Vehicle door opening degree limiter

Abstract

The utility model provides a vehicle door opening degree limiting device for vehicle, has the structure that can prevent water from being immersed to the device and also can easily discharge to the outside when water is immersed. The vehicle door opening degree limiting device for vehicle has: a housing fixed to either one of a door and a vehicle body; an arm passing through a first opening portion and a through space, with a shaft portion connected to the other one of the door and the vehicle body; a full opening stopper provided at the other end of the arm, abutting against an abutting surface to limit the full opening position of the door; an intermediate portion provided between one end and the other end of the arm and having a stop surface; a slide shoe accommodated in the housing, sliding on the stop surface with the opening and closing action of the door; a spring accommodated in the housing, applying force to the slide shoe; a stop plate maintaining the spring in a compressed state, the housing has: a cylindrical portion having an accommodation portion accommodating the slide shoe and the spring; a slit allowing the stop plate to pass through the side surface of the cylindrical portion, the stop plate is inserted into the slit and protrudes into the accommodation portion, and the slit forms a gap by the force applied by the stop plate through the spring.

Description

Technical Field

[0001] This utility model relates to a vehicle door opening limit device having a resin housing, and in particular to a vehicle door opening limit device that takes into account preventing water from entering the vehicle door opening limit device and draining the entered water. Background Technology

[0002] A vehicle door opening limiter includes: a housing fixed to either the vehicle door or the vehicle body; an arm, one end of which is pivotally connected to the other of the vehicle door and the vehicle body, and the other end having a fully open stop; and a slide housed within the housing, which slides as the door opens and closes. In this vehicle door opening limiter, as the door opens and closes, the slide slides on the stop surface of the arm, thereby applying a predetermined resistance (limiting force) to the opening and closing action of the door, thus holding the door in a predetermined open position. The arm is formed by covering the entire outer surface of a single steel plate with a layer of synthetic resin.

[0003] Patent Document 1 provides a door opening limit device for automobiles, which achieves weight reduction and reduces abnormal noises caused by friction by forming a retaining member from a synthetic resin housing and a synthetic resin cover bonded to the housing. However, there is room for improvement regarding the immersion of water into the door opening limit device for automobiles.

[0004] Patent Document 2 provides a door opening limit device that can suppress the impact of rainwater intrusion, dust, and other contaminants on the opening and closing of the door. It employs a structure in which a through-hole is provided at the location where the peripheral wall constituting the storage section slides into contact with the sliding contact section. This through-hole extends from the inner surface of the peripheral wall toward the outer surface and away from the limiting arm to drain water. However, there is a problem that water that is not completely drained through the through-hole accumulates at the bottom of the storage section.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent No. 6911261

[0008] Patent Document 2: Japanese Patent Application Publication No. 2018-053560 Utility Model Content

[0009] Problems to be solved by utility models

[0010] This invention was made in view of the above-mentioned problems, and its purpose is to provide a vehicle door opening limit device, which has a structure that can prevent water from entering the vehicle door opening limit device and can easily drain water to the outside even if water enters.

[0011] Solution for solving the problem

[0012] According to this utility model, the above-mentioned problems are solved as follows.

[0013] (1) The first technical solution provides a vehicle door opening limiting device, comprising: a housing made of synthetic resin, which is fixed to either a door or a vehicle body; an arm that passes through a first opening and a through space provided in the housing, and whose shaft portion at one end is flexibly connected to the other of the door and the vehicle body; a full-opening stop member provided at the other end of the arm, which restricts the full-opening position of the door by abutting against an abutting surface located on the opening surface of the housing; a middle portion provided between the one end and the other end of the arm and having a stop surface with concave and convex surfaces in the vertical direction; and a sliding shoe housed within the housing, accompanied by... The sliding surface of the arm slides on the upper and lower surfaces of the stop surface of the arm in response to the opening and closing action of the door; a spring, which is housed in the housing, applies force to the upper and lower surfaces of the sliding shoe facing the stop surface; and a stop plate, which holds the spring in a compressed state within the housing. The housing includes: a cylindrical portion having a receiving portion for receiving the sliding shoe and the spring respectively; and a slit that allows the stop plate to be inserted through the side of the cylindrical portion. The stop plate protrudes toward the receiving portion by being inserted into the slit, and the slit forms a gap in the vertical direction of the slit by the force applied by the spring from the stop plate inserted into the slit.

[0014] By applying force to the spring using a stop plate inserted into the slit, a gap is created in the upper part of the slit on the lower side, allowing water that has seeped into the housing to be efficiently drained. Therefore, the risk of obstructing smooth operation due to freezing or rust is reduced, ensuring the long-term stable operation of the vehicle door opening limit device.

[0015] (2) The second technical solution is based on the vehicle door opening limit device described in (1) above, characterized in that, when the opening surface is viewed from the front, the vehicle door opening limit device is vertically symmetrical and / or horizontally symmetrical with the center of the first opening of the housing as the boundary.

[0016] Because it has no orientation (up, down, left, or right), it can be used without being restricted to specific door types. This allows for component standardization and reduces the risk of assembly errors, thus contributing to cost reduction. Furthermore, since the housing is integrally formed without any partitions, its strength can be further enhanced.

[0017] (3) The third technical solution is a vehicle door opening limit device according to (1) or (2) above, characterized in that the width of the gap of the slit is larger at both ends in the left-right direction than at the center.

[0018] By narrowing the opening of the slit when inserting the stop plate, it is possible to ensure drainage while preventing dust intrusion and maintaining strength. Furthermore, by narrowing the opening in the center to restrain the outer periphery of the spring, a stable force can be applied to the stop plate, ensuring long-term stable operation. Moreover, due to the surface tension of water, water is drawn to the wider ends of the gap, thus effectively draining water. Even if water remains inside the housing, it is only about the height of the spring end face; even if the remaining water inside the housing freezes, the spring can still reliably apply force to the surface of the stop face of the slide towards the arm.

[0019] (4) The fourth technical solution is a vehicle door opening limit device according to (1) or (2) above, characterized in that a load-bearing part is provided in the cylindrical part of the housing to bear the load of the spring, the stop plate is inserted into the slit provided between the receiving part and the load-bearing part, and the stop plate is in close contact with the load-bearing part around the circumference when the spring applies force.

[0020] Because the stop plate is in close contact with the load-bearing part throughout the circumference, it can prevent water from seeping into the housing through the upper opening, reducing the risk of hindering smooth operation due to freezing or rust. Therefore, the vehicle door opening limit device can operate stably for a long time.

[0021] (5) The fifth technical solution is a vehicle door opening limit device according to (1) or (2) above, characterized in that the cylindrical part is provided with a groove in a direction orthogonal to the forward and backward direction of the arm at a position on the outer side of the stop plate in the vertical direction, and the groove is connected to the opening hole.

[0022] By draining water accumulated on the stop plate of the upper opening, the risk of water entering the housing can be reduced. Furthermore, by draining water in a direction perpendicular to the arm's forward and backward movement, the risk of water flowing down onto the arm and re-entering the housing can be reduced. Therefore, the risk of freezing or rust hindering the smooth operation of the vehicle door opening limit device can be reduced, ensuring long-term stable operation.

[0023] (6) The sixth technical solution is a vehicle door opening limit device according to (1) or (2) above, characterized in that a protrusion is provided in the slit of the housing, and a locking part is provided in the stop plate to engage with the protrusion. When the stop plate is inserted into the slit, the protrusion engages with the locking part.

[0024] Because it can prevent the stop plate from shifting its insertion position, it can ensure that the force applied to the spring operates stably and can reliably prevent water from seeping in through the opening.

[0025] (7) The seventh technical solution is a vehicle door opening limit device according to (1) or (2) above, characterized in that the slide is provided with a spring storage part as a space for storing at least a part of the spring, and a through hole is provided at the bottom or side of the spring storage part in such a way as to be connected to the outer peripheral surface of the slide.

[0026] When the through hole is positioned orthogonal to the arm's forward and backward movement, it is adjacent to the housing and makes drainage difficult. On the other hand, by positioning it in the same direction as the arm's forward and backward movement, the space in front of the drainage through the lower slit can be expanded. Therefore, water in the upper slider can be drained efficiently, preventing water from remaining in the housing, reducing the risk of freezing or rust hindering smooth operation, and enabling the vehicle door opening limit device to operate stably for a long time.

[0027] Effects of the utility model

[0028] According to this invention, even when water is submerged inside the housing of the vehicle door opening limit device, by applying force to the spring using a stop plate inserted into the slit, a gap can be formed in the vertical direction of the slit, allowing water to be efficiently drained from the housing. Therefore, the risk of obstructing smooth operation due to freezing or rust can be reduced, thus enabling the vehicle door opening limit device to operate stably for a long period. Attached Figure Description

[0029] Figure 1 This is a perspective view of a vehicle door opening limit device with a resin shell according to one embodiment of the present invention.

[0030] Figure 2 yes Figure 1 An exploded perspective view of a vehicle door opening limit device.

[0031] Figure 3 yes Figure 1 A side view of the arm in a vehicle door opening limit device.

[0032] Figure 4 This is a front view of the housing of a vehicle door opening limit device equipped with a sliding track.

[0033] Figure 5 Viewed from the front side Figure 4 A three-dimensional view of the shell.

[0034] Figure 6 Viewed from the back side Figure 4 A three-dimensional view of the shell.

[0035] Figure 7 It is set in Figure 4 An enlarged view of the slit in the lower cylindrical part of the shell.

[0036] Figure 8 yes Figure 4 A perspective view of the load-bearing part of the upper cylindrical section of the shell.

[0037] Figure 9 It means Figure 8 A cross-sectional view of the internal structure of the cylindrical section.

[0038] Figure 10 The diagram shows the protrusion provided in the slit and the engaging portion provided in the stop plate as a variation of this utility model.

[0039] Figure 11 yes Figure 10 Top view.

[0040] Figure 12 This diagram shows the interior of the spring storage section located in the sliding shoe.

[0041] Figure 13 Viewed from the outside Figure 12 A diagram of a sliding shoe.

[0042] Explanation of reference numerals in the attached figures

[0043] 1. Vehicle door opening limit device; 2. Arm; 2A. Steel plate; 2B. Hook; 21. Pivot shaft; 22. Shaft; 23. Intermediate part; 24. Stop surface; 3. Housing; 30. Main body; 31. Storage part; 32. Insertion space; 33. First opening; 34. Closing component; 35. Second opening; 36. Opening surface (abutment surface); 37. Side wall; 38. Mounting surface; 4. Full-opening stop; 5. Slipper; 51. Protrusion; 55. Spring storage part; 56. Through hole; 6. Spring; 7. Stop plate; 70. Cylinder; 71. Slit; 72. First engaging part; 73. Second engaging part; 75. Load bearing part; 76. Opening hole; 77. Groove; 78. First protrusion; 79. Second protrusion; 10. Bolt; 11. Bracket; O1. Center of the first opening. Detailed Implementation

[0044] Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.

[0045] Figure 1 This is a perspective view of a vehicle door opening limit device (hereinafter referred to as a door opening limit device) with a resin housing according to one embodiment of the present invention. Figure 2 yes Figure 1 An exploded perspective view of the door opening limit device. Figure 3 yes Figure 1 A side view of the arm of the door opening limit device. Figures 4-6 express Figure 1 The detailed structure of the housing of the door opening limit device.

[0046] The door opening limit device 1 includes: a housing 3 made of synthetic resin, which is fixed to either the vehicle door or the vehicle body; and an arm 2, one end of which is flexibly connected to the other of the vehicle door and the vehicle body. The housing 3 is a component formed by integrating a box-shaped main body 30 made of synthetic resin and a rubber plate-shaped closing member 34.

[0047] It should be noted that the following description is of an example in which the housing 3 is fixed to the vehicle door and one end of the arm is pivotally supported on the vehicle body.

[0048] A shaft portion 22 is provided at one end of the arm 2. This shaft portion 22 has a shaft hole for inserting a pivot shaft 21. The arm 2 is rotatably held in place of the vehicle body via the pivot shaft 21 inserted into the shaft hole of the shaft portion 22 and the bracket 11. The other end of the arm 2 is configured as a fully open stop 4. The fully open stop 4 abuts against the housing 3 at the opening surface 36 (see reference). Figure 4 , Figure 5 The opening surface 36 is formed on the side opposite to the closing member 34 to restrict the door from being fully open.

[0049] Furthermore, the arm 2 has an intermediate portion 23 between a shaft portion 22 at one end and a fully open stop member 4 formed at the other end. This intermediate portion 23 is provided with a stop surface 24 extending in the longitudinal direction of the arm 2 and having irregularities in the vertical direction. This stop surface 24, by alternately providing protrusions and recesses along the length direction (front-back direction) of the arm, imparts a limiting force (resistance) to the opening and closing action of the door D. One end of the arm 2, the shaft portion 22, extends through a rectangular first opening 33 located at the center of the opening surface 36 of the housing 3, through a through-space 32 within the housing 3, and further extends to the front side of the housing 3 via a rectangular second opening 35 of the closing member 34 of the housing 3.

[0050] The main body 30 of the housing 3 has cylindrical portions 70 and 70 at its top and bottom, respectively. Each cylindrical portion 70 has a housing portion 31 for housing the sliding shoes 5 and the springs 6. The housing portion 31 houses a pair of sliding shoes 5, a pair of springs 6, and a pair of stop plates 7 (see reference). Figure 2 A metal stop plate 7 holds the spring 6 in a compressed state within the main body 30 of the housing 3, and the spring 6 exerts force on the surface of the slide 5 toward the stop surface 24 of the arm 2. Thus, the slide 5 is configured to slide on the surface of the stop surface 24 of the arm 2 in conjunction with the opening and closing of the door.

[0051] Figure 3 This is a side view of arm 2.

[0052] Arm 2 is constructed by covering the surface of a rigid metal component, such as a single steel plate 2A, with a layer of synthetic resin. The steel plate 2A is formed with its length oriented in the front-to-back direction, and a hook 2B is provided at the rear end where a fully open stop 4 is located. This hook 2B is twisted 90 degrees by a torsion process (twisting process) so that the plate surface changes from the horizontal direction to the vertical direction. When viewed from the side, the hook 2B is approximately transversely T-shaped.

[0053] like Figure 4 As shown, in the door opening limiting device 1 of this utility model, when viewed from the front, the first opening 33 of the housing 3 is vertically and / or horizontally symmetrical, with the longitudinal line segment AA and the horizontal line segment BB passing through the center of the first opening 33, i.e., the center O1 of the main body 30, as the boundaries. Thus, the door opening limiting device 1 has no orientation in any direction (up, down, left, or right), does not select the left or right door, and therefore enables component standardization and reduces the risk of assembly errors, thereby contributing to cost reduction. Furthermore, since the housing 3 is integrally formed without being divided, the strength of the housing 3 can be improved.

[0054] Furthermore, as described above, the door opening limit device 1 of this utility model has a symmetrical structure with the horizontal line segment BB as the boundary. Therefore, in the following description, in order to avoid repetition, the descriptions of the upper and lower sliding shoes 5, 5, the upper and lower springs 6, 6, and the upper and lower stop plates 7, 7 are understood as descriptions of the lower or upper elements, respectively.

[0055] Figure 5 Viewed from the front side Figure 4 A three-dimensional view of the shell 3. Figure 6 Viewed from the back side Figure 4 The perspective view of the housing 3 is shown, omitting the closing member 34. The housing 3 is made of synthetic resin and has a box-shaped appearance, roughly a quadrangular prism shape. The main body 30 has an opening surface 36 that functions as a contact surface against the fully open stop member 4, left and right side walls 37, and a mounting surface 38 on the opposite side of the opening surface 36 that is used for mounting to the vehicle door. This mounting surface 38 is fixed to the vehicle door by two bolts 10. The bolts 10 are fixed in such a way that the head of the bolt 10 is embedded in the door-mounting mounting surface 38 of the housing 3.

[0056] Figure 7 This is an enlarged view of the slit 71 in the lower cylindrical portion 70, the stop plate 7 inserted into the slit 71, and the spring 6 subjected to force by the stop plate 7. The stop plate 7 is inserted into the slit 71 after the sliding shoe 5 and the spring 6 are housed in the housing portion 31.

[0057] like Figure 7 As shown, the spring applies force to the stop plate 7 inserted into the slit 71, causing the stop plate 7 to fit tightly against the load-bearing portion 75 (described later), forming a gap in the vertical direction of the slit 71. Here, the gap (H) at both ends of the slit 71 is wider than the gap (h) in the center. By narrowing the opening when the stop plate 7 is inserted, the drainage outlet is secured, and dust intrusion is suppressed, ensuring strength. Furthermore, by narrowing the opening in the center to suppress the outer periphery of the spring 6, the stop plate 7 can be stably forceped, ensuring stable operation over a long period. Moreover, due to the surface tension of water, water is drawn to the two ends with the larger gap, thus effectively draining water. Even if water remains inside the housing 3, it is only about the height of the end face of the spring 6. Even if the water remaining inside the housing 3 freezes, the spring 6 can still reliably apply force to the surface of the stop surface 24 of the arm 2, keeping the slide 5 in contact with the stop surface 24.

[0058] Figure 8 This refers to the load-bearing part 75 located on the upper part of the cylindrical part 70. Figure 9 express Figure 8 The internal structure of the cylindrical portion 70. A load-bearing portion 75 is provided in the cylindrical portion 70 of the housing 3 to bear the load of the spring 6. A stop plate 7, inserted into the slit 71 provided between the receiving portion 31 and the load-bearing portion 75, is pressed tightly against the load-bearing portion 75 around its circumference under the force of the spring 6. This prevents water from seeping into the housing through the upper opening 56, reducing the risk of freezing or rust hindering smooth operation, thus ensuring stable operation of the vehicle door opening limit device over a long period.

[0059] The opening 76 is used to house the sliding shoe 5 and the spring 6 in the housing part 31. After the sliding shoe 5 and the spring 6 are housed in the housing part 31, the stop plate 7 is inserted into the slit 71, thereby the stop plate 7 exerts force on the spring 6. Through this reaction, the stop plate 7 is also exerted force by the spring 6, and the stop plate 7 is in close contact with the load-bearing part 75 throughout its circumference.

[0060] exist Figure 8 In the cylindrical portion 70, a groove 77 is provided on the load-bearing portion 75. The cylindrical portion 70 has the groove 77 located on its outer side in the vertical direction, perpendicular to the forward and backward direction of the arm 2. This groove 77 connects to the opening 76. By draining water accumulated on the stop plate 7 at the upper opening 76, the risk of water entering the housing 3 can be reduced. Furthermore, by draining water in a direction perpendicular to the forward and backward direction of the arm 2, the risk of water flowing down the arm 2 and re-entering the housing 3 can be reduced. Therefore, the risk of freezing or rust hindering the smooth operation of the vehicle door opening limit device 1 can be reduced, thus ensuring long-term stable operation.

[0061] Figure 10 express Figures 1-9A modified example. A protrusion 78 is provided in the slit 71 of the housing 3, and a engaging portion 72 is provided in the stop plate 7 to engage with the protrusion 78. When the stop plate 7 is inserted through the slit 71, the protrusion 78 engages with the engaging portion 72. Additionally, as... Figure 11 As shown, a protrusion 79 and a locking part 73 are also provided on the opposite side of the protrusion 78 and the locking part 72. By engaging the protrusion with the locking part, the insertion position of the stop plate 7 can be prevented from shifting, thus enabling the force applied to the spring 6 to operate stably and reliably suppressing water from seeping in through the opening.

[0062] Figure 12 This indicates the interior of the spring storage section 55 located in the upper slide 5. Figure 13 Viewed from the outside Figure 12 The diagram shows the upper slide. The upper slide 5 has a space for at least a portion of the spring 6, namely a spring storage portion 55. A through hole 56 is provided at the bottom or side of this spring storage portion 55, connected to the outer peripheral surface of the upper slide 5, allowing water to drain from the upper slide 5. If the through hole 56 is provided in a direction orthogonal to the forward and backward direction of the arm 2, the upper slide 5 is adjacent to the housing 3, making it difficult to drain water from the side. On the other hand, by providing the through hole 56 in the same direction as the forward and backward direction of the arm 2, the front space for drainage without obstruction by the side wall 37 of the housing 3 can be expanded (see reference). Figure 5 , Figure 7 Therefore, water can be effectively drained from the upper sliding shoe 5 to prevent water from remaining in the housing 3. The through hole 56 reduces the risk of freezing or rust hindering smooth operation, thus enabling the vehicle door opening limit device to operate stably for a long time.

Claims

1. A vehicle door opening limit device, characterized in that, The vehicle's door opening limit device includes: A housing made of synthetic resin, which is fixed to either the door or the vehicle body; An arm, which passes through a first opening and a through space provided in the housing, is flexibly connected at one end to the door and the other in the vehicle body; A full-opening stop is provided at the other end of the arm and restricts the door to its full-open position by abutting against an abutting surface located on the opening face of the housing; The middle portion is disposed between one end and the other end of the arm and has a stop surface with concave and convex surfaces in the vertical direction; The sliding shoe is housed within the housing and slides on the upper and lower surfaces of the stop surface of the arm as the door opens and closes. A spring, housed within the housing, applies force to the upper and lower surfaces of the slide facing the stop surface; and A stop plate that keeps the spring in a compressed state within the housing. The housing includes: a cylindrical portion having receiving portions for receiving the sliding shoe and the spring respectively; And a slit that allows the stop plate to pass through the side of the cylindrical portion, the stop plate protruding toward the receiving portion by being inserted into the slit, the slit forming a gap in the vertical direction by the spring exerting force on the stop plate inserted into the slit.

2. The vehicle door opening limit device according to claim 1, characterized in that, When viewed from the front, the vehicle door opening limiting device is vertically symmetrical and / or horizontally symmetrical with respect to the center of the first opening of the housing.

3. The vehicle door opening limit device according to claim 1 or 2, characterized in that, The width of the gap in the slit is larger at both ends than at the center in the left-right direction.

4. The vehicle door opening limit device according to claim 1 or 2, characterized in that, The cylindrical portion of the housing is provided with a load-bearing portion that bears the load of the spring. The stop plate is inserted into the slit provided between the receiving portion and the load-bearing portion. When the stop plate is subjected to force by the spring, it is in close contact with the load-bearing portion around its entire circumference.

5. The vehicle door opening limit device according to claim 1 or 2, characterized in that, The cylindrical part has a groove on the outer side of the stop plate in the vertical direction, in a direction orthogonal to the forward and backward direction of the arm, and the groove is connected to the opening hole.

6. The door opening limiting device according to claim 1 or 2, characterized in that, The slit in the housing has a protrusion, and the stop plate has a locking part that engages with the protrusion. When the stop plate is inserted into the slit, the protrusion engages with the locking part.

7. The door opening limiting device according to claim 1 or 2, characterized in that, The slide is provided with a spring storage part that serves as a space for accommodating at least a portion of the spring, and a through hole is provided at the bottom or side of the spring storage part in a manner connected to the outer peripheral surface of the slide.

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