JPH05131374A - Movement retention device - Google Patents

Abstract

PURPOSE:To provide a small, thin, and cheap object retention device which enables pole bodies to be moved and contracted and can be remotely controlled. CONSTITUTION:An opening and closing mechanism 4 is installed at the tip of pole bodies 1a, 1b, and 1c comprising a plurality of stages and a tie plate retention mechanism transfer device is installed at the grip part retaining the entire retaining device 11 so that the opening and closing mechanism is opened or closed via a tie plate in response to the movement of the tie plate retention mechanism 11. Therefore, a component which can be opened, closed, or retained as well as remotely controlled regardless of the increasing length of pole bodies can be provided.

Description

Detailed Description of the Invention

[0001]

[Industrial application] Multi-stage rods can be moved and expanded and contracted, and can be used in all industrial fields such as consumer equipment as a component required for remote control.

[0002]

2. Description of the Related Art Some electric rods, such as automobile antennas, which can be expanded and contracted in a plurality of stages are designed to move the rods by a pinion and a flexible rack. The method using a pinion and a flexible rack has been a constraint for weight reduction and miniaturization because the shape of the flexible rack made of resin after winding is large and the external dimensions of the product are large.

Further, as a manual type holding device, Japanese Patent Application Laid-Open No. 62-62
-296290 is available. No conventional one is small, thin, lightweight and inexpensive as intended by the present invention.

[0004]

SUMMARY OF THE INVENTION In the above-mentioned prior art, as a holding device having a movable and expandable / contractible rod body, an open / close holding mechanism at its tip, and a remotely operable component, the external dimensions are small. It is to obtain a thin, lightweight, and inexpensive structure.

[0005]

[Means for Solving the Problems] A plurality of rods that can be expanded and contracted in a plurality of stages, and one end of a strip plate having a convex cross section in the width direction is wound into a coil, and the other end is connected to the rod, A strip holding mechanism that moves the strip in a lengthwise direction by pressing the convex side of the strip that is convex in a part of the strip with a member having a large friction coefficient and supporting the back surface with a wear resistant material. It is possible to move the rod body by moving the band plate holding mechanism.

[0006] On the other hand, an opening / closing mechanism is provided on a rod at the tip of a plurality of stages, and a gripping plate holding mechanism moving device is mounted on a grip portion that holds the entire holding device at hand, and the gripping plate holding mechanism is provided with the banding plate interposed. Equipped with an opening and closing mechanism that opens and closes in response to the movement of the.

[0007]

[Function] When the strip plate holding mechanism of the grip portion is moved, a plurality of stages of rods move, and the opening / closing mechanism operates in cooperation with the movement of the rods. Thus, the opening / closing mechanism at the tip of the rod can be operated by operating the grip portion.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of an embodiment of the present invention will be described below with reference to FIGS.
As shown in FIG. 1, FIG. 2 and FIG. 3, the hollow rods 1a, 1b and 1c arranged coaxially are respectively the leaf springs 2.
It can extend and contract coaxially with a, 2b and 2c interposed. One end of the hollow rod 1a is fixed by an opening / closing mechanism 4 having an opening / closing movable part 4a and fixing parts 4b, 4c which are always closed by a spring 3, a support pin 5, and a screw 6, and the other end is a leaf spring 2
a is provided to provide a desired sliding resistance with the inner wall of the hollow rod 1b, and the hollow rod 1b is prevented from coming off. As shown in FIG. 3, an operating rod 1d is provided inside the hollow rod 1a, and the opening / closing movable portion 4a of the opening / closing mechanism portion 4 is provided at one end by movement of the shaft of the operating rod 1d. A reel 8 rotatably supported by the housings 7a and 7b at the other end is provided with a strip plate 9 wound in a coil shape and having a convex cross-section in the width direction, and a connecting member 10. They are connected with each other with screws 18 interposed.

The hollow rod 1b is provided with a required sliding resistance with the inner wall of the hollow rod 1c with the leaf spring 2b interposed therebetween and the hollow rod 1b.
It has a structure that is retained by c. Similarly, the hollow rod 1c
A desired sliding resistance is imparted by the leaf springs 2c arranged in the housings 7a and 7b, and the hollow rod 1c is prevented from coming off by the locking portion 7c.

In the housings 7a and 7b, the guide portion 12 of the hollow rod 1c, the guide portion 13 of the opening / closing mechanism portion 4, the strip plate holding mechanism 11 are provided.
The guide portions 14a, 14b, 15, 16, 17 of
It is fixedly held by the screw 22. The strip holding mechanism 11 is equipped so as to be movable in the length direction of the strip.

As shown in FIG. 4, the grip 25 includes a strip plate holding mechanism 11, a support portion 11a, a knob 11b, a convex portion 23a,
Shaft body 11 which is composed of 23b and is formed on the support portion 11a.
A support portion 11a that is rotatably supported around c and that presses the convex side of the convex strip with a pressing portion 11d that is formed of a member having a large friction coefficient (rubber or the like) and that has a back surface formed of an abrasion resistant material. To support. As a result, the strip plate 9 is reliably pressed by the pressing portion 11d formed of a member (rubber or the like) having a large friction coefficient on the convex surface side 9a, and securely held by the support portion 11a formed of a wear resistant material.

In FIGS. 5 (a) and 5 (b), the strip 9 having a convex cross section in the width direction when extended has a convex surface 9a and a rear surface 9b.
The band plate 9 has a holding force even if the band plate 9 is wound around the reel 8 in a coil shape in an unconstrained state based on an internal stress difference or the like generated at the time of molding.

In FIGS. 6 and 7, the opening / closing mechanism portion 4 is brought into contact with the opening portion 19, the guide portion 20 engaged with the guide portion 13 of the housings 7a and 7b, and the one end operation portion 1f of the operation rod body 1d so as to contact the shaft. To form the engaging portion 21 that opens and closes the opening / closing movable portion 4a.

When the opening / closing mechanism section 4 is pulled out from the housings 7a and 7b from the state shown in FIG. 1 based on the above-mentioned configuration, the strip 9 wound around the reel 8 in a coil shape under restraint is itself. The hollow rods 1a, 1b, 1c move coaxially while receiving sliding resistance via the leaf springs 2a, 2b, 2c, respectively, at the same time as the reel 8 rotates and extends against the holding force of the. It expands to the state shown in FIG.

Here, the hollow rods 1a, 1b,
Each of the coaxial sliding resistances 1c receives through the leaf springs 2a, 2b, 2c, respectively, and is configured to be larger than the holding force of the strip plate 9 wound in a coil shape. Therefore, when the hollow rods 1a, 1b, 1c are extended, the required length is held against the holding force of the strip 9.

When the opening / closing mechanism portion 4 is pulled back from the state shown in FIG. 3, the hollow rods 1a, 1b, 1c contract on the same axis, and the guide portion 20 of the opening / closing mechanism portion 4 moves to the casing as shown in FIG. 7
The guide parts 13 of a and 7b are engaged and stored. In this process, the unrestrained strip 9 is wound around the reel 8 in a coil shape by the holding force of the strip 9.

In order to operate the opening / closing mechanism section 4, the opening / closing mechanism section 4 is changed from "closed" (state A of the knob 11b in FIG. 4) to the strip holding mechanism as shown in FIGS. When 11 is moved to “open” (state B of knob 11b in FIG. 4),
The convex portions 23a and 23b of the strip plate holding mechanism 11 engaging with the guide portions 14a and 14b of the housings 7a and 7b are displaced by δ1.

Correspondingly, the pressing portion 11d of the strip holding mechanism 11 rotates around the shaft 11c and is displaced by δ2. The displacement amount δ2 of the pressing portion 11d made of an elastic member (rubber or the like) having a large friction coefficient presses the convex surface side of the strip plate 9 having a convex shape, and the support portion 11a supports the strip plate 9 to ensure the strip plate 9. At the same time as the holding, as the entire strip holding mechanism 11 moves, the strip 9 also has a frictional force (pressing load P
X friction coefficient μ), and moves by L together with the pressing portion 11d.

Further, the convex portions 23a, 2 of the strip holding mechanism 11
3b is a guide recess 24 formed in the guide portions 14a and 14b.
The movement amount L of the strip holding mechanism 11 is held by engaging with a and 24b. Therefore, the opening / closing operation of the opening / closing mechanism unit 4 can be performed regardless of the length of the opening / closing mechanism unit 4 pulled out from the housings 7a and 7b.

The strip 9 has a difference in internal stress between the front and back surfaces,
Since the cross-section in the width direction when extended has a convex shape, rigidity is generated in the longitudinal direction, and the operating rod 1d is moved in the axial direction through the connecting member 10 to move the operating portion 1f. As a result, the engaging portion 21 is pushed up along the inclined surface 1g formed on the operation portion 1f,
As shown in FIG. 7, the opening / closing movable part 4a is opened.

On the other hand, when the knob 11b of the strip holding mechanism 11 is moved to "closed" (state A in FIG. 4), contrary to the operation of opening the opening / closing movable portion 4a, the normally closed spring 3 is closed. As shown in FIG. 6, the opening / closing mechanism section 4 is closed by the force and the action of the holding force of the reel 8 of the strip 9 that is unconstrained to be wound into a coil, and the knob 11b is easily "closed" ( (State A in FIG. 4). FIG. 8 shows a state where a card or the like is grasped.

The opening / closing operation of the opening / closing mechanism portion 4 can be easily performed by one operation in one direction of one knob 11b of the strip holding mechanism 11.

[0023]

First, it is possible to provide an opening / closing mechanism having a small outer shape, a thin shape, and a light weight, which allows the rod body to be moved and expanded and contracted.

Secondly, it is possible to provide a component which can be securely opened and closed regardless of the length of extension of the rod and which can be operated remotely.

Thirdly, it is possible to provide a component which can be opened and closed by a single operation in one direction.

[Brief description of drawings]

FIG. 1 shows a cross-sectional view of the overall configuration of an embodiment of the present invention.

FIG. 2 shows a side view of the overall configuration as seen from the Q direction in FIG.

FIG. 3 shows a cross-sectional view of the configuration of the embodiment of the present invention in an expanded state.

FIG. 4 shows a cross section of a grip portion according to an embodiment of the present invention.

5 (a) and 5 (b) show configurations of a reel and a strip plate of an embodiment.

FIG. 6 shows a cross section of the open / close holding mechanism of the embodiment.

FIG. 7 shows a cross section of an opening / closing mechanism according to an embodiment.

FIG. 8 is a sectional view showing a state in which the open / close holding mechanism of the embodiment holds a card or the like.

[Explanation of symbols]

1a, 1b, 1c ... Rod, 4 ... Opening / closing mechanism section, 9 ... Strip plate,
11 ... Strip plate holding mechanism, 25 ... Grip part.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Seki Gen, Ibaraki Prefecture Katsuta City, Oita, Takaba 2477 Kashima Yatsu 3 Hitachi Automotive Engineering Co., Ltd. (72) Inventor Shigeaki Chiga Katsuta, Ibaraki, Ibaraki Kashima Yatsu 2477 3 Hitachi Automotive Engineering Co., Ltd. (72) Inventor Atsushi Suginuma 5 3085 Higashiishikawa Nishikonai, Katsuta City, Ibaraki Prefecture Hitachi Car Electronics Co., Ltd. (72) Seiji Yamashita Katsuta City, Ibaraki Prefecture Field 2520, Hitachi, Ltd. Automotive Equipment Division

Claims (4)

[Claims] 1. A strip plate having a holding force to be wound in a coil shape, and one end of the strip plate connected to a moving object, and the strip plate is pressed and held by a part of the strip plate in the length direction of the strip plate. What is claimed is: 1. A movable holding device having a movable holding mechanism, wherein the holding mechanism moves a strip plate in a longitudinal direction to move a moving object. 2. The moving holding device according to claim 1, further comprising a band plate holding mechanism in which at least a convex side of the convex band plate is pressed by a member having a large friction coefficient and a back surface is supported. 3. The movable body according to claim 2, wherein the object to be moved is a rod, and the rod is composed of a plurality of expandable / contractible rods that can be expanded / contracted in a plurality of stages. A moving holding device, which is configured to have a holding force larger than a holding force for winding the strip plate in a coil shape. 4. A belt plate holding mechanism moving device according to claim 3, wherein an opening / closing mechanism is formed at one end of a rod body of a plurality of stages, and a grip portion for holding the entire holding device is formed on the other rod body. A moving holding device having an opening / closing mechanism that opens and closes in response to the movement of the belt holding mechanism via the belt.