JPS6129787A - Regulator for angle of aperture of pivotal mounting member - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to, for example, a footrest on which the feet are placed when hanging on a chair and working at a desk, a top plate member supported by other pivot members, etc. The present invention relates to an opening angle adjustment device for a pivot member, which is applied to a device whose inclination and height are adjusted depending on the purpose of use.

For example, when working at a desk as mentioned above, in order for the user to take a comfortable and natural posture, the height of the chair and desk must correspond to the height of the user. Since the condition also has an important meaning, efforts are being made to make the height of existing chairs and desks adjustable.

[Conventional example]

Conventionally, in the above-mentioned desks, chairs, and others, the legs, etc. are formed by pivot members, and the tilting angle and height of the top plate member can be adjusted by adjusting the opening angle of the pivot members. However, this type of opening angle adjustment device for pivot members has problems in terms of its structure and operability, such as its complicated structure, which requires eight parts, and its operation, which is cumbersome and time-consuming. There is.

[Problem that the invention seeks to solve]

Therefore, the present invention was developed in view of the above-mentioned conventional problems.
Oni 1 Both second pivoted members are pivoted in a substantially X-shape on the side, one end of the one member is pivoted to one end of the top plate member, and both The operating shaft is connected between the members so as to be able to move laterally by rotation, and one end of the other member is connected to the other end of the top plate member and the third pivoted member via a screw-type feeding means. By adopting a structure in which the first and second pivoted members are connected by pivoting, the opening angles of both the first and second pivoted members and the opening angle of the third pivoted member can be quickly adjusted with easy operation, and each can be independently adjusted. This makes it possible to not only adjust the height of the top plate without changing it to a desired state, but also to easily and accurately adjust the angle of inclination. is its purpose.

[Means for solving problems]

That is, in the present invention, the first pivoted member and the second pivoted member are formed into a substantially X-shape on the side, and are pivotally connected to each other so as to be openable and closable.
One end of one of the two pivoted members is pivotally coupled to one side end of the top plate member, and one end of the other pivoted member is connected to a screw-type screw supported on the same member. The top plate member is pivotally connected to the other end of the top plate member via the height adjustment means and a third pivoted member, and is located on one end side from the pivot point of both the pivoted members; An operating shaft is installed on the member so as to be rotatable and horizontally movable in the length direction of the member, and the operating shaft is provided so as to be movable laterally when the operating shaft is rotated. The above-mentioned problems are solved by configuring the operating shaft to be laterally movably connected to the other pivoted member.

〔Example〕

1 and 2 show the simplest embodiment of the present invention, and FIGS. 3 to 8 show embodiments in which the present invention is applied to a footrest.

In FIGS. 1 and 2, a first pivoted member 1 and a second pivoted member 2 are crossed so as to form a substantially X-shaped side surface, and are pivoted at the intersection, and the pivoted member 2 is By making it rotatable around a as a fulcrum, the opening angle α can be changed.

One end of the second pivoted member 2 is pivoted to the back surface of one side end of the top plate member 3, and one end of the first pivoted member 1 is provided with a screw-type feeding means 4, By pivotally connecting the feeding means 4 and the other end of the top plate member 3 with a third pivoted member 5, one end of the pivoted member 1 is connected to the top plate member 3. Each pivot member 1.2.6 constitutes a leg of the top plate member 3, and both pivot members 1.2.6 constitute a leg of the top plate member 3.
The other end of the valley 2 can be held in an upright state by coming into contact with the stationary surface G.

Then, the pivot point a of the second pivoted member 1.2 of the above-mentioned man 1
An operating shaft 6 is rotatably supported on one end of the member 1 and movable in the longitudinal direction and laterally of the member 1. Pivot member 2
The operating shaft 6 is connected to the other pivoted member 2 through a feeding means (not shown) provided between the operating shaft 6 and the operating shaft 6 so that the operating shaft 6 can be rotated and moved laterally. As a result, by rotating the operating shaft 6 in the normal or reverse direction, the operating shaft 6 is laterally moved to the left or right in the figure, thereby moving both pivoted members 1. The opening angle α of .2 is configured to be adjusted.

Here, the screw type feeding means 4 is formed from a screw rod and an actuator (not shown).

Next, an embodiment of the footrest will be described in detail based on the drawings.

As shown in Figures 2 and 3 to 8, the top plate member 3, which has biaxial dimensions sufficient to place the feet, is slightly inclined downwardly to the rear. There are brackets 3a, 3a, 3 on both the left and right sides of the rear end.
b, 3b is provided.

Both the first and second pivotally attached members 1.2 constituting the footrest of the top plate member 3 have two left and right constituent members 1a, 1a, 2a, 2a made of band-shaped metal plates at the other ends, respectively. Connector 1b, 2b
Each frame is formed by constructing a
The two pivotally attached members 1.2 are arranged in a substantially X-shape on the side, and their father points are pivoted by a pivot 7, so that they can be opened and closed.

One end of the constituent members 2a, 2a of the second pivoted member 2 of the two pivoted members 1.2 is pivoted to the bracket 3a of the top plate member 3 by a pivot 8, respectively. A screw-type feeding means 4 is interposed between one end of the same structural member 1a, 1a of the pivoted member 1 of square size 1, and a third pivoted member 5.
5 is pivotally connected by a pivot 9.9, and the other end of the third pivoted member 6.5 is connected to the brackets 3b, 3b and the pivot 1.
One end of the first pivotally attached member 1 and the top plate member 3 are pivotally connected at an angle of 0.1o.

Here, as clearly shown in FIG.
, 1a, an operating screw rod 4a is rotatably installed, and its axial movement is prevented by a washer 4b, a pin 4c, etc., and one end thereof protrudes outward to fix a knob 4d. Reverse threaded portions 4e and 4f are carved on both left and right sides in the length direction of the operating screw rod 4a,
They are formed by screwing together actuators 4g and 4h, respectively.

Thus, the pivoted member 5 is attached to the six actuators 4g and 4h.
．． One end of 6 is pivotally connected by a pivot 9.9, and by applying a reaction force to this pivoted member 6.6, the knob 4d rotates the operating screw rod 4a in the normal or reverse direction. Both cases move 4g.

4h respectively spiral outward symmetrically or counter-screw internally, whereby the opening angle β of the third pivoted member 5.6 with respect to the operating screw rod 4a is adjusted to be large or small. .

Further, the two pivoted members 1.2 are the same constituent member 1a by changing their opening angles α.

Since the dimensions between the pivot point 510 between 1a, 2a, 2a and the top plate member 3 may change, the dimensions between the third pivoted member 6.5 and the top plate member 3 are adjusted so that the changes can be absorbed. The pivot point C of is formed as follows.

That is, the fourth temporary phase N member 1 is placed on the brackets) 3b and 3b.
1.11 in the front-rear direction with the pivot 9.9, that is, the fifth
In FIG. 6, the third pivoted member 6.
One end of the lever 6 is pivotally connected to a pivot 12.12 so as to be rotatable in the left-right direction, and in the longitudinal direction of the operating screw rod 4a in FIGS. 5 and 6.

That is, the hinged member 6.6 of the fang 3 is pivotally mounted so as to be rotatable in two axes.
This makes it possible to absorb dimensional changes between the positions c and to adjust the opening angle β of the third pivoted member 6.6.

The same constituent members ia and 1a of the first pivoted member 1 are located on one end side from the pivot point a of the second pivoted member 1.2, and have a longitudinal direction. long hole 13
．． 13 so that the operating shaft 6 can freely rotate and move laterally along the elongated hole 13.13, while preventing movement in the axial direction, and protrudes outward. A knob 6a is fixed to one end.

On the other hand, both components 2a, 2 in the second pivoted member 2
In a, an elongated hole 14.14 is provided at a position and length corresponding to the elongated hole 13.13, and extends long through the structural members 2a, 2a in the length direction. By inserting the shaft 6, it is connected to the pivoted member 2.

Further, the operating shaft 6 is a feeder formed so that it can be moved laterally in the length direction along the elongated hole 13, 13, 14, 14 when the same shaft 6 is rotated forward or reverse. Means 1
6, and is connected to the second pivoted member 2 as described above.

Here, the operating shaft 6 has two flanges 6b and esb fixed at an appropriate distance in the axial direction near both ends, and the first pivoted member is fixed between the two flanges 6b and 16b. Opening edges 13a, 13 of elongated hole 13.13 in member 1
As clearly shown in the off-line diagram, a is slidably engaged to prevent movement in the axial direction.

According to the illustrated example, the feeding means 16 is located at the lower edge of the elongated hole 14, 14, and has a rack 15a in its length direction, as clearly shown in the off view, while the operating shaft Binions 16b, 15b are provided near both ends of the rack 6, and the binions 15b, 15b and the rack 15 are connected to each other.
a, 15a are engaged with each other, so that the operating shaft 6 is rotated to roll and move laterally. Any other configuration may be used as long as it can be used.

In the above configuration, when the operating shaft 6 is located at the right end of both holes 13, 13, 14, and 14 as shown in FIG. The opening angle α of .2 is kept at a minimum υ, so that the height of the top plate member 3 is at its lowest position.

When the operating shaft 6 is rotated counterclockwise in the figure from the state shown in FIG. 5, the operating shaft 6 is moved laterally while being shifted to the left by the feeding means 16.

As a result, the second inner pivot member 1.2, which is related to the operation shaft 6 so as to be able to move laterally, rotates in a symmetrical direction about the pivot point a, and its opening angle α is growing.

In this way, at the end of the leftward lateral movement of the operating shaft 6, the opening angle α becomes maximum as shown in FIG.

Further, when the operating shaft 6 is rotated to the right in the figure from the state shown in FIG. becomes smaller.

On the other hand, when the operating screw rod 4a of the screw-type feeding means 4 is rotated in one direction, the interlocking actuators 4g14h, which are screwed into the reverse threaded portions 4es4f, respectively, as shown by solid lines in FIG. They are located close to each other, so that the opening angle β of the third pivoted member 5.6 is kept small, and the inclination angle γ of the top plate member 3 is kept the smallest, so that The top plate member 3 is kept in a substantially horizontal state.

When the operating screw rod 4a is rotated in the other direction in the state shown by the solid line in FIG.
4. It is screwed in a symmetrical direction on the rod by f, and at the end of the screw, it moves to the outermost position as shown by the two-dot broken line in Fig. 8, thereby changing the opening angle of the pivoted member 6.6. β becomes maximum, and the top plate member 3 becomes the second
The other end is pushed upward and rotated using the pivot point with the pivoted member 2 as a fulcrum.

Therefore, the inclination angle γ of the top plate member 3 becomes maximum.

〔Effect of the invention〕

Since the present invention is configured as described above, it is possible to rotate the inner member 1.2 by simply rotating the operating shaft 6 in the normal or reverse direction and moving it laterally in the length direction of the member 1.2. The opening angle α of the mounting member 1.2 can be adjusted to be larger or smaller at will, and the operating shaft 6 moves the feeding means 15 from the pivot point a of the inner mounting member 1.2 to one end side. Since the structure is constructed by linking the operating shaft 6 with the operating shaft 6, the rotation and lateral movement can be performed smoothly compared to a structure in which the operating shaft rotates at a fixed position.Moreover, the short lateral movement stroke of the operating shaft 6 The opening angle α of the inner pivoted member 1.2 can be widened and the opening angle β of the third pivoted member 6.6 can be easily increased by the threaded feeding means 4. Adjustments can be made independently using simple operations.
For example, when it is necessary to adjust the height of the top plate member 3 and the angle of inclination γ, such as a footrest, the height and angle of inclination γ of the top plate member 3 can be adjusted without changing each other. There are effects such as being able to make adjustments appropriately.

[Brief explanation of the drawing]

FIGS. 1 and 2 are schematic side views of an embodiment of the opening angle adjusting device for a pivot member according to the present invention in an operating state;
Figure 3 is a perspective view of an embodiment in which the same device is adopted as a footrest;
FIG. 4 is a plan view of the same embodiment, FIG. FIG. 8 is an enlarged perspective view showing one embodiment of the transportation means, and FIG. 8 is an enlarged vertical sectional front view showing one embodiment of the screw martial arts means in the same device. 1...First pivoted member 2...Second pivoted member 3...Top plate member 4...Screw martial arts 9 means 4a... Operating screw rods 4e, 4f... Reverse threaded portions 4g, 4h@... Actuator 6... Member to which fang 3 is pivoted 6... Operating shaft 16・・・・・・Feeding means

Claims (2)

[Claims] (1) The first pivoted member and the second pivoted member are formed into a substantially X-shaped side surface and are cross-pivoted so as to be freely openable and closable, and one of the two pivoted members is One end of the pivot member is pivotally connected to one side end of the top plate member, and one end of the other pivot member is
Pivotally connected to the other end of the top plate member via a screw-type feeding means supported by the same member and a third pivoted member, and located on one end side from the pivot point of both the pivoted members, One of the pivoted members is provided with an operating shaft that is rotatable and movable laterally in the length direction of the member, and is also provided so that it can be moved laterally when the operating shaft is rotated. 1. An opening angle adjusting device for a pivot member, characterized in that the operating shaft is linked to the other pivot member so as to be able to move laterally through a feeding means. (2) The screw-type feeding means pivots one end of the third pivoted member to each actuator screwed into the reverse threaded portion of the operating screw rod rotatably installed at the end of the third pivoted member. The opening angle adjustment device for a pivot member according to claim 1, wherein the device is connected by a joint.