JP3918018B2 - Detachment prevention structure of tent unit in sliding open / close tent with fully open structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding open / close tent that can be expanded and contracted in a bellows type, and in particular, a structure for preventing a tent unit from being removed in a slide open / close tent that can completely open the top of a base frame when the tent unit is contracted It is related to.
[0002]
BACKGROUND OF THE INVENTION
This type of sliding open / close tent is used as a structure such as a warehouse on the ground, and is further used as a cover for a loading platform of a vehicle such as a truck or a trailer.
Of these, for example, when used as a cover for a vehicle bed, many configurations have been adopted in which the tent unit expands and contracts so that the load can be freely opened and closed so that the storage object can be taken in and out more easily. Further, in pursuit of this usability, the applicant of the present application was assigned the serial number P0997045KM on July 8, 1997; Application with domestic priority claim based on No.).
This means that the tent unit can be completely withdrawn from the storage space, the rail has high strength, and the rail has no step, so that smooth running of the tent unit can be expected.
[0003]
The serial number P0997045AM; the title of the invention “slidable opening and closing tent having a fully open structure of the tent unit” is specifically configured such that the rail is separable, and the end slide rail projects over the end of the base frame. It is characterized by. By the way, when the structure in which the end slide rail slides is adopted in this way, there is a risk that the rail will be cut and the tent unit may be derailed between the rails. Therefore, it is preferable that the actual product apparatus is provided with a derailment prevention structure that is not disclosed in the above application.
[0004]
[Technical issues for which development was attempted]
The present invention has been made in view of such a background, and in a sliding open / close tent in which the end slide rail can be separated and the tent unit can be completely opened, the tent unit is derailed from the gap between the rails. This is an attempt to develop a structure for preventing the tent unit from coming off in a sliding tent having a novel completely open structure that can be prevented.
[0005]
[Means for Solving the Problems]
That is, the structure for preventing the tent unit from derailing in the sliding open / close tent having the fully open structure according to claim 1 travels in a telescopic manner on a base frame on which a storage object is placed and a rail provided on the base frame. A main body fixing rail that is fixed to the base frame, and an end slide rail that is separable from the main body fixing rail and extends to the end of the base frame on the extension of the main body fixing rail. In the sliding open / close tent having a fully open structure in which the upper part of the base frame is fully opened by placing the contracted tent unit on the projecting portion of the end slide rail, the end slide rail is a main body When the tent unit is separated from the fixed rail and overhangs at the end of the base frame, the tent unit cuts off the main body fixed rail and the end slide rail. A stopper for preventing the wheel from coming out is provided on the base frame, the end slide rail or the slide support frame for supporting the end slide rail, and serves as a stopper for the wheel stopper. The portion appears in a state where the end slide rail protrudes, and is retracted in a state where the end slide rail and the main body fixing rail are connected.
According to the present invention, it is possible to prevent the tent unit from being accidentally dropped between the rails due to the malfunction of the limit switch. Therefore, it is not necessary to restore the wheel.
[0006]
In addition to the above requirements, the structure for preventing the wheel from falling off in the tent unit in the sliding open / close tent having the fully open structure according to claim 2 is characterized in that the wheel removing preventing stopper performs the appearance operation of the stopper portion in addition to the stopper portion. The end slide rail or the slide support frame that supports the end slide rail has a stopper portion that is brought into contact with the lock lever portion during the overhanging movement, and the end slide rail body fixing rail In the articulated movement, a stopper operating member is provided that abuts against the stopper portion to retract the stopper portion and maintains the attitude of the anti-derailing stopper in the overhanging state.
According to the present invention, the stopper portion is mechanically appeared / retracted and no sensor or the like is used, so that the manufacturing cost can be relatively low, the durability is high, and the operation is reliable. is there.
[0007]
Furthermore, in the sliding opening / closing tent having the fully open structure according to claim 3, the structure for preventing the tent unit from removing the wheel is in addition to the requirement of claim 2, and the stopper for preventing the wheel from removing is formed in an L-shape. The long side on one side from the bent part is used as a stopper part, and the short side on the other side is used as a lock lever part. The stopper operating member is an end slide. When the rail overhangs, the stopper comes into contact with the lock lever of the anti-derailing stopper, and when the end slide rail is connected to the main body fixing rail, it comes into contact with the stopper and tilts the stopper from above the rail. When the end slide rail is connected to the main body fixed rail, the end slide rail comes into contact with the stopper portion and retracts, and the end slide rail protrudes. The stopper portion is positioned above the lock lever portion so that the stopper portion is not pivoted and retracted. On the other hand, the front end of the tent frame is located at a position lower than the height of the stopper portion and higher than the height of the lock lever portion. An abutment body for abutting against the anti-derailing stopper is provided so that the frame does not derail between the rails.
According to the present invention, the anti-derailing stopper has a very simple structure with an L-shape, is less prone to failure, and is reliable in operation. In addition, repairs are easy and manufacturing costs can be reduced. In particular, the stopper part and the lock lever part of the anti-derailing stopper and the stopper operating member are responsible for two actions, the appearance and retraction of the stopper part and the stopper action, respectively. There is no waste.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on the illustrated embodiment in which the present invention is applied to a sliding open / close tent having a completely open structure of a tent unit. In the description, the anti-wheel-removal structure according to the present invention is due to the unique characteristic configuration of the slide-type opening / closing tent. Therefore, the overall configuration of the slide-type opening / closing tent will be described first, and then according to the present invention. The derailment prevention structure will be described.
A reference numeral 1 in the drawing is a slide-type open / close tent, which is placed, for example, at an appropriate place and used in a vehicle or the like as it is when moved. The slide-type open / close tent 1 includes a base frame 2 on which a storage object is placed, a rail R provided in parallel to the left and right of the base frame 2, a tent unit 10 that travels while extending and contracting on the rail R, A tent moving device 30 for driving the tent unit 10, a rail slide device 40 for driving the end slide rail 4 which is a part of the rail R and which is a feature of the present invention, the tent moving device 30 and the rail slide device The control panel 5 that performs control of 40 is a main member.
Each member will be described below.
[0009]
The base frame 2 will be described. As an example, the base frame 2 is formed in a rectangular shape using H-shaped steel or the like, and an appropriate bottom plate 2A for placing an object to be stored is laid on the base frame 2. Of course, the bottom plate 2A may not be provided depending on the usage mode such as using the sliding opening / closing tent 1 as a fixed material without moving, and the ground can be used as it is.
[0010]
Next, the tent unit 10 will be described. The tent unit 10 travels while extending and contracting on the rail R laid in parallel to the left and right of the base frame 2. The top, side and back of the extendable tent frame are covered with a tent curtain 11, Is provided with a shutter device 20. The specific structure of the rail R is the part most relevant to the present invention and will be described later.
[0011]
The tent frame will be described. As an example of this, the present applicant can adopt a structure for preventing the top of the tent curtain 11 from hanging down, which has already been filed in Japanese Patent Application No. 7-240893 (Japanese Patent Laid-Open No. 9-60349). Specifically, the drive frame 12 at the front end formed in a gate shape, the fixed end frame 13 fixed to the slide support frame 4A or the rear end of the end slide rail 4, the fixed end frame 13 and the drive It consists of an intermediate movable frame 14 provided between the frame 12 and a relay link rod 15 for connecting them in a pantograph shape. Wheels 12 a and 14 a for traveling on the rail R are provided at the lower ends of the drive frame 12 and the intermediate movable frame 14. Of these, the intermediate movable frame 14 includes a lower column frame 14A and a lifting frame 14B into which the frame is nested. With this configuration, when the tent unit 10 is contracted, the lifting frame 14B is pushed up by the relay link rod 15 as shown in FIGS. As a result, the tent curtain 11 that hangs down when contracted or the like is prevented from coming into contact with the object to be stored, and wind resistance is greatly suppressed when the tent curtain 11 is mounted on a loading platform such as a truck. Of course, the tent unit 10 may be a unit that does not employ the above-described structure for preventing the tent curtain 11 from hanging down.
[0012]
The shutter device 20 provided at the end of the tent unit 10 will be described. For example, as shown in FIG. 5, the shutter device 20 is a device in which a sheet-like shutter main body 21 is attached to a take-up drum 22 so as to be freely rewound. These are, for example, a shutter box 23 provided above the drive frame 12. It is stored inside. Further, when the shutter main body 21 is pulled out (when it is hung downward), a shutter guide 24 for guiding the shutter main body 21 is provided inside the pillar portions on both sides of the drive frame 12. The take-up drum 22 is driven by switching a rotation direction between a take-up direction and a feed-out direction of the shutter body 21 by a drive device 25 having a drive source as a drive motor. It should be noted that the shutter body 21 is provided with reinforcing bars 26 using metal pipes or the like as appropriate at horizontal intervals, which are fitted into the shutter guide 24 at both ends and smoothly wound and fed out. It is configured as follows. Further, the shutter main body 21 does not have to be in the form of a sheet, and may be a slat type or the like, or may be wound up manually.
[0013]
The tent moving device 30 will be described. As shown in FIG. 2, a driven sprocket 31 that is a driven wheel is rotatably provided at the left and right front ends of the base frame 2, and a drive sprocket 32 that is a drive wheel is rotatably provided at the left and right rear ends of the base frame 2. A traction chain 33 serving as a traction band is wound between the driven sprocket 31 and the drive sprocket 32. As shown in FIG. 4A, the traction chain 33 is connected to the lower portion of the drive frame 12 positioned at the top of the tent unit 10. A member of the traction chain 33 that is directly connected to the tent unit 10 is a retractor 33a. As shown in FIGS. 2 and 3, a tent drive shaft 34 that projects from the rear end surface of the base frame 2 and serves as a rotation transmission means is rotatably mounted by a bearing 35. The tent drive shaft 34 is provided with a relay sprocket 34b on the left side in FIG. 3A, and end sprockets 34a are provided at both ends. A tent drive motor M1 capable of forward and reverse rotation is provided on the left side of the rear end of the base frame 2, and a drive chain 37 is wound between the motor sprocket 36 provided on the output shaft of the tent drive motor M1 and the relay sprocket 34b. It has been turned. A tension sprocket 38 is rotatably provided above the end sprocket 34a of the tent drive shaft 34. The rear end side of the traction chain 33 is hung on the drive sprocket 32, the end sprocket 34a and the tension sprocket 38. When the tent drive motor M1 is driven in the above-described configuration, the tent drive shaft 34 rotates to drive the traction chain 33, and the tent unit 10 connected to the traction chain 33 extends and retracts back and forth on the rail R. Move while.
[0014]
Although the specific structure of the base frame 2 and the tent unit 10 up to this point is basically a conventionally known structure, the point that the drive sprocket 32 is provided at the rear end of the base frame 2 as described above is as follows. It is characteristic and important in the method of driving and using which will be described later. The tent moving device 30 may be a moving device such as a wire rope and pulley, a timing belt and pulley, a screw shaft and a sliding female screw block, in addition to those using sprockets and chains. As the tent moving device 30 having the retractor to be connected, any device can be used as long as the drive frame 12 can be pulled and moved between the front end and the rear end of the base frame 2.
[0015]
Next, the rail R will be described. The rail R has an I-shaped cross section as shown in FIG. 3B, and is provided so as to be slidable back and forth with respect to the main body fixing rail 3 provided in a fixed state with respect to the base frame 2 and the base frame 2 on the rear end side. And an end slide rail 4 that can be connected to and disconnected from the main body fixing rail 3.
Specifically, the main body fixing rail 3 is fixed to the fixed support frame 3 </ b> A, and the fixed support frame 3 </ b> A is fixed to the base frame 2. The end slide rail 4 is fixed to a slide support frame 4 </ b> A that is slidable with respect to the base frame 2. As shown in FIGS. 2, 6, and 7, the slide support frame 4A has a movable wheel 4a at the front end, and is fitted into the end of the fixed support frame 3A. Further, as shown in FIGS. 3B and 3C, a support roller 46 is rotatably provided at the rear end of the base frame 2, and the slide support frame 4A is supported slidably thereon. The projecting direction ends of the slide support frame 4A and the fixed support frame 3A are connected by a rail connection frame 6 as shown in FIG. It should be noted that the length of the end slide rail 4 is the length obtained by adding the slide length of the end slide rail 4 to the shrinkage limit dimension when the tent unit is fully contracted, and further when the end slide rail 4 is extended. This is a length including a margin for preventing the unit 10 from falling.
[0016]
Next, the rail slide device 40 that drives the end slide rail 4 will be described. As shown in FIG. 3, a rack 41 is stretched on the lower surface of the slide support frame 4A. On the other hand, a rail drive motor M <b> 2 that can rotate in the forward and reverse directions is provided at the rear portion of the base frame 2. Pinion 42a is provided at both ends of the rail drive shaft 42, and meshes with the rack 41 on the lower surface of the slide support frame 4A. The rail drive shaft 42 is provided with a relay sprocket 42b at a position slightly to the right of the center in FIG. 3A, and between the relay sprocket 42b and the motor sprocket 44 provided on the output shaft of the rail drive motor M2. A drive chain 45 is stretched.
With the above configuration, when the rail drive motor M2 rotates, the rail drive shaft 42 is driven, and the rack 41 meshing with the pinion 42a is moved laterally, whereby the slide support frame 4A and the end slide rail fixed to the slide support frame 4A. 4 slides.
[0017]
As an example, a control panel 5 for controlling the rail slide device 40 and the tent moving device 30 is provided near the rear portion of the base frame 2. The control panel 5 is connected to a rail drive motor M2 and a tent drive motor M1 which are output devices. Although not shown, limit switches as input devices are provided at a plurality of locations on the base frame 2 to detect the fully closed and fully opened positions of the tent unit 10 and the extended position of the end slide rail 4. A non-expanded position is detected. These limit switches are also connected to the control panel 5.
[0018]
The overall structure of the sliding open / close tent 1 is as described above. Next, the anti-derailing structure according to the present invention will be described. The wheel removal preventing structure includes a wheel removal preventing stopper 7 provided on the base frame 2, a stopper operating member 8 provided on the slide support frame 4 </ b> A, and a contact body 9 provided on the tent unit 10.
Hereinafter, each member will be described in detail.
[0019]
The derailment prevention stopper 7 will be described. The derailment prevention stopper 7 is formed of a metal flat plate or the like, and as shown in FIG. 8 (a), the side surface has an L-shape and is rotatable at the bent portion 7C with respect to the base frame 2. Provided. Specifically, as shown in FIG. 9D, the installation location is provided on the base frame 2 at the lower end of the rear end of the rail R with the end slide rail 4 protruding. One side long from the bent portion 7C is a stopper portion 7A, and the other short side is a lock lever portion 7B. This difference in length prevents the abutment body 9 described later from colliding when the lock lever portion 7B is raised, while the abutment body 9 is surely abutted when the stopper portion 7A is raised, and the tent unit 10 is driven. Is to stop.
[0020]
Next, the stopper operation member 8 will be described. The stopper operating member 8 is provided on the slide support frame 4A and performs an operation of moving the stopper portion 7A of the anti-derailing stopper 7 and maintains the posture of the anti-demounting stopper 7 when the stopper portion 7A appears. Accordingly, the stopper operating member 8 is set so as to be positioned above the end of the lock lever portion 7B of the derailment prevention stopper 7 when the end slide rail 4 slides out. Specifically, as shown in FIG. 11, the center of the lower end of the stopper operating member 8 is a portion 15 mm away from the upper side of the lock lever portion 7B when the slide is extended, and is 62.5 mm away from the stopper portion 7A. Located in the place. Of course, this design dimension can be modified as appropriate. For example, if the stopper operating member 8 is too close to the lock lever portion 7B, smooth rotation operation cannot be performed. It needs to be changed.
The stopper operating member 8 is composed of a rectangular metal plate or the like, and is provided by welding or the like at the rear portion of the rail R of the slide support frame 4A. The stopper operating member 8 may be implemented by attaching a roller to a contact portion as shown in FIG. 8B, for example. When implemented in such a form, the turning operation of the derailment prevention stopper 7 can be performed more smoothly.
[0021]
Next, the contact body 9 will be described. The abutting body 9 is a member that is provided in the tent unit 10 and that directly abuts against the wheel removal prevention stopper 7 when the tent unit 10 tries to run without stopping before the break of the rail R. Specifically, this also has a rectangular shape and is provided by welding or the like in front of the lower part inside the drive frame 12. As shown in FIG. 11A, the height at which the contact body 9 is provided is set to be lower than the height of the stopper portion 7A of the derailment prevention stopper 7 and higher than the height of the lock lever portion 7B. .
[0022]
The specific structure of the sliding open / close tent 1 to which the anti-derailing structure according to the present invention is applied is as described above. Next, a usage mode of the slide open / close tent 1 will be described, and then the derailment according to the present invention will be described. The operation mode of the prevention structure will be described in detail.
(1) Primary opening (shrinking the tent unit)
When opening the tent unit 10 as shown in FIG. 6A from the closed state, the tent drive motor M1 is driven by a remote control switch or the like on the control panel 5 or away from the control panel 5, and the tent unit 10 is contracted. And move backwards. As shown in FIG. 6 (b), the tent unit 10 is completely transferred to the end slide rail 4, and is placed in the rear half of the tent unit 10 and is completely contracted. When it is not necessary to completely open the tent unit 10, the stored items are loaded and unloaded in this state.
[0023]
(2) Rail slide
Next, a description will be given of the case where the upper portion of the base frame 2 is completely opened when the objects to be stored are unloaded, which is insufficient and unnecessarily merely by contracting to the primary opened state. Switch again to open completely. As a result, the rail drive motor M2 is driven, and the end slide rail 4 slides backward as shown in FIG. At this time, since the traction chain 33 is stopped, the drive frame 12 of the tent unit 10 connected to the traction chain 33 is stopped at that position, while the fixed end frame 13 is moved backward by the end slide rail 4. Be pulled. That is, in the primary opening, the drive frame 12 is pulled and released, but in this step, the end slide rail 4 is extended rearward, so that this time, the fixed end frame 13 is pulled and the tent unit 10 is slightly expanded. . As a result, when the end slide rail 4 projects rearward as shown in FIG. 6 (c), the tent unit 10 is slightly extended. At this time, a notch portion of the rail R is formed between the main body fixing rail 3 and the end slide rail 4. By setting the length of the end slide rail 4 as described above, the tent unit 10 can be It will be stretched while resting on the part slide rail 4.
[0024]
(3) Completely open
For complete opening, the extended tent unit 10 is caused to run the traction chain 33 toward the fully open side of the tent unit 10 and the drive frame 12 is pulled toward the fixed end frame 13 as shown in FIG. 6 (d). Like that. As a result, the tent unit 10 is contracted again, and all the tent units 10 are retracted onto the end slide rail 4 projecting to the rear of the base frame 2 in the end slide rail 4 and the upper part of the base frame 2 is completely opened. To do. The movement of the traction chain 33 will be described. At the time of the primary opening, the retractor 33a is located at the front of the tent unit 10 from the rear end of the base frame 2 and stops, but when fully opened, It moves from that position to the last rear end. Since the retractor 33 a is attached to the drive frame 12 of the tent unit 10, the rear side thereof is contracted and supported on the end slide rail 4 on the outer rear side of the base frame 2.
[0025]
An example of a control mode for driving the tent unit 10 and the end slide rail 4 when fully opened as described above will be described in detail. First, when the tent unit 10 is completely contracted at the time of primary release, the fully contracted state is detected by contacting a limit switch for detecting complete contraction provided on the slide support frame 4A with the drive frame 12, for example, and the tent drive motor. Stop driving M1. Further, when the end slide rail 4 protrudes to the rear of the base frame 2 at the time of rail slide and fully open, for example, a limit switch for detecting the complete extension of the end slide rail 4 detects this extended state, thereby driving the rail. The driving of the motor M2 is stopped and the driving of the tent driving motor M1 is started. Then, in a state where the tent unit 10 is completely contracted, the limit switch for detecting the complete contraction is detected, and the driving of the tent drive motor M1 is stopped.
[0026]
In the above-described embodiment, since the tent unit 10 is excellent in stability when traveling on the rail R, it waits for the end slide rail 4 to fully protrude to the rear of the base frame 2 when fully opened. The drive of the tent drive motor M1 is started and the tent unit 10 is fully retracted backward, but the drive of the tent drive motor M1 is started immediately after the drive of the rail drive motor M2 is started. The extended slide of the end slide rail 4 in FIG. 6C and the complete contraction movement of the tent unit 10 in FIG. 6D may be modified so as to be performed almost simultaneously. In this case, care is taken not to exceed the sliding speed of the drive frame 12 of the tent unit 10 than the sliding speed of the end slide rail 4. In this case, when the sliding speed of the end slide rail 4 at the time of the complete contraction causes a disadvantage that the speed at the time of primary opening becomes slow, a variable speed motor is applied as the tent drive motor M1. The speed at the time of primary opening of the tent unit 10 may be high, and the speed at the time of full opening may be low. It should be noted that the method of sliding the end slide rail 4 and the drive frame 12 of the tent unit 10 almost simultaneously can be applied when the tent unit 10 is extended as described in the next section.
[0027]
(4) Closure (extension of tent unit)
Next, a case where the fully opened tent unit 10 is closed will be described. Basically, the reverse operation of the opening operation is performed. That is, the fully contracted tent unit 10 is first extended to the vicinity of the end of the end slide rail 4 as shown in FIG. Next, the end slide rail 4 is slid and connected to the rear end of the main body fixing rail 3 as shown in FIG.
Next, by operating the remote control switch again, the tent unit 10 is extended as shown in FIG. 7D, and the drive frame 12 is moved to the front end of the base frame 2 to completely close the upper surface of the base frame 2. When the tent unit 10 does not protrude to the rear of the base frame 2 as described above, it is convenient that a large number of sliding open / close tents 1 can be accommodated in a narrow range.
[0028]
Next, an operation mode of the derailment prevention structure according to the present invention when the tent unit 10 is opened and closed as described above will be described.
(5) Preparation for preventing wheel loss
A description will be given of an aspect of preparation for preventing wheel removal when the main body fixing rail 3 and the end slide rail 4 are separated from each other completely. First, in a state in which the main body fixing rail 3 and the end slide rail 4 are connected, the stopper portion 7A of the derailment prevention stopper 7 is retracted downward as shown in FIGS. 9 (a) and 9 (b). When the end slide rail 4 is extended and extended, the stopper operating member 8 comes into contact with the lock lever portion 7B of the anti-derailing stopper 7, and the anti-derailing stopper 7 is rotated as shown in FIGS. 9 (c) and 9 (d). As a result, the stopper portion 7A appears above.
[0029]
(6) Derailment prevention release
Next, a description will be given of a release mode of the above-described wheel removal prevention state when returning from the fully open state to the primary open state. As shown in FIG. 10, when the main body fixing rail 3 and the end slide rail 4 are connected from the overhanging state of the end slide rail 4 as described above, the stopper operation is performed as shown in FIG. The member 8 comes into contact with the stopper portion 7A of the wheel removal preventing stopper 7, and the stopper portion 7A is rotated and retracted downward. Therefore, the abutment body 9 of the tent unit 10 passes over the upper part of the tent unit 10 without coming into contact with the anti-derailing stopper 7, and passes over the upper part as shown in FIG.
[0030]
(7) Abnormal operation
Next, for example, an abnormal operation in which the tent unit 10 proceeds as it is without stopping automatically as shown in FIG. . In this case, the abutment body 9 of the tent unit 10 abuts against the stopper portion 7 </ b> A of the derailment prevention stopper 7. At this time, the stopper portion 7A rotates and tries to be positioned downward. However, as shown in FIG. 11B, the stopper operating member 8 comes into contact with the lock lever portion 7B and stops its rotation. Therefore, the abutting body 9 cannot move forward from the derailment prevention stopper 7 to the gap between the rails R, and the tent unit 10 stops there and does not derail from the gap between the rails R.
[0031]
[Other embodiments]
Although the basic embodiment of the present invention is as described above, various other modifications can be made.
For example, the position at which the anti-derailing stopper 7 is provided is not only in the basic embodiment shown in FIGS. 1, 9, 10 etc., but also in the rear side of the base frame 2 as shown in FIG. It is also possible to implement. In this case, the position of the contact body 9 is also attached to the intermediate movable frame 14 behind the drive frame 12.
[0032]
Further, the anti-derailing stopper 7 can be provided on the end slide rail 4 or the slide support frame 4A. 13 (a) and 13 (b), a slide-out prevention stopper 7 is provided slidably up and down with respect to the slide support frame 4A and the end slide rail 4, and an extruding portion 51 is provided with respect to the base frame 2. It is the provided embodiment. Reference numeral 7D at the lower end of the derailment prevention stopper 7 is a guide roller, and reference numeral 7A is a stopper portion. When configured in this manner, as shown in FIG. 13B, in a state where the end slide rail 4 protrudes, the push-out portion 51 comes into contact with the derailment prevention stopper 7 so that the stopper portion 7A of the derailment prevention stopper 7 It is pushed out above the end slide rail 4. At the time of abnormal operation, the abutting body 9 comes into contact with the pushed stopper portion 7A, so that the travel of the tent unit 10 can be stopped.
[0033]
In addition, as described above, the escape prevention stopper 7 may be raised and lowered electrically in addition to the various mechanical methods. That is, using a contact lever switch, a non-contact infrared sensor, a magnet switch, or the like, it is detected that the tent unit 10 has approached the gap between the rails R, and the anti-derailing stopper 7 appears on the rails R. You may carry out to.
[0034]
Further, in the basic embodiment, the structure for moving the tent unit 10 is performed by using the tent moving device 30 fixed to the base frame 2 to pull the tent unit 10 by the traction chain 33 or the like. You may comprise so that it may provide and implement by a self-propelled type.
[0035]
In the basic embodiment, the rail slide device 40 has a structure that slides using the rack 41 and the pinion 42a. However, other known slide mechanisms such as a ball screw mechanism and a cylinder may be used as appropriate. Is possible.
[0036]
【The invention's effect】
According to the tent unit derailment prevention structure in the sliding open / close tent having the fully open structure according to claim 1, when the end slide rail 4 is separated from the main body fixing rail 3 and protrudes to the end of the base frame 2. In addition, since the tent unit 10 is provided with a derailing prevention stopper 7 for preventing the tent unit 10 from derailing from the gap between the main body fixing rail 3 and the end slide rail 4, the tent unit 10 is erroneously caused by a malfunction of the limit switch. Thus, it is possible to prevent the rail R from falling between the cuts. Therefore, it is not necessary to restore the wheel.
[0037]
According to the tent unit derailment prevention structure in the sliding open / close tent having the fully open structure according to claim 2, the derailment prevention stopper 7 has the stopper portion 7A and the lock lever portion 7B, and the end slide rail 4 side. Is provided with a stopper operating member 8 that comes into contact with the anti-derailing stopper 7 and causes the stopper portion 7A to appear or retreat and maintain the attitude of the anti-derailing stopper 7 in the appearing state. Appearing and evacuating, reliable operation, relatively low manufacturing costs, and high durability.
[0038]
According to the tent unit derailment prevention structure in the sliding open / close tent having the fully open structure according to claim 3, the derailment prevention stopper 7 has a very simple structure having an L shape, and a failure occurs. It is difficult and the operation is reliable. In addition, repairs are easy and manufacturing costs can be reduced. In particular, the stopper portion 7A and the lock lever portion 7B of the anti-derailing stopper 7 and the stopper operating member 8 are responsible for the two actions of the appearance and retraction of the stopper portion 7A and the stopper action, respectively. There is no reasonable and useless structure.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a fully closed state of a sliding open / close tent having a fully open structure of a tent unit of the present invention and a perspective view showing a fully open state.
FIGS. 2A and 2B are two types of plan views of a rail showing a state in which an end slide rail is contracted and a state in which the end slide rail projects to a base frame end.
FIGS. 3A and 3B are a perspective view, a rear view, and a side view showing the tent moving device and the rail moving device at the rear end of the base frame as viewed from the rear side of the machine frame in a fully opened state.
FIGS. 4A and 4B are two types of side views showing a stretched state of a tent frame. FIGS.
FIG. 5 is a front view showing the shutter device in a partial cross section.
FIG. 6 is an explanatory view showing stepwise how the tent unit is completely opened.
FIG. 7 is an explanatory view showing step by step how to completely close the tent unit.
FIGS. 8A and 8B are a perspective view showing a derailment prevention structure according to the present invention and a perspective view showing another embodiment of a stopper operating member. FIGS.
FIG. 9 is an explanatory view showing the movement of the derailment prevention stopper when the tent unit is fully opened.
FIG. 10 is an explanatory view showing the movement of the derailment prevention stopper when the tent unit is returned from the fully opened state to the primary opened state.
FIG. 11 shows a state in which the tent unit has stopped normally before the derailment prevention stopper when returning from the fully opened state to the primary opened state, and a state in which the tent unit derailment preventing structure according to the present invention has been activated in an abnormal operation. FIG.
FIG. 12 is an explanatory view showing another embodiment in which the installation location of the derailment prevention stopper is changed.
FIG. 13 is a partially transparent side view showing another embodiment in which the specific configuration of the tent unit derailment prevention structure according to the present invention is changed.
[Explanation of symbols]
1 Sliding open / close tent
2 Base frame
2A Bottom plate
3 Body fixing rail
3A fixed support frame
4 End slide rail
4A slide support frame
4a Movable wheel
5 Control panel
6 Rail connection frame
7 Derailment prevention stopper
7A Stopper part
7B Lock lever
7C bent part
7D guide roller
8 Stopper operation member
9 Contact body
10 Tent unit
11 Tent curtain
12 Drive frame
12a wheels
13 Fixed end frame
14 Intermediate movable frame
14a wheels
14A pillar frame
14B Lifting frame
15 Relay link rod
20 Shutter device
21 Shutter body
22 Winding drum
23 Shutter box
24 Shutter guide
25 Drive unit
26 Reinforcement
30 Tent moving device
31 Followed sprocket
32 Drive sprocket
33 Tow chain
33a retractor
34 Tent drive shaft
34a End sprocket
34b Relay sprocket
35 Bearing
36 Motor sprocket
37 Drive chain
38 Tension sprocket
40 Rail slide device
41 racks
42 Rail drive shaft
42a pinion
42b Relay sprocket
43 Bearing
44 Motor sprocket
45 Drive chain
46 Bearing roller
51 Extrusion section
M1 tent drive motor
M2 rail drive motor
R rail

Claims (3)

A base frame for placing the object to be stored, a tent unit that travels in a telescopic manner on a rail provided on the base frame, and the rail is a main body fixing rail fixed to the base frame, and the main body fixing rail And an end slide rail that extends to the end of the base frame on the extension of the body fixing rail, and the tent unit that is contracted to the projecting portion of the end slide rail is placed on the base. In a sliding open / close tent having a fully open structure in which the upper part of the frame is fully opened, when the end slide rail is separated from the main body fixing rail and protrudes to the end of the base frame, the tent unit is connected to the main body fixing rail. The anti-derailing stopper for preventing de-ringing from the gap with the end slide rail is the base frame, the end slide rail or the end slide rail. The stopper part that is provided on the slide support frame that supports the wheel and that acts as a stopper of the anti-derailing stopper appears when the end slide rail protrudes, and the end slide rail and the body fixing rail are connected. A structure for preventing a tent unit from being removed in a sliding open / close tent having a fully open structure. In addition to the stopper portion, the derailment prevention stopper has a lock lever portion for performing the appearance operation of the stopper portion, and the end slide rail or the slide support frame that supports the end portion of the stopper is not locked during the overhanging movement. The stopper comes into contact with the lever, and when the end slide rail is connected to the main body fixed rail, the stopper comes into contact with the stopper and retracts, and the posture of the anti-derailing stopper is maintained in the overhanging state. 2. A structure for preventing a tent unit from falling off in a sliding open / close tent having a fully open structure according to claim 1, wherein a stopper operating member is provided. The derailment prevention stopper has an L-shape and is provided to the base frame so as to be rotatable at the bent portion. The long side on one side from the bent portion is used as a stopper portion, and the short side on the other side is provided. The stopper operating member comes into contact with the lock lever portion of the anti-derailing stopper when the end slide rail overhangs and the stopper portion appears, and when the end slide rail is connected to the body fixing rail When the end slide rail is connected to the main body fixing rail, the stopper portion is retracted while the stopper portion is retracted, and the stopper portion is retracted. The stopper part is positioned above the lock lever part so that the stopper part does not rotate and retract in the overhanging state, while the front end of the tent frame is located at the height of the stopper part. 3. An abutting body for abutting against a derailing prevention stopper is provided at a position higher than the height of the lock lever portion so that the tent frame does not derail during a rail break. Structure for preventing the tent unit from falling off in a sliding open / close tent having a fully open structure.

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