KR980009760A - Telephone exchange Large Diff (MDF) rechargeable mobile ladder structure for charging - Google Patents

Abstract

The present invention relates to a chargeable movable work ladder structure for a telephone exchange to an MDF (Main Distributing Frame), and as an improved invention of a prior application (1995 patent application No. 523) of the present invention, Despite the safety ladder on the baffle structure of the telephone ladder work ladder that the baffle-free pedestal is stepped on and the ladder for the MDF work is not released, the braking device operation base is installed at one place with the straight iron bar, The dash geared motor 20 is operated forward and backward only by the switch button installed on the upper part of the ladder and when the hand is released from the switch, The effect of auto-brake is obtained due to the locking function of the motor itself. (MDF) ladder is prevented from moving due to malfunction of the auxiliary switch (8; 8 ') by additionally attaching a power switch to the switch box (14) at the upper end so that the motor does not operate even when the switch button is operated. A fluid clutch 21 is provided on the wheel shaft 16 so as to be manually operated in preparation for the failure of the geared motor 20 and the like so that the clutch lever 7 is operated and manually operated. 2 ') to reduce an accident that the operator's foot is caught on the moving rail, and the operation of the brake is simplified by the one-touch switch system so as to facilitate the operation of the female worker. It is an inventor of a chargeable movable work ladder structure for MDF.

Description

Telephone exchange Large Diff (MDF) rechargeable mobile ladder structure for charging

FIG. 1 is an entire assembled perspective view of the present invention; FIG.

FIG. 2 is a perspective view for explaining the use state of the present invention. FIG.

FIG. 3 is an exploded perspective view of the main portion of the driving portion clutch portion of the present invention. FIG.

FIG. 4 is a reference perspective view of the ladder footrest used in the present invention; FIG.

FIG. 5 is a perspective view of the storage battery and relay storage box used in the present invention. FIG.

FIG. 6 is a reference view of the telephone pre-touching opening used in the present invention, wherein (A) is a reference assembly perspective view (B) is a reference exploded perspective view.

DESCRIPTION OF THE REFERENCE NUMERALS

1: Lower main frame 2, 2 ': Foot protection cover

3: Charging battery and relay part box 4: Tool box

5, 5`: Roller support pieces 6, 6`: Guide rollers

7: clutch lever 8, 8`: auxiliary switch

9, 9`: Wheel 10: Front rail

10`: Rear railing 11: Ladder scaffold

12: Telephone line opening 12A: Telephone line opening cover

13: upper work footrest 13A: foot frame

14: Switch box 15: Lightning short-term storage box

16: Wheel shaft 17: Bearing

18: Clutch driven gear 19:

20: DC (DC) geared motor 21: Flow clutch

22: spring 23: lever lever

24: Clutch lever retraction screw 25:

26: clutch fixing screw 27: insulating plate

28: Battery 29: Charger

30: Relay control box 31: Telephone line reconfiguration

32: elastic plate 33: elastic plate spring

34: Telephone wire reel Roller 34A: Telephone wire reel

34B: Telephone spiral spring 35: Telephone line

36: Notification of telephone line extension Government 37: Chain

The present invention relates to a chargeable movable work ladder structure for telephone exchange MDF (Main Distributing Frame), which is an improved invention of the applicant's own prior application (Patent Application No. 523 of 1995) The improvement contents of the invention are as follows.

First, the MDF manual ladder used in the telephone office of the telephone company "Amanda F." called "telephone exchange station" has been inadequately equipped with danger prevention facilities, and Amdifev facilities in the 90s are gradually increasing in height Type work ladder that pushes with a heavy ladder in proportion to this, the work and the safety accident are caused because the work ladder is strong and the height and width are smaller than the inclination angle and shaking, In view of the above, the stopper is protruded from the braking gear formed at the center of the moving wheel of the lower part of the first foot so that the braking gear is released from the upper workbench by the operation handle. , Or the stopper can be pressed in a locked state and the operation handle is set to the neutral state, That it had been to embed the top is on the brake system structure of a telephone T entertainment works ladder so that the braking terminate scaffold with unconscious behavior of other IMD stepped profile (M.D.F) is not released ladder works off.

However, despite the above safety ladder, the problems of the current work ladder are as follows.

① MDF work is done by female workers. It is too heavy and the height and width are narrower than the inclination angle.

② Brake braking device The automatic braking phenomenon occurred frequently at a single place with a straight bar, and there were a lot of factors of the braking accident.

③ There is a lot of troubles to climb up and down the ladder.

④ It is very common for the ladder to move suddenly because the operator is not conscious of the worker at eye level.

⑤ The new MDF is high but it is shaky and uneasy due to the top work with the low height of the spherical ladder.

⑥ Heavy-duty MDF work When the ladder moved, the toe was frequently hit on the rail.

⑦ As the middle footboard is rubber and iron plate, it is not insulated from the ladder body, so static electricity is induced and the worker is surprised.

(MDF) ladder of the present invention is manufactured and improved to provide a comfortable working atmosphere and to establish a fundamental safety measure. Hereinafter, the structure and operation effects of the present invention will be described with reference to the accompanying drawings .

As shown in Figs. 1 to 6 of the present invention, seven ladder scaffolds 11 are formed on the scaffold frame 13A of the upper operation scaffold 13, and the front and rear railing 10 and 10 9 ') and rollers (5; 5') welded to both sides of the lower main frame (1) where the lower main frame (1) is formed are installed below the ladder equipped with the guide rollers (MDF) work ladder and its type are comparatively small.

The improved structure of each part in the present invention is as follows.

(1) A switch box 14 and a lightning arrestor housing box 15 are installed on a front rail 10 provided on an upper work footboard 13 and a telephone pre-sight opening 12 welded to the lower part of the upper work footboard 13 is divided into two disk- A telephone line retractor roller 34 having a resilient feeling plate 34A provided with resiliently affixing a telephone touch releasing spring 34B is interposed between the outer sides of the telephone line retractor cover 12A and the elastic plate 32 is connected to the elastic plate spring 33 And is fitted to the telephone line pulling-and-pulling notch part (36) with the telephone line turn-around extension (31)

(2) A point where an insulating plate 27 is adhered to each ladder foot 11.

(3) A foot protection cover 2 (2 ') is provided on the front and rear bumper portions of the lower main frame 1, and the rechargeable battery and the relay storage box 3 on one side of the lower main frame 1 are connected to the storage battery 28 , A charger (29), and a relay control box (30).

④ An auxiliary switch (8; 8`) is installed in the middle of both sides of the rear rail (10 ').

(5) A driven gear 18 having a clutch is fixed in the middle of a wheel shaft 16 of a wheel 9 'formed on one side of the lower main frame 1, and the fluid clutch 21 is elastically urged And the clutch lever fixing screw 24 is screwed to the body of the fluid clutch 21 so that the clutch lever 7 with the leaning rim 23 is fitted to the clutch retention base 25 and rotated by the clutch fixing screw 26 And the driven gear 18 connected to the clutch is connected to the mutual chain 37 from the diesh motor 20 equipped with the fixed seesaw driven gear 19.

As described above, each of the improved effects of the present invention is as follows.

(1) When the ladder moving method is operated by the switch button installed on the upper and lower sides of the ladder, the DG geared motor 20 moves back and forth. When the hand is released from the switch, the geared motor locks itself.

② Install the switch in the middle of the ladder (left 1, right 1) and at the top 1 so that the power switch can be turned on Thereby preventing the MDF ladder from being moved due to malfunction of the auxiliary switch 8 (8 ').

(3) A fluid clutch 21 is provided on the wheel shaft 16 so as to be manually used in case of failure of the diecast geared motor 20 and the like so that the clutch lever 7 can be operated to manually move the MDF ladder .

(4) A foot protection cover (2; 2`) was provided at the front and rear bumper portions of the lower main frame 1 to reduce an accident that the operator's foot on the lower part of the MDF ladder was stuck on the moving rail.

(5) Other than that, the former manual brake is solved to facilitate the work of the female member, the brake operation is simplified by the one-touch switch method, and the telephone line (35) is smoothly released compared to the conventional telephone pre- Lt; RTI ID = 0.0 > (MDF) < / RTI >

Claims (1)

A telephone box 14 and a lightning arrester storage box 15 are provided on the front rail 10 and a telephone pre-opening opening 12 welded to the lower portion of the upper operation footboard 13 is provided between the two disk- The telephone line retractor 34 having the elasticity detecting plate 34A formed with elasticity of the telephone line detecting spring 34B is inserted in three places and the elastic plate 32 is fixed to the telephone line retraction 31 provided by the elastic plate spring 33, 2 to the front and rear bumper portions of the lower main frame 1 by inserting the insulating plate 27 on each of the ladder footsteps 11, And a battery 28 and a charger 29 and a relay control box 30 are built in the charging battery and the relay storage box 3 on one side of the lower main frame 1. The auxiliary switch 8 is installed in the middle of both sides of the rear rail 10 'and the driven gear 16 is provided in the middle of the wheel shaft 16 of the wheel 9' formed on one side of the lower main frame 1, The fluid clutch 21 is fixed and the clutch lever fixing screw 24 is screwed to the body of the fluid clutch 21 by elastically mounting the fluid clutch 21 with the spring 22 in a floating state, The clutch lever 7 is fitted to the clutch fixing table 25 and fixed to the clutch fixing screw 26 so as to be rotatably fixed so that the driven gear 19 and the clutch driven driven gear 18, ) Mobile exchange ladder structure for telephone exchange to MDF. ※ Note: It is disclosed by the contents of the first application.