JPH04126630A - Opening/closing device of fanning roof - Google Patents

Abstract

PURPOSE:To maintain the expected opening/closing performance continuously in a long term without complicated periodic check or replacement by combining a rocking lever, a connecting arm and a driving arm, together, forming a serial link mechanism as a whole, and connecting the link mechanism to a fanning roof. CONSTITUTION:A fanning plate 23 is opened, and a lower portion rocking link 12 is driven around a fixing pin 12a through a lower portion connecting link 11 to release a fanning roof 22 and the fanning plate 23 on one side. Then, one end portion of a rocking lever 14 lowered through a driving arm 13. Besides, other end portion of the rocking lever 14 is lifted because a fixing pin 14a acts as a center of the rocking. As a result, rocking link 16 rocks around a fixing pin 16a through a connecting arm 15. Accordingly, the fanning roof 22 rocks and stands through a connecting link 17 to release upper and side faces of a carrying platform L largely upward. At this time, front and rear spring members 16 b are energized in a direction for erecting the rocking link 16, so that the fanning roof 22 can be opened by a slight action.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an opening/closing device for a raised roof of a freight vehicle, etc., which is formed by combining link mechanisms and is capable of reliably opening and closing a raised roof of, for example, a freight vehicle. Regarding.

Conventional technology In order to protect the cargo being transported, the entire loading platform of a conventional truck is sometimes covered with a box-shaped body made of a canopy or panels. It often gets in the way.

Therefore, it has been proposed that a fan roof that can be easily opened and closed is attached to the side of the body (for example,
Publication No. 3).

This vehicle is equipped with a pair of upper and lower fanned roofs B1 and fanned plates B2, which are arranged on the side of the loading platform of a freight vehicle and form the body (Fig. 13).The fanned roof B1 is located at the upper center of the body. The fan plate B2 has a swing center Bla at the lower end and opens and closes the upper surface of the body and the upper part of the side surface upward, while the fan plate B2 has a swing center B2a at the lower end and opens and closes the lower part of the side surface. Furthermore, a substantially triangular swing piece B3 that swings in a vertical plane around a swing center B3a is disposed inside the fan roof B1. One end of the swing piece B3 is connected to the fan roof B1 via a connecting arm B4, and the other end is connected to a pulley B5 in the middle.
, B5 is connected to the fan plate B2 via a wire B6 having wires B5.

Now, when the fan plate B2 is opened in the direction of the arrow A2 (two-dot chain line in the figure), the swinging piece B3 is rotationally driven in the direction of the arrow A3 by the wire B6, and the connecting arm B4, which moves upward, moves the fan roof. B1 is opened in the direction of arrow A1. If the fan plate B2 is closed by swinging in the direction opposite to the arrow A2, each member can be operated in the opposite direction to the previous time to close the fan roof Bl.

In addition, for a similar fanned roof, an operation bar extending horizontally from near the center of swing in the opposite direction to the fanned roof is integrally attached.
It is also known that a rope is connected to the tip of the operating bar, and by pulling the rope down, the roof can be opened upward.

Problems to be Solved by the Invention When using the conventional technology, the wires are prone to stretching and damage due to repeated opening and closing of the fan roof, so in order to maintain the desired opening and closing performance over a long period of time, it is necessary to There was a problem in that the wires had to be regularly inspected and replaced, which was complicated. In addition, ropes have the problem of poor workability, as the lower end must be tied to a suitable location each time the rope is operated, regardless of whether the roof is opened or closed. .

Therefore, in view of the problems of the prior art, an object of the present invention is to open and close the fan roof via a link mechanism,
To provide a fan roof opening/closing device capable of maintaining desired opening/closing performance over a long period of time without requiring almost any inspection or replacement, and having excellent workability.

Means for Solving the Problems The structure of the first invention according to this application to achieve the above object includes a connecting arm disposed on the upper part of the loading platform panel for opening and closing the fan roof, and one end connected to the connecting arm. The gist thereof is to include a swinging lever that can swing vertically around a swinging center of the intermediate portion, and a drive arm that is connected to the other end of the swinging lever.

Further, the swing lever may be provided with a spring member that biases the fanned roof in the opening direction.

The configuration of the second invention includes: an upper link mechanism disposed on the upper part of the cargo platform panel for opening and closing the fan roof; The gist thereof is to include a drive arm that connects to one end of the swing lever, and a connecting arm that connects the other end of the swing lever and the upper link mechanism.

The upper link mechanism may include a swinging link that is swingably attached to the top of the loading platform panel, and a connecting link that connects the swinging link and the fanned roof, and in this case, the connecting link is in the closed state. At least 20
They may also be connected with a dimensional thrust angle.

A spring member may be attached to the swing link to bias the fanned roof in the opening direction.

The drive arm can be connected to the fan plate via a lower link mechanism, and can also be driven via an operating lever that rotates in the vertical direction. Furthermore, a lower link mechanism may be interposed between the drive arm and the operating lever.

Effect: According to the configuration of the first invention, the drive arm and the connecting arm are connected to both ends of the swing lever having a swing center in the middle, so the drive arm can be pulled down or pulled up. As a result, the swinging arm swings up and down, and the connecting arm moves up and down to open and close the fan roof.

When a spring member is attached to the swing lever, the driving force can be assisted by the spring member, so that the opening operation of the fan roof can be made easier.

According to the second invention, in contrast to the configuration of the first invention, since an upper link mechanism is provided between the connecting arm and the raised roof, the upper link mechanism is used to open the raised roof transmitted from the connecting arm. It is possible to convert the force in the optimal direction and transmit it to the fan roof.

When the upper link mechanism consists of a swinging link and a connecting link, by driving the drive arm, the swinging link can be swung through the swinging lever and the connecting arm, and this swinging operation is , is transmitted to the fan roof via the connecting link. At this time, the swinging link, the connecting link, and the fanned roof form a so-called four-section rotating chain in which the center of swing between the swinging link and the fanned roof is assumed to be a fixed link, so the size and weight of the fanned roof are , the degree of freedom in design can be greatly improved with respect to changes in specifications such as opening angle and mounting position. Therefore, for the closed fan roof, at least 2
If the connecting links are connected with an upthrust angle above 0 degrees,
The force transmitted from this articulation link to the raised roof can have a vertical component sufficient to push up the raised roof.

By attaching a spring member to the swing link, the operating force required when opening and closing the fan roof can be further reduced, and the fan roof can be opened and closed more easily.

When the drive arm is connected to the fan plate via the lower link mechanism, the drive arm can be driven and the fan roof can be opened and closed by opening and closing the fan plate.

That is, the fan roof can be opened and closed in conjunction with the fan plate.

Furthermore, when driving the drive arm via the operating lever, by setting the fulcrum and the point of force at appropriate positions on the operating lever, the operating force when opening and closing the fan roof can be minimized. It is possible.

When installing a lower link mechanism between the drive arm and the operating lever, set the direction of the force applied from the lower link mechanism to the operating lever while the fan roof is closed so that the operating lever self-locks. It is easy to do.

Example Examples will be described below with reference to the drawings.

Fan roof opening/closing device (hereinafter simply referred to as opening/closing device) 10
In order from the bottom, the lower link mechanism includes a lower connecting link 11 and a lower swinging link 12, a drive arm 13, a swinging lever 14, a connecting arm 15, and a swinging link 1.
6 and an upper link mechanism consisting of a connecting link 17 (FIG. 1), forming a series of link mechanisms as a whole. The opening/closing device 10.10 is connected to each pair of fanned roofs 22.22 and fanned plates 2 forming the body of the truck.
3.23, it is assembled at the front of the loading platform (Fig. 2).

Loading platform panels 21.21 are erected at both front and rear ends of the loading platform, and channel-shaped storage members 21a, 21a that open upward are attached to the upper edges thereof. Between the storage members 21a, 21a, there are engaging members 24a on both left and right sides.
24a... The center beam 24 includes the storage member 2.
1 a % 21 a are horizontally strung so as to connect each center part.

Each fanned roof 22 is composed of a plate material 22a bent into an L shape and a reinforcing member 22b that borders the peripheral edge of the plate material 22H.
By penetrating through the engaging members 24a s 24 a... on one side, the whole is swingably supported. The engaging members 24a, 24a, . . . may be provided with torsion springs 24b, 24b, . In addition, each fanned roof 22 may have a plate 22a attached to the center beam 24 via a hinge or the like (not shown) so as to be openable and closable.

The fan plates 23.23 are swingably supported via hinges 23a, 23a, . . . attached to both left and right ends of the loading platform.

In the closed state, the fan roof 22.22 and the fan plate 23.23 form a box-shaped body together with the front and rear loading platform panels 21.21, and cover the top and left and right sides of the loading platform. It can be completely closed, and in the open state, both sides of the cargo platform can be left wide open.

The opening/closing devices 10.10 are assembled symmetrically to each other on both left and right sides of the front loading platform panel 21.

The lower connecting link 11, which constitutes the lower link mechanism together with the lower swinging link 12, has one end connected to the pin member 11a (FIG. 1), and the other end connected to the tip of the lower swinging link 12. . However, the pin member 11a is
It is provided protrudingly from the front end of 3. In addition, the lower swing link 1
2 is swingably attached to the loading platform panel 21 via a fixing pin 12a, and the lower end of the drive arm 13 is connected to the intermediate portion thereof.

The drive arm 13 has its upper end connected to one end of the swing lever 14, and its movement in the horizontal direction near the upper end is restricted by a guide member 21b fixed to the loading platform panel 21.

The swing lever 14 is formed by a bent stepped link rod, and is swingably attached to the storage member 21a via a fixing pin 14a that passes through a bent portion in the intermediate portion in the front-rear direction. That is, the swing lever 14 is configured to swing in the vertical direction with the fixing pin 14a in the intermediate portion as the center of swing. The other end of the swing lever 14 is connected to a swing link 16 via a connecting arm 15.

Note that the bent portion of the swinging lever 14 passes through the front side wall 21al of the storage member 21a, and therefore, the swinging lever 14, with this bent portion as a boundary, the drive arm 13 side is connected to the front side of the loading platform panel 21. The connecting arm 15 side is exposed to the side, and the connecting arm 15 side is housed in the storage member 21a.

The swing link 16 is formed into a frame shape, and is swingably supported inside the storage member 21a via a fixing pin 16a at its base end. An intermediate portion of the swing link 16 is connected to the storage member 21a via a spring member 16b.

The spring member 16b is connected to the cylinder 16b1 and the cylinder 16.
rod 16b2 movably inserted into b1, and rod 1
Adjustment nut 16b3 screwed into the male thread at the base end of 6b2
and a compression spring 16b4 interposed between the tip of the cylinder 16b1 and the adjustment nut 16b3 (Fig. 3),
The compression force of the compression spring 16b4 is adjusted by moving the adjustment nut 16b3 back and forth. Note that an annular engagement portion 16b5 for connecting to the swing link 16 is formed at the tip of the rod 16b2, and the cylinder 1
6b1 is connected to the storage member 21a via the bracket 16b6.
It is swingably attached to the bottom of the (Figure 1).

One end of the connecting link 17 is connected to the upper end of the swing link 16, and the other end is connected to the inner surface of the fanned roof 22 via a bracket 17a. That is, the swing link 16 and the connecting link 17 that constitute the upper link mechanism are connected to each other so as to be flexible, and the relative angle between them changes according to the opening and closing of the fanned roof 22.

Between the rear part of each fan roof 22 and the rear storage member 21a, there is an upper link mechanism consisting of a swing link 16 and a connecting link 17 similar to those attached to the front part of the fan roof 22, and a spring member. 16b and a stopper chain 21a2 that regulates the opening angle of the fanned roof 22 (FIG. 2).

Now, move one fan roof 22 and fan plate 23 to the closed position (fourth
Let us consider the case of opening from the open position (Fig. 5) to the open position (Fig. 5). In addition, in FIGS. 4 and 5, each fixing pin 1 of the lower swing link 12, swing lever 14, and swing link 16 is
2a, 14a,]-6a, and the hinge 23a of the fan plate 23,
23a... and the reinforcing member 22b on the base end side of the fanned roof 22
is a fixed rocking center for these members, and is indicated by a black circle.

The opening/closing device 10 includes a lower four-section rotating chain in which the hinge 23a and the fixed pin 12a are considered as fixed links, and the fixed pin 1.
6a and the reinforcing member 22b are connected to the upper four-section rotating chain, which is regarded as a fixed link, by a drive arm 13, a swing lever 14, and a connecting arm 15.

First, when the fan plate 23 is opened in one direction as shown by the arrow in FIG. One end of the swinging lever 14 via the arm 13
Descend in three directions according to the arrows. The swinging lever 14, whose one end is lowered in the three directions indicated by the arrows, has the fixed pin 1.4a as its center of swing, and the other end thereof is raised in the four directions indicated by the arrow, thereby causing the connecting arm 15 to move upward. Through the connecting link 16, the swinging roof 22 swings in five directions as shown by the arrow around the fixed pin 16a, and the fanned roof 22 swings in six directions as shown in the arrow through the connecting link 17 to stand upright. (Figure 5), the top and one side of the loading platform can be opened wide upwards.

At this time, since the front and rear spring members 16b, 16b are biased in the direction of raising the swing link 16.16, that is, in the direction of opening the fan roof 22, the fan roof 22 can be opened with a light action. I can do it.

However, the front and rear spring members 16b, 16b are
When the weight of the engaging member 24 of the center beam 24 is light,
Torsion springs 24b, 24b attached to a, 24a...
This can be omitted if, for example, the fan roof 22 is sufficiently urged in the opening direction.

On the other hand, when closing the fan roof 22, the fan plates 23 are closed in seven directions as indicated by the arrows in FIG. At this time, the lower swing link 12 swings in the 8 directions shown by the arrows via the lower connecting link 11, and both ends of the swing lever 14 move in the 9 directions shown by the arrows via the drive arm 13, and the KIO side moves in the same direction. Because I do,
As a result, the swing link 16 swings in the direction of arrow K11 via the link arm 15, and therefore the link 17
The fan roof 22 can be closed in the direction of the arrow Ki2 (FIG. 4). In addition, when the fanned roof 22 is closed, the front and rear swinging links 16.16, the connecting links 17.17, the spring members 16b, 16b, the connecting arm 15, and the half of the swinging lever 14 on the connecting arm 15 side are It can be compactly stored in the front and rear storage members 21a, 21a.

Such an opening/closing device 10 may be arranged on the rear loading platform panel 21 instead of being installed on the front loading platform panel 21,
Further, in the case where the fanned roof 22 is formed long in the front-rear direction, opening and closing operations of the fanned roof 22 can be performed even more smoothly by disposing it on both the front and rear loading platform panels 21 and 21. However, since the rear loading platform panel 21 is already equipped with the swinging link 16, the connecting link 17, and the spring member 16b, the rear opening/closing device 1o includes the connecting arm 15, the swinging lever 14, and the drive arm. It is sufficient to additionally install the missing parts including 13.

Another Embodiment The connecting link 17 of the upper link mechanism is preferably connected with the raised roof 22 in the closed state at a large upward angle θ of at least 20 degrees (FIG. 6). That is, if the force applied to the connecting link 17 in order to open the fanned roof 22 is a push-up force P, then the force that effectively acts to open the fanned roof 22 is the push-up force P equal to the horizontal component force Px. Vertical force P
It is the vertical component Py when decomposed into y, and Py=Ps
It is given by inθ. Therefore, the vertical component Py increases as the thrust angle θ increases (however, θ is 90 (
), the force required for opening the fanned roof 22, especially for the initial opening operation, can be reduced.

Note that the upper limit of the uplift angle θ is regulated by the space factor required for each member from the swing lever 14 to the connecting link 17, the opening angle α when the fanned roof 22 is opened, etc. (see Fig. 7). ). Therefore, it is preferable that the practical thrust angle θ is at least 20 degrees and 50 degrees or less.
- In terms of quantity, 30 degrees or more is extremely preferred.

Instead of directly connecting the rod 16b2 to the swing song 16, the spring member 16b may be connected via an offset plate 16c (FIGS. 6 and 7). By increasing the mounting height h of the rod 16b2, the amount of opening of the fan roof 22 can be increased.

At the beginning, the spring member 16b is able to impart a larger rotational moment to the swing link 16.

Note that the thrust angle θ is the angle between the swinging song 16 and the connecting link 17.
This can be further increased by arranging the connecting portion of the swing link 16 below the position of the fixing pin 16a of the swing link 16 (FIG. 8) and tilting the swing link 16.

At this time, a large thrust angle θ can be easily achieved without impairing the space factor.

The fanned roof 22 can also be opened and closed independently by the operating lever R without being interlocked with the fanned plate 23 (FIG. 9). The operating lever R has a swing center Ra that serves as a fulcrum in the middle part.
It is sufficient to have a grip Rb at one end that serves as a point of effort, and to connect the other end directly to the lower end of the drive arm 13 in a freely rotatable manner.

The operating lever R is activated when the grip Rb is located upward (
When the grip Rb is positioned downward (the solid line in the figure), the drive arm 13 can be pulled downward to open the fan roof 22, and when the grip Rb is positioned downward (the double-dashed line in the figure), the drive arm 13 can be pushed upward. , the fan roof 22 can be closed.

In addition, when closing the fanned roof 22, it is preferable to lock the operating lever R, for example, by attaching a pair of lock guides L2 to a bracket L1 protruding from the loading platform.
After fixing L2 and turning the operating lever R between them (
This can be done by inserting a suitable lock pin L4 into the holes L3 and L3 of the lock guides L2 and L2.

Instead of being directly connected to the drive arm 13, the operating lever R may be connected via a lower link mechanism consisting of a lower connecting link 11 and a lower swinging link 12 (FIG. 10).
. If the operating lever R has a swing center Ra at the lower end and connects the lower connecting link 11 to the middle part thereof, the fan roof 22 can be closed when the grip Rb is positioned upward. In addition, at this time, the operating lever R is
By making the line of action of the lower connecting link 11 (two-dot chain line in the figure) pass through the inside of the swing center Ra, the fan roof 2
During the closure of 2, it can be maintained in a self-locking state. That is, when the operating lever R is intentionally operated in the direction of opening the fanned roof 22 (in the direction indicated by the arrow 13 in the figure), although it rotates easily, This is because the acting force P1 applies a rotational moment in the direction opposite to the 13 direction to the arrow.

In the opening/closing device 10, the upper link mechanism consisting of the swing link 16 and the connecting link 17 may be omitted, and the connecting arm 15 may be directly connected to the fanned roof 22 (FIG. 11). however,
The spring member 16b is connected to the swing lever 14 via the offset plate 16c, and is arranged so as to bias the connecting arm 15 side of the swing lever 14 upward. The overall structure can be significantly simplified.

In addition, corresponding to this embodiment, the swinging link 16, the connecting link 17, and the fixed bin 16a1 in the rear storage member 21a are
The arrangement of the spring member 16b may be changed (12th
figure).

The opening/closing device 10 can be applied not only to freight cars but also to railroad freight vehicles and the like, and can also be widely used as an opening/closing device for windows of buildings. That is, since the opening/closing object and the operating section can be connected through a simple link mechanism, reliable opening/closing operations can be performed on general opening/closing objects including fanned roofs, windows, and the like.

As described in detail, according to the first invention of this application,
A swing lever with a swing center in the middle, a connecting arm and a drive arm connected to both ends of the swing lever are combined to form a series of link mechanisms, and by connecting this to the fan roof, the wire Unlike when using raw materials such as, there is no risk of stretching or damage even after repeated use, so it can be used continuously over a long period of time without complicated periodic inspections or replacements. The desired opening/closing performance can be maintained, and since there is no need for complicated work such as arranging the lower end of the rope, there is an excellent effect that high workability can be achieved.

According to the second invention, by further combining the upper link mechanism, there is an excellent effect that the degree of freedom in design with respect to changes in the specifications of the raised roof can be greatly improved.

[Brief explanation of drawings]

Figures 1 to 5 show an embodiment, where Figure 1 is a perspective view of the overall configuration, Figure 2 is an explanatory diagram of the state of use, Figure 3 is an enlarged sectional view of main parts, and Figures 4 and 5 are It is a schematic diagram explaining an operation. 6 and 7 show other embodiments, with FIG. 6 being a diagram corresponding to FIG. 4, and FIG. 7 being a diagram corresponding to FIG. 5. 8 to 12 show different embodiments,
Figure 8 is an enlarged view of the main parts equivalent to Figure 4, Figure 9 is a perspective explanatory view of the main parts, Figure 10 is an explanatory view of the main parts equivalent to Figure 4, and Figure 11 is equivalent to Figures 4 and 5. FIG. 12 is a schematic diagram for explaining the operation. FIG. 13 is an operation explanatory diagram showing a conventional example. R... Operating lever θ... Thrust angle 10... Folding roof opening/closing device 13... Drive arm 14... Rocking lever 15... Connecting arm 16... Rocking link 16b. ...Spring member 17...Connection link 21...Load panel 22...Fan roof 23...Fan plate

Claims (1)

[Scope of Claims] 1) A connecting arm disposed on the upper part of the loading platform panel to open and close the fan roof, and one end connected to the connecting arm and swinging in the vertical direction around the center of swing in the middle part. possible swing lever,
A drive arm connected to the other end of the swing lever. 2) The opening/closing device for a raised roof according to claim 1, wherein the swing lever is provided with a spring member that biases the raised roof in the opening direction. 3) An upper link mechanism disposed at the top of the cargo platform panel to open and close the fan roof, a swinging lever that can swing vertically around a center of swing in the middle, and one end of the swinging lever. An opening/closing device for a raised roof, comprising: a connecting drive arm; and a connecting arm connecting the other end of the swing lever and the upper link mechanism. 4) The upper link mechanism is comprised of a swinging link that is swingably attached to the upper part of the cargo platform panel, and a connecting link that connects the swinging link and the fanned roof. Opening/closing device for fanned roof as described in section. 5) The opening/closing device for a raised roof according to claim 4, wherein the connecting link is connected to the raised roof in a closed state with a raised angle of at least 20 degrees. 6) The opening/closing device for a raised roof according to claim 4 or 5, wherein the swing link is provided with a spring member that biases the raised roof in the opening direction. 7) The fan roof opening/closing device according to any one of claims 1 to 6, wherein the drive arm is connected to the fan plate via a lower link mechanism. 8) The first aspect of the present invention is characterized in that the drive arm is driven via an operating lever that rotates in the vertical direction.
The opening/closing device for a raised roof according to any one of Items 6 to 6. 9) The fan roof opening/closing device according to claim 8, wherein a lower link mechanism is interposed between the drive arm and the operating lever.