JPH0332714Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a vehicle door opening/closing device that is installed in a lintel above a vehicle entrance.

As is well known, vehicle door opening/closing devices include single-opening systems in which the door is directly opened and closed using an air cylinder, and double-opening systems that use a rack-pinion, V-belt, etc. as a double-opening interlocking mechanism for the door in combination with an air cylinder. method is used. In such a door opening/closing device, it is difficult and dangerous for one person to install and remove the door opening/closing device at a relatively high location such as inside the lintel above the entrance of the vehicle. In order to solve these drawbacks, devices as disclosed in Japanese Utility Model Publication No. 52-36327 and Japanese Utility Model Publication No. 52-36328 have been proposed. That is, both of these solve the above-mentioned drawbacks by making it possible to easily install and remove only the air cylinder, which requires periodic disassembly and internal maintenance. In particular, the device disclosed in the latter publication is easier to work with than the device described in the former publication in that it can be installed and removed using mounting bolts while the air cylinder is placed on a pedestal provided on the vehicle body. Moreover, it has the advantage of being safe.

However, with the devices described in the above two publications, each time the air cylinder is attached to or removed from the vehicle body, air is sent through two passages communicating with each cylinder chamber provided on both end covers of the outside air cylinder and a solenoid valve. This inevitably involved the work of attaching and detaching two supply/discharge pipes connected to the source. Furthermore, when attaching the air cylinder to the vehicle body, a large number of mounting bolts were required, and the mounting position to the mounting base could not be determined easily, so there was a drawback that a lot of time was required to install and remove the air cylinder. .

This idea was made in view of the above circumstances, and when the air cylinder is attached to or removed from the vehicle body, the two air supply and exhaust pipes connected to the air source via the solenoid valve can be attached and detached. The aim is to improve work efficiency and work safety by simultaneously performing the same operation for mounting and positioning on the mounting base and reducing the number of mounting bolts. In a vehicle door opening/closing device that is installed in the upper lintel and opens and closes the door using an air cylinder, air is connected to two air supply and exhaust pipes that are connected to an air source via a solenoid valve on a mounting base that is attached to the vehicle body. a connecting portion communicating with the piston side cylinder chamber of the air cylinder portion and a connecting portion communicating with the rod side cylinder chamber of the air cylinder portion; is provided at a position facing the opening end, and
These connecting portions are formed into pin boss portions or pin portions that can be inserted and communicated with the open end portion, respectively, and the air cylinder is attached to the mounting base with a mounting bolt.

As an example to which this invention is applied, a double door opening/closing device will be described below based on the drawings.

The main components of a double-swing type vehicle door opening/closing device include a mounting base 2 attached to a vehicle body 1, an air cylinder section 3 attached to the mounting base 2, and a double-swing interlocking mechanism section 4.

The mounting base 2 is a long member with a substantially inverted L-shaped cross section, and its vertical piece is attached to the vehicle body 1 in the lintel above the entrance/exit of the vehicle using a fixing bolt 6 with a mounting seat 5 interposed therebetween. Since it is fixed, it can be installed and removed freely, and a distance of 5 minutes from the mounting seat is provided between it and the vehicle body 1. In addition, the mounting base 2 has
Two air passages 7, 8 are provided for introducing pressurized air into the air cylinder section 3. One end side of these two air passages 7 and 8 is connected to an air piping port 9 provided in the mounting base 2, and is used to guide air supplied from an air source 11 via a solenoid valve 10 or to an air cylinder section 3.
two pipes 12 for discharging the pressurized air inside to the atmosphere;
It can be freely connected to 13. Furthermore, the open ends 7a and 8a on the other end side of these two air passages 7 and 8
is formed into either a pin shape as shown in FIGS. 5 and 6, or a pin boss shape as shown in FIGS. 7 and 8.

The air cylinder section 3 includes a cylinder body 14, a piston 15 and a piston rod 16 inside the cylinder body 14, and a mounting plate 1 fixed to the cylinder body 14 for fixing the cylinder body 14 to the mounting base 2.
7. It is composed of a mounting bolt 19 that is screwed into a mounting portion 18 that fixes the mounting plate 17 to the mounting base 2. Two connecting portions 20 and 21 are formed in the cylinder body 14 to connect and communicate with the open end portions 7a and 8a on the other end side of the two air passages 7 and 8 provided in the mounting base 2. ing. These two connecting parts 20 and 21 are connected to the two air passages 7 in either a pin boss shape as shown in FIGS. 5 and 6 or a pin shape as shown in FIGS. 7 and 8. , 8 is selected so that it can be inserted freely depending on the shape of the opening end portions 7a, 8a on the other end side. Moreover, these two connecting parts 20, 21
are in communication with a piston-side cylinder chamber a or a rod-side cylinder chamber b within the cylinder body 14, respectively.

The door double-opening interlocking part 4 is connected to the piston rod 1.
6, an upper rack 23 fixed to the end of the mounting base 2 via a link 22, an upper guide 24 that slidably guides the upper rack 23 in the longitudinal direction of the mounting base 2, and the upper rack 2
3, a lower guide 27 that slidably guides a lower rack 26 that engages with the pinion 25 in the longitudinal direction of the mounting base 2; It is composed of a connecting plate 30 that connects the two, and a connecting plate 32 that connects the end of the piston rod 16 to the other door 31. These two doors 29,3
1 is suspended on a rail 35 by door wheels 33 and 34 provided above. The gearbox 28
is fixed to the mounting base 2 by mounting bolts 36, 36 so as to be able to be mounted and removed. Also, the upper rack 23 and lower rack 26 are also connected to this gearbox 2.
Since it is supported by an upper guide 24 and a lower guide 27 of 8, by removing this gearbox 28 from the mounting base 2, the door double-opening interlocking part 4 can be removed from the mounting base 2.

In the figure, numeral 37 is an oil receiver that receives the oil supplied in the gear box 28 to prevent it from falling below the entrance/exit, 38 is a switch actuator connected to the tip of the lower rack 26 with a link 39, and 40 is the switch actuator. The door switch detects that the two doors have been closed by contacting the door 38, and is fixed to the mounting base 2 with a mounting bolt 41.

When the air cylinder section 3 is attached to the mounting base 2 using this device having the above configuration, the sixth
The other end side of the two air passages 7 and 8 provided in the mounting base 2 as shown in FIG. 5 or FIG. The open ends 7a, 8a of the air cylinder section 3 are inserted into the two connecting sections 20, 21 of the air cylinder section 3. Due to this operation, the air cylinder part 3 is guided to a predetermined position on the mounting base 2, so that the mounting bolt 19 and the mounting part 18 of the mounting base 2 are easily aligned, and fixing with the mounting bolt 19 can be performed extremely easily. There are advantages. Furthermore, by inserting the two open end portions 7a, 8a and the two connecting portions 20, 21, the air cylinder portion 3 is supported even when it is not attached by the mounting bolts 19. In addition to the above, fixing using the mounting bolts 19 can be performed even more easily. Moreover, by inserting these two open end portions 7a, 8a and the two connecting portions 20, 21, the air source 11 or the air source 2 communicating with the atmosphere is connected.
The two air passages 7 and 8 and the piston side cylinder chamber a and the rod side cylinder chamber b of the air cylinder section 3 are automatically connected, so unlike conventional equipment, they were connected each time as a separate operation. You can save time.

Contrary to the above, when removing the air cylinder section 3 from the mounting base 2, move the air cylinder section 3 from the state shown in FIG. 5 or 7 in the direction of arrow B shown in FIG. 6 or FIG. 2 installed on the mounting base 2 by moving the
Open ends 7a, 8 on the other end side of the two air passages 7, 8
a and the two connecting parts 20, 2 of the air cylinder part 3
All you have to do is turn away 1. As a preliminary step to this operation, it is necessary to loosen the mounting bolts 19 and release the connection between the mounting plate 17 and the mounting portion 18. However, even if this connection is released, the two opening ends 7
Since a and 8a and the two connecting parts 20 and 21 are inserted and connected, there is no fear that the air cylinder part 3 will fall, and all you have to do is hold it down to prevent the air cylinder part 3 from falling forward, so you can work easily and safely. can be done. Furthermore, as a result of the separation, the connection between the piston side cylinder chamber a or the rod side cylinder chamber b of the air cylinder section 3 and the air source 11 or the atmosphere is automatically released. This saves you the trouble of doing it separately. In addition, it goes without saying that the present invention can also be applied to a single-opening type door opening/closing device in addition to the above.

As described above, according to the present invention, since the connecting part of the air cylinder part 3 is inserted into the open end of the air passage, not only the position of the air cylinder part 3 can be determined, but also the air cylinder part Since all you have to do is hold down, the work can be done safely and easily by one person. Further, it has the advantage that the work of connecting the piping can be done automatically by the work of attaching and removing the air cylinder.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; FIG. 1 is an overall plan view, FIG. 2 is an enlarged sectional view of FIG. Figure 4 is an enlarged cross-sectional view of Figure 1 with the - line partially omitted, Figures 5 to 8 show the principal parts and operation, and Figures 5 and 6 show the projection on the mounting base. If provided, FIGS. 7 and 8 respectively show the case where the air cylinder portion is provided with a protrusion. DESCRIPTION OF SYMBOLS 1...Vehicle body, 2...Mounting base, 3...Air cylinder part, 4...Double door interlocking part, 7, 8...Air passage, 7a, 8a...Opening end, 10...Solenoid valve, 11... Air source, 12, 13... Piping, 1
9, 36... Mounting bolt, 20, 21... Connection part, a... Piston side cylinder chamber, b... Rod side cylinder chamber.

Claims (1)

[Scope of utility model registration request] In a vehicle door opening/closing device that is installed in the lintel above the vehicle entrance and opens and closes the door using an air cylinder, two supply and exhaust pipes are connected to an air source via a solenoid valve on a mounting base that is attached to the vehicle body. Air passages are provided that communicate with each other, and the open ends of the two air passages are formed into a pin portion or a pin boss shape, and communicate with a connecting portion that communicates with the piston side cylinder chamber of the air cylinder portion and the rod side cylinder chamber. Connecting portions are provided at positions facing the open end, and these connecting portions are formed into pin boss portions or pin portions that can be inserted and communicated with the open end, respectively, and the air cylinder is attached to the mounting base with a mounting bolt. A vehicle door opening/closing device characterized by being installed.