JPH0535432U - Door weather strip - Google Patents

Abstract

(57) [Abstract] [Purpose] The door does not lose the sealing effect between the door 3 and the vehicle body opening 2 by changing the spring rate of the seal portion 6 or the installation workability. It surely prevents rainwater and the like from entering the inside of the vehicle from the inner surface of the peripheral edge of 3. [Structure] A fixed portion 5 that can be fitted into a fitting groove 31 provided in a peripheral portion of the door 3, and is elastically displaceable with respect to the fixed portion 5,
A seal portion 6 that elastically contacts the vehicle body opening 2 when the door 3 is closed, and a first bulge portion 8 that elastically contacts the inner surface of the peripheral edge portion of the door 3 when the door 3 is closed; At the boundary between the fixed portion 5 and the seal portion 6, a second bulge portion 9 that elastically contacts the inner surface of the peripheral edge portion of the door 3 adjacent to the fitting groove 31 when the door 3 is closed is formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door weather strip that closes a gap between a peripheral portion of a door of a vehicle and a vehicle body opening that is closed by the door.

[0002]

[Prior Art]

 Conventionally, this kind of weather strip is described in, for example, Japanese Utility Model Laid-Open No. 63-94029 and, as shown in FIG. 4, is fixed by being inserted and fixed in a fitting groove B provided in the peripheral portion of the door A. The portion C and the two first and second seals that are elastically displaceable with respect to the fixed portion C and are elastically contacted at two locations, an outer side and an inner side, of the vehicle body opening D when the door A is closed. Portions E and F and a bulging portion G provided on the side of the first seal portion E and elastically contacted with the inner surface of the peripheral edge of the door A when the door A is closed are provided.

Then, when the vehicle body opening D is closed by the door A, the first and second seal portions E and F of the weather strip are elastically contacted at two locations inside and outside the vehicle body opening D, respectively. By doing so, the vehicle body opening D side is sealed in the gap between the door A and the vehicle body opening D 1 by each of these seal portions E and F, and the bulging portion G on the first seal portion E side is By elastically contacting the inner peripheral surface of the door A, the inner peripheral surface of the door A is sealed in the gap between the door A and the opening D of the vehicle body.

[0004]

[Problems to be solved by the device]

 However, in the above weather strip, when the vehicle body opening D is closed by the door A, the respective seal portions E and F are elastically contacted with two places inside and outside the vehicle body opening D, respectively. In the gap between the door A and the vehicle body opening D, the opening D side can be reliably sealed, whereas between the weather strip and the door A, the inner peripheral surface of the peripheral edge of the door A is Although the bulging portion G is elastically contacted with the bulging portion G, the bulging portion G does not sufficiently seal the inner surface of the rim of the door A, and the sealing effect is not sufficient. There is a problem that rainwater and the like enter the passenger compartment from between the side surface and the weather strip.

In order to solve the above problems, another protrusion is provided in the first seal portion E near the bulging portion G, and when the vehicle body opening D is closed by the door A, the bulging portion is opened. It is possible to increase the sealing effect between the door A and the weather strip by elastically contacting the projecting portion G and the protrusion with the inner surface of the peripheral edge of the door A, respectively. When the bulging portion G and the protrusion are provided at two locations on the first seal portion E, the spring rate of the first seal portion E becomes high, that is, the elastic displacement performance of the first seal portion E is impaired, and The sealing effect between the door A and the vehicle body opening D by the first seal portion E is hindered.

It is also conceivable to provide the above-mentioned protrusion on a portion that does not affect the spring rate of the first seal portion E, for example, on the fixed portion C side, but the above-mentioned protrusion is provided on the fixed portion C side. When installing, when inserting the fixing portion C into the fitting groove B of the door A so as to attach the weather strip to the door A, the work of inserting the fixing portion C into the fitting groove B is performed. The presence of the protrusions makes it difficult to perform and impairs workability.

The present invention has been made in view of the above circumstances, and an object thereof is to prevent the sealing effect between the door and the vehicle body opening from being impaired by changing the spring rate of the sealing portion. Another object of the present invention is to provide a door weather strip capable of reliably preventing rainwater and the like from entering the vehicle compartment from the inner surface of the peripheral edge of the door without impairing the mounting workability.

[0008]

[Means for Solving the Problems]

 To achieve the above object, the present invention provides a door weather strip for closing a gap between a peripheral edge of a door and a vehicle body opening closed by the door, in which a fitting groove provided in the peripheral edge of the door. A fixed portion 5 that can be inserted into the fixed portion 31 and a seal portion 6 that is elastically displaceable with respect to the fixed portion 5 and is elastically contacted with the vehicle body opening portion when the door is closed are provided in the seal portion 6. A first bulge portion 8 is formed that is elastically contacted with the inner surface of the peripheral portion of the door when the door is closed, and at the boundary portion between the fixed portion 5 and the seal portion 6, the fitting groove 31 is formed at the boundary portion of the door. The second bulging portion 9 is elastically contacted with the inner surface of the peripheral portion of the adjacent door.

[0009]

[Action]

 In the above door weather strip, when the vehicle body opening is closed by the door, the first and second bulging portions 8 and 9 provided on the seal portion 6 are respectively provided at two locations on the inner surface of the peripheral edge portion of the door. Since they are elastically contacted with each other, the bulging portions 8 and 9 enhance the sealing effect on the inner side surface of the door peripheral portion, and reliably prevent rainwater and the like from entering the vehicle interior from the inner peripheral surface of the door peripheral portion. It

Further, the second bulging portion 9 is located at a boundary portion between the fixing portion 5 and the sealing portion 6, and is formed on an inner surface of a peripheral portion of the door adjacent to the fitting groove 31 when the door is closed. Since the second bulging portion 9 does not affect the spring rate of the seal portion 6 because it is disposed so as to be in elastic contact, the good seal between the door and the vehicle body opening portion by the seal portion 6 is achieved. A good sealing effect can be obtained. Moreover, since the second bulging portion 9 is provided at the boundary portion between the fixed portion 5 and the seal portion 6, that is, at a position separated from the fixed portion 5, the fixed portion 5 is fitted to the door. When fitted in the mating groove 31, the second bulging portion 9 does not interfere with the mounting workability.

[0011]

【Example】

 The vehicle shown in FIG. 3 has openings 2 and 2 provided at front and rear portions of a side wall of a vehicle body 1, and doors 3 and 3 are attached to the openings 2 and 2 so as to be opened and closed.

As is apparent from FIGS. 1 and 2, a fitting groove 31 is integrally provided at the inner peripheral edge of the door 3, and the door weather strip 4 made of rubber or the like is provided in the fitting groove 31. When the door 3 is closed by the door 3, the door weather strip 4 closes the gap formed between the vehicle body opening 2 and the door 3. Further, the fitting groove 31 of the door 3 is formed by overlapping a part of the outer member 32 constituting the door 3 inwardly in a folded-over manner, and opening the outer side at the tip side of the overlapping portion 33. A neck portion 34 having a C-shaped cross section and having a small diameter is provided on the opening side of the fitting groove 31 so as to prevent the fixing portion 5 of the door weather strip 4 which will be described later in detail from being inserted. Is forming.

However, the above door weather strip 4 is configured as follows. That is, as is clear from FIGS. 1 and 2, the door weather strip 4 is fixed to the fitting groove 31 provided in the door 3 and fixed to the fixing groove 5, and to the fixing portion 5. Is provided with two first and second seal portions 6 and 7 which are elastically displaceable and are elastically contacted at two positions of the vehicle body opening 2 on the outer side and the inner side of the opening when the door 3 is closed. The first bulging portion 8 that is elastically contacted with the inner surface of the overlapping portion 33 when the door 3 is closed is integrally formed at a portion of the first seal portion 6 facing the overlapping portion 33 of the door 3. At the boundary between the fixed portion 5 and the first seal portion 6, the inner surface of the neck portion 34 is elastically contacted with a portion of the fitting groove 31 facing the neck portion 34 when the door 3 is closed. The second bulge portion 9 is integrally provided.

Further, on the side of the mounting base of the second bulging portion 9 with respect to the first seal portion 6, a peeling portion 61 is formed by peeling a part of the second bulging portion 9 into an arc shape. Is provided so that the second bulging portion 9 is easily elastically displaced, and when the door 3 is closed, the second bulging portion 9 is reliably elastically contacted with the neck portion 34 of the fitting groove 31. The sealing effect between the second bulging portion 9 and the neck portion 34 is surely exhibited. Further, an elastically displaceable connecting member 10 is provided between the first and second seal portions 6 and 7 to connect the respective members.

Next, the operation of the door weather strip 4 having the above structure will be described. First, when the door 3 is closed from the opening state of the door 3 shown in FIG. 2, as shown in FIG. By elastically contacting the first and second seal portions 6 and 7, the vehicle body opening 2 side is reliably sealed in the gap between the door 3 and the vehicle body opening 2.

When the door 3 is closed, the first and second seals 6 provided on the first seal portion 6 are provided at two positions, that is, the overlapping portion 33 of the door 3 and the neck portion 34 of the fitting groove 31. The bulging portions 8 and 9 are elastically contacted with each other. Therefore, due to the bulging portions 8 and 9, a sealing effect on the inner surface of the peripheral edge of the door 3 is provided in the gap between the door 3 and the vehicle body opening 2. Therefore, rainwater and the like are surely prevented from entering the passenger compartment from the inner surface of the peripheral edge of the door 3.

Further, since the second bulging portion 9 is provided at a boundary portion between the fixed portion 5 and the first seal portion 6 at a portion facing the neck portion 34 of the fitting groove 31, The second bulging portion 9 does not affect the spring rate of the first seal portion 6, and the first seal portion 6 produces a good sealing effect between the door 3 and the vehicle body opening 2. It can be volatilized. Further, since the second bulging portion 9 is provided at a position facing the neck portion 34 of the fitting groove 31 apart from the fixing portion 5, the assembly of the door weather strip 4 to the door 3 side is performed. During the attaching operation, when the fixing portion 5 is fitted into the fitting groove 31 of the door 3, the second bulging portion 9 does not interfere with the mounting workability.

[0018]

[Effect of the device]

 As described above, the door weather strip according to the present invention includes the fixed portion 5 that can be inserted into the fitting groove 31 provided in the peripheral portion of the door 3 and the elastically displaceable with respect to the fixed portion 5. And a seal portion 6 that elastically contacts the vehicle body opening 2 when the door 3 is closed, and the seal portion 6 has a first bulge portion 8 that elastically contacts the inner surface of the peripheral portion of the door 3 when the door 3 is closed. The second bulging portion 9 that is formed and elastically contacts the inner peripheral surface of the peripheral edge portion of the door 3 that is adjacent to the fitting groove 31 when the door 3 is closed at the boundary portion between the fixing portion 5 and the sealing portion 6. Therefore, when the vehicle body opening 2 is closed by the door 3, the first and second bulging portions 8 and 9 are elastically contacted with the inner surface of the peripheral edge portion of the door 3 respectively. The bulging portions 8 and 9 can enhance the sealing effect on the inner surface of the peripheral portion of the door. Te, it is possible to prevent the rain water from the door periphery inside surface from entering the vehicle compartment surely.

The second bulging portion 9 is an inner peripheral surface of the peripheral edge portion of the door 3 which is adjacent to the fitting groove 31 when the door 3 is closed at a boundary portion between the fixed portion 5 and the seal portion 6. Since the second bulging portion 9 does not affect the spring rate of the seal portion 6, since the second bulging portion 9 does not affect the spring rate of the seal portion 6, the good seal between the door 3 and the vehicle body opening portion 2 is achieved. Since the second bulging portion 9 is provided at the boundary portion between the fixed portion 5 and the seal portion 6, that is, at the portion distant from the fixed portion 5, When the fixing portion 5 is fitted into the fitting groove 31 of the door, the second bulging portion 9 does not interfere with the mounting workability.

[Brief description of drawings]

FIG. 1 is a sectional view showing a door weather strip according to the present invention, showing a state in which a door is closed.

FIG. 2 is a cross-sectional view showing the door weather strip, showing a state when the door is opened.

FIG. 3 is a side view with a part of the automobile provided with the door weather strip omitted.

FIG. 4 is a sectional view showing a conventional door weather strip.

[Explanation of symbols]

 2 vehicle body opening part 3 door 31 fitting groove 5 fixing part 6 sealing part 8 first bulging part 9 second bulging part

Continuation of the front page (72) Koichi Terasaki, Koichi Terasaki 2-8, 2 Shino-cho, Nishi-ku, Hiroshima City, Hiroshima Prefecture Nishikawa Rubber Industry Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A door weather strip for closing a gap between a peripheral edge of a door and a vehicle body opening closed by the door, the fitting groove 3 being provided in the peripheral edge of the door.
1 is provided with a fixing portion 5 and a seal portion 6 which is elastically displaceable with respect to the fixing portion 5 and which elastically contacts the vehicle body opening portion when the door is closed. A first bulge portion 8 is formed to elastically contact the inner surface of the peripheral portion of the door when the door is closed, and is adjacent to the fitting groove 31 at the boundary portion between the fixed portion 5 and the seal portion 6 when the door is closed. A door weather strip characterized in that a second bulge portion (9) is formed so as to elastically contact the inner surface of the peripheral portion of the door.