JP3211714U - Automotive ladder and adapter used for it - Google Patents

Abstract

An object of the present invention is to provide a ladder for an automobile provided for facilitating access to a load mounted on a roof rack or a roof carrier of an automobile without adjusting the height of the ladder according to the height of the automobile without damaging the automobile. And a ladder for an automobile that facilitates carrying the ladder while traveling. An automobile ladder is used for loading or unloading luggage loaded on a roof rack of an automobile. Removably attach the adapter near the top edge of the ladder. The adapter has a side frame 230 having a sufficient length to be separated from the automobile, a horizontal frame 210 provided at the tip of the side frame to connect the side frames, and a plurality of adapters provided on the side opposite to the side frame. The flexible resin suction cup 218 is provided. [Selection] Figure 5

Description

  The present invention relates to an automobile ladder and an adapter used therefor, and more particularly to an automobile ladder and an adapter used therefor for accessing a load fixedly held on a roof rack of an automobile such as an SUV.

  Conventionally, in order to enjoy the outdoor life, a luggage fixing device called a roof rack or a roof carrier is attached to the top surface of a sports type vehicle such as an SUV, a wagon car, or a general passenger car, and luggage such as skis is attached thereto. . At that time, apart from general vehicles with low vehicle height, in the case of vehicles with high vehicle height, a stepladder or the like was used to access the roof. When using a stepladder or the like, a stepladder is also required for loading and unloading on the roof rack at the destination, and it is necessary to always carry the stepladder while traveling. If a stepladder is used, it is necessary to install the stepladder away from the automobile in order to prevent contact with the automobile, and there is a possibility that a large automobile may not reach the roof of the automobile sufficiently.

  Therefore, in Patent Document 1, in order to solve the problem that loading and unloading of luggage on an on-vehicle carrier of a wagon vehicle having a vehicle height and fixing them are not easy, they can be attached / detached / expanded at any position and at any height. A carrier ladder is attached to the car to facilitate the work.

  Patent Document 2 solves the problem that using a ladder for a truck vehicle is inconvenient to get on and off the loading platform directly, so that it is safe when getting on and off and does not get in the way even when the vehicle is running or when it is full of luggage. In order to achieve this, the ladder is stored in a storage and the storage is provided under the loading platform. By pulling out the ladder from the storage, it is possible to safely get on and off the loading platform directly.

JP 2003-104127 A JP 2006-213307 A

  In the carrier ladder described in Patent Document 1, the retractable ladder is held in the ladder container in the vehicle width direction between the roof and the carrier, and a caster attached to the ladder is used during use. The drawer is extended to the lower side of the vehicle.

  However, since the ladder described in this publication uses a roof carrier to fix the ladder, the roof carrier requires a high rigidity, and the roof carrier is applied to the vehicle even if an external force is applied from the ladder to the roof carrier. It needs to be fixed stably. Further, since the ladder container is held under the roof carrier, the height of the roof carrier is increased.

  In the case of a ladder for a truck described in Patent Document 2, the ladder is stored under the loading platform, and when used, the ladder is pulled out from the bottom of the loading platform so that the truck loading platform can be easily accessed. The spring attached to is used as an auxiliary force to be pulled under the loading platform. The ladder described in this publication seems to be suitable in the case of a truck with a margin under the loading platform, but it is difficult to realize in a passenger car such as an SUV because there is no space for placing the ladder on the lower surface of the vehicle.

  The present invention has been made in view of the above-mentioned problems of the prior art, and its purpose is to damage a car in a passenger car ladder provided to facilitate access to luggage mounted on a roof rack or roof carrier of a passenger car. The ladder can be attached to the automobile without being adjusted to a height corresponding to the height of the passenger car, and the ladder can be easily carried while traveling.

  A feature of the present invention that achieves the above object is that in an automobile ladder used for loading or unloading of a load mounted on a roof rack of an automobile, an adapter is removably attached in the vicinity of the upper end of the ladder. A pair of side frames that are sufficiently long to be separated from each other, a horizontal frame that is provided at the tip of the pair of side frames and connects the side frames, and is provided on the side opposite to the side frame. It has a plurality of flexible resin suction cups.

  In this feature, the ladder can be divided into a plurality of stages in the vertical direction, and the divided portion preferably has a telescopic projection and a cylindrical portion. The ladder includes a pair of left and right support columns and a plurality of treads disposed between the support columns, and each tread is rotatably attached to the support columns, and at least one of the plurality of treads is attached. It is preferable to provide a rotation restricting portion for restricting the rotation of the tread on the portion.

  In the above feature, the rotation restricting portion includes a rotation restricting device fixedly attached to the column, a reinforcing member disposed substantially in parallel with the step on the back side of the tread, and the rotation restricting device. It is desirable to have a locking member that can be loosely fitted to the reinforcing material and can slide in the longitudinal direction of the reinforcing material. Furthermore, the adapter includes a U-shaped bracket that holds the upper end of the ladder so that the height thereof can be adjusted, and the side frame is disposed so as to be rotatable in the vertical direction with respect to the bracket. A stopper that restricts the rotation of the side frame may be provided on the side frame.

  Further, in the above feature, a short link attachment portion for attaching one end side of a short link to an attachment portion for attaching a lowermost tread among the plurality of treads to the support, and a long link attached to the support above the attachment portion. A long link mounting part for attaching one end side is provided, a locking part for locking the end part of the short link to the middle part of the long link is provided in each link, and the short link and the long link are attached to each mounting part and the short link is attached. The length of the long link may be determined so that the opposite end of the attachment end of the long link can be grounded in a state where the long link is locked to the long link.

  Another feature of the present invention that achieves the above object is to provide an adapter for use in an automobile ladder used for loading or unloading luggage mounted on an automobile roof rack. A pair of left and right brackets formed with a side frame, a side frame rotatably connected to each of the brackets, a horizontal frame connecting the respective front end portions of the pair of side frames, and an opposite of the horizontal frame. The object is to provide a plurality of suction cups having flexible suction portions attached to the side frame side.

  And in this feature, the distance between the connecting portion of the horizontal frame and the pair of side frames in the horizontal frame is preferably formed to be substantially equal to the distance between the left and right columns of the ladder for the automobile. The horizontal frame may be rotatable in a horizontal plane with respect to the side frame when the ladder is arranged vertically. The side frame is provided with a stopper for restricting rotation of the side frame with respect to the bracket. The stopper is a leaf spring held in the side frame, a protrusion provided on the outer surface side of the leaf spring, and the leaf spring. It is desirable that the projection formed on the bracket is fitted with a hole and the projection formed on the bracket fits the hole.

  According to the present invention, a member that can secure a distance from the automobile and an adapter equipped with a suction cup are attached to the upper part of the ladder that can be disassembled and folded, and means for adjusting the height position of the adapter in the ladder is provided. It is possible to attach a ladder to the automobile without damaging the automobile and adjusting the height according to the height of the automobile, and it is easy to carry while traveling.

It is the figure which applied one Example of the ladder based on this invention to the motor vehicle. It is a perspective view which shows the earthing | grounding part of the ladder shown in FIG. 1, and is a figure which shows a ladder lower part. It is a perspective view which shows the rotation limitation part of the ladder shown in FIG. 1, and is a figure which shows a ladder upper part. It is the front view and bottom view (FIG. 3 (a), (b)) of the rotation restriction tool of the rotation restriction part shown in FIG. 2B, and the A arrow view (FIG. 3 (c)) of FIG. 2B. It is a disassembled perspective view of the adapter attached to the motor vehicle shown in FIG. FIG. 5 is a top view, a front view, and a side view of the adapter shown in FIG. 4. It is a figure explaining decomposition | disassembly and assembly of the ladder shown in FIG.

  Hereinafter, an embodiment of an automobile ladder and an adapter used therefor according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a state in use in which an automobile ladder (hereinafter also referred to as a ladder) 100 according to the present invention is attached to an SUV type automobile 10.

  A device called a roof rack or roof carrier 20 for holding the luggage 30 is attached to the upper surface of the roof of the automobile 10. In order to access the luggage 30 on the roof rack 20, the automobile ladder 100 is leaned against the side of the automobile 10. An adapter 200 according to the present invention, which will be described in detail later, is attached to the top of the ladder 100.

  The adapter 200 is in contact with the automobile without contacting with the corner near the corner that transitions from the upper surface to the side of the roof of the automobile 10, that is, above the window glass and the flange member, and the ladder 100 itself is separated from the automobile 10. doing.

  The details of the ladder 100 will be described with reference to FIGS. 2A, 2B and 3. FIG. 2A is a front perspective view (FIG. 2A) and a rear perspective view (FIG. 2B) of a ladder lower portion 120 of one embodiment of the automobile ladder 100 shown in FIG. FIG. 2B is a rear perspective view of the ladder upper portion 118. The ladder 100 can be disassembled into a plurality of stages at the intermediate portion in the longitudinal axis direction, and is divided into two stages in the vertical direction in this embodiment. FIG. 3 is a plan view (the same figure (a)) and a bottom view (the same figure (b)) which show the detail of the rotation limiting tool 150 used in the lower end part vicinity of a ladder upper part, and the arrow view by A of FIG. 2B. It is a figure (the figure (c)).

  Referring to FIG. 2B, in the ladder upper portion 118, a plurality of treads (steps) 106 are arranged between the left and right upper struts 102, 104 at intervals in the vertical direction. Since each upper support 102 and 104 is made of a standardized aluminum square pipe and step 106 is made of a standardized aluminum angle, the ladder 100 is lighter and more portable.

  Step 106 is pivotally fixed to upper struts 102 and 104 by a step fixture 114 including a screw, a plurality of resin washers and nuts at one place in each of the longitudinal direction, that is, both lateral ends. Has been. As shown in FIG. 2B, a reinforcing plate 132 extending in the lateral direction is disposed on the back side of step 106 so that the upper end portion of step 106 is substantially coincident. The reinforcing plate is fixed to the upper support columns 102 and 104 so as to be rotatable together with the step 106 by a step mounting tool 114.

  The left and right upper struts 102 and 104 are provided with a plurality of through holes 112 at their upper ends, and are used for positioning of the adapter 200 described later. A reinforcing member 138 is disposed on the back side of the step 106 at the bottom of the ladder upper portion 118 instead of the reinforcing plate 132. The reinforcing member 138 is made of an unequal side aluminum angle, and the long side extends in the vertical direction and the short side extends in the horizontal direction. Between the upper support columns 102 and 104 and the reinforcing material 138, a rotation restricting tool 150 shown in detail in FIG.

  In the ladder 100 of the present invention, the step 106 can be rotated with respect to the upper and lower struts 102, 104, 122, and 124 in order to improve the storage property. It is necessary to do so, and a rotation restricting portion 172 is provided. The rotation limiter 172 for preventing erroneous rotation of the step 106 in use may be provided at least in one stage of the plurality of steps 106, but provided at the ladder upper part 118 and the ladder lower part 120, respectively. Also good.

  The rotation restricting device 150 is formed of a bent T-shaped steel plate, a vertically extending fixing portion 163 is provided on the back surface of the upper support columns 102 and 104, and a bent bent portion 164 is provided on the outer side surface of the upper support columns 102 and 104. The position relative to the upper support columns 102 and 104 is kept unchanged. A hole 160 through which the step attachment tool 136 passes is formed in the middle portion in the longitudinal direction of the rotation restricting tool 150. The locking part 162 extends in the lateral direction toward the upper column 102 (104) facing the upper column 104 (102) to which the rotation restricting tool 150 is attached in a direction orthogonal to the fixed unit 163. .

  A pair of aluminum lock members 152 are loosely fitted to the reinforcing member 138. That is, the lock member 152 is made of a standard aluminum square pipe or an aluminum square tube, and when the lock member 152 is brought close to the upper struts 102 and 104, the lock member 152 has a reinforcing member 138 and a rotation limiter in its inner space. 150 holding portions 162 are held.

  As a result, the reinforcing member 138 is restricted from turning around the fixture 136 that attaches the reinforcing member 138 to the upper support columns 102 and 104. The lock member 152 includes a U-shaped leaf spring (not shown) inside, and a protrusion 240 is attached to one outer surface of the leaf spring.

  In order to project the protrusion from the lock member 152, a protrusion hole 156 is formed in the lock member 152. A leaf spring and a protrusion 240 (not shown) are used to hold the lock member 152 at a predetermined position of the reinforcing member 138. That is, by pressing the protrusion, the lock member 152 can smoothly move in the longitudinal direction of the reinforcing member 138.

  On the other hand, when the lock member 152 is slid away from the upper struts 102 and 104 in the lateral direction, the lock member 152 and the locking portion 162 of the rotation limiter 150 and the reinforcing member 138 are unlocked, and the locking portion 162 and the reinforcing material 138 can face in different directions. That is, the reinforcing member 138 can be rotated around the fixture 136. Note that the attachment 136 includes attachment parts such as a truss screw 136a, a resin washer, and a nut 136b.

  The lower ends of the upper struts 102 and 104 are connected to the lower struts 122 and 124, leaving standardized aluminum square pipe cavities as they are, and a connecting member 140 provided on the lower struts 122 and 124 described later. Constitutes a receiving part 182 into which is inserted. A protrusion hole 171 is formed in the lower end portion of the upper struts 102 and 104 on the front side, and the locking protrusion holes of the upper and lower struts 102, 104, 122, 124 when the lower struts 122, 124 are inserted. Function as.

  Next, referring to FIG. 2A, in the ladder lower part 120 of the ladder 100, a plurality of treads (steps) 106 are arranged at intervals in the vertical direction between the left and right lower supports 122 and 124. Each of the lower struts 122 and 124 is made of a standardized aluminum square pipe having the same cross-sectional size as the upper struts 102 and 104. Also in the ladder lower part 120, the step 106 and the reinforcing plate 132 are located at one place on both lateral ends thereof with respect to the lower supports 122 and 124 by a step attachment 114 including a screw, a plurality of resin washers and nuts. It is fixed so that it can rotate.

  A connecting member 140 made of standard aluminum square pipe having a size slightly smaller than that of the lower supports 122 and 124 is inserted into the upper ends of the lower supports 122 and 124 from the connecting material insertion port 128, and then the lower support post is fastened by a fastener 144. It is being fixed so that it may protrude from 122,124.

  In order to fix the connecting material 140, holes 145 are formed in the lower struts 122 and 124, and screw holes 147 are formed in the connecting material 140. A protrusion hole 146 is formed in the middle portion in the longitudinal direction of the connecting member 140 on the front side, and the protrusion 240 attached to one outer surface of a U-shaped leaf spring 238 accommodated inside the connecting member 140. However, it can project from the connecting member 140.

  The protrusions 240 function as locking and unlocking means when the lower struts 122 and 124 are inserted into the upper struts 102 and 104. A resin cap 142 is loaded in the opening 126 at the upper end of the connecting member 140 to prevent the connecting portion 170 from being deformed when the ladder 100 is frequently assembled and disassembled.

  By the way, the horizontal interval between the lower columns 122 and 124 and the horizontal interval between the upper columns 102 and 104 are almost the same at the position where the step 106 is perpendicular to the respective columns 102, 104, 122 and 124. Yes. Therefore, the connecting member 140 provided at the upper end portions of the lower struts 122 and 124 can be fitted into the receiving portions 182 at the lower end portions of the upper struts 102 and 104. By fitting the connecting member 140 to the upper support columns 102 and 104, the ladder 100 is stably integrated in the longitudinal direction, and the protrusion 240 maintains the stability.

  Next, the leg part provided in the lower end part of the ladder 100 is demonstrated. A resin socket 184 is attached to the grounding portion, which is the lower end of the lower columns 122 and 124, and prevents dirt, mud, and the like from entering the lower columns 122 and 124. A short link 312 is disposed on the back side of the lowermost step 106 and between the reinforcing plate 132 and the lower support columns 122 and 124 via a resin washer. Along with the reinforcing plate 132, it is attached to the lower columns 122 and 124.

  The short link 312 is made of an aluminum plate, and a protrusion 314 is attached to one surface opposite to the attachment end to the lower support columns 122 and 124. Similarly, a long link 310 made of an aluminum plate having a length longer than that of the short link 312 between the bottom step 106 and the step one step higher than the bottom step on the back side of the lower supports 122 and 124. Is rotatably attached to the lower struts 122 and 124 by a fastener 316 via a resin washer.

  A projection hole 318 is formed in the longitudinal intermediate portion of the long link 310 so that the projection 314 of the short link 312 can be locked. When the short link 312 and the long link 310 are rotated to lock the protrusion 314 in the protrusion hole 318, the end of the anti-attachment portion of the long link 310 extends obliquely downward from the position of the fastener 316, and the lower supports 122 and 124. The height of the socket 184 is almost the same as the bottom surface of the socket 184. Therefore, when the short link 312 is locked to the long link 310, the ladder 100 can be supported more stably.

  When not in use, the locking of the long link 310 and the short link 312 is released, and the long link 310 is rotated upward around the fastener 316 so as to be along the lower columns 122 and 124. Here, the reinforcing plate 132 is arranged such that there is a gap between the lower end of the reinforcing plate 132 arranged on the back side of the step 106 that is one step higher than the lowest step 106 and the tip of the long link 310.

  Further, the short link 312 is rotated upward around the step attachment 114 so as to be along the lower supports 122 and 124. At this time, since the length of the short link 312 is set to such a length that a gap is formed between the lower end of the long link 310 and the upper end of the short link 312, the long link 310 and the short link 312 are connected to the lower support column. It can be accommodated along the lower supports 122 and 124 on the back side of 122 and 124 (see FIG. 2A (a)).

  Next, an embodiment of the adapter 200 attached to the upper end portion of the ladder 100 will be described with reference to FIGS. 4 is an exploded perspective view of the adapter 200, FIG. 5 is a three-side view of the adapter 200, FIG. 5A is a top view, FIG. 5B is a front view, and FIG. It is a right view.

  The adapter 200 includes a lateral frame 210 that extends in the lateral direction and is formed slightly longer than the lateral distance of the ladder 100. The horizontal frame 210 is made of aluminum angle and has an upper surface and a front surface. A side frame 230 made of a standard aluminum square pipe is attached to the horizontal frame 210 so as to be rotatable. The pitch of the side frames corresponds to the width of the ladder 100 in use. Therefore, a hole 212 for rotating the side frame 230 is formed on the upper surface of the horizontal frame 210.

  In order to rotate the side frame 230, a through hole 226 through which the sleeve 220 serving as a radial bearing passes is formed in the side frame 230 in the vertical direction at the end of the side frame 230. A resin washer 222 serving as a thrust bearing is disposed at a position corresponding to the hole 226 on the upper surface of the side frame 230, and the fasteners 228 (see FIG. 5C) are sequentially arranged in the horizontal frame 210. Hole 212, washer 222, (side frame 230), and sleeve 220, and are fastened with a nut that is a fastener 228b.

  As a result, the side frame 230 can be rotated within a range of 180 ° in the horizontal plane. A lid 224 made of resin is attached to the end of the side frame 230 on the side of the horizontal frame, and is closely attached to the side frame by a spring material integrally formed on one side of the lid 224. The metal contact of the horizontal frame 210 is avoided.

  A U-shaped bracket 250 is attached to the end of the side frame 230 on the side opposite to the horizontal frame 210 to attach the tip of the ladder upper portion 118. In order to attach the bracket 250, a through hole 232 is formed in an end portion of the side frame 230 on the side opposite to the lateral frame and on a side surface portion.

  A hole 234 into which a projection 240 whose function is described below is fitted is formed on the side surface on the distal end side of the side frame 230 from the through hole 232 and outside in the lateral direction. A leaf spring 238 formed in a U-shape or a parabola shape is inserted into the end of the side frame 230 on the side opposite to the lateral frame, and a protrusion 240 is welded or screwed to one outer surface of the leaf spring. It is fixed and attached with etc.

  In the U-shaped bracket 250, a hole 256 is formed at a position corresponding to the hole 232 formed in the side frame 230, and a hole 254 is formed at a position corresponding to the hole 234. The hole 232 and the hole 256 are holes for the rotation shaft of the bracket 250, and screws which are fasteners 260 a are inserted into the holes 232 and 256 and are fastened by fasteners 260 b which are nuts.

  As a result, the bracket 250 can be rotated in the vertical direction around the side frame 230 about θ = ± 90 ° around the screw 260a as the central axis, or the side frame 230 can be rotated in the vertical direction around the bracket 250. It can be rotated in the range of approximately θ = ± 90 °.

  Here, since the protrusion 240 attached to the leaf spring 238 is always locked to the hole 234 of the side frame 230 and the hole 254 of the bracket 250 by the leaf spring 238, the bracket 250 is in a normal state with respect to the side frame 230. Can not rotate.

  On the other hand, when human force is applied as an external force against the urging force of the leaf spring 238 and the protrusion 240 is pushed into the inner side of the side frame 230, the tip of the protrusion 240 enters the inner side of the side frame 230 from the surface position of the side frame 230. At this point, the bracket 250 can rotate with respect to the side frame 230. That is, the protrusion 240 functions as a stopper for rotating the bracket 250.

  A hole 252 is also formed near the center of the U-shape of the bracket 250. By inserting a hole 252 and a rotary knob 258 threaded on the tip side into one of a plurality of holes 112 formed in the upper ends of the upper struts 102 and 104 of the ladder upper portion 118, and fastening with a nut 258b, The adapter 200 is fixed to the ladder 100 while the height is adjusted (see FIG. 5A).

  A funnel-shaped suction cup 218 having a screw mounting screw 216 formed on the back side is attached to the opposite side frame side of the horizontal frame 210, that is, the front side, and is fixed by a cap nut 216b. The suction part 214, which is the front side of the suction cup 218, is made of resin and has flexibility, and is a transition part from the top surface part to the side part of the roof of the automobile 10, and softly contacts the window glass and the collar part. It adsorbs depending on the shape of the contacted area.

  Here, the suction unit 214 is not necessarily a suction cup as long as it is a material or shape that does not damage the automobile when it comes into contact with the automobile, but the suction cup can adsorb to the automobile, so that the ladder can be installed stably. Is preferred for. When the suction cup 218 is brought into contact with the automobile 10 with the adapter 200 attached to the upper end of the ladder 100, the ladder is separated from the automobile 10 by the length of the side frame 230.

  Therefore, it is possible to prevent the ladder 100 from coming into direct contact with the automobile 10 and avoid damage to the automobile 10. Further, since the adsorbing portion 214 is made of resin, there is no impact in contact with the automobile 10 and the automobile is not damaged, and contact with the roof rack or the like can be prevented, so that damage to the roof rack or the like can be prevented.

  Next, FIG. 6 shows a state where the adapter 200 according to the present embodiment having the above-described configuration is attached to the automobile ladder 100, used, and disassembled and stored after use, as a joint model. FIG. 6 is a schematic view of only the ladder 100 to which the adapter 200 is attached. FIG. 6A shows a state where the suction cup 218 is attached to the automobile 10 (not shown in FIG. 6). ) Is a diagram showing a stage in the middle of disassembling the ladder 100, and FIG. 6C is a diagram showing a state in which the ladder 100 is completely disassembled and stored. The ladder 100 is stored and stored in the automobile 10 in the state shown in FIG. 6C and is kept in this state until it is used for unloading the luggage 30 at the destination.

  First, the state during use will be described. In the ladder 100, the adapter 200 is attached in the vicinity of the upper ends of the upper right column 104 and the upper left column 102, and the relative positions of the adapter side frame 230 and the upper columns 102, 104 cannot be changed. A joint 274 for rotating the side frame 230 relative to the bracket 250 relative to the horizontal axis is formed at an intermediate portion of the side frame 230.

  A joint 272 that rotates the horizontal frame 210 around the side frame 230 is formed on the distal end side of the side frame 230. In use, these joints 272 and 274 are locked by the rotation restricting portion 172 and cannot be rotated. Alternatively, joints 276 are formed at both ends of each step 106 of the ladder 100 to allow lateral movement of the step 106 or rotation about each post 102, 104, 122, 124.

  These joints 276 are also locked when the ladder 100 is in use because the lock member 152 described below is positioned in the vicinity of the lower supports 122 and 124. Since the lock member 152 accommodates together the reinforcing member 138 and the rotation restricting device 150 placed in parallel with the step 106, the step 106 of the rotation restricting portion 172 rotates with respect to the upper columns 102 and 104. become unable.

  Therefore, the ladder 100 can keep the interval between the columns 102 and 104 and 122 and 124 and the posture of the step 106 constant, and stably maintain the posture. During this use, the suction cup 218 is attracted to an appropriate position of the automobile 10.

  The long link 310 for grounding provided at the lowermost part of the ladder 100 is formed with a joint 278 and can be rotated. However, when the ladder 100 is used, the long link 310 is locked to the short link 312 by the fixing portion 320. , Help keep the ladder 100 in a stable position.

  That is, since the long link 310 and the short link 312 are respectively provided on both outer sides of the lower columns 122 and 124, the lower end portion of the ladder 100 is supported at four points or together with the bottoms of the lower columns 122 and 124, or at least three points. Support can be achieved and stable.

  Next, in the state of FIG. 6 (b), which is an intermediate stage where the use in the automobile 10 is finished and stored, the suction cup 218 is removed from the automobile 10, and the protrusion 240 attached to the leaf spring 238 is pushed into the side frame 230. Thus, the locking of the side frame 230 and the bracket 250 is released, and the side frame 230 can be rotated with respect to the bracket 250 at the joint 274.

  Then, by rotating the side frame 230 downward by about 90 °, the suction cup 218 is made compact so as to face downward. At the same time, in the connecting portion 170, the ladder upper portion 118 is lifted upward or the ladder lower portion 120 is pulled downward, so that the fitting of the ladder upper portion 118 and the ladder lower portion 120 is released, and both are separated.

  Further, by sliding the lock portion 152 of the rotation restricting portion 172 to the vicinity of the central portion between the columns 102 and 104, the integration of the rotation restricting device 150 and the reinforcing material 138 is released, and the rotation restricting member 138 rotates together with the reinforcing material 138. A possible step 106 rotation is possible. At this time, the engagement of the long link 310 and the short link 312 at the fixing portion 320 is also released.

  Since the rotation limiting unit 172 is unlocked, the joints 276 of the steps 106 of the ladder 100 are simultaneously rotated in FIG. 6C. That is, step 106 is made to raise or lower one support column 102, 122 (104, 124) on either side of the left or right with respect to the other support column 104, 124 (102, 122). , 122 and 124, and the distance between the columns 102 and 104 and 122 and 124 is reduced. Thereby, the size of the ladder 100 is reduced, and the ladder 100 can be easily accommodated in the automobile 10.

  In the above embodiment, the ladder 100 is divided into two parts in the vertical direction. However, it is also possible to divide the ladder 100 into three parts or four parts in order to make a larger ladder. Moreover, although the rotation restricting member is provided at the same height as the step, it may be a different height. However, if the step and the height position of the reinforcing member for restricting rotation approach each other, there is a risk that the step will be disturbed when the foot is placed on the step. Further, as described above, the rotation restricting portion may be provided for each divided ladder.

  DESCRIPTION OF SYMBOLS 10 ... Automobile, 20 ... Roof rack (roof carrier), 30 ... Luggage, 100 ... (for automobile) ladder, 102, 104 ... (Upper) support, 106 ... Tread (step), 108, 110 ... Connecting member, 112 ... (Adapter mounting) hole, 114 ... step mounting tool, 116 ... coupling material fixing tool, 118 ... ladder upper part, 120 ... ladder lower part, 122, 124 ... (lower) support column, 126 ... opening, 128 ... coupling material insertion port, 132 ... Reinforcement plate, 136, 136a to 136c ... Mounting tool, 138 ... Reinforcing material, 140 ... Connecting material, 142 ... Cap, 144 ... Fastener, 145 ... Hole, 146 ... Hole for projection, 147 ... Screw hole, 150 ... Rotation limiter, 152 ... Lock member, 156 ... Projection hole, 160 ... Hole, 162 ... Locking part, 163 ... Fixing part, 164 ... Bending part, 170 ... Connecting part, 171 Projection hole, 172... Rotation limiting portion, 182... Receiving portion, 184. Socket, 200. Adapter, 210 .. Horizontal frame, 212 .. Hole, 214 ... Suction portion, 216. , 220 ... Sleeve (radial bearing), 222 ... Washer (thrust bearing), 224 ... Lid, 226 ... Hole, 228, 228b ... Fastener, 230 ... Side frame, 232, 234 ... Hole, 238 ... Leaf spring, 240 ... Projection, 250 ... Bracket, 252, 254, 256 ... Hole, 258 ... Rotation knob, 258b ... Nut, 260a, 260b ... Fastener, 272-278 ... Joint, 310 ... Long link, 312 ... Short link, 314 ... Projection, 316 ... Fastener, 318 ... Protrusion hole, 320 ... Fixing part

In the above feature, the rotation restricting portion includes a rotation restricting device fixedly attached to the column, a reinforcing member disposed substantially in parallel with the tread on the back side of the tread, and the rotation restricting device. It is desirable to have a locking member that can be loosely fitted to the reinforcing material and can slide in the longitudinal direction of the reinforcing material. Furthermore, the adapter includes a U-shaped bracket that holds the upper end of the ladder so that the height thereof can be adjusted, and the side frame is disposed so as to be rotatable in the vertical direction with respect to the bracket. A stopper that restricts the rotation of the side frame may be provided on the side frame.

And in this feature, the distance between the connecting portion of the horizontal frame and the pair of side frames in the horizontal frame is preferably formed to be substantially equal to the distance between the left and right columns of the ladder for the automobile. before Kiyokowaku may be possible rotation with respect to the side frame. The side frame is provided with a stopper for restricting rotation of the side frame with respect to the bracket. The stopper is a leaf spring held in the side frame, a protrusion provided on the outer surface side of the leaf spring, and the leaf spring. It is desirable that the projection formed on the bracket is fitted with a hole and the projection formed on the bracket fits the hole.

Claims (12)

In the ladder for automobiles used for loading or unloading luggage loaded on the roof rack of automobiles,
A pair of side frames having a length sufficient to be separated from the vehicle;
A horizontal frame that is provided at the tip of the pair of side frames and connects the side frames;
And a plurality of resin members provided on the opposite side of the horizontal frame.   The automobile ladder according to claim 1, wherein the ladder can be divided into a plurality of parts in the vertical direction, and the divided parts each have a nesting projection and a cylindrical part. The ladder includes a pair of left and right columns and a plurality of treads arranged between the columns.
Each treadle is pivotally attached to the column,
The ladder for an automobile according to claim 1 or 2, wherein a rotation restricting portion for restricting rotation of the tread is provided at a portion where at least one of the plurality of treads is attached.   The rotation limiter includes a rotation limiter fixedly attached to the column, a reinforcing member disposed substantially in parallel with the step on the back side of the tread, and the rotation limiter and the reinforcing member. The ladder for an automobile according to claim 3, further comprising a lock member that can be loosely fitted to the reinforcement member and can slide in a longitudinal direction of the reinforcing member. The adapter includes a U-shaped bracket that holds the upper end of the ladder so that the height can be adjusted,
The said side frame is arrange | positioned so that rotation to the up-down direction with respect to the said bracket is possible, The stopper which restrict | limits the rotation of the said side frame was provided in the said side frame. The automobile ladder according to claim 1. A short link attaching part for attaching one end side of the short link to the attaching part for attaching the bottom step tread of the plurality of treads to the column,
A long link attachment portion for attaching one end side of the long link to the support above the attachment portion is provided, and an engaging portion for engaging an end portion of the short link with an intermediate portion of the long link is provided as the short link and the long link. The length of the long link is set so that the opposite end of the long link can be grounded with the short link and the long link being attached to each attachment portion and the short link being locked to the long link. The ladder for automobiles according to claim 3 or 4, wherein the ladder is defined. In an adapter used for a ladder for an automobile used for loading or unloading of a load mounted on an automobile roof rack,
A pair of left and right brackets formed with mounting portions for attaching both struts of the automobile ladder;
A side frame rotatably connected to each of the brackets;
A horizontal frame that connects the tip portions of the pair of side frames;
The adapter used for the motor vehicle provided with the resin-made members attached to the opposite side frame side of the said horizontal frame.   The distance between the connecting portions of the horizontal frame and the pair of side frames in the horizontal frame is substantially equal to the distance between the left and right support columns of the ladder for an automobile. The adapter used for the automobile described in 1.   The adapter for use in an automobile according to claim 7 or 8, wherein when the ladder is arranged vertically, the horizontal frame is rotatable in a horizontal plane with respect to the side frame. A stopper is provided on the side frame to limit the rotation of the side frame relative to the bracket,
The stopper is fitted with a leaf spring held in the side frame, a protrusion provided on the outer surface side of the leaf spring, a hole into which the protrusion formed on the leaf spring is fitted, and the protrusion formed on the bracket. An adapter for use in an automobile according to any one of claims 7 to 9, wherein the adapter is formed from a hole to be formed.   The ladder for automobile according to any one of claims 1 to 6, wherein the resin member is a resin sucker.   The adapter for use in an automobile according to any one of claims 7 to 10, wherein the resin member is a resin suction cup.