JP2001003607A - Flat handle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the breakage of a handle by pivotally fixing the upper end of the handle to a handle support member mounted on the handle storage part of a case, and providing an energizing means for energizing the handle in the direction of storing it in the storage part. SOLUTION: A handle support member 3 is rotatably fitted to the cylindrical part 1C of the handle storage part 1a of a case 1 buried in a front panel 2 such as distribution panel. The upper end of a handle 4 is supported on the support member 3 by a pin 5, and an energizing means 6 for energizing the handle 4 in the direction of storing it to the storage part 1a is installed to the pin 5. A laterally exchanging chip 7 is attachably and detachably mounted on the circumferential surface of a shaft part 3c protrusively provided on the support member 3. Further, a lock 13 for locking the handle 4 in the state where the handle 4 is stored in the storage part 1a is arranged. According to this, since the distribution panel is shipped in the state where the handle 4 is energized and stored into the storage part 1a, the handle 4 is never randomly protruded even if a vibration acts during transportation, and the breakage of the handle 4 can be thus prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat handle mainly used for a switchboard or the like.

[0002]

2. Description of the Related Art Conventionally, a switchboard used for electric wiring and the like is provided with a flat handle for opening and closing a front panel and for locking the front panel. This flat handle is housed in a case so that the handle part does not protrude from the surface of the front panel in normal times.When opening and closing the front panel, the handle is protruded from the case and rotated to open and close the front panel It is configured to be able to perform.

A lock which can be locked and unlocked by a key is provided at the tip of the handle. When the handle is stored in the case, the lock is locked to lock the front panel. It is configured to be able to perform.

[0004]

In the above-mentioned conventional flat handle, the handle housed in the case is constantly urged in a direction in which the handle is projected by an urging means such as a spring. The handle was configured to pop up and protrude from inside the case. For this reason,
If vibrations or the like are applied during transportation of the switchboard or the like, the handle may protrude from the case without permission, which may cause damage.

[0005] In addition, when vibrations or shocks act on a switchboard or the like installed in a passage or the like, there is also a problem that the handle protrudes from the case and touches a pedestrian, thereby obstructing the passage. In addition, the conventional flat handle adopting the pop-up structure has a complicated structure and a large number of parts, which requires a lot of man-hours to manufacture, and is expensive. If the sticking or the like adheres to the pop-up mechanism or the like and becomes clogged, there is also a problem that a malfunction occurs such that the handle does not pop up even when the button or the handle is pressed.

SUMMARY OF THE INVENTION The present invention has been made in order to improve such a conventional problem. A flat handle which does not protrude from the inside of the case by vibrations or the like and which can easily change the rotation direction of the handle is provided. It is intended to provide a simple configuration at a low cost.

[0007]

According to a first aspect of the present invention, there is provided a case having a handle housing portion which is embedded in a front panel which can be opened and closed and has a front opening. A handle support member rotatably and detachably attached to an upper portion of the handle, a handle having an upper end pivotally attached to the handle support member by a pin, and a lower end side rotatable in the front-rear direction around the pin; and the handle And a biasing means for biasing the handle in a forward direction for storing the same in the handle storage portion.

According to the above configuration, even if vibrations or the like are applied during transportation, the handle does not protrude from the handle storage section without permission, so that there is no fear that the handle is damaged during transportation. Further, even during use, since the handle is constantly urged in the direction of storing the handle by the urging means, the handle does not inadvertently protrude, so that troubles such as obstruction of traffic do not occur.

In order to achieve the above object, according to the present invention, a gap for inserting a finger is formed between the lower end of the handle and the lower end of the handle housing.

[0010] With the above structure, the handle can be rotated by pulling out the lower end of the handle with a finger, so that there is no need for a means for popping up the handle, thereby reducing the number of parts and reducing the number of assembly steps. The reliability is high because the operation can be prevented even if the device is used for a long time.

In order to achieve the above object, the invention according to claim 3 is that a left-right conversion tip for changing the rotation direction of the handle by changing the engaging position is detachably attached to the handle support member.

With the above structure, the rotation direction of the handle can be easily changed by the left-right conversion tip, and the left-right conversion tip does not fall off during the conversion work, so that the work is easy and the left-right conversion tip may be lost. Nor.

In order to achieve the above object, a fourth aspect of the present invention is to display a character indicating a rotation direction of a handle on a left-right conversion tip.

According to the above configuration, by setting the left / right conversion chip in accordance with the character display, the conversion operation can be easily performed, and the erroneous setting of the rotation direction can be prevented.

According to a fifth aspect of the present invention, a packing is provided on the back surface of the case so as to surround the periphery of the handle accommodating portion. Are fitted in the concave grooves formed in the groove.

With the above structure, when the case is mounted on the front panel, the packing does not shift, so that the sealing function is not impaired, and the packing does not protrude from the case and the case is not offset and mounted. , The appearance is not spoiled.

[0017]

Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of a flat handle, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, FIG. 3 is a back view of the flat handle, and FIG. FIG. 5 is an exploded perspective view, FIG. 5 is a sectional view taken along the line BB of FIG. 3, and (a) and (b) of FIG.

In these figures, reference numeral 1 denotes a case of a flat handle, which is embedded in the open end side of a front panel which can be opened and closed at a front opening of a switchboard or the like. The case 1 has a rectangular shape elongated in the vertical direction, and has a front opening. It has a handle storage portion 1a, and a flange 1b is protruded in a frame shape at an opening edge of the handle storage portion 1a, and when the case 1 is embedded in the front panel 2, the back surface of this flange 1b is As shown in FIG. 2, the front panel 2 is in contact with the front surface of the front panel 2 via a packing 1b. The upper portion of the handle storage portion 1a is cylindrical, and a cylindrical handle support member 3 is rotatably fitted into the cylindrical portion 1c. The front end of the handle support member 3 has an inverted U
A letter-shaped notch 3a is formed, and the upper end of the handle 4 is fitted into the notch 3a.

The upper end of the handle 4 is supported on the handle support member 3 by a pin 5 penetrating in the left-right direction. The lower end of the handle 4 is rotatable around the pin 5 in the front-rear direction. The pin 5 is fitted with an urging means 6 for urging the handle 4 in a direction in which the handle 4 is housed in the handle housing 1a. The urging means 6 is formed of, for example, a helical spring. One end is engaged with the upper end of the handle 4, and the other end is a recess 3 formed in the handle support member 3.
b.

Also, on the rear end surface of the handle support member 3,
As shown in FIG. 4, a shaft portion 3c and a substantially fan-shaped engaging portion 3d are integrally provided below the shaft portion 3c. A substantially fan-shaped left and right replacement chip 7 is detachably mounted on the outer peripheral surface of the shaft portion 3c. The left and right replacement chips 7 select the rotation direction of the handle 4 in accordance with the opening and closing direction of the front panel 2, and as shown in FIG. The letters 7a and 7b of `` R '' are displayed upside down, and a locking pin 7c is projected from the back surface.The locking pin 7c is attached to the rear end face of the handle support member 3 by a shaft. By selectively inserting into a pair of locking holes 3d, 3e protruding so as to face each other with the portion 3c interposed therebetween, the rotation direction of the handle 4 can be changed as in the operation described later. When the handle support member 3 is housed in the cylindrical portion 1c of the case 1, one end of the left / right conversion chip 7 is brought into contact with a stopper 1i protruding in the cylindrical portion 1c, and the rotation direction of the handle 4 is changed. It is regulated in one direction.

The shaft portion 3c is connected to the cylindrical contact 1c of the case 1.
It is rotatably supported in a shaft hole 1h opened in the bottom surface, and is chamfered in a square at the tip of the shaft portion 3c. In the chamfered portion 3f, a mounting hole opened on one end side of the stopper 8 8a is fitted via a washer 8b, and is fixed so as not to come off by a fixing tool 9 screwed into the chamfered portion 3f.

2 and 3, reference numeral 10 denotes a bracket for fixing the case 1 to the front panel 2. The bracket 10 is attached to the fixture 11 from the back of the front panel 2 to the back of the case 1.
The case 1 is fixed to the front panel 2 by tightly fitting the front panel 2 between the flange 1b and the bracket 10.

On the other hand, the handle 4 is shorter than the entire length of the handle storage portion 1a of the case 1, and
When the handle 4 is stored in the handle 1a, a gap 12 for inserting a finger is formed between the lower end of the handle 4 and the lower end of the handle storage portion 1a. A lock 13 is provided for locking the handle 4 in a state where the handle 4 is stored in the handle storage section 1a.

The lock 13 comprises a cylinder 13b having a key hole 13a for inserting a key (not shown), and a cam 13c which comes and goes by rotating the cylinder 13b with the key. Is engaged with a locking groove 1e formed in a lower portion of the case 1, so that the handle 4 is locked and cut off.

In order to prevent rainwater or the like from entering the inside of the switchboard or the like, an O-ring 15 is provided on the outer peripheral surface of the handle support member 3, and a frame-shaped packing 16 is provided on the back surface of the case 1. ing. The O-ring 15 is fitted in an annular groove 14 formed on the outer peripheral surface of the handle support member 3, and prevents rainwater or the like from entering the inside of a switchboard or the like from the shaft hole 1h, The packing 16 is formed in a frame shape so as to surround a handle storage portion 1a protruding from the back surface of the case 1, and protruding ribs 16a are protrudingly provided on upper and lower sides and left and right sides, respectively. By fitting 16a to four concave grooves 1f formed on the back surface of the flange 1b, the packing 16 is prevented from shifting when the case 1 is mounted on the front panel 2, thereby displacing from the periphery of the flange 1b. This prevents the packing 16 from sticking out and damaging the appearance.

Next, the operation of the above-structured flat handle will be described. When manufacturing the switchboard, etc., the above-mentioned flat handle is attached to the front panel 2 in advance and shipped.
The handle 4 is moved by the urging means 6 so that the handle storage portion 1 of the case 1 is
Since the handle 4 is urged in the direction of being stored in a, even if vibrations or the like are applied during transportation, the handle 4 does not protrude without permission, which may cause damage to the handle 4 during transportation. Absent.

Also, when a switchboard or the like is installed on the site and used, the handle 4 is not biased by the biasing means 6 in the direction of being housed in the handle housing 1a of the case 1, so that the handle 4 is not used. Inconveniences such as inadvertent protrusion and obstruction of traffic do not occur.

On the other hand, when opening the front panel 2, the lock 1
The key 13 is inserted into the key hole 13a and rotated
Then, when a finger is inserted into the gap 12 and the lower end of the handle 4 is pulled out to the position shown by the imaginary line in FIG. 2, the handle 4 is rotated to the position shown by the imaginary line in FIG. As a result, the stopper 8 comes off, and in this state, the front panel 2 can be opened by pulling the handle 4 toward the user.

When the front panel 2 is closed, the front panel 2 is closed while the handle 4 is turned to the position shown by the imaginary line in FIG. 1, and then the handle 4 is turned to a substantially vertical position. When the handle 4 is released, the handle 4 is automatically stored in the handle storage portion 1a by the urging force of the urging means 6, so that the handle 4 does not protrude forward of the front panel 2 after the front panel 2 is closed. At the same time, when locking the front panel, by inserting a key into the lock 13 and rotating it, the cam 13c is engaged with the engagement groove 1e, and the handle 4 cannot be pulled out, thereby causing the front panel 2 to be pulled out. Be able to lock.

On the other hand, when changing the direction of rotation of the handle 4 at the site, the fastener 9 fixing the catch 8 is loosened and the catch 8 is removed.
Pull out toward you. Next, the left / right conversion chip 7 that is in close contact with the shaft portion 3c is removed as shown in FIG. 4, and the left / right conversion chip 7 is set as follows so as to have a desired rotation direction. As shown in FIG. 4, the left-right conversion chip 7
Since the characters 7a and 7b of "L" and "right R" are displayed, if you want to change the handle 4 to the left rotation, the character 7a of "left L"
The left-right conversion chip 7 is positioned as shown in FIG. 6 (a) so that the handle 4 can be seen correctly, the engaging pin 7c protruding from the left-right conversion chip 7 is inserted into the engagement hole 3d, and the handle 4 is moved to the right. In order to change the rotation, the right / left conversion chip 7 is positioned as shown in FIG. 6 (b) so that the character 7b of “R” can be seen correctly, and the locking pin protruding from the left / right conversion chip 7 is provided. 7c is inserted into the locking hole 3e.

As described above, when the setting of the left / right conversion chip 7 is completed, the handle support member 3 is inserted into the cylindrical portion 1c from the front of the case 1, and the stopper 8 is attached to the chamfered portion 3f. Thus, the rotation method of the handle 4 can be changed to left or right.

Further, since the left / right conversion chip 7 is housed in the tubular portion 1c in advance, when the handle 4 and the handle support member 3 are taken out at the site, the left / right combination member 7 does not attach or detach. The conversion work can be done easily by
There is no need to worry about losing the left-right conversion chip 7. When it is desired to rotate the handle 4 in either the left or right direction, the left / right conversion chip 7 may be removed.

[0033]

According to the present invention, as described in detail above, the handle is urged by the urging means in the direction in which the handle is stored in the handle storage portion of the case. Since the handle does not protrude from the handle storage part, there is no need to worry about the handle being damaged during transportation, and even during use, the handle is constantly biased in the handle storage direction by the biasing means. The handle does not protrude carelessly and does not cause any trouble such as obstruction of traffic.

Also, since a gap for inserting a finger is provided between the lower end of the handle and the lower end of the handle housing, the handle can be rotated by pulling out the handle with the finger, so that the handle pops up. It is not necessary to provide a separate means, which can reduce the number of parts and the number of assembling steps, making it possible to provide a flat handle at low cost and to prevent dust and the like from adhering even after long-term use. The reliability is high because there is no fear of malfunction.

Further, since the left and right conversion tip for changing the rotation direction of the handle is provided on the handle support member by changing the locking position, the rotation direction of the handle can be easily changed by the left and right conversion tip. Since the left and right conversion chips do not fall off during the conversion work, the operation is easy and there is no fear of losing the left and right conversion chips.

Further, since the characters indicating the direction of rotation of the handle are displayed on the left / right conversion chip, by setting the left / right conversion chip in accordance with the character display, the conversion work can be performed easily and the rotation direction can be set incorrectly. Can be prevented.

Further, packing is provided on the back surface of the case so as to surround the periphery of the handle housing portion, and ridges protruding at a plurality of positions of the packing are fitted into concave grooves formed on the back surface of the case 1. As a result, when mounting the case on the front panel, the packing does not slip and the sealing function is not impaired, and the packing does not protrude from the case and the case is not offset and mounted, so the appearance is impaired It will not be.

[Brief description of the drawings]

FIG. 1 is a front view of a flat handle according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a back surface of the flat handle according to the embodiment of the present invention.

FIG. 4 changes the rotation direction of the handle. It is an enlarged front view of a left-right conversion means.

FIG. 5 is a sectional view taken along line BB of FIG. 3;

FIGS. 6A and 6B are explanatory diagrams of the operation of the left-right conversion unit.

[Description of Signs] 1 Case 1a Handle storage section 1f Groove 2 Front panel 3 Handle support member 4 Handle 5 Pin 6 Biasing means 7 Left / right conversion chip 7a, 7b Character display 12 Gap 16 Seal 16a Ridge

Claims (5)

[Claims] 1. A case 1 having a handle storage portion 1a embedded in a front panel 2 which can be freely opened and closed and having an open front surface.
A handle support member 3 rotatably and detachably mounted on the upper part of the hand storage portion 1a; an upper end pivotally connected to the handle support member 3 by a pin 5; A flat handle, comprising: a handle 4 rotatable in a direction; and a biasing means 6 for biasing the handle 4 in a direction in which the handle 4 is stored in the handle storage portion 1a. 2. The flat handle according to claim 1, wherein a gap 12 for inserting a finger is formed between a lower end of the handle 4 and a lower end of the handle housing 1a. 3. The flat handle according to claim 1, wherein a left-right conversion tip for changing a rotation direction of the handle by changing an engaging position is detachably attached to the handle support member. 4. The flat handle according to claim 3, wherein characters 7a and 7b indicating the rotation direction of the handle 4 are displayed on the left-right conversion chip 7. 5. A packing 16 is provided on the back surface of the case 1 so as to surround the periphery of the handle housing 1a.
The protrusions (16a) projecting at a plurality of locations of (16) are fitted into concave grooves (1f) formed on the back surface of the case (1).
The flat handle according to the item.