JP4283465B2 - Retractable hook device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a retractable hook device that is attached to a room of an automobile and suspends a shopping bag or the like.
[0002]
[Prior art]
An example of such a conventional retractable hook device is shown in FIG. 12 of Japanese Patent Laid-Open No. 8-282385.
Although not specifically shown, the conventional hook device includes a hook case having a storage chamber therein, a storage position that is pivotally supported by the hook case and stored in the storage chamber, and a storage position outside the storage chamber. A hook member that moves to a use position protruding in the direction, a torsion spring that urges the hook member to rotate in the use position direction, a lock means that locks the hook member to a storage position of the hook case, and storage of the hook member And a bush made of an elastomer that controls the opening speed from the position to the use position.
[0003]
When the hook device is not used, when the hook member is stored in the storage chamber of the hook case against the spring pressure of the torsion spring, the hook member is locked in its storage position by the action of the locking means, and the hook device is used. When the hook member in the locked state is slightly pressed toward the storage chamber side, the locked state by the locking means is released and the hook member is rotated in the direction of the use position by the spring pressure of the torsion spring. It is only necessary to hang a shopping bag or the like on this outwardly protruding hook member. However, when the hook member rotates in the direction of the use position, the opening speed continues due to the frictional resistance of the bush described above. Since it is controlled, the hook member protrudes outward relatively slowly.
[0004]
[Problems to be solved by the invention]
Therefore, in the conventional retractable hook device, it is possible to control the opening speed of the hook member by the frictional resistance of the bush. However, since this bush is formed of an elastomer, it can be used for a long time. Since the bush is distorted and a predetermined frictional force cannot be obtained due to a deterioration in temperature or a change in temperature due to a change in temperature, there is a possibility that the hook member suddenly protrudes and a hitting sound is generated.
[0005]
[Means for Solving the Problems]
The present invention was developed in order to effectively solve the problems of such a conventional hook device. The invention according to claim 1 is a hook case having a storage chamber inside, and the hook case is rotated. A hook member that is pivotally supported and stored in the storage chamber and a use position that protrudes outward from the storage chamber and a spring that urges the hook member to rotate in the use position direction are provided. In the retractable hook device, one of the hook case or the hook member is provided with a position restricting portion for restricting the movement of the hook member in the lateral direction, and the first convex portion is integrally provided on one of the hook case or the hook member. A second convex portion that is press-engaged with the first convex portion is integrally provided on the other, and the first convex portion and the second convex portion are press-engaged and engaged at the use position of the hook member, and the first A plate piece that can bend one of the convex portion or the second convex portion With eggplant, it was adopted a structure that forms a tapered guide surface for guiding the pressure engagement of both in the position of use immediately before one of the first protrusion or the second protrusion.
[0007]
Therefore, in the first aspect of the invention, the first convex portion and the second convex portion that are press-engaged and engaged at the use position of the hook member are integrally provided on the hook case or the hook member. As a result of no deterioration due to use over a period or state change caused by temperature change, the opening speed of the hook member can be reliably controlled at the time of use, and the occurrence of hitting sound can be effectively prevented. Due to the press-fit engagement of the one convex portion and the second convex portion, the hook member is not likely to rattle in the vertical direction, and the presence of the position restricting portion eliminates the possibility of the hook member being laterally rattled. Moreover, providing each convex part integrally with a hook case or a hook member can also contribute to the reduction of a number of parts compared with the conventional one. Further, in addition to this, since one of the first convex portion and the second convex portion is a deflectable plate piece, the opening speed of the hook member is more reliably controlled at the time of press-fitting engagement of both convex portions. It becomes possible.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail based on a preferred embodiment shown in the drawings. The retractable hook device according to the embodiment basically includes a storage chamber 2 as shown in FIG. A hook case 1 and a hook that is pivotally supported by the hook case 1 via a shaft 4 and is stored in the storage chamber 2 and a use position that protrudes outward from the storage chamber 2 A member 3; a torsion spring 5 which is mounted on the shaft 4 and urges the hook member 3 to rotate in the use position direction; and a push-open type locking means for locking the hook member 3 to the storage position of the hook case 1 ( (Not shown).
[0010]
As for the hook case 1, a pair of flanges 6 that are screwed to the interior wall of the automobile are provided on both sides of the hook case 1, and a pair of bearing holes 7 are formed, while a bottom portion that defines the storage chamber 2 is formed. A pair of stopper ribs 8a and 8b projecting toward the storage chamber 2 side is integrally projected, and the plate-like stopper ribs 8a and 8b are provided on the stopper surface 14 of the hook member 3 to be described later. The use position of the hook member 13 is regulated by bringing the stopper portion 15 into contact therewith. Further, one of them 8a acts as a first convex portion that is press-engaged with a second convex portion 13 on the hook member 3 side described later. Further, a concave guide groove 9 is formed inside the hook case 1 corresponding to the pair of bearing portions 7.
[0011]
Further, with respect to the hook member 3, plate-like bearing pieces 10 are provided on both side edges of the base end portion, and a pair of bearing holes 11 projecting outward are formed in the respective bearing pieces 10. 11 and the shaft 4 inserted through the bearing holes 7 so as to be pivotally supported with respect to the hook case 1, so that the hook member 3 is always held by the spring pressure of the torsion spring 5 attached to the shaft 4. While being urged to rotate in the direction of the use position, a concave hooking portion 12 for hanging a shopping bag or the like is formed on both side edges of the tip portion. In addition, the stopper part 15 contact | abutted to the stopper surface 14 of each said stopper rib 8a * 8b shall be formed in a series in the site | part which connects each said bearing piece 10 by the base end part side.
[0012]
Further, with respect to the hook member 3, in addition to this, as shown in FIG. 2, a second convex portion 13 having a tapered guide surface 13 a formed at the one inner tip of the bearing piece 10 is integrally projected. Immediately before the hook member 3 is rotated to the use position, the action of the taper guide surface 13a guides the press contact engagement between the first convex portion 8a and the second convex portion 13, and the hook member 3 is brought to the use position. When it reaches, the structure which press-fits the 1st convex part 8a and the 2nd convex part 13 completely is employ | adopted together.
[0013]
Therefore, when the hook member 3 is pivotally supported on the hook case 1, the guide groove 9 is used to obtain a state in which the bearing holes 7 and 11 are aligned with each other. If the shaft 4 fitted with the torsion spring 5 is inserted into the bearing holes 7 and 11 while the hook member 3 is housed in the hook 2, the hook member 3 can be easily pivotally supported on the hook case 1. However, in such a state, as shown in FIG. 3, the pair of bearing holes 11 projecting outward on the hook member 3 side come into contact with the guide groove 9 surface of the hook case 1 from the inside, and the hook member Since the movement of 3 in the lateral direction is restricted, the hook member 3 is not worried about rattling in the lateral direction. Therefore, the pair of bearing holes 11 serve as a position restricting portion for the hook member 3 in cooperation with the surface of the guide groove 9.
[0014]
When the hook device is not used in actual use, as shown in FIG. 4, when the hook member 3 is stored in the storage chamber 2 of the hook case 1 against the spring pressure of the torsion spring 5, the locking means As a result, the hook member 3 is locked in the retracted position, so that its presence does not get in the way, but in this unused state, as shown in the figure, the first convex portion 8a and the second convex portion 13 and no interference.
[0015]
When the hook device is used, if the hook member 3 in the locked state is slightly pressed toward the storage chamber 2 side, the locked state by the locking means is released, and the hook member 3 is moved to the use position by the spring pressure of the torsion spring 5. After that, the shopping bag or the like may be hung on the hook 12 of the hook member 3 that protrudes outward.
[0016]
When the hook member 3 rotates in the use position direction, the taper guide surface 13a formed at the tip of the second convex portion 13 is gradually moved to the side surface of the first convex portion 8a immediately before the use position. The hook member 3 is moved to the use position while receiving a slight control of the opening speed, and when the hook member 3 reaches the use position, this time, FIG. 5 and FIG. As shown in FIG. 4, the second convex portion 13 is replaced with the first convex portion while one or both of the plate-like bearing piece 10 on the side where the second convex portion 13 is provided and the plate-like first convex portion 8a are bent. Since the press contact engagement is performed on the side surface of 8a, when the stopper portion 15 on the side of the hook member 13 comes into contact with the stopper surface 14 of each of the stopper ribs 8a and 8b, the hitting sound is not generated and the hook Member 3 can also eliminate worries about vertical movement That.
[0017]
Moreover, the first convex portion 8a is integrally provided on the hook case 1 side as a stopper rib, and the second convex portion 13 is integrally provided on the hook member 3 side. In addition, since it does not deteriorate due to long-term use or change in state due to temperature change, the opening speed of the hook member 3 is reliably controlled at the time of use, and the stopper for the stopper surface 14 is prevented. This is because it is possible to effectively prevent the occurrence of a hitting sound when the portion 15 abuts.
[0018]
In the embodiment described above, the pair of bearing holes 11 serving as the position restricting portions are formed on the hook member 3 side, but a position restricting portion having the same effect can be formed on the hook case 1 side. Also, the first convex portion 8a is provided on the hook case 1 side and the second convex portion 13 is provided on the hook member 3 side, but the second convex portion 13 is provided on the hook case 1 side, It is optional depending on the implementation to provide the first convex portion 8a on the hook member 3 side. Furthermore, in the embodiment, the tapered guide surface 13a is formed on the second convex portion 13 side, but conversely, the tapered guide surface can be formed on the first convex portion 8a side. .
[0019]
As described above, according to the present invention, since the first convex portion and the second convex portion that are press-engaged and engaged at the use position of the hook member are integrally provided on the hook case or the hook member by adopting the above configuration, As a result of no deterioration due to use over a period or state change caused by temperature change, the opening speed of the hook member can be reliably controlled at the time of use, and the occurrence of hitting sound can be effectively prevented. Due to the press-fit engagement of the one convex portion and the second convex portion, the hook member is not likely to rattle in the vertical direction, and the presence of the position restricting portion eliminates the possibility of the hook member being laterally rattled. Moreover, providing each convex part integrally with a hook case or a hook member can also contribute to the reduction of a number of parts compared with the conventional one. Further, in addition to this, since one of the first convex portion and the second convex portion is a deflectable plate piece, the opening speed of the hook member is more reliably controlled at the time of press-fitting engagement of both convex portions. It becomes possible.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a retractable hook device according to an embodiment of the present invention.
FIG. 2 is a front view of a hook member.
FIG. 3 is an explanatory view showing a state in which a hook member is assembled to a hook case with a part cut away.
FIG. 4 is a cross-sectional view showing a non-use state of a hook member.
FIG. 5 is a cross-sectional view showing a usage state of the hook member.
FIG. 6 is an explanatory view showing a state in which the second convex portion is press-engaged with the first convex portion.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hook case 2 Storage chamber 3 Hook member 4 Shaft 5 Torsion spring 6 Flange 7 Bearing hole 8a Stopper rib (1st convex part)
8b Stopper rib 9 Guide groove 10 Bearing piece 11 Bearing hole (position restricting portion)
12 Hooking part 13 Second convex part 13a Taper guide surface 14 Stopper surface 15 Stopper part

Claims (1)

A hook case having a storage chamber therein, a hook member pivotally supported by the hook case and stored in the storage chamber, and a hook member that moves between a storage position and a use position protruding outward from the storage chamber; A retractable hook device comprising a spring for rotating and biasing the hook member in the use position direction, wherein the hook case or one of the hook members is provided with a position restricting portion for restricting the movement of the hook member in the lateral direction. A first convex portion is integrally provided on one of the case or the hook member, and a second convex portion that is press-engaged with the first convex portion is integrally provided on the other, and the first convex portion and the second convex portion are provided. Is pressed and engaged at the use position of the hook member, and one of the first convex part or the second convex part is made a deflectable plate piece, and immediately before the use position on one of the first convex part or the second convex part. A tapered guide surface was formed to guide the pressure contact between the two. Retractable hook and wherein the door.

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