JP2660356B2 - Fan roof switchgear - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening / closing device for a roof that can be easily combined with a link mechanism to open and close a roof such as a truck.

Conventional technology In a lorry, in order to protect the cargo in transit, the entire cargo bed may be covered by a box-shaped body made of a top and panels.However, when loading and unloading cargo, these bodies may interfere with work. It often happens. Therefore,
It has been proposed to equip the side of the body with a fan roof that can be easily opened and closed (for example, Japanese Utility Model Publication No. 56-4543).

This is provided with a pair of upper and lower fan roofs B1 and B2 forming a body on the side surface of the truck L of the truck (FIG. 13), and the fan roof B1 swings at the upper center of the body. While having a center B1a, and opening and closing the upper surface and the upper part of the side of the body upward, the fan B2 has a swing center B2a at the lower end,
Open and close the lower part of the side. The swing center is inside the roof B1
A substantially triangular rocker B that rocks in a vertical plane around B3a
3 are arranged. One end of the rocking piece B3 is connected to the connecting arm B4.
And the other end is connected to the pulley B in the middle
It is connected to the fan plate B2 via a wire B6 having 5, B5.

When the fan B2 is opened in the direction of the arrow A2 (two-dot chain line in the figure), the rocking piece B3 is driven in the direction of the arrow A3 via the wire B6, and is driven upward by the rocking piece B3. The fan roof B1 can be opened in the direction of arrow A1 via the arm B4. If the fan B2 is closed in the direction opposite to the arrow A2, each member operates in the direction opposite to the previous direction, and the roof B1 can be closed.

For similar roofs, the operation bar may be extended horizontally from the vicinity of the swing center in the opposite direction to the roof, and the rope connected to the tip of the operation bar may be pulled down to open the roof upward. Are known.

According to the related art, the wire is stretched or damaged by repeatedly opening and closing the fan roof, and in order to maintain the predetermined opening and closing performance for a long period of time, it is necessary to maintain the wire. Inspections and replacements have to be performed periodically, which is complicated. In addition, when using a rope, the lower end of the rope must be tied to an appropriate place and fixed every time the opening / closing operation of the fan roof is performed, and there is a problem that workability is poor.

Therefore, an object of the present invention is to maintain the predetermined opening / closing performance for a long period of time with almost no inspection or replacement by opening and closing the fan roof via a link mechanism in view of the problem of the related art. It is an object of the present invention to provide an opening and closing device for a fan roof which can be easily operated.

Means for Solving the Problems In order to achieve the above object, a configuration of the present invention is arranged in a storage member at an upper portion of a loading panel, and one end is connected to an inner surface of a fan roof separated from a swing center to inflate. A connecting arm that opens and closes the roof, a swinging lever that is connected at one end to the other end of the connecting arm, and is mounted to be swingable up and down with respect to the storage member, and a drive arm that is connected to the other end of the swinging lever. The swing lever has a swing center in the middle of the storage member away from the swing center of the fan roof, and the connecting arm side is housed in the storage member from the swing center and the drive arm side is the loading panel. The gist of the present invention is that the drive arm is exposed through one side of the drive arm, and the drive arm is driven via a fan plate that opens and closes vertically.

In addition, between the connecting arm and the fan roof, a rocking link is attached to the storage member so that it can swing up and down, and one end is connected to the tip of the rocking link, and the inner surface of the fan roof is separated from the rocking center. A connecting link connecting the other end is interposed, and one end of the connecting arm can be connected to the swinging link instead of connecting to the fan roof. The connection can be made so as to have a thrust angle of at least 20 degrees or more.

The swing lever and the swing link may be provided with a spring member for biasing the fan roof in the opening direction.

Further, the drive arm can be connected to the fan plate via a lower link mechanism, or can be driven via an operating lever that rotates 180 degrees up and down.

According to the configuration of the present invention, since the drive arm and the connecting arm are connected to both ends of the swing lever having the swing center at the intermediate portion, the drive arm is pulled down via the fan plate, or By pulling up, the swinging lever swings up and down, and the connecting arm moves up and down to open and close the fan roof. The swing arm is housed in the storage member on the connecting arm side, and the drive arm side is exposed on one side of the carrier panel. Therefore, the structure of the carrier panel itself is simple, and the operation of the drive arm and the swing lever is restricted. Not only allows for greater design freedom,
The connection between the drive arm and the fan plate is easy. This is because the driving plate exposed on one side of the loading panel can be directly connected to the tip of the loading plate because the lifting plate contacts the side end surface of the loading panel and closes the lower side of the loading panel. However, the one surface of the carrier panel at this time refers to one surface that does not face the carrier.

When a swinging link or connecting link is interposed between the connecting arm and the fan roof, the swing link, the connecting link, or the upper link mechanism that connects the connecting arm and the fan roof is formed to open the fan roof. The force from the connecting arm can be converted to the optimal direction and transmitted to the roof.

Note that the upper link mechanism opens and closes the fan roof via the connecting link by driving the driving arm to swing the rocking link via the rocking lever and the connecting arm. At this time, since the swing link, the connecting link, and the fan roof form a four-node rotating chain in which the swing center between the swing link and the fan roof is a fixed link, the size, weight, and opening angle of the fan roof The degree of freedom in design can be further improved with respect to changes in specifications such as the mounting position and the mounting position.
Therefore, if the articulated link is connected to the closed roof with an elevation angle of at least 20 degrees or more, the articulated link can easily generate a sufficient vertical component force to push up the roof. it can.

If a spring member is attached to the swing lever or the swing link, the operating force required for opening and closing the roof can be reduced, and the roof can be opened and closed more lightly.

When the drive arm is connected to the fan plate via the lower link mechanism, the lower link mechanism can appropriately adjust the relative movement between the fan plate and the drive arm.

In addition, if the drive arm is driven via an operation lever that rotates 180 degrees up and down instead of the fan plate, setting the branch and the point of force at an appropriate position of the operation lever makes it possible to open and close the fan roof. The operating force can be minimized. When the lower link mechanism is interposed between the drive arm and the operation lever, the direction of the force applied to the operation lever from the lower link mechanism while the fan roof is closed is set appropriately, and the operation lever is easily moved. Can be self-locked.

Embodiments Hereinafter, embodiments will be described with reference to the drawings.

Opening / closing device for fan roof (hereinafter referred to as opening / closing device at the end) 10
Are, in order from the bottom, a lower connecting link 11 and a lower swing link 12
And an upper link mechanism including a drive arm 13, a swing lever 14, a connecting arm 15, and a swing link 16 and a connecting link 17 (first link mechanism).
FIG.), A series of link mechanisms are formed as a whole. In addition, the opening and closing device 10 has a pair of left and right assembled to the front part of the carrier L corresponding to the left and right fan roofs 22 and 22 and the fan plates 23 and 23 which form the body of the truck (FIG. 2). .

In front of and behind the loading platform L, loading platform panels 21 are erected, and a channel-shaped storage member 21a that opens upward is attached to each upper end edge. Storage members 21a, 21a
A center beam 24 having engagement members 24a, 24a... On both right and left sides is provided between the storage members 21a, 21a so as to connect the central portions thereof.

Each of the fan roofs 22 includes a plate member 22a bent into an L-shaped section and a plate member 2a.
And a reinforcing member 22b that borders the peripheral edge of the center beam 24. A part of the reinforcing member 22b penetrates the engaging members 24a, 24a,. Supported. That is, the reinforcing member 22
.., the positions of the engagement members 24a, 24a,. The engaging members 24a, 24a,... May be provided with torsion springs 24b, 24b,. Note that, for each fan roof 22, the plate member 22a may be attached to the center beam 24 via a hinge (not shown) so as to be swingable.

The fan plates 23, 23 are supported swingably up and down via hinges 23a, 23a,... Attached to left and right side ends of the loading platform L, respectively.

In the closed state, the roofs 22, 22 and the roofs 23, 23 form a box-shaped body together with the front and rear loading panels 21, 21.
The upper side and the left and right sides of the bed L can be completely closed, and in the open state, both sides of the bed L can be largely opened. The opening and closing devices 10, 10 are symmetrically mounted on the left and right sides of the front loading panel 21.

The lower connecting link 11 and the lower swing link 12 constitute a lower link mechanism (FIG. 1). Lower link
One end of 11 is connected to the pin member 11a, and the other end is connected to the tip of the lower swing link 12. However, the pin member
Reference numeral 11a protrudes from the front end face of the fan 23. The lower swing link 12 is swingably attached to a lower portion of the carrier panel 21 via a fixing pin 12a, and a lower end of the drive arm 13 is connected to an intermediate portion.

The upper end of the drive arm 13 is connected to one end of the swing lever 14, and the movement near the upper end is restricted via a guide member 21b fixed to the carrier panel 21.

The swing lever 14 is formed by a stepped link rod that bends, and is swingably mounted in the middle of the storage member 21a via a fixing pin 14a that penetrates the bent portion in the middle portion back and forth. That is, the swing lever 14 can swing up and down with the fixed pin 14a in the middle part as the swing center. The other end of the swing lever 14 is connected to a swing link 16 via a connecting arm 15. The bent portion of the swing lever 14 penetrates the front side wall 21a1 of the storage member 21a, and therefore, the swing lever 14 passes through the bent portion,
The driving arm 13 is exposed to the front of the loading panel 21 and the connecting arm 15 is housed in the housing member 21a.

The swing link 16 is formed in a frame shape and has a fixing pin at the base end.
It is attached to the storage member 21a via the 16a so as to be swingable up and down. An intermediate portion of the swing link 16 is connected to the storage member 21a via a spring member 16b.

The spring member 16b includes a cylinder 16b1, a rod 16b2 that is movably inserted into the cylinder 16b1, an adjustment nut 16b3 that is screwed into a male screw at the base of the rod 16b2, and a spring member 16b1 between the tip of the cylinder 16b1 and the adjustment nut 16b3. A compression spring 16b4 is provided (FIG. 3), and the compression force of the compression spring 16b4 can be adjusted by moving the adjustment nut 16b3 forward and backward. An annular engaging portion 16b5 is formed at the distal end of the rod 16b2 to connect to the swing link 16. The cylinder 16b1 is swingably attached to the bottom surface of the storage member 21a via a bracket 16b6 (FIG. 1).

One end of the connection link 17 is connected to the tip of the swing link 16, and the other end is connected to the inner surface of the fan roof 22 away from the swing center via the 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 freely bendable, and the relative angle between the two changes according to the opening and closing of the fan roof 22.

Between the rear part of each fan roof 22 and the rear storage member 21a,
As in the front part of the roof 22, a swing link 16, an upper link mechanism comprising a connecting link 17 and a spring member 16b are provided, and a stopper chain 21a2 for regulating the opening angle of the roof 22 is provided. (Fig. 2).

Now, one of the fan roofs 22 and the fan 23 are closed (No. 4).
(FIG. 5) to the open position (FIG. 5). 4 and 5, the lower swing link 1
2, swing lever 14, fixed pin 12a, 14 of swing link 16
a, 16a, the hinges 23a, 23a of the fan plate 23, and the reinforcing member 22b on the base end side of the fan roof 22 are the swing centers of the corresponding members, and are respectively shown by black circles. . Further, the opening and closing device 10 includes a lower four-node rotating chain having a fixed link between the hinge 23a and the fixed pin 12a, and a fixed pin 16
a, an upper four-node rotating chain is formed as a link for fixing between the reinforcing members 22b, and it can be considered that the two are connected via the drive arm 13, the swing lever 14, and the connecting arm 15.

First, when the fuel plate 23 is opened in the direction of arrow K1 in FIG. 4, the lower swing link 12 is driven through the lower connecting link 11 in the direction of arrow K2 about the fixing pin 12a, whereby the drive arm
One end of the swing lever 14 is lowered via arrow 13 in the direction of arrow K3. At this time, since the fixing pin 14a is the center of the swing, the other end of the swing lever 14 rises in the direction of arrow K4, whereby the swing link 16 is connected via the connecting arm 15 to the fixing pin 16a.
About the arrow in the direction of arrow K5. Therefore, the roof 22
Swings in the direction of the arrow K6 via the connecting link 17 and stands up, and can open the upper side of the loading platform L and one side surface largely upward (FIG. 5).

At this time, the front and rear spring members 16b, 16b
The urging roof 22 can be opened lightly because it is urged in the direction in which the uprights 6 and 16 are raised, that is, in the direction in which the fanning roof 22 is opened. However, the front and rear spring members 16b, 16b may be used when the weight of the roof 22 is light or when the center beam 24 is engaged.
The torsion springs 24b, 24b ... attached to 24a, 24a ...
This may be omitted, for example, when the member is sufficiently biased in the opening direction.

On the other hand, when closing the fan roof 22, the fan 23 is closed in the direction of arrow K7 in FIG. At this time, the lower swing link 12 swings in the direction of arrow K8 via the lower connecting link 11, and both ends of the swing lever 14
9, because it moves in the K10 direction,
The swing link 16 swings in the direction of arrow K11 through the
2 can be closed in the direction of arrow K12 via the connecting link 17 (FIG. 4). When the roof 22 is closed, the front and rear swing links 16 and 16, the connecting links 17 and 17,
In addition to b and 16b, the connecting arm 15 and the connecting arm 15 side of the swing lever 14 can be compactly stored in the front and rear receiving members 21a.

Such an opening and closing device 10 may be disposed on the rear carrier panel 21 instead of being disposed on the front carrier panel 21, and when the fan roof 22 is long in the front-rear direction, etc. By disposing it on both of the carrier panels 21, the fan roof 22 can be opened and closed more smoothly. However, the swinging link 16, the connecting link 17, the spring member 16
Since b is already mounted, the rear opening / closing device 10 may be configured by adding missing members including the connecting arm 15, the swing lever 14, and the driving arm 13.

Another embodiment The connecting link 17 of the upper link mechanism is a closed roof
It is preferable that the connection is made so as to have a large thrust angle θ of at least 20 degrees or more with respect to 22 (FIG. 6). That is, the roof
Assuming that the force applied to the connecting link 17 to release the lift 22 is the push-up force P, the force effective to open the roof 22 is the vertical component Px of the push-up force P and the vertical component Py of the vertical component Py. Component force Py, and Py = Psinθ. Therefore, the vertical component Py is
The larger the thrust angle θ, the larger the value (however, θ <90
(Degree)), it is possible to reduce the force required for the opening operation of the fan roof 22, especially the operation for starting the opening.

Note that the upper limit of the push-up angle θ is determined by the required space factor and each member from the swing lever 14 to the connecting link 17,
22 is restricted by the opening angle α at the time of opening (No. 7
Figure). Therefore, as a practical push-up angle θ, 20 ≦ θ ≦
About 50 (degrees) is preferable, and generally 30 ≦ θ ≦ 50
(Degree) is very preferred.

The spring member 16b may be connected via an offset plate 16c instead of directly connecting the rod 16b2 to the swing link 16 (FIGS. 6 and 7). By increasing the mounting height h of the rod 16b2, the spring member 16b is
When the opening of the swing link 16 is started, a larger rotational moment can be given to the swing link 16.

Note that the push-up angle θ is such that the connecting portion between the swing link 16 and the connecting link 17 is disposed below the position of the fixed pin 16a of the swing link 16 (FIG. 8), and the swing link 16 is inclined. Thereby, it can be further increased. At this time,
A large push-up angle θ can be easily realized without impairing the squaw factor.

The roof 22 is moved up and down 18
Opening and closing can be driven independently of the fan plate 23 via the operation lever R that rotates 0 degrees (FIG. 9). Operation lever R
It is only necessary to have a swing center Ra serving as a fulcrum at an intermediate portion, provide a powerful grip Rb at one end, and connect the other end to the lower end of the drive arm 13.

When the grip Rb is located above (solid line in the figure), the operation lever R can pull down the drive arm 13 to open the fan roof 22, and when the grip Rb is located below (see FIG. The drive arm 13 can be pushed upward to close the fan roof 22 (two-dot chain line). It is preferable that the operation lever R be locked when the roof 22 is closed. That is, the bracket L1 protruding from the carrier L
And a pair of lock guides L2, L2
2. After turning the operating lever R between the L2 (two-dot chain line in the figure), lock the operating lever R via the appropriate lock pin L4 inserted into the holes L3, L3 of the lock guides L2, L2. Can be.

The operation lever R may be connected via a lower link mechanism including a lower connecting link 11 and a lower swing link 12 instead of directly connecting to the drive arm 13 (FIG. 10). The operating lever R has a swing center Ra at the lower end, and by connecting the lower connecting link 11 to the intermediate portion, the fan roof 22 can be closed when the grip Rb is located at the upper side. At this time, the operation lever R is moved when the action line of the lower connecting link 11 (the two-dot chain line in the same figure) passes inside the swing center Ra, so that the fan roof 22 is closed. The self-locking state can be maintained. That is, the operating lever R is moved in the direction of opening the fan roof 22 (arrow K13 in FIG.
Direction), it rotates easily, but when the force P1 from the fan roof 22 acts on the lower connecting link 11, it receives a rotational moment in the direction opposite to the arrow K13 direction,
There is no easy rotation.

The opening and closing device 10 omits the upper link mechanism including the swing link 16 and the connecting link 17 and directly connects the connecting arm 15 to the roof 22.
(Fig. 11). However, the spring member
The swing lever 16b is connected to the swing lever 14 via the offset plate 16c, and is disposed so as to urge the connecting arm 15 side of the swing lever 14 upward. The overall structure can be significantly simplified.

Note that, in accordance with this embodiment, the arrangement of the swing link 16, the connecting link 17, the fixing pin 16a, and the spring member 16b in the rear storage member 21a may be changed (twelfth embodiment).
Figure).

INDUSTRIAL APPLICABILITY The present invention is not limited to a lorry, and can be widely used as a freight vehicle of a railroad or a switching device for windows of buildings. That is, since the object to be opened and closed and the operation unit can be connected via a simple series of link mechanisms, the object to be opened and closed, such as a fan roof or a window, can be easily and reliably opened and closed.

Effects of the Invention As described above, according to the present invention, a swing lever that is vertically swingably mounted on a storage member, a connecting arm connected to both ends of the swing lever, and a drive arm are combined. By forming a series of link mechanisms as a whole and connecting them to the inner surface of the roof, wire-like bodies such as wires are not used. Since the opening and closing performance can be maintained and a complicated operation such as cleaning the lower end of the rope is not required, there is an excellent effect that high workability can be easily realized.

Since the connecting arm is connected to the inner surface of the fan roof, which is far from the center of swing, the required operating force when opening the fan roof is reduced, and the fan roof is stable even when it is opened and against strong winds. In addition, since the swing lever accommodates the connecting arm side in the storage member and exposes the drive arm side to one side of the carrier panel, there is no restriction on the operation of the drive arm and the swing lever. There is also a practically excellent effect that the degree of freedom in design can be increased.

[Brief description of the drawings]

1 to 5 show an embodiment, FIG. 1 is an explanatory perspective view of the entire structure, FIG. 2 is an explanatory view of a use state, FIG. 3 is an enlarged sectional view of a main part, and FIGS. It is operation | movement explanatory schematic diagram. 6 and 7 show another embodiment, FIG. 6 is a diagram corresponding to FIG. 4, and FIG. 7 is a diagram corresponding to FIG. 8 to 12 show different embodiments, respectively. FIG. 8 is an enlarged view of a main part corresponding to FIG. 4, FIG. 9 is a perspective explanatory view of a main part, and FIG. Explanation drawing of main part, Fig. 11 is 4
FIG. 5 is a schematic diagram for explaining the operation corresponding to FIG. 5, and FIG. 12 is a schematic diagram of a main part. FIG. 13 is an operation explanatory view showing a conventional example. R: Operating lever θ: Push-up angle 10: Opening / closing device for the roof 13: Drive arm 14: Swing lever 15: Connecting arm 16: Swing link 16b: Spring member 17: Connecting Link 21 ... Carrier panel 21a ... Storage member 22 ... Fan roof 23 ... Fan

Claims (7)

(57) [Claims] Claims: 1. An arrangement in a storage member at an upper part of a loading panel,
A connecting arm that connects one end to the inner surface of the fan roof that is separated from the swing center to open and close the fan roof, and one end is connected to the other end of the connecting arm, and is attached to the storage member so that it can swing up and down. And a drive arm connected to the other end of the swing lever. The swing lever has a swing center in the middle of the storage member away from the swing center of the fan roof. Then, the connecting arm side is housed in the housing member from the swing center, and the drive arm side is exposed on one side of the carrier panel, and the drive arm is driven via a fan plate that opens and closes up and down. An opening / closing device for a fanned roof. 2. A swing link between the connecting arm and the fan roof, the swing link being attached to the storage member so as to be swingable up and down, and one end connected to a tip of the swing link, and from a swing center. A connecting link for connecting the other end to the inner surface of the remote roof is interposed, and one end of the connecting arm is connected to the swing link instead of connecting to the fan roof. 2. The opening and closing device for a fan roof according to claim 1. 3. The opening and closing of the fan roof according to claim 2, wherein the connecting link is connected to the fan roof in a closed state so as to have a rising angle of at least 20 degrees or more. apparatus. 4. An opening and closing device for a roof according to claim 1, wherein said swing lever is provided with a spring member for biasing said roof in an opening direction. 5. An opening / closing device for a fanned roof according to claim 2, wherein a spring member for urging the fanned roof in an opening direction is attached to the swing link. 6. The first driving mechanism according to claim 1, wherein said drive arm is connected to a fan plate via a lower link mechanism.
Item 6. An opening and closing device for a fan roof according to any one of Items 5 to 5. 7. An opening / closing device for a fanned roof according to claim 1, wherein said drive arm is driven via an operation lever which rotates up and down 180 degrees.