JP2002235476A - Door check device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To open a door only to a usual opening area and prevent the door from being inadvertently opened to a large opening area unless it is intentionally opened with strong force. SOLUTION: A door check device has the large opening area which is not used normally. The operation resistance at the time when the opening of the door 20 is shifted from the usual opening area R1 to the large opening area R2 is set larger than the operation resistance at any opening position in the usual opening area R1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door check device for regulating an opening position of a side door of an automobile.

[0002]

2. Description of the Related Art As this type of door check device, for example, a technology disclosed in Japanese Utility Model Laid-Open Publication No. 7-14058 is known. In this technology, a check arm attached to a vehicle body and a check case attached to a door side move relatively by opening and closing a side door. The arm has a locking portion at a position corresponding to each of the half-open position and the fully-open position of the door. In addition, the check case has a built-in roller that is elastically pressed against both surfaces of the arm, and these rollers are positioned at the locking portion of the arm, so that the door operation has a sense of moderation. ing.

On the other hand, in recent automobiles, the side door exceeds an opening degree (approximately 63 °) suitable for normal getting on and off in order to adopt a seat lift-up mechanism or the like for assisting getting on and off of a disabled person or an elderly person. A technology has been developed to open the valve to a large opening range of about 90 ° when fully opened. The seat lift-up mechanism is, for example, a mechanism capable of rotating a passenger seat side seat from a normal direction toward a side surface of the vehicle body and then lowering the seat from a normal height to a lower position.
The large opening range may be 90 ° or less (about 70 °) or 90 ° or more (about 120 °).

[0004]

When the door check device disclosed in the above publication is applied to a door having the above-mentioned wide opening range, when the door is opened, it exceeds the normal opening range and opens at a stretch. There is a possibility that it will open up to the full opening of the temperature range. If the door is inadvertently opened to the large opening range in this manner, the door may not be reachable even when trying to close the seat in a seated position, and the door may hit surrounding objects when the parking space is narrow. Therefore, in order to prevent the door from being inadvertently opened to the large opening range, it is possible to modify the door check device and set a large operating resistance when the door is opened. The burden on the occupants in operating the doors at the door is large, which is not realistic.

The object of the present invention is to solve the above-mentioned problem, and the object is to open the door only to a normal opening range unless the door is intentionally opened with a strong force. It is to prevent that.

[0006]

According to the present invention, there is provided a door check device having a large opening range which is not normally used.
The operation resistance when the opening of the door shifts from the normal opening range to the large opening range is set to be larger than the operation resistance at any opening position in the normal opening range. Therefore, due to the operational resistance when shifting from the normal opening range to the large opening range, when using a normal operating force, the door only opens to the normal opening range, and when the door is intentionally opened with a strong force, As long as it can be opened up to the large opening range. For this reason, it is possible to prevent the door from inadvertently opening to the large opening range.

According to a second aspect of the present invention, there is provided the door checking device according to the first aspect, wherein the door shifts from a normal opening range to a large opening range between a fully closed position and a fully opened position of the door. A moderation mechanism is provided at a plurality of opening positions including the location to give a sense of moderation to the operation of opening the door. According to this configuration, the degree of opening of the door can be easily recognized by the sense of moderation, and the recognition when the normal opening area and the large opening area are properly used can be easily recognized.

According to a third aspect of the present invention, there is provided the door checking device according to the second aspect, wherein at least one moderation mechanism is set in the normal opening range, and the moderation mechanism is provided. The operating resistance of the moderation mechanism at the point where the normal opening range shifts to the large opening range is set to be larger than the operating resistance. That is, a function of preventing the door from being carelessly opened to the large opening range due to the difference in operation resistance between these moderation mechanisms can be achieved with a simple configuration. As described in claim 4, the operation resistance of the moderation mechanism at the point where the normal opening range shifts to the large opening range is set to about 1.5 times the operation resistance of the moderation mechanism in the normal opening range. However, it may be set to 1.5 times or more.

[0009] The invention according to claim 5 is the invention according to claims 1, 2, and
The door check device according to 3 or 4, wherein the door is a side door of a vehicle, and a normal opening range of the door is set to a range of an opening that allows normal getting on and off the vehicle, The large opening range exceeds the normal opening range and is set to a range where the fully open position is at a rotation angle of about 90 ° from the fully closed position of the door. In this way, in the side door of the vehicle, by setting the normal opening range and the large opening range as described above, in the normal opening range, a normal getting on and off,
In the large opening range, the door opening is suitable for using a seat lift-up mechanism for assisting a person who has difficulty getting on and off by himself or for loading and unloading a large load.

[0010]

Embodiments of the present invention will be described below. First, a door check device will be described with reference to FIGS. FIG. 1 is a plan view showing a door check device, and FIG. 2 is a front view showing the door check device in a partial cross section. As apparent from these drawings, the configuration of the door check device is roughly divided into an arm 70 attached to the side of the vehicle body 10 and a check case 80 attached to the side door 20 described later.

The arm 70 is formed by laminating two long plate members 70a each having a predetermined width, and has one end 72 such that the plate surface is substantially horizontal.
Is attached to the vehicle body 10 via a bush 74. The other end 73 of the arm 70 is the side door 2
No. 0 penetrates the end face (the same plane as the hinge mounting portion 24 described later) and is inserted into the check case 80.

Although the two plate members 70a are joined to each other at both ends 72 and 73 of the arm 70, the other portions are spaced apart from each other to increase the thickness of the arm 70. However, this thickness is not constant, and changes repeatedly in the length direction of the arm 70. When this change in thickness is viewed in order from one end 72 of the arm 70 to the other end 73, the thickness gradually increases first to form the first flat portion A1. The flat portion A1 is a portion where the thickness of the arm 70 is maximum and both plate surfaces are substantially parallel, including the second and third flat portions A2 and A3 described below.

After passing the flat portion A1, the two plate members 70
There is a locking recess B which is curved in a direction to approach a, followed by another locking recess C via the second flat portion A2. Then, a locking portion D is formed in which the thickness of the arm 70 gradually decreases from the locking concave portion C via the third flat portion A3. It should be noted that the locking recesses C are also used for both plate members 7.
0a are bent in a direction to approach each other. However, these locking recesses B and C have different inclination angles of the slopes 76 and 78 on the side toward the end 73 of the arm 70, respectively. That is, the inclination angle of the locking concave portion C on the inclined surface 78 is set larger than that of the locking concave portion B.

In the check case 80, the base plate 83 of the case body 82 is fixed to the end surface of the side door 20 (the same surface as the hinge mounting portion 24 described later). Inside the case body 82, a pair of cushions 84, shoes 86, and rollers 88 are individually incorporated (FIG. 2). An arm 70 is inserted between these rollers 88, and the rollers 88 receive the elastic force of the cushion 84 via the respective shoes 86 and are pressed against both plate surfaces of the arm 70.

As the side door 20 is opened and closed, the check case 80 relatively moves along the length of the arm 70, and the roller 88 slides in contact with both plate surfaces of the arm 70. The sliding resistance at this time is determined by the thickness of the arm 70, and this is
This is the operational resistance to opening and closing. Note that the positional relationship between the arm 70 and the check case 80 shown in FIGS. 1 and 2 shows a state in which the side door 20 is at a full open position of about 90 ° as described below.

FIG. 3 is a plan view schematically showing the opening / closing operation of the side door 20. As shown in FIG. In this drawing, an arrow Fr
Indicates the front direction of the vehicle. As is apparent from FIG. 3, the side door 20 in the present embodiment has a normal opening range R1 suitable for normal getting on and off and a large opening range R2 exceeding the normal opening range R1. Generally, the normal opening range R1 has a maximum opening of about 63 °, and the large opening range R2 has a purpose of adopting a seat lift-up mechanism or the like for assisting getting on and off of a disabled person or an elderly person, and is about 90 °. Is set as the maximum opening (door fully open).

As shown in FIG. 3, the flat portion A of the arm 70 in the door check device is located in the normal opening range R1.
1, A2 and the locking recess B are located. The boundary between the normal opening range R1 and the large opening range R2 is the arm 70.
Corresponds to the locking concave portion C. In this large opening range R2,
There is a flat portion A3 of the arm 70 and the side door 2
The fully open position of 0 (about 90 °) corresponds to the locking portion D of the arm 70.

FIG. 4 is a graph showing the relationship between the door opening degree when the side door 20 is opened and the operation resistance (moment). Note that the moment characteristic when the side door 20 is closed is slightly different from the characteristic when the side door 20 is opened, but since that is not so important, the description is omitted. Now, the function of the door check device accompanying the opening operation of the side door 20 will be described with reference to FIG. First, when the side door 20 starts to open from the fully closed position, the roller 88 moves to the locking recess B through the flat portion A1 of the arm 70 due to the relative movement between the arm 70 and the check case 80 of the door check device. I do. Thereby, the operation of the side door 20 in the normal opening range R1 can be given a sense of moderation, which corresponds to the half-open position of the door in the normal opening range R1.

The side door 20 is further moved from the half-open position.
When the roller 88 is to be opened, the roller 88
, The operating resistance (moment) of the door sharply increases with a peak of about 37 N · m (FIG. 4). By this operation resistance, the opening operation of the side door 20 can be temporarily stopped at the half-open position of the normal opening range R1, which is the same as the function provided in a general automobile side door.

When the side door 20 is further opened from the half-open position in the normal opening range R1, the roller 88 is located in the locking concave portion C via the flat portion A2. The sense of moderation at this time makes it possible to recognize that the side door 20 has reached the maximum opening in the normal opening range R1. In order to open the side door 20 beyond the normal opening range R1, the roller 88 must ride over the inclined surface 78 of the locking concave portion C. For this purpose, the operation resistance (moment) of the door is about 55 N · m. It sharply increases as a peak (FIG. 4). That is, the operation resistance at this time is approximately equal to the operation resistance (F) due to the locking recess B.
It is set to 1.5 times or more. For this reason, the side door 20
Cannot be opened beyond the normal opening range R1 to the large opening range R2 unless the door is intentionally opened with a strong force.
0 can be prevented from inadvertently opening up to the large opening range R2. In order to make the operating resistance of the locking recess C approximately 1.5 times or more the operating resistance of the locking recess B, the inclination angle of the inclined surface 78 in the locking recess C may be set as such.

When the side door 20 is intentionally opened to the wide opening region R2, when the roller 88 is positioned at the locking portion D via the flat portion A3 (FIG. 2), the side door 20 is moved to the wide opening region R2.
At the maximum opening (about 90 °). Thus, it is possible to cope with the adoption of the above-described seat lift-up mechanism or the loading and unloading of large-sized luggage. The locking recesses B and C of the arm 70 in the door check device and the rollers 88 of the check case 80 constitute a "moderation mechanism" for giving a sense of moderation to the door operation as described above. Thereby, the half-open position of the door can be easily recognized in the normal opening range R1, and the recognition when the normal opening range R1 and the large opening range R2 are properly used becomes easy.

Next, a door hinge structure capable of opening the side door 20 to the wide opening range R2 will be described with reference to FIGS. FIG. 5 is a plan view showing a cross section of the structure of the door hinge for the side door. In this drawing, as in FIG. 3, the arrow Fr indicates the front direction of the vehicle. The vehicle body 10 includes an outer panel 12 and an inner panel 13, and a pillar 14 is located inside the inner panel 13. The outer surface of the pillar 14 serves as a hinge mounting portion 15 and has a mounting hole 16 formed therein. On the other hand, the side door 20 has a door outer panel 22 and a door inner panel 2.
3 and the door inner panel 2
A part of 3 is a hinge mounting part 24. When the side door 20 is a front door, the pillar 14 is a front pillar, and when the side door 20 is a rear door, it is a center pillar.

The side door 20 is a pillar 1 of the vehicle body 10.
4 is mounted so that it can be opened and closed by a door hinge 30. In general, the door hinges 30 are provided at two upper and lower locations per one side door 20,
Only one is shown in the drawing. This door hinge 30
Is a female 32 (fixed hinge member) attached to the hinge attachment portion 15 of the pillar 14, and the side door 2
And a mail 50 (movable hinge member) attached to the hinge attachment portion 24 of the first position.

FIG. 6 is an exploded perspective view showing the aforementioned mail 32 together with its related parts, and FIG.
FIG. First, the female 32 has a structure in which supporting arms 36 are integrally formed on both sides of a base 33 thereof. The base 33 has two insertion holes 34, and support holes 38 are provided near the ends of both support arms 36, respectively. This base 33 passes the bolt 18 through the insertion hole 34 and the mounting hole 16 of the hinge mounting portion 15 in the pillar 14,
It is attached to the hinge attachment portion 15 by tightening the nut 19 (FIG. 5). In the support hole 38 of the support arm 36, both ends of a shaft 49 of a large gear 48, which will be described below, are supported in a non-rotatable manner. This shaft 4
Reference numeral 9 functions as a hinge pin (hinge center) as described later.

Both support arms 36 of the female mail 32
The guide body 40 assembled on the inside has a structure in which a pair of plates 41 are mutually connected by a connecting part 44. A support hole 42 is provided near one end of each of the plates 41, and guide pieces 43 projecting inward from each other are integrally formed at the other end. A gear 46 is provided between the two plates 41.
(Pinion) and a large gear 48 meshing with the pinion are respectively assembled. For the gear 46, the guide 4
Any structure may be used as long as it is rotatably supported with respect to zero. For example, shaft portions 47 integrally formed on the rotation shaft center portions at both end surfaces of the gear 46 are rotatably supported on both plates 41 respectively.

On the other hand, the gear wheel 48 needs to be fixed to the female 32, and the guide body 40 needs to be mounted inside the supporting arms 36 so as to be rotatable with respect to the shaft 49 of the gear wheel 48. There is. So the large gear 48
And the shaft 49 are formed separately, and the guide body 40 in the state of FIG.
Between the two supporting arms 36 and the large gear 48 between the two plates 4.
1 each. The support holes 38 of both support arms 36, the support holes 42 of both plates 41 and the large gear 4
The shaft 49 is inserted from one side of the support arm 36 to the other side in a state where the axial holes 8 are aligned. Note that the large gear 48 and the shaft 4
Reference numeral 9 denotes a structure that rotates integrally by serration fitting or the like, and both ends of the shaft 49 are fixed to both support arms 36 by welding or the like.

The mail 50 is tightened by passing bolts 28 through two insertion holes 52 formed in the base 51 and a mounting hole (not shown) formed in the hinge mounting portion 24 of the side door 20. It is attached to this hinge attachment part 24 (FIG. 5). Also mail 50
Has a rack member 56 integral with the base 51.
The rack member 56 is set to have a width that can be inserted between the two plates 41 of the guide body 40, and has rack teeth 57 that mesh with the gear 46 on its front surface.

That is, the rack member 56 is installed between the two guide pieces 43 and the gear 46 before connecting the two plates 41 of the guide body 40. As a result, the rack teeth 57 and the gear 46 mesh with each other, and the rear surface 60 of the rack member 56 is received by the inner surfaces of the guide pieces 43 (FIG. 5). The guide body 40 (both plates 41 and the connecting part 4) is provided at the tip of the rack member 56.
4), an eaves portion 58 that can be contacted is formed. A retainer 62 that receives the outer surfaces of the two guide pieces 43 is formed on the base 51 at a position facing the back surface 60 of the rack member 56. Further, receiving portions 54 are provided on both front sides of the rack member 56 in the base 51, and receive the guide members 40 in a state where the side door 20 is closed (FIG. 5).

Next, the function of the door hinge 30 configured as described above will be described. When the side door 20 starts to be opened from the closed state shown in FIG.
Guide member 40 through meshing with gear 46
The mail 50 and the guide body 40 rotate around the axis of the shaft 49 (hinge pin). As the guide body 40 rotates, the gear 46 moves as a planetary gear using the large gear 48 as a sun gear. That is, the gear 46 revolves in the counterclockwise direction in FIG. 5 while revolving along the large gear 48. This gear 46
The rack member 56 moves obliquely right rearward in FIG. 5 while being guided by the guide pieces 43 of the guide body 40 due to the rotation of.

As a result, the mail 50, that is, the side door 20 is sent out of the vehicle body 10 through the engagement between the gear 46 and the rack member 56 while rotating around the axis of the shaft 49. In FIG. 8 showing this state, an imaginary line indicates that the side door 20 has an intermediate opening (normal opening range R).
1 maximum opening degree), and the solid line indicates a large opening range R2.
At the maximum opening (approximately 90 °). As is apparent from this drawing, the locus L1 drawn by the edge 21 when the side door 20 is opened is compared with the locus when a conventional door hinge is used, by the distance and the substantial turning radius. Is significantly reduced. When the side door 20 is opened to the maximum, the eave portion 58 of the rack member 56 hits the guide body 40 (solid line in FIG. 8), thereby performing a stopper function.

Thus, the edge 21 of the side door 20
Can be prevented from interfering with the female 32, and the maximum opening of the side door 20 in the large opening range R2 can be increased to about 90 °. As a result, for example, a side door 20 required for an automobile employing a seat lift-up mechanism
Can be easily dealt with.

The function of the door hinge 30 utilizes a combination of a planetary gear mechanism and a rack and pinion constituted by the gear 46, the large gear 48 and the rack member 56, and the door hinge 30 can be compactly housed. Therefore, the door hinge 30 can be employed without changing the shape of the hinge attachment portion 15 of the pillar 14 or the hinge attachment portion 24 of the side door 20 or the attachment position of the hinge members 32, 50. In other words, the door hinge 80 is replaced with the door hinge 3.
0, the full open position of the side door 20 is about 90
Can be set to ゜.

By adopting the door hinge 30 as described above, the side door 20 having a large opening range R2 exceeding the normal opening range R1 is realized. By applying the door check device to the side door 20,
The advantageous function as the door check device already described can be sufficiently exhibited.

[Brief description of the drawings]

FIG. 1 is a plan view showing a door check device.

FIG. 2 is a front view showing the door check device in a partial cross section.

FIG. 3 is a plan view schematically showing an opening / closing operation of a side door.

FIG. 4 is a graph showing a relationship between a door opening and an operation resistance (moment) when a side door is opened.

FIG. 5 is a plan view showing a cross section of a structure of a door hinge for a side door.

FIG. 6 is an exploded perspective view showing the female together with its related parts.

FIG. 7 is a perspective view showing a mail.

FIG. 8 is a plan view showing the movement of the door hinge in correspondence with FIG. 5;

[Explanation of symbols]

 Reference Signs List 20 Door (side door) 70 Arm 80 Check case 88 Roller B Locking recess C Locking recess R1 Normal opening range R2 Large opening range

Claims (5)

[Claims] 1. A door check device having a large opening range that is not normally used, wherein the operation resistance when the door opening shifts from the normal opening range to the large opening range is any opening resistance in the normal opening range. Door check device that is set to be larger than the operating resistance at the degree position. 2. The door check device according to claim 1, wherein a plurality of openings including a portion that shifts from a normal opening range to a large opening range between a fully closed position and a fully opened position of the door. A door check device in which a moderation mechanism is set at a position to give a sense of moderation to the operation of opening the door. 3. The door checking device according to claim 2, wherein at least one moderation mechanism is set in the normal opening range, and the normal opening is smaller than the operation resistance of the moderation mechanism. Checking device for the door where the operation resistance of the moderation mechanism at the point where the transition from the area to the large opening area is set is larger. 4. The door check device according to claim 3, wherein the operation resistance of the moderating mechanism at a position where the normal opening range shifts to the large opening range is operated by the moderating mechanism in the normal opening range. Door checker set to about 1.5 times the resistance. 5. The door check device according to claim 1, wherein the door is a side door of a vehicle, and a normal opening range of the door is a normal entry / exit for the vehicle. The door is set to a range where the opening is possible, the large opening range exceeds the normal opening range, and the fully open position is set to a range where the rotation angle of the door is about 90 ° from the fully closed position of the door apparatus.