JPH04146384A - Closing device for door panel of vehicle - Google Patents

Abstract

PURPOSE:To simplify the fixing and releasing operations of lock by a method in which an operation handle to open or close a tight mechanism and a coupling bolt by an interlocking part is provided on the outside of a door panel, and concurrent switching operation is made by the one operation handle. CONSTITUTION:A tight mechanism 26, a coupling bolt 27, and an interlocker 28 for coupling different clamping objects are provided in a door panel 3, and an operation handle 29 to open or close these through the interlocker 28 is provided to the outside of the panel 3. A case 34, a slide frame 35 to receive the action of the interlocker 28 reciprocally supported on the case 34, and a tight piece 33 for come-in and out operation supported on a cam mechanism 36 are provided. The piece 33 and the frame 35 are concurrently moved on the final end of stroke of the slide frame 35 and the panel 3 and a clamping object are pulled to each other by the tight mechanism 26. The door panels 3 can thus be exactly closed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a closing device for a door panel provided on a vehicle, such as a sliding door or a sliding door for opening and closing the cargo compartment of a truck.

[Conventional technology]

Normally, the sliding door is attached to the loading platform via a hinge so that it can swing open and close, and in order to maintain the closed state, there are lever link type fasteners on both sides of the sliding door, such as the A so-called "shrimp metal fitting" type closing device is provided, such as the pull-type lever seen in Publication No. 61-244677.

[Problem to be solved by the invention]

The shrimp-type closure is sufficient to maintain the closed position, but since the sliding door is pulled and fixed along its face wall, it tends to rattle in the thickness direction and generate noise when the door is driven. In addition, it is difficult to maintain airtightness in the cargo compartment of vehicles such as refrigerated vehicles that do not want outside air to enter, and their use is generally limited to cargo trucks.

Even if you use shrimp-type closing devices, installing a large number of them will help secure the sliding door firmly. However, in this case, there are disadvantages such as a lot of effort is required to open and close the closing devices, and a large number of closing devices are exposed on the outer surface of the sliding door, resulting in an unsightly appearance.

There are trucks that raise and lower the side frames of the loading platform to open and close them, but in this case, the weight of the side frame must be borne by the closing device when the guard is closed, and in addition, vertical inertial force acts on the closing device when the truck is running. Therefore, there was a need for a closing device that could more securely fix the side frame.

An object of the present invention is to provide a door panel suitable for locking vehicle door panels, which can be tightened by drawing the door panel relatively to the object to be fastened, and which can tighten and secure multiple locations at once. The objective is to obtain a closing device with excellent versatility.

Another object of the present invention is to provide a closing device that can securely lock a door panel that is raised and lowered to open and close without rattling.

[Means to solve the problem]

The closing device of the present invention includes a tight mechanism 26 and an engagement bolt 27 for engaging different fastening objects inside the door panel 3, and an interlocking member 28 connected to these.
An operating handle 29 for opening and closing the tight mechanism 26 and the engagement bolt 27 via an interlocking member 28 is provided on the outer surface of the door panel 3. a slide frame 3 that is reciprocably supported by and takes over the operation of the interlocking member 28;
5, is supported by the slide frame 35 via a cam mechanism 36, and is operated to move in and out by the cam mechanism 36 into an operating position in which it protrudes to the outer surface of the door panel 3, and a standby position in which it retracts into the inner surface of the door panel 3. The cam mechanism 36 is configured to convert the reciprocating movement of the slide frame 35 into a protruding and retracting displacement of the tight piece 33. The tight piece 33 is provided near the end of the operating stroke of the slide frame 35. The tight mechanism 36 moves together with the slide frame 35 to pull the door panel 3 and the object to be fastened together.
be configured.

[Effect]

The reason why the tight mechanism 26 and the engagement bolt 27 are provided inside the door panel 3 is to simultaneously fix the door panel 3 to different objects to be fastened, for example, the loading platform 1 and the wing 5, to strengthen the closing holding force, and to tighten the upper and lower parts. This is to make it possible to resist external forces in both the front and rear and left and right directions. , to prevent it from rattling or to keep it airtight.

The tight mechanism 26 is configured so that the tight piece 33 moves in and out of the door panel 3 and moves together with the slide frame 35 from the operating position to perform tight operation by fastening the engagement bolt 27 that is worked at the same time. engage the target in advance;
This is to perform tight operation with the door panel 3 partially fixed and positioned.

〔Effect of the invention〕

In the closing device of the present invention, the door panel 3 can be simultaneously fixed to different objects to be fastened by the tight mechanism 26 and the engagement bolt 27, and the door panel 3 can be relatively pulled and moved by the tight mechanism 26 to the object to be fastened. Since it can be tightly fixed, the door panel 3 can be firmly fixed without wobbling in the closed position. If necessary, the door panel 3 can be operated tightly to close the opening opened and closed by the door panel 3 in an airtight manner.

Since the tight mechanism 26 and the engagement bolt 27 can be switched and operated at the same time using one operating handle 29, the door panel 3 can be easily locked or unlocked, and the door panel 3 can be easily locked and unlocked when handling cargo. Can be opened and closed quickly. Furthermore, since the members other than the operating handle 29 are arranged inside the door panel 3, the parts exposed on the outside can be kept to a minimum of dust and the appearance can be improved.

After the engagement bolt 27 is engaged in advance and the door panel 3 is partially fixed and positioned, the tight mechanism 26 is engaged with the object to be fastened to tighten the door panel 3, that is, the engagement is performed sequentially. Therefore, when tightening and fixing different parts, each securing operation can be performed smoothly without any trouble, and the pulling operation of the tight mechanism 26 causes a slight deviation in the engagement posture of the engagement bolt 27, By making the engagement force stronger, the door panel 3 can be reliably closed. Therefore, according to the present invention, it is possible to obtain a highly versatile closing device that can be applied to various types of vehicle door panels and can be reliably locked.

The door panel 3 that is raised and lowered to be opened and closed is more likely to move back and forth, up and down, and left and right than other door panels that open and close. However, according to the closing device of the present invention, the door panel 3 It can be firmly fixed without rattling, and the weight of the door panel 3 is supported by either the engagement bolt 28 or the tight mechanism 26.
Furthermore, since the inertial force and external force during traveling can be effectively absorbed, the door panel 3 can be reliably and firmly closed and fixed without rattling.

[First Embodiment] Figures 1 to 9 show a first embodiment in which a closing device according to the present invention is applied to a door panel of a truck bed.

In Fig. 3, numeral 1 is the loading platform of the truck, and 2 is the loading platform 1.
3 is a side frame (door panel) that is raised and lowered to open and close along the pillar 2.

Lifting mechanisms for raising and lowering the side frame 3 are disposed inside and above the front and rear columns 2, respectively. The upper part of the side frame 3 is covered with a wing 5 having an inverted letter-shaped cross section, and the wing 5 is operated by flipping upward with an operating cylinder 6.
By lowering the side frame 3, the sides of the cargo compartment can be completely opened. In order to maintain the closed state of the side frame 3, closing devices are provided at three locations on the front and rear of its outer surface.

The side frame 3 consists of a frame body 7 that covers the side surface of the cargo compartment, an abutment wall 8 fixed to the lower surface of the frame body 7, and an idling roller 9 disposed on the front and rear end walls of the frame body 7. The frame body 7 is guided and supported in a vertically movable manner by guide frames 1O provided on the front and rear columns 2.
It can be moved up and down into a closed position in which the frame body 7 covers the side surface of the cargo compartment, and an open position in which the upper edge of the frame body 7 is lowered to the height of the cargo platform 1. As shown in FIG. 4, in the closed position, the abutment wall 8 comes into contact with a cushion material 11 attached to the lower surface of the loading platform 1, and is further engaged and held by a locking pin 12 fixed to the loading platform 1. The locking pins 12 and the holes 13 that engage with the bins 12 are provided at a plurality of locations along the longitudinal direction of the side frame 3.

In FIG. 4, the elevating mechanism consists of an electric cylinder 15 and a transmission member that transmits the output operation of the electric cylinder 15 to the side frame 3, each of which is assembled to an elevating frame 16 to form a single unit. The electric cylinder 15 uses the motor 17 as a drive source, transmits its rotational power to the screw mechanism via a reduction gear group and a torque limiter, and converts the rotational output into vertical linear reciprocating motion by the screw mechanism to generate an output shaft. 15a to leave.

The transmission member is a binion-rack mechanism that doubles the operating stroke of the electric cylinder 15, a connecting rod 18 provided between this mechanism and the side frame 3, a spring 19, a turnbuckle 20, and the above mechanism is integrated into a unit. It consists of a rack frame 21 and the like. A movable rack 22 and a fixed rack 23 are mounted facing each other on the left and right ends of the rack frame 21, and these racks 22 and 23 and the output shaft 15
The pinion 24 attached to the pinion a constitutes a binion rack mechanism.

When the side frame 3 is in the closed position, the lower end of the movable rack 22 is located near the upper end of the fixed rack 23, and when the pinion 24 is lowered from this state along the fixed rack 23, the movable rack 22 moves to the pinion. It moves downward by the total amount of the downward movement and rotational movement of 24.

In FIGS. 1 and 2, the closing device includes a tight mechanism 26 disposed near the inner upper end of the side frame 3, an upper retaining bolt 27, an interlocking member 28 that connects these in a freely interlocking manner, and a side frame 3. 3, and includes an operation handle 29 for simultaneously operating the tight mechanism 26 and the engagement bolt 27 via an interlocking member 28. Operation handle 29
When the lock is rotated in the direction of the arrow from the state shown in FIG. It is switched to engage with the engagement fitting 31 of the loading platform 1, and is further tightly fixed.

5 to 7, the tight mechanism 26 includes a case 34 embedded and fixed in the side frame 3, a slide frame 35 installed between the opposing walls of the case 34, and this slide frame 3.
It is composed of a tight piece 33 that is operated to move in and out at 5, a cam mechanism 36 provided between the slide frame 35 and the tight piece 33, and the like.

The case 34 has a U-shaped cross section, and the opposing wall and the fixed pin 37 installed between both walls work together to guide and support the slide frame 35 between the upper and lower mounting seats 34a so that it can only move vertically. are doing.

The slide frame 35 consists of a frame body with a U-shaped cross section, and its upper end is connected to the interlocking member 28. An opening 39 is provided in the lower part of the end wall of the frame 35 for allowing the engagement claw 33a of the tight piece 33 to enter and exit.

The tight piece 33 is made of a vertically long thick plate material, and has a hook-shaped engagement claw 33a integrally protruding from a lower end portion of its outer end surface. The engaging claw 33a is provided with an inclined surface 33b for pulling the engaging tool 31, and slide bins are provided at two locations near the base end and near the top end of the plate surface in a state that passes through the plate surface from side to side. 40 is fixed. The slide bin 40 is
The slide frame 35 is supported by an L-shaped guide groove 42 formed on the opposite wall of the case 34 in a state where it engages with an F-shaped cam groove 41 provided on the opposite wall of the case 34 . 40 slide bins each
Spacers are attached to both sides of the tight piece 33, sandwiching the tight piece 33 therebetween.

The cam mechanism 36 includes the slide bin 40 and the cam groove 41.
The tight piece 33 is operated to move in and out in response to the vertical movement of the slide frame 35. Specifically, the slide bin 40 is operated inward and outward using the inclined groove portion 41a provided at the upper end of the cam groove 41, and the tight piece 33 is moved in and out. The cam groove 41 has an inclined groove part 41a and a vertical groove part 41b continuous to the lower end of the inclined groove part 41a.
It also serves as a slide groove to be guided by. In other words, the fixed bin 37 guides the slide frame 35 up and down via the upper vertical groove 41b.

The guide groove 42 provided in the case 34 prevents the slide bin 40 from moving together with the slide frame 35 due to the component of the operating force of the cam groove 41 when the slide bin 40 is exposed and retracted, and also prevents the tight piece 33 protruding from the case 34 from sliding. It is provided to move downward along with the frame 35. The former effect is achieved by the horizontal grooves of the L-shaped guide groove 43, and the latter effect is achieved by the longitudinal grooves.

In FIG. 1, the interlocking member 28 includes a binion 44 that is rotated by an operating handle 29, an upper rack 45 and a lower rack 46 that move up and down in response to the rotational force of the binion 44, and each rack 45, 46 and an engagement bolt. 27 and slide frame 35
The rotation of the operating handle 29 is controlled by a pinion 44 and both upper and lower racks 45 and 45.
At 46, the operation is changed to an up-and-down operation, and the engagement bolt 27 and the tight mechanism 26 are operated in the upside-down direction.

Next, the operation of the tight mechanism 26 will be mainly explained.

When the operating handle 29 is at the upper end unlocked position, the slide frame 35 is located at the upper end of the case 34 as shown in FIG. 8, and the tight piece 33 is retracted inside the slide frame 35. There is. Furthermore, the slide bin 40 is supported at the end of the horizontal groove of the guide groove 42 via the vertical groove 41b, and the fixing pin 37 is located at the lower end of the vertical groove 41b.

When the operating handle 29 is operated in the locking direction from this state, the retaining bolt 27 moves upward and at the same time the slide frame 35 also descends by an amount indicated by the arrow a in FIG. However, the tight piece 33 does not move until the upper end of the vertical groove portion 41b reaches the slide bin 40, and maintains the above-described entry position. This is to advance the protrusion operation of the engagement bolt 27 and facilitate the engagement operation with the receiving metal fitting 30.

When the slide frame 35 is further lowered as indicated by the arrow, the inclined groove portion 41a comes into contact with the slide bin 40, and the slide bin 40 is pushed out on the slope. As a result, the tight piece 33 is gradually pushed outward, and its engaging claw 33a
protrudes outward from the opening 39 of the slide frame 35. At this time, the slide bin 40 is located at the corner of the guide groove 42, as shown in FIG. Further, the engaging claw 33a is located directly above the engaging metal fitting 31.

The slide frame 35 can further descend from the above state along the vertical groove portion of the guide groove 42, and the tight piece 33 also descends together with the slide frame 35. This downward movement causes the engaging claw 33 to
a enters into the engaging metal fitting 31 and operates to relatively pull the engaging fitting 31 with its inclined surface 33b, thereby tightly fixing the side frame 3 in the inner and outer directions. Furthermore, the tight piece 33
It receives an upward reaction force from 1 to support the weight of the side frame 3, and at the same time cooperates with the abutment wall 8 to tightly fix the side frame 3 in the vertical direction. This state is shown in FIG.

For ease of understanding, the above operation description includes a first locking operation in which only the slide frame 35 is lowered, a second locking operation in which the tight piece 33 protrudes outside the case 34, and the engaging claw 33a. is engaged with the engaging metal fitting 31 for tight operation.
Although the locking operation has been explained separately, a series of these operations can be performed continuously by one-touch operation of the operating handle 29.

When unlocking, by rotating the operating handle 29 upward, the tight piece 33 and the engagement bolt 27 can be returned to their original states in the reverse order to the above, and the side frame 3・Elevating and lowering operations are performed with 33 retracted into the side frame 3.

[Second Embodiment] FIGS. 10 and 11 show a second embodiment of the present invention in which the tight mechanism 26 is modified.

This is achieved by providing two tight mechanisms 26, connecting their respective slide frames to the upper rack 45 and lower rack 46, and moving the tight pieces 33 in the opposite direction to tightly fix the engaging fittings 31 from above and below at the same time. This differs from the first embodiment in this point. 11th
In the figure, reference numeral 50 is a sealing body that closes the gap between the side frame 3 and the loading platform 1.

[Third Embodiment] Fig. 12 shows a tight mechanism 26 provided above the side frame 3 and an engagement bolt 27 provided below, so that the engagement fittings 31 provided on the side frame 3 and the wing 5 are relatively drawn and fixed. The engaging bolt 27 is formed into a hook shape, and is swung through the swinging lever 51 to fit and engage with the receiving fitting 30 of the loading platform 1, thereby moving the side frame 3 toward the loading platform L side. This differs from each of the above embodiments in that the pulling operation is performed.

[Fourth Embodiment] FIGS. 13 and 14 show a fourth embodiment of the present invention in which the tight mechanism 26 is further modified.

In this case, the engaging claw 33a of the tight piece 33 is formed as a round shaft, and the inclined surface 31a for tight operation is formed on the side of the engaging metal fitting 31 provided on the wing 5. Furthermore, a tight mechanism 26 is embedded in the upper end surface of the side frame 3, and a connecting rod 47 that moves up and down.
The motion is converted by the bell crank 52 and transmitted to the slide frame 35. Reference numeral 53 is a connecting rod that transmits the operation to the adjacent tight mechanism.

[Another example]

The closing device of the present invention can also be applied to a swinging door whose lower end is attached to a loading platform via a hinge metal fitting, and a sliding door that can be opened and closed freely, so there are no limitations on the opening/closing form of the door panel.

The operating handle 29 may be operated to fold down relative to the door panel 3. Further, the interlocking member 28 is a pinion-
In addition to performing movement conversion using the rack mechanism, it is also possible to perform similar movement conversion using levers and links.

The tight mechanism 26 can also be provided between the door panel 3 and the support column 2, and in this case, the door panel 3 can be fastened to the support column 2, the loading platform 1, and the wing 5 at the same time.

[Brief explanation of the drawing]

1 to 9 show a first embodiment of a closing device according to the present invention, FIG. 1 is a side view schematically showing the closing device, and FIG. 2 is a view taken along the line A-A in FIG. 1. , Fig. 3 is an external perspective view of the truck, Fig. 4 is a longitudinal sectional view showing the lifting device, Fig. 5 is a longitudinal sectional view of the tight mechanism, Fig. 6 is a sectional view taken along line B-B in Fig. 5, and Fig. 7 is a longitudinal sectional view showing the lifting device. The figure is number 5
The sectional view taken along the line C--C in the figure, and FIGS. 8 and 9 are longitudinal sectional views showing the operating state of the tight mechanism, respectively. 8th
The figure shows a standby state, and FIG. 9 shows a state in which the tight piece protrudes. 10 and 11 show a second embodiment of the closing device according to the present invention, FIG. 10 is a schematic side view of the closing device, and FIG. 11 is a view taken along the line D-D in FIG. 10. . FIG. 12 is a longitudinal sectional view showing a third embodiment of the closing device according to the present invention. 13 and 14 show a fourth embodiment of the closing device according to the present invention, with FIG. 13 being a schematic side view and FIG. 14 being a view taken along the line E--E in FIG. 13. 1... Loading platform, 3... Door panel (side frame), 5... Wing, 26... Tight mechanism, 27... Engagement bolt, 28... - Interlocking member, 29... Operation handle, 31... Maintenance tool, 33... Tight piece, 34... Case, 35... Slide frame, 36... Cam Mechanism, 40... Slide bin, 41... Cam groove, 42... Guide groove, L... Closing device. Inventor: Yoshihisa Komoto Patent Applicant: Shin Kansai Bearing Co., Ltd. Agent Patent Attorney: Takeshi Oriyori

Claims (1)

[Claims] 1. The door panel (3) has a tight mechanism (26) and an engagement bolt (27) for engaging different fastening objects inside the door panel (3), and an interlocking member (28) connected to these. , door panel (3
) on the outer surface of the tight mechanism (26) and engagement bolt (27).
) is provided with an operation handle (29) that opens and closes the door via an interlocking member (28). ) is supported in a reciprocating manner to inherit the operation of the interlocking member (28); A cam mechanism (
36), and the cam mechanism (36) is configured to convert the reciprocating movement of the slide frame (35) into the displacement of the tight piece (33). , The tight mechanism (26) is operated so that the tight piece (33) moves together with the slide frame (35) near the end of the operating stroke of the slide frame (35) to pull the door panel (3) and the object to be fastened together. The constructed vehicle door panel closing device.