JP2006233472A - Door checker for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an easily manufacturable and inexpensive door checker for an automobile having high sliding stability between a check lever and a case, by allowing mutual smooth rocking of the check lever and the case, when opening and closing a door. <P>SOLUTION: This door checker has the check lever 6 having one side surface formed as a detent surface 9 and having the other side surface formed as a smooth surface 9', the case 1 for penetrating this check lever 6, a shoe 19 stored in this case 1 and slidingly contacting with the detent surface 9, and an elastic member 20 for energizing this shoe 19 to the detent surface 9 side. A fixed support part 25a slidingly contacting with a flat surface 9' of the check lever 6 is formed in the case 1. The case 1 is composed of a case body 1a and a cover 1b joined to this case body 1a and closing its opening surface. A tongue piece 25 having a projecting support part 25a slidingly contacting with the flat surface 9' and superposed on an inner surface of the case body 1a, is integrally extended in its cover 1b. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an automobile door checker, and in particular, is pivotally connected to a bracket fixed to one of a vehicle body and a hinged door via a pivot, with one side being a detent surface and the other side being flat. A check lever having a surface, a through-hole through which the check lever passes, a case fixed to the other of the body and the door, a shoe housed in the case and in sliding contact with the detent surface, And an elastic member that urges the shoe toward the detent surface side, and that the case is provided with a fixed support portion that is slidably contacted with the flat surface of the check lever, and relates to an improvement in an automotive door checker.

Such an automobile door checker is already known as disclosed in Patent Document 1 below.
JP-A-11-270211

  Such an automobile door checker has only one shoe and one elastic member accommodated in the case, and thus has a small number of parts and a simple structure. Therefore, there is an advantage that it can be provided at low cost. However, in the one disclosed in Patent Document 1, the flat surface of the check lever is supported by the flat inner wall surface of the case. Therefore, when the door is opened / closed, the check lever and the check lever Cases may oscillate with each other. In such a case, a twist occurs between the flat surface of the check lever and the inner wall surface of the case, and the smoothness of sliding between the check lever and the case is only impaired. It also causes abnormal noise.

  The present invention has been made in view of such circumstances, and when the door is opened and closed, the check lever and the case can be smoothly swung between each other so that the sliding stability between the check lever and the case is high. Furthermore, an object of the present invention is to provide an automobile door checker that is easy to manufacture and inexpensive.

  In order to achieve the above object, the present invention provides a check lever that is swingably connected to a bracket fixed to one of a body of a vehicle and a door that is hinged to the body, and pivotally connected to the bracket, and has one side as a detent surface. A case that has a through hole through which the check lever passes and is fixed to the other of the body and the door, a shoe that is accommodated in the case and slidably contacts the detent surface, and is accommodated in the case. An automotive door checker comprising: an elastic member that urges the detent surface toward the detent surface; and a fixed support portion that is in sliding contact with a surface of the check lever opposite to the detent surface. The case includes a case body that opens one side and accommodates the shoe and the elastic member, and a cover that is coupled to the case body and closes the open surface. While formed on its cover and that it has extended the tongue to be overlaid on the inner surface of the case body has the sliding contact with the opposite surface projecting bearing integral with the first feature.

  The opposite surface corresponds to a flat surface 9 'in an embodiment of the present invention described later, and the elastic member corresponds to a rubber spring 20 in the embodiment.

  Further, in addition to the first feature, the present invention has a second feature that the protruding support portion is formed in a semi-cylindrical shape.

  Furthermore, in addition to the first or second feature, the present invention has a third feature that the detent surface is formed on the lower surface of the check lever.

  Furthermore, the present invention is characterized in that, in addition to the first or second feature, the detent surface is formed on a side surface in the vertical direction of the check lever.

  According to the first feature of the present invention, when the door is opened and closed, the surface of the check lever opposite to the detent surface is slidably supported by the protruding support portion of the case. Even if the check lever swings with respect to the case due to the condition, etc., the check lever swings smoothly with the protruding support part as a fulcrum, and the surface contacts the case part other than the support part. Therefore, smooth relative sliding between the check lever and the case can be ensured, and abnormal noise can be prevented.

  Further, since the protrusion-shaped support portion is formed on a tongue piece integrally connected to a cover constituting a part of the case, the support portion can be easily formed when the cover is press-molded. Therefore, it is easy to manufacture, and the combination of one shoe and one rubber spring makes it possible to greatly reduce the cost, and to provide an automobile door checker at low cost.

  In addition, the tongue piece itself is low in rigidity, but is superimposed on the inner wall surface of the case body, and the load from the check lever side is borne on the case body with high rigidity, and the check lever is supported without hindrance. be able to.

  According to the second feature of the present invention, since the projection-like support portion is formed in a semi-cylindrical shape, the check lever and the case can be more smoothly swung and slid.

  Furthermore, according to the third feature of the present invention, since the detent surface of the check lever faces downward, it is possible to prevent dust from adhering to and accumulating on the detent surface and to avoid a decrease in check performance due to dust.

  Furthermore, according to the fourth feature of the present invention, the detent surface of the check lever and the surface opposite to the detent surface are arranged in the vertical direction. Can be prevented from adhering and depositing.

  Embodiments of the present invention will be described below on the basis of preferred embodiments of the present invention shown in the accompanying drawings.

  1 is a perspective view of an essential part of an automobile equipped with a door checker according to a first embodiment of the present invention, FIG. 2 is a longitudinal plan view of the door checker of FIG. 1, and FIG. 3 is a sectional view taken along line 3-3 of FIG. 4 is an enlarged sectional view taken along line 4-4 of FIG. 3, FIG. 5 is an exploded perspective view of the door checker, FIG. 6 is a vertical plan view of the door checker according to the second embodiment of the present invention, and FIG. 7-7 is an enlarged sectional view taken along line 7-7, and FIG. 8 is an exploded perspective view of the door checker.

  First, the description starts with the description of the first embodiment of the present invention shown in FIGS.

  In FIG. 1, a door D is connected to a body B of an automobile so as to be able to turn in a horizontal direction via a hinge H so as to open and close its entrance, and between the body B and the door D, the main door D is connected. The door checker C of the invention is attached.

  As shown in FIGS. 2 to 5, the door checker C has a case 1 fixed to the inner surface of the end wall of the door D by a plurality of bolts 2 and 2. The case 1 includes a box-shaped case main body 1a having one side opened and a cover 1b for closing the open surface. The case body 1a is formed with a pair of flanges 21 and 22 projecting in the vertical direction, and the flanges 21 and 22 are formed by a plurality of crimping portions 23 and 23; 24 and 24 formed at both upper and lower ends of the cover 1b. By holding 22, the case body 1 a and the cover 1 b are coupled to each other. The cover 1b and the flanges 21 and 22 of the case body 1a are fixed to the inner surface of the end wall of the door D by a pair of upper and lower bolts 2 and 2. The cover 1b and the case main body 1a are provided with through holes 4 and 5 arranged coaxially with the through hole 3 opened in the end wall of the door D so as to pass through the three through holes 3, 4 and 5. In addition, a check lever 6 is provided.

  The check lever 6 has a boss 10 at the base end protruding outward from the door D, and this boss 10 is rotatably connected to the bracket 7 via a pivot 8 inserted into the shaft hole 9a. The bracket 7 is fixed to the body D with a plurality of bolts 11, 11 with the pivot 8 parallel to the vertical pivot axis Ha of the hinge H.

As shown in FIGS. 3 and 4, the check lever 6 includes a steel plate core plate 6a disposed with its plate surface facing up and down, and a synthetic resin outer shell molded and bonded to the peripheral surface of the core plate 6a. 6b. The outer skin 6b keeps the thickness of the epithelium 6b ₁ covering the upper surface of the core plate 6a constant, and the thickness of the lower skin portion 6b ₂ covering the upper surface of the core plate 6a from the neck portion of the boss 10 to the lever 6 The check lever 6 is formed to have a flat surface 9 ′ and a lower surface of the detent surface 9. A first half-open detent notch 9a, a second half-open notch 9b, and a full-open detent notch 9c are formed on the detent surface 9 in this order from the boss 10 side, and a full-open stopper 12 adjacent to the full-open detent notch 9c is provided.

  As shown in FIG. 3, the fully open stopper 12 includes a stopper plate 15 fixed to the end of the core plate 6a via an anchor pin 14, and a cushion rubber 16 attached to the stopper plate 15 and facing the fully open detent notch 9c. It consists of.

  In the case 1, a single shoe 19 made of synthetic resin that is in sliding contact with the detent surface 9 of the check lever 6 and a rubber spring 20 that presses the shoe 19 against the detent surface 9 are housed. The rubber spring 20 is mounted in a compressed state between the positioning recess 26 on the back surface of the shoe 19 and the inner wall of the case 1 opposite to the positioning recess 26. The shoe 19 includes a semi-cylindrical engagement portion 19a that engages with the first half-open detent notch 9a to the full-open detent notch 9c, and a pair of guide walls 19b that are slidably in contact with both side surfaces of the check lever 6 aligned in the lateral width direction. , 19b are integrally formed.

  On the other hand, on the cover 1b, a tongue piece 25 having a support portion 25a in a protruding shape that slides on the flat surface 9 'of the check lever 6 is integrally extended. The tongue piece 25 is disposed so as to extend from one inner edge of the through hole 3 of the cover 1b toward the case main body 1a and to overlap the inner wall surface of the case main body 1a. The protrusion-like support portion 25a has a semi-cylindrical shape like the engagement portion 19a of the shoe 19.

  Next, the operation of this embodiment will be described.

  When the door D is opened from the closed state, the engaging portion 19a of the shoe 19 climbs while sliding on the upward detent surface 9 of the check lever 6, and the rubber spring 20 is compressed accordingly. The increase in the repulsive force increases the pressure contact force of the shoe 19 against the detent surface 9 and the pressure contact force against the flat surface 9 'of the support portion 25a, and the opening torque of the door D increases accordingly.

  When the door D is opened to a predetermined half-open position, the engaging portion 19a of the shoe 19 falls into the first half-open detent notch 9a or the first half-open detent notch 9b of the detent surface 9 to hold the door D in the predetermined half-open position. can do.

  Further, if a further opening force is applied to the door D so that the engaging portion 19a of the shoe 19 is disengaged from the second half-open detent notch 9b and then the engaging portion 19a is engaged with the fully-open detent notch 9c, the door 19 is fully opened at the same time. When the stopper 12 is received by the case 1, the door D can be stopped and held in the fully open position. Even when the door D is closed from the fully open position, the door D can be held at the predetermined half open position by the engagement of the engaging portion 19a of the shoe 19 with the second half open detent notch 9b or the first half open detent notch 9a. . Moreover, when the engaging part 19a passes the first half-open detent notch 9a, the engaging part 19a descends the detent surface 9, whereby the closing torque of the door D gradually decreases, and the door D can be easily closed. .

  During the opening and closing of the door D, the flat surface 9 ′ of the check lever 6 is slidably supported by the protruding support portion 25 a of the case 1. Even if the check lever 6 swings with respect to the case 1, the check lever 6 swings smoothly with the protruding support portion 25a as a fulcrum, and the flat surface 9 'contacts the case portion other than the support portion 25a. Therefore, smooth relative sliding between the check lever 6 and the case 1 can be ensured, and the occurrence of abnormal noise can be prevented. In particular, it is effective to form the protrusion-like support portion 25a in a semi-cylindrical shape like the engagement portion 19a of the shoe 19 in order to further smooth the swinging and sliding.

  Further, the protrusion-like support portion 25a is formed on the tongue piece 25 integrally connected to the cover 1b constituting a part of the case 1, so that the support portion 25a can be easily formed when the cover 1b is press-molded. Therefore, it is easy to manufacture, and the combination of one shoe 19 and one rubber spring 20 makes it possible to greatly reduce the cost and reduce the cost of the automobile door checker C. Can be provided.

  Moreover, although the tongue piece 25 itself has low rigidity, it is superimposed on the inner wall surface of the case main body 1a so that the load from the flat surface 9 'side of the check lever 6 is borne by the high rigidity case main body 1a. Thus, the flat surface 9 'can be supported without hindrance.

  Further, in the first embodiment, the detent surface 9 of the check lever 6 on which the engaging portion 19a of the shoe 19 slides is disposed downward, so that dust is prevented from accumulating in the detent notches 9a to 9c, and the dust is prevented. It is possible to avoid a decrease in check performance due to.

  Next, a second embodiment of the present invention shown in FIGS. 6 to 8 will be described.

  In the second embodiment, the detent surface 9 and the flat surface 9 ′ of the check lever 6 are arranged in the vertical direction, and the shoe 19 associated therewith operates in the horizontal direction in the case 1. Specifically, wide portions 30 and 30 ′ that extend in the vertical direction are formed on both side ends of the outer skin 6 b covering the core plate 6 a of the check lever 6 along the width direction of the check lever 6. The side surface is formed on the detent surface 9 having the first and second half-open detent notches 9a and 9b and the full-open detent notch 9c, and the side surface of the other wide portion 30 'is formed on the flat surface 9'. Accordingly, the shoe 19, the rubber spring 20, and the tongue piece 25 having the support portion 25a are arranged at a position rotated by 90 ° from the position of the first embodiment. Since the other configuration is the same as that of the first embodiment, the portions corresponding to those of the previous embodiment are denoted by the same reference numerals in FIGS.

  According to the second embodiment, since the detent surface 9 and the flat surface 9 'of the check lever 6 are arranged in the vertical direction, it is possible to prevent dust from accumulating on any of the surfaces 9, 9'. In addition, the same effects as those of the first embodiment can be obtained.

  The present invention is not limited to the above embodiments, and various design changes can be made without departing from the scope of the invention. For example, a roller can be attached as the engaging portion 19 a of the shoe 19, and a metal spring can be used instead of the rubber spring 20.

The principal part perspective view of the motor vehicle which attached the door checker which concerns on 1st Example of this invention. FIG. 2 is a longitudinal plan view of the door checker of FIG. 1. FIG. 3 is a sectional view taken along line 3-3 in FIG. 2. FIG. 4 is an enlarged sectional view taken along line 4-4 of FIG. The exploded perspective view of the door checker. The vertical section top view of the door checker concerning the 2nd example of the present invention. FIG. 7 is an enlarged sectional view taken along line 7-7 in FIG. The exploded perspective view of the door checker.

Explanation of symbols

B ... Body C ... Door checker D ... Door 1 ... Case 1a ... Case body 1b ... Cover 6 ... Check lever 7 ... Bracket 8 .... Axis 9 ... Detent surface 9 '... Surface opposite to detent surface (flat surface)
19 ... Shoe 20 ... elastic member (rubber spring)
25 .. tongue 25a .. support part

Claims (4)

A pivot (8) is pivotally connected to a bracket (7) fixed to one of a vehicle body (B) and a hinged door (D), and one side is detent surface (9). A check lever (6), a case (1) having a through hole (4, 5) through which the check lever (6) passes and fixed to the other of the body (B) and the door (D), A shoe (19) housed in the case (1) and slidably contacting the detent surface (9), and a shoe (19) housed in the case (1) and biasing the shoe (19) toward the detent surface (9) side An elastic member (20), and the case (1) is provided with a fixed support portion (25a) slidably contacting the surface (9 ') of the check lever (6) opposite to the detent surface (9). In the formed automotive door checker,
One side of the case (1) is opened and a case main body (1a) for accommodating the shoe (19) and the elastic member (20) is coupled to the case main body (1a) to close the open surface. The cover (1b) has a protrusion-like support portion (25a) that is in sliding contact with the opposite surface (9 '), and the cover (1b) has an inner surface of the case body (1a). An automotive door checker characterized in that tongues (25) to be stacked are integrally extended. The automobile door checker according to claim 1,
A door checker for an automobile, wherein the protruding support portion (25a) is formed in a semi-cylindrical shape. The automobile door checker according to claim 1 or 2,
The automobile door checker characterized in that the detent surface (9) is formed on the lower surface of the check lever (6). The automobile door checker according to claim 1 or 2,
An automotive door checker characterized in that the detent surface (9) is formed on a vertical side surface of the check lever (6).

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