JP2000280939A - Gate supporting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gate supporting device having a highly durable and simple structure. SOLUTION: A gate supporting device is provided with a gate, one end thereof being pivotally supported by an under carriage 1, a middle pillar 3, one end thereof being pivotally supported by the under carriage 1, a means for fastening the gate and the middle pillar 3, a stopper 4, one end thereof being pivotally supported by the middle pillar 3 to maintain the fallen state of the middle pillar 3, a locking mechanism incorporated in the stopper 4 to lock the stopper 4 to the undercarriage 1 and support the middle pillar 3 in the stopper 4 in its locked state to prevent the falling of the middle pillar 3 to the outside of the under carriage 1, a guiding arm 27, one end being pivotally supported by the other end of the stopper 4, a roller 28 provided in the other end of the guiding arm 27 to slide following the pivotal movement of the stopper 4, and a bracket 7 fixed to the under carriage 1 and having a guiding slope for sliding the roller 28. While the middle pillar 3 falls to the outside of the under carriage 1, the stopper 4 and the guiding arm 27 are folded together to be guided by the roller 28, and then the stopper 4 is pulled into the lower part of the under carriage 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilt support device, and more particularly to a track side and rear tilt support device.

[0002]

2. Description of the Related Art Some commercially available heavy-duty trucks and trailers have a side support which is divided, a middle pillar is arranged between the divided side supports, and the middle pillar is detachably attached to a chassis. To fully open the cargo bed, release the tension between the divided side tilt and the middle pillar, and then remove the middle pillar from the box attached to the chassis.

[0003]

However, according to the tilting support device which requires the above-mentioned operation for removing and inserting the center pillar, it is necessary to remove the center pillar when fully opening the carrier.
There is a risk of forgetting the center pillar in the place where it was removed. In addition, especially in a huge truck or the like, since the center pillar is also enlarged, it is more difficult to remove and insert the center pillar.

An object of the present invention is to provide a tilt supporting device which can stably maintain a tilted inverted state and has a simple structure with high durability.

[0005]

According to a first aspect of the present invention, a tilt support device is provided at one end of a guide arm pivotally supported by a stopper and at the other end of the guide arm. It has sliding means for sliding, and guide means fixed to a base or chassis and guiding the sliding of the sliding means. Then, as the center column is pivoted outward from the base, the stopper and the guide arm are folded together, and the stopper is drawn into the lower part of the base.

In this tilt supporting device, when the tilt is fully opened, the stopper is drawn inward so that the stopper does not hinder the unloading operation. Also,
Since the means connected to the stopper (pivot support) and supporting the other side of the stopper slides along with the pivoting of the center column, a large load is prevented from being applied to this means, especially during the operation of the center column. As a result, the durability of the device is improved. In addition, by locking the sliding means at a predetermined position, it is possible to prevent the stopper from falling into the base (in the opposite direction). In addition, since it is sufficient to fix only the guide means to the base, the mountability of the device is improved.

According to a second aspect of the present invention, there is provided a tilting support device, wherein a lock mechanism for supporting the center pillar on the stopper has an operating portion rotated and an engagement movable in the stopper with the rotating operation of the operating portion. And a unit. A retreating surface is formed on both sides in the horizontal direction in the engaging portion, and a space wider in the horizontal direction than a space between the retreating surfaces is formed on one side of the retreating surface in the moving direction of the engaging portion. Protrusions having wide portions extending on both sides in the horizontal direction are fixed to the base. The wide portion protrudes from between the two receding surfaces, and the wide portion rear surface and the both receding surfaces abut against each other along the horizontal direction, whereby the stopper is engaged with the base in an inverted state via the lock mechanism. Is stopped. On the other hand, the rotation of the operating portion causes the engaging portion and the protruding portion to move relative to each other, so that the wide portion provided in the protruding portion is positioned in a wide space in the horizontal direction, so that the locking mechanism and the protruding member are engaged. Is released.

In this tilt support device, the stoppers are engaged with the base in an inverted state when the surfaces come into contact with each other in the horizontal direction. Therefore, compared with the case where the surfaces come into contact with each other in the vertical direction. In addition, a large moment (moment toward the inside of the base) acts on the rotation tangent direction of the stopper in the inverted state along the vertical direction, and the inverted state of the stopper is stably maintained. In addition, since the contact surfaces are provided on both sides in the horizontal direction, rattling of the lock mechanism in the horizontal direction in the engaged state is suppressed. As a result, the durability of the device is improved.

[0009] In a third aspect of the present invention, the tilt support device is provided with a window for allowing the protrusion to enter around an outer surface of the center post, the position being opposed to the protrusion which can be engaged with the lock mechanism in the hanging state. Are formed. Further, the window is formed so as to be higher than the base in the vertical direction when the center pillar is in an inverted state.

In this tilt supporting device, the entire structure including the tilt supporting device and the base is made compact.
Furthermore, in the inverted state of the center pillar, the window is located sufficiently higher than the base, so that the projection that can be engaged with the window and the lock mechanism is not at the same height position, so that dust and dust can be removed through the window. Water is prevented from flowing in and entering the vicinity of the protrusion. As a result, the durability of the device is improved.

[0011] In a fourth aspect of the present invention, the tilt support device has a lock mechanism built in the stopper. The lock mechanism moves or moves within the stopper in accordance with the rotating operation of the operating portion and the protrusion that is fixed to the base and enters the stopper. And an engagement portion to be released. In this manner, the lock mechanism releasably locks the stopper with respect to the base in an upright state, and supports the center column with the stopper so that the center column does not fall out of the base in this locked state. Can be done. The locking mechanism includes, in particular, a pivot that is pivotally supported at one end with respect to the base, a center post that is pivotally supported at one end with respect to the base, a means for connecting the pivot and the center post, And a stopper that is pivotally supported with respect to the center column and supports the center column by inverting the center column so that the center column is maintained in an inverted state.

According to this tilt support device, since the lock mechanism main body is built in the stopper, especially when this device is applied to the tilt of the truck, the lock mechanism is obstructed at the time of the operation of the center pillar or the unloading of the load. And the possibility of interference with others is low. Furthermore, since the locking device is covered by the stopper component, the possibility of damaging the locking mechanism is low, and the durability is improved. Further, in this tilt support device, since the lock mechanism is built in the stopper, the configuration of the entire device is compact, and the mounting operation is also facilitated. In addition, processing to be performed on the base for mounting the device is reduced.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described.

In the preferred embodiment of the tilt support device of the present invention, each component is configured as follows. A roller is attached to the other end of the guide arm via a pin as a means for sliding along with the pivotal movement of the stopper. As a means or a guide surface for guiding such a sliding means, an inclined surface is formed on a bracket for attaching the tilting support device to the base.

In a preferred embodiment of the tilt supporting device of the present invention, a means is provided on the guide means for locking the sliding means from sliding outward of the base when the center pillar is in an inverted state, This locking means prevents the stopper from falling down into the base.

Preferably, the lock mechanism has a handle having one end protruding from the other end of the stopper and having an intermediate portion pivotally supported with respect to the stopper; and one end between the one end of the handle and a pivot point with respect to the stopper. A first intermediate lever pivotally supported; a second intermediate lever having one end pivotally supported at the other end of the first intermediate lever; a hook engaging lever pivotally supported at the other end of the second intermediate lever; Resilient means which is resiliently mounted to act between the hook engaging lever and the stopper, and exerts a moment acting on the handle in the rotational operation direction such that the locked state is maintained in the locked state of the stopper. . On the other hand, as a means for engaging with the locking device, a hook means (projecting portion) that protrudes outward from the base and releasably engages with the hook engaging lever is provided.

Also preferably, the locking mechanism includes a handle connecting lever pivotally supported at one end inside the stopper;
A handle having one end protruding from the other end of the stopper, an intermediate portion pivotally supported by the other end of the handle connecting lever, and a hook provided at the other end; a connecting lever releasably engaging the hook with one end thereof A hook engaging lever whose one end is pivotally supported at the other end of the connecting lever; and a resiliently mounted so as to act between the hook engaging lever and the stopper. Elastic means for exerting a moment acting in the rotational operation direction such that the state is maintained. On the other hand, as a means for engaging with the locking device, a hook means (projecting portion) that protrudes outward from the base and releasably engages with the hook engaging lever is provided.

In a preferred embodiment of the tilt supporting device of the present invention, a bracket for mounting the tilt supporting device and a projection engaging with the lock mechanism are simultaneously fixed to a base (undercarriage). Further, the tilt supporting device according to the present invention can be easily configured to be attached from the outside.

The tilt support device of the present invention, in a preferred embodiment thereof, is provided between divided side tilts, or
It is provided at the corner where the tilts intersect and supports the center pillar, side tilt, rear tilt, and the like.

In a preferred embodiment, the tilt supporting device of the present invention includes a well-known locking mechanism using a so-called shrimp-type handle and a coil spring, a clasp and a locking bar, or other means as a means for connecting the center column and the tilt. Known means can also be used.

In a preferred embodiment, the tilt supporting device of the present invention is mounted on a vehicle chassis such as a truck or a trailer, or on a base on which a tilting door is mounted.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further clarify the embodiment of the present invention described above, an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an external front view of a tilt support device according to an embodiment of the present invention. Referring to FIG.
The pivots 2 and 2 have one ends rotatably attached thereto. One end of the center pillar 3 is pivotally connected to a bracket 7 fastened to the chassis 1 via hinges 8 and pins 9. Stopper 4
Is pivotally supported at an intermediate portion of the center pillar 3 via a hinge 10 and a pin 11. A mechanism for retracting the stopper 4 is incorporated inside the bracket 7. Stopper 4
Has a built-in lock mechanism 5, and the lock mechanism 5
, The pivoting of the stopper 4 and further the pivoting of the center post 3 are locked. On both sides of the upper part of the center pillar 3,
Connecting device (tightening means) for connecting the shaft and the center pillar 3
Is provided. Therefore, the lock mechanism 5 and the hook 22
2 and 2 and middle pillar 3 by the engagement and connecting devices 6 and 6
, The rotation of the swings 2, 2 is eventually stopped.

[Lock Mechanism] Next, the structure of the lock mechanism 5 will be described in detail. FIG. 2 is a front view showing a state where the stopper is removed from the apparatus shown in FIG. 1, and shows a locked state of the stopper.

Referring to FIG. 2, in the lock mechanism 5, the intermediate portion of the handle 12 is pivotally connected via a pin 14 to a handle mounting plate 13 fixed to the inner plate portion (4b in FIG. 6) of the stopper 4. Supported. A handle formed at one end of the handle 12 projects from the other opening of the stopper 4. On the other hand, a three-pronged portion is formed at the other end of the handle 12. The pin 14 is inserted through two of the three-pronged portions on both sides, and the pin 1 is inserted into one end at the center.
6, one end of the first intermediate lever 15 is pivotally supported. The first intermediate lever 15 extends upward in the drawing in the stopper 4, and the other end of the first intermediate lever 15 pivotally supports one end of a second intermediate lever 18 via a pin 17. The second intermediate lever 18 extends inside the stopper 4 upward in the drawing, and
At the other end of the intermediate lever 18, a frame portion of one end of a square annular hook engagement lever 19 is pivotally supported via a pin 20. Inside the other end of the hook engaging lever 19, a gate-like stepped portion that is retracted toward the inner plate portion 4b of the stopper 4 (see FIG. 6) is formed. The gate-shaped step portion has receding surfaces 19a, 19a on both sides in the horizontal direction, and a space wider in the horizontal direction than the space between the receding surfaces 19a, 19a is provided below the receding surfaces 19, 19 in the drawing. Are formed.

On the other hand, the undercarriage 1 is located between the retreating surfaces 19a, 19a.
The hook 22 fixed to the bracket 7 (see FIG. 6) by fixing means (bolts, nuts) 33 protrudes. A wide portion extending in the horizontal direction is formed at the tip of the hook 22. Referring to FIG. 9 in particular, in the locked state, the horizontal retreating surfaces 19a, 19a of the hook engaging lever 19 and the wide side rear surfaces 22a, 22a of the hook 22 on both horizontal sides extend along the horizontal direction. By the contact, the hook engagement lever 19 and the hook 22 are engaged with each other. Thereby, the chassis 1 of the stopper 4
Falling outside is locked.

Further, from the intermediate portion of the handle mounting plate 13 and one end frame portion of the square annular hook engaging lever 19, cylindrical spring supports extend so as to be close to each other. The spring 21 is supported by these spring receivers at both ends thereof, so that the stopper 4
Is interposed in a compressed state between the handle mounting plate 13 and the hook engaging lever 19. In the locked state of the stopper 4, the spring 21 urges the hook engagement lever 19 upward in the drawing, so that the first intermediate lever 15 is urged upward via the second intermediate lever 18. (See FIG. 6). However, in this locked state, a straight line connecting the pivot point (pin 17) of the first intermediate lever 15 with the second intermediate lever 18 and the pivot point (pin 16) of the first intermediate lever 15 with the handle 12 is also used. Since the pivot point (pin 14) is located on the left side in the figure, the handle 12 is eventually urged by the spring 21 to rotate counterclockwise in the figure. As a result, the engagement state between the hook engagement lever 19 and the hook 22 is stably maintained.

FIG. 3 is a partially enlarged view of the lock device shown in FIG. 2, showing the unlocked state. Referring to FIG. 3, the hook engaging lever 19 is moved upward in FIG. 2 from the locked state of the stopper 4 (see FIG. 2), so that the retreating surfaces 19a, 19a and the wide portion rear surfaces 22a, 22a are provided.
Of the hook 22 is released, and the wide portion of the hook 22 is
The hook engagement lever 19 and the hook 22 are disengaged by escaping through a wide space in the horizontal direction below 9a and 19a in the figure.

[Stopper Retraction Mechanism] Next, a mechanism for retracting the stopper 4 into the upper inside lower part of the chassis 1 will be described in detail. FIG. 4 is a side view of the device shown in FIG. FIG. 5 is an operation diagram of FIG. FIG.
It is a VI-VI sectional view. FIG. 7 is a sectional view taken along line VII-VII of FIG. FIG. 8 is a sectional view taken along line VIII-VIII of FIG. FIG.
FIG. 7 is a sectional view taken along line IX-IX of FIG.

Referring particularly to FIGS. 4 and 5, in this stopper retracting mechanism, the inside of the other end of the inner plate portion 4a (see FIG. 6) provided in the stopper 4 extends in a direction substantially orthogonal to the direction in which the stopper 4 extends. The bearing 25 protrudes toward the chassis 1 side. The bearing part 25 has a pin 26
One end of the guide arm 27 is pivotally supported via the. The guide arm 27 extends inward of the chassis 1 along the bottom surface of the bracket 7 when the stopper 4 is in the locked state (the tilted state). The bottom surface of the bracket 7 is a slope slightly inclined upward in the figure from the horizontal direction toward the inside of the chassis 1. On the other hand, a slit 32 is formed at the center of the bottom surface of the bracket 7 to allow the stopper 4 and the guide arm 27 to pivot.

Rollers 28 are mounted on both sides of the other end of the guide arm 27 via pins 29 (see FIGS. 5 and 9), and together with the other end of the guide arm 27 as the guide arm 27 pivots. The roller 28 moves while rotating on the bottom surface of the bracket 7. Further, ribs 31 and 3 for roller locking are provided in the middle of the bottom surface of the bracket 7 with a slit 32 interposed therebetween.
1 is formed. In the locked state, the roller 28 and the guide arm 27 are prevented from moving outward from the chassis 1 by the roller 28 being locked to the roller locking ribs 31, 31. As a result, the stopper 4 is prevented from falling into the chassis 1.

Referring to FIGS. 1 to 9, the operation or operating method of the tilt support device when both the tilts 2, 2 and the center column 3 are pivoted to open the full loading platform will be described. I do.

First, referring to FIG. 1, the connecting devices 6 and 6 which are tightening the pivots 2 and 2 and the center column 3 are respectively released.
The arms 2, 2 are pivoted outward from the chassis 1 (turned outward).

Next, referring to FIG. 6, when the stopper 4 is locked, the handle 1 is
2 is urged to rotate counterclockwise in the figure. Therefore, the engagement state between the hook engagement lever 19 and the hook 22 is stably maintained. Then, when the operator rotates the handle 12 clockwise in the drawing beyond a predetermined angle range, the biasing force of the spring 21
2 rotates clockwise in the figure. Therefore,
Thereafter, the handle 12 can be rotated clockwise in the figure with a relatively small operating force. As a result, as shown in FIG. 7, the engagement state of the hook engagement lever 19 and the hook 22 is released, The pivoting of the stopper 4 and the center column 3 is allowed. The above release operation of the lock mechanism 5 can be performed with one touch.

Next, referring to FIGS. 4 and 5, when the operator pivots the center post 3 in the counterclockwise direction in the drawing (when it is tilted outward), the stopper pivotally supported by the center post 3 is turned on. 4 also slides rightward in the figure while pivoting counterclockwise in the figure with the pin 11 as a fulcrum. As the stopper 4 pivots and moves, the other end of the guide arm 27 is
The guide arm 27 and the stopper 4 are moved on the bottom surface of the bracket 7 toward the roller locking surface 30.
Are drawn inward and upward under the chassis 1 so as to be folded together. Then, referring to FIG. 5, in a state where middle pillar 3 is hung, roller 28 abuts roller locking surface 30, and movement of guide arm 27 and the like is prevented. In the pivoting operation of the center column 3, since the weight of the stopper 4 and the center column 3 is supported by the bottom surface (slope) of the bracket 7 via the guide arm 27 and the like, the center column 3 may suddenly fall down. Has been prevented. In this way, the swings 2 and 2 (see FIG. 1) and the center pillar 3 are both suspended, and the cargo bed is fully opened. To return the center pillar 3 to the inverted state, the above-described operation may be performed in reverse.

[Embodiment 2] Next, a tilt supporting apparatus according to Embodiment 2 of the present invention will be described. In the description of the second embodiment, it is assumed that the elements of the device according to the second embodiment have substantially the same shape and function as the elements of the device according to the first embodiment. Basically, the same names as those in the first embodiment are used, and the same reference numerals are given. In the following description, differences between the second embodiment and the first embodiment will be mainly described, and points having the same configuration and function and operating similarly will be described.
To avoid repetition of the description, the description of the first embodiment can be referred to as appropriate.

FIG. 10 is a side sectional view of a tilt support device according to a second embodiment of the present invention. Referring to FIG. 10, in this tilt supporting apparatus, the outer surface of the center post 36 is
6, a window 36a is formed around the position facing the hook (projection) 22 and the hook 22 is attached to the window 36a.
To enter the inside of the center pillar 36. Therefore, as compared with the apparatus according to the first embodiment (see FIG. 5), the middle pillar 36 can be moved closer to the chassis 1 in a state where the middle pillar 36 is hung. Thus, the outer width of the vehicle can be reduced, and the inner width, that is, the bed capacity can be increased accordingly.

In the inverted state of the center pillar (indicated by the phantom line in FIG. 10), the window 36a is located at a position higher than the base surface of the chassis 1. This prevents dust and water from entering the gap between the hook 22 and the fixing means 33 through the window 36a.

[Embodiment 3] Next, a tilt supporting apparatus according to a third embodiment of the present invention will be described. In the description of the third embodiment, when the elements of the device according to the third embodiment have substantially the same shape and function as the elements of the device according to the first embodiment, Basically, the same names as those in the first embodiment are used, and the same reference numerals are given. In the following description, differences between the third embodiment and the first embodiment will be mainly described. Regarding points having the same configuration and function and operating similarly,
To avoid repetition of the description, the description of the first embodiment can be referred to as appropriate.

FIG. 11 is a front view showing a state in which the stopper is removed from the tilt supporting device according to the third embodiment of the present invention. FIG. 12 is an XII-XII sectional view of the device shown in FIG. FIG. 13 is an operation diagram of FIG. FIG.
FIG. 14 is an operation diagram following FIG. 13.

First, the lock mechanism of the tilt support device will be described. Referring to FIGS. 11 and 12, in the lock mechanism 50, an intermediate portion of the handle 55 is pivotally supported on one end of a forked handle connecting lever 56 via a pin 57. The other end of the handle connecting lever 56 is pivotally supported via a pin 63 by a bearing provided below the handle mounting plate 58. A handle formed at one end of the handle 55 protrudes from the other opening of the stopper 54. The handle 55 extends upward in the figure, and has a hook 5 at the other end.
5a are formed. Above the handle 55 in the figure,
A connecting lever 59 extends. At one end of the connecting lever 59, a bridge portion 59a is provided. Stopper 54
In the locked state of FIG.
a. The other end of the connecting lever 59 has a pin 6
1, a square annular hook engaging lever 60 is pivotally supported. The hook engaging lever 60 has retreating surfaces 60a, 60a similar to those of the first embodiment.
The hook engaging lever 60 and the hook 22 are brought into contact by the
Are engaged, and the locked state of the stopper 4 is maintained.

At the other end of the handle mounting plate 58, a spring receiving plate portion 58a extending in the horizontal direction when the stopper 4 is locked is formed. A spring 62 is compressed and interposed between the spring receiving plate portion 58a and one end of the hook engaging lever 60. In the locked state of the stopper 54, the handle 55 is urged upward in the figure via the hook engagement lever 60 and the connection lever 59. In the locked state of the stopper 54, the handle 55 is urged to rotate in the counterclockwise direction in the drawing as in the first embodiment.

Next, with reference to FIGS. 11 to 14, the operation or operating method of the tilt support device will be described. With particular reference to FIG. 12, in the locked state of the stopper 54,
From the line connecting the bridge portion 59a and the pin 57,
Is located on the left side in the figure, and the handle 55 is biased by the spring 21 to rotate counterclockwise in the figure.

Referring to FIG. 13 in particular, when the handle 55 is rotated clockwise by a predetermined angle in the figure, the handle 55 is urged by the spring 21 to rotate clockwise in the figure. Therefore, the handle 55 can be rotated with a relatively small operation force. The handle 55 is shown in FIG.
When the rotation position shown in FIG.
Is rotated counterclockwise in the drawing to release the engagement between the hook portion 55a and the bridge portion 59a, and the hook portion 55a is positioned below the bridge portion 59a in the drawing as shown in FIG. At this time, the engagement between the hook engagement lever 60 and the hook 22 has been released. Thus, the release of the lock device 50 is completed. Thereafter, by the same operation as in the first embodiment, the tilt and the center column 3 are pivoted, and the loading platform is fully opened.

[0045]

The tilt supporting device according to the present invention can maintain the tilt more stably in the inverted state.
In addition, the tilt support device of the present invention has a simple structure with high durability.

[Brief description of the drawings]

FIG. 1 is an external front view of a tilt support device according to an embodiment of the present invention.

FIG. 2 is a front view showing a state where a stopper has been removed from the apparatus shown in FIG. 1;

FIG. 3 is a partially enlarged view of the lock device shown in FIG. 2;
This shows an unlocked state.

FIG. 4 is a side view of the device shown in FIG.

FIG. 5 is an operation diagram of FIG. 4;

FIG. 6 is a side view taken along the line VI-VI of FIG. 2;

FIG. 7 is a side view taken along the line VII-VII of FIG. 2;

FIG. 8 is a sectional view taken along the line VIII-VIII in FIG. 5;

FIG. 9 is a sectional view taken along line IX-IX of FIG. 6;

FIG. 10 is a side sectional view of a tilt support device according to a second embodiment of the present invention.

FIG. 11 is a view illustrating a tilt support device according to a third embodiment of the present invention.
FIG. 4 is a front view showing a state where a stopper is removed.

FIG. 12 is a sectional view taken along line XII-XII of FIG. 11;

FIG. 13 is an operation diagram of FIG.

FIG. 14 is an operation diagram following FIG. 13;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chassis 2 Tilt 3 Middle pillar 4 Stopper 4a Outer plate part 4b Inner plate part 4c Locking rib 5 Lock mechanism 6 Connecting device 7 Bracket 8 Hinge 9 pin 10 Hinge 11 pin 12 Handle 13 Handle mounting plate 14 Pin 15 First intermediate Lever 16 pin 17 pin 18 second intermediate lever 19 hook engaging lever 19a retreat surface 20 hook 21 spring 22 hook 22a wide portion back surface 25 bearing portion 26 pin 27 guide arm 28 roller 29 pin 30 roller locking surface 31 roller locking Rib 32 Slit 33 Fixing means 36 Middle pillar 36a Window 37 Hinge 50 Lock mechanism 54 Stopper 54a Outer plate 54b Inner plate 55 Handle 55a Hook 56 Handle connecting lever 57 Pin 58 Handle mounting plate 58a Spring receiving plate Portion 59 Connection lever 59a Bridge portion 60 Hook engagement lever 61 Pin 62 Spring 63 Pin

Claims (4)

[Claims] A pivot that is pivotally supported at one end with respect to a base; a center post that is pivotally supported at one end with respect to the base; a means for connecting the tilt and the center post; A stopper pivotally supported at one end with respect to the center pillar, and supporting the center pillar by inverting so as to maintain the inverted state of the center pillar; and operating means for inverting the stopper with respect to the base. A lock mechanism that allows the stopper to support the center pillar so that the center pillar does not fall out of the base in the locked state, and one end of the lock mechanism is pivotally supported by the stopper. A guide arm, a sliding means provided at the other end of the guide arm, and sliding with the pivoting of the stopper; a guiding means fixed or integrated with the base to guide the sliding of the sliding means. And having the middle column facing outward from the base. As pivoting Te, said stopper and the guide arm and is folded together while the stopper is gradually drawn into the base lower inward tilting support device according to claim. 2. A means is provided on the guide means for stopping the sliding means from sliding toward the outside of the base when the center pillar is in an inverted state. The tilt support device according to claim 1, wherein the stopper is prevented from falling down into the base. 3. A jaw pivotally supported at one end with respect to a base; a center post pivotally supported at one end with respect to the base; a means for connecting the tilt and the center post; A stopper that is pivotally supported at one end with respect to the center column and supports the center column by inverting so as to maintain the inverted state of the center column; and operating means built in the stopper, On the other hand, the stopper is releasably locked in an inverted state,
A locking mechanism for supporting the middle pillar on the stopper so that the middle pillar does not fall out of the base in the locked state; and An engagement portion movable in the stopper in accordance with the rotation of the operation portion, wherein receding surfaces are formed on both sides in the horizontal direction in the engagement portion; A space wider in the horizontal direction than the space between the two receding surfaces is formed on the side, and a protrusion having a wide portion extending on both sides in the horizontal direction is fixed or integrated with the base. The wide portion protrudes from between the two receding surfaces, and the wide portion rear surface and the both receding surfaces abut against each other along the horizontal direction, so that the stopper comes into contact with the base via the locking mechanism. To be locked in an inverted state, By the rolling operation, the engaging portion and the protruding portion move relative to each other, and the wide portion provided in the protruding portion is located in the wide space in the horizontal direction. The tilting support device is disengaged. 4. A jaw pivotally supported at one end with respect to a base, a center post pivotally supported at one end with respect to the base, means for connecting the tilt and the center post, A stopper pivotally supported on the center column and supporting the center column by inverting so as to maintain the inverted state of the center column; and an operating unit built in the stopper, which is rotated and operated. An engaging portion that moves in the stopper in accordance with the rotation operation of the operating portion, and is fixed or integrated with the base and engaged or disengaged with the protrusion that is inserted into the stopper. The stopper is releasably locked to the base in an inverted state, and the stopper is attached to the stopper so that the center pillar does not fall out of the base in the locked state. And a lock mechanism for supporting, wherein the outer surface of the middle pillar is in a hanging state. A window that allows entry of the protruding portion is formed around a position facing the protruding portion.In the inverted state of the center pillar, the window is at a position higher in the vertical direction than the base, A tilt support device characterized by the following.