KR102371067B1 - Folding door of vehicle improving sealing structure of lower end - Google Patents

Abstract

The present invention relates to a folding door, and relates to a folding door of a vehicle having an improved lower sealing structure so that abrasion is reduced by avoiding contact with a step plate during operation while improving the sealing performance of the lower portion.
According to the present invention, a folding door for a vehicle having an improved lower sealing structure includes a first door member 11 having one end hingedly connected to the vehicle, and one end hinged at the other end of the first door member 11 . In the folding door of a vehicle including a connected second door member (12), the first door member (11) and the lower portion of the second door member (12) are respectively the first door member (11) and the second door member (12) A sealing rubber 22 provided to airtightly seal the second door member 12 with the step plate 31, and the first door member 11 and the second door member 12, respectively, to open the folding door. In operation, it characterized in that it comprises a sealing rubber lifting means for raising the sealing rubber (22) so as to space the sealing rubber (22) from the step plate (31).

Description

Vehicle folding door with improved lower sealing structure {FOLDING DOOR OF VEHICLE IMPROVING SEALING STRUCTURE OF LOWER END}

The present invention relates to a folding door, and relates to a folding door of a vehicle having an improved lower sealing structure so that abrasion is reduced by avoiding contact with a step plate during operation while improving the sealing performance of the lower portion.

Various types of doors are applied to vehicles.

Among them, a folding door that opens and closes a side of a vehicle such as a bus used to transport passengers is applied in a narrow space. 1 and 2 , the folding door 110 includes a first door member 111 hingedly connected to the vehicle body of the vehicle 1 , and a hinged connection to the first door member 111 . It includes a second door member 112 and rotates the first door member 111 connected to the actuator 125 and the actuating rod 126 when the actuator 125 installed on the vehicle body operates while rotating the first door. As the member 111 and the second door member 112 are folded or unfolded, the side surface of the vehicle is opened and closed.

On the other hand, the folding door 110 is airtight structure is applied to prevent the inflow of wind and moisture. A weather strip is installed on the side surfaces of the first door member 111 and the second door member 112 to be airtight, and as shown in FIG. 3 , the first door member 111 and the second door member A sealing rubber 133 is installed at the lower end of the 112 to seal between the first door member 111 and the second door member 112 and the step plate 131, so that noise, wind or foreign matter from the outside is provided. prevent this inflow.

Since the sealing rubber 133 is in contact with the step plate 131, when it is in close contact to improve the sealing performance, the sealing performance is improved, but this is the lower end of the sealing rubber 133 and the There is a problem in that the step plate 131 contacts and promotes wear of the lower end of the sealing rubber 133 .

That is, as shown in FIG. 4 , the step plate 131 is fastened to the vehicle body frame 101 , and the sealing rubber 133 is disposed at the lower ends of the first door member 111 and the second door member 112 . It is fixed, and the sealing rubber 133 comes into contact with the lower end of the sealing rubber 133 when the folding door 110 is operated, so that wear occurs. In particular, the step plate 131 is formed with a protrusion 131a to prevent slipping when getting on and off, which further promotes wear. In addition, an aluminum mold is installed on the outside of the step plate 131 in the frame 101 , and the sealing rubber 133 is worn while also in contact with the mold 132 .

As a result, a gap is formed between the sealing rubber 133 and the step plate 131 , so that noise, wind, and foreign substances may be introduced from the outside. In addition, there was a cumbersome need to replace the step plate (131). In addition, there is a problem in that the surface of the step plate 131 also has a pattern due to the contact of the sealing rubber 133, which impairs the aesthetics.

On the other hand, the following prior art document discloses a technology related to 'rotational lower 　 sealing structure of a bus folding door'.

KR 10-2006-0003714 A

The present invention was invented to solve the above problems. When the door is closed, the sealing rubber is in close contact with the step plate to improve sealing performance, and when the door is opened and closed, the sealing rubber is spaced apart from the step plate An object of the present invention is to provide a folding door for a vehicle with an improved lower sealing structure to prevent wear and tear.

A folding door for a vehicle with an improved lower sealing structure according to the present invention for achieving the above object includes a first door member having one end hinge-connected to the vehicle, and one end at the other end of the first door member. In the folding door of a vehicle including the hinge-connected second door member, the first door member and the second door member are respectively formed under the first door member and the second door member to be airtight with the step plate. a sealing rubber provided to move the sealing rubber; and sealing rubber lifting means for raising the sealing rubber so as to separate the sealing rubber from the step plate when the folding door is opened, respectively, in the first door member and the second door member characterized in that

The sealing rubber lifting means provided in the first door member includes a sealing plate that fixes the sealing rubber and is disposed in parallel with the first door member, an upper end is rotatably connected to the first door member, and a lower end is the A bracket rotatably connected to the sealing plate, a rotation shaft that enables the first door member to rotate from the vehicle body, has a predetermined depth in a portion adjacent to the lower end, and has a spiral groove formed along the circumference, and from one end of the sealing plate It is formed to extend, and the end is formed of an interlocking pin inserted into the spiral groove, and the interlocking pin is characterized in that it moves along the spiral groove when the first door member rotates.

The brackets are provided in plurality and are characterized in that they are spaced apart from each other.

The spiral groove is formed so that the interlocking pin rises when the first door member rotates to open the folding door.

An elastic member for rotating the bracket so that the sealing rubber is in close contact with the step plate is provided between the first door member and the bracket.

The sealing rubber lifting means provided in the second door member includes a sealing plate that fixes the sealing rubber and is disposed in parallel with the first door member, an upper end is rotatably connected to the first door member, and a lower end is the A bracket rotatably connected to a sealing plate, a sliding rail formed along the longitudinal direction of the vehicle at the end of the step plate, and having an operation groove formed therein with a predetermined length along the longitudinal direction of the vehicle, the upper end The sealing plate is fixed to the sealing plate, and the lower end includes a lifting pin positioned in the operation groove, wherein the lifting pin moves from the operation groove to the upper surface of the sliding rail when the second door member is opened. It is characterized by raising the

The brackets are provided in plurality and are characterized in that they are spaced apart from each other.

The operating groove formed in the sliding rail is formed to have a predetermined length along the front-rear direction of the vehicle, and the tip of the operating groove is formed to be inclinedly connected to the upper surface of the sliding rail.

It characterized in that the front end of the operating groove is connected to the upper surface of the sliding rail without an angled part.

An elastic member for rotating the bracket so that the sealing rubber is in close contact with the step plate is provided between the second door member and the bracket.

The vehicle is characterized in that it is a bus.

According to the folding door of the vehicle having the improved sealing structure at the bottom of the present invention having the above configuration, the sealing rubber is in close contact with the step plate in the closed state to prevent the inflow of noise, wind and foreign substances from the outside, During the door opening/closing operation, the sealing rubber rises and is spaced apart from the step plate to prevent abrasion.

Accordingly, it is not necessary to replace the sealing rubber, and it is possible to prevent a pattern from occurring on the step plate due to the contact of the sealing rubber.

1 is a perspective view of a bus to which a folding door is applied;
2 is a perspective view of a folding door to which a sealing structure according to the prior art is applied;
3 is a perspective view showing an open state of the folding door to which the sealing structure according to the prior art is applied;
4 is a sectional view of a main part of a folding door to which a sealing structure according to the prior art is applied;
5 is a perspective view illustrating a structure of a first door member in a folding door of a vehicle having an improved lower sealing structure according to the present invention;
6 is a perspective view illustrating a state of a first door member during an opening operation of a folding door of a vehicle having an improved lower sealing structure according to the present invention;
7 is a perspective view illustrating a structure of a second door member in a folding door of a vehicle having an improved lower sealing structure according to the present invention;
8 is a perspective view illustrating a state of a second door member during an opening operation of a folding door of a vehicle having an improved lower sealing structure according to the present invention;

Hereinafter, a folding door of a vehicle having an improved lower sealing structure according to the present invention will be described in detail with reference to the accompanying drawings.

According to the present invention, a folding door for a vehicle having an improved lower sealing structure includes a first door member 11 having one end hingedly connected to the vehicle, and one end hinged at the other end of the first door member 11 . In a folding door of a vehicle including a connected second door member (12), the first door member (11) and the second door member (11) are located below the first door member (11) and the second door member (12), respectively. A sealing rubber 22 provided to airtightly seal the second door member 12 with the step plate 31, and the first door member 11 and the second door member 12 each have an opening operation of the folding door. In this case, it includes a sealing rubber lifting means for raising the sealing rubber 22 so as to be spaced apart from the step plate 31 .

In a vehicle, for example a bus, a folding door is applied to the side to open quickly in a narrow operating area.

The folding door includes a first door member 11 having one end hingedly connected to the vehicle body, and a second door member 12 having one end hinge-connected to the other end of the first door member 11. include When the folding door is closed, the first door member 11 and the second door member 12 are deployed parallel to the vehicle body, and when opened, the first door member 11 and the second door member (12) becomes the folded state.

The lower portions of the first door member 11 and the second door member 12 are airtight with the lower ends of the first door member 11 and the second door member 12 and the step plate 31 of the vehicle. A sealing rubber 22 is provided so as to

At this time, in the present invention, the sealing rubber 22 is raised and lowered according to the opening and closing of the folding door, so that the sealing performance of the folding door is improved and abrasion of the sealing rubber 22 is prevented.

To this end, the first door member 11 and the second door member 12 are provided with sealing rubber lifting means for lifting and lowering the sealing rubber 22, respectively.

The first door member 11 has a structure that directly rotates with respect to the vehicle body, whereas the second door member 12 has a structure that rotates with respect to the first door member 11. The specific shape is different. However, the sealing rubber elevating means ensures that the sealing rubber 22 is in close contact with the step plate 31 when the folding door is closed, and when the folding door is opened, the sealing rubber 22 moves the step It is the same in that it rises from the plate 31 and is spaced apart.

On the other hand, the specific means of the sealing rubber lifting means will be described as follows.

First, as shown in FIGS. 5 and 6 , the sealing rubber lifting means applied to the first door member 11 fixes the sealing rubber 22 and is arranged in parallel with the first door member 11 . a sealing plate 21 that becomes a sealing plate 21, an upper end of which is rotatably connected to the first door member 11, and a lower end of a bracket 23 rotatably connected to the sealing plate 21, and the first door member ( 11) to be rotatable from the vehicle body, a rotation shaft 13 having a certain depth in a portion adjacent to the lower end and a spiral groove 13a formed along the periphery, and extending from one end of the sealing plate 21, , the end includes an interlocking pin (21a) inserted into the spiral groove (13a).

The sealing plate 21 fixes the sealing rubber 22 , and is disposed at the lower end of the first door member 11 in parallel with the first door member 11 . The sealing plate 21 rises while moving along the surface of the first door member 11 when the folding door is opened.

The sealing plate 21 is preferably formed in an inverted U-shape (a U-shaped inverted shape) so that the upper portion of the sealing rubber 22 is fixed therein.

An interlocking pin 21a extending from the sealing plate 21 is formed at one end of the sealing plate 21 .

The upper end of the bracket 23 is rotatably connected to the first door member 11 , and the lower end is rotatably connected to the sealing plate 21 . A plurality of the brackets 23 are provided and spaced apart from each other, and each of the brackets 23 is rotatably connected to the first door member 11 and the sealing plate 21 .

An elastic member (not shown) is preferably provided between the bracket 23 and the first door member 11 to allow the bracket 23 to rotate in a direction for lowering the sealing plate 21 .

The rotating shaft 13 is hinge-connected to rotate the first door member 11 from the vehicle body. The spiral groove 13a is formed at the lower end of the rotation shaft 13 . The spiral groove (13a) is formed to a certain depth, and the end of the interlocking pin (21a) is inserted in the spiral groove (13a), so that the interlocking pin (21a) is rotated when the first door member (11) is rotated. It ascends and descends while moving along the spiral groove (13a). In particular, the spiral groove 13a is formed so that the interlocking pin 21a moves up and down when the first door member 11 rotates to open the folding door.

However, the rotation shaft 13 only causes the first door member 11 to rotate, and the rotation shaft 13 is fixed to the vehicle body.

7 and 8 show the sealing rubber lifting means applied to the second door member 12 . The sealing rubber lifting means applied to the second door member 12 includes a sealing plate 21 that fixes the sealing rubber 22 and is disposed in parallel with the first door member 11, and the upper end is the first A bracket 23 rotatably connected to the first door member 11, the lower end thereof being rotatably connected to the sealing plate 21, and an end of the step plate 31 formed along the longitudinal direction of the vehicle, , a sliding rail 32 having an operation groove 32a formed therein with a predetermined length along the longitudinal direction of the vehicle, the upper end is fixed to the sealing plate 21, and the lower end is located in the operation groove 32a It includes a lifting pin (24).

Also in the second door member 12, similarly to the first door member 11, the sealing plate 21 and the bracket 23 are used so that the sealing rubber 22 can be moved up and down. The sealing plate 21 is formed in an inverted U-shape so that the upper portion of the sealing rubber 22 is fixed, and the sealing plate 21 is secured to the second door member 12 using a plurality of the brackets 23 . to be installed in An elastic member for elastically supporting the bracket 23 is provided in the second door member 12 so that the sealing plate 21 descends.

On the other hand, the second door member 12 fastens the upper end of the lifting pin 24 to the sealing plate 21, and the lifting pin 24 is formed on the sliding rail 32 along the longitudinal direction of the vehicle. The sealing plate 21 is raised and lowered by moving along the operation groove 32a. The other end of the second door member 12 (an end opposite to the one end connected to the first door member) moves along the longitudinal direction of the vehicle. Accordingly, the sliding rail 32 is installed on the outside of the step plate 31 along the longitudinal direction of the vehicle, and the operating groove 32a is formed in the sliding rail 32 with a predetermined length. The operation groove 32a is formed with a predetermined length from the rear end of the sliding rail 32 toward the front end. The front end of the operation groove 32a is connected to the upper surface of the sliding rail 32 obliquely. That is, the front end of the operating groove 32a is connected to the upper surface of the sliding rail 32 in a smooth curve without an angled part, as in the enlarged cross-sectional view of FIG. 7 , so that the lower end of the lifting pin 24 is the It moves from the operation groove (32a) to the surface of the sliding rail (32).

The operation of the folding door of the vehicle having the improved lower sealing structure according to the present invention having the above configuration will be described as follows.

An operation state of the first door member 11 and the second door member 12 when the folding door is opened will be examined.

First, the operating state of the first door member 11 is shown in FIGS. 5 and 6 . 5 is a state when the folding door is closed, and FIG. 6 is a state when it is opened.

When the first door member 11 is rotated to open in a closed state, the first door member 11 rotates about the rotation shaft 13 (arrow ① in FIG. 6 ). At this time, the interlocking pin 21a also rotates together with the first door member 11 and rises while rotating the sealing plate 21 (arrow ② in FIG. 6 ), and the sealing rubber 22 also rises. (arrow 3 in FIG. 6 ), the lower end of the sealing rubber 22 is spaced apart from the step plate 31 , thereby preventing abrasion during rotation of the first door member 11 .

7 and 8 show the operating state of the second door member 12 . 7 is a closed state of the second door, and is a state when the second door member 12 of FIG. 8 is operated.

When the first door member 11 rotates to open the folding door, the second door member 12 and the second door member 12 are also opened while rotating. However, the other end of the second door member 12 substantially moves along the longitudinal direction of the vehicle. Accordingly, when the other end of the second door member 12 moves along the longitudinal direction of the vehicle (arrow ① in FIG. 8 ), the lifting pin 24 moves along the operating groove 32a and then slides. It moves along the longitudinal direction of the vehicle in a state in which it rises to the surface of the rail 32 (arrow ② in FIG. 8).

Then, as the sealing plate 21 rotates and rises, the sealing rubber 22 rises from the step plate 31 and is spaced apart to prevent wear of the sealing rubber 22 .

As for the first door member 11 and the second door member 12, when the folding door is closed, the sealing rubber 22 is in a state in which the sealing rubber 22 can be lowered by the reverse process, and the sealing plate 21 and the self-weight of the sealing rubber 22 and the elastic member so as to be in close contact with the step plate to be sealed.

1: vehicle
11: First door member
12: second door member
13: rotation shaft
13a: spiral groove
21: sealing plate
21a: interlocking pin
22: sealing rubber
23 : bracket
24: lift pin
31: step plate
31a: protrusion
32: sliding rail
32a: operating groove
101: frame
110: folding door
111: first door member
112: second door member
125: actuator
126: working load
131: step plate
131a: protrusion
132: mold
133: sealing rubber

Claims (11)

A folding door for a vehicle comprising: a first door member having one end hinge-connected to the vehicle; and a second door member having one end hinge-connected to the other end of the first door member;
a sealing rubber provided under the first door member and the second door member to seal the first door member and the second door member with the step plate, respectively;
Each of the first door member and the second door member includes sealing rubber lifting means for raising the sealing rubber so as to separate the sealing rubber from the step plate when the folding door is opened,
The sealing rubber lifting means provided on the second door member,
a sealing plate fixing the sealing rubber and arranged in parallel with the first door member;
a bracket having an upper end rotatably connected to the first door member and a lower end rotatably connected to the sealing plate;
A sliding rail formed along the longitudinal direction of the vehicle at the end of the step plate and having an operating groove formed therein with a predetermined length along the longitudinal direction of the vehicle;
The upper end is fixed to the sealing plate, and the lower end includes a lifting pin located in the operation groove,
The operating groove is formed with a predetermined length along the front-rear direction of the vehicle, a predetermined length from the rear end of the operation groove is formed with a predetermined depth from the upper surface of the sliding rail, and the front end of the operation groove is an upper portion of the sliding rail. It is formed to be connected obliquely to the surface,
The lifting pin moves from the operating groove to the upper surface of the sliding rail when the second door member is opened, and the lifting pin raises the sealing plate. According to claim 1,
The sealing rubber lifting means provided on the first door member,
a sealing plate fixing the sealing rubber and arranged in parallel with the first door member;
a bracket having an upper end rotatably connected to the first door member and a lower end rotatably connected to the sealing plate;
a rotating shaft that enables the first door member to rotate from the vehicle body, has a predetermined depth in a portion adjacent to the lower end, and has a spiral groove formed along the circumference;
It is formed to extend from one end of the sealing plate, and the end consists of an interlocking pin inserted into the spiral groove,
The folding door of a vehicle having an improved lower sealing structure, characterized in that the interlocking pin moves along the spiral groove when the first door member rotates. 3. The method of claim 2,
A folding door of a vehicle having an improved lower sealing structure, wherein the brackets installed on the first door member are provided in plurality and are spaced apart from each other. 3. The method of claim 2,
The spiral groove is
A folding door for a vehicle with an improved lower sealing structure, wherein the interlocking pin is formed to rise when the first door member rotates to open the folding door. 3. The method of claim 2,
An elastic member for rotating the bracket so that the sealing rubber is in close contact with the step plate is provided between the first door member and the bracket. delete According to claim 1,
A folding door for a vehicle with an improved lower sealing structure, wherein the brackets installed on the second door member are provided in plurality and are spaced apart from each other. delete According to claim 1,
A folding door of a vehicle having an improved lower sealing structure, characterized in that the front end of the operating groove is connected to the upper surface of the sliding rail without an angled portion. 3. The method of claim 2,
An elastic member for rotating the bracket so that the sealing rubber is in close contact with the step plate is provided between the second door member and the bracket. According to claim 1,
The vehicle is a folding door of a vehicle with an improved lower sealing structure, characterized in that it is a bus.

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