JPH1186384A - Brake device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brake device capable of fixing a brake shoe to a brake lever by the very simple work of deforming an elastic part by a fastening member. SOLUTION: Relating to a brake device for putting a brake on a rotary body such as a VTR reel base or the like by press-contacting a brake shoe with the rotary body, a brake lever 11 is provided with elastic parts 12 and 13 to be elastically deformed and holding parts 14 and 15 for holding the brake shoe by the elastic parts 12 and 13, and by deforming the elastic parts 12 and 13 by a fastening member, the brake shoe is held between the elastic parts 12 and 13 and the holding parts 14 and 15 and the brake shoe is fixed to the brake lever 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake device for braking a rotating body such as a reel unit of a VTR (video tape recorder) by pressing a brake shoe against the rotating body.

[0002]

2. Description of the Related Art As shown in FIG. 4, a conventional brake device is provided with a winding portion 3 for winding a brake shoe 2 formed of a material having resilient pressure such as felt on a brake lever 1, and the brake shoe 2 is provided. Are provided with holding portions 4 and 5 for holding the double-folded portions at both ends with the above-mentioned winding portion 3.

[0003] In the brake device constructed as described above, the brake shoe 2 is attached to the winding portion 3 of the brake lever 1 with a double-sided tape (not shown) and wound therearound. After being folded and folded and held between the winding portion 3 and the holding portions 4 and 5 of the brake lever 1 and formed and held, an adhesive is further applied to the gap portions 6 and 7 formed when the brake shoe 2 is double-folded. (Not shown), and the solidification of the brake shoe 2 is strengthened by inflow and solidification, and the brake shoe 2 is attached to the brake lever 1.

[0004] The brake device having the above-described structure is provided with a winding portion 3 on an outer peripheral surface of a rotating body (not shown) such as a reel stand of a VTR.
By pressing the press contact portion 2a of the brake shoe 2 wound around the surface opposite to the holding portions 4 and 5, the braking of the rotating body is performed.

However, in the above-described brake device, the amount of the adhesive flowing into the gaps 6 and 7 of the brake shoe 2 varies depending on the operation, and when the amount of the adhesive is small, the molding holding force of the brake shoe 2 is reduced. And the frictional force between the brake shoe 2 and the rotating body during the braking operation causes the brake shoe 2 to be pulled out of the brake lever 1, and when the amount of the adhesive is large, the time until the adhesive solidifies becomes longer.
There is a problem that the reliability and workability of the brake device are reduced.

Therefore, there is no need for the work of injecting the adhesive into the brake shoe and solidifying it.
No. H.243. This is accomplished by inserting the insertion portions 8a and 8b of the attachment body 8 into the gaps 6 and 7 formed when the brake shoe 2 is double-folded, as shown in FIG. The brake shoe 2 is attached to the brake lever 1 by strengthening the holding.

[0007]

However, in the device described in Japanese Patent Application Laid-Open No. 5-217243,
In a state where the gaps 6 and 7 are formed by double-folding the brake shoe 2, the winding portion 3 of the brake lever 1 and the holding portions 4 and 5 are formed.
When the gaps 6 and 7 cannot be formed, it is difficult to attach and hold the mounting body 8, and there is a problem in workability and reliability. Was.

[0008] The present invention has been made in view of the above points, and the brake shoe can be attached to the brake lever by a very simple operation of simply deforming the elastic portion by the fastening member. It is intended to provide a braking device.

[0009]

A brake device according to the present invention includes a brake lever provided with an elastic portion capable of being elastically deformed, and a holding portion for holding a brake shoe with the elastic portion.
By deforming the elastic part by a fastening member,
The brake shoe is sandwiched between the elastic portion and the holding portion, and the brake shoe is attached to the brake lever.

[0010] This makes it possible to clamp the brake shoe between the elastic portion and the holding portion and to securely attach the brake shoe to the brake lever by a very simple operation of simply deforming the elastic portion by the fastening member.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the brake device according to the present invention will be described below with reference to FIGS. 1 to 3. The same reference numerals are given to the same parts as those in the above-mentioned conventional example, and the description is omitted. Here, FIG. 1 is an explanatory plan view showing the brake device of the present embodiment before the brake shoes are attached, FIG. 2 is an explanatory side sectional view showing the brake device of the present embodiment, and FIG. 3 is a brake device of the present embodiment. FIG. 4 is an explanatory plan view showing a state after mounting the brake shoes in FIG.

As shown in FIGS. 1 to 3, the brake device of this embodiment includes a brake lever 11 having elastic parts 12, 13 which can be elastically deformed, and a brake shoe 2 comprising the elastic parts 12, 13. The holding portions 14 and 15 to be sandwiched are provided by integral molding. Further, screwing grooves 12a and 12b into which screws 16 serving as fastening members can be screwed are provided on surfaces of the elastic portions 12 and 13 facing each other.

In the brake device configured as described above, the brake shoe 2 is connected to the winding portion 1 of the brake lever 11.
6 with a double-sided tape (not shown) and wound around the brake shoe 2.
In a state sandwiched between the elastic portions 12 and 13 and the holding portions 14 and 15, the screw 17 is screwed into the threaded grooves 12 a and 1 of the elastic portions 12 and 13.
Screw into 2b and tighten.

As a result, the elastic portions 12, 13 are deformed in the direction of arrow A, and both ends of the brake shoe 2 are held between the elastic portions 12, 13 and the holding portions 14, 15, so that the brake shoes 2 To the brake lever 11.

As described above, in the brake device of this embodiment, the elastic portions 12 and 13 are formed by using one screw 17.
The brake shoe 2 can be attached to the brake lever 11 by a very simple operation of deforming the brake shoe, so that the brake shoe is double-folded to form a gap as in the above-described conventional example. Thus, the work of forming and holding by sandwiching between the winding portion and the holding portion of the brake lever can be eliminated, and workability and reliability can be improved.

[0016]

Since the brake device according to the present invention is constructed as described above, the brake shoe is held between the elastic portion and the holding portion by a very simple operation of deforming the elastic portion by the fastening member. However, since it can be securely attached to the brake lever, workability and reliability can be improved.

[Brief description of the drawings]

FIG. 1 is an explanatory plan view showing a brake device according to an embodiment of the present invention before a brake shoe is attached.

FIG. 2 is an explanatory cross-sectional view taken along the line B-B 'in FIG.

FIG. 3 is an explanatory plan view showing a brake device according to an embodiment of the present invention after a brake shoe is attached.

FIG. 4 is an explanatory plan view showing a conventional brake device.

FIG. 5 is an explanatory plan view showing another conventional brake device.

[Explanation of symbols]

 2 Brake shoe 11 Brake lever 12 Elastic part 13 Elastic part 14 Holding part 15 Holding part 16 Winding part 17 Screw

Claims (1)

[Claims] 1. A brake device for braking a rotating body by pressing a brake shoe against a rotating body such as a reel base of a VTR, wherein the brake lever comprises an elastically deformable elastic portion; By providing a holding portion for holding the brake shoe, and by deforming the elastic portion with a fastening member,
A brake device wherein the brake shoe is sandwiched between the elastic portion and the holding portion, and the brake shoe is attached to the brake lever.