20Y ... Bags 20a, 20Xa ... Partition Part (expansion suppression part)
20b ... front slope 20c ... rear slope 20f, 20Rf ... front bag part 20r, 20Rr ... rear bag part 20w ... partition wall 20v ... ventilation holes 21, 21a, 21R, 21Ra ... wheel pushup part 22, 22R ... connection part 23 ... inside Cavity 23f Front cavity 23r Rear cavity 24, 24R Injection port 25, 25R Injection port 26, 26a, 26b Band 27, 27a, 27b, 27c Tape 28, 28a Leg material (weight) Material)
30, 30R ... bag body 30a, 30c ... peripheral part (inflation suppression part)
30b, 30d recessed portions 31, 31a, 31R, 31Ra wheel push-up portions 32, 32R connecting portions 33 lumens 34, 34R inlets 35, 35a, 35R, 35Ra through holes 36, 36a tape 37, cylinder Body 38, 38a ... band body 40, 40R ... bag body 40a, 40Ra ... partition part (inflation suppression part)
40f, 40Rf: front bag portion 40r, 40Rr: rear bag portion 41, 41a, 41R, 41Ra: wheel push-up portion 42, 42R: connecting portion 43: lumen 43f: front cavity portion 43r: rear cavity portion 44, 44R ... Injection port 45, 45R ... Injection port 46 ... Tape 47 ... Tape 50 ... Cylindrical body 51 ... Connecting cylinder 52 ... Inner cavity part 60 ... Bag body 61, 62 ... Cylindrical bag body The same reference numerals in each figure are the same or the same. The corresponding parts are shown.

Claims (19)

A vehicle lifting device,
With a flexible bag that can be inflated by the pressure of the enclosed gas or liquid,
The bag has a wheel push-up portion for being installed under a vehicle wheel,
The vehicle push-up device, wherein the wheel push-up device is configured to push up the wheel by being expanded under pressure of a gas or a liquid sealed in the bag when installed under the wheel. The wheel push-up portion includes an expansion suppressing portion in which expansion due to the pressure is suppressed,
The portion near the expansion suppressing portion in the wheel push-up portion expands to form a slope by the pressure, and pushes up the wheel while the slope is in contact with the wheel. The vehicle lifting device according to any one of the preceding claims.   The vehicle lifting device according to claim 2, wherein the expansion restricting portion is configured by connecting a portion of the bag body above and below a lumen.   The vehicle lifting device according to claim 3, wherein the expansion restricting unit is configured by a partition that divides the lumen into two lumens.   The vehicle lifting device according to claim 3, wherein the expansion restricting portion is configured by a peripheral portion of a through hole vertically penetrating the bag body.   2. The vehicle lifting device according to claim 1, wherein the bag body has a pair of the wheel lifting portions, and each of the bag members is installed below each of a pair of left and right wheels of the vehicle. 3.   The vehicle lifting device according to claim 6, wherein the bag body has a connecting portion between the pair of wheel pressing portions for connecting the pair of wheel pressing portions.   The vehicle push-up device according to claim 7, wherein the pair of wheel push-up portions are connected to each other through the connecting portion so that the gas or liquid sealed in the bag body can flow through each other. The direction in which the connecting portion extends from one of the pair of wheel push-up portions to the other is defined as a longitudinal direction of the bag body,
9. The vehicle lifting device according to claim 7, wherein a width of the connecting portion is smaller than a width of the pair of wheel push-up portions in a lateral direction of the bag body. 10.   The vehicle lifting device according to any one of claims 7 to 9, wherein the connecting portion includes an expansion suppressing portion that suppresses expansion due to the pressure.   The vehicle lifting device according to claim 10, wherein the expansion suppressing portion is configured by externally attaching a member that reduces flexibility of the bag body to the connecting portion.   The vehicle push-up device according to claim 10, wherein the expansion restricting portion is a partition portion that connects a portion above and below a lumen in the bag body to divide the lumen into two lumen portions. apparatus.   The vehicle lifting device according to claim 12, wherein the partition portion extends so as to extend over the pair of wheel push-up portions.   14. The vehicle lifting device according to claim 12, wherein the partition has an opening that allows gas or liquid to flow between the two lumens. 15. The bag has four wheel push-up portions,
Each of the four wheel push-ups is installed below each wheel of the four-wheeled vehicle,
The pressure of the gas or the liquid sealed in the bag body, the four wheel push-up parts are evenly expanded, so that all the wheels of the four-wheeled vehicle are pushed up. The vehicle lifting device according to any one of the above.   The vehicle lifting device according to any one of claims 1 to 15, wherein a weight member having a specific gravity larger than water or seawater is provided in the bag body. Laying a bag,
Moving the vehicle and placing a pair of left and right wheels of the vehicle on the bag body;
A method of sealing a gas or liquid in the bag, inflating the bag with the pressure of the sealed gas or liquid, and pushing up the pair of left and right wheels. The vehicle is a four-wheeled vehicle,
The bag body is a pair,
On one of the pair of bags, a pair of left and right front wheels of the four-wheeled vehicle is placed,
The vehicle lifting method according to claim 17, wherein a pair of left and right rear wheels of the four-wheeled vehicle is placed on the other of the pair of bags.   18. The vehicle lifting method according to claim 17, wherein the pair of left and right wheels is mounted on the bag, and at the same time, the other pair of left and right wheels of the vehicle are mounted on the bag.

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